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-rw-r--r--arch/arm26/kernel/Makefile17
-rw-r--r--arch/arm26/kernel/armksyms.c204
-rw-r--r--arch/arm26/kernel/asm-offsets.c55
-rw-r--r--arch/arm26/kernel/calls.S265
-rw-r--r--arch/arm26/kernel/compat.c173
-rw-r--r--arch/arm26/kernel/dma.c273
-rw-r--r--arch/arm26/kernel/ecard.c847
-rw-r--r--arch/arm26/kernel/entry.S951
-rw-r--r--arch/arm26/kernel/fiq.c201
-rw-r--r--arch/arm26/kernel/head.S112
-rw-r--r--arch/arm26/kernel/init_task.c49
-rw-r--r--arch/arm26/kernel/irq.c722
-rw-r--r--arch/arm26/kernel/process.c392
-rw-r--r--arch/arm26/kernel/ptrace.c670
-rw-r--r--arch/arm26/kernel/ptrace.h13
-rw-r--r--arch/arm26/kernel/semaphore.c222
-rw-r--r--arch/arm26/kernel/setup.c572
-rw-r--r--arch/arm26/kernel/signal.c538
-rw-r--r--arch/arm26/kernel/sys_arm.c323
-rw-r--r--arch/arm26/kernel/time.c210
-rw-r--r--arch/arm26/kernel/traps.c548
-rw-r--r--arch/arm26/kernel/vmlinux-arm26-xip.lds.in136
-rw-r--r--arch/arm26/kernel/vmlinux-arm26.lds.in129
-rw-r--r--arch/arm26/kernel/vmlinux.lds.S11
24 files changed, 0 insertions, 7633 deletions
diff --git a/arch/arm26/kernel/Makefile b/arch/arm26/kernel/Makefile
deleted file mode 100644
index ee9fb49fdb7..00000000000
--- a/arch/arm26/kernel/Makefile
+++ /dev/null
@@ -1,17 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-# Object file lists.
-
-AFLAGS_head.o := -DTEXTADDR=$(TEXTADDR)
-
-obj-y := compat.o dma.o entry.o irq.o process.o ptrace.o \
- semaphore.o setup.o signal.o sys_arm.o time.o traps.o \
- ecard.o dma.o ecard.o fiq.o time.o
-
-extra-y := head.o init_task.o vmlinux.lds
-
-obj-$(CONFIG_FIQ) += fiq.o
-obj-$(CONFIG_MODULES) += armksyms.o
-
diff --git a/arch/arm26/kernel/armksyms.c b/arch/arm26/kernel/armksyms.c
deleted file mode 100644
index fe1e3ceed7c..00000000000
--- a/arch/arm26/kernel/armksyms.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * linux/arch/arm26/kernel/armksyms.c
- *
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/module.h>
-#include <linux/user.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/delay.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/pm.h>
-#include <linux/tty.h>
-#include <linux/vt_kern.h>
-#include <linux/syscalls.h>
-
-#include <asm/byteorder.h>
-#include <asm/elf.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/processor.h>
-#include <asm/semaphore.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/mach-types.h>
-
-extern int dump_fpu(struct pt_regs *, struct user_fp_struct *);
-extern void inswb(unsigned int port, void *to, int len);
-extern void outswb(unsigned int port, const void *to, int len);
-
-extern void __bad_xchg(volatile void *ptr, int size);
-
-/*
- * libgcc functions - functions that are used internally by the
- * compiler... (prototypes are not correct though, but that
- * doesn't really matter since they're not versioned).
- */
-extern void __ashldi3(void);
-extern void __ashrdi3(void);
-extern void __divsi3(void);
-extern void __lshrdi3(void);
-extern void __modsi3(void);
-extern void __muldi3(void);
-extern void __ucmpdi2(void);
-extern void __udivdi3(void);
-extern void __umoddi3(void);
-extern void __udivmoddi4(void);
-extern void __udivsi3(void);
-extern void __umodsi3(void);
-extern void abort(void);
-
-extern void ret_from_exception(void);
-extern void fpundefinstr(void);
-extern void fp_enter(void);
-
-/*
- * This has a special calling convention; it doesn't
- * modify any of the usual registers, except for LR.
- * FIXME - we used to use our own local version - looks to be in kernel/softirq now
- */
-//extern void __do_softirq(void);
-
-#define EXPORT_SYMBOL_ALIAS(sym,orig) \
- const char __kstrtab_##sym[] \
- __attribute__((section(".kstrtab"))) = \
- __MODULE_STRING(sym); \
- const struct module_symbol __ksymtab_##sym \
- __attribute__((section("__ksymtab"))) = \
- { (unsigned long)&orig, __kstrtab_##sym };
-
-/*
- * floating point math emulator support.
- * These symbols will never change their calling convention...
- */
-EXPORT_SYMBOL_ALIAS(kern_fp_enter,fp_enter);
-EXPORT_SYMBOL_ALIAS(fp_printk,printk);
-EXPORT_SYMBOL_ALIAS(fp_send_sig,send_sig);
-
-EXPORT_SYMBOL(fpundefinstr);
-EXPORT_SYMBOL(ret_from_exception);
-
-#ifdef CONFIG_VT
-EXPORT_SYMBOL(kd_mksound);
-#endif
-
-//EXPORT_SYMBOL(__do_softirq);
-
- /* platform dependent support */
-EXPORT_SYMBOL(dump_thread);
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(udelay);
-EXPORT_SYMBOL(kernel_thread);
-EXPORT_SYMBOL(system_rev);
-EXPORT_SYMBOL(system_serial_low);
-EXPORT_SYMBOL(system_serial_high);
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-EXPORT_SYMBOL(__bug);
-#endif
-EXPORT_SYMBOL(__bad_xchg);
-EXPORT_SYMBOL(__readwrite_bug);
-EXPORT_SYMBOL(set_irq_type);
-EXPORT_SYMBOL(pm_idle);
-EXPORT_SYMBOL(pm_power_off);
-
- /* processor dependencies */
-EXPORT_SYMBOL(__machine_arch_type);
-
- /* networking */
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-EXPORT_SYMBOL(__csum_ipv6_magic);
-
- /* io */
-#ifndef __raw_readsb
-EXPORT_SYMBOL(__raw_readsb);
-#endif
-#ifndef __raw_readsw
-EXPORT_SYMBOL(__raw_readsw);
-#endif
-#ifndef __raw_readsl
-EXPORT_SYMBOL(__raw_readsl);
-#endif
-#ifndef __raw_writesb
-EXPORT_SYMBOL(__raw_writesb);
-#endif
-#ifndef __raw_writesw
-EXPORT_SYMBOL(__raw_writesw);
