diff options
Diffstat (limited to 'arch/sparc')
101 files changed, 1750 insertions, 2243 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 45d9c87d083..e48f471be54 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -50,6 +50,8 @@ config SPARC64 select RTC_DRV_STARFIRE select HAVE_PERF_EVENTS select PERF_USE_VMALLOC + select HAVE_GENERIC_HARDIRQS + select GENERIC_HARDIRQS_NO_DEPRECATED config ARCH_DEFCONFIG string @@ -107,10 +109,6 @@ config NEED_PER_CPU_EMBED_FIRST_CHUNK config NEED_PER_CPU_PAGE_FIRST_CHUNK def_bool y if SPARC64 -config GENERIC_HARDIRQS_NO__DO_IRQ - bool - def_bool y if SPARC64 - config MMU bool default y @@ -276,10 +274,6 @@ config HOTPLUG_CPU can be controlled through /sys/devices/system/cpu/cpu#. Say N if you want to disable CPU hotplug. -config GENERIC_HARDIRQS - bool - default y if SPARC64 - source "kernel/time/Kconfig" if SPARC64 @@ -467,6 +461,39 @@ config SPARC_LEON from www.gaisler.com. You can download a sparc-linux cross-compilation toolchain at www.gaisler.com. +if SPARC_LEON +menu "U-Boot options" + +config UBOOT_LOAD_ADDR + hex "uImage Load Address" + default 0x40004000 + ---help--- + U-Boot kernel load address, the address in physical address space + where u-boot will place the Linux kernel before booting it. + This address is normally the base address of main memory + 0x4000. + +config UBOOT_FLASH_ADDR + hex "uImage.o Load Address" + default 0x00080000 + ---help--- + Optional setting only affecting the uImage.o ELF-image used to + download the uImage file to the target using a ELF-loader other than + U-Boot. It may for example be used to download an uImage to FLASH with + the GRMON utility before even starting u-boot. + +config UBOOT_ENTRY_ADDR + hex "uImage Entry Address" + default 0xf0004000 + ---help--- + Do not change this unless you know what you're doing. This is + hardcoded by the SPARC32 and LEON port. + + This is the virtual address u-boot jumps to when booting the Linux + Kernel. + +endmenu +endif + endmenu menu "Bus options (PCI etc.)" diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index 113225b241e..ad1fb5d969f 100644 --- a/arch/sparc/Makefile +++ b/arch/sparc/Makefile @@ -88,7 +88,7 @@ boot := arch/sparc/boot # Default target all: zImage -image zImage tftpboot.img vmlinux.aout: vmlinux +image zImage uImage tftpboot.img vmlinux.aout: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ archclean: @@ -102,6 +102,7 @@ ifeq ($(ARCH),sparc) define archhelp echo '* image - kernel image ($(boot)/image)' echo '* zImage - stripped kernel image ($(boot)/zImage)' + echo ' uImage - U-Boot SPARC32 Image (only for LEON)' echo ' tftpboot.img - image prepared for tftp' endef else diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index 97e3feb9ff1..9205416b1e6 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -5,26 +5,26 @@ ROOT_IMG := /usr/src/root.img ELFTOAOUT := elftoaout +MKIMAGE := $(srctree)/scripts/mkuboot.sh -hostprogs-y := piggyback_32 piggyback_64 btfixupprep +hostprogs-y := piggyback btfixupprep targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout clean-files := System.map quiet_cmd_elftoaout = ELFTOAOUT $@ cmd_elftoaout = $(ELFTOAOUT) $(obj)/image -o $@ +quiet_cmd_piggy = PIGGY $@ + cmd_piggy = $(obj)/piggyback $(BITS) $@ System.map $(ROOT_IMG) +quiet_cmd_strip = STRIP $@ + cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@ ifeq ($(CONFIG_SPARC32),y) -quiet_cmd_piggy = PIGGY $@ - cmd_piggy = $(obj)/piggyback_32 $@ System.map $(ROOT_IMG) quiet_cmd_btfix = BTFIX $@ cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ quiet_cmd_sysmap = SYSMAP $(obj)/System.map cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap quiet_cmd_image = LD $@ cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@ -quiet_cmd_strip = STRIP $@ - cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $(obj)/image -o $@ - define rule_image $(if $($(quiet)cmd_image), \ @@ -57,10 +57,7 @@ $(obj)/image: $(obj)/btfix.o FORCE $(obj)/zImage: $(obj)/image $(call if_changed,strip) - -$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_32 System.map $(ROOT_IMG) FORCE - $(call if_changed,elftoaout) - $(call if_changed,piggy) + @echo ' kernel: $@ is ready' $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE $(call if_changed,btfix) @@ -68,11 +65,6 @@ $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE endif ifeq ($(CONFIG_SPARC64),y) -quiet_cmd_piggy = PIGGY $@ - cmd_piggy = $(obj)/piggyback_64 $@ System.map $(ROOT_IMG) -quiet_cmd_strip = STRIP $@ - cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start vmlinux -o $@ - # Actual linking $(obj)/image: vmlinux FORCE @@ -81,14 +73,43 @@ $(obj)/image: vmlinux FORCE $(obj)/zImage: $(obj)/image $(call if_changed,gzip) - -$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback_64 System.map $(ROOT_IMG) FORCE - $(call if_changed,elftoaout) - $(call if_changed,piggy) @echo ' kernel: $@ is ready' $(obj)/vmlinux.aout: vmlinux FORCE $(call if_changed,elftoaout) @echo ' kernel: $@ is ready' +else + +# The following lines make a readable image for U-Boot. +# uImage - Binary file read by U-boot +# uImage.o - object file of uImage for loading with a +# flash programmer understanding ELF. + +OBJCOPYFLAGS_image.bin := -S -O binary -R .note -R .comment +$(obj)/image.bin: $(obj)/image FORCE + $(call if_changed,objcopy) + +$(obj)/image.gz: $(obj)/image.bin + $(call if_changed,gzip) + +quiet_cmd_uimage = UIMAGE $@ + cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sparc -O linux -T kernel \ + -C gzip -a $(CONFIG_UBOOT_LOAD_ADDR) \ + -e $(CONFIG_UBOOT_ENTRY_ADDR) -n 'Linux-$(KERNELRELEASE)' \ + -d $< $@ + +quiet_cmd_uimage.o = UIMAGE.O $@ + cmd_uimage.o = $(LD) -Tdata $(CONFIG_UBOOT_FLASH_ADDR) \ + -r -b binary $@ -o $@.o + +targets += uImage +$(obj)/uImage: $(obj)/image.gz + $(call if_changed,uimage) + $(call if_changed,uimage.o) + @echo ' Image $@ is ready' + endif +$(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE + $(call if_changed,elftoaout) + $(call if_changed,piggy) diff --git a/arch/sparc/boot/piggyback.c b/arch/sparc/boot/piggyback.c new file mode 100644 index 00000000000..c0a798fcf03 --- /dev/null +++ b/arch/sparc/boot/piggyback.c @@ -0,0 +1,272 @@ +/* + Simple utility to make a single-image install kernel with initial ramdisk + for Sparc tftpbooting without need to set up nfs. + + Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + Pete Zaitcev <zaitcev@yahoo.com> endian fixes for cross-compiles, 2000. + Copyright (C) 2011 Sam Ravnborg <sam@ravnborg.org> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include <dirent.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <ctype.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> + +#include <sys/types.h> +#include <sys/stat.h> + +/* + * Note: run this on an a.out kernel (use elftoaout for it), + * as PROM looks for a.out image only. + */ + +#define AOUT_TEXT_OFFSET 32 + +static int is64bit = 0; + +/* align to power-of-two size */ +static int align(int n) +{ + if (is64bit) + return (n + 0x1fff) & ~0x1fff; + else + return (n + 0xfff) & ~0xfff; +} + +/* read two bytes as big endian */ +static unsigned short ld2(char *p) +{ + return (p[0] << 8) | p[1]; +} + +/* save 4 bytes as big endian */ +static void st4(char *p, unsigned int x) +{ + p[0] = x >> 24; + p[1] = x >> 16; + p[2] = x >> 8; + p[3] = x; +} + +static void die(const char *str) +{ + perror(str); + exit(1); +} + +static void usage(void) +{ + /* fs_img.gz is an image of initial ramdisk. */ + fprintf(stderr, "Usage: piggyback bits vmlinux.aout System.map fs_img.gz\n"); + fprintf(stderr, "\tKernel image will be modified in place.\n"); + exit(1); +} + +static int start_line(const char *line) +{ + if (strcmp(line + 8, " T _start\n") == 0) + return 1; + else if (strcmp(line + 16, " T _start\n") == 0) + return 1; + return 0; +} + +static int end_line(const char *line) +{ + if (strcmp(line + 8, " A _end\n") == 0) + return 1; + else if (strcmp (line + 16, " A _end\n") == 0) + return 1; + return 0; +} + +/* + * Find address for start and end in System.map. + * The file looks like this: + * f0004000 T _start + * f0379f79 A _end + * 1234567890123456 + * ^coloumn 1 + * There is support for 64 bit addresses too. + * + * Return 0 if either start or end is not found + */ +static int get_start_end(const char *filename, unsigned int *start, + unsigned int *end) +{ + FILE *map; + char buffer[1024]; + + *start = 0; + *end = 0; + map = fopen(filename, "r"); + if (!map) + die(filename); + while (fgets(buffer, 1024, map)) { + if (start_line(buffer)) + *start = strtoul(buffer, NULL, 16); + else if (end_line(buffer)) + *end = strtoul(buffer, NULL, 16); + } + fclose (map); + + if (*start == 0 || *end == 0) + return 0; + + return 1; +} + +#define LOOKBACK (128 * 4) +#define BUFSIZE 1024 +/* + * Find the HdrS entry from head_32/head_64. + * We check if it is at the beginning of the file (sparc64 case) + * and if not we search for it. + * When we search do so in steps of 4 as HdrS is on a 4-byte aligned + * address (it is on same alignment as sparc instructions) + * Return the offset to the HdrS entry (as off_t) + */ +static off_t get_hdrs_offset(int kernelfd, const char *filename) +{ + char buffer[BUFSIZE]; + off_t offset; + int i; + + if (lseek(kernelfd, 0, SEEK_SET) < 0) + die("lseek"); + if (read(kernelfd, buffer, BUFSIZE) != BUFSIZE) + die(filename); + + if (buffer[40] == 'H' && buffer[41] == 'd' && + buffer[42] == 'r' && buffer[43] == 'S') { + return 40; + } else { + /* Find the gokernel label */ + /* Decode offset from branch instruction */ + offset = ld2(buffer + AOUT_TEXT_OFFSET + 2) << 2; + /* Go back 512 bytes so we do not miss HdrS */ + offset -= LOOKBACK; + /* skip a.out header */ + offset += AOUT_TEXT_OFFSET; + if (lseek(kernelfd, offset, SEEK_SET) < 0) + die("lseek"); + if (read(kernelfd, buffer, BUFSIZE) != BUFSIZE) + die(filename); + + for (i = 0; i < LOOKBACK; i += 4) { + if (buffer[i + 0] == 'H' && buffer[i + 1] == 'd' && + buffer[i + 2] == 'r' && buffer[i + 3] == 'S') { + return offset + i; + } + } + } + fprintf (stderr, "Couldn't find headers signature in %s\n", filename); + exit(1); +} + +int main(int argc,char **argv) +{ + static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 }; + char buffer[1024]; + unsigned int i, start, end; + off_t offset; + struct stat s; + int image, tail; + + if (argc != 5) + usage(); + if (strcmp(argv[1], "64") == 0) + is64bit = 1; + if (stat (argv[4], &s) < 0) + die(argv[4]); + + if (!get_start_end(argv[3], &start, &end)) { + fprintf(stderr, "Could not determine start and end from %s\n", + argv[3]); + exit(1); + } + if ((image = open(argv[2], O_RDWR)) < 0) + die(argv[2]); + if (read(image, buffer, 512) != 512) + die(argv[2]); + if (memcmp(buffer, aout_magic, 4) != 0) { + fprintf (stderr, "Not a.out. Don't blame me.\n"); + exit(1); + } + /* + * We need to fill in values for + * sparc_ramdisk_image + sparc_ramdisk_size + * To locate these symbols search for the "HdrS" text which appear + * in the image a little before the gokernel symbol. + * See definition of these in init_32.S + */ + + offset = get_hdrs_offset(image, argv[2]); + /* skip HdrS + LINUX_VERSION_CODE + HdrS version */ + offset += 10; + + if (lseek(image, offset, 0) < 0) + die("lseek"); + + /* + * root_flags = 0 + * root_dev = 1 (RAMDISK_MAJOR) + * ram_flags = 0 + * sparc_ramdisk_image = "PAGE aligned address after _end") + * sparc_ramdisk_size = size of image + */ + st4(buffer, 0); + st4(buffer + 4, 0x01000000); + st4(buffer + 8, align(end + 32)); + st4(buffer + 12, s.st_size); + + if (write(image, buffer + 2, 14) != 14) + die(argv[2]); + + /* For sparc64 update a_text and clear a_data + a_bss */ + if (is64bit) + { + if (lseek(image, 4, 0) < 0) + die("lseek"); + /* a_text */ + st4(buffer, align(end + 32 + 8191) - (start & ~0x3fffffUL) + + s.st_size); + /* a_data */ + st4(buffer + 4, 0); + /* a_bss */ + st4(buffer + 8, 0); + if (write(image, buffer, 12) != 12) + die(argv[2]); + } + + /* seek page aligned boundary in the image file and add boot image */ + if (lseek(image, AOUT_TEXT_OFFSET - start + align(end + 32), 0) < 0) + die("lseek"); + if ((tail = open(argv[4], O_RDONLY)) < 0) + die(argv[4]); + while ((i = read(tail, buffer, 1024)) > 0) + if (write(image, buffer, i) != i) + die(argv[2]); + if (close(image) < 0) + die("close"); + if (close(tail) < 0) + die("close"); + return 0; +} diff --git a/arch/sparc/boot/piggyback_32.c b/arch/sparc/boot/piggyback_32.c deleted file mode 100644 index ac944aec730..00000000000 --- a/arch/sparc/boot/piggyback_32.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - Simple utility to make a single-image install kernel with initial ramdisk - for Sparc tftpbooting without need to set up nfs. - - Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - Pete Zaitcev <zaitcev@yahoo.com> endian fixes for cross-compiles, 2000. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> -#include <unistd.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/stat.h> - -/* - * Note: run this on an a.out kernel (use elftoaout for it), - * as PROM looks for a.out image only. - */ - -static unsigned short ld2(char *p) -{ - return (p[0] << 8) | p[1]; -} - -static unsigned int ld4(char *p) -{ - return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; -} - -static void st4(char *p, unsigned int x) -{ - p[0] = x >> 24; - p[1] = x >> 16; - p[2] = x >> 8; - p[3] = x; -} - -static void usage(void) -{ - /* fs_img.gz is an image of initial ramdisk. */ - fprintf(stderr, "Usage: piggyback vmlinux.aout System.map fs_img.gz\n"); - fprintf(stderr, "\tKernel image will be modified in place.\n"); - exit(1); -} - -static void die(char *str) -{ - perror (str); - exit(1); -} - -int main(int argc,char **argv) -{ - static char aout_magic[] = { 0x01, 0x03, 0x01, 0x07 }; - char buffer[1024], *q, *r; - unsigned int i, j, k, start, end, offset; - FILE *map; - struct stat s; - int image, tail; - - if (argc != 4) usage(); - start = end = 0; - if (stat (argv[3], &s) < 0) die (argv[3]); - map = fopen (argv[2], "r"); - if (!map) die(argv[2]); - while (fgets (buffer, 1024, map)) { - if (!strcmp (buffer + 8, " T start\n") || !strcmp (buffer + 16, " T start\n")) - start = strtoul (buffer, NULL, 16); - else if (!strcmp (buffer + 8, " A _end\n") || !strcmp (buffer + 16, " A _end\n")) - end = strtoul (buffer, NULL, 16); - } - fclose (map); - if (!start || !end) { - fprintf (stderr, "Could not determine start and end from System.map\n"); - exit(1); - } - if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]); - if (read(image,buffer,512) != 512) die(argv[1]); - if (memcmp (buffer, "\177ELF", 4) == 0) { - q = buffer + ld4(buffer + 28); - i = ld4(q + 4) + ld4(buffer + 24) - ld4(q + 8); - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,512) != 512) die(argv[1]); - j = 0; - } else if (memcmp(buffer, aout_magic, 4) == 0) { - i = j = 32; - } else { - fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); - exit(1); - } - k = i; - i += (ld2(buffer + j + 2)<<2) - 512; - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,1024) != 1024) die(argv[1]); - for (q = buffer, r = q + 512; q < r; q += 4) { - if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') - break; - } - if (q == r) { - fprintf (stderr, "Couldn't find headers signature in the kernel.\n"); - exit(1); - } - offset = i + (q - buffer) + 10; - if (lseek(image, offset, 0) < 0) die ("lseek"); - - st4(buffer, 0); - st4(buffer + 4, 0x01000000); - st4(buffer + 8, (end + 32 + 4095) & ~4095); - st4(buffer + 12, s.st_size); - - if (write(image,buffer+2,14) != 14) die (argv[1]); - if (lseek(image, k - start + ((end + 32 + 4095) & ~4095), 0) < 0) die ("lseek"); - if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]); - while ((i = read (tail,buffer,1024)) > 0) - if (write(image,buffer,i) != i) die (argv[1]); - if (close(image) < 0) die("close"); - if (close(tail) < 0) die("close"); - return 0; -} diff --git a/arch/sparc/boot/piggyback_64.c b/arch/sparc/boot/piggyback_64.c deleted file mode 100644 index a26a686cb5a..00000000000 --- a/arch/sparc/boot/piggyback_64.c +++ /dev/null @@ -1,110 +0,0 @@ -/* - Simple utility to make a single-image install kernel with initial ramdisk - for Sparc64 tftpbooting without need to set up nfs. - - Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <dirent.h> -#include <unistd.h> -#include <stdlib.h> -#include <sys/types.h> -#include <sys/stat.h> - -/* Note: run this on an a.out kernel (use elftoaout for it), as PROM looks for a.out image onlly - usage: piggyback vmlinux System.map tail, where tail is gzipped fs of the initial ramdisk */ - -static void die(char *str) -{ - perror (str); - exit(1); -} - -int main(int argc,char **argv) -{ - char buffer [1024], *q, *r; - unsigned int i, j, k, start, end, offset; - FILE *map; - struct stat s; - int image, tail; - - start = end = 0; - if (stat (argv[3], &s) < 0) die (argv[3]); - map = fopen (argv[2], "r"); - if (!map) die(argv[2]); - while (fgets (buffer, 1024, map)) { - if (!strcmp (buffer + 19, "_start\n")) - start = strtoul (buffer + 8, NULL, 16); - else if (!strcmp (buffer + 19, "_end\n")) - end = strtoul (buffer + 8, NULL, 16); - } - fclose (map); - if ((image = open(argv[1],O_RDWR)) < 0) die(argv[1]); - if (read(image,buffer,512) != 512) die(argv[1]); - if (!memcmp (buffer, "\177ELF", 4)) { - unsigned int *p = (unsigned int *)(buffer + *(unsigned int *)(buffer + 28)); - - i = p[1] + *(unsigned int *)(buffer + 24) - p[2]; - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,512) != 512) die(argv[1]); - j = 0; - } else if (*(unsigned int *)buffer == 0x01030107) { - i = j = 32; - } else { - fprintf (stderr, "Not ELF nor a.out. Don't blame me.\n"); - exit(1); - } - k = i; - if (j == 32 && buffer[40] == 'H' && buffer[41] == 'd' && buffer[42] == 'r' && buffer[43] == 'S') { - offset = 40 + 10; - } else { - i += ((*(unsigned short *)(buffer + j + 2))<<2) - 512; - if (lseek(image,i,0) < 0) die("lseek"); - if (read(image,buffer,1024) != 1024) die(argv[1]); - for (q = buffer, r = q + 512; q < r; q += 4) { - if (*q == 'H' && q[1] == 'd' && q[2] == 'r' && q[3] == 'S') - break; - } - if (q == r) { - fprintf (stderr, "Couldn't find headers signature in the kernel.\n"); - exit(1); - } - offset = i + (q - buffer) + 10; - } - if (lseek(image, offset, 0) < 0) die ("lseek"); - *(unsigned *)buffer = 0; - *(unsigned *)(buffer + 4) = 0x01000000; - *(unsigned *)(buffer + 8) = ((end + 32 + 8191) & ~8191); - *(unsigned *)(buffer + 12) = s.st_size; - if (write(image,buffer+2,14) != 14) die (argv[1]); - if (lseek(image, 4, 0) < 0) die ("lseek"); - *(unsigned *)buffer = ((end + 32 + 8191) & ~8191) - (start & ~0x3fffffUL) + s.st_size; - *(unsigned *)(buffer + 4) = 0; - *(unsigned *)(buffer + 8) = 0; - if (write(image,buffer,12) != 12) die (argv[1]); - if (lseek(image, k - start + ((end + 32 + 8191) & ~8191), 0) < 0) die ("lseek"); - if ((tail = open(argv[3],O_RDONLY)) < 0) die(argv[3]); - while ((i = read (tail,buffer,1024)) > 0) - if (write(image,buffer,i) != i) die (argv[1]); - if (close(image) < 0) die("close"); - if (close(tail) < 0) die("close"); - return 0; -} diff --git a/arch/sparc/include/asm/errno.h b/arch/sparc/include/asm/errno.h index 4e2bc490d71..c351aba997b 100644 --- a/arch/sparc/include/asm/errno.h +++ b/arch/sparc/include/asm/errno.h @@ -112,4 +112,6 @@ #define ERFKILL 134 /* Operation not possible due to RF-kill */ +#define EHWPOISON 135 /* Memory page has hardware error */ + #endif diff --git a/arch/sparc/include/asm/fcntl.h b/arch/sparc/include/asm/fcntl.h index 38f37b333cc..d0b83f66f35 100644 --- a/arch/sparc/include/asm/fcntl.h +++ b/arch/sparc/include/asm/fcntl.h @@ -34,6 +34,8 @@ #define __O_SYNC 0x800000 #define O_SYNC (__O_SYNC|O_DSYNC) +#define O_PATH 0x1000000 + #define F_GETOWN 5 /* for sockets. */ #define F_SETOWN 6 /* for sockets. */ #define F_GETLK 7 diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h index 47f95839dc6..444e7bea23b 100644 --- a/arch/sparc/include/asm/futex_64.h +++ b/arch/sparc/include/asm/futex_64.h @@ -30,7 +30,7 @@ : "r" (uaddr), "r" (oparg), "i" (-EFAULT) \ : "memory") -static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) +static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) { int op = (encoded_op >> 28) & 7; int cmp = (encoded_op >> 24) & 15; @@ -38,7 +38,7 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) int cmparg = (encoded_op << 20) >> 20; int oldval = 0, ret, tem; - if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))) + if (unlikely(!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))) return -EFAULT; if (unlikely((((unsigned long) uaddr) & 0x3UL))) return -EINVAL; @@ -85,26 +85,30 @@ static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) } static inline int -futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) +futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, + u32 oldval, u32 newval) { + int ret = 0; + __asm__ __volatile__( - "\n1: casa [%3] %%asi, %2, %0\n" + "\n1: casa [%4] %%asi, %3, %1\n" "2:\n" " .section .fixup,#alloc,#execinstr\n" " .align 4\n" "3: sethi %%hi(2b), %0\n" " jmpl %0 + %%lo(2b), %%g0\n" - " mov %4, %0\n" + " mov %5, %0\n" " .previous\n" " .section __ex_table,\"a\"\n" " .align 4\n" " .word 1b, 3b\n" " .previous\n" - : "=r" (newval) - : "0" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT) + : "+r" (ret), "=r" (newval) + : "1" (newval), "r" (oldval), "r" (uaddr), "i" (-EFAULT) : "memory"); - return newval; + *uval = newval; + return ret; } #endif /* !(_SPARC64_FUTEX_H) */ diff --git a/arch/sparc/include/asm/ioctls.h b/arch/sparc/include/asm/ioctls.h index 53f4ee009bd..28d0c8b02cc 100644 --- a/arch/sparc/include/asm/ioctls.h +++ b/arch/sparc/include/asm/ioctls.h @@ -19,6 +19,8 @@ #define TCSETS2 _IOW('T', 13, struct termios2) #define TCSETSW2 _IOW('T', 14, struct termios2) #define TCSETSF2 _IOW('T', 15, struct termios2) +#define TIOCGDEV _IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */ +#define TIOCVHANGUP _IO('T', 0x37) /* Note that all the ioctls that are not available in Linux have a * double underscore on the front to: a) avoid some programs to diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h index a0b443cb3c1..4f09666f079 100644 --- a/arch/sparc/include/asm/irq_64.h +++ b/arch/sparc/include/asm/irq_64.h @@ -33,34 +33,34 @@ /* The largest number of unique interrupt sources we support. * If this needs to ever be larger than 255, you need to change - * the type of ino_bucket->virt_irq as appropriate. + * the type of ino_bucket->irq as appropriate. * - * ino_bucket->virt_irq allocation is made during {sun4v_,}build_irq(). + * ino_bucket->irq allocation is made during {sun4v_,}build_irq(). */ #define NR_IRQS 255 -extern void irq_install_pre_handler(int virt_irq, +extern void irq_install_pre_handler(int irq, void (*func)(unsigned int, void *, void *), void *arg1, void *arg2); #define irq_canonicalize(irq) (irq) extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); extern unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino); -extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, +extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *irq_p, unsigned int msi_devino_start, unsigned int msi_devino_end); -extern void sun4v_destroy_msi(unsigned int virt_irq); -extern unsigned int sun4u_build_msi(u32 portid, unsigned int *virt_irq_p, +extern void sun4v_destroy_msi(unsigned int irq); +extern unsigned int sun4u_build_msi(u32 portid, unsigned int *irq_p, unsigned int msi_devino_start, unsigned int msi_devino_end, unsigned long imap_base, unsigned long iclr_base); -extern void sun4u_destroy_msi(unsigned int virt_irq); +extern void sun4u_destroy_msi(unsigned int irq); -extern unsigned char virt_irq_alloc(unsigned int dev_handle, +extern unsigned char irq_alloc(unsigned int dev_handle, unsigned int dev_ino); #ifdef CONFIG_PCI_MSI -extern void virt_irq_free(unsigned int virt_irq); +extern void irq_free(unsigned int irq); #endif extern void __init init_IRQ(void); diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index 3ea5964c43b..c04f96fb753 100644 --- a/arch/sparc/include/asm/leon.h +++ b/arch/sparc/include/asm/leon.h @@ -224,6 +224,18 @@ static inline void sparc_leon3_disable_cache(void) "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2"); }; +static inline unsigned long sparc_leon3_asr17(void) +{ + u32 asr17; + __asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17)); + return asr17; +}; + +static inline int sparc_leon3_cpuid(void) +{ + return sparc_leon3_asr17() >> 28; +} + #endif /*!