diff options
| -rw-r--r-- | arch/sh/Kconfig | 3 | ||||
| -rw-r--r-- | arch/sh/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh2a/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/dump_task.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/process_32.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/signal_32.c | 1 | ||||
| -rw-r--r-- | include/asm-sh/floppy.h | 268 | ||||
| -rw-r--r-- | include/asm-sh/fpu.h | 39 | ||||
| -rw-r--r-- | include/asm-sh/processor.h | 1 | ||||
| -rw-r--r-- | include/asm-sh/processor_32.h | 1 | ||||
| -rw-r--r-- | include/asm-sh/processor_64.h | 1 |
13 files changed, 33 insertions, 288 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 12720489e45..8d2cd1de572 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -72,9 +72,6 @@ config SYS_SUPPORTS_NUMA config SYS_SUPPORTS_PCI bool -config ARCH_MAY_HAVE_PC_FDC - bool - config STACKTRACE_SUPPORT def_bool y diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile index 3dda24daa0a..89b408620dc 100644 --- a/arch/sh/boot/Makefile +++ b/arch/sh/boot/Makefile @@ -44,7 +44,7 @@ KERNEL_ENTRY := $(shell /bin/bash -c 'printf "0x%08x" \ quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \ - -C none -a $(KERNEL_LOAD) -e $(KERNEL_ENTRY) \ + -C gzip -a $(KERNEL_LOAD) -e $(KERNEL_ENTRY) \ -n 'Linux-$(KERNELRELEASE)' -d $< $@ $(obj)/uImage: $(obj)/vmlinux.bin.gz FORCE diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c index ff99562456f..5627c0b3ffa 100644 --- a/arch/sh/kernel/cpu/sh2a/fpu.c +++ b/arch/sh/kernel/cpu/sh2a/fpu.c @@ -13,6 +13,7 @@ #include <linux/signal.h> #include <asm/processor.h> #include <asm/io.h> +#include <asm/fpu.h> /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c index 817f9939cda..8020796139f 100644 --- a/arch/sh/kernel/cpu/sh4/fpu.c +++ b/arch/sh/kernel/cpu/sh4/fpu.c @@ -16,6 +16,7 @@ #include <asm/cpu/fpu.h> #include <asm/processor.h> #include <asm/system.h> +#include <asm/fpu.h> /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c index 30b76a94abf..dd4f51ffb50 100644 --- a/arch/sh/kernel/cpu/sh5/fpu.c +++ b/arch/sh/kernel/cpu/sh5/fpu.c @@ -17,6 +17,7 @@ #include <asm/processor.h> #include <asm/user.h> #include <asm/io.h> +#include <asm/fpu.h> /* * Initially load the FPU with signalling NANS. This bit pattern diff --git a/arch/sh/kernel/dump_task.c b/arch/sh/kernel/dump_task.c index 4a8a4083ff0..1db7ce0f25d 100644 --- a/arch/sh/kernel/dump_task.c +++ b/arch/sh/kernel/dump_task.c @@ -1,5 +1,6 @@ #include <linux/elfcore.h> #include <linux/sched.h> +#include <asm/fpu.h> /* * Capture the user space registers if the task is not running (in user space) diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 9ab1926b9d1..b98e37a1f54 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -25,6 +25,7 @@ #include <asm/pgalloc.h> #include <asm/system.h> #include <asm/ubc.h> +#include <asm/fpu.h> static int hlt_counter; int ubc_usercnt = 0; diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index f6b5fbfe75c..f311551d9a0 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -29,6 +29,7 @@ #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/cacheflush.h> +#include <asm/fpu.h> #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) diff --git a/include/asm-sh/floppy.h b/include/asm-sh/floppy.h deleted file mode 100644 index 59fbfdc90df..00000000000 --- a/include/asm-sh/floppy.h +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Architecture specific parts of the Floppy driver - * include/asm-i386/floppy.