-#endif
-#ifndef __raw_writesl
-EXPORT_SYMBOL(__raw_writesl);
-#endif
-
- /* string / mem functions */
-EXPORT_SYMBOL(strcpy);
-EXPORT_SYMBOL(strncpy);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strncat);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strncmp);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strnlen);
-EXPORT_SYMBOL(strrchr);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memscan);
-EXPORT_SYMBOL(__memzero);
-
- /* user mem (segment) */
-EXPORT_SYMBOL(uaccess_kernel);
-EXPORT_SYMBOL(uaccess_user);
-
-EXPORT_SYMBOL(__get_user_1);
-EXPORT_SYMBOL(__get_user_2);
-EXPORT_SYMBOL(__get_user_4);
-EXPORT_SYMBOL(__get_user_8);
-
-EXPORT_SYMBOL(__put_user_1);
-EXPORT_SYMBOL(__put_user_2);
-EXPORT_SYMBOL(__put_user_4);
-EXPORT_SYMBOL(__put_user_8);
-
- /* gcc lib functions */
-EXPORT_SYMBOL(__ashldi3);
-EXPORT_SYMBOL(__ashrdi3);
-EXPORT_SYMBOL(__divsi3);
-EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(__modsi3);
-EXPORT_SYMBOL(__muldi3);
-EXPORT_SYMBOL(__ucmpdi2);
-EXPORT_SYMBOL(__udivdi3);
-EXPORT_SYMBOL(__umoddi3);
-EXPORT_SYMBOL(__udivmoddi4);
-EXPORT_SYMBOL(__udivsi3);
-EXPORT_SYMBOL(__umodsi3);
-
- /* bitops */
-EXPORT_SYMBOL(_set_bit_le);
-EXPORT_SYMBOL(_test_and_set_bit_le);
-EXPORT_SYMBOL(_clear_bit_le);
-EXPORT_SYMBOL(_test_and_clear_bit_le);
-EXPORT_SYMBOL(_change_bit_le);
-EXPORT_SYMBOL(_test_and_change_bit_le);
-EXPORT_SYMBOL(_find_first_zero_bit_le);
-EXPORT_SYMBOL(_find_next_zero_bit_le);
-
- /* elf */
-EXPORT_SYMBOL(elf_platform);
-EXPORT_SYMBOL(elf_hwcap);
-
-#ifdef CONFIG_PREEMPT
-EXPORT_SYMBOL(kernel_flag);
-#endif
diff --git a/arch/arm26/kernel/asm-offsets.c b/arch/arm26/kernel/asm-offsets.c
deleted file mode 100644
index 76d9d7d489a..00000000000
--- a/arch/arm26/kernel/asm-offsets.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 1995-2001 Russell King
- * 2001-2002 Keith Owens
- * 2003 Ian Molton
- *
- * Generate definitions needed by assembly language modules.
- * This code generates raw asm output which is post-processed to extract
- * and format the required data.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-
-/*
- * Make sure that the compiler and target are compatible.
- */
-#if defined(__APCS_32__) && defined(CONFIG_CPU_26)
-#error Sorry, your compiler targets APCS-32 but this kernel requires APCS-26
-#endif
-
-/* Use marker if you need to separate the values later */
-
-#define DEFINE(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define BLANK() asm volatile("\n->" : : )
-
-int main(void)
-{
- DEFINE(TSK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
- BLANK();
- DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm));
- DEFINE(VMA_VM_FLAGS, offsetof(struct vm_area_struct, vm_flags));
- BLANK();
- DEFINE(VM_EXEC, VM_EXEC);
- BLANK();
- BLANK();
- DEFINE(PAGE_PRESENT, _PAGE_PRESENT);
- DEFINE(PAGE_READONLY, _PAGE_READONLY);
- DEFINE(PAGE_NOT_USER, _PAGE_NOT_USER);
- DEFINE(PAGE_OLD, _PAGE_OLD);
- DEFINE(PAGE_CLEAN, _PAGE_CLEAN);
- BLANK();
- DEFINE(PAGE_SZ, PAGE_SIZE);
- BLANK();
- DEFINE(SYS_ERROR0, 0x9f0000);
- return 0;
-}
diff --git a/arch/arm26/kernel/calls.S b/arch/arm26/kernel/calls.S
deleted file mode 100644
index e3d276827c8..00000000000
--- a/arch/arm26/kernel/calls.S
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- * linux/arch/arm26/kernel/calls.S
- *
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * FIXME
- * This file is included twice in entry.S which may not be necessary
- */
-
-//FIXME - clearly NR_syscalls is never defined here
-
-#ifndef NR_syscalls
-#define NR_syscalls 256
-#else
-
-__syscall_start:
-/* 0 */ .long sys_ni_syscall
- .long sys_exit
- .long sys_fork_wrapper
- .long sys_read
- .long sys_write
-/* 5 */ .long sys_open
- .long sys_close
- .long sys_ni_syscall /* was sys_waitpid */
- .long sys_creat
- .long sys_link
-/* 10 */ .long sys_unlink
- .long sys_execve_wrapper
- .long sys_chdir
- .long sys_time /* used by libc4 */
- .long sys_mknod
-/* 15 */ .long sys_chmod
- .long sys_lchown16
- .long sys_ni_syscall /* was sys_break */
- .long sys_ni_syscall /* was sys_stat */
- .long sys_lseek
-/* 20 */ .long sys_getpid
- .long sys_mount
- .long sys_oldumount /* used by libc4 */
- .long sys_setuid16
- .long sys_getuid16
-/* 25 */ .long sys_stime
- .long sys_ptrace
- .long sys_alarm /* used by libc4 */
- .long sys_ni_syscall /* was sys_fstat */
- .long sys_pause
-/* 30 */ .long sys_utime /* used by libc4 */
- .long sys_ni_syscall /* was sys_stty */
- .long sys_ni_syscall /* was sys_getty */
- .long sys_access
- .long sys_nice
-/* 35 */ .long sys_ni_syscall /* was sys_ftime */
- .long sys_sync
- .long sys_kill
- .long sys_rename
- .long sys_mkdir
-/* 40 */ .long sys_rmdir
- .long sys_dup
- .long sys_pipe
- .long sys_times
- .long sys_ni_syscall /* was sys_prof */
-/* 45 */ .long sys_brk
- .long sys_setgid16
- .long sys_getgid16
- .long sys_ni_syscall /* was sys_signal */
- .long sys_geteuid16
-/* 50 */ .long sys_getegid16
- .long sys_acct
- .long sys_umount
- .long sys_ni_syscall /* was sys_lock */
- .long sys_ioctl
-/* 55 */ .long sys_fcntl
- .long sys_ni_syscall /* was sys_mpx */
- .long sys_setpgid
- .long sys_ni_syscall /* was sys_ulimit */
- .long sys_ni_syscall /* was sys_olduname */