__ASSEMBLY__*/ #ifdef CONFIG_SMP @@ -363,9 +375,6 @@ void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu); extern unsigned int real_irq_entry[], smpleon_ticker[]; extern unsigned int patchme_maybe_smp_msg[]; -extern unsigned long trapbase_cpu1[]; -extern unsigned long trapbase_cpu2[]; -extern unsigned long trapbase_cpu3[]; extern unsigned int t_nmi[], linux_trap_ipi15_leon[]; extern unsigned int linux_trap_ipi15_sun4m[]; diff --git a/arch/sparc/include/asm/leon_amba.h b/arch/sparc/include/asm/leon_amba.h index 618e8882179..e50f326e71b 100644 --- a/arch/sparc/include/asm/leon_amba.h +++ b/arch/sparc/include/asm/leon_amba.h @@ -100,9 +100,8 @@ struct leon3_irqctrl_regs_map { u32 mpbroadcast; u32 notused02; u32 notused03; - u32 notused10; - u32 notused11; - u32 notused12; + u32 ampctrl; + u32 icsel[2]; u32 notused13; u32 notused20; u32 notused21; @@ -112,6 +111,7 @@ struct leon3_irqctrl_regs_map { u32 force[16]; /* Extended IRQ registers */ u32 intid[16]; /* 0xc0 */ + u32 unused[(0x1000-0x100)/4]; }; struct leon3_apbuart_regs_map { @@ -180,6 +180,7 @@ struct amba_ahb_device { struct device_node; void _amba_init(struct device_node *dp, struct device_node ***nextp); +extern unsigned long amba_system_id; extern struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; extern struct leon3_gptimer_regs_map *leon3_gptimer_regs; extern struct amba_apb_device leon_percpu_timer_dev[16]; @@ -254,6 +255,11 @@ extern unsigned int sparc_leon_eirq; #define GAISLER_L2C 0xffe /* internal device: leon2compat */ #define GAISLER_PLUGPLAY 0xfff /* internal device: plug & play configarea */ +/* Chip IDs */ +#define AEROFLEX_UT699 0x0699 +#define LEON4_NEXTREME1 0x0102 +#define GAISLER_GR712RC 0x0712 + #define amba_vendor(x) (((x) >> 24) & 0xff) #define amba_device(x) (((x) >> 12) & 0xfff) diff --git a/arch/sparc/include/asm/mmu_32.h b/arch/sparc/include/asm/mmu_32.h index ccd36d26615..6f056e535cf 100644 --- a/arch/sparc/include/asm/mmu_32.h +++ b/arch/sparc/include/asm/mmu_32.h @@ -4,4 +4,7 @@ /* Default "unsigned long" context */ typedef unsigned long mm_context_t; +/* mm/srmmu.c */ +extern ctxd_t *srmmu_ctx_table_phys; + #endif diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h index 81cd43432dc..47eaafad15c 100644 --- a/arch/sparc/include/asm/openprom.h +++ b/arch/sparc/include/asm/openprom.h @@ -39,7 +39,7 @@ struct linux_dev_v2_funcs { int (*v2_dev_open)(char *devpath); void (*v2_dev_close)(int d); int (*v2_dev_read)(int d, char *buf, int nbytes); - int (*v2_dev_write)(int d, char *buf, int nbytes); + int (*v2_dev_write)(int d, const char *buf, int nbytes); int (*v2_dev_seek)(int d, int hi, int lo); /* Never issued (multistage load support) */ diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 51296a6f500..71e5e9aeb67 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -48,37 +48,6 @@ extern void prom_init(struct linux_romvec *rom_ptr); /* Boot argument acquisition, returns the boot command line string. */ extern char *prom_getbootargs(void); -/* Device utilities. */ - -/* Map and unmap devices in IO space at virtual addresses. Note that the - * virtual address you pass is a request and the prom may put your mappings - * somewhere else, so check your return value as that is where your new - * mappings really are! - * - * Another note, these are only available on V2 or higher proms! - */ -extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes); -extern void prom_unmapio(char *virt_addr, unsigned int num_bytes); - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ @@ -95,7 +64,7 @@ extern void prom_cmdline(void); /* Enter the prom, with no chance of continuation for the stand-alone * which calls this. */ -extern void prom_halt(void) __attribute__ ((noreturn)); +extern void __noreturn prom_halt(void); /* Set the PROM 'sync' callback function to the passed function pointer. * When the user gives the 'sync' command at the prom prompt while the @@ -121,19 +90,8 @@ extern int prom_getrev(void); /* Get the prom firmware revision. */ extern int prom_getprev(void); -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); @@ -147,25 +105,6 @@ extern void prom_write(const char *buf, unsigned int len); extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table, int context, char *program_counter); -/* Stop the CPU with the passed device tree node. */ -extern int prom_stopcpu(int cpunode); - -/* Idle the CPU with the passed device tree node. */ -extern int prom_idlecpu(int cpunode); - -/* Re-Start the CPU with the passed device tree node. */ -extern int prom_restartcpu(int cpunode); - -/* PROM memory allocation facilities... */ - -/* Allocated at possibly the given virtual address a chunk of the - * indicated size. - */ -extern char *prom_alloc(char *virt_hint, unsigned int size); - -/* Free a previously allocated chunk. */ -extern void prom_free(char *virt_addr, unsigned int size); - /* Sun4/sun4c specific memory-management startup hook. */ /* Map the passed segment in the given context at the passed @@ -174,6 +113,8 @@ extern void prom_free(char *virt_addr, unsigned int size); extern void prom_putsegment(int context, unsigned long virt_addr, int physical_segment); +/* Initialize the memory lists based upon the prom version. */ +void prom_meminit(void); /* PROM device tree traversal functions... */ @@ -208,19 +149,11 @@ extern int prom_getbool(phandle node, char *prop); /* Acquire a string property, null string on error. */ extern void prom_getstring(phandle node, char *prop, char *buf, int bufsize); -/* Does the passed node have the given "name"? YES=1 NO=0 */ -extern int prom_nodematch(phandle thisnode, char *name); - /* Search all siblings starting at the passed node for "name" matching * the given string. Returns the node on success, zero on failure. */ extern phandle prom_searchsiblings(phandle node_start, char *name); -/* Return the first property type, as a string, for the given node. - * Returns a null string on error. - */ -extern char *prom_firstprop(phandle node, char *buffer); - /* Returns the next property after the passed property for the given * node. Returns null string on failure. */ @@ -229,16 +162,12 @@ extern char *prom_nextprop(phandle node, char *prev_property, char *buffer); /* Returns phandle of the path specified */ extern phandle prom_finddevice(char *name); -/* Returns 1 if the specified node has given property. */ -extern int prom_node_has_property(phandle node, char *property); - /* Set the indicated property at the given node with the passed value. * Returns the number of bytes of your value that the prom took. */ extern int prom_setprop(phandle node, const char *prop_name, char *prop_value, int value_size); -extern phandle prom_pathtoinode(char *path); extern phandle prom_inst2pkg(int); /* Dorking with Bus ranges... */ @@ -250,6 +179,8 @@ extern void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nr extern void prom_apply_generic_ranges(phandle node, phandle parent, struct linux_prom_registers *sbusregs, int nregs); +void prom_ranges_init(void); + /* CPU probing helpers. */ int cpu_find_by_instance(int instance, phandle *prom_node, int *mid); int cpu_find_by_mid(int mid, phandle *prom_node); diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h index c9cc078e3e3..97a90475c31 100644 --- a/arch/sparc/include/asm/oplib_64.h +++ b/arch/sparc/include/asm/oplib_64.h @@ -18,8 +18,8 @@ extern char prom_version[]; */ extern phandle prom_root_node; -/* PROM stdin and stdout */ -extern int prom_stdin, prom_stdout; +/* PROM stdout */ +extern int prom_stdout; /* /chosen node of the prom device tree, this stays constant after * initialization is complete. @@ -67,27 +67,6 @@ extern void prom_init(void *cif_handler, void *cif_stack); /* Boot argument acquisition, returns the boot command line string. */ extern char *prom_getbootargs(void); -/* Device utilities. */ - -/* Device operations. */ - -/* Open the device described by the passed string. Note, that the format - * of the string is different on V0 vs. V2->higher proms. The caller must - * know what he/she is doing! Returns the device descriptor, an int. - */ -extern int prom_devopen(const char *device_string); - -/* Close a previously opened device described by the passed integer - * descriptor. - */ -extern int prom_devclose(int device_handle); - -/* Do a seek operation on the device described by the passed integer - * descriptor. - */ -extern void prom_seek(int device_handle, unsigned int seek_hival, - unsigned int seek_lowval); - /* Miscellaneous routines, don't really fit in any category per se. */ /* Reboot the machine with the command line passed. */ @@ -109,33 +88,14 @@ extern void prom_halt(void) __attribute__ ((noreturn)); /* Halt and power-off the machine. */ extern void prom_halt_power_off(void) __attribute__ ((noreturn)); -/* Set the PROM 'sync' callback function to the passed function pointer. - * When the user gives the 'sync' command at the prom prompt while the - * kernel is still active, the prom will call this routine. - * - */ -typedef int (*callback_func_t)(long *cmd); -extern void prom_setcallback(callback_func_t func_ptr); - /* Acquire the IDPROM of the root node in the prom device tree. This * gets passed a buffer where you would like it stuffed. The return value * is the format type of this idprom or 0xff on error. */ extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size); -/* Character operations to/from the console.... */ - -/* Non-blocking get character from console. */ -extern int prom_nbgetchar(void); - -/* Non-blocking put character to console. */ -extern int prom_nbputchar(char character); - -/* Blocking get character from console. */ -extern char prom_getchar(void); - -/* Blocking put character to console. */ -extern void prom_putchar(char character); +/* Write a buffer of characters to the console. */ +extern void prom_console_write_buf(const char *buf, int len); /* Prom's internal routines, don't use in kernel/boot code. */ extern void prom_printf(const char *fmt, ...); @@ -279,9 +239,7 @@ extern phandle prom_finddevice(const char *name); extern int prom_setprop(phandle node, const char *prop_name, char *prop_value, int value_size); -extern phandle prom_pathtoinode(const char *path); extern phandle prom_inst2pkg(int); -extern int prom_service_exists(const char *service_name); extern void prom_sun4v_guest_soft_state(void); extern int prom_ihandle2path(int handle, char *buffer, int bufsize); diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h index aa4c82648d8..cb33608cc68 100644 --- a/arch/sparc/include/asm/parport.h +++ b/arch/sparc/include/asm/parport.h @@ -103,7 +103,7 @@ static inline unsigned int get_dma_residue(unsigned int dmanr) return ebus_dma_residue(&sparc_ebus_dmas[dmanr].info); } -static int __devinit ecpp_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit ecpp_probe(struct platform_device *op) { unsigned long base = op->resource[0].start; unsigned long config = op->resource[1].start; @@ -235,7 +235,7 @@ static const struct of_device_id ecpp_match[] = { {}, }; -static struct of_platform_driver ecpp_driver = { +static struct platform_driver ecpp_driver = { .driver = { .name = "ecpp", .owner = THIS_MODULE, @@ -247,7 +247,7 @@ static struct of_platform_driver ecpp_driver = { static int parport_pc_find_nonpci_ports(int autoirq, int autodma) { - return of_register_platform_driver(&ecpp_driver); + return platform_driver_register(&ecpp_driver); } #endif /* !(_ASM_SPARC64_PARPORT_H */ diff --git a/arch/sparc/include/asm/pcr.h b/arch/sparc/include/asm/pcr.h index a2f5c61f924..843e4faf6a5 100644 --- a/arch/sparc/include/asm/pcr.h +++ b/arch/sparc/include/asm/pcr.h @@ -43,4 +43,6 @@ static inline u64 picl_value(unsigned int nmi_hz) extern u64 pcr_enable; +extern int pcr_arch_init(void); + #endif /* __PCR_H */ diff --git a/arch/sparc/include/asm/perf_event.h b/arch/sparc/include/asm/perf_event.h index 6e8bfa1786d..4d3dbe3703e 100644 --- a/arch/sparc/include/asm/perf_event.h +++ b/arch/sparc/include/asm/perf_event.h @@ -4,8 +4,6 @@ #ifdef CONFIG_PERF_EVENTS #include <asm/ptrace.h> -extern void init_hw_perf_events(void); - #define perf_arch_fetch_caller_regs(regs, ip) \ do { \ unsigned long _pstate, _asi, _pil, _i7, _fp; \ @@ -26,8 +24,6 @@ do { \ (regs)->u_regs[UREG_I6] = _fp; \ (regs)->u_regs[UREG_I7] = _i7; \ } while (0) -#else -static inline void init_hw_perf_events(void) { } #endif #endif diff --git a/arch/sparc/include/asm/rwsem.h b/arch/sparc/include/asm/rwsem.h index a2b4302869b..069bf4d663a 100644 --- a/arch/sparc/include/asm/rwsem.h +++ b/arch/sparc/include/asm/rwsem.h @@ -13,53 +13,12 @@ #ifdef __KERNEL__ -#include <linux/list.h> -#include <linux/spinlock.h> - -struct rwsem_waiter; - -struct rw_semaphore { - signed long count; #define RWSEM_UNLOCKED_VALUE 0x00000000L #define RWSEM_ACTIVE_BIAS 0x00000001L #define RWSEM_ACTIVE_MASK 0xffffffffL #define RWSEM_WAITING_BIAS (-RWSEM_ACTIVE_MASK-1) #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) - spinlock_t wait_lock; - struct list_head wait_list; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif -}; - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -# define __RWSEM_DEP_MAP_INIT(lockname) , .dep_map = { .name = #lockname } -#else -# define __RWSEM_DEP_MAP_INIT(lockname) -#endif - -#define __RWSEM_INITIALIZER(name) \ -{ RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED((name).wait_lock), \ - LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) } - -#define DECLARE_RWSEM(name) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name) - -extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); - -extern void __init_rwsem(struct rw_semaphore *sem, const char *name, - struct lock_class_key *key); - -#define init_rwsem(sem) \ -do { \ - static struct lock_class_key __key; \ - \ - __init_rwsem((sem), #sem, &__key); \ -} while (0) /* * lock for reading @@ -160,11 +119,6 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem) return atomic64_add_return(delta, (atomic64_t *)(&sem->count)); } -static inline int rwsem_is_locked(struct rw_semaphore *sem) -{ - return (sem->count != 0); -} - #endif /* __KERNEL__ */ #endif /* _SPARC64_RWSEM_H */ diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h index 841905c1021..d82d7f4c0a7 100644 --- a/arch/sparc/include/asm/smp_32.h +++ b/arch/sparc/include/asm/smp_32.h @@ -29,10 +29,16 @@ */ extern unsigned char boot_cpu_id; +extern volatile unsigned long cpu_callin_map[NR_CPUS]; +extern cpumask_t smp_commenced_mask; +extern struct linux_prom_registers smp_penguin_ctable; typedef void (*smpfunc_t)(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); +void cpu_panic(void); +extern void smp4m_irq_rotate(int cpu); + /* * General functions that each host system must provide. */ diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 599398fbbc7..99aa4db6e9c 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -42,7 +42,6 @@ obj-$(CONFIG_SPARC32) += windows.o obj-y += cpu.o obj-$(CONFIG_SPARC32) += devices.o obj-$(CONFIG_SPARC32) += tadpole.o -obj-$(CONFIG_SPARC32) += tick14.o obj-y += ptrace_$(BITS).o obj-y += unaligned_$(BITS).o obj-y += una_asm_$(BITS).o @@ -54,6 +53,7 @@ obj-y += of_device_$(BITS).o obj-$(CONFIG_SPARC64) += prom_irqtrans.o obj-$(CONFIG_SPARC_LEON)+= leon_kernel.o +obj-$(CONFIG_SPARC_LEON)+= leon_pmc.o obj-$(CONFIG_SPARC64) += reboot.o obj-$(CONFIG_SPARC64) += sysfs.o diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index 52de4a9424e..f679c57644d 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -137,8 +137,7 @@ static const struct file_operations apc_fops = { static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops }; -static int __devinit apc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit apc_probe(struct platform_device *op) { int err; @@ -174,7 +173,7 @@ static struct of_device_id __initdata apc_match[] = { }; MODULE_DEVICE_TABLE(of, apc_match); -static struct of_platform_driver apc_driver = { +static struct platform_driver apc_driver = { .driver = { .name = "apc", .owner = THIS_MODULE, @@ -185,7 +184,7 @@ static struct of_platform_driver apc_driver = { static int __init apc_init(void) { - return of_register_platform_driver(&apc_driver); + return platform_driver_register(&apc_driver); } /* This driver is not critical to the boot process diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c index 35f48837871..8505e0ac78b 100644 --- a/arch/sparc/kernel/auxio_32.c +++ b/arch/sparc/kernel/auxio_32.c @@ -121,7 +121,7 @@ void __init auxio_power_probe(void) node = prom_searchsiblings(node, "obio"); node = prom_getchild(node); node = prom_searchsiblings(node, "power"); - if (node == 0 || node == -1) + if (node == 0 || (s32)node == -1) return; /* Map the power control register. */ diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c index 3efd3c5af6a..2abace076c7 100644 --- a/arch/sparc/kernel/auxio_64.c +++ b/arch/sparc/kernel/auxio_64.c @@ -102,8 +102,7 @@ static struct of_device_id __initdata auxio_match[] = { MODULE_DEVICE_TABLE(of, auxio_match); -static int __devinit auxio_probe(struct platform_device *dev, - const struct of_device_id *match) +static int __devinit auxio_probe(struct platform_device *dev) { struct device_node *dp = dev->dev.of_node; unsigned long size; @@ -132,7 +131,7 @@ static int __devinit auxio_probe(struct platform_device *dev, return 0; } -static struct of_platform_driver auxio_driver = { +static struct platform_driver auxio_driver = { .probe = auxio_probe, .driver = { .name = "auxio", @@ -143,7 +142,7 @@ static struct of_platform_driver auxio_driver = { static int __init auxio_init(void) { - return of_register_platform_driver(&auxio_driver); + return platform_driver_register(&auxio_driver); } /* Must be after subsys_initcall() so that busses are probed. Must diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index cfa2624c533..136d3718a74 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -59,8 +59,7 @@ static int __devinit clock_board_calc_nslots(struct clock_board *p) } } -static int __devinit clock_board_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit clock_board_probe(struct platform_device *op) { struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; @@ -148,7 +147,7 @@ static struct of_device_id __initdata clock_board_match[] = { {}, }; -static struct of_platform_driver clock_board_driver = { +static struct platform_driver clock_board_driver = { .probe = clock_board_probe, .driver = { .name = "clock_board", @@ -157,8 +156,7 @@ static struct of_platform_driver clock_board_driver = { }, }; -static int __devinit fhc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit fhc_probe(struct platform_device *op) { struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; @@ -254,7 +252,7 @@ static struct of_device_id __initdata fhc_match[] = { {}, }; -static struct of_platform_driver fhc_driver = { +static struct platform_driver fhc_driver = { .probe = fhc_probe, .driver = { .name = "fhc", @@ -265,8 +263,8 @@ static struct of_platform_driver fhc_driver = { static int __init sunfire_init(void) { - (void) of_register_platform_driver(&fhc_driver); - (void) of_register_platform_driver(&clock_board_driver); + (void) platform_driver_register(&fhc_driver); + (void) platform_driver_register(&clock_board_driver); return 0; } diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c index 08c466ebb32..668c7be5d36 100644 --- a/arch/sparc/kernel/chmc.c +++ b/arch/sparc/kernel/chmc.c @@ -392,8 +392,7 @@ static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, } } -static int __devinit jbusmc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit jbusmc_probe(struct platform_device *op) { const struct linux_prom64_registers *mem_regs; struct device_node *mem_node; @@ -690,8 +689,7 @@ static void chmc_fetch_decode_regs(struct chmc *p) chmc_read_mcreg(p, CHMCTRL_DECODE4)); } -static int __devinit chmc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit chmc_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; unsigned long ver; @@ -765,13 +763,12 @@ out_free: goto out; } -static int __devinit us3mc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit us3mc_probe(struct platform_device *op) { if (mc_type == MC_TYPE_SAFARI) - return chmc_probe(op, match); + return chmc_probe(op); else if (mc_type == MC_TYPE_JBUS) - return jbusmc_probe(op, match); + return jbusmc_probe(op); return -ENODEV; } @@ -810,7 +807,7 @@ static const struct of_device_id us3mc_match[] = { }; MODULE_DEVICE_TABLE(of, us3mc_match); -static struct of_platform_driver us3mc_driver = { +static struct platform_driver us3mc_driver = { .driver = { .name = "us3mc", .owner = THIS_MODULE, @@ -848,7 +845,7 @@ static int __init us3mc_init(void) ret = register_dimm_printer(us3mc_dimm_printer); if (!ret) { - ret = of_register_platform_driver(&us3mc_driver); + ret = platform_driver_register(&us3mc_driver); if (ret) unregister_dimm_printer(us3mc_dimm_printer); } @@ -859,7 +856,7 @@ static void __exit us3mc_cleanup(void) { if (us3mc_platform()) { unregister_dimm_printer(us3mc_dimm_printer); - of_unregister_platform_driver(&us3mc_driver); + platform_driver_unregister(&us3mc_driver); } } diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c index e447938d39c..7925c54f413 100644 --- a/arch/sparc/kernel/cpu.c +++ b/arch/sparc/kernel/cpu.c @@ -324,7 +324,7 @@ void __cpuinit cpu_probe(void) psr = get_psr(); put_psr(psr | PSR_EF); #ifdef CONFIG_SPARC_LEON - fpu_vers = 7; + fpu_vers = get_psr() & PSR_EF ? ((get_fsr() >> 17) & 0x7) : 7; #else fpu_vers = ((get_fsr() >> 17) & 0x7); #endif @@ -375,5 +375,5 @@ static int __init cpu_type_probe(void) return 0; } -arch_initcall(cpu_type_probe); +early_initcall(cpu_type_probe); #endif diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index c011b932bb1..d1f1361c416 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -213,8 +213,8 @@ extern struct cheetah_err_info *cheetah_error_log; struct ino_bucket { /*0x00*/unsigned long __irq_chain_pa; - /* Virtual interrupt number assigned to this INO. */ -/*0x08*/unsigned int __virt_irq; + /* Interrupt number assigned to this INO. */ +/*0x08*/unsigned int __irq; /*0x0c*/unsigned int __pad; }; diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S index 21bb2590d4a..59423491cef 100644 --- a/arch/sparc/kernel/head_32.S +++ b/arch/sparc/kernel/head_32.S @@ -73,12 +73,11 @@ sun4e_notsup: /* The Sparc trap table, bootloader gives us control at _start. */ __HEAD - .globl start, _stext, _start, __stext + .globl _stext, _start, __stext .globl trapbase _start: /* danger danger */ __stext: _stext: -start: trapbase: #ifdef CONFIG_SMP trapbase_cpu0: diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 47977a77f6c..6f01e8c8319 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -255,10 +255,9 @@ static inline iopte_t *alloc_npages(struct device *dev, struct iommu *iommu, static int iommu_alloc_ctx(struct iommu *iommu) { int lowest = iommu->ctx_lowest_free; - int sz = IOMMU_NUM_CTXS - lowest; - int n = find_next_zero_bit(iommu->ctx_bitmap, sz, lowest); + int n = find_next_zero_bit(iommu->ctx_bitmap, IOMMU_NUM_CTXS, lowest); - if (unlikely(n == sz)) { + if (unlikely(n == IOMMU_NUM_CTXS)) { n = find_next_zero_bit(iommu->ctx_bitmap, lowest, 1); if (unlikely(n == lowest)) { printk(KERN_WARNING "IOMMU: Ran out of contexts.\n"); @@ -334,13 +333,10 @@ static void dma_4u_free_coherent(struct device *dev, size_t size, void *cpu, dma_addr_t dvma) { struct iommu *iommu; - iopte_t *iopte; unsigned long flags, order, npages; npages = IO_PAGE_ALIGN(size) >> IO_PAGE_SHIFT; iommu = dev->archdata.iommu; - iopte = iommu->page_table + - ((dvma - iommu->page_table_map_base) >> IO_PAGE_SHIFT); spin_lock_irqsave(&iommu->lock, flags); diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 41f7e4e0f72..c6ce9a6a479 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -50,10 +50,14 @@ #include <asm/io-unit.h> #include <asm/leon.h> -#ifdef CONFIG_SPARC_LEON -#define mmu_inval_dma_area(p, l) leon_flush_dcache_all() -#else +#ifndef CONFIG_SPARC_LEON #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ +#else +static inline void mmu_inval_dma_area(void *va, unsigned long len) +{ + if (!sparc_leon3_snooping_enabled()) + leon_flush_dcache_all(); +} #endif static struct resource *_sparc_find_resource(struct resource *r, @@ -254,7 +258,7 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len, dma_addr_t *dma_addrp, gfp_t gfp) { struct platform_device *op = to_platform_device(dev); - unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK; + unsigned long len_total = PAGE_ALIGN(len); unsigned long va; struct resource *res; int order; @@ -280,7 +284,8 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len, printk("sbus_alloc_consistent: cannot occupy 0x%lx", len_total); goto err_nova; } - mmu_inval_dma_area(va, len_total); + mmu_inval_dma_area((void *)va, len_total); + // XXX The mmu_map_dma_area does this for us below, see comments. // sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); /* @@ -297,9 +302,9 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len, err_noiommu: release_resource(res); err_nova: - free_pages(va, order); -err_nomem: kfree(res); +err_nomem: + free_pages(va, order); err_nopages: return NULL; } @@ -321,7 +326,7 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p, return; } - n = (n + PAGE_SIZE-1) & PAGE_MASK; + n = PAGE_ALIGN(n); if ((res->end-res->start)+1 != n) { printk("sbus_free_consistent: region 0x%lx asked 0x%zx\n", (long)((res->end-res->start)+1), n); @@ -408,9 +413,6 @@ struct dma_map_ops sbus_dma_ops = { .sync_sg_for_device = sbus_sync_sg_for_device, }; -struct dma_map_ops *dma_ops = &sbus_dma_ops; -EXPORT_SYMBOL(dma_ops); - static int __init sparc_register_ioport(void) { register_proc_sparc_ioport(); @@ -422,7 +424,9 @@ arch_initcall(sparc_register_ioport); #endif /* CONFIG_SBUS */ -#ifdef CONFIG_PCI + +/* LEON reuses PCI DMA ops */ +#if defined(CONFIG_PCI) || defined(CONFIG_SPARC_LEON) /* Allocate and map kernel buffer using consistent mode DMA for a device. * hwdev should be valid struct pci_dev pointer for PCI devices. @@ -430,8 +434,8 @@ arch_initcall(sparc_register_ioport); static void *pci32_alloc_coherent(struct device *dev, size_t len, dma_addr_t *pba, gfp_t gfp) { - unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK; - unsigned long va; + unsigned long len_total = PAGE_ALIGN(len); + void *va; struct resource *res; int order; @@ -443,34 +447,34 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len, } order = get_order(len_total); - va = __get_free_pages(GFP_KERNEL, order); - if (va == 0) { + va = (void *) __get_free_pages(GFP_KERNEL, order); + if (va == NULL) { printk("pci_alloc_consistent: no %ld pages\n", len_total>>PAGE_SHIFT); - return NULL; + goto err_nopages; } if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) { - free_pages(va, order); printk("pci_alloc_consistent: no core\n"); - return NULL; + goto err_nomem; } if (allocate_resource(&_sparc_dvma, res, len_total, _sparc_dvma.start, _sparc_dvma.end, PAGE_SIZE, NULL, NULL) != 0) { printk("pci_alloc_consistent: cannot occupy 0x%lx", len_total); - free_pages(va, order); - kfree(res); - return NULL; + goto err_nova; } mmu_inval_dma_area(va, len_total); -#if 0 -/* P3 */ printk("pci_alloc_consistent: kva %lx uncva %lx phys %lx size %lx\n", - (long)va, (long)res->start, (long)virt_to_phys(va), len_total); -#endif sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); *pba = virt_to_phys(va); /* equals virt_to_bus (R.I.P.) for us. */ return (void *) res->start; + +err_nova: + kfree(res); +err_nomem: + free_pages((unsigned long)va, order); +err_nopages: + return NULL; } /* Free and unmap a consistent DMA buffer. @@ -485,7 +489,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, dma_addr_t ba) { struct resource *res; - unsigned long pgp; + void *pgp; if ((res = _sparc_find_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { @@ -498,21 +502,21 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, return; } - n = (n + PAGE_SIZE-1) & PAGE_MASK; + n = PAGE_ALIGN(n); if ((res->end-res->start)+1 != n) { printk("pci_free_consistent: region 0x%lx asked 0x%lx\n", (long)((res->end-res->start)+1), (long)n); return; } - pgp = (unsigned long) phys_to_virt(ba); /* bus_to_virt actually */ + pgp = phys_to_virt(ba); /* bus_to_virt actually */ mmu_inval_dma_area(pgp, n); sparc_unmapiorange((unsigned long)p, n); release_resource(res); kfree(res); - free_pages(pgp, get_order(n)); + free_pages((unsigned long)pgp, get_order(n)); } /* @@ -527,6 +531,13 @@ static dma_addr_t pci32_map_page(struct device *dev, struct page *page, return