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1995 - */ -#ifndef __ASM_SH_FLOPPY_H -#define __ASM_SH_FLOPPY_H - -#include <linux/vmalloc.h> - - -/* - * The DMA channel used by the floppy controller cannot access data at - * addresses >= 16MB - * - * Went back to the 1MB limit, as some people had problems with the floppy - * driver otherwise. It doesn't matter much for performance anyway, as most - * floppy accesses go through the track buffer. - */ -#define _CROSS_64KB(a,s,vdma) \ -(!vdma && ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64)) - -#define CROSS_64KB(a,s) _CROSS_64KB(a,s,use_virtual_dma & 1) - - -#define SW fd_routine[use_virtual_dma&1] -#define CSW fd_routine[can_use_virtual_dma & 1] - - -#define fd_inb(port) inb_p(port) -#define fd_outb(value,port) outb_p(value,port) - -#define fd_request_dma() CSW._request_dma(FLOPPY_DMA,"floppy") -#define fd_free_dma() CSW._free_dma(FLOPPY_DMA) -#define fd_enable_irq() enable_irq(FLOPPY_IRQ) -#define fd_disable_irq() disable_irq(FLOPPY_IRQ) -#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL) -#define fd_get_dma_residue() SW._get_dma_residue(FLOPPY_DMA) -#define fd_dma_mem_alloc(size) SW._dma_mem_alloc(size) -#define fd_dma_setup(addr, size, mode, io) SW._dma_setup(addr, size, mode, io) - -#define FLOPPY_CAN_FALLBACK_ON_NODMA - -static int virtual_dma_count; -static int virtual_dma_residue; -static char *virtual_dma_addr; -static int virtual_dma_mode; -static int doing_pdma; - -static void floppy_hardint(int irq, void *dev_id, struct pt_regs * regs) -{ - register unsigned char st; - -#undef TRACE_FLPY_INT - -#ifdef TRACE_FLPY_INT - static int calls=0; - static int bytes=0; - static int dma_wait=0; -#endif - if(!doing_pdma) { - floppy_interrupt(irq, dev_id, regs); - return; - } - -#ifdef TRACE_FLPY_INT - if(!calls) - bytes = virtual_dma_count; -#endif - - { - register int lcount; - register char *lptr; - - st = 1; - for(lcount=virtual_dma_count, lptr=virtual_dma_addr; - lcount; lcount--, lptr++) { - st=inb(virtual_dma_port+4) & 0xa0 ; - if(st != 0xa0) - break; - if(virtual_dma_mode) - outb_p(*lptr, virtual_dma_port+5); - else - *lptr = inb_p(virtual_dma_port+5); - } - virtual_dma_count = lcount; - virtual_dma_addr = lptr; - st = inb(virtual_dma_port+4); - } - -#ifdef TRACE_FLPY_INT - calls++; -#endif - if(st == 0x20) - return; - if(!(st & 0x20)) { - virtual_dma_residue += virtual_dma_count; - virtual_dma_count=0; -#ifdef TRACE_FLPY_INT - printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n", - virtual_dma_count, virtual_dma_residue, calls, bytes, - dma_wait); - calls = 0; - dma_wait=0; -#endif - doing_pdma = 0; - floppy_interrupt(irq, dev_id, regs); - return; - } -#ifdef TRACE_FLPY_INT - if(!virtual_dma_count) - dma_wait++; -#endif -} - -static void fd_disable_dma(void) -{ - if(! (can_use_virtual_dma & 1)) - disable_dma(FLOPPY_DMA); - doing_pdma = 0; - virtual_dma_residue += virtual_dma_count; - virtual_dma_count=0; -} - -static int vdma_request_dma(unsigned int dmanr, const char * device_id) -{ - return 0; -} - -static void vdma_nop(unsigned int dummy) -{ -} - - -static int vdma_get_dma_residue(unsigned int dummy) -{ - return virtual_dma_count + virtual_dma_residue; -} - - -static int fd_request_irq(void) -{ - if(can_use_virtual_dma) - return request_irq(FLOPPY_IRQ, floppy_hardint, - IRQF_DISABLED, "floppy", NULL); - else - return request_irq(FLOPPY_IRQ, floppy_interrupt, - IRQF_DISABLED, "floppy", NULL); -} - -static unsigned long dma_mem_alloc(unsigned long size) -{ - return __get_dma_pages(GFP_KERNEL,get_order(size)); -} - - -static unsigned long vdma_mem_alloc(unsigned long size) -{ - return (unsigned long) vmalloc(size); - -} - -#define nodma_mem_alloc(size) vdma_mem_alloc(size) - -static void _fd_dma_mem_free(unsigned long addr, unsigned long size) -{ - if((unsigned int) addr >= (unsigned int) high_memory) - return vfree((void *)addr); - else - free_pages(addr, get_order(size)); -} - -#define fd_dma_mem_free(addr, size) _fd_dma_mem_free(addr, size) - -static void _fd_chose_dma_mode(char *addr, unsigned long size) -{ - if(can_use_virtual_dma == 2) { - if((unsigned int) addr >= (unsigned int) high_memory || - virt_to_phys(addr) >= 0x10000000) - use_virtual_dma = 1; - else - use_virtual_dma = 0; - } else { - use_virtual_dma = can_use_virtual_dma & 1; - } -} - -#define fd_chose_dma_mode(addr, size) _fd_chose_dma_mode(addr, size) - - -static int vdma_dma_setup(char *addr, unsigned long size, int mode, int io) -{ - doing_pdma = 1; - virtual_dma_port = io; - virtual_dma_mode = (mode == DMA_MODE_WRITE); - virtual_dma_addr = addr; - virtual_dma_count = size; - virtual_dma_residue = 0; - return 0; -} - -static int hard_dma_setup(char *addr, unsigned long size, int mode, int io) -{ -#ifdef FLOPPY_SANITY_CHECK - if (CROSS_64KB(addr, size)) { - printk("DMA crossing 64-K boundary %p-%p\n", addr, addr+size); - return -1; - } -#endif - - __flush_purge_region(addr, size); - - /* actual, physical DMA */ - doing_pdma = 0; - clear_dma_ff(FLOPPY_DMA); - set_dma_mode(FLOPPY_DMA,mode); - set_dma_addr(FLOPPY_DMA,virt_to_phys(addr)); - set_dma_count(FLOPPY_DMA,size); - enable_dma(FLOPPY_DMA); - return 0; -} - -static struct fd_routine_l { - int (*_request_dma)(unsigned int dmanr, const char * device_id); - void (*_free_dma)(unsigned int dmanr); - int (*_get_dma_residue)(unsigned int dummy); - unsigned long (*_dma_mem_alloc) (unsigned long size); - int (*_dma_setup)(char *addr, unsigned long size, int mode, int io); -} fd_routine[] = { - { - request_dma, - free_dma, - get_dma_residue, - dma_mem_alloc, - hard_dma_setup - }, - { - vdma_request_dma, - vdma_nop, - vdma_get_dma_residue, - vdma_mem_alloc, - vdma_dma_setup - } -}; - - -static int FDC1 = 0x3f0; -static int FDC2 = -1; - -/* - * Floppy types are stored in the rtc's CMOS RAM and so rtc_lock - * is needed to prevent corrupted CMOS RAM in case "insmod floppy" - * coincides with another rtc CMOS user. Paul G. - */ -#define FLOPPY0_TYPE (4) -#define FLOPPY1_TYPE (0) - -#define N_FDC 2 -#define N_DRIVE 8 - -#define EXTRA_FLOPPY_PARAMS - -#endif /* __ASM_SH_FLOPPY_H */ diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h index f8429880a27..91462fea150 100644 --- a/include/asm-sh/fpu.h +++ b/include/asm-sh/fpu.h @@ -1,9 +1,8 @@ #ifndef __ASM_SH_FPU_H #define __ASM_SH_FPU_H -#define SR_FD 0x00008000 - #ifndef __ASSEMBLY__ +#include <linux/preempt.h> #include <asm/ptrace.h> #ifdef CONFIG_SH_FPU @@ -21,25 +20,35 @@ struct task_struct; extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); #else + #define release_fpu(regs) do { } while (0) #define grab_fpu(regs) do { } while (0) -#define save_fpu(tsk, regs) do { } while (0) + +static inline void save_fpu(struct task_struct *tsk, struct pt_regs *regs) +{ + clear_tsk_thread_flag(tsk, TIF_USEDFPU); +} #endif extern int do_fpu_inst(unsigned short, struct pt_regs *); -#define unlazy_fpu(tsk, regs) do { \ - if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - save_fpu(tsk, regs); \ - } \ -} while (0) - -#define clear_fpu(tsk, regs) do { \ - if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - clear_tsk_thread_flag(tsk, TIF_USEDFPU); \ - release_fpu(regs); \ - } \ -} while (0) +static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs) +{ + preempt_disable(); + if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) + save_fpu(tsk, regs); + preempt_enable(); +} + +static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs) +{ + preempt_disable(); + if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { + clear_tsk_thread_flag(tsk, TIF_USEDFPU); + release_fpu(regs); + } + preempt_enable(); +} #endif /* __ASSEMBLY__ */ diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 19fe47c1ca1..ec707b98e5b 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -2,7 +2,6 @@ #define __ASM_SH_PROCESSOR_H #include <asm/cpu-features.h> -#include <asm/fpu.h> #ifndef __ASSEMBLY__ /* diff --git a/include/asm-sh/processor_32.h b/include/asm-sh/processor_32.h index df2d5b039ef..c09305d6a9d 100644 --- a/include/asm-sh/processor_32.h +++ b/include/asm-sh/processor_32.h @@ -70,6 +70,7 @@ extern struct sh_cpuinfo cpu_data[]; */ #define SR_DSP 0x00001000 #define SR_IMASK 0x000000f0 +#define SR_FD 0x00008000 /* * FPU structure and data diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h index eda4bef448e..88a2edf8fa5 100644 --- a/include/asm-sh/processor_64.h +++ b/include/asm-sh/processor_64.h @@ -112,6 +112,7 @@ extern struct sh_cpuinfo cpu_data[]; #endif #define SR_IMASK 0x000000f0 +#define SR_FD 0x00008000 #define SR_SSTEP 0x08000000 #ifndef __ASSEMBLY__ |