-/* 60 */ .long sys_umask
- .long sys_chroot
- .long sys_ustat
- .long sys_dup2
- .long sys_getppid
-/* 65 */ .long sys_getpgrp
- .long sys_setsid
- .long sys_sigaction
- .long sys_ni_syscall /* was sys_sgetmask */
- .long sys_ni_syscall /* was sys_ssetmask */
-/* 70 */ .long sys_setreuid16
- .long sys_setregid16
- .long sys_sigsuspend_wrapper
- .long sys_sigpending
- .long sys_sethostname
-/* 75 */ .long sys_setrlimit
- .long sys_old_getrlimit /* used by libc4 */
- .long sys_getrusage
- .long sys_gettimeofday
- .long sys_settimeofday
-/* 80 */ .long sys_getgroups16
- .long sys_setgroups16
- .long old_select /* used by libc4 */
- .long sys_symlink
- .long sys_ni_syscall /* was sys_lstat */
-/* 85 */ .long sys_readlink
- .long sys_uselib
- .long sys_swapon
- .long sys_reboot
- .long old_readdir /* used by libc4 */
-/* 90 */ .long old_mmap /* used by libc4 */
- .long sys_munmap
- .long sys_truncate
- .long sys_ftruncate
- .long sys_fchmod
-/* 95 */ .long sys_fchown16
- .long sys_getpriority
- .long sys_setpriority
- .long sys_ni_syscall /* was sys_profil */
- .long sys_statfs
-/* 100 */ .long sys_fstatfs
- .long sys_ni_syscall
- .long sys_socketcall
- .long sys_syslog
- .long sys_setitimer
-/* 105 */ .long sys_getitimer
- .long sys_newstat
- .long sys_newlstat
- .long sys_newfstat
- .long sys_ni_syscall /* was sys_uname */
-/* 110 */ .long sys_ni_syscall /* was sys_iopl */
- .long sys_vhangup
- .long sys_ni_syscall
- .long sys_syscall /* call a syscall */
- .long sys_wait4
-/* 115 */ .long sys_swapoff
- .long sys_sysinfo
- .long sys_ipc
- .long sys_fsync
- .long sys_sigreturn_wrapper
-/* 120 */ .long sys_clone_wapper
- .long sys_setdomainname
- .long sys_newuname
- .long sys_ni_syscall
- .long sys_adjtimex
-/* 125 */ .long sys_mprotect
- .long sys_sigprocmask
- .long sys_ni_syscall /* WAS: sys_create_module */
- .long sys_init_module
- .long sys_delete_module
-/* 130 */ .long sys_ni_syscall /* WAS: sys_get_kernel_syms */
- .long sys_quotactl
- .long sys_getpgid
- .long sys_fchdir
- .long sys_bdflush
-/* 135 */ .long sys_sysfs
- .long sys_personality
- .long sys_ni_syscall /* .long _sys_afs_syscall */
- .long sys_setfsuid16
- .long sys_setfsgid16
-/* 140 */ .long sys_llseek
- .long sys_getdents
- .long sys_select
- .long sys_flock
- .long sys_msync
-/* 145 */ .long sys_readv
- .long sys_writev
- .long sys_getsid
- .long sys_fdatasync
- .long sys_sysctl
-/* 150 */ .long sys_mlock
- .long sys_munlock
- .long sys_mlockall
- .long sys_munlockall
- .long sys_sched_setparam
-/* 155 */ .long sys_sched_getparam
- .long sys_sched_setscheduler
- .long sys_sched_getscheduler
- .long sys_sched_yield
- .long sys_sched_get_priority_max
-/* 160 */ .long sys_sched_get_priority_min
- .long sys_sched_rr_get_interval
- .long sys_nanosleep
- .long sys_arm_mremap
- .long sys_setresuid16
-/* 165 */ .long sys_getresuid16
- .long sys_ni_syscall
- .long sys_ni_syscall /* WAS: sys_query_module */
- .long sys_poll
- .long sys_nfsservctl
-/* 170 */ .long sys_setresgid16
- .long sys_getresgid16
- .long sys_prctl
- .long sys_rt_sigreturn_wrapper
- .long sys_rt_sigaction
-/* 175 */ .long sys_rt_sigprocmask
- .long sys_rt_sigpending
- .long sys_rt_sigtimedwait
- .long sys_rt_sigqueueinfo
- .long sys_rt_sigsuspend_wrapper
-/* 180 */ .long sys_pread64
- .long sys_pwrite64
- .long sys_chown16
- .long sys_getcwd
- .long sys_capget
-/* 185 */ .long sys_capset
- .long sys_sigaltstack_wrapper
- .long sys_sendfile
- .long sys_ni_syscall
- .long sys_ni_syscall
-/* 190 */ .long sys_vfork_wrapper
- .long sys_getrlimit
- .long sys_mmap2
- .long sys_truncate64
- .long sys_ftruncate64
-/* 195 */ .long sys_stat64
- .long sys_lstat64
- .long sys_fstat64
- .long sys_lchown
- .long sys_getuid
-/* 200 */ .long sys_getgid
- .long sys_geteuid
- .long sys_getegid
- .long sys_setreuid
- .long sys_setregid
-/* 205 */ .long sys_getgroups
- .long sys_setgroups
- .long sys_fchown
- .long sys_setresuid
- .long sys_getresuid
-/* 210 */ .long sys_setresgid
- .long sys_getresgid
- .long sys_chown
- .long sys_setuid
- .long sys_setgid
-/* 215 */ .long sys_setfsuid
- .long sys_setfsgid
- .long sys_getdents64
- .long sys_pivot_root
- .long sys_mincore
-/* 220 */ .long sys_madvise
- .long sys_fcntl64
- .long sys_ni_syscall /* TUX */
- .long sys_ni_syscall /* WAS: sys_security */
- .long sys_gettid
-/* 225 */ .long sys_readahead
- .long sys_setxattr
- .long sys_lsetxattr
- .long sys_fsetxattr
- .long sys_getxattr
-/* 230 */ .long sys_lgetxattr
- .long sys_fgetxattr
- .long sys_listxattr
- .long sys_llistxattr
- .long sys_flistxattr
-/* 235 */ .long sys_removexattr
- .long sys_lremovexattr
- .long sys_fremovexattr
- .long sys_tkill
-__syscall_end:
-
- .rept NR_syscalls - (__syscall_end - __syscall_start) / 4
- .long sys_ni_syscall
- .endr
-#endif
diff --git a/arch/arm26/kernel/compat.c b/arch/arm26/kernel/compat.c
deleted file mode 100644
index 21e966ff0aa..00000000000
--- a/arch/arm26/kernel/compat.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * linux/arch/arm26/kernel/compat.c
- *
- * Copyright (C) 2001 Russell King
- * 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * We keep the old params compatibility cruft in one place (here)
- * so we don't end up with lots of mess around other places.