page_to_phys(page) + offset; } +static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size, + enum dma_data_direction dir, struct dma_attrs *attrs) +{ + if (dir != PCI_DMA_TODEVICE) + mmu_inval_dma_area(phys_to_virt(ba), PAGE_ALIGN(size)); +} + /* Map a set of buffers described by scatterlist in streaming * mode for DMA. This is the scather-gather version of the * above pci_map_single interface. Here the scatter gather list @@ -572,9 +583,8 @@ static void pci32_unmap_sg(struct device *dev, struct scatterlist *sgl, if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - (sg->length + PAGE_SIZE-1) & PAGE_MASK); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } @@ -593,8 +603,8 @@ static void pci32_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, enum dma_data_direction dir) { if (dir != PCI_DMA_TODEVICE) { - mmu_inval_dma_area((unsigned long)phys_to_virt(ba), - (size + PAGE_SIZE-1) & PAGE_MASK); + mmu_inval_dma_area(phys_to_virt(ba), + PAGE_ALIGN(size)); } } @@ -602,8 +612,8 @@ static void pci32_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, enum dma_data_direction dir) { if (dir != PCI_DMA_TODEVICE) { - mmu_inval_dma_area((unsigned long)phys_to_virt(ba), - (size + PAGE_SIZE-1) & PAGE_MASK); + mmu_inval_dma_area(phys_to_virt(ba), + PAGE_ALIGN(size)); } } @@ -622,9 +632,8 @@ static void pci32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl, if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - (sg->length + PAGE_SIZE-1) & PAGE_MASK); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } @@ -638,9 +647,8 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist * if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - (sg->length + PAGE_SIZE-1) & PAGE_MASK); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } @@ -649,6 +657,7 @@ struct dma_map_ops pci32_dma_ops = { .alloc_coherent = pci32_alloc_coherent, .free_coherent = pci32_free_coherent, .map_page = pci32_map_page, + .unmap_page = pci32_unmap_page, .map_sg = pci32_map_sg, .unmap_sg = pci32_unmap_sg, .sync_single_for_cpu = pci32_sync_single_for_cpu, @@ -658,7 +667,16 @@ struct dma_map_ops pci32_dma_ops = { }; EXPORT_SYMBOL(pci32_dma_ops); -#endif /* CONFIG_PCI */ +#endif /* CONFIG_PCI || CONFIG_SPARC_LEON */ + +#ifdef CONFIG_SPARC_LEON +struct dma_map_ops *dma_ops = &pci32_dma_ops; +#elif defined(CONFIG_SBUS) +struct dma_map_ops *dma_ops = &sbus_dma_ops; +#endif + +EXPORT_SYMBOL(dma_ops); + /* * Return whether the given PCI device DMA address mask can be @@ -717,7 +735,7 @@ static const struct file_operations sparc_io_proc_fops = { static struct resource *_sparc_find_resource(struct resource *root, unsigned long hit) { - struct resource *tmp; + struct resource *tmp; for (tmp = root->child; tmp != 0; tmp = tmp->sibling) { if (tmp->start <= hit && tmp->end >= hit) diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h index db751388153..008453b798e 100644 --- a/arch/sparc/kernel/irq.h +++ b/arch/sparc/kernel/irq.h @@ -1,5 +1,41 @@ +#include <linux/platform_device.h> + #include <asm/btfixup.h> +/* sun4m specific type definitions */ + +/* This maps direct to CPU specific interrupt registers */ +struct sun4m_irq_percpu { + u32 pending; + u32 clear; + u32 set; +}; + +/* This maps direct to global interrupt registers */ +struct sun4m_irq_global { + u32 pending; + u32 mask; + u32 mask_clear; + u32 mask_set; + u32 interrupt_target; +}; + +extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; +extern struct sun4m_irq_global __iomem *sun4m_irq_global; + +/* + * Platform specific irq configuration + * The individual platforms assign their platform + * specifics in their init functions. + */ +struct sparc_irq_config { + void (*init_timers)(irq_handler_t); + unsigned int (*build_device_irq)(struct platform_device *op, + unsigned int real_irq); +}; +extern struct sparc_irq_config sparc_irq_config; + + /* Dave Redman (djhr@tadpole.co.uk) * changed these to function pointers.. it saves cycles and will allow * the irq dependencies to be split into different files at a later date @@ -45,12 +81,6 @@ static inline void load_profile_irq(int cpu, int limit) BTFIXUP_CALL(load_profile_irq)(cpu, limit); } -extern void (*sparc_init_timers)(irq_handler_t lvl10_irq); - -extern void claim_ticker14(irq_handler_t irq_handler, - int irq, - unsigned int timeout); - #ifdef CONFIG_SMP BTFIXUPDEF_CALL(void, set_cpu_int, int, int) BTFIXUPDEF_CALL(void, clear_cpu_int, int, int) diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index 5ad6e5c5dbb..7c93df4099c 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -1,8 +1,8 @@ /* - * arch/sparc/kernel/irq.c: Interrupt request handling routines. On the - * Sparc the IRQs are basically 'cast in stone' - * and you are supposed to probe the prom's device - * node trees to find out who's got which IRQ. + * Interrupt request handling routines. On the + * Sparc the IRQs are basically 'cast in stone' + * and you are supposed to probe the prom's device + * node trees to find out who's got which IRQ. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) @@ -11,40 +11,11 @@ * Copyright (C) 1998-2000 Anton Blanchard (anton@samba.org) */ -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/ptrace.h> -#include <linux/errno.h> -#include <linux/linkage.h> #include <linux/kernel_stat.h> -#include <linux/signal.h> -#include <linux/interrupt.h> -#include <linux/slab.h> -#include <linux/random.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/delay.h> -#include <linux/threads.h> -#include <linux/spinlock.h> #include <linux/seq_file.h> -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/psr.h> -#include <asm/smp.h> -#include <asm/vaddrs.h> -#include <asm/timer.h> -#include <asm/openprom.h> -#include <asm/oplib.h> -#include <asm/traps.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/pcic.h> #include <asm/cacheflush.h> -#include <asm/irq_regs.h> +#include <asm/pcic.h> #include <asm/leon.h> #include "kernel.h" @@ -57,6 +28,10 @@ #define SMP_NOP2 #define SMP_NOP3 #endif /* SMP */ + +/* platform specific irq setup */ +struct sparc_irq_config sparc_irq_config; + unsigned long arch_local_irq_save(void) { unsigned long retval; @@ -128,15 +103,7 @@ EXPORT_SYMBOL(arch_local_irq_restore); * */ -static void irq_panic(void) -{ - extern char *cputypval; - prom_printf("machine: %s doesn't have irq handlers defined!\n",cputypval); - prom_halt(); -} -void (*sparc_init_timers)(irq_handler_t ) = - (void (*)(irq_handler_t )) irq_panic; /* * Dave Redman (djhr@tadpole.co.uk) @@ -145,7 +112,7 @@ void (*sparc_init_timers)(irq_handler_t ) = * instead, because some of the devices attach very early, I do something * equally sucky but at least we'll never try to free statically allocated * space or call kmalloc before kmalloc_init :(. - * + * * In fact it's the timer10 that attaches first.. then timer14 * then kmalloc_init is called.. then the tty interrupts attach. * hmmm.... @@ -166,22 +133,20 @@ DEFINE_SPINLOCK(irq_action_lock); int show_interrupts(struct seq_file *p, void *v) { - int i = *(loff_t *) v; - struct irqaction * action; + int i = *(loff_t *)v; + struct irqaction *action; unsigned long flags; #ifdef CONFIG_SMP int j; #endif - if (sparc_cpu_model == sun4d) { - extern int show_sun4d_interrupts(struct seq_file *, void *); - + if (sparc_cpu_model == sun4d) return show_sun4d_interrupts(p, v); - } + spin_lock_irqsave(&irq_action_lock, flags); if (i < NR_IRQS) { action = sparc_irq[i].action; - if (!action) + if (!action) goto out_unlock; seq_printf(p, "%3d: ", i); #ifndef CONFIG_SMP @@ -195,7 +160,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_printf(p, " %c %s", (action->flags & IRQF_DISABLED) ? '+' : ' ', action->name); - for (action=action->next; action; action = action->next) { + for (action = action->next; action; action = action->next) { seq_printf(p, ",%s %s", (action->flags & IRQF_DISABLED) ? " +" : "", action->name); @@ -209,22 +174,20 @@ out_unlock: void free_irq(unsigned int irq, void *dev_id) { - struct irqaction * action; + struct irqaction *action; struct irqaction **actionp; - unsigned long flags; + unsigned long flags; unsigned int cpu_irq; - + if (sparc_cpu_model == sun4d) { - extern void sun4d_free_irq(unsigned int, void *); - sun4d_free_irq(irq, dev_id); return; } cpu_irq = irq & (NR_IRQS - 1); - if (cpu_irq > 14) { /* 14 irq levels on the sparc */ - printk("Trying to free bogus IRQ %d\n", irq); - return; - } + if (cpu_irq > 14) { /* 14 irq levels on the sparc */ + printk(KERN_ERR "Trying to free bogus IRQ %d\n", irq); + return; + } spin_lock_irqsave(&irq_action_lock, flags); @@ -232,7 +195,7 @@ void free_irq(unsigned int irq, void *dev_id) action = *actionp; if (!action->handler) { - printk("Trying to free free IRQ%d\n",irq); + printk(KERN_ERR "Trying to free free IRQ%d\n", irq); goto out_unlock; } if (dev_id) { @@ -242,19 +205,21 @@ void free_irq(unsigned int irq, void *dev_id) actionp = &action->next; } if (!action) { - printk("Trying to free free shared IRQ%d\n",irq); + printk(KERN_ERR "Trying to free free shared IRQ%d\n", + irq); goto out_unlock; } } else if (action->flags & IRQF_SHARED) { - printk("Trying to free shared IRQ%d with NULL device ID\n", irq); + printk(KERN_ERR "Trying to free shared IRQ%d with NULL device ID\n", + irq); goto out_unlock; } - if (action->flags & SA_STATIC_ALLOC) - { - /* This interrupt is marked as specially allocated + if (action->flags & SA_STATIC_ALLOC) { + /* + * This interrupt is marked as specially allocated * so it is a bad idea to free it. */ - printk("Attempt to free statically allocated IRQ%d (%s)\n", + printk(KERN_ERR "Attempt to free statically allocated IRQ%d (%s)\n", irq, action->name); goto out_unlock; } @@ -275,7 +240,6 @@ void free_irq(unsigned int irq, void *dev_id) out_unlock: spin_unlock_irqrestore(&irq_action_lock, flags); } - EXPORT_SYMBOL(free_irq); /* @@ -297,64 +261,62 @@ void synchronize_irq(unsigned int irq) EXPORT_SYMBOL(synchronize_irq); #endif /* SMP */ -void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs) +void unexpected_irq(int irq, void *dev_id, struct pt_regs *regs) { - int i; - struct irqaction * action; + int i; + struct irqaction *action; unsigned int cpu_irq; - + cpu_irq = irq & (NR_IRQS - 1); action = sparc_irq[cpu_irq].action; - printk("IO device interrupt, irq = %d\n", irq); - printk("PC = %08lx NPC = %08lx FP=%08lx\n", regs->pc, + printk(KERN_ERR "IO device interrupt, irq = %d\n", irq); + printk(KERN_ERR "PC = %08lx NPC = %08lx FP=%08lx\n", regs->pc, regs->npc, regs->u_regs[14]); if (action) { - printk("Expecting: "); - for (i = 0; i < 16; i++) - if (action->handler) - printk("[%s:%d:0x%x] ", action->name, - (int) i, (unsigned int) action->handler); + printk(KERN_ERR "Expecting: "); + for (i = 0; i < 16; i++) + if (action->handler) + printk(KERN_CONT "[%s:%d:0x%x] ", action->name, + i, (unsigned int)action->handler); } - printk("AIEEE\n"); + printk(KERN_ERR "AIEEE\n"); panic("bogus interrupt received"); } -void handler_irq(int irq, struct pt_regs * regs) +void handler_irq(int pil, struct pt_regs *regs) { struct pt_regs *old_regs; - struct irqaction * action; + struct irqaction *action; int cpu = smp_processor_id(); -#ifdef CONFIG_SMP - extern void smp4m_irq_rotate(int cpu); -#endif old_regs = set_irq_regs(regs); irq_enter(); - disable_pil_irq(irq); + disable_pil_irq(pil); #ifdef CONFIG_SMP /* Only rotate on lower priority IRQs (scsi, ethernet, etc.). */ - if((sparc_cpu_model==sun4m) && (irq < 10)) + if ((sparc_cpu_model==sun4m) && (pil < 10)) smp4m_irq_rotate(cpu); #endif - action = sparc_irq[irq].action; - sparc_irq[irq].flags |= SPARC_IRQ_INPROGRESS; - kstat_cpu(cpu).irqs[irq]++; + action = sparc_irq[pil].action; + sparc_irq[pil].flags |= SPARC_IRQ_INPROGRESS; + kstat_cpu(cpu).irqs[pil]++; do { if (!action || !action->handler) - unexpected_irq(irq, NULL, regs); - action->handler(irq, action->dev_id); + unexpected_irq(pil, NULL, regs); + action->handler(pil, action->dev_id); action = action->next; } while (action); - sparc_irq[irq].flags &= ~SPARC_IRQ_INPROGRESS; - enable_pil_irq(irq); + sparc_irq[pil].flags &= ~SPARC_IRQ_INPROGRESS; + enable_pil_irq(pil); irq_exit(); set_irq_regs(old_regs); } #if defined(CONFIG_BLK_DEV_FD) || defined(CONFIG_BLK_DEV_FD_MODULE) -/* Fast IRQs on the Sparc can only have one routine attached to them, +/* + * Fast IRQs on the Sparc can only have one routine attached to them, * thus no sharing possible. */ static int request_fast_irq(unsigned int irq, @@ -367,15 +329,13 @@ static int request_fast_irq(unsigned int irq, int ret; #if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON struct tt_entry *trap_table; - extern struct tt_entry trapbase_cpu1, trapbase_cpu2, trapbase_cpu3; #endif - cpu_irq = irq & (NR_IRQS - 1); - if(cpu_irq > 14) { + if (cpu_irq > 14) { ret = -EINVAL; goto out; } - if(!handler) { + if (!handler) { ret = -EINVAL; goto out; } @@ -383,34 +343,33 @@ static int request_fast_irq(unsigned int irq, spin_lock_irqsave(&irq_action_lock, flags); action = sparc_irq[cpu_irq].action; - if(action) { - if(action->flags & IRQF_SHARED) + if (action) { + if (action->flags & IRQF_SHARED) panic("Trying to register fast irq when already shared.\n"); - if(irqflags & IRQF_SHARED) + if (irqflags & IRQF_SHARED) panic("Trying to register fast irq as shared.\n"); /* Anyway, someone already owns it so cannot be made fast. */ - printk("request_fast_irq: Trying to register yet already owned.\n"); + printk(KERN_ERR "request_fast_irq: Trying to register yet already owned.\n"); ret = -EBUSY; goto out_unlock; } - /* If this is flagged as statically allocated then we use our + /* + * If this is flagged as statically allocated then we use our * private struct which is never freed. */ if (irqflags & SA_STATIC_ALLOC) { - if (static_irq_count < MAX_STATIC_ALLOC) - action = &static_irqaction[static_irq_count++]; - else - printk("Fast IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", - irq, devname); + if (static_irq_count < MAX_STATIC_ALLOC) + action = &static_irqaction[static_irq_count++]; + else + printk(KERN_ERR "Fast IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", + irq, devname); } - + if (action == NULL) - action = kmalloc(sizeof(struct irqaction), - GFP_ATOMIC); - - if (!action) { + action = kmalloc(sizeof(struct irqaction), GFP_ATOMIC); + if (!action) { ret = -ENOMEM; goto out_unlock; } @@ -426,9 +385,12 @@ static int request_fast_irq(unsigned int irq, INSTANTIATE(sparc_ttable) #if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON - trap_table = &trapbase_cpu1; INSTANTIATE(trap_table) - trap_table = &trapbase_cpu2; INSTANTIATE(trap_table) - trap_table = &trapbase_cpu3; INSTANTIATE(trap_table) + trap_table = &trapbase_cpu1; + INSTANTIATE(trap_table) + trap_table = &trapbase_cpu2; + INSTANTIATE(trap_table) + trap_table = &trapbase_cpu3; + INSTANTIATE(trap_table) #endif #undef INSTANTIATE /* @@ -454,7 +416,8 @@ out: return ret; } -/* These variables are used to access state from the assembler +/* + * These variables are used to access state from the assembler * interrupt handler, floppy_hardint, so we cannot put these in * the floppy driver image because that would not work in the * modular case. @@ -477,8 +440,6 @@ EXPORT_SYMBOL(pdma_base); unsigned long pdma_areasize; EXPORT_SYMBOL(pdma_areasize); -extern void floppy_hardint(void); - static irq_handler_t floppy_irq_handler; void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs) @@ -494,9 +455,11 @@ void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs) irq_exit(); enable_pil_irq(irq); set_irq_regs(old_regs); - // XXX Eek, it's totally changed with preempt_count() and such - // if (softirq_pending(cpu)) - // do_softirq(); + /* + * XXX Eek, it's totally changed with preempt_count() and such + * if (softirq_pending(cpu)) + * do_softirq(); + */ } int sparc_floppy_request_irq(int irq, unsigned long flags, @@ -511,21 +474,18 @@ EXPORT_SYMBOL(sparc_floppy_request_irq); int request_irq(unsigned int irq, irq_handler_t handler, - unsigned long irqflags, const char * devname, void *dev_id) + unsigned long irqflags, const char *devname, void *dev_id) { - struct irqaction * action, **actionp; + struct irqaction *action, **actionp; unsigned long flags; unsigned int cpu_irq; int ret; - - if (sparc_cpu_model == sun4d) { - extern int sun4d_request_irq(unsigned int, - irq_handler_t , - unsigned long, const char *, void *); + + if (sparc_cpu_model == sun4d) return sun4d_request_irq(irq, handler, irqflags, devname, dev_id); - } + cpu_irq = irq & (NR_IRQS - 1); - if(cpu_irq > 14) { + if (cpu_irq > 14) { ret = -EINVAL; goto out; } @@ -533,7 +493,7 @@ int request_irq(unsigned int irq, ret = -EINVAL; goto out; } - + spin_lock_irqsave(&irq_action_lock, flags); actionp = &sparc_irq[cpu_irq].action; @@ -544,7 +504,8 @@ int request_irq(unsigned int irq, goto out_unlock; } if ((action->flags & IRQF_DISABLED) != (irqflags & IRQF_DISABLED)) { - printk("Attempt to mix fast and slow interrupts on IRQ%d denied\n", irq); + printk(KERN_ERR "Attempt to mix fast and slow interrupts on IRQ%d denied\n", + irq); ret = -EBUSY; goto out_unlock; } @@ -559,14 +520,12 @@ int request_irq(unsigned int irq, if (static_irq_count < MAX_STATIC_ALLOC) action = &static_irqaction[static_irq_count++]; else - printk("Request for IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", irq, devname); + printk(KERN_ERR "Request for IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", + irq, devname); } - if (action == NULL) - action = kmalloc(sizeof(struct irqaction), - GFP_ATOMIC); - - if (!action) { + action = kmalloc(sizeof(struct irqaction), GFP_ATOMIC); + if (!action) { ret = -ENOMEM; goto out_unlock; } @@ -587,7 +546,6 @@ out_unlock: out: return ret; } - EXPORT_SYMBOL(request_irq); void disable_irq_nosync(unsigned int irq) @@ -606,26 +564,30 @@ void enable_irq(unsigned int irq) { __enable_irq(irq); } - EXPORT_SYMBOL(enable_irq); -/* We really don't need these at all on the Sparc. We only have +/* + * We really don't need these at all on the Sparc. We only have * stubs here because they are exported to modules. */ unsigned long probe_irq_on(void) { return 0; } - EXPORT_SYMBOL(probe_irq_on); int probe_irq_off(unsigned long mask) { return 0; } - EXPORT_SYMBOL(probe_irq_off); +static unsigned int build_device_irq(struct platform_device *op, + unsigned int real_irq) +{ + return real_irq; +} + /* djhr * This could probably be made indirect too and assigned in the CPU * bits of the code. That would be much nicer I think and would also @@ -636,11 +598,9 @@ EXPORT_SYMBOL(probe_irq_off); void __init init_IRQ(void) { - extern void sun4c_init_IRQ( void ); - extern void sun4m_init_IRQ( void ); - extern void sun4d_init_IRQ( void ); + sparc_irq_config.build_device_irq = build_device_irq; - switch(sparc_cpu_model) { + switch (sparc_cpu_model) { case sun4c: case sun4: sun4c_init_IRQ(); @@ -656,7 +616,7 @@ void __init init_IRQ(void) #endif sun4m_init_IRQ(); break; - + case sun4d: sun4d_init_IRQ(); break; diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 830d70a3e20..eb16e3b8a2d 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -82,7 +82,7 @@ static void bucket_clear_chain_pa(unsigned long bucket_pa) "i" (ASI_PHYS_USE_EC)); } -static unsigned int bucket_get_virt_irq(unsigned long bucket_pa) +static unsigned int bucket_get_irq(unsigned long bucket_pa) { unsigned int ret; @@ -90,21 +90,20 @@ static unsigned int bucket_get_virt_irq(unsigned long bucket_pa) : "=&r" (ret) : "r" (bucket_pa + offsetof(struct ino_bucket, - __virt_irq)), + __irq)), "i" (ASI_PHYS_USE_EC)); return ret; } -static void bucket_set_virt_irq(unsigned long bucket_pa, - unsigned int virt_irq) +static void bucket_set_irq(unsigned long bucket_pa, unsigned int irq) { __asm__ __volatile__("stwa %0, [%1] %2" : /* no outputs */ - : "r" (virt_irq), + : "r" (irq), "r" (bucket_pa + offsetof(struct ino_bucket, - __virt_irq)), + __irq)), "i" (ASI_PHYS_USE_EC)); } @@ -114,50 +113,49 @@ static struct { unsigned int dev_handle; unsigned int dev_ino; unsigned int in_use; -} virt_irq_table[NR_IRQS]; -static DEFINE_SPINLOCK(virt_irq_alloc_lock); +} irq_table[NR_IRQS]; +static DEFINE_SPINLOCK(irq_alloc_lock); -unsigned char virt_irq_alloc(unsigned int dev_handle, - unsigned int dev_ino) +unsigned char irq_alloc(unsigned int dev_handle, unsigned int dev_ino) { unsigned long flags; unsigned char ent; BUILD_BUG_ON(NR_IRQS >= 256); - spin_lock_irqsave(&virt_irq_alloc_lock, flags); + spin_lock_irqsave(&irq_alloc_lock, flags); for (ent = 1; ent < NR_IRQS; ent++) { - if (!virt_irq_table[ent].in_use) + if (!irq_table[ent].in_use) break; } if (ent >= NR_IRQS) { printk(KERN_ERR "IRQ: Out of virtual IRQs.\n"); ent = 0; } else { - virt_irq_table[ent].dev_handle = dev_handle; - virt_irq_table[ent].dev_ino = dev_ino; - virt_irq_table[ent].in_use = 1; + irq_table[ent].dev_handle = dev_handle; + irq_table[ent].dev_ino = dev_ino; + irq_table[ent].in_use = 1; } - spin_unlock_irqrestore(&virt_irq_alloc_lock, flags); + spin_unlock_irqrestore(&irq_alloc_lock, flags); return ent; } #ifdef CONFIG_PCI_MSI -void virt_irq_free(unsigned int virt_irq) +void irq_free(unsigned int irq) { unsigned long flags; - if (virt_irq >= NR_IRQS) + if (irq >= NR_IRQS) return; - spin_lock_irqsave(&virt_irq_alloc_lock, flags); + spin_lock_irqsave(&irq_alloc_lock, flags); - virt_irq_table[virt_irq].in_use = 0; + irq_table[irq].in_use = 0; - spin_unlock_irqrestore(&virt_irq_alloc_lock, flags); + spin_unlock_irqrestore(&irq_alloc_lock, flags); } #endif @@ -190,7 +188,7 @@ int show_interrupts(struct seq_file *p, void *v) for_each_online_cpu(j) seq_printf(p, "%10u ", kstat_irqs_cpu(i, j)); #endif - seq_printf(p, " %9s", irq_desc[i].chip->name); + seq_printf(p, " %9s", irq_desc[i].irq_data.chip->name); seq_printf(p, " %s", action->name); for (action=action->next; action; action = action->next) @@ -253,39 +251,38 @@ struct irq_handler_data { }; #ifdef CONFIG_SMP -static int irq_choose_cpu(unsigned int virt_irq, const struct cpumask *affinity) +static int irq_choose_cpu(unsigned int irq, const struct cpumask *affinity) { cpumask_t mask; int cpuid; cpumask_copy(&mask, affinity); if (cpus_equal(mask, cpu_online_map)) { - cpuid = map_to_cpu(virt_irq); + cpuid = map_to_cpu(irq); } else { cpumask_t tmp; cpus_and(tmp, cpu_online_map, mask); - cpuid = cpus_empty(tmp) ? map_to_cpu(virt_irq) : first_cpu(tmp); + cpuid = cpus_empty(tmp) ? map_to_cpu(irq) : first_cpu(tmp); } return cpuid; } #else -#define irq_choose_cpu(virt_irq, affinity) \ +#define irq_choose_cpu(irq, affinity) \ real_hard_smp_processor_id() #endif -static void sun4u_irq_enable(unsigned int virt_irq) +static void sun4u_irq_enable(struct irq_data *data) { - struct irq_handler_data *data = get_irq_chip_data(virt_irq); + struct irq_handler_data *handler_data = data->handler_data; - if (likely(data)) { + if (likely(handler_data)) { unsigned long cpuid, imap, val; unsigned int tid; - cpuid = irq_choose_cpu(virt_irq, - irq_desc[virt_irq].affinity); - imap = data->imap; + cpuid = irq_choose_cpu(data->irq, data->affinity); + imap = handler_data->imap; tid = sun4u_compute_tid(imap, cpuid); @@ -294,21 +291,21 @@ static void sun4u_irq_enable(unsigned int virt_irq) IMAP_AID_SAFARI | IMAP_NID_SAFARI); val |= tid | IMAP_VALID; upa_writeq(val, imap); - upa_writeq(ICLR_IDLE, data->iclr); + upa_writeq(ICLR_IDLE, handler_data->iclr); } } -static int sun4u_set_affinity(unsigned int virt_irq, - const struct cpumask *mask) +static int sun4u_set_affinity(struct irq_data *data, + const struct cpumask *mask, bool force) { - struct irq_handler_data *data = get_irq_chip_data(virt_irq); + struct irq_handler_data *handler_data = data->handler_data; - if (likely(data)) { + if (likely(handler_data)) { unsigned long cpuid, imap, val; unsigned int tid; - cpuid = irq_choose_cpu(virt_irq, mask); - imap = data->imap; + cpuid = irq_choose_cpu(data->irq, mask); + imap = handler_data->imap; tid = sun4u_compute_tid(imap, cpuid); @@ -317,7 +314,7 @@ static int sun4u_set_affinity(unsigned int virt_irq, IMAP_AID_SAFARI | IMAP_NID_SAFARI); val |= tid | IMAP_VALID; upa_writeq(val, imap); - upa_writeq(ICLR_IDLE, data->iclr); + upa_writeq(ICLR_IDLE, handler_data->iclr); } return 0; @@ -340,27 +337,26 @@ static int sun4u_set_affinity(unsigned int virt_irq, * sees that, it also hooks up a default ->shutdown method which * invokes ->mask() which we do not want. See irq_chip_set_defaults(). */ -static void sun4u_irq_disable(unsigned int virt_irq) +static void sun4u_irq_disable(struct irq_data *data) { } -static void sun4u_irq_eoi(unsigned int virt_irq) +static void sun4u_irq_eoi(struct irq_data *data) { - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - struct irq_desc *desc = irq_desc + virt_irq; + struct irq_handler_data *handler_data = data->handler_data; + struct irq_desc *desc = irq_desc + data->irq; if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) return; - if (likely(data)) - upa_writeq(ICLR_IDLE, data->iclr); + if (likely(handler_data)) + upa_writeq(ICLR_IDLE, handler_data->iclr); } -static void sun4v_irq_enable(unsigned int virt_irq) +static void sun4v_irq_enable(struct irq_data *data) { - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - unsigned long cpuid = irq_choose_cpu(virt_irq, - irq_desc[virt_irq].affinity); + unsigned int ino = irq_table[data->irq].dev_ino; + unsigned long cpuid = irq_choose_cpu(data->irq, data->affinity); int err; err = sun4v_intr_settarget(ino, cpuid); @@ -377,11 +373,11 @@ static void sun4v_irq_enable(unsigned int virt_irq) ino, err); } -static int sun4v_set_affinity(unsigned int virt_irq, - const struct cpumask *mask) +static int sun4v_set_affinity(struct irq_data *data, + const struct cpumask *mask, bool force) { - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - unsigned long cpuid = irq_choose_cpu(virt_irq, mask); + unsigned int ino = irq_table[data->irq].dev_ino; + unsigned long cpuid = irq_choose_cpu(data->irq, mask); int err; err = sun4v_intr_settarget(ino, cpuid); @@ -392,9 +388,9 @@ static int sun4v_set_affinity(unsigned int virt_irq, return 0; } -static void sun4v_irq_disable(unsigned int virt_irq) +static void sun4v_irq_disable(struct irq_data *data) { - unsigned int ino = virt_irq_table[virt_irq].dev_ino; + unsigned int ino = irq_table[data->irq].dev_ino; int err; err = sun4v_intr_setenabled(ino, HV_INTR_DISABLED); @@ -403,10 +399,10 @@ static void sun4v_irq_disable(unsigned int virt_irq) "err(%d)\n", ino, err); } -static void sun4v_irq_eoi(unsigned int virt_irq) +static void sun4v_irq_eoi(struct irq_data *data) { - unsigned int ino = virt_irq_table[virt_irq].dev_ino; - struct irq_desc *desc = irq_desc + virt_irq; + unsigned int ino = irq_table[data->irq].dev_ino; + struct irq_desc *desc = irq_desc + data->irq; int err; if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) @@ -418,15 +414,15 @@ static void sun4v_irq_eoi(unsigned int virt_irq) "err(%d)\n", ino, err); } -static void sun4v_virq_enable(unsigned int virt_irq) +static void sun4v_virq_enable(struct irq_data *data) { unsigned long cpuid, dev_handle, dev_ino; int err; - cpuid = irq_choose_cpu(virt_irq, irq_desc[virt_irq].affinity); + cpuid = irq_choose_cpu(data->irq, data->affinity); - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; + dev_handle = irq_table[data->irq].dev_handle; + dev_ino = irq_table[data->irq].dev_ino; err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid); if (err != HV_EOK) @@ -447,16 +443,16 @@ static void sun4v_virq_enable(unsigned int virt_irq) dev_handle, dev_ino, err); } -static int sun4v_virt_set_affinity(unsigned int virt_irq, - const struct cpumask *mask) +static int sun4v_virt_set_affinity(struct irq_data *data, + const struct cpumask *mask, bool force) { unsigned long cpuid, dev_handle, dev_ino; int err; - cpuid = irq_choose_cpu(virt_irq, mask); + cpuid = irq_choose_cpu(data->irq, mask); - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; + dev_handle = irq_table[data->irq].dev_handle; + dev_ino = irq_table[data->irq].dev_ino; err = sun4v_vintr_set_target(dev_handle, dev_ino, cpuid); if (err != HV_EOK) @@ -467,13 +463,13 @@ static int sun4v_virt_set_affinity(unsigned int virt_irq, return 0; } -static void sun4v_virq_disable(unsigned int virt_irq) +static void sun4v_virq_disable(struct irq_data *data) { unsigned long dev_handle, dev_ino; int err; - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; + dev_handle = irq_table[data->irq].dev_handle; + dev_ino = irq_table[data->irq].dev_ino; err = sun4v_vintr_set_valid(dev_handle, dev_ino, HV_INTR_DISABLED); @@ -483,17 +479,17 @@ static void sun4v_virq_disable(unsigned int virt_irq) dev_handle, dev_ino, err); } -static void sun4v_virq_eoi(unsigned int virt_irq) +static void sun4v_virq_eoi(struct irq_data *data) { - struct irq_desc *desc = irq_desc + virt_irq; + struct irq_desc *desc = irq_desc + data->irq; unsigned long dev_handle, dev_ino; int err; if (unlikely(desc->status & (IRQ_DISABLED|IRQ_INPROGRESS))) return; - dev_handle = virt_irq_table[virt_irq].dev_handle; - dev_ino = virt_irq_table[virt_irq].dev_ino; + dev_handle = irq_table[data->irq].dev_handle; + dev_ino = irq_table[data->irq].dev_ino; err = sun4v_vintr_set_state(dev_handle, dev_ino, HV_INTR_STATE_IDLE); @@ -504,50 +500,49 @@ static void sun4v_virq_eoi(unsigned int virt_irq) } static struct irq_chip sun4u_irq = { - .name = "sun4u", - .enable = sun4u_irq_enable, - .disable = sun4u_irq_disable, - .eoi = sun4u_irq_eoi, - .set_affinity = sun4u_set_affinity, + .name = "sun4u", + .irq_enable = sun4u_irq_enable, + .irq_disable = sun4u_irq_disable, + .irq_eoi = sun4u_irq_eoi, + .irq_set_affinity = sun4u_set_affinity, }; static struct irq_chip sun4v_irq = { - .name = "sun4v", - .enable = sun4v_irq_enable, - .disable = sun4v_irq_disable, - .eoi = sun4v_irq_eoi, - .set_affinity = sun4v_set_affinity, + .name = "sun4v", + .irq_enable = sun4v_irq_enable, + .irq_disable = sun4v_irq_disable, + .irq_eoi = sun4v_irq_eoi, + .irq_set_affinity = sun4v_set_affinity, }; static struct irq_chip sun4v_virq = { - .name = "vsun4v", - .enable = sun4v_virq_enable, - .disable = sun4v_virq_disable, - .eoi = sun4v_virq_eoi, - .set_affinity = sun4v_virt_set_affinity, + .name = "vsun4v", + .irq_enable = sun4v_virq_enable, + .irq_disable = sun4v_virq_disable, + .irq_eoi = sun4v_virq_eoi, + .irq_set_affinity = sun4v_virt_set_affinity, }; -static void pre_flow_handler(unsigned int virt_irq, - struct irq_desc *desc) +static void pre_flow_handler(unsigned int irq, struct irq_desc *desc) { - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - unsigned int ino = virt_irq_table[virt_irq].dev_ino; + struct irq_handler_data *handler_data = get_irq_data(irq); + unsigned int ino = irq_table[irq].dev_ino; - data->pre_handler(ino, data->arg1, data->arg2); + handler_data->pre_handler(ino, handler_data->arg1, handler_data->arg2); - handle_fasteoi_irq(virt_irq, desc); + handle_fasteoi_irq(irq, desc); } -void irq_install_pre_handler(int virt_irq, +void irq_install_pre_handler(int irq, void (*func)(unsigned int, void *, void *), void *arg1, void *arg2) { - struct irq_handler_data *data = get_irq_chip_data(virt_irq); - struct irq_desc *desc = irq_desc + virt_irq; + struct irq_handler_data *handler_data = get_irq_data(irq); + struct irq_desc *desc = irq_desc + irq; - data->pre_handler = func; - data->arg1 = arg1; - data->arg2 = arg2; + handler_data->pre_handler = func; + handler_data->arg1 = arg1; + handler_data->arg2 = arg2; desc->handle_irq = pre_flow_handler; } @@ -555,81 +550,81 @@ void irq_install_pre_handler(int virt_irq, unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) { struct ino_bucket *bucket; - struct irq_handler_data *data; - unsigned int virt_irq; + struct irq_handler_data *handler_data; + unsigned int irq; int ino; BUG_ON(tlb_type == hypervisor); ino = (upa_readq(imap) & (IMAP_IGN | IMAP_INO)) + inofixup; bucket = &ivector_table[ino]; - virt_irq = bucket_get_virt_irq(__pa(bucket)); - if (!virt_irq) { - virt_irq = virt_irq_alloc(0, ino); - bucket_set_virt_irq(__pa(bucket), virt_irq); - set_irq_chip_and_handler_name(virt_irq, + irq = bucket_get_irq(__pa(bucket)); + if (!irq) { + irq = irq_alloc(0, ino); + bucket_set_irq(__pa(bucket), irq); + set_irq_chip_and_handler_name(irq, &sun4u_irq, handle_fasteoi_irq, "IVEC"); } - data = get_irq_chip_data(virt_irq); - if (unlikely(data)) + handler_data = get_irq_data(irq); + if (unlikely(handler_data)) goto out; - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) { + handler_data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); + if (unlikely(!handler_data)) { prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); prom_halt(); } - set_irq_chip_data(virt_irq, data); + set_irq_data(irq, handler_data); - data->imap = imap; - data->iclr = iclr; + handler_data->imap = imap; + handler_data->iclr = iclr; out: - return virt_irq; + return irq; } static unsigned int sun4v_build_common(unsigned long sysino, struct irq_chip *chip) { struct ino_bucket *bucket; - struct irq_handler_data *data; - unsigned int virt_irq; + struct irq_handler_data *handler_data; + unsigned int irq; BUG_ON(tlb_type != hypervisor); bucket = &ivector_table[sysino]; - virt_irq = bucket_get_virt_irq(__pa(bucket)); - if (!virt_irq) { - virt_irq = virt_irq_alloc(0, sysino); - bucket_set_virt_irq(__pa(bucket), virt_irq); - set_irq_chip_and_handler_name(virt_irq, chip, + irq = bucket_get_irq(__pa(bucket)); + if (!irq) { + irq = irq_alloc(0, sysino); + bucket_set_irq(__pa(bucket), irq); + set_irq_chip_and_handler_name(irq, chip, handle_fasteoi_irq, "IVEC"); } - data = get_irq_chip_data(virt_irq); - if (unlikely(data)) + handler_data = get_irq_data(irq); + if (unlikely(handler_data)) goto out; - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) { + handler_data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); + if (unlikely(!handler_data)) { prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); prom_halt(); } - set_irq_chip_data(virt_irq, data); + set_irq_data(irq, handler_data); /* Catch accidental accesses to these things. IMAP/ICLR handling * is done by hypervisor calls on sun4v platforms, not by direct * register accesses. */ - data->imap = ~0UL; - data->iclr = ~0UL; + handler_data->imap = ~0UL; + handler_data->iclr = ~0UL; out: - return virt_irq; + return irq; } unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) @@ -641,11 +636,11 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino) { - struct irq_handler_data *data; + struct irq_handler_data *handler_data; unsigned long hv_err, cookie; struct ino_bucket *bucket; struct irq_desc *desc; - unsigned int virt_irq; + unsigned int irq; bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC); if (unlikely(!bucket)) @@ -662,32 +657,32 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino) ((unsigned long) bucket + sizeof(struct ino_bucket))); - virt_irq = virt_irq_alloc(devhandle, devino); - bucket_set_virt_irq(__pa(bucket), virt_irq); + irq = irq_alloc(devhandle, devino); + bucket_set_irq(__pa(bucket), irq); - set_irq_chip_and_handler_name(virt_irq, &sun4v_virq, + set_irq_chip_and_handler_name(irq, &sun4v_virq, handle_fasteoi_irq, "IVEC"); - data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); - if (unlikely(!data)) + handler_data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); + if (unlikely(!handler_data)) return 0; /* In order to make the LDC channel startup sequence easier, * especially wrt. locking, we do not let request_irq() enable * the interrupt. */ - desc = irq_desc + virt_irq; + desc = irq_desc + irq; desc->status |= IRQ_NOAUTOEN; - set_irq_chip_data(virt_irq, data); + set_irq_data(irq, handler_data); /* Catch accidental accesses to these things. IMAP/ICLR handling * is done by hypervisor calls on sun4v platforms, not by direct * register accesses. */ - data->imap = ~0UL; - data->iclr = ~0UL; + handler_data->imap = ~0UL; + handler_data->iclr = ~0UL; cookie = ~__pa(bucket); hv_err = sun4v_vintr_set_cookie(devhandle, devino, cookie); @@ -697,30 +692,30 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino) prom_halt(); } - return virt_irq; + return irq; } -void ack_bad_irq(unsigned int virt_irq) +void ack_bad_irq(unsigned int irq) { - unsigned int ino = virt_irq_table[virt_irq].dev_ino; + unsigned int ino = irq_table[irq].dev_ino; if (!ino) ino = 0xdeadbeef; - printk(KERN_CRIT "Unexpected IRQ from ino[%x] virt_irq[%u]\n", - ino, virt_irq); + printk(KERN_CRIT "Unexpected IRQ from ino[%x] irq[%u]\n", + ino, irq); } void *hardirq_stack[NR_CPUS]; void *softirq_stack[NR_CPUS]; -void __irq_entry handler_irq(int irq, struct pt_regs *regs) +void __irq_entry handler_irq(int pil, struct pt_regs *regs) { unsigned long pstate, bucket_pa; struct pt_regs *old_regs; void *orig_sp; - clear_softint(1 << irq); + clear_softint(1 << pil); old_regs = set_irq_regs(regs); irq_enter(); @@ -741,16 +736,16 @@ void __irq_entry handler_irq(int irq, struct pt_regs *regs) while (bucket_pa) { struct irq_desc *desc; unsigned long next_pa; - unsigned int virt_irq; + unsigned int irq; next_pa = bucket_get_chain_pa(bucket_pa); - virt_irq = bucket_get_virt_irq(bucket_pa); + irq = bucket_get_irq(bucket_pa); bucket_clear_chain_pa(bucket_pa); - desc = irq_desc + virt_irq; + desc = irq_desc + irq; if (!(desc->status & IRQ_DISABLED)) - desc->handle_irq(virt_irq, desc); + desc->handle_irq(irq, desc); bucket_pa = next_pa; } @@ -798,9 +793,12 @@ void fixup_irqs(void) raw_spin_lock_irqsave(&irq_desc[irq].lock, flags); if (irq_desc[irq].action && !(irq_desc[irq].status & IRQ_PER_CPU)) { - if (irq_desc[irq].chip->set_affinity) - irq_desc[irq].chip->set_affinity(irq, - irq_desc[irq].affinity); + struct irq_data *data = irq_get_irq_data(irq); + + if (data->chip->irq_set_affinity) + data->chip->irq_set_affinity(data, + data->affinity, + false); } raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags); } diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h index 15d8a3f645c..24ad449886b 100644 --- a/arch/sparc/kernel/kernel.h +++ b/arch/sparc/kernel/kernel.h @@ -3,6 +3,8 @@ #include <linux/interrupt.h> +#include <asm/traps.h> + /* cpu.c */ extern const char *sparc_cpu_type; extern const char *sparc_pmu_type; @@ -26,6 +28,53 @@ extern int static_irq_count; extern spinlock_t irq_action_lock; extern void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs); +extern void init_IRQ(void); + +/* sun4c_irq.c */ +extern void sun4c_init_IRQ(void); + +/* sun4m_irq.c */ +extern unsigned int lvl14_resolution; + +extern void sun4m_init_IRQ(void); +extern void sun4m_clear_profile_irq(int cpu); + +/* sun4d_irq.c */ +extern spinlock_t sun4d_imsk_lock; + +extern void sun4d_init_IRQ(void); +extern int sun4d_request_irq(unsigned int irq, + irq_handler_t handler, + unsigned long irqflags, + const char *devname, void *dev_id); +extern int show_sun4d_interrupts(struct seq_file *, void *); +extern void sun4d_distribute_irqs(void); +extern void sun4d_free_irq(unsigned int irq, void *dev_id); + +/* head_32.S */ +extern unsigned int t_nmi[]; +extern unsigned int linux_trap_ipi15_sun4d[]; +extern unsigned int linux_trap_ipi15_sun4m[]; + +extern struct tt_entry trapbase_cpu1; +extern struct tt_entry trapbase_cpu2; +extern struct tt_entry trapbase_cpu3; + +extern char cputypval[]; + +/* entry.S */ +extern unsigned long lvl14_save[4]; +extern unsigned int real_irq_entry[]; +extern unsigned int smp4d_ticker[]; +extern unsigned int patchme_maybe_smp_msg[]; + +extern void floppy_hardint(void); + +/* trampoline_32.S */ +extern int __smp4m_processor_id(void); +extern int __smp4d_processor_id(void); +extern unsigned long sun4m_cpu_startup; +extern unsigned long sun4d_cpu_startup; #else /* CONFIG_SPARC32 */ #endif /* CONFIG_SPARC32 */ diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index df39a0f0d27..732b0bce600 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -790,16 +790,20 @@ static void send_events(struct ldc_channel *lp, unsigned int event_mask) static irqreturn_t ldc_rx(int irq, void *dev_id) { struct ldc_channel *lp = dev_id; - unsigned long orig_state, hv_err, flags; + unsigned long orig_state, flags; unsigned int event_mask; spin_lock_irqsave(&lp->lock, flags); orig_state = lp->chan_state; - hv_err = sun4v_ldc_rx_get_state(lp->id, - &lp->rx_head, - &lp->rx_tail, - &lp->chan_state); + + /* We should probably check for hypervisor errors here and + * reset the LDC channel if we get one. + */ + sun4v_ldc_rx_get_state(lp->id, + &lp->rx_head, + &lp->rx_tail, + &lp->chan_state); ldcdbg(RX, "RX state[0x%02lx:0x%02lx] head[0x%04lx] tail[0x%04lx]\n", orig_state, lp->chan_state, lp->rx_head, lp->rx_tail); @@ -904,16 +908,20 @@ out: static irqreturn_t ldc_tx(int irq, void *dev_id) { struct ldc_channel *lp = dev_id; - unsigned long flags, hv_err, orig_state; + unsigned long flags, orig_state; unsigned int event_mask = 0; spin_lock_irqsave(&lp->lock, flags); orig_state = lp->chan_state; - hv_err = sun4v_ldc_tx_get_state(lp->id, - &lp->tx_head, - &lp->tx_tail, - &lp->chan_state); + + /* We should probably check for hypervisor errors here and + * reset the LDC channel if we get one. + */ + sun4v_ldc_tx_get_state(lp->id, + &lp->tx_head, + &lp->tx_tail, + &lp->chan_state); ldcdbg(TX, " TX state[0x%02lx:0x%02lx] head[0x%04lx] tail[0x%04lx]\n", orig_state, lp->chan_state, lp->tx_head, lp->tx_tail); diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 2d51527d810..2969f777fa1 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -23,15 +23,17 @@ #include "prom.h" #include "irq.h" -struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; /* interrupt controller base address, initialized by amba_init() */ -struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base address, initialized by amba_init() */ +struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; /* interrupt controller base address */ +struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base address */ struct amba_apb_device leon_percpu_timer_dev[16]; int leondebug_irq_disable; int leon_debug_irqout; static int dummy_master_l10_counter; +unsigned long amba_system_id; -unsigned long leon3_gptimer_irq; /* interrupt controller irq number, initialized by amba_init() */ +unsigned long leon3_gptimer_irq; /* interrupt controller irq number */ +unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */ unsigned int sparc_leon_eirq; #define LEON_IMASK ((&leon3_irqctrl_regs->mask[0])) @@ -105,21 +107,85 @@ static void leon_disable_irq(unsigned int irq_nr) void __init leon_init_timers(irq_handler_t counter_fn) { int irq; + struct device_node *rootnp, *np, *nnp; + struct property *pp; + int len; + int cpu, icsel; + int ampopts; leondebug_irq_disable = 0; leon_debug_irqout = 0; master_l10_counter = (unsigned int *)&dummy_master_l10_counter; dummy_master_l10_counter = 0; - if (leon3_gptimer_regs && leon3_irqctrl_regs) { - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].val, 0); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].rld, - (((1000000 / 100) - 1))); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0); + rootnp = of_find_node_by_path("/ambapp0"); + if (!rootnp) + goto bad; + + /* Find System ID: GRLIB build ID and optional CHIP ID */ + pp = of_find_property(rootnp, "systemid", &len); + if (pp) + amba_system_id = *(unsigned long *)pp->value; + + /* Find IRQMP IRQ Controller Registers base adr otherwise bail out */ + np = of_find_node_by_name(rootnp, "GAISLER_IRQMP"); + if (!np) { + np = of_find_node_by_name(rootnp, "01_00d"); + if (!np) + goto bad; + } + pp = of_find_property(np, "reg", &len); + if (!pp) + goto bad; + leon3_irqctrl_regs = *(struct leon3_irqctrl_regs_map **)pp->value; + + /* Find GPTIMER Timer Registers base address otherwise bail out. */ + nnp = rootnp; + do { + np = of_find_node_by_name(nnp, "GAISLER_GPTIMER"); + if (!np) { + np = of_find_node_by_name(nnp, "01_011"); + if (!np) + goto bad; + } + + ampopts = 0; + pp = of_find_property(np, "ampopts", &len); + if (pp) { + ampopts = *(int *)pp->value; + if (ampopts == 0) { + /* Skip this instance, resource already + * allocated by other OS */ + nnp = np; + continue; + } + } + + /* Select Timer-Instance on Timer Core. Default is zero */ + leon3_gptimer_idx = ampopts & 0x7; + + pp = of_find_property(np, "reg", &len); + if (pp) + leon3_gptimer_regs = *(struct leon3_gptimer_regs_map **) + pp->value; + pp = of_find_property(np, "interrupts", &len); + if (pp) + leon3_gptimer_irq = *(unsigned int *)pp->value; + } while (0); + + if (leon3_gptimer_regs && leon3_irqctrl_regs && leon3_gptimer_irq) { + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx].val, 0); + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx].rld, + (((1000000 / HZ) - 1))); + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, 0); #ifdef CONFIG_SMP leon_percpu_timer_dev[0].start = (int)leon3_gptimer_regs; - leon_percpu_timer_dev[0].irq = leon3_gptimer_irq+1; + leon_percpu_timer_dev[0].irq = leon3_gptimer_irq + 1 + + leon3_gptimer_idx; if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) & (1<<LEON3_GPTIMER_SEPIRQ))) { @@ -127,17 +193,33 @@ void __init leon_init_timers(irq_handler_t counter_fn) BUG(); } - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1))); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0); + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx+1].val, 0); + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld, + (((1000000/HZ) - 1))); + LEON3_BYPASS_STORE_PA( + &leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, 0); # endif + /* + * The IRQ controller may (if implemented) consist of multiple + * IRQ controllers, each mapped on a 4Kb boundary. + * Each CPU may be routed to different IRQCTRLs, however + * we assume that all CPUs (in SMP system) is routed to the + * same IRQ Controller, and for non-SMP only one IRQCTRL is + * accessed anyway. + * In AMP systems, Linux must run on CPU0 for the time being. + */ + cpu = sparc_leon3_cpuid(); + icsel = LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->icsel[cpu/8]); + icsel = (icsel >> ((7 - (cpu&0x7)) * 4)) & 0xf; + leon3_irqctrl_regs += icsel; } else { - printk(KERN_ERR "No Timer/irqctrl found\n"); - BUG(); + goto bad; } - irq = request_irq(leon3_gptimer_irq, + irq = request_irq(leon3_gptimer_irq+leon3_gptimer_idx, counter_fn, (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL); @@ -169,13 +251,13 @@ void __init leon_init_timers(irq_handler_t counter_fn) # endif if (leon3_gptimer_regs) { - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, LEON3_GPTIMER_EN | LEON3_GPTIMER_RL | LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN); #ifdef CONFIG_SMP - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, LEON3_GPTIMER_EN | LEON3_GPTIMER_RL | LEON3_GPTIMER_LD | @@ -183,6 +265,11 @@ void __init leon_init_timers(irq_handler_t counter_fn) #endif } + return; +bad: + printk(KERN_ERR "No Timer/irqctrl found\n"); + BUG(); + return; } void leon_clear_clock_irq(void) @@ -260,7 +347,7 @@ void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu) void __init leon_init_IRQ(void) { - sparc_init_timers = leon_init_timers; + sparc_irq_config.init_timers = leon_init_timers; BTFIXUPSET_CALL(enable_irq, leon_enable_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(disable_irq, leon_disable_irq, BTFIXUPCALL_NORM); diff --git a/arch/sparc/kernel/leon_pmc.c b/arch/sparc/kernel/leon_pmc.c new file mode 100644 index 00000000000..519ca923f59 --- /dev/null +++ b/arch/sparc/kernel/leon_pmc.c @@ -0,0 +1,82 @@ +/* leon_pmc.c: LEON Power-down cpu_idle() handler + * + * Copyright (C) 2011 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB + */ + +#include <linux/init.h> +#include <linux/pm.h> + +#include <asm/leon_amba.h> +#include <asm/leon.h> + +/* List of Systems that need fixup instructions around power-down instruction */ +unsigned int pmc_leon_fixup_ids[] = { + AEROFLEX_UT699, + GAISLER_GR712RC, + LEON4_NEXTREME1, + 0 +}; + +int pmc_leon_need_fixup(void) +{ + unsigned int systemid = amba_system_id >> 16; + unsigned int *id; + + id = &pmc_leon_fixup_ids[0]; + while (*id != 0) { + if (*id == systemid) + return 1; + id++; + } + + return 0; +} + +/* + * CPU idle callback function for systems that need some extra handling + * See .../arch/sparc/kernel/process.c + */ +void pmc_leon_idle_fixup(void) +{ + /* Prepare an address to a non-cachable region. APB is always + * none-cachable. One instruction is executed after the Sleep + * instruction, we make sure to read the bus and throw away the + * value by accessing a non-cachable area, also we make sure the + * MMU does not get a TLB miss here by using the MMU BYPASS ASI. + */ + register unsigned int address = (unsigned int)leon3_irqctrl_regs; + __asm__ __volatile__ ( + "mov %%g0, %%asr19\n" + "lda [%0] %1, %%g0\n" + : + : "r"(address), "i"(ASI_LEON_BYPASS)); +} + +/* + * CPU idle callback function + * See .../arch/sparc/kernel/process.c + */ +void pmc_leon_idle(void) +{ + /* For systems without power-down, this will be no-op */ + __asm__ __volatile__ ("mov %g0, %asr19\n\t"); +} + +/* Install LEON Power Down function */ +static int __init leon_pmc_install(void) +{ + /* Assign power management IDLE handler */ + if (pmc_leon_need_fixup()) + pm_idle = pmc_leon_idle_fixup; + else + pm_idle = pmc_leon_idle; + + printk(KERN_INFO "leon: power management initialized\n"); + + return 0; +} + +/* This driver is not critical to the boot process, don't care + * if initialized late. + */ +late_initcall(leon_pmc_install); diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 16582d85368..8f5de4aa3c0 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -41,6 +41,8 @@ #include <asm/leon.h> #include <asm/leon_amba.h> +#include "kernel.h" + #ifdef CONFIG_SPARC_LEON #include "irq.h" @@ -261,23 +263,23 @@ void __init leon_smp_done(void) /* Free unneeded trap tables */ if (!cpu_isset(1, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu1)); - init_page_count(virt_to_page(trapbase_cpu1)); - free_page((unsigned long)trapbase_cpu1); + ClearPageReserved(virt_to_page(&trapbase_cpu1)); + init_page_count(virt_to_page(&trapbase_cpu1)); + free_page((unsigned long)&trapbase_cpu1); totalram_pages++; num_physpages++; } if (!cpu_isset(2, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu2)); - init_page_count(virt_to_page(trapbase_cpu2)); - free_page((unsigned long)trapbase_cpu2); + ClearPageReserved(virt_to_page(&trapbase_cpu2)); + init_page_count(virt_to_page(&trapbase_cpu2)); + free_page((unsigned long)&trapbase_cpu2); totalram_pages++; num_physpages++; } if (!cpu_isset(3, cpu_present_map)) { - ClearPageReserved(virt_to_page(trapbase_cpu3)); - init_page_count(virt_to_page(trapbase_cpu3)); - free_page((unsigned long)trapbase_cpu3); + ClearPageReserved(virt_to_page(&trapbase_cpu3)); + init_page_count(virt_to_page(&trapbase_cpu3)); + free_page((unsigned long)&trapbase_cpu3); totalram_pages++; num_physpages++; } @@ -437,15 +439,6 @@ void __init leon_blackbox_current(unsigned *addr) } -/* - * CPU idle callback function - * See .../arch/sparc/kernel/process.c - */ -void pmc_leon_idle(void) -{ - __asm__ volatile ("mov %g0, %asr19"); -} - void __init leon_init_smp(void) { /* Patch ipi15 trap table */ @@ -456,13 +449,6 @@ void __init leon_init_smp(void) BTFIXUPSET_CALL(smp_cross_call, leon_cross_call, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(__hard_smp_processor_id, __leon_processor_id, BTFIXUPCALL_NORM); - -#ifndef PMC_NO_IDLE - /* Assign power management IDLE handler */ - pm_idle = pmc_leon_idle; - printk(KERN_INFO "leon: power management initialized\n"); -#endif - } #endif /* CONFIG_SPARC_LEON */ diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index ee3c7dde8d9..8d348c474a2 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -23,17 +23,11 @@ static void *module_map(unsigned long size) { - struct vm_struct *area; - - size = PAGE_ALIGN(size); - if (!size || size > MODULES_LEN) - return NULL; - - area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END); - if (!area) + if (PAGE_ALIGN(size) > MODULES_LEN) return NULL; - - return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL); + return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, + GFP_KERNEL, PAGE_KERNEL, -1, + __builtin_return_address(0)); } static char *dot2underscore(char *name) diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index a4bd7ba74c8..300f810142f 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -270,8 +270,6 @@ int __init nmi_init(void) atomic_set(&nmi_active, -1); } } - if (!err) - init_hw_perf_events(); return err; } diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c index 2d055a1e9cc..a312af40ea8 100644 --- a/arch/sparc/kernel/of_device_32.c +++ b/arch/sparc/kernel/of_device_32.c @@ -13,6 +13,7 @@ #include <asm/leon_amba.h> #include "of_device_common.h" +#include "irq.h" /* * PCI bus specific translator @@ -355,7 +356,8 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, if (intr) { op->archdata.num_irqs = len / sizeof(struct linux_prom_irqs); for (i = 0; i < op->archdata.num_irqs; i++) - op->archdata.irqs[i] = intr[i].pri; + op->archdata.irqs[i] = + sparc_irq_config.build_device_irq(op, intr[i].pri); } else { const unsigned int *irq = of_get_property(dp, "interrupts", &len); @@ -363,64 +365,13 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, if (irq) { op->archdata.num_irqs = len / sizeof(unsigned int); for (i = 0; i < op->archdata.num_irqs; i++) - op->archdata.irqs[i] = irq[i]; + op->archdata.irqs[i] = + sparc_irq_config.build_device_irq(op, irq[i]); } else { op->archdata.num_irqs = 0; } } - if (sparc_cpu_model == sun4d) { - static int pil_to_sbus[] = { - 0, 0, 1, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 0, - }; - struct device_node *io_unit, *sbi = dp->parent; - const struct linux_prom_registers *regs; - int board, slot; - - while (sbi) { - if (!strcmp(sbi->name, "sbi")) - break; - - sbi = sbi->parent; - } - if (!sbi) - goto build_resources; - - regs = of_get_property(dp, "reg", NULL); - if (!regs) - goto build_resources; - - slot = regs->which_io; - - /* If SBI's parent is not io-unit or the io-unit lacks - * a "board#" property, something is very wrong. - */ - if (!sbi->parent || strcmp(sbi->parent->name, "io-unit")) { - printk("%s: Error, parent is not io-unit.\n", - sbi->full_name); - goto build_resources; - } - io_unit = sbi->parent; - board = of_getintprop_default(io_unit, "board#", -1); - if (board == -1) { - printk("%s: Error, lacks board# property.\n", - io_unit->full_name); - goto build_resources; - } - - for (i = 0; i < op->archdata.num_irqs; i++) { - int this_irq = op->archdata.irqs[i]; - int sbusl = pil_to_sbus[this_irq]; - - if (sbusl) - this_irq = (((board + 1) << 5) + - (sbusl << 2) + - slot); - - op->archdata.irqs[i] = this_irq; - } - } -build_resources: build_device_resources(op, parent); op->dev.parent = parent; diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 4137579d9ad..44f41e312f7 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -675,6 +675,7 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) * humanoid. */ err = sysfs_create_file(&dev->dev.kobj, &dev_attr_obppath.attr); + (void) err; } list_for_each_entry(child_bus, &bus->children, node) pci_bus_register_of_sysfs(child_bus); @@ -1001,22 +1002,22 @@ EXPORT_SYMBOL(pci_domain_nr); int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) { struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; - unsigned int virt_irq; + unsigned int irq; if (!pbm->setup_msi_irq) return -EINVAL; - return pbm->setup_msi_irq(&virt_irq, pdev, desc); + return pbm->setup_msi_irq(&irq, pdev, desc); } -void arch_teardown_msi_irq(unsigned int virt_irq) +void arch_teardown_msi_irq(unsigned int irq) { - struct msi_desc *entry = get_irq_msi(virt_irq); + struct msi_desc *entry = get_irq_msi(irq); struct pci_dev *pdev = entry->dev; struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; if (pbm->teardown_msi_irq) - pbm->teardown_msi_irq(virt_irq, pdev); + pbm->teardown_msi_irq(irq, pdev); } #endif /* !(CONFIG_PCI_MSI) */ diff --git a/arch/sparc/kernel/pci_common.c b/arch/sparc/kernel/pci_common.c index 6c7a33af3ba..6e3874b6448 100644 --- a/arch/sparc/kernel/pci_common.c +++ b/arch/sparc/kernel/pci_common.c @@ -295,14 +295,17 @@ static int sun4v_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, unsigned int bus = bus_dev->number; unsigned int device = PCI_SLOT(devfn); unsigned int func = PCI_FUNC(devfn); - unsigned long ret; if (config_out_of_range(pbm, bus, devfn, where)) { /* Do nothing. */ } else { - ret = pci_sun4v_config_put(devhandle, - HV_PCI_DEVICE_BUILD(bus, device, func), - where, size, value); + /* We don't check for hypervisor errors here, but perhaps + * we should and influence our return value depending upon + * what kind of error is thrown. + */ + pci_sun4v_config_put(devhandle, + HV_PCI_DEVICE_BUILD(bus, device, func), + where, size, value); } return PCIBIOS_SUCCESSFUL; } diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c index efb896d6875..3d70f8326ef 100644 --- a/arch/sparc/kernel/pci_fire.c +++ b/arch/sparc/kernel/pci_fire.c @@ -214,11 +214,9 @@ static int pci_fire_msi_setup(struct pci_pbm_info *pbm, unsigned long msiqid, static int pci_fire_msi_teardown(struct pci_pbm_info *pbm, unsigned long msi) { - unsigned long msiqid; u64 val; val = upa_readq(pbm->pbm_regs + MSI_MAP(msi)); - msiqid = (val & MSI_MAP_EQNUM); val &= ~MSI_MAP_VALID; @@ -277,7 +275,7 @@ static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm, { unsigned long cregs = (unsigned long) pbm->pbm_regs; unsigned long imap_reg, iclr_reg, int_ctrlr; - unsigned int virt_irq; + unsigned int irq; int fixup; u64 val; @@ -293,14 +291,14 @@ static int pci_fire_msiq_build_irq(struct pci_pbm_info *pbm, fixup = ((pbm->portid << 6) | devino) - int_ctrlr; - virt_irq = build_irq(fixup, iclr_reg, imap_reg); - if (!virt_irq) + irq = build_irq(fixup, iclr_reg, imap_reg); + if (!irq) return -ENOMEM; upa_writeq(EVENT_QUEUE_CONTROL_SET_EN, pbm->pbm_regs + EVENT_QUEUE_CONTROL_SET(msiqid)); - return virt_irq; + return irq; } static const struct sparc64_msiq_ops pci_fire_msiq_ops = { @@ -455,8 +453,7 @@ static int __devinit pci_fire_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit fire_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit fire_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; @@ -507,7 +504,7 @@ static struct of_device_id __initdata fire_match[] = { {}, }; -static struct of_platform_driver fire_driver = { +static struct platform_driver fire_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -518,7 +515,7 @@ static struct of_platform_driver fire_driver = { static int __init fire_init(void) { - return of_register_platform_driver(&fire_driver); + return platform_driver_register(&fire_driver); } subsys_initcall(fire_init); diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h index e20ed5f06e9..6beb60df31d 100644 --- a/arch/sparc/kernel/pci_impl.h +++ b/arch/sparc/kernel/pci_impl.h @@ -131,9 +131,9 @@ struct pci_pbm_info { void *msi_queues; unsigned long *msi_bitmap; unsigned int *msi_irq_table; - int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev, + int (*setup_msi_irq)(unsigned int *irq_p, struct pci_dev *pdev, struct msi_desc *entry); - void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev); + void (*teardown_msi_irq)(unsigned int irq, struct pci_dev *pdev); const struct sparc64_msiq_ops *msi_ops; #endif /* !(CONFIG_PCI_MSI) */ diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c index b210416ace7..550e937720e 100644 --- a/arch/sparc/kernel/pci_msi.c +++ b/arch/sparc/kernel/pci_msi.c @@ -31,12 +31,12 @@ static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie) err = ops->dequeue_msi(pbm, msiqid, &head, &msi); if (likely(err > 0)) { struct irq_desc *desc; - unsigned int virt_irq; + unsigned int irq; - virt_irq = pbm->msi_irq_table[msi - pbm->msi_first]; - desc = irq_desc + virt_irq; + irq = pbm->msi_irq_table[msi - pbm->msi_first]; + desc = irq_desc + irq; - desc->handle_irq(virt_irq, desc); + desc->handle_irq(irq, desc); } if (unlikely(err < 0)) @@ -121,7 +121,7 @@ static struct irq_chip msi_irq = { /* XXX affinity XXX */ }; -static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, +static int sparc64_setup_msi_irq(unsigned int *irq_p, struct pci_dev *pdev, struct msi_desc *entry) { @@ -131,17 +131,17 @@ static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, int msi, err; u32 msiqid; - *virt_irq_p = virt_irq_alloc(0, 0); + *irq_p = irq_alloc(0, 0); err = -ENOMEM; - if (!*virt_irq_p) + if (!*irq_p) goto out_err; - set_irq_chip_and_handler_name(*virt_irq_p, &msi_irq, + set_irq_chip_and_handler_name(*irq_p, &msi_irq, handle_simple_irq, "MSI"); err = alloc_msi(pbm); if (unlikely(err < 0)) - goto out_virt_irq_free; + goto out_irq_free; msi = err; @@ -152,7 +152,7 @@ static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, if (err) goto out_msi_free; - pbm->msi_irq_table[msi - pbm->msi_first] = *virt_irq_p; + pbm->msi_irq_table[msi - pbm->msi_first] = *irq_p; if (entry->msi_attrib.is_64) { msg.address_hi = pbm->msi64_start >> 32; @@ -163,24 +163,24 @@ static int sparc64_setup_msi_irq(unsigned int *virt_irq_p, } msg.data = msi; - set_irq_msi(*virt_irq_p, entry); - write_msi_msg(*virt_irq_p, &msg); + set_irq_msi(*irq_p, entry); + write_msi_msg(*irq_p, &msg); return 0; out_msi_free: free_msi(pbm, msi); -out_virt_irq_free: - set_irq_chip(*virt_irq_p, NULL); - virt_irq_free(*virt_irq_p); - *virt_irq_p = 0; +out_irq_free: + set_irq_chip(*irq_p, NULL); + irq_free(*irq_p); + *irq_p = 0; out_err: return err; } -static void sparc64_teardown_msi_irq(unsigned int virt_irq, +static void sparc64_teardown_msi_irq(unsigned int irq, struct pci_dev *pdev) { struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; @@ -189,12 +189,12 @@ static void sparc64_teardown_msi_irq(unsigned int virt_irq, int i, err; for (i = 0; i < pbm->msi_num; i++) { - if (pbm->msi_irq_table[i] == virt_irq) + if (pbm->msi_irq_table[i] == irq) break; } if (i >= pbm->msi_num) { printk(KERN_ERR "%s: teardown: No MSI for irq %u\n", - pbm->name, virt_irq); + pbm->name, irq); return; } @@ -205,14 +205,14 @@ static void sparc64_teardown_msi_irq(unsigned int virt_irq, if (err) { printk(KERN_ERR "%s: teardown: ops->teardown() on MSI %u, " "irq %u, gives error %d\n", - pbm->name, msi_num, virt_irq, err); + pbm->name, msi_num, irq, err); return; } free_msi(pbm, msi_num); - set_irq_chip(virt_irq, NULL); - virt_irq_free(virt_irq); + set_irq_chip(irq, NULL); + irq_free(irq); } static int msi_bitmap_alloc(struct pci_pbm_info *pbm) diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c index 22eab7cf3b1..56ee745064d 100644 --- a/arch/sparc/kernel/pci_psycho.c +++ b/arch/sparc/kernel/pci_psycho.c @@ -503,8 +503,7 @@ static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) #define PSYCHO_CONFIGSPACE 0x001000000UL -static int __devinit psycho_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit psycho_probe(struct platform_device *op) { const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; @@ -601,7 +600,7 @@ static struct of_device_id __initdata psycho_match[] = { {}, }; -static struct of_platform_driver psycho_driver = { +static struct platform_driver psycho_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -612,7 +611,7 @@ static struct of_platform_driver psycho_driver = { static int __init psycho_init(void) { - return of_register_platform_driver(&psycho_driver); + return platform_driver_register(&psycho_driver); } subsys_initcall(psycho_init); diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 5c3f5ec4cab..2857073342d 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -452,8 +452,7 @@ static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, sabre_scan_bus(pbm, &op->dev); } -static int __devinit sabre_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit sabre_probe(struct platform_device *op) { const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; @@ -464,7 +463,7 @@ static int __devinit sabre_probe(struct platform_device *op, const u32 *vdma; u64 clear_irq; - hummingbird_p = (match->data != NULL); + hummingbird_p = op->dev.of_match && (op->dev.of_match->data != NULL); if (!hummingbird_p) { struct device_node *cpu_dp; @@ -595,7 +594,7 @@ static struct of_device_id __initdata sabre_match[] = { {}, }; -static struct of_platform_driver sabre_driver = { +static struct platform_driver sabre_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -606,7 +605,7 @@ static struct of_platform_driver sabre_driver = { static int __init sabre_init(void) { - return of_register_platform_driver(&sabre_driver); + return platform_driver_register(&sabre_driver); } subsys_initcall(sabre_init); diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index 445a47a2fb3..1d41af73a92 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1313,7 +1313,7 @@ static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm, const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; const char *chipset_name; - int is_pbm_a, err; + int err; switch (chip_type) { case PBM_CHIP_TYPE_TOMATILLO: @@ -1343,8 +1343,6 @@ static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm, */ regs = of_get_property(dp, "reg", NULL); - is_pbm_a = ((regs[0].phys_addr & 0x00700000) == 0x00600000); - pbm->next = pci_pbm_root; pci_pbm_root = pbm; @@ -1460,10 +1458,11 @@ out_err: return err; } -static int __devinit schizo_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit schizo_probe(struct platform_device *op) { - return __schizo_init(op, (unsigned long) match->data); + if (!op->dev.of_match) + return -EINVAL; + return __schizo_init(op, (unsigned long) op->dev.of_match->data); } /* The ordering of this table is very important. Some Tomatillo @@ -1490,7 +1489,7 @@ static struct of_device_id __initdata schizo_match[] = { {}, }; -static struct of_platform_driver schizo_driver = { +static struct platform_driver schizo_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -1501,7 +1500,7 @@ static struct of_platform_driver schizo_driver = { static int __init schizo_init(void) { - return of_register_platform_driver(&schizo_driver); + return platform_driver_register(&schizo_driver); } subsys_initcall(schizo_init); diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index 743344aa6d8..6cf53468178 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -580,7 +580,7 @@ static int __devinit pci_sun4v_iommu_init(struct pci_pbm_info *pbm) { static const u32 vdma_default[] = { 0x80000000, 0x80000000 }; struct iommu *iommu = pbm->iommu; - unsigned long num_tsb_entries, sz, tsbsize; + unsigned long num_tsb_entries, sz; u32 dma_mask, dma_offset; const u32 *vdma; @@ -596,7 +596,6 @@ static int __devinit pci_sun4v_iommu_init(struct pci_pbm_info *pbm) dma_mask = (roundup_pow_of_two(vdma[1]) - 1UL); num_tsb_entries = vdma[1] / IO_PAGE_SIZE; - tsbsize = num_tsb_entries * sizeof(iopte_t); dma_offset = vdma[0]; @@ -844,9 +843,9 @@ static int pci_sun4v_msiq_build_irq(struct pci_pbm_info *pbm, unsigned long msiqid, unsigned long devino) { - unsigned int virt_irq = sun4v_build_irq(pbm->devhandle, devino); + unsigned int irq = sun4v_build_irq(pbm->devhandle, devino); - if (!virt_irq) + if (!irq) return -ENOMEM; if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE)) @@ -854,7 +853,7 @@ static int pci_sun4v_msiq_build_irq(struct pci_pbm_info *pbm, if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID)) return -EINVAL; - return virt_irq; + return irq; } static const struct sparc64_msiq_ops pci_sun4v_msiq_ops = { @@ -918,8 +917,7 @@ static int __devinit pci_sun4v_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit pci_sun4v_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit pci_sun4v_probe(struct platform_device *op) { const struct linux_prom64_registers *regs; static int hvapi_negotiated = 0; @@ -1008,7 +1006,7 @@ static struct of_device_id __initdata pci_sun4v_match[] = { {}, }; -static struct of_platform_driver pci_sun4v_driver = { +static struct platform_driver pci_sun4v_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -1019,7 +1017,7 @@ static struct of_platform_driver pci_sun4v_driver = { static int __init pci_sun4v_init(void) { - return of_register_platform_driver(&pci_sun4v_driver); + return platform_driver_register(&pci_sun4v_driver); } subsys_initcall(pci_sun4v_init); diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index aeaa09a3c65..2cdc131b50a 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -700,10 +700,8 @@ static void pcic_clear_clock_irq(void) static irqreturn_t pcic_timer_handler (int irq, void *h) { - write_seqlock(&xtime_lock); /* Dummy, to show that we remember */ pcic_clear_clock_irq(); - do_timer(1); - write_sequnlock(&xtime_lock); + xtime_update(1); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); #endif diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c index b87873c0e8e..8ac23e66008 100644 --- a/arch/sparc/kernel/pcr.c +++ b/arch/sparc/kernel/pcr.c @@ -81,7 +81,7 @@ static void n2_pcr_write(u64 val) unsigned long ret; ret = sun4v_niagara2_setperf(HV_N2_PERF_SPARC_CTL, val); - if (val != HV_EOK) + if (ret != HV_EOK) write_pcr(val); } @@ -167,5 +167,3 @@ out_unregister: unregister_perf_hsvc(); return err; } - -arch_initcall(pcr_arch_init); diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 0d6deb55a2a..760578687e7 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1307,20 +1307,23 @@ static bool __init supported_pmu(void) return false; } -void __init init_hw_perf_events(void) +int __init init_hw_perf_events(void) { pr_info("Performance events: "); if (!supported_pmu()) { pr_cont("No support for PMU type '%s'\n", sparc_pmu_type); - return; + return 0; } pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type); - perf_pmu_register(&pmu); + perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW); register_die_notifier(&perf_event_nmi_notifier); + + return 0; } +early_initcall(init_hw_perf_events); void perf_callchain_kernel(struct perf_callchain_entry *entry, struct pt_regs *regs) diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 94536a85f16..93d7b4465f8 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -51,8 +51,7 @@ static void pmc_swift_idle(void) #endif } -static int __devinit pmc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit pmc_probe(struct platform_device *op) { regs = of_ioremap(&op->resource[0], 0, resource_size(&op->resource[0]), PMC_OBPNAME); @@ -78,7 +77,7 @@ static struct of_device_id __initdata pmc_match[] = { }; MODULE_DEVICE_TABLE(of, pmc_match); -static struct of_platform_driver pmc_driver = { +static struct platform_driver pmc_driver = { .driver = { .name = "pmc", .owner = THIS_MODULE, @@ -89,7 +88,7 @@ static struct of_platform_driver pmc_driver = { static int __init pmc_init(void) { - return of_register_platform_driver(&pmc_driver); + return platform_driver_register(&pmc_driver); } /* This driver is not critical to the boot process diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c index 2c59f4d387d..cd725fe238b 100644 --- a/arch/sparc/kernel/power.c +++ b/arch/sparc/kernel/power.c @@ -33,7 +33,7 @@ static int __devinit has_button_interrupt(unsigned int irq, struct device_node * return 1; } -static int __devinit power_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit power_probe(struct platform_device *op) { struct resource *res = &op->resource[0]; unsigned int irq = op->archdata.irqs[0]; @@ -59,7 +59,7 @@ static struct of_device_id __initdata power_match[] = { {}, }; -static struct of_platform_driver power_driver = { +static struct platform_driver power_driver = { .probe = power_probe, .driver = { .name = "power", @@ -70,7 +70,7 @@ static struct of_platform_driver power_driver = { static int __init power_init(void) { - return of_register_platform_driver(&power_driver); + return platform_driver_register(&power_driver); } device_initcall(power_init); diff --git a/arch/sparc/kernel/prom_32.c b/arch/sparc/kernel/prom_32.c index 0a37e8cfd16..05fb2533058 100644 --- a/arch/sparc/kernel/prom_32.c +++ b/arch/sparc/kernel/prom_32.c @@ -136,18 +136,29 @@ static void __init ebus_path_component(struct device_node *dp, char *tmp_buf) /* "name:vendor:device@irq,addrlo" */ static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf) { - struct amba_prom_registers *regs; unsigned int *intr; - unsigned int *device, *vendor; + struct amba_prom_registers *regs; + unsigned int *intr, *device, *vendor, reg0; struct property *prop; + int interrupt = 0; + /* In order to get a unique ID in the device tree (multiple AMBA devices + * may have the same name) the node number is printed + */ prop = of_find_property(dp, "reg", NULL); - if (!prop) - return; - regs = prop->value; + if (!prop) { + reg0 = (unsigned int)dp->phandle; + } else { + regs = prop->value; + reg0 = regs->phys_addr; + } + + /* Not all cores have Interrupt */ prop = of_find_property(dp, "interrupts", NULL); if (!prop) - return; - intr = prop->value; + intr = &interrupt; /* IRQ0 does not exist */ + else + intr = prop->value; + prop = of_find_property(dp, "vendor", NULL); if (!prop) return; @@ -159,7 +170,7 @@ static void __init ambapp_path_component(struct device_node *dp, char *tmp_buf) sprintf(tmp_buf, "%s:%d:%d@%x,%x", dp->name, *vendor, *device, - *intr, regs->phys_addr); + *intr, reg0); } static void __init __build_path_component(struct device_node *dp, char *tmp_buf) diff --git a/arch/sparc/kernel/prom_irqtrans.c b/arch/sparc/kernel/prom_irqtrans.c index ce651147fab..570b98f6e89 100644 --- a/arch/sparc/kernel/prom_irqtrans.c +++ b/arch/sparc/kernel/prom_irqtrans.c @@ -227,7 +227,7 @@ static unsigned int sabre_irq_build(struct device_node *dp, unsigned long imap, iclr; unsigned long imap_off, iclr_off; int inofixup = 0; - int virt_irq; + int irq; ino &= 0x3f; if (ino < SABRE_ONBOARD_IRQ_BASE) { @@ -247,7 +247,7 @@ static unsigned int sabre_irq_build(struct device_node *dp, if ((ino & 0x20) == 0) inofixup = ino & 0x03; - virt_irq = build_irq(inofixup, iclr, imap); + irq = build_irq(inofixup, iclr, imap); /* If the parent device is a PCI<->PCI bridge other than * APB, we have to install a pre-handler to ensure that @@ -256,13 +256,13 @@ static unsigned int sabre_irq_build(struct device_node *dp, */ regs = of_get_property(dp, "reg", NULL); if (regs && sabre_device_needs_wsync(dp)) { - irq_install_pre_handler(virt_irq, + irq_install_pre_handler(irq, sabre_wsync_handler, (void *) (long) regs->phys_hi, (void *) irq_data); } - return virt_irq; + return irq; } static void __init sabre_irq_trans_init(struct device_node *dp) @@ -382,7 +382,7 @@ static unsigned int schizo_irq_build(struct device_node *dp, unsigned long pbm_regs = irq_data->pbm_regs; unsigned long imap, iclr; int ign_fixup; - int virt_irq; + int irq; int is_tomatillo; ino &= 0x3f; @@ -409,17 +409,17 @@ static unsigned int schizo_irq_build(struct device_node *dp, ign_fixup = (1 << 6); } - virt_irq = build_irq(ign_fixup, iclr, imap); + irq = build_irq(ign_fixup, iclr, imap); if (is_tomatillo) { - irq_install_pre_handler(virt_irq, + irq_install_pre_handler(irq, tomatillo_wsync_handler, ((irq_data->chip_version <= 4) ? (void *) 1 : (void *) 0), (void *) irq_data->sync_reg); } - return virt_irq; + return irq; } static void __init __schizo_irq_trans_init(struct device_node *dp, diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 9ccc812bc09..96ee50a8066 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -1086,6 +1086,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) asmlinkage void syscall_trace_leave(struct pt_regs *regs) { +#ifdef CONFIG_AUDITSYSCALL if (unlikely(current->audit_context)) { unsigned long tstate = regs->tstate; int result = AUDITSC_SUCCESS; @@ -1095,7 +1096,7 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs) audit_syscall_exit(result, regs->u_regs[UREG_I0]); } - +#endif if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) trace_sys_exit(regs, regs->u_regs[UREG_G1]); diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index b22ce610040..7b8b76c9557 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -184,8 +184,6 @@ static void __init boot_flags_init(char *commands) */ extern void sun4c_probe_vac(void); -extern char cputypval; -extern unsigned long start, end; extern unsigned short root_flags; extern unsigned short root_dev; @@ -210,7 +208,7 @@ void __init setup_arch(char **cmdline_p) int i; unsigned long highest_paddr; - sparc_ttable = (struct tt_entry *) &start; + sparc_ttable = (struct tt_entry *) &trapbase; /* Initialize PROM console and command line. */ *cmdline_p = prom_getbootargs(); @@ -219,21 +217,21 @@ void __init setup_arch(char **cmdline_p) /* Set sparc_cpu_model */ sparc_cpu_model = sun_unknown; - if (!strcmp(&cputypval,"sun4 ")) + if (!strcmp(&cputypval[0], "sun4 ")) sparc_cpu_model = sun4; - if (!strcmp(&cputypval,"sun4c")) + if (!strcmp(&cputypval[0], "sun4c")) sparc_cpu_model = sun4c; - if (!strcmp(&cputypval,"sun4m")) + if (!strcmp(&cputypval[0], "sun4m")) sparc_cpu_model = sun4m; - if (!strcmp(&cputypval,"sun4s")) + if (!strcmp(&cputypval[0], "sun4s")) sparc_cpu_model = sun4m; /* CP-1200 with PROM 2.30 -E */ - if (!strcmp(&cputypval,"sun4d")) + if (!strcmp(&cputypval[0], "sun4d")) sparc_cpu_model = sun4d; - if (!strcmp(&cputypval,"sun4e")) + if (!strcmp(&cputypval[0], "sun4e")) sparc_cpu_model = sun4e; - if (!strcmp(&cputypval,"sun4u")) + if (!strcmp(&cputypval[0], "sun4u")) sparc_cpu_model = sun4u; - if (!strncmp(&cputypval, "leon" , 4)) + if (!strncmp(&cputypval[0], "leon" , 4)) sparc_cpu_model = sparc_leon; printk("ARCH: "); @@ -336,7 +334,7 @@ static int show_cpuinfo(struct seq_file *m, void *__unused) prom_rev, romvec->pv_printrev >> 16, romvec->pv_printrev & 0xffff, - &cputypval, + &cputypval[0], ncpus_probed, num_online_cpus() #ifndef CONFIG_SMP diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index b6a2b8f4704..3e94a8c2323 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -49,6 +49,7 @@ #include <asm/mdesc.h> #include <asm/ldc.h> #include <asm/hypervisor.h> +#include <asm/pcr.h> #include "cpumap.h" @@ -188,7 +189,7 @@ static inline long get_delta (long *rt, long *master) void smp_synchronize_tick_client(void) { long i, delta, adj, adjust_latency = 0, done = 0; - unsigned long flags, rt, master_time_stamp, bound; + unsigned long flags, rt, master_time_stamp; #if DEBUG_TICK_SYNC struct { long rt; /* roundtrip time */ @@ -207,10 +208,8 @@ void smp_synchronize_tick_client(void) { for (i = 0; i < NUM_ROUNDS; i++) { delta = get_delta(&rt, &master_time_stamp); - if (delta == 0) { + if (delta == 0) done = 1; /* let's lock on to this... */ - bound = rt; - } if (!done) { if (i > 0) { @@ -932,13 +931,12 @@ void smp_flush_dcache_page_impl(struct page *page, int cpu) void flush_dcache_page_all(struct mm_struct *mm, struct page *page) { void *pg_addr; - int this_cpu; u64 data0; if (tlb_type == hypervisor) return; - this_cpu = get_cpu(); + preempt_disable(); #ifdef CONFIG_DEBUG_DCFLUSH atomic_inc(&dcpage_flushes); @@ -963,7 +961,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page) } __local_flush_dcache_page(page); - put_cpu(); + preempt_enable(); } void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs) @@ -1358,6 +1356,7 @@ void __cpu_die(unsigned int cpu) void __init smp_cpus_done(unsigned int max_cpus) { + pcr_arch_init(); } void smp_send_reschedule(int cpu) diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c index a4446c0fb7a..82281a566bb 100644 --- a/arch/sparc/kernel/starfire.c +++ b/arch/sparc/kernel/starfire.c @@ -24,7 +24,7 @@ int this_is_starfire = 0; void check_if_starfire(void) { phandle ssnode = prom_finddevice("/ssp-serial"); - if (ssnode != 0 && ssnode != -1) + if (ssnode != 0 && (s32)ssnode != -1) this_is_starfire = 1; } diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c index 892fb884910..90eea38ad66 100644 --- a/arch/sparc/kernel/sun4c_irq.c +++ b/arch/sparc/kernel/sun4c_irq.c @@ -1,5 +1,5 @@ -/* sun4c_irq.c - * arch/sparc/kernel/sun4c_irq.c: +/* + * sun4c irq support * * djhr: Hacked out of irq.c into a CPU dependent version. * @@ -9,31 +9,41 @@ * Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk) */ -#include <linux/errno.h> -#include <linux/linkage.h> -#include <linux/kernel_stat.