- *
- * NOTE:
- * The old struct param_struct is deprecated, but it will be kept in
- * the kernel for 5 years from now (2001). This will allow boot loaders
- * to convert to the new struct tag way.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/page.h>
-
-//#include <asm/arch.h>
-//#include <asm/mach/irq.h>
-
-/*
- * Usage:
- * - do not go blindly adding fields, add them at the end
- * - when adding fields, don't rely on the address until
- * a patch from me has been released
- * - unused fields should be zero (for future expansion)
- * - this structure is relatively short-lived - only
- * guaranteed to contain useful data in setup_arch()
- *
- * This is the old deprecated way to pass parameters to the kernel
- */
-struct param_struct {
- union {
- struct {
- unsigned long page_size; /* 0 */
- unsigned long nr_pages; /* 4 */
- unsigned long ramdisk_size; /* 8 */
- unsigned long flags; /* 12 */
-#define FLAG_READONLY 1
-#define FLAG_RDLOAD 4
-#define FLAG_RDPROMPT 8
- unsigned long rootdev; /* 16 */
- unsigned long video_num_cols; /* 20 */
- unsigned long video_num_rows; /* 24 */
- unsigned long video_x; /* 28 */
- unsigned long video_y; /* 32 */
- unsigned long memc_control_reg; /* 36 */
- unsigned char sounddefault; /* 40 */
- unsigned char adfsdrives; /* 41 */
- unsigned char bytes_per_char_h; /* 42 */
- unsigned char bytes_per_char_v; /* 43 */
- unsigned long pages_in_bank[4]; /* 44 */
- unsigned long pages_in_vram; /* 60 */
- unsigned long initrd_start; /* 64 */
- unsigned long initrd_size; /* 68 */
- unsigned long rd_start; /* 72 */
- unsigned long system_rev; /* 76 */
- unsigned long system_serial_low; /* 80 */
- unsigned long system_serial_high; /* 84 */
- unsigned long mem_fclk_21285; /* 88 */
- } s;
- char unused[256];
- } u1;
- union {
- char paths[8][128];
- struct {
- unsigned long magic;
- char n[1024 - sizeof(unsigned long)];
- } s;
- } u2;
- char commandline[COMMAND_LINE_SIZE];
-};
-
-static struct tag * __init memtag(struct tag *tag, unsigned long start, unsigned long size)
-{
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_MEM;
- tag->hdr.size = tag_size(tag_mem32);
- tag->u.mem.size = size;
- tag->u.mem.start = start;
-
- return tag;
-}
-
-static void __init build_tag_list(struct param_struct *params, void *taglist)
-{
- struct tag *tag = taglist;
-
- if (params->u1.s.page_size != PAGE_SIZE) {
- printk(KERN_WARNING "Warning: bad configuration page, "
- "trying to continue\n");
- return;
- }
-
- printk(KERN_DEBUG "Converting old-style param struct to taglist\n");
-
- tag->hdr.tag = ATAG_CORE;
- tag->hdr.size = tag_size(tag_core);
- tag->u.core.flags = params->u1.s.flags & FLAG_READONLY;
- tag->u.core.pagesize = params->u1.s.page_size;
- tag->u.core.rootdev = params->u1.s.rootdev;
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_RAMDISK;
- tag->hdr.size = tag_size(tag_ramdisk);
- tag->u.ramdisk.flags = (params->u1.s.flags & FLAG_RDLOAD ? 1 : 0) |
- (params->u1.s.flags & FLAG_RDPROMPT ? 2 : 0);
- tag->u.ramdisk.size = params->u1.s.ramdisk_size;
- tag->u.ramdisk.start = params->u1.s.rd_start;
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_INITRD;
- tag->hdr.size = tag_size(tag_initrd);
- tag->u.initrd.start = params->u1.s.initrd_start;
- tag->u.initrd.size = params->u1.s.initrd_size;
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_SERIAL;
- tag->hdr.size = tag_size(tag_serialnr);
- tag->u.serialnr.low = params->u1.s.system_serial_low;
- tag->u.serialnr.high = params->u1.s.system_serial_high;
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_REVISION;
- tag->hdr.size = tag_size(tag_revision);
- tag->u.revision.rev = params->u1.s.system_rev;
-
- tag = memtag(tag, PHYS_OFFSET, params->u1.s.nr_pages * PAGE_SIZE);
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_ACORN;
- tag->hdr.size = tag_size(tag_acorn);
- tag->u.acorn.memc_control_reg = params->u1.s.memc_control_reg;
- tag->u.acorn.vram_pages = params->u1.s.pages_in_vram;
- tag->u.acorn.sounddefault = params->u1.s.sounddefault;
- tag->u.acorn.adfsdrives = params->u1.s.adfsdrives;
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_CMDLINE;
- tag->hdr.size = (strlen(params->commandline) + 3 +
- sizeof(struct tag_header)) >> 2;
- strcpy(tag->u.cmdline.cmdline, params->commandline);
-
- tag = tag_next(tag);
- tag->hdr.tag = ATAG_NONE;
- tag->hdr.size = 0;
-
- memmove(params, taglist, ((int)tag) - ((int)taglist) +
- sizeof(struct tag_header));
-}
-
-void __init convert_to_tag_list(struct tag *tags)
-{
- struct param_struct *params = (struct param_struct *)tags;
- build_tag_list(params, &params->u2);
-}
-
-void __init squash_mem_tags(struct tag *tag)
-{
- for (; tag->hdr.size; tag = tag_next(tag))
- if (tag->hdr.tag == ATAG_MEM)
- tag->hdr.tag = ATAG_NONE;
-}
diff --git a/arch/arm26/kernel/dma.c b/arch/arm26/kernel/dma.c
deleted file mode 100644
index 80b5a774d90..00000000000
--- a/arch/arm26/kernel/dma.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * linux/arch/arm26/kernel/dma.c
- *
- * Copyright (C) 1995-2000 Russell King
- * 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Front-end to the DMA handling. This handles the allocation/freeing
- * of DMA channels, and provides a unified interface to the machines
- * DMA facilities.
- */
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <linux/mman.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/errno.h>
-
-#include <asm/dma.h>
-
-DEFINE_SPINLOCK(dma_spin_lock);
-
-static dma_t dma_chan[MAX_DMA_CHANNELS];
-
-/*
- * Get dma list for /proc/dma
- */
-int get_dma_list(char *buf)
-{
- dma_t *dma;
- char *p = buf;
- int i;
-
- for (i = 0, dma = dma_chan; i < MAX_DMA_CHANNELS; i++, dma++)
- if (dma->lock)
- p += sprintf(p, "%2d: %14s %s\n", i,
- dma->d_ops->type, dma->device_id);
-
- return p - buf;
-}
-
-/*
- * Request DMA channel
- *
- * On certain platforms, we have to allocate an interrupt as well...
- */
-int request_dma(dmach_t channel, const char *device_id)
-{
- dma_t *dma = dma_chan + channel;
- int ret;
-
- if (channel >= MAX_DMA_CHANNELS || !dma->d_ops)
- goto bad_dma;
-
- if (xchg(&dma->lock, 1) != 0)
- goto busy;
-
- dma->device_id = device_id;
- dma->active = 0;
- dma->invalid = 1;
-
- ret = 0;
- if (dma->d_ops->request)
- ret = dma->d_ops->request(channel, dma);
-
- if (ret)
- xchg(&dma->lock, 0);
-
- return ret;
-
-bad_dma:
- printk(KERN_ERR "dma: trying to allocate DMA%d\n", channel);
- return -EINVAL;
-
-busy:
- return -EBUSY;
-}
-
-/*
- * Free DMA channel
- *
- * On certain platforms, we have to free interrupt as well...
- */
-void free_dma(dmach_t channel)
-{
- dma_t *dma = dma_chan + channel;
-
- if (channel >= MAX_DMA_CHANNELS || !dma->d_ops)
- goto bad_dma;
-
- if (dma->active) {
- printk(KERN_ERR "dma%d: freeing active DMA\n", channel);
- dma->d_ops->disable(channel, dma);
- dma->active = 0;
- }
-
- if (xchg(&dma->lock, 0) != 0) {
- if (dma->d_ops->free)
- dma->d_ops->free(channel, dma);
- return;
- }
-
- printk(KERN_ERR "dma%d: trying to free free DMA\n", channel);
- return;
-
-bad_dma:
- printk(KERN_ERR "dma: trying to free DMA%d\n", channel);
-}
-
-/* Set DMA Scatter-Gather list
- */
-void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg)
-{
- dma_t *dma = dma_chan + channel;
-
- if (dma->active)
- printk(KERN_ERR "dma%d: altering DMA SG while "
- "DMA active\n", channel);
-
- dma->sg = sg;
- dma->sgcount = nr_sg;
- dma->using_sg = 1;
- dma->invalid = 1;
-}
-
-/* Set DMA address
- *
- * Copy address to the structure, and set the invalid bit
- */
-void set_dma_addr (dmach_t channel, unsigned long physaddr)
-{
- dma_t *dma = dma_chan + channel;
-
- if (dma->active)
- printk(KERN_ERR "dma%d: altering DMA address while "
- "DMA active\n", channel);
-
- dma->sg = &dma->buf;
- dma->sgcount = 1;
- dma->buf.__address = (char *)physaddr;//FIXME - not pretty
- dma->using_sg = 0;
- dma->invalid = 1;
-}
-
-/* Set DMA byte count
- *
- * Copy address to the structure, and set the invalid bit
- */
-void set_dma_count (dmach_t channel, unsigned long count)
-{
- dma_t *dma = dma_chan + channel;
-
- if (dma->active)
- printk(KERN_ERR "dma%d: altering DMA count while "
- "DMA active\n", channel);
-
- dma->sg = &dma->buf;
- dma->sgcount = 1;
- dma->buf.length = count;
- dma->using_sg = 0;
- dma->invalid = 1;
-}
-
-/* Set DMA direction mode
- */
-void set_dma_mode (dmach_t channel, dmamode_t mode)
-{
- dma_t *dma = dma_chan + channel;
-
- if (dma->active)
- printk(KERN_ERR "dma%d: altering DMA mode while "
- "DMA active\n", channel);
-
- dma->dma_mode = mode;
- dma->invalid = 1;
-}
-
-/* Enable DMA channel
- */
-void enable_dma (dmach_t channel)
-{
- dma_t *dma = dma_chan + channel;
-
- if (!dma->lock)
- goto free_dma;
-
- if (dma->active == 0) {
- dma->active = 1;
- dma->d_ops->enable(channel, dma);
- }
- return;
-
-free_dma:
- printk(KERN_ERR "dma%d: trying to enable free DMA\n", channel);
- BUG();
-}
-
-/* Disable DMA channel
- */
-void disable_dma (dmach_t channel)
-{
- dma_t *dma = dma_chan + channel;
-
- if (!dma->lock)
- goto free_dma;
-
- if (dma->active == 1) {
- dma->active = 0;
- dma->d_ops->disable(channel, dma);
- }
- return;
-
-free_dma:
- printk(KERN_ERR "dma%d: trying to disable free DMA\n", channel);
- BUG();
-}
-
-/*
- * Is the specified DMA channel active?
- */
-int dma_channel_active(dmach_t channel)
-{
- return dma_chan[channel].active;
-}
-
-void set_dma_page(dmach_t channel, char pagenr)
-{
- printk(KERN_ERR "dma%d: trying to set_dma_page\n", channel);
-}
-
-void set_dma_speed(dmach_t channel, int cycle_ns)
-{
- dma_t *dma = dma_chan + channel;
- int ret = 0;
-
- if (dma->d_ops->setspeed)
- ret = dma->d_ops->setspeed(channel, dma, cycle_ns);
- dma->speed = ret;
-}
-
-int get_dma_residue(dmach_t channel)
-{
- dma_t *dma = dma_chan + channel;
- int ret = 0;
-
- if (dma->d_ops->residue)
- ret = dma->d_ops->residue(channel, dma);
-
- return ret;
-}
-
-void __init init_dma(void)
-{
- arch_dma_init(dma_chan);
-}
-
-EXPORT_SYMBOL(request_dma);
-EXPORT_SYMBOL(free_dma);
-EXPORT_SYMBOL(enable_dma);
-EXPORT_SYMBOL(disable_dma);
-EXPORT_SYMBOL(set_dma_addr);
-EXPORT_SYMBOL(set_dma_count);
-EXPORT_SYMBOL(set_dma_mode);
-EXPORT_SYMBOL(set_dma_page);
-EXPORT_SYMBOL(get_dma_residue);
-EXPORT_SYMBOL(set_dma_sg);
-EXPORT_SYMBOL(set_dma_speed);
-
-EXPORT_SYMBOL(dma_spin_lock);
diff --git a/arch/arm26/kernel/ecard.c b/arch/arm26/kernel/ecard.c
deleted file mode 100644
index e2bcefc91cc..00000000000
--- a/arch/arm26/kernel/ecard.c
+++ /dev/null
@@ -1,847 +0,0 @@
-/*
- * linux/arch/arm26/kernel/ecard.c
- *
- * Copyright 1995-2001 Russell King
- * Copyright 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Find all installed expansion cards, and handle interrupts from them.
- *
- * Created from information from Acorns RiscOS3 PRMs
- * 15-Jun-2003 IM Modified from ARM32 (RiscPC capable) version
- * 10-Jan-1999 RMK Run loaders in a simulated RISC OS environment.
- * 06-May-1997 RMK Added blacklist for cards whose loader doesn't work.
- * 12-Sep-1997 RMK Created new handling of interrupt enables/disables
- * - cards can now register their own routine to control
- * interrupts (recommended).
- * 29-Sep-1997 RMK Expansion card interrupt hardware not being re-enabled
- * on reset from Linux. (Caused cards not to respond
- * under RiscOS without hard reset).
- *
- */
-#define ECARD_C
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/device.h>
-#include <linux/init.h>
-
-#include <asm/dma.h>
-#include <asm/ecard.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mmu_context.h>
-#include <asm/irqchip.h>
-#include <asm/tlbflush.h>
-
-enum req {
- req_readbytes,
- req_reset
-};
-
-struct ecard_request {
- enum req req;
- ecard_t *ec;
- unsigned int address;
- unsigned int length;
- unsigned int use_loader;
- void *buffer;
-};
-
-struct expcard_blacklist {
- unsigned short manufacturer;
- unsigned short product;
- const char *type;
-};
-
-static ecard_t *cards;
-static ecard_t *slot_to_expcard[MAX_ECARDS];
-static unsigned int ectcr;
-
-/* List of descriptions of cards which don't have an extended
- * identification, or chunk directories containing a description.
- */
-static struct expcard_blacklist __initdata blacklist[] = {
- { MANU_ACORN, PROD_ACORN_ETHER1, "Acorn Ether1" }
-};
-
-asmlinkage extern int
-ecard_loader_reset(volatile unsigned char *pa, loader_t loader);
-asmlinkage extern int
-ecard_loader_read(int off, volatile unsigned char *pa, loader_t loader);
-
-static const struct ecard_id *
-ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec);
-
-static inline unsigned short
-ecard_getu16(unsigned char *v)
-{
- return v[0] | v[1] << 8;
-}
-
-static inline signed long
-ecard_gets24(unsigned char *v)
-{
- return v[0] | v[1] << 8 | v[2] << 16 | ((v[2] & 0x80) ? 0xff000000 : 0);
-}
-
-static inline ecard_t *
-slot_to_ecard(unsigned int slot)
-{
- return slot < MAX_ECARDS ? slot_to_expcard[slot] : NULL;
-}
-
-/* ===================== Expansion card daemon ======================== */
-/*
- * Since the loader programs on the expansion cards need to be run
- * in a specific environment, create a separate task with this
- * environment up, and pass requests to this task as and when we
- * need to.