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/ptrace.h> -#include <linux/interrupt.h> #include <linux/init.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include "irq.h" -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/psr.h> -#include <asm/vaddrs.h> -#include <asm/timer.h> -#include <asm/openprom.h> #include <asm/oplib.h> -#include <asm/traps.h> +#include <asm/timer.h> #include <asm/irq.h> #include <asm/io.h> -#include <asm/idprom.h> -#include <asm/machines.h> + +#include "irq.h" + +/* Sun4c interrupts are typically laid out as follows: + * + * 1 - Software interrupt, SBUS level 1 + * 2 - SBUS level 2 + * 3 - ESP SCSI, SBUS level 3 + * 4 - Software interrupt + * 5 - Lance ethernet, SBUS level 4 + * 6 - Software interrupt + * 7 - Graphics card, SBUS level 5 + * 8 - SBUS level 6 + * 9 - SBUS level 7 + * 10 - Counter timer + * 11 - Floppy + * 12 - Zilog uart + * 13 - CS4231 audio + * 14 - Profiling timer + * 15 - NMI + * + * The interrupt enable bits in the interrupt mask register are + * really only used to enable/disable the timer interrupts, and + * for signalling software interrupts. There is also a master + * interrupt enable bit in this register. + * + * Interrupts are enabled by setting the SUN4C_INT_* bits, they + * are disabled by clearing those bits. + */ /* * Bit field defines for the interrupt registers on various @@ -49,26 +59,21 @@ #define SUN4C_INT_E4 0x04 /* Enable level 4 IRQ. */ #define SUN4C_INT_E1 0x02 /* Enable level 1 IRQ. */ -/* Pointer to the interrupt enable byte - * - * Dave Redman (djhr@tadpole.co.uk) - * What you may not be aware of is that entry.S requires this variable. - * - * --- linux_trap_nmi_sun4c -- - * - * so don't go making it static, like I tried. sigh. +/* + * Pointer to the interrupt enable byte + * Used by entry.S */ -unsigned char __iomem *interrupt_enable = NULL; +unsigned char __iomem *interrupt_enable; static void sun4c_disable_irq(unsigned int irq_nr) { unsigned long flags; unsigned char current_mask, new_mask; - + local_irq_save(flags); irq_nr &= (NR_IRQS - 1); current_mask = sbus_readb(interrupt_enable); - switch(irq_nr) { + switch (irq_nr) { case 1: new_mask = ((current_mask) & (~(SUN4C_INT_E1))); break; @@ -93,11 +98,11 @@ static void sun4c_enable_irq(unsigned int irq_nr) { unsigned long flags; unsigned char current_mask, new_mask; - + local_irq_save(flags); irq_nr &= (NR_IRQS - 1); current_mask = sbus_readb(interrupt_enable); - switch(irq_nr) { + switch (irq_nr) { case 1: new_mask = ((current_mask) | SUN4C_INT_E1); break; @@ -180,12 +185,14 @@ static void __init sun4c_init_timers(irq_handler_t counter_fn) prom_printf("sun4c_init_timers: request_irq() fails with %d\n", err); prom_halt(); } - + sun4c_disable_irq(irq[1].pri); } #ifdef CONFIG_SMP -static void sun4c_nop(void) {} +static void sun4c_nop(void) +{ +} #endif void __init sun4c_init_IRQ(void) @@ -214,7 +221,9 @@ void __init sun4c_init_IRQ(void) BTFIXUPSET_CALL(disable_pil_irq, sun4c_disable_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(clear_clock_irq, sun4c_clear_clock_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(load_profile_irq, sun4c_load_profile_irq, BTFIXUPCALL_NOP); - sparc_init_timers = sun4c_init_timers; + + sparc_irq_config.init_timers = sun4c_init_timers; + #ifdef CONFIG_SMP BTFIXUPSET_CALL(set_cpu_int, sun4c_nop, BTFIXUPCALL_NOP); BTFIXUPSET_CALL(clear_cpu_int, sun4c_nop, BTFIXUPCALL_NOP); diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index e11b4612dab..77b4a899271 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -1,50 +1,42 @@ /* - * arch/sparc/kernel/sun4d_irq.c: - * SS1000/SC2000 interrupt handling. + * SS1000/SC2000 interrupt handling. * * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) * Heavily based on arch/sparc/kernel/irq.c. */ -#include <linux/errno.h> -#include <linux/linkage.h> #include <linux/kernel_stat.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/ptrace.h> -#include <linux/interrupt.h> -#include <linux/slab.h> -#include <linux/random.h> -#include <linux/init.h> -#include <linux/smp.h> -#include <linux/spinlock.h> #include <linux/seq_file.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/psr.h> -#include <asm/smp.h> -#include <asm/vaddrs.h> + #include <asm/timer.h> -#include <asm/openprom.h> -#include <asm/oplib.h> #include <asm/traps.h> #include <asm/irq.h> #include <asm/io.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> #include <asm/sbi.h> #include <asm/cacheflush.h> -#include <asm/irq_regs.h> #include "kernel.h" #include "irq.h" -/* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */ -/* #define DISTRIBUTE_IRQS */ +/* Sun4d interrupts fall roughly into two categories. SBUS and + * cpu local. CPU local interrupts cover the timer interrupts + * and whatnot, and we encode those as normal PILs between + * 0 and 15. + * + * SBUS interrupts are encoded integers including the board number + * (plus one), the SBUS level, and the SBUS slot number. Sun4D + * IRQ dispatch is done by: + * + * 1) Reading the BW local interrupt table in order to get the bus + * interrupt mask. + * + * This table is indexed by SBUS interrupt level which can be + * derived from the PIL we got interrupted on. + * + * 2) For each bus showing interrupt pending from #1, read the + * SBI interrupt state register. This will indicate which slots + * have interrupts pending for that SBUS interrupt level. + */ struct sun4d_timer_regs { u32 l10_timer_limit; @@ -59,11 +51,9 @@ static struct sun4d_timer_regs __iomem *sun4d_timers; #define TIMER_IRQ 10 #define MAX_STATIC_ALLOC 4 -extern int static_irq_count; static unsigned char sbus_tid[32]; static struct irqaction *irq_action[NR_IRQS]; -extern spinlock_t irq_action_lock; static struct sbus_action { struct irqaction *action; @@ -71,11 +61,33 @@ static struct sbus_action { } *sbus_actions; static int pil_to_sbus[] = { - 0, 0, 1, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 0, + 0, + 0, + 1, + 2, + 0, + 3, + 0, + 4, + 0, + 5, + 0, + 6, + 0, + 7, + 0, + 0, }; static int sbus_to_pil[] = { - 0, 2, 3, 5, 7, 9, 11, 13, + 0, + 2, + 3, + 5, + 7, + 9, + 11, + 13, }; static int nsbi; @@ -86,7 +98,7 @@ DEFINE_SPINLOCK(sun4d_imsk_lock); int show_sun4d_interrupts(struct seq_file *p, void *v) { int i = *(loff_t *) v, j = 0, k = 0, sbusl; - struct irqaction * action; + struct irqaction *action; unsigned long flags; #ifdef CONFIG_SMP int x; @@ -96,13 +108,14 @@ int show_sun4d_interrupts(struct seq_file *p, void *v) if (i < NR_IRQS) { sbusl = pil_to_sbus[i]; if (!sbusl) { - action = *(i + irq_action); - if (!action) - goto out_unlock; + action = *(i + irq_action); + if (!action) + goto out_unlock; } else { for (j = 0; j < nsbi; j++) { for (k = 0; k < 4; k++) - if ((action = sbus_actions [(j << 5) + (sbusl << 2) + k].action)) + action = sbus_actions[(j << 5) + (sbusl << 2) + k].action; + if (action) goto found_it; } goto out_unlock; @@ -125,15 +138,17 @@ found_it: seq_printf(p, "%3d: ", i); (action->flags & IRQF_DISABLED) ? " +" : "", action->name); } - if (!sbusl) break; + if (!sbusl) + break; k++; - if (k < 4) - action = sbus_actions [(j << 5) + (sbusl << 2) + k].action; - else { + if (k < 4) { + action = sbus_actions[(j << 5) + (sbusl << 2) + k].action; + } else { j++; - if (j == nsbi) break; + if (j == nsbi) + break; k = 0; - action = sbus_actions [(j << 5) + (sbusl << 2)].action; + action = sbus_actions[(j << 5) + (sbusl << 2)].action; } } seq_putc(p, '\n'); @@ -147,7 +162,7 @@ void sun4d_free_irq(unsigned int irq, void *dev_id) { struct irqaction *action, **actionp; struct irqaction *tmp = NULL; - unsigned long flags; + unsigned long flags; spin_lock_irqsave(&irq_action_lock, flags); if (irq < 15) @@ -156,7 +171,7 @@ void sun4d_free_irq(unsigned int irq, void *dev_id) actionp = &(sbus_actions[irq - (1 << 5)].action); action = *actionp; if (!action) { - printk("Trying to free free IRQ%d\n",irq); + printk(KERN_ERR "Trying to free free IRQ%d\n", irq); goto out_unlock; } if (dev_id) { @@ -166,23 +181,25 @@ void sun4d_free_irq(unsigned int irq, void *dev_id) tmp = action; } if (!action) { - printk("Trying to free free shared IRQ%d\n",irq); + printk(KERN_ERR "Trying to free free shared IRQ%d\n", + irq); goto out_unlock; } } else if (action->flags & IRQF_SHARED) { - printk("Trying to free shared IRQ%d with NULL device ID\n", irq); + printk(KERN_ERR "Trying to free shared IRQ%d with NULL device ID\n", + irq); goto out_unlock; } - if (action->flags & SA_STATIC_ALLOC) - { - /* This interrupt is marked as specially allocated + if (action->flags & SA_STATIC_ALLOC) { + /* + * This interrupt is marked as specially allocated * so it is a bad idea to free it. */ - printk("Attempt to free statically allocated IRQ%d (%s)\n", + printk(KERN_ERR "Attempt to free statically allocated IRQ%d (%s)\n", irq, action->name); goto out_unlock; } - + if (tmp) tmp->next = action->next; else @@ -203,30 +220,28 @@ out_unlock: spin_unlock_irqrestore(&irq_action_lock, flags); } -extern void unexpected_irq(int, void *, struct pt_regs *); - -void sun4d_handler_irq(int irq, struct pt_regs * regs) +void sun4d_handler_irq(int pil, struct pt_regs *regs) { struct pt_regs *old_regs; - struct irqaction * action; + struct irqaction *action; int cpu = smp_processor_id(); /* SBUS IRQ level (1 - 7) */ - int sbusl = pil_to_sbus[irq]; - + int sbusl = pil_to_sbus[pil]; + /* FIXME: Is this necessary?? */ cc_get_ipen(); - - cc_set_iclr(1 << irq); - + + cc_set_iclr(1 << pil); + old_regs = set_irq_regs(regs); irq_enter(); - kstat_cpu(cpu).irqs[irq]++; + kstat_cpu(cpu).irqs[pil]++; if (!sbusl) { - action = *(irq + irq_action); + action = *(pil + irq_action); if (!action) - unexpected_irq(irq, NULL, regs); + unexpected_irq(pil, NULL, regs); do { - action->handler(irq, action->dev_id); + action->handler(pil, action->dev_id); action = action->next; } while (action); } else { @@ -235,9 +250,9 @@ void sun4d_handler_irq(int irq, struct pt_regs * regs) struct sbus_action *actionp; unsigned mask, slot; int sbil = (sbusl << 2); - + bw_clear_intr_mask(sbusl, bus_mask); - + /* Loop for each pending SBI */ for (sbino = 0; bus_mask; sbino++, bus_mask >>= 1) if (bus_mask & 1) { @@ -249,11 +264,11 @@ void sun4d_handler_irq(int irq, struct pt_regs * regs) if (mask & slot) { mask &= ~slot; action = actionp->action; - + if (!action) - unexpected_irq(irq, NULL, regs); + unexpected_irq(pil, NULL, regs); do { - action->handler(irq, action->dev_id); + action->handler(pil, action->dev_id); action = action->next; } while (action); release_sbi(SBI2DEVID(sbino), slot); @@ -266,13 +281,13 @@ void sun4d_handler_irq(int irq, struct pt_regs * regs) int sun4d_request_irq(unsigned int irq, irq_handler_t handler, - unsigned long irqflags, const char * devname, void *dev_id) + unsigned long irqflags, const char *devname, void *dev_id) { struct irqaction *action, *tmp = NULL, **actionp; unsigned long flags; int ret; - - if(irq > 14 && irq < (1 << 5)) { + + if (irq > 14 && irq < (1 << 5)) { ret = -EINVAL; goto out; } @@ -289,16 +304,18 @@ int sun4d_request_irq(unsigned int irq, else actionp = irq + irq_action; action = *actionp; - + if (action) { if ((action->flags & IRQF_SHARED) && (irqflags & IRQF_SHARED)) { - for (tmp = action; tmp->next; tmp = tmp->next); + for (tmp = action; tmp->next; tmp = tmp->next) + /* find last entry - tmp used below */; } else { ret = -EBUSY; goto out_unlock; } if ((action->flags & IRQF_DISABLED) ^ (irqflags & IRQF_DISABLED)) { - printk("Attempt to mix fast and slow interrupts on IRQ%d denied\n", irq); + printk(KERN_ERR "Attempt to mix fast and slow interrupts on IRQ%d denied\n", + irq); ret = -EBUSY; goto out_unlock; } @@ -312,14 +329,14 @@ int sun4d_request_irq(unsigned int irq, if (static_irq_count < MAX_STATIC_ALLOC) action = &static_irqaction[static_irq_count++]; else - printk("Request for IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", irq, devname); + printk(KERN_ERR "Request for IRQ%d (%s) SA_STATIC_ALLOC failed using kmalloc\n", + irq, devname); } - + if (action == NULL) - action = kmalloc(sizeof(struct irqaction), - GFP_ATOMIC); - - if (!action) { + action = kmalloc(sizeof(struct irqaction), GFP_ATOMIC); + + if (!action) { ret = -ENOMEM; goto out_unlock; } @@ -334,7 +351,7 @@ int sun4d_request_irq(unsigned int irq, tmp->next = action; else *actionp = action; - + __enable_irq(irq); ret = 0; @@ -348,7 +365,7 @@ static void sun4d_disable_irq(unsigned int irq) { int tid = sbus_tid[(irq >> 5) - 1]; unsigned long flags; - + if (irq < NR_IRQS) return; @@ -361,7 +378,7 @@ static void sun4d_enable_irq(unsigned int irq) { int tid = sbus_tid[(irq >> 5) - 1]; unsigned long flags; - + if (irq < NR_IRQS) return; @@ -389,44 +406,6 @@ void __init sun4d_distribute_irqs(void) { struct device_node *dp; -#ifdef DISTRIBUTE_IRQS - cpumask_t sbus_serving_map; - - sbus_serving_map = cpu_present_map; - for_each_node_by_name(dp, "sbi") { - int board = of_getintprop_default(dp, "board#", 0); - - if ((board * 2) == boot_cpu_id && cpu_isset(board * 2 + 1, cpu_present_map)) - sbus_tid[board] = (board * 2 + 1); - else if (cpu_isset(board * 2, cpu_present_map)) - sbus_tid[board] = (board * 2); - else if (cpu_isset(board * 2 + 1, cpu_present_map)) - sbus_tid[board] = (board * 2 + 1); - else - sbus_tid[board] = 0xff; - if (sbus_tid[board] != 0xff) - cpu_clear(sbus_tid[board], sbus_serving_map); - } - for_each_node_by_name(dp, "sbi") { - int board = of_getintprop_default(dp, "board#", 0); - if (sbus_tid[board] == 0xff) { - int i = 31; - - if (cpus_empty(sbus_serving_map)) - sbus_serving_map = cpu_present_map; - while (cpu_isset(i, sbus_serving_map)) - i--; - sbus_tid[board] = i; - cpu_clear(i, sbus_serving_map); - } - } - for_each_node_by_name(dp, "sbi") { - int devid = of_getintprop_default(dp, "device-id", 0); - int board = of_getintprop_default(dp, "board#", 0); - printk("sbus%d IRQs directed to CPU%d\n", board, sbus_tid[board]); - set_sbi_tid(devid, sbus_tid[board] << 3); - } -#else int cpuid = cpu_logical_map(1); if (cpuid == -1) @@ -437,11 +416,10 @@ void __init sun4d_distribute_irqs(void) sbus_tid[board] = cpuid; set_sbi_tid(devid, cpuid << 3); } - printk("All sbus IRQs directed to CPU%d\n", cpuid); -#endif + printk(KERN_ERR "All sbus IRQs directed to CPU%d\n", cpuid); } #endif - + static void sun4d_clear_clock_irq(void) { sbus_readl(&sun4d_timers->l10_timer_limit); @@ -462,14 +440,61 @@ static void __init sun4d_load_profile_irqs(void) } } +unsigned int sun4d_build_device_irq(struct platform_device *op, + unsigned int real_irq) +{ + static int pil_to_sbus[] = { + 0, 0, 1, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 0, + }; + struct device_node *dp = op->dev.of_node; + struct device_node *io_unit, *sbi = dp->parent; + const struct linux_prom_registers *regs; + int board, slot; + int sbusl; + + while (sbi) { + if (!strcmp(sbi->name, "sbi")) + break; + + sbi = sbi->parent; + } + if (!sbi) + goto err_out; + + regs = of_get_property(dp, "reg", NULL); + if (!regs) + goto err_out; + + slot = regs->which_io; + + /* + * If SBI's parent is not io-unit or the io-unit lacks + * a "board#" property, something is very wrong. + */ + if (!sbi->parent || strcmp(sbi->parent->name, "io-unit")) { + printk("%s: Error, parent is not io-unit.\n", sbi->full_name); + goto err_out; + } + io_unit = sbi->parent; + board = of_getintprop_default(io_unit, "board#", -1); + if (board == -1) { + printk("%s: Error, lacks board# property.\n", io_unit->full_name); + goto err_out; + } + + sbusl = pil_to_sbus[real_irq]; + if (sbusl) + return (((board + 1) << 5) + (sbusl << 2) + slot); + +err_out: + return real_irq; +} + static void __init sun4d_fixup_trap_table(void) { #ifdef CONFIG_SMP unsigned long flags; - extern unsigned long lvl14_save[4]; struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)]; - extern unsigned int real_irq_entry[], smp4d_ticker[]; - extern unsigned int patchme_maybe_smp_msg[]; /* Adjust so that we jump directly to smp4d_ticker */ lvl14_save[2] += smp4d_ticker - real_irq_entry; @@ -531,7 +556,8 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL); if (err) { - prom_printf("sun4d_init_timers: request_irq() failed with %d\n", err); + prom_printf("sun4d_init_timers: request_irq() failed with %d\n", + err); prom_halt(); } sun4d_load_profile_irqs(); @@ -550,7 +576,7 @@ void __init sun4d_init_sbi_irq(void) nsbi = 0; for_each_node_by_name(dp, "sbi") nsbi++; - sbus_actions = kzalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC); + sbus_actions = kzalloc(nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC); if (!sbus_actions) { prom_printf("SUN4D: Cannot allocate sbus_actions, halting.\n"); prom_halt(); @@ -566,7 +592,8 @@ void __init sun4d_init_sbi_irq(void) /* Get rid of pending irqs from PROM */ mask = acquire_sbi(devid, 0xffffffff); if (mask) { - printk ("Clearing pending IRQs %08x on SBI %d\n", mask, board); + printk(KERN_ERR "Clearing pending IRQs %08x on SBI %d\n", + mask, board); release_sbi(devid, mask); } } @@ -580,7 +607,10 @@ void __init sun4d_init_IRQ(void) BTFIXUPSET_CALL(disable_irq, sun4d_disable_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(load_profile_irq, sun4d_load_profile_irq, BTFIXUPCALL_NORM); - sparc_init_timers = sun4d_init_timers; + + sparc_irq_config.init_timers = sun4d_init_timers; + sparc_irq_config.build_device_irq = sun4d_build_device_irq; + #ifdef CONFIG_SMP BTFIXUPSET_CALL(set_cpu_int, sun4d_set_cpu_int, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(clear_cpu_int, sun4d_clear_ipi, BTFIXUPCALL_NOP); diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 482f2ab9269..475d50b96cd 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -1,4 +1,4 @@ -/* sun4d_smp.c: Sparc SS1000/SC2000 SMP support. +/* Sparc SS1000/SC2000 SMP support. * * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) * @@ -6,59 +6,23 @@ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ -#include <asm/head.h> - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/threads.h> -#include <linux/smp.h> #include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/mm.h> -#include <linux/swap.h> #include <linux/profile.h> #include <linux/delay.h> #include <linux/cpu.h> -#include <asm/ptrace.h> -#include <asm/atomic.h> -#include <asm/irq_regs.h> - -#include <asm/irq.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/oplib.h> #include <asm/sbi.h> +#include <asm/mmu.h> #include <asm/tlbflush.h> #include <asm/cacheflush.h> -#include <asm/cpudata.h> +#include "kernel.h" #include "irq.h" -#define IRQ_CROSS_CALL 15 -extern ctxd_t *srmmu_ctx_table_phys; +#define IRQ_CROSS_CALL 15 -static volatile int smp_processors_ready = 0; +static volatile int smp_processors_ready; static int smp_highest_cpu; -extern volatile unsigned long cpu_callin_map[NR_CPUS]; -extern cpuinfo_sparc cpu_data[NR_CPUS]; -extern unsigned char boot_cpu_id; -extern volatile int smp_process_available; - -extern cpumask_t smp_commenced_mask; - -extern int __smp4d_processor_id(void); - -/* #define SMP_DEBUG */ - -#ifdef SMP_DEBUG -#define SMP_PRINTK(x) printk x -#else -#define SMP_PRINTK(x) -#endif static inline unsigned long sun4d_swap(volatile unsigned long *ptr, unsigned long val) { @@ -69,8 +33,6 @@ static inline unsigned long sun4d_swap(volatile unsigned long *ptr, unsigned lon } static void smp_setup_percpu_timer(void); -extern void cpu_probe(void); -extern void sun4d_distribute_irqs(void); static unsigned char cpu_leds[32]; @@ -86,9 +48,8 @@ static inline void show_leds(int cpuid) void __cpuinit smp4d_callin(void) { int cpuid = hard_smp4d_processor_id(); - extern spinlock_t sun4d_imsk_lock; unsigned long flags; - + /* Show we are alive */ cpu_leds[cpuid] = 0x6; show_leds(cpuid); @@ -118,15 +79,15 @@ void __cpuinit smp4d_callin(void) sun4d_swap((unsigned long *)&cpu_callin_map[cpuid], 1); local_flush_cache_all(); local_flush_tlb_all(); - + cpu_probe(); - while((unsigned long)current_set[cpuid] < PAGE_OFFSET) + while ((unsigned long)current_set[cpuid] < PAGE_OFFSET) barrier(); - - while(current_set[cpuid]->cpu != cpuid) + + while (current_set[cpuid]->cpu != cpuid) barrier(); - + /* Fix idle thread fields. */ __asm__ __volatile__("ld [%0], %%g6\n\t" : : "r" (¤t_set[cpuid]) @@ -134,16 +95,16 @@ void __cpuinit smp4d_callin(void) cpu_leds[cpuid] = 0x9; show_leds(cpuid); - + /* Attach to the address space of init_task. */ atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; local_flush_cache_all(); local_flush_tlb_all(); - + local_irq_enable(); /* We don't allow PIL 14 yet */ - + while (!cpu_isset(cpuid, smp_commenced_mask)) barrier(); @@ -154,15 +115,9 @@ void __cpuinit smp4d_callin(void) } -extern void init_IRQ(void); -extern void cpu_panic(void); - /* * Cycle through the processors asking the PROM to start each one. */ - -extern struct linux_prom_registers smp_penguin_ctable; - void __init smp4d_boot_cpus(void) { if (boot_cpu_id) @@ -173,43 +128,42 @@ void __init smp4d_boot_cpus(void) int __cpuinit smp4d_boot_one_cpu(int i) { - extern unsigned long sun4d_cpu_startup; - unsigned long *entry = &sun4d_cpu_startup; - struct task_struct *p; - int timeout; - int cpu_node; + unsigned long *entry = &sun4d_cpu_startup; + struct task_struct *p; + int timeout; + int cpu_node; - cpu_find_by_instance(i, &cpu_node,NULL); - /* Cook up an idler for this guy. */ - p = fork_idle(i); - current_set[i] = task_thread_info(p); + cpu_find_by_instance(i, &cpu_node, NULL); + /* Cook up an idler for this guy. */ + p = fork_idle(i); + current_set[i] = task_thread_info(p); + + /* + * Initialize the contexts table + * Since the call to prom_startcpu() trashes the structure, + * we need to re-initialize it for each cpu + */ + smp_penguin_ctable.which_io = 0; + smp_penguin_ctable.phys_addr = (unsigned int) srmmu_ctx_table_phys; + smp_penguin_ctable.reg_size = 0; + + /* whirrr, whirrr, whirrrrrrrrr... */ + printk(KERN_INFO "Starting CPU %d at %p\n", i, entry); + local_flush_cache_all(); + prom_startcpu(cpu_node, + &smp_penguin_ctable, 0, (char *)entry); + + printk(KERN_INFO "prom_startcpu returned :)\n"); + + /* wheee... it's going... */ + for (timeout = 0; timeout < 10000; timeout++) { + if (cpu_callin_map[i]) + break; + udelay(200); + } - /* - * Initialize the contexts table - * Since the call to prom_startcpu() trashes the structure, - * we need to re-initialize it for each cpu - */ - smp_penguin_ctable.which_io = 0; - smp_penguin_ctable.phys_addr = (unsigned int) srmmu_ctx_table_phys; - smp_penguin_ctable.reg_size = 0; - - /* whirrr, whirrr, whirrrrrrrrr... */ - SMP_PRINTK(("Starting CPU %d at %p\n", i, entry)); - local_flush_cache_all(); - prom_startcpu(cpu_node, - &smp_penguin_ctable, 0, (char *)entry); - - SMP_PRINTK(("prom_startcpu returned :)\n")); - - /* wheee... it's going... */ - for(timeout = 0; timeout < 10000; timeout++) { - if(cpu_callin_map[i]) - break; - udelay(200); - } - if (!(cpu_callin_map[i])) { - printk("Processor %d is stuck.\n", i); + printk(KERN_ERR "Processor %d is stuck.\n", i); return -ENODEV; } @@ -255,14 +209,17 @@ static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { - if(smp_processors_ready) { + if (smp_processors_ready) { register int high = smp_highest_cpu; unsigned long flags; spin_lock_irqsave(&cross_call_lock, flags); { - /* If you make changes here, make sure gcc generates proper code... */ + /* + * If you make changes here, make sure + * gcc generates proper code... + */ register smpfunc_t f asm("i0") = func; register unsigned long a1 asm("i1") = arg1; register unsigned long a2 asm("i2") = arg2; @@ -284,7 +241,7 @@ static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, cpu_clear(smp_processor_id(), mask); cpus_and(mask, cpu_online_map, mask); - for(i = 0; i <= high; i++) { + for (i = 0; i <= high; i++) { if (cpu_isset(i, mask)) { ccall_info.processors_in[i] = 0; ccall_info.processors_out[i] = 0; @@ -300,17 +257,17 @@ static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, do { if (!cpu_isset(i, mask)) continue; - while(!ccall_info.processors_in[i]) + while (!ccall_info.processors_in[i]) barrier(); - } while(++i <= high); + } while (++i <= high); i = 0; do { if (!cpu_isset(i, mask)) continue; - while(!ccall_info.processors_out[i]) + while (!ccall_info.processors_out[i]) barrier(); - } while(++i <= high); + } while (++i <= high); } spin_unlock_irqrestore(&cross_call_lock, flags); @@ -336,7 +293,7 @@ void smp4d_percpu_timer_interrupt(struct pt_regs *regs) static char led_mask[] = { 0xe, 0xd, 0xb, 0x7, 0xb, 0xd }; old_regs = set_irq_regs(regs); - bw_get_prof_limit(cpu); + bw_get_prof_limit(cpu); bw_clear_intr_mask(0, 1); /* INTR_TABLE[0] & 1 is Profile IRQ */ cpu_tick[cpu]++; @@ -349,7 +306,7 @@ void smp4d_percpu_timer_interrupt(struct pt_regs *regs) profile_tick(CPU_PROFILING); - if(!--prof_counter(cpu)) { + if (!--prof_counter(cpu)) { int user = user_mode(regs); irq_enter(); @@ -361,8 +318,6 @@ void smp4d_percpu_timer_interrupt(struct pt_regs *regs) set_irq_regs(old_regs); } -extern unsigned int lvl14_resolution; - static void __cpuinit smp_setup_percpu_timer(void) { int cpu = hard_smp4d_processor_id(); @@ -374,16 +329,16 @@ static void __cpuinit smp_setup_percpu_timer(void) void __init smp4d_blackbox_id(unsigned *addr) { int rd = *addr & 0x3e000000; - + addr[0] = 0xc0800800 | rd; /* lda [%g0] ASI_M_VIKING_TMP1, reg */ - addr[1] = 0x01000000; /* nop */ - addr[2] = 0x01000000; /* nop */ + addr[1] = 0x01000000; /* nop */ + addr[2] = 0x01000000; /* nop */ } void __init smp4d_blackbox_current(unsigned *addr) { int rd = *addr & 0x3e000000; - + addr[0] = 0xc0800800 | rd; /* lda [%g0] ASI_M_VIKING_TMP1, reg */ addr[2] = 0x81282002 | rd | (rd >> 11); /* sll reg, 2, reg */ addr[4] = 0x01000000; /* nop */ @@ -392,17 +347,16 @@ void __init smp4d_blackbox_current(unsigned *addr) void __init sun4d_init_smp(void) { int i; - extern unsigned int t_nmi[], linux_trap_ipi15_sun4d[], linux_trap_ipi15_sun4m[]; /* Patch ipi15 trap table */ t_nmi[1] = t_nmi[1] + (linux_trap_ipi15_sun4d - linux_trap_ipi15_sun4m); - + /* And set btfixup... */ BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4d_blackbox_id); BTFIXUPSET_BLACKBOX(load_current, smp4d_blackbox_current); BTFIXUPSET_CALL(smp_cross_call, smp4d_cross_call, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4d_processor_id, BTFIXUPCALL_NORM); - + for (i = 0; i < NR_CPUS; i++) { ccall_info.processors_in[i] = 1; ccall_info.processors_out[i] = 1; diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index 7f3b97ff62c..69df6257a32 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -1,5 +1,5 @@ -/* sun4m_irq.c - * arch/sparc/kernel/sun4m_irq.c: +/* + * sun4m irq support * * djhr: Hacked out of irq.c into a CPU dependent version. * @@ -9,101 +9,44 @@ * Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk) */ -#include <linux/errno.h> -#include <linux/linkage.h> -#include <linux/kernel_stat.