- *
- * This should allow 99% of loaders to be called from Linux.
- *
- * From a security standpoint, we trust the card vendors. This
- * may be a misplaced trust.
- */
-#define BUS_ADDR(x) ((((unsigned long)(x)) << 2) + IO_BASE)
-#define POD_INT_ADDR(x) ((volatile unsigned char *)\
- ((BUS_ADDR((x)) - IO_BASE) + IO_START))
-
-static inline void ecard_task_reset(struct ecard_request *req)
-{
- struct expansion_card *ec = req->ec;
- if (ec->loader)
- ecard_loader_reset(POD_INT_ADDR(ec->podaddr), ec->loader);
-}
-
-static void
-ecard_task_readbytes(struct ecard_request *req)
-{
- unsigned char *buf = (unsigned char *)req->buffer;
- volatile unsigned char *base_addr =
- (volatile unsigned char *)POD_INT_ADDR(req->ec->podaddr);
- unsigned int len = req->length;
- unsigned int off = req->address;
-
- if (!req->use_loader || !req->ec->loader) {
- off *= 4;
- while (len--) {
- *buf++ = base_addr[off];
- off += 4;
- }
- } else {
- while(len--) {
- /*
- * The following is required by some
- * expansion card loader programs.
- */
- *(unsigned long *)0x108 = 0;
- *buf++ = ecard_loader_read(off++, base_addr,
- req->ec->loader);
- }
- }
-}
-
-static void ecard_do_request(struct ecard_request *req)
-{
- switch (req->req) {
- case req_readbytes:
- ecard_task_readbytes(req);
- break;
-
- case req_reset:
- ecard_task_reset(req);
- break;
- }
-}
-
-/*
- * On 26-bit processors, we don't need the kcardd thread to access the
- * expansion card loaders. We do it directly.
- */
-#define ecard_call(req) ecard_do_request(req)
-
-/* ======================= Mid-level card control ===================== */
-
-static void
-ecard_readbytes(void *addr, ecard_t *ec, int off, int len, int useld)
-{
- struct ecard_request req;
-
- req.req = req_readbytes;
- req.ec = ec;
- req.address = off;
- req.length = len;
- req.use_loader = useld;
- req.buffer = addr;
-
- ecard_call(&req);
-}
-
-int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num)
-{
- struct ex_chunk_dir excd;
- int index = 16;
- int useld = 0;
-
- if (!ec->cid.cd)
- return 0;
-
- while(1) {
- ecard_readbytes(&excd, ec, index, 8, useld);
- index += 8;
- if (c_id(&excd) == 0) {
- if (!useld && ec->loader) {
- useld = 1;
- index = 0;
- continue;
- }
- return 0;
- }
- if (c_id(&excd) == 0xf0) { /* link */
- index = c_start(&excd);
- continue;
- }
- if (c_id(&excd) == 0x80) { /* loader */
- if (!ec->loader) {
- ec->loader = kmalloc(c_len(&excd),
- GFP_KERNEL);
- if (ec->loader)
- ecard_readbytes(ec->loader, ec,
- (int)c_start(&excd),
- c_len(&excd), useld);
- else
- return 0;
- }
- continue;
- }
- if (c_id(&excd) == id && num-- == 0)
- break;
- }
-
- if (c_id(&excd) & 0x80) {
- switch (c_id(&excd) & 0x70) {
- case 0x70:
- ecard_readbytes((unsigned char *)excd.d.string, ec,
- (int)c_start(&excd), c_len(&excd),
- useld);
- break;
- case 0x00:
- break;
- }
- }
- cd->start_offset = c_start(&excd);
- memcpy(cd->d.string, excd.d.string, 256);
- return 1;
-}
-
-/* ======================= Interrupt control ============================ */
-
-static void ecard_def_irq_enable(ecard_t *ec, int irqnr)
-{
-}
-
-static void ecard_def_irq_disable(ecard_t *ec, int irqnr)
-{
-}
-
-static int ecard_def_irq_pending(ecard_t *ec)
-{
- return !ec->irqmask || ec->irqaddr[0] & ec->irqmask;
-}
-
-static void ecard_def_fiq_enable(ecard_t *ec, int fiqnr)
-{
- panic("ecard_def_fiq_enable called - impossible");
-}
-
-static void ecard_def_fiq_disable(ecard_t *ec, int fiqnr)
-{
- panic("ecard_def_fiq_disable called - impossible");
-}
-
-static int ecard_def_fiq_pending(ecard_t *ec)
-{
- return !ec->fiqmask || ec->fiqaddr[0] & ec->fiqmask;
-}
-
-static expansioncard_ops_t ecard_default_ops = {
- ecard_def_irq_enable,
- ecard_def_irq_disable,
- ecard_def_irq_pending,
- ecard_def_fiq_enable,
- ecard_def_fiq_disable,
- ecard_def_fiq_pending
-};
-
-/*
- * Enable and disable interrupts from expansion cards.
- * (interrupts are disabled for these functions).
- *
- * They are not meant to be called directly, but via enable/disable_irq.
- */
-static void ecard_irq_unmask(unsigned int irqnr)
-{
- ecard_t *ec = slot_to_ecard(irqnr - 32);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->claimed && ec->ops->irqenable)
- ec->ops->irqenable(ec, irqnr);
- else
- printk(KERN_ERR "ecard: rejecting request to "
- "enable IRQs for %d\n", irqnr);
- }
-}
-
-static void ecard_irq_mask(unsigned int irqnr)
-{
- ecard_t *ec = slot_to_ecard(irqnr - 32);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->ops && ec->ops->irqdisable)
- ec->ops->irqdisable(ec, irqnr);
- }
-}
-
-static struct irqchip ecard_chip = {
- .ack = ecard_irq_mask,
- .mask = ecard_irq_mask,
- .unmask = ecard_irq_unmask,
-};
-
-void ecard_enablefiq(unsigned int fiqnr)
-{
- ecard_t *ec = slot_to_ecard(fiqnr);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->claimed && ec->ops->fiqenable)
- ec->ops->fiqenable(ec, fiqnr);
- else
- printk(KERN_ERR "ecard: rejecting request to "
- "enable FIQs for %d\n", fiqnr);
- }
-}
-
-void ecard_disablefiq(unsigned int fiqnr)
-{
- ecard_t *ec = slot_to_ecard(fiqnr);
-
- if (ec) {
- if (!ec->ops)
- ec->ops = &ecard_default_ops;
-
- if (ec->ops->fiqdisable)
- ec->ops->fiqdisable(ec, fiqnr);
- }
-}
-
-static void
-ecard_dump_irq_state(ecard_t *ec)
-{
- printk(" %d: %sclaimed, ",
- ec->slot_no,
- ec->claimed ? "" : "not ");
-
- if (ec->ops && ec->ops->irqpending &&
- ec->ops != &ecard_default_ops)
- printk("irq %spending\n",
- ec->ops->irqpending(ec) ? "" : "not ");
- else
- printk("irqaddr %p, mask = %02X, status = %02X\n",
- ec->irqaddr, ec->irqmask, *ec->irqaddr);
-}
-
-static void ecard_check_lockup(struct irqdesc *desc)
-{
- static int last, lockup;
- ecard_t *ec;
-
- /*
- * If the timer interrupt has not run since the last million
- * unrecognised expansion card interrupts, then there is
- * something seriously wrong. Disable the expansion card
- * interrupts so at least we can continue.
- *
- * Maybe we ought to start a timer to re-enable them some time
- * later?
- */
- if (last == jiffies) {
- lockup += 1;
- if (lockup > 1000000) {
- printk(KERN_ERR "\nInterrupt lockup detected - "
- "disabling all expansion card interrupts\n");
-
- desc->chip->mask(IRQ_EXPANSIONCARD);
-
- printk("Expansion card IRQ state:\n");
-
- for (ec = cards; ec; ec = ec->next)
- ecard_dump_irq_state(ec);
- }
- } else
- lockup = 0;
-
- /*
- * If we did not recognise the source of this interrupt,
- * warn the user, but don't flood the user with these messages.
- */
- if (!last || time_after(jiffies, (unsigned long)(last + 5*HZ))) {
- last = jiffies;
- printk(KERN_WARNING "Unrecognised interrupt from backplane\n");
- }
-}
-
-static void
-ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- ecard_t *ec;
- int called = 0;
-
- desc->chip->mask(irq);
- for (ec = cards; ec; ec = ec->next) {
- int pending;
-
- if (!ec->claimed || ec->irq == NO_IRQ)
- continue;
-
- if (ec->ops && ec->ops->irqpending)
- pending = ec->ops->irqpending(ec);
- else
- pending = ecard_default_ops.irqpending(ec);
-
- if (pending) {
- struct irqdesc *d = irq_desc + ec->irq;
- d->handle(ec->irq, d, regs);
- called ++;
- }
- }
- desc->chip->unmask(irq);
-
- if (called == 0)
- ecard_check_lockup(desc);
-}
-
-#define ecard_irqexp_handler NULL
-#define ecard_probeirqhw() (0)
-
-unsigned int ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
-{
- unsigned long address = 0;
- int slot = ec->slot_no;
-
- ectcr &= ~(1 << slot);
-
- switch (type) {
- case ECARD_MEMC:
- address = IO_EC_MEMC_BASE + (slot << 12);
- break;
-
- case ECARD_IOC:
- address = IO_EC_IOC_BASE + (slot << 12) + (speed << 17);
- break;
-
- default:
- break;
- }
-
- return address;
-}
-
-static int ecard_prints(char *buffer, ecard_t *ec)
-{
- char *start = buffer;
-
- buffer += sprintf(buffer, " %d: ", ec->slot_no);
-
- if (ec->cid.id == 0) {
- struct in_chunk_dir incd;
-
- buffer += sprintf(buffer, "[%04X:%04X] ",
- ec->cid.manufacturer, ec->cid.product);
-
- if (!ec->card_desc && ec->cid.cd &&
- ecard_readchunk(&incd, ec, 0xf5, 0)) {
- ec->card_desc = kmalloc(strlen(incd.d.string)+1, GFP_KERNEL);
-
- if (ec->card_desc)
- strcpy((char *)ec->card_desc, incd.d.string);
- }
-
- buffer += sprintf(buffer, "%s\n", ec->card_desc ? ec->card_desc : "*unknown*");
- } else
- buffer += sprintf(buffer, "Simple card %d\n", ec->cid.id);
-
- return buffer - start;
-}
-
-static int get_ecard_dev_info(char *buf, char **start, off_t pos, int count)
-{
- ecard_t *ec = cards;
- off_t at = 0;
- int len, cnt;
-
- cnt = 0;
- while (ec && count > cnt) {
- len = ecard_prints(buf, ec);
- at += len;
- if (at >= pos) {
- if (!*start) {
- *start = buf + (pos - (at - len));
- cnt = at - pos;
- } else
- cnt += len;
- buf += len;
- }
- ec = ec->next;
- }
- return (count > cnt) ? cnt : count;
-}
-
-static struct proc_dir_entry *proc_bus_ecard_dir = NULL;
-
-static void ecard_proc_init(void)
-{
- proc_bus_ecard_dir = proc_mkdir("ecard", proc_bus);
- create_proc_info_entry("devices", 0, proc_bus_ecard_dir,
- get_ecard_dev_info);
-}
-
-#define ec_set_resource(ec,nr,st,sz,flg) \
- do { \
- (ec)->resource[nr].name = ec->dev.bus_id; \
- (ec)->resource[nr].start = st; \
- (ec)->resource[nr].end = (st) + (sz) - 1; \
- (ec)->resource[nr].flags = flg; \
- } while (0)
-
-static void __init ecard_init_resources(struct expansion_card *ec)
-{
- unsigned long base = PODSLOT_IOC0_BASE;
- unsigned int slot = ec->slot_no;
- int i;
-
- ec_set_resource(ec, ECARD_RES_MEMC,
- PODSLOT_MEMC_BASE + (slot << 14),
- PODSLOT_MEMC_SIZE, IORESOURCE_MEM);
-
- for (i = 0; i < ECARD_RES_IOCSYNC - ECARD_RES_IOCSLOW; i++) {
- ec_set_resource(ec, i + ECARD_RES_IOCSLOW,
- base + (slot << 14) + (i << 19),
- PODSLOT_IOC_SIZE, IORESOURCE_MEM);
- }
-
- for (i = 0; i < ECARD_NUM_RESOURCES; i++) {
- if (ec->resource[i].start &&
- request_resource(&iomem_resource, &ec->resource[i])) {
- printk(KERN_ERR "%s: resource(s) not available\n",
- ec->dev.bus_id);
- ec->resource[i].end -= ec->resource[i].start;
- ec->resource[i].start = 0;
- }
- }
-}
-
-static ssize_t ecard_show_irq(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->irq);
-}
-
-static ssize_t ecard_show_vendor(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->cid.manufacturer);
-}
-
-static ssize_t ecard_show_device(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->cid.product);
-}
-
-static ssize_t ecard_show_dma(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- return sprintf(buf, "%u\n", ec->dma);
-}
-
-static ssize_t ecard_show_resources(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- char *str = buf;
- int i;
-
- for (i = 0; i < ECARD_NUM_RESOURCES; i++)
- str += sprintf(str, "%08lx %08lx %08lx\n",
- ec->resource[i].start,
- ec->resource[i].end,
- ec->resource[i].flags);
-
- return str - buf;
-}
-
-static DEVICE_ATTR(irq, S_IRUGO, ecard_show_irq, NULL);
-static DEVICE_ATTR(vendor, S_IRUGO, ecard_show_vendor, NULL);
-static DEVICE_ATTR(device, S_IRUGO, ecard_show_device, NULL);
-static DEVICE_ATTR(dma, S_IRUGO, ecard_show_dma, NULL);
-static DEVICE_ATTR(resource, S_IRUGO, ecard_show_resources, NULL);
-
-/*
- * Probe for an expansion card.
- *
- * If bit 1 of the first byte of the card is set, then the
- * card does not exist.