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/ptrace.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/of.h> -#include <linux/of_device.h> - -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/system.h> -#include <asm/psr.h> -#include <asm/vaddrs.h> #include <asm/timer.h> -#include <asm/openprom.h> -#include <asm/oplib.h> #include <asm/traps.h> #include <asm/pgalloc.h> #include <asm/pgtable.h> -#include <asm/smp.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/cacheflush.h> #include "irq.h" +#include "kernel.h" -struct sun4m_irq_percpu { - u32 pending; - u32 clear; - u32 set; -}; - -struct sun4m_irq_global { - u32 pending; - u32 mask; - u32 mask_clear; - u32 mask_set; - u32 interrupt_target; -}; - -/* Code in entry.S needs to get at these register mappings. */ -struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; -struct sun4m_irq_global __iomem *sun4m_irq_global; - -/* Dave Redman (djhr@tadpole.co.uk) - * The sun4m interrupt registers. - */ -#define SUN4M_INT_ENABLE 0x80000000 -#define SUN4M_INT_E14 0x00000080 -#define SUN4M_INT_E10 0x00080000 - -#define SUN4M_HARD_INT(x) (0x000000001 << (x)) -#define SUN4M_SOFT_INT(x) (0x000010000 << (x)) - -#define SUN4M_INT_MASKALL 0x80000000 /* mask all interrupts */ -#define SUN4M_INT_MODULE_ERR 0x40000000 /* module error */ -#define SUN4M_INT_M2S_WRITE_ERR 0x20000000 /* write buffer error */ -#define SUN4M_INT_ECC_ERR 0x10000000 /* ecc memory error */ -#define SUN4M_INT_VME_ERR 0x08000000 /* vme async error */ -#define SUN4M_INT_FLOPPY 0x00400000 /* floppy disk */ -#define SUN4M_INT_MODULE 0x00200000 /* module interrupt */ -#define SUN4M_INT_VIDEO 0x00100000 /* onboard video */ -#define SUN4M_INT_REALTIME 0x00080000 /* system timer */ -#define SUN4M_INT_SCSI 0x00040000 /* onboard scsi */ -#define SUN4M_INT_AUDIO 0x00020000 /* audio/isdn */ -#define SUN4M_INT_ETHERNET 0x00010000 /* onboard ethernet */ -#define SUN4M_INT_SERIAL 0x00008000 /* serial ports */ -#define SUN4M_INT_KBDMS 0x00004000 /* keyboard/mouse */ -#define SUN4M_INT_SBUSBITS 0x00003F80 /* sbus int bits */ -#define SUN4M_INT_VMEBITS 0x0000007F /* vme int bits */ - -#define SUN4M_INT_ERROR (SUN4M_INT_MODULE_ERR | \ - SUN4M_INT_M2S_WRITE_ERR | \ - SUN4M_INT_ECC_ERR | \ - SUN4M_INT_VME_ERR) - -#define SUN4M_INT_SBUS(x) (1 << (x+7)) -#define SUN4M_INT_VME(x) (1 << (x)) - -/* Interrupt levels used by OBP */ -#define OBP_INT_LEVEL_SOFT 0x10 -#define OBP_INT_LEVEL_ONBOARD 0x20 -#define OBP_INT_LEVEL_SBUS 0x30 -#define OBP_INT_LEVEL_VME 0x40 - -/* Interrupt level assignment on sun4m: +/* Sample sun4m IRQ layout: + * + * 0x22 - Power + * 0x24 - ESP SCSI + * 0x26 - Lance ethernet + * 0x2b - Floppy + * 0x2c - Zilog uart + * 0x32 - SBUS level 0 + * 0x33 - Parallel port, SBUS level 1 + * 0x35 - SBUS level 2 + * 0x37 - SBUS level 3 + * 0x39 - Audio, Graphics card, SBUS level 4 + * 0x3b - SBUS level 5 + * 0x3d - SBUS level 6 + * + * Each interrupt source has a mask bit in the interrupt registers. + * When the mask bit is set, this blocks interrupt deliver. So you + * clear the bit to enable the interrupt. + * + * Interrupts numbered less than 0x10 are software triggered interrupts + * and unused by Linux. + * + * Interrupt level assignment on sun4m: * * level source * ------------------------------------------------------------ - * 1 softint-1 + * 1 softint-1 * 2 softint-2, VME/SBUS level 1 * 3 softint-3, VME/SBUS level 2 * 4 softint-4, onboard SCSI @@ -138,10 +81,10 @@ struct sun4m_irq_global __iomem *sun4m_irq_global; * 'intr' property IRQ priority values from ss4, ss5, ss10, ss20, and * Tadpole S3 GX systems. * - * esp: 0x24 onboard ESP SCSI - * le: 0x26 onboard Lance ETHERNET + * esp: 0x24 onboard ESP SCSI + * le: 0x26 onboard Lance ETHERNET * p9100: 0x32 SBUS level 1 P9100 video - * bpp: 0x33 SBUS level 2 BPP parallel port device + * bpp: 0x33 SBUS level 2 BPP parallel port device * DBRI: 0x39 SBUS level 5 DBRI ISDN audio * SUNW,leo: 0x39 SBUS level 5 LEO video * pcmcia: 0x3b SBUS level 6 PCMCIA controller @@ -152,8 +95,57 @@ struct sun4m_irq_global __iomem *sun4m_irq_global; * power: 0x22 onboard power device (XXX unknown mask bit XXX) */ + +/* Code in entry.S needs to get at these register mappings. */ +struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; +struct sun4m_irq_global __iomem *sun4m_irq_global; + +/* Dave Redman (djhr@tadpole.co.uk) + * The sun4m interrupt registers. + */ +#define SUN4M_INT_ENABLE 0x80000000 +#define SUN4M_INT_E14 0x00000080 +#define SUN4M_INT_E10 0x00080000 + +#define SUN4M_HARD_INT(x) (0x000000001 << (x)) +#define SUN4M_SOFT_INT(x) (0x000010000 << (x)) + +#define SUN4M_INT_MASKALL 0x80000000 /* mask all interrupts */ +#define SUN4M_INT_MODULE_ERR 0x40000000 /* module error */ +#define SUN4M_INT_M2S_WRITE_ERR 0x20000000 /* write buffer error */ +#define SUN4M_INT_ECC_ERR 0x10000000 /* ecc memory error */ +#define SUN4M_INT_VME_ERR 0x08000000 /* vme async error */ +#define SUN4M_INT_FLOPPY 0x00400000 /* floppy disk */ +#define SUN4M_INT_MODULE 0x00200000 /* module interrupt */ +#define SUN4M_INT_VIDEO 0x00100000 /* onboard video */ +#define SUN4M_INT_REALTIME 0x00080000 /* system timer */ +#define SUN4M_INT_SCSI 0x00040000 /* onboard scsi */ +#define SUN4M_INT_AUDIO 0x00020000 /* audio/isdn */ +#define SUN4M_INT_ETHERNET 0x00010000 /* onboard ethernet */ +#define SUN4M_INT_SERIAL 0x00008000 /* serial ports */ +#define SUN4M_INT_KBDMS 0x00004000 /* keyboard/mouse */ +#define SUN4M_INT_SBUSBITS 0x00003F80 /* sbus int bits */ +#define SUN4M_INT_VMEBITS 0x0000007F /* vme int bits */ + +#define SUN4M_INT_ERROR (SUN4M_INT_MODULE_ERR | \ + SUN4M_INT_M2S_WRITE_ERR | \ + SUN4M_INT_ECC_ERR | \ + SUN4M_INT_VME_ERR) + +#define SUN4M_INT_SBUS(x) (1 << (x+7)) +#define SUN4M_INT_VME(x) (1 << (x)) + +/* Interrupt levels used by OBP */ +#define OBP_INT_LEVEL_SOFT 0x10 +#define OBP_INT_LEVEL_ONBOARD 0x20 +#define OBP_INT_LEVEL_SBUS 0x30 +#define OBP_INT_LEVEL_VME 0x40 + +#define SUN4M_TIMER_IRQ (OBP_INT_LEVEL_ONBOARD | 10) +#define SUM4M_PROFILE_IRQ (OBP_INT_LEVEL_ONBOARD | 14) + static unsigned long irq_mask[0x50] = { - /* SMP */ + /* 0x00 - SMP */ 0, SUN4M_SOFT_INT(1), SUN4M_SOFT_INT(2), SUN4M_SOFT_INT(3), SUN4M_SOFT_INT(4), SUN4M_SOFT_INT(5), @@ -162,7 +154,7 @@ static unsigned long irq_mask[0x50] = { SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11), SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13), SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15), - /* soft */ + /* 0x10 - soft */ 0, SUN4M_SOFT_INT(1), SUN4M_SOFT_INT(2), SUN4M_SOFT_INT(3), SUN4M_SOFT_INT(4), SUN4M_SOFT_INT(5), @@ -171,19 +163,19 @@ static unsigned long irq_mask[0x50] = { SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11), SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13), SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15), - /* onboard */ + /* 0x20 - onboard */ 0, 0, 0, 0, SUN4M_INT_SCSI, 0, SUN4M_INT_ETHERNET, 0, SUN4M_INT_VIDEO, SUN4M_INT_MODULE, SUN4M_INT_REALTIME, SUN4M_INT_FLOPPY, (SUN4M_INT_SERIAL | SUN4M_INT_KBDMS), SUN4M_INT_AUDIO, 0, SUN4M_INT_MODULE_ERR, - /* sbus */ + /* 0x30 - sbus */ 0, 0, SUN4M_INT_SBUS(0), SUN4M_INT_SBUS(1), 0, SUN4M_INT_SBUS(2), 0, SUN4M_INT_SBUS(3), 0, SUN4M_INT_SBUS(4), 0, SUN4M_INT_SBUS(5), 0, SUN4M_INT_SBUS(6), 0, 0, - /* vme */ + /* 0x40 - vme */ 0, 0, SUN4M_INT_VME(0), SUN4M_INT_VME(1), 0, SUN4M_INT_VME(2), 0, SUN4M_INT_VME(3), 0, SUN4M_INT_VME(4), 0, SUN4M_INT_VME(5), @@ -193,7 +185,7 @@ static unsigned long irq_mask[0x50] = { static unsigned long sun4m_get_irqmask(unsigned int irq) { unsigned long mask; - + if (irq < 0x50) mask = irq_mask[irq]; else @@ -217,7 +209,7 @@ static void sun4m_disable_irq(unsigned int irq_nr) sbus_writel(mask, &sun4m_irq_global->mask_set); else sbus_writel(mask, &sun4m_irq_percpu[cpu]->set); - local_irq_restore(flags); + local_irq_restore(flags); } static void sun4m_enable_irq(unsigned int irq_nr) @@ -226,17 +218,17 @@ static void sun4m_enable_irq(unsigned int irq_nr) int cpu = smp_processor_id(); /* Dreadful floppy hack. When we use 0x2b instead of - * 0x0b the system blows (it starts to whistle!). - * So we continue to use 0x0b. Fixme ASAP. --P3 - */ - if (irq_nr != 0x0b) { + * 0x0b the system blows (it starts to whistle!). + * So we continue to use 0x0b. Fixme ASAP. --P3 + */ + if (irq_nr != 0x0b) { mask = sun4m_get_irqmask(irq_nr); local_irq_save(flags); if (irq_nr > 15) sbus_writel(mask, &sun4m_irq_global->mask_clear); else sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear); - local_irq_restore(flags); + local_irq_restore(flags); } else { local_irq_save(flags); sbus_writel(SUN4M_INT_FLOPPY, &sun4m_irq_global->mask_clear); @@ -260,7 +252,7 @@ static unsigned long cpu_pil_to_imask[16] = { /*12*/ SUN4M_INT_SERIAL | SUN4M_INT_KBDMS, /*13*/ SUN4M_INT_SBUS(6) | SUN4M_INT_VME(6) | SUN4M_INT_AUDIO, /*14*/ SUN4M_INT_E14, -/*15*/ SUN4M_INT_ERROR +/*15*/ SUN4M_INT_ERROR, }; /* We assume the caller has disabled local interrupts when these are called, @@ -280,12 +272,14 @@ static void sun4m_enable_pil_irq(unsigned int pil) static void sun4m_send_ipi(int cpu, int level) { unsigned long mask = sun4m_get_irqmask(level); + sbus_writel(mask, &sun4m_irq_percpu[cpu]->set); } static void sun4m_clear_ipi(int cpu, int level) { unsigned long mask = sun4m_get_irqmask(level); + sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear); } @@ -314,7 +308,6 @@ struct sun4m_timer_global { static struct sun4m_timer_global __iomem *timers_global; -#define TIMER_IRQ (OBP_INT_LEVEL_ONBOARD | 10) unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10); @@ -391,7 +384,7 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn) master_l10_counter = &timers_global->l10_count; - err = request_irq(TIMER_IRQ, counter_fn, + err = request_irq(SUN4M_TIMER_IRQ, counter_fn, (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL); if (err) { printk(KERN_ERR "sun4m_init_timers: Register IRQ error %d.\n", @@ -407,7 +400,6 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn) #ifdef CONFIG_SMP { unsigned long flags; - extern unsigned long lvl14_save[4]; struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)]; /* For SMP we use the level 14 ticker, however the bootup code @@ -466,7 +458,9 @@ void __init sun4m_init_IRQ(void) BTFIXUPSET_CALL(disable_pil_irq, sun4m_disable_pil_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(clear_clock_irq, sun4m_clear_clock_irq, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(load_profile_irq, sun4m_load_profile_irq, BTFIXUPCALL_NORM); - sparc_init_timers = sun4m_init_timers; + + sparc_irq_config.init_timers = sun4m_init_timers; + #ifdef CONFIG_SMP BTFIXUPSET_CALL(set_cpu_int, sun4m_send_ipi, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(clear_cpu_int, sun4m_clear_ipi, BTFIXUPCALL_NORM); diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 762d6eedd94..5cc7dc51de3 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -1,59 +1,22 @@ -/* sun4m_smp.c: Sparc SUN4M SMP support. +/* + * sun4m SMP support. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ -#include <asm/head.h> - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/threads.h> -#include <linux/smp.h> #include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/mm.h> -#include <linux/swap.h> #include <linux/profile.h> #include <linux/delay.h> #include <linux/cpu.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> -#include <asm/irq_regs.h> - -#include <asm/ptrace.h> -#include <asm/atomic.h> - -#include <asm/irq.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/oplib.h> -#include <asm/cpudata.h> #include "irq.h" +#include "kernel.h" #define IRQ_CROSS_CALL 15 -extern ctxd_t *srmmu_ctx_table_phys; - -extern volatile unsigned long cpu_callin_map[NR_CPUS]; -extern unsigned char boot_cpu_id; - -extern cpumask_t smp_commenced_mask; - -extern int __smp4m_processor_id(void); - -/*#define SMP_DEBUG*/ - -#ifdef SMP_DEBUG -#define SMP_PRINTK(x) printk x -#else -#define SMP_PRINTK(x) -#endif - static inline unsigned long swap_ulong(volatile unsigned long *ptr, unsigned long val) { @@ -64,7 +27,6 @@ swap_ulong(volatile unsigned long *ptr, unsigned long val) } static void smp_setup_percpu_timer(void); -extern void cpu_probe(void); void __cpuinit smp4m_callin(void) { @@ -96,7 +58,7 @@ void __cpuinit smp4m_callin(void) /* XXX: What's up with all the flushes? */ local_flush_cache_all(); local_flush_tlb_all(); - + cpu_probe(); /* Fix idle thread fields. */ @@ -119,9 +81,6 @@ void __cpuinit smp4m_callin(void) /* * Cycle through the processors asking the PROM to start each one. */ - -extern struct linux_prom_registers smp_penguin_ctable; - void __init smp4m_boot_cpus(void) { smp_setup_percpu_timer(); @@ -130,7 +89,6 @@ void __init smp4m_boot_cpus(void) int __cpuinit smp4m_boot_one_cpu(int i) { - extern unsigned long sun4m_cpu_startup; unsigned long *entry = &sun4m_cpu_startup; struct task_struct *p; int timeout; @@ -142,7 +100,7 @@ int __cpuinit smp4m_boot_one_cpu(int i) p = fork_idle(i); current_set[i] = task_thread_info(p); /* See trampoline.S for details... */ - entry += ((i-1) * 3); + entry += ((i - 1) * 3); /* * Initialize the contexts table @@ -154,20 +112,19 @@ int __cpuinit smp4m_boot_one_cpu(int i) smp_penguin_ctable.reg_size = 0; /* whirrr, whirrr, whirrrrrrrrr... */ - printk("Starting CPU %d at %p\n", i, entry); + printk(KERN_INFO "Starting CPU %d at %p\n", i, entry); local_flush_cache_all(); - prom_startcpu(cpu_node, - &smp_penguin_ctable, 0, (char *)entry); + prom_startcpu(cpu_node, &smp_penguin_ctable, 0, (char *)entry); /* wheee... it's going... */ - for(timeout = 0; timeout < 10000; timeout++) { - if(cpu_callin_map[i]) + for (timeout = 0; timeout < 10000; timeout++) { + if (cpu_callin_map[i]) break; udelay(200); } if (!(cpu_callin_map[i])) { - printk("Processor %d is stuck.\n", i); + printk(KERN_ERR "Processor %d is stuck.\n", i); return -ENODEV; } @@ -202,6 +159,7 @@ void __init smp4m_smp_done(void) void smp4m_irq_rotate(int cpu) { int next = cpu_data(cpu).next; + if (next != cpu) set_irq_udt(next); } @@ -243,7 +201,7 @@ static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, cpu_clear(smp_processor_id(), mask); cpus_and(mask, cpu_online_map, mask); - for(i = 0; i < ncpus; i++) { + for (i = 0; i < ncpus; i++) { if (cpu_isset(i, mask)) { ccall_info.processors_in[i] = 0; ccall_info.processors_out[i] = 0; @@ -262,19 +220,18 @@ static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, do { if (!cpu_isset(i, mask)) continue; - while(!ccall_info.processors_in[i]) + while (!ccall_info.processors_in[i]) barrier(); - } while(++i < ncpus); + } while (++i < ncpus); i = 0; do { if (!cpu_isset(i, mask)) continue; - while(!ccall_info.processors_out[i]) + while (!ccall_info.processors_out[i]) barrier(); - } while(++i < ncpus); + } while (++i < ncpus); } - spin_unlock_irqrestore(&cross_call_lock, flags); } @@ -289,8 +246,6 @@ void smp4m_cross_call_irq(void) ccall_info.processors_out[i] = 1; } -extern void sun4m_clear_profile_irq(int cpu); - void smp4m_percpu_timer_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs; @@ -302,7 +257,7 @@ void smp4m_percpu_timer_interrupt(struct pt_regs *regs) profile_tick(CPU_PROFILING); - if(!--prof_counter(cpu)) { + if (!--prof_counter(cpu)) { int user = user_mode(regs); irq_enter(); @@ -314,8 +269,6 @@ void smp4m_percpu_timer_interrupt(struct pt_regs *regs) set_irq_regs(old_regs); } -extern unsigned int lvl14_resolution; - static void __cpuinit smp_setup_percpu_timer(void) { int cpu = smp_processor_id(); @@ -323,7 +276,7 @@ static void __cpuinit smp_setup_percpu_timer(void) prof_counter(cpu) = prof_multiplier(cpu) = 1; load_profile_irq(cpu, lvl14_resolution); - if(cpu == boot_cpu_id) + if (cpu == boot_cpu_id) enable_pil_irq(14); } @@ -331,9 +284,9 @@ static void __init smp4m_blackbox_id(unsigned *addr) { int rd = *addr & 0x3e000000; int rs1 = rd >> 11; - + addr[0] = 0x81580000 | rd; /* rd %tbr, reg */ - addr[1] = 0x8130200c | rd | rs1; /* srl reg, 0xc, reg */ + addr[1] = 0x8130200c | rd | rs1; /* srl reg, 0xc, reg */ addr[2] = 0x80082003 | rd | rs1; /* and reg, 3, reg */ } @@ -341,9 +294,9 @@ static void __init smp4m_blackbox_current(unsigned *addr) { int rd = *addr & 0x3e000000; int rs1 = rd >> 11; - + addr[0] = 0x81580000 | rd; /* rd %tbr, reg */ - addr[2] = 0x8130200a | rd | rs1; /* srl reg, 0xa, reg */ + addr[2] = 0x8130200a | rd | rs1; /* srl reg, 0xa, reg */ addr[4] = 0x8008200c | rd | rs1; /* and reg, 0xc, reg */ } diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index f836f4e93af..96082d30def 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -360,20 +360,25 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u } EXPORT_SYMBOL(get_fb_unmapped_area); -/* Essentially the same as PowerPC... */ -void arch_pick_mmap_layout(struct mm_struct *mm) +/* Essentially the same as PowerPC. */ +static unsigned long mmap_rnd(void) { - unsigned long random_factor = 0UL; - unsigned long gap; + unsigned long rnd = 0UL; if (current->flags & PF_RANDOMIZE) { - random_factor = get_random_int(); + unsigned long val = get_random_int(); if (test_thread_flag(TIF_32BIT)) - random_factor &= ((1 * 1024 * 1024) - 1); + rnd = (val % (1UL << (22UL-PAGE_SHIFT))); else - random_factor = ((random_factor << PAGE_SHIFT) & - 0xffffffffUL); + rnd = (val % (1UL << (29UL-PAGE_SHIFT))); } + return (rnd << PAGE_SHIFT) * 2; +} + +void arch_pick_mmap_layout(struct mm_struct *mm) +{ + unsigned long random_factor = mmap_rnd(); + unsigned long gap; /* * Fall back to the standard layout if the personality diff --git a/arch/sparc/kernel/tick14.c b/arch/sparc/kernel/tick14.c deleted file mode 100644 index 138bbf5f872..00000000000 --- a/arch/sparc/kernel/tick14.c +++ /dev/null @@ -1,39 +0,0 @@ -/* tick14.c - * - * Copyright (C) 1996 David Redman (djhr@tadpole.co.uk) - * - * This file handles the Sparc specific level14 ticker - * This is really useful for profiling OBP uses it for keyboard - * aborts and other stuff. - */ -#include <linux/kernel.h> - -extern unsigned long lvl14_save[5]; -static unsigned long *linux_lvl14 = NULL; -static unsigned long obp_lvl14[4]; - -/* - * Call with timer IRQ closed. - * First time we do it with disable_irq, later prom code uses spin_lock_irq(). - */ -void install_linux_ticker(void) -{ - - if (!linux_lvl14) - return; - linux_lvl14[0] = lvl14_save[0]; - linux_lvl14[1] = lvl14_save[1]; - linux_lvl14[2] = lvl14_save[2]; - linux_lvl14[3] = lvl14_save[3]; -} - -void install_obp_ticker(void) -{ - - if (!linux_lvl14) - return; - linux_lvl14[0] = obp_lvl14[0]; - linux_lvl14[1] = obp_lvl14[1]; - linux_lvl14[2] = obp_lvl14[2]; - linux_lvl14[3] = obp_lvl14[3]; -} diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 9c743b1886f..8237dd4dfeb 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -85,7 +85,7 @@ int update_persistent_clock(struct timespec now) /* * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "do_timer()" routine every clocktick + * as well as call the "xtime_update()" routine every clocktick */ #define TICK_SIZE (tick_nsec / 1000) @@ -96,14 +96,9 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id) profile_tick(CPU_PROFILING); #endif - /* Protect counter clear so that do_gettimeoffset works */ - write_seqlock(&xtime_lock); - clear_clock_irq(); - do_timer(1); - - write_sequnlock(&xtime_lock); + xtime_update(1); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); @@ -142,7 +137,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit clock_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit clock_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); @@ -176,7 +171,7 @@ static struct of_device_id __initdata clock_match[] = { {}, }; -static struct of_platform_driver clock_driver = { +static struct platform_driver clock_driver = { .probe = clock_probe, .driver = { .name = "rtc", @@ -189,7 +184,7 @@ static struct of_platform_driver clock_driver = { /* Probe for the mostek real time clock chip. */ static int __init clock_init(void) { - return of_register_platform_driver(&clock_driver); + return platform_driver_register(&clock_driver); } /* Must be after subsys_initcall() so that busses are probed. Must * be before device_initcall() because things like the RTC driver @@ -224,7 +219,7 @@ static void __init sbus_time_init(void) btfixup(); - sparc_init_timers(timer_interrupt); + sparc_irq_config.init_timers(timer_interrupt); } void __init time_init(void) diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index 3bc9c9979b9..95ec25faba3 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c @@ -419,7 +419,7 @@ static struct platform_device rtc_cmos_device = { .num_resources = 1, }; -static int __devinit rtc_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit rtc_probe(struct platform_device *op) { struct resource *r; @@ -462,7 +462,7 @@ static struct of_device_id __initdata rtc_match[] = { {}, }; -static struct of_platform_driver rtc_driver = { +static struct platform_driver rtc_driver = { .probe = rtc_probe, .driver = { .name = "rtc", @@ -477,7 +477,7 @@ static struct platform_device rtc_bq4802_device = { .num_resources = 1, }; -static int __devinit bq4802_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit bq4802_probe(struct platform_device *op) { printk(KERN_INFO "%s: BQ4802 regs at 0x%llx\n", @@ -495,7 +495,7 @@ static struct of_device_id __initdata bq4802_match[] = { {}, }; -static struct of_platform_driver bq4802_driver = { +static struct platform_driver bq4802_driver = { .probe = bq4802_probe, .driver = { .name = "bq4802", @@ -534,7 +534,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit mostek_probe(struct platform_device *op, const struct of_device_id *match) +static int __devinit mostek_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; @@ -559,7 +559,7 @@ static struct of_device_id __initdata mostek_match[] = { {}, }; -static struct of_platform_driver mostek_driver = { +static struct platform_driver mostek_driver = { .probe = mostek_probe, .driver = { .name = "mostek", @@ -586,9 +586,9 @@ static int __init clock_init(void) if (tlb_type == hypervisor) return platform_device_register(&rtc_sun4v_device); - (void) of_register_platform_driver(&rtc_driver); - (void) of_register_platform_driver(&mostek_driver); - (void) of_register_platform_driver(&bq4802_driver); + (void) platform_driver_register(&rtc_driver); + (void) platform_driver_register(&mostek_driver); + (void) platform_driver_register(&bq4802_driver); return 0; } @@ -816,14 +816,12 @@ void __init time_init(void) clocksource_hz2mult(freq, SPARC64_NSEC_PER_CYC_SHIFT); clocksource_tick.name = tick_ops->name; - clocksource_calc_mult_shift(&clocksource_tick, freq, 4); clocksource_tick.read = clocksource_tick_read; + clocksource_register_hz(&clocksource_tick, freq); printk("clocksource: mult[%x] shift[%d]\n", clocksource_tick.mult, clocksource_tick.shift); - clocksource_register(&clocksource_tick); - sparc64_clockevent.name = tick_ops->name; clockevents_calc_mult_shift(&sparc64_clockevent, freq, 4); diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index 42ad2ba8501..1ed547bd850 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -622,7 +622,7 @@ static const char CHAFSR_PERR_msg[] = static const char CHAFSR_IERR_msg[] = "Internal processor error"; static const char CHAFSR_ISAP_msg[] = - "System request parity error on incoming addresss"; + "System request parity error on incoming address"; static const char CHAFSR_UCU_msg[] = "Uncorrectable E-cache ECC error for ifetch/data"; static const char CHAFSR_UCC_msg[] = @@ -2152,7 +2152,7 @@ static void user_instruction_dump(unsigned int __user *pc) void show_stack(struct task_struct *tsk, unsigned long *_ksp) { - unsigned long fp, thread_base, ksp; + unsigned long fp, ksp; struct thread_info *tp; int count = 0; #ifdef CONFIG_FUNCTION_GRAPH_TRACER @@ -2173,7 +2173,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) flushw_all(); fp = ksp + STACK_BIAS; - thread_base = (unsigned long) tp; printk("Call Trace:\n"); do { diff --git a/arch/sparc/kernel/una_asm_32.S b/arch/sparc/kernel/una_asm_32.S index 8cc03458eb7..8f096e84a93 100644 --- a/arch/sparc/kernel/una_asm_32.S +++ b/arch/sparc/kernel/una_asm_32.S @@ -24,9 +24,9 @@ retl_efault: .globl __do_int_store __do_int_store: ld [%o2], %g1 - cmp %1, 2 + cmp %o1, 2 be 2f - cmp %1, 4 + cmp %o1, 4 be 1f srl %g1, 24, %g2 srl %g1, 16, %g7 diff --git a/arch/sparc/kernel/una_asm_64.S b/arch/sparc/kernel/una_asm_64.S index be183fe4144..1c8d33228b2 100644 --- a/arch/sparc/kernel/una_asm_64.S +++ b/arch/sparc/kernel/una_asm_64.S @@ -127,7 +127,7 @@ do_int_load: wr %o5, 0x0, %asi retl mov 0, %o0 - .size __do_int_load, .-__do_int_load + .size do_int_load, .-do_int_load .section __ex_table,"a" .word 4b, __retl_efault diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index 0c1e6783657..92b557afe53 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -108,7 +108,7 @@ SECTIONS __sun4v_2insn_patch_end = .; } - PERCPU(PAGE_SIZE) + PERCPU(SMP_CACHE_BYTES, PAGE_SIZE) . = ALIGN(PAGE_SIZE); __init_end = .; diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c index cbddeb38ffd..d3c7a12ad87 100644 --- a/arch/sparc/lib/atomic32.c +++ b/arch/sparc/lib/atomic32.c @@ -16,7 +16,7 @@ #define ATOMIC_HASH(a) (&__atomic_hash[(((unsigned long)a)>>8) & (ATOMIC_HASH_SIZE-1)]) spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] = { - [0 ... (ATOMIC_HASH_SIZE-1)] = SPIN_LOCK_UNLOCKED + [0 ... (ATOMIC_HASH_SIZE-1)] = __SPIN_LOCK_UNLOCKED(__atomic_hash) }; #else /* SMP */ diff --git a/arch/sparc/lib/bitext.c b/arch/sparc/lib/bitext.c index 764b3eb7b60..48d00e72ce1 100644 --- a/arch/sparc/lib/bitext.c +++ b/arch/sparc/lib/bitext.c @@ -10,7 +10,7 @@ */ #include <linux/string.h> -#include <linux/bitops.h> +#include <linux/bitmap.h> #include <asm/bitext.h> @@ -80,8 +80,7 @@ int bit_map_string_get(struct bit_map *t, int len, int align) while (test_bit(offset + i, t->map) == 0) { i++; if (i == len) { - for (i = 0; i < len; i++) - __set_bit(offset + i, t->map); + bitmap_set(t->map, offset, len); if (offset == t->first_free) t->first_free = find_next_zero_bit (t->map, t->size, diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index 5b836f5aea9..b10ac4d6237 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -240,11 +240,10 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, * only copy the information from the master page table, * nothing more. */ + code = SEGV_MAPERR; if (!ARCH_SUN4C && address >= TASK_SIZE) goto vmalloc_fault; - code = SEGV_MAPERR; - /* * If we're in an interrupt or have no user * context, we must not take the fault.. diff --git a/arch/sparc/mm/generic_32.c b/arch/sparc/mm/generic_32.c index 5edcac184ea..e6067b75f11 100644 --- a/arch/sparc/mm/generic_32.c +++ b/arch/sparc/mm/generic_32.c @@ -50,7 +50,7 @@ static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned end = PGDIR_SIZE; offset -= address; do { - pte_t * pte = pte_alloc_map(mm, pmd, address); + pte_t *pte = pte_alloc_map(mm, NULL, pmd, address); if (!pte) return -ENOMEM; io_remap_pte_range(mm, pte, address, end - address, address + offset, prot, space); diff --git a/arch/sparc/mm/generic_64.c b/arch/sparc/mm/generic_64.c index 04f2bf4cd57..3cb00dfd4bd 100644 --- a/arch/sparc/mm/generic_64.c +++ b/arch/sparc/mm/generic_64.c @@ -92,7 +92,7 @@ static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned end = PGDIR_SIZE; offset -= address; do { - pte_t * pte = pte_alloc_map(mm, pmd, address); + pte_t *pte = pte_alloc_map(mm, NULL, pmd, address); if (!pte) return -ENOMEM; io_remap_pte_range(mm, pte, address, end - address, address + offset, prot, space); diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index 5fdddf134ca..f4e97646ce2 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -214,7 +214,7 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, if (pud) { pmd = pmd_alloc(mm, pud, addr); if (pmd) - pte = pte_alloc_map(mm, pmd, addr); + pte = pte_alloc_map(mm, NULL, pmd, addr); } return pte; } diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index ddd0d86e508..b5137cc2aba 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -435,16 +435,14 @@ void __init sun4c_probe_memerr_reg(void) static inline void sun4c_init_ss2_cache_bug(void) { - extern unsigned long start; - if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS2)) || (idprom->id_machtype == (SM_SUN4C | SM_4C_IPX)) || (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC))) { /* Whee.. */ printk("SS2 cache bug detected, uncaching trap table page\n"); - sun4c_flush_page((unsigned int) &start); - sun4c_put_pte(((unsigned long) &start), - (sun4c_get_pte((unsigned long) &start) | _SUN4C_PAGE_NOCACHE)); + sun4c_flush_page((unsigned int) &_start); + sun4c_put_pte(((unsigned long) &_start), + (sun4c_get_pte((unsigned long) &_start) | _SUN4C_PAGE_NOCACHE)); } } diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile index 1b8c073adb4..8287bbe8876 100644 --- a/arch/sparc/prom/Makefile +++ b/arch/sparc/prom/Makefile @@ -5,13 +5,10 @@ asflags := -ansi ccflags := -Werror lib-y := bootstr_$(BITS).o -lib-$(CONFIG_SPARC32) += devmap.o -lib-y += devops_$(BITS).o lib-y += init_$(BITS).o lib-$(CONFIG_SPARC32) += memory.o lib-y += misc_$(BITS).o lib-$(CONFIG_SPARC32) += mp.o -lib-$(CONFIG_SPARC32) += palloc.o lib-$(CONFIG_SPARC32) += ranges.o lib-$(CONFIG_SPARC32) += segment.o lib-y += console_$(BITS).o diff --git a/arch/sparc/prom/bootstr_32.c b/arch/sparc/prom/bootstr_32.c index 916831da7e6..f5ec32e0d41 100644 --- a/arch/sparc/prom/bootstr_32.c +++ b/arch/sparc/prom/bootstr_32.c @@ -29,7 +29,8 @@ prom_getbootargs(void) /* Start from 1 and go over fd(0,0,0)kernel */ for(iter = 1; iter < 8; iter++) { arg = (*(romvec->pv_v0bootargs))->argv[iter]; - if(arg == 0) break; + if (arg == NULL) + break; while(*arg != 0) { /* Leave place for space and null. */ if(cp >= barg_buf + BARG_LEN-2){ diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 5340264b78f..b05e3db5fa6 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -16,63 +16,27 @@ extern void restore_current(void); -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -int -prom_nbgetchar(void) -{ - static char inc; - int i = -1; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - i = (*(romvec->pv_nbgetchar))(); - break; - case PROM_V2: - case PROM_V3: - if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) { - i = inc; - } else { - i = -1; - } - break; - default: - i = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return i; /* Ugh, we could spin forever on unsupported proms ;( */ -} - /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -int -prom_nbputchar(char c) +static int prom_nbputchar(const char *buf) { - static char outc; unsigned long flags; int i = -1; spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: - i = (*(romvec->pv_nbputchar))(c); + if ((*(romvec->pv_nbputchar))(*buf)) + i = 1; break; case PROM_V2: case PROM_V3: - outc = c; - if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1) - i = 0; - else - i = -1; + if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, + buf, 0x1) == 1) + i = 1; break; default: - i = -1; break; }; restore_current(); @@ -80,18 +44,14 @@ prom_nbputchar(char c) return i; /* Ugh, we could spin forever on unsupported proms ;( */ } -/* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_console_write_buf(const char *buf, int len) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; + while (len) { + int n = prom_nbputchar(buf); + if (n < 0) + continue; + len--; + buf++; + } } -/* Blocking version of put character routine above. */ -void -prom_putchar(char c) -{ - while(prom_nbputchar(c) == -1) ; -} diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c index 10322dc2f55..9de6c8cfe04 100644 --- a/arch/sparc/prom/console_64.c +++ b/arch/sparc/prom/console_64.c @@ -13,87 +13,34 @@ #include <asm/system.h> #include <linux/string.h> -extern int prom_stdin, prom_stdout; - -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -inline int -prom_nbgetchar(void) +static int __prom_console_write_buf(const char *buf, int len) { unsigned long args[7]; - char inc; - - args[0] = (unsigned long) "read"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdin; - args[4] = (unsigned long) &inc; - args[5] = 1; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); - - if (args[6] == 1) - return inc; - return -1; -} - -/* Non blocking put character to console device, returns -1 if - * unsuccessful. - */ -inline int -prom_nbputchar(char c) -{ - unsigned long args[7]; - char outc; - - outc = c; + int ret; args[0] = (unsigned long) "write"; args[1] = 3; args[2] = 1; args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) &outc; - args[5] = 1; + args[4] = (unsigned long) buf; + args[5] = (unsigned int) len; args[6] = (unsigned long) -1; p1275_cmd_direct(args); - if (args[6] == 1) - return 0; - else + ret = (int) args[6]; + if (ret < 0) return -1; + return ret; } -/* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_console_write_buf(const char *buf, int len) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; -} - -/* Blocking version of put character routine above. */ -void -prom_putchar(char c) -{ - prom_nbputchar(c); -} - -void -prom_puts(const char *s, int len) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "write"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) prom_stdout; - args[4] = (unsigned long) s; - args[5] = len; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); + while (len) { + int n = __prom_console_write_buf(buf, len); + if (n < 0) + continue; + len -= n; + buf += len; + } } diff --git a/arch/sparc/prom/devmap.c b/arch/sparc/prom/devmap.c deleted file mode 100644 index 46157d2aba0..00000000000 --- a/arch/sparc/prom/devmap.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * promdevmap.c: Map device/IO areas to virtual addresses. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -extern void restore_current(void); - -/* Just like the routines in palloc.c, these should not be used - * by the kernel at all. Bootloader facility mainly. And again, - * this is only available on V2 proms and above. - */ - -/* Map physical device address 'paddr' in IO space 'ios' of size - * 'num_bytes' to a virtual address, with 'vhint' being a hint to - * the prom as to where you would prefer the mapping. We return - * where the prom actually mapped it. - */ -char * -prom_mapio(char *vhint, int ios, unsigned int paddr, unsigned int num_bytes) -{ - unsigned long flags; - char *ret; - - spin_lock_irqsave(&prom_lock, flags); - if((num_bytes == 0) || (paddr == 0)) ret = (char *) 0x0; - else - ret = (*(romvec->pv_v2devops.v2_dumb_mmap))(vhint, ios, paddr, - num_bytes); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return ret; -} - -/* Unmap an IO/device area that was mapped using the above routine. */ -void -prom_unmapio(char *vaddr, unsigned int num_bytes) -{ - unsigned long flags; - - if(num_bytes == 0x0) return; - spin_lock_irqsave(&prom_lock, flags); - (*(romvec->pv_v2devops.v2_dumb_munmap))(vaddr, num_bytes); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); -} diff --git a/arch/sparc/prom/devops_32.c b/arch/sparc/prom/devops_32.c deleted file mode 100644 index 9c5d4687242..00000000000 --- a/arch/sparc/prom/devops_32.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -extern void restore_current(void); - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns -1 on failure. - */ -int -prom_devopen(char *dstr) -{ - int handle; - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - handle = (*(romvec->pv_v0devops.v0_devopen))(dstr); - if(handle == 0) handle = -1; - break; - case PROM_V2: - case PROM_V3: - handle = (*(romvec->pv_v2devops.v2_dev_open))(dstr); - break; - default: - handle = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return handle; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_devclose))(dhandle); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_close))(dhandle); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - (*(romvec->pv_v0devops.v0_seekdev))(dhandle, seekhi, seeklo); - break; - case PROM_V2: - case PROM_V3: - (*(romvec->pv_v2devops.v2_dev_seek))(dhandle, seekhi, seeklo); - break; - default: - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); -} diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c deleted file mode 100644 index a017119e7ef..00000000000 --- a/arch/sparc/prom/devops_64.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * devops.c: Device operations using the PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> - -#include <asm/openprom.h> -#include <asm/oplib.h> - -/* Open the device described by the string 'dstr'. Returns the handle - * to that device used for subsequent operations on that device. - * Returns 0 on failure. - */ -int -prom_devopen(const char *dstr) -{ - unsigned long args[5]; - - args[0] = (unsigned long) "open"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) dstr; - args[4] = (unsigned long) -1; - - p1275_cmd_direct(args); - - return (int) args[4]; -} - -/* Close the device described by device handle 'dhandle'. */ -int -prom_devclose(int dhandle) -{ - unsigned long args[4]; - - args[0] = (unsigned long) "close"; - args[1] = 1; - args[2] = 0; - args[3] = (unsigned int) dhandle; - - p1275_cmd_direct(args); - - return 0; -} - -/* Seek to specified location described by 'seekhi' and 'seeklo' - * for device 'dhandle'. - */ -void -prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo) -{ - unsigned long args[7]; - - args[0] = (unsigned long) "seek"; - args[1] = 3; - args[2] = 1; - args[3] = (unsigned int) dhandle; - args[4] = seekhi; - args[5] = seeklo; - args[6] = (unsigned long) -1; - - p1275_cmd_direct(args); -} diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c index d342dba4dd5..0a601b30063 100644 --- a/arch/sparc/prom/init_32.c +++ b/arch/sparc/prom/init_32.c @@ -60,7 +60,7 @@ void __init prom_init(struct linux_romvec *rp) prom_nodeops = romvec->pv_nodeops; prom_root_node = prom_getsibling(0); - if((prom_root_node == 0) || (prom_root_node == -1)) + if ((prom_root_node == 0) || ((s32)prom_root_node == -1)) prom_halt(); if((((unsigned long) prom_nodeops) == 0) || diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c index 3ff911e7d25..5016c5e2057 100644 --- a/arch/sparc/prom/init_64.c +++ b/arch/sparc/prom/init_64.c @@ -18,7 +18,7 @@ char prom_version[80]; /* The root node of the prom device tree. */ -int prom_stdin, prom_stdout; +int prom_stdout; phandle prom_chosen_node; /* You must call prom_init() before you attempt to use any of the @@ -35,14 +35,13 @@ void __init prom_init(void *cif_handler, void *cif_stack) prom_cif_init(cif_handler, cif_stack); prom_chosen_node = prom_finddevice(prom_chosen_path); - if (!prom_chosen_node || prom_chosen_node == -1) + if (!prom_chosen_node || (s32)prom_chosen_node == -1) prom_halt(); - prom_stdin = prom_getint(prom_chosen_node, "stdin"); prom_stdout = prom_getint(prom_chosen_node, "stdout"); node = prom_finddevice("/openprom"); - if (!node || node == -1) + if (!node || (s32)node == -1) prom_halt(); prom_getstring(node, "version", prom_version, sizeof(prom_version)); diff --git a/arch/sparc/prom/misc_32.c b/arch/sparc/prom/misc_32.c index 4d61c540bb3..677b6a10fbd 100644 --- a/arch/sparc/prom/misc_32.c +++ b/arch/sparc/prom/misc_32.c @@ -54,15 +54,11 @@ EXPORT_SYMBOL(prom_feval); void prom_cmdline(void) { - extern void install_obp_ticker(void); - extern void install_linux_ticker(void); unsigned long flags; spin_lock_irqsave(&prom_lock, flags); - install_obp_ticker(); (*(romvec->pv_abort))(); restore_current(); - install_linux_ticker(); spin_unlock_irqrestore(&prom_lock, flags); set_auxio(AUXIO_LED, 0); } @@ -70,7 +66,7 @@ prom_cmdline(void) /* Drop into the prom, but completely terminate the program. * No chance of continuing. */ -void +void __noreturn prom_halt(void) { unsigned long flags; diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c index d24bc44e361..e4f31d4d371 100644 --- a/arch/sparc/prom/misc_64.c +++ b/arch/sparc/prom/misc_64.c @@ -18,7 +18,7 @@ #include <asm/system.h> #include <asm/ldc.h> -int prom_service_exists(const char *service_name) +static int prom_service_exists(const char *service_name) { unsigned long args[5]; @@ -150,20 +150,6 @@ void prom_halt_power_off(void) prom_halt(); } -/* Set prom sync handler to call function 'funcp'. */ -void prom_setcallback(callback_func_t funcp) -{ - unsigned long args[5]; - if (!funcp) - return; - args[0] = (unsigned long) "set-callback"; - args[1] = 1; - args[2] = 1; - args[3] = (unsigned long) funcp; - args[4] = (unsigned long) -1; - p1275_cmd_direct(args); -} - /* Get the idprom and stuff it into buffer 'idbuf'. Returns the * format type. 'num_bytes' is the number of bytes that your idbuf * has space for. Returns 0xff on error. diff --git a/arch/sparc/prom/mp.c b/arch/sparc/prom/mp.c index 4c4dc79f65a..97c44c9ddbc 100644 --- a/arch/sparc/prom/mp.c +++ b/arch/sparc/prom/mp.c @@ -41,81 +41,3 @@ prom_startcpu(int cpunode, struct linux_prom_registers *ctable_reg, int ctx, cha return ret; } - -/* Stop CPU with device prom-tree node 'cpunode'. - * XXX Again, what does the return value really mean? XXX - */ -int -prom_stopcpu(int cpunode) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - case PROM_V2: - default: - ret = -1; - break; - case PROM_V3: - ret = (*(romvec->v3_cpustop))(cpunode); - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return ret; -} - -/* Make CPU with device prom-tree node 'cpunode' idle. - * XXX Return value, anyone? XXX - */ -int -prom_idlecpu(int cpunode) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - case PROM_V2: - default: - ret = -1; - break; - case PROM_V3: - ret = (*(romvec->v3_cpuidle))(cpunode); - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return ret; -} - -/* Resume the execution of CPU with nodeid 'cpunode'. - * XXX Come on, somebody has to know... XXX - */ -int -prom_restartcpu(int cpunode) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - case PROM_V2: - default: - ret = -1; - break; - case PROM_V3: - ret = (*(romvec->v3_cpuresume))(cpunode); - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - - return ret; -} diff --git a/arch/sparc/prom/palloc.c b/arch/sparc/prom/palloc.c deleted file mode 100644 index 2e2a88b211f..00000000000 --- a/arch/sparc/prom/palloc.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * palloc.c: Memory allocation from the Sun PROM. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <asm/openprom.h> -#include <asm/oplib.h> - -/* You should not call these routines after memory management - * has been initialized in the kernel, if fact you should not - * use these if at all possible in the kernel. They are mainly - * to be used for a bootloader for temporary allocations which - * it will free before jumping into the kernel it has loaded. - * - * Also, these routines don't work on V0 proms, only V2 and later. - */ - -/* Allocate a chunk of memory of size 'num_bytes' giving a suggestion - * of virtual_hint as the preferred virtual base address of this chunk. - * There are no guarantees that you will get the allocation, or that - * the prom will abide by your "hint". So check your return value. - */ -char * -prom_alloc(char *virtual_hint, unsigned int num_bytes) -{ - if(prom_vers == PROM_V0) return (char *) 0x0; - if(num_bytes == 0x0) return (char *) 0x0; - return (*(romvec->pv_v2devops.v2_dumb_mem_alloc))(virtual_hint, num_bytes); -} - -/* Free a previously allocated chunk back to the prom at virtual address - * 'vaddr' of size 'num_bytes'. NOTE: This vaddr is not the hint you - * used for the allocation, but the virtual address the prom actually - * returned to you. They may be have been the same, they may have not, - * doesn't matter. - */ -void -prom_free(char *vaddr, unsigned int num_bytes) -{ - if((prom_vers == PROM_V0) || (num_bytes == 0x0)) return; - (*(romvec->pv_v2devops.v2_dumb_mem_free))(vaddr, num_bytes); -} diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c index ca869266b9f..d9682f06b3b 100644 --- a/arch/sparc/prom/printf.c +++ b/arch/sparc/prom/printf.c @@ -15,22 +15,45 @@ #include <linux/kernel.h> #include <linux/compiler.h> +#include <linux/spinlock.h> #include <asm/openprom.h> #include <asm/oplib.h> +#define CONSOLE_WRITE_BUF_SIZE 1024 + static char ppbuf[1024]; +static char console_write_buf[CONSOLE_WRITE_BUF_SIZE]; +static DEFINE_RAW_SPINLOCK(console_write_lock); void notrace prom_write(const char *buf, unsigned int n) { - char ch; + unsigned int dest_len; + unsigned long flags; + char *dest; + + dest = console_write_buf; + raw_spin_lock_irqsave(&console_write_lock, flags); - while (n != 0) { - --n; - if ((ch = *buf++) == '\n') - prom_putchar('\r'); - prom_putchar(ch); + dest_len = 0; + while (n-- != 0) { + char ch = *buf++; + if (ch == '\n') { + *dest++ = '\r'; + dest_len++; + } + *dest++ = ch; + dest_len++; + if (dest_len >= CONSOLE_WRITE_BUF_SIZE - 1) { + prom_console_write_buf(console_write_buf, dest_len); + dest = console_write_buf; + dest_len = 0; + } } + if (dest_len) + prom_console_write_buf(console_write_buf, dest_len); + + raw_spin_unlock_irqrestore(&console_write_lock, flags); } void notrace prom_printf(const char *fmt, ...) diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c index 541fc829c20..0857aa9e839 100644 --- a/arch/sparc/prom/ranges.c +++ b/arch/sparc/prom/ranges.c @@ -13,8 +13,8 @@ #include <asm/types.h> #include <asm/system.h> -struct linux_prom_ranges promlib_obio_ranges[PROMREG_MAX]; -int num_obio_ranges; +static struct linux_prom_ranges promlib_obio_ranges[PROMREG_MAX]; +static int num_obio_ranges; /* Adjust register values based upon the ranges parameters. */ static void @@ -35,7 +35,7 @@ prom_adjust_regs(struct linux_prom_registers *regp, int nregs, } } -void +static void prom_adjust_ranges(struct linux_prom_ranges *ranges1, int nranges1, struct linux_prom_ranges *ranges2, int nranges2) { diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c index 63e08e14977..f30e8d038f0 100644 --- a/arch/sparc/prom/tree_32.c +++ b/arch/sparc/prom/tree_32.c @@ -20,7 +20,7 @@ extern void restore_current(void); static char promlib_buf[128]; /* Internal version of prom_getchild that does not alter return values. */ -phandle __prom_getchild(phandle node) +static phandle __prom_getchild(phandle node) { unsigned long flags; phandle cnode; @@ -40,11 +40,11 @@ phandle prom_getchild(phandle node) { phandle cnode; - if (node == -1) + if ((s32)node == -1) return 0; cnode = __prom_getchild(node); - if (cnode == 0 || cnode == -1) + if (cnode == 0 || (s32)cnode == -1) return 0; return cnode; @@ -52,7 +52,7 @@ phandle prom_getchild(phandle node) EXPORT_SYMBOL(prom_getchild); /* Internal version of prom_getsibling that does not alter return values. */ -phandle __prom_getsibling(phandle node) +static phandle __prom_getsibling(phandle node) { unsigned long flags; phandle cnode; @@ -72,11 +72,11 @@ phandle prom_getsibling(phandle node) { phandle sibnode; - if (node == -1) + if ((s32)node == -1) return 0; sibnode = __prom_getsibling(node); - if (sibnode == 0 || sibnode == -1) + if (sibnode == 0 || (s32)sibnode == -1) return 0; return sibnode; @@ -177,20 +177,6 @@ void prom_getstring(phandle node, char *prop, char *user_buf, int ubuf_size) EXPORT_SYMBOL(prom_getstring); -/* Does the device at node 'node' have name 'name'? - * YES = 1 NO = 0 - */ -int prom_nodematch(phandle node, char *name) -{ - int error; - - static char namebuf[128]; - error = prom_getproperty(node, "name", namebuf, sizeof(namebuf)); - if (error == -1) return 0; - if(strcmp(namebuf, name) == 0) return 1; - return 0; -} - /* Search siblings at 'node_start' for a node with name * 'nodename'. Return node if successful, zero if not. */ @@ -214,7 +200,7 @@ phandle prom_searchsiblings(phandle node_start, char *nodename) EXPORT_SYMBOL(prom_searchsiblings); /* Interal version of nextprop that does not alter return values. */ -char *__prom_nextprop(phandle node, char * oprop) +static char *__prom_nextprop(phandle node, char * oprop) { unsigned long flags; char *prop; @@ -227,24 +213,13 @@ char *__prom_nextprop(phandle node, char * oprop) return prop; } -/* Return the first property name for node 'node'. */ -/* buffer is unused argument, but as v9 uses it, we need to have the same interface */ -char *prom_firstprop(phandle node, char *bufer) -{ - if (node == 0 || node == -1) - return ""; - - return __prom_nextprop(node, ""); -} -EXPORT_SYMBOL(prom_firstprop); - /* Return the property type string after property type 'oprop' * at node 'node' . Returns empty string if no more * property types for this node. */ char *prom_nextprop(phandle node, char *oprop, char *buffer) { - if (node == 0 || node == -1) + if (node == 0 || (s32)node == -1) return ""; return __prom_nextprop(node, oprop); @@ -278,7 +253,7 @@ phandle prom_finddevice(char *name) if (d != s + 3 && (!*d || *d == '/') && d <= s + 3 + 8) { node2 = node; - while (node2 && node2 != -1) { + while (node2 && (s32)node2 != -1) { if (prom_getproperty (node2, "reg", (char *)reg, sizeof (reg)) > 0) { if (which_io == reg[0].which_io && phys_addr == reg[0].phys_addr) { node = node2; @@ -286,7 +261,7 @@ phandle prom_finddevice(char *name) } } node2 = prom_getsibling(node2); - if (!node2 || node2 == -1) + if (!node2 || (s32)node2 == -1) break; node2 = prom_searchsiblings(prom_getsibling(node2), nbuf); } @@ -299,19 +274,6 @@ phandle prom_finddevice(char *name) } EXPORT_SYMBOL(prom_finddevice); -int prom_node_has_property(phandle node, char *prop) -{ - char *current_property = ""; - - do { - current_property = prom_nextprop(node, current_property, NULL); - if(!strcmp(current_property, prop)) - return 1; - } while (*current_property); - return 0; -} -EXPORT_SYMBOL(prom_node_has_property); - /* Set property 'pname' at node 'node' to value 'value' which has a length * of 'size' bytes. Return the number of bytes the prom accepted. */ @@ -320,8 +282,10 @@ int prom_setprop(phandle node, const char *pname, char *value, int size) unsigned long flags; int ret; - if(size == 0) return 0; - if((pname == 0) || (value == 0)) return 0; + if (size == 0) + return 0; + if ((pname == NULL) || (value == NULL)) + return 0; spin_lock_irqsave(&prom_lock, flags); ret = prom_nodeops->no_setprop(node, pname, value, size); restore_current(); @@ -339,22 +303,7 @@ phandle prom_inst2pkg(int inst) node = (*romvec->pv_v2devops.v2_inst2pkg)(inst); restore_current(); spin_unlock_irqrestore(&prom_lock, flags); - if (node == -1) return 0; - return node; -} - -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -phandle prom_pathtoinode(char *path) -{ - phandle node; - int inst; - - inst = prom_devopen (path); - if (inst == -1) return 0; - node = prom_inst2pkg (inst); - prom_devclose (inst); - if (node == -1) return 0; + if ((s32)node == -1) + return 0; return node; } diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c index 691be68932f..92204c3800b 100644 --- a/arch/sparc/prom/tree_64.c +++ b/arch/sparc/prom/tree_64.c @@ -43,10 +43,10 @@ inline phandle prom_getchild(phandle node) { phandle cnode; - if (node == -1) + if ((s32)node == -1) return 0; cnode = __prom_getchild(node); - if (cnode == -1) + if ((s32)cnode == -1) return 0; return cnode; } @@ -56,10 +56,10 @@ inline phandle prom_getparent(phandle node) { phandle cnode; - if (node == -1) + if ((s32)node == -1) return 0; cnode = prom_node_to_node("parent", node); - if (cnode == -1) + if ((s32)cnode == -1) return 0; return cnode; } @@ -76,10 +76,10 @@ inline phandle prom_getsibling(phandle node) { phandle sibnode; - if (node == -1) + if ((s32)node == -1) return 0; sibnode = __prom_getsibling(node); - if (sibnode == -1) + if ((s32)sibnode == -1) return 0; return sibnode; @@ -240,7 +240,7 @@ inline char *prom_firstprop(phandle node, char *buffer) unsigned long args[7]; *buffer = 0; - if (node == -1) + if ((s32)node == -1) return buffer; args[0] = (unsigned long) prom_nextprop_name; @@ -266,7 +266,7 @@ inline char *prom_nextprop(phandle node, const char *oprop, char *buffer) unsigned long args[7]; char buf[32]; - if (node == -1) { + if ((s32)node == -1) { *buffer = 0; return buffer; } @@ -369,25 +369,7 @@ inline phandle prom_inst2pkg(int inst) p1275_cmd_direct(args); node = (int) args[4]; - if (node == -1) - return 0; - return node; -} - -/* Return 'node' assigned to a particular prom 'path' - * FIXME: Should work for v0 as well - */ -phandle prom_pathtoinode(const char *path) -{ - phandle node; - int inst; - - inst = prom_devopen (path); - if (inst == 0) - return 0; - node = prom_inst2pkg(inst); - prom_devclose(inst); - if (node == -1) + if ((s32)node == -1) return 0; return node; } |