- */
-static int __init
-ecard_probe(int slot, card_type_t type)
-{
- ecard_t **ecp;
- ecard_t *ec;
- struct ex_ecid cid;
- int i, rc = -ENOMEM;
-
- ec = kzalloc(sizeof(ecard_t), GFP_KERNEL);
- if (!ec)
- goto nomem;
-
- ec->slot_no = slot;
- ec->type = type;
- ec->irq = NO_IRQ;
- ec->fiq = NO_IRQ;
- ec->dma = NO_DMA;
- ec->card_desc = NULL;
- ec->ops = &ecard_default_ops;
-
- rc = -ENODEV;
- if ((ec->podaddr = ecard_address(ec, type, ECARD_SYNC)) == 0)
- goto nodev;
-
- cid.r_zero = 1;
- ecard_readbytes(&cid, ec, 0, 16, 0);
- if (cid.r_zero)
- goto nodev;
-
- ec->cid.id = cid.r_id;
- ec->cid.cd = cid.r_cd;
- ec->cid.is = cid.r_is;
- ec->cid.w = cid.r_w;
- ec->cid.manufacturer = ecard_getu16(cid.r_manu);
- ec->cid.product = ecard_getu16(cid.r_prod);
- ec->cid.country = cid.r_country;
- ec->cid.irqmask = cid.r_irqmask;
- ec->cid.irqoff = ecard_gets24(cid.r_irqoff);
- ec->cid.fiqmask = cid.r_fiqmask;
- ec->cid.fiqoff = ecard_gets24(cid.r_fiqoff);
- ec->fiqaddr =
- ec->irqaddr = (unsigned char *)ioaddr(ec->podaddr);
-
- if (ec->cid.is) {
- ec->irqmask = ec->cid.irqmask;
- ec->irqaddr += ec->cid.irqoff;
- ec->fiqmask = ec->cid.fiqmask;
- ec->fiqaddr += ec->cid.fiqoff;
- } else {
- ec->irqmask = 1;
- ec->fiqmask = 4;
- }
-
- for (i = 0; i < ARRAY_SIZE(blacklist); i++)
- if (blacklist[i].manufacturer == ec->cid.manufacturer &&
- blacklist[i].product == ec->cid.product) {
- ec->card_desc = blacklist[i].type;
- break;
- }
-
- snprintf(ec->dev.bus_id, sizeof(ec->dev.bus_id), "ecard%d", slot);
- ec->dev.parent = NULL;
- ec->dev.bus = &ecard_bus_type;
- ec->dev.dma_mask = &ec->dma_mask;
- ec->dma_mask = (u64)0xffffffff;
-
- ecard_init_resources(ec);
-
- /*
- * hook the interrupt handlers
- */
- ec->irq = 32 + slot;
- set_irq_chip(ec->irq, &ecard_chip);
- set_irq_handler(ec->irq, do_level_IRQ);
- set_irq_flags(ec->irq, IRQF_VALID);
-
- for (ecp = &cards; *ecp; ecp = &(*ecp)->next);
-
- *ecp = ec;
- slot_to_expcard[slot] = ec;
-
- device_register(&ec->dev);
- device_create_file(&ec->dev, &dev_attr_dma);
- device_create_file(&ec->dev, &dev_attr_irq);
- device_create_file(&ec->dev, &dev_attr_resource);
- device_create_file(&ec->dev, &dev_attr_vendor);
- device_create_file(&ec->dev, &dev_attr_device);
-
- return 0;
-
-nodev:
- kfree(ec);
-nomem:
- return rc;
-}
-
-/*
- * Initialise the expansion card system.
- * Locate all hardware - interrupt management and
- * actual cards.
- */
-static int __init ecard_init(void)
-{
- int slot, irqhw;
-
- printk("Probing expansion cards\n");
-
- for (slot = 0; slot < MAX_ECARDS; slot ++) {
- ecard_probe(slot, ECARD_IOC);
- }
-
- irqhw = ecard_probeirqhw();
-
- set_irq_chained_handler(IRQ_EXPANSIONCARD,
- irqhw ? ecard_irqexp_handler : ecard_irq_handler);
-
- ecard_proc_init();
-
- return 0;
-}
-
-subsys_initcall(ecard_init);
-
-/*
- * ECARD "bus"
- */
-static const struct ecard_id *
-ecard_match_device(const struct ecard_id *ids, struct expansion_card *ec)
-{
- int i;
-
- for (i = 0; ids[i].manufacturer != 65535; i++)
- if (ec->cid.manufacturer == ids[i].manufacturer &&
- ec->cid.product == ids[i].product)
- return ids + i;
-
- return NULL;
-}
-
-static int ecard_drv_probe(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
- const struct ecard_id *id;
- int ret;
-
- id = ecard_match_device(drv->id_table, ec);
-
- ecard_claim(ec);
- ret = drv->probe(ec, id);
- if (ret)
- ecard_release(ec);
- return ret;
-}
-
-static int ecard_drv_remove(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
-
- drv->remove(ec);
- ecard_release(ec);
-
- return 0;
-}
-
-/*
- * Before rebooting, we must make sure that the expansion card is in a
- * sensible state, so it can be re-detected. This means that the first
- * page of the ROM must be visible. We call the expansion cards reset
- * handler, if any.
- */
-static void ecard_drv_shutdown(struct device *dev)
-{
- struct expansion_card *ec = ECARD_DEV(dev);
- struct ecard_driver *drv = ECARD_DRV(dev->driver);
- struct ecard_request req;
-
- if (drv->shutdown)
- drv->shutdown(ec);
- ecard_release(ec);
- req.req = req_reset;
- req.ec = ec;
- ecard_call(&req);
-}
-
-int ecard_register_driver(struct ecard_driver *drv)
-{
- drv->drv.bus = &ecard_bus_type;
- drv->drv.probe = ecard_drv_probe;
- drv->drv.remove = ecard_drv_remove;
- drv->drv.shutdown = ecard_drv_shutdown;
-
- return driver_register(&drv->drv);
-}
-
-void ecard_remove_driver(struct ecard_driver *drv)
-{
- driver_unregister(&drv->drv);
-}
-
-static int ecard_match(struct device *_dev, struct device_driver *_drv)
-{
- struct expansion_card *ec = ECARD_DEV(_dev);
- struct ecard_driver *drv = ECARD_DRV(_drv);
- int ret;
-
- if (drv->id_table) {
- ret = ecard_match_device(drv->id_table, ec) != NULL;
- } else {
- ret = ec->cid.id == drv->id;
- }
-
- return ret;
-}
-
-struct bus_type ecard_bus_type = {
- .name = "ecard",
- .match = ecard_match,
-};
-
-static int ecard_bus_init(void)
-{
- return bus_register(&ecard_bus_type);
-}
-
-postcore_initcall(ecard_bus_init);
-
-EXPORT_SYMBOL(ecard_readchunk);
-EXPORT_SYMBOL(ecard_address);
-EXPORT_SYMBOL(ecard_register_driver);
-EXPORT_SYMBOL(ecard_remove_driver);
-EXPORT_SYMBOL(ecard_bus_type);
diff --git a/arch/arm26/kernel/entry.S b/arch/arm26/kernel/entry.S
deleted file mode 100644
index 7ffcc6e4770..00000000000
--- a/arch/arm26/kernel/entry.S
+++ /dev/null
@@ -1,951 +0,0 @@
-/* arch/arm26/kernel/entry.S
- *
- * Assembled from chunks of code in arch/arm
- *
- * Copyright (C) 2003 Ian Molton
- * Based on the work of RMK.
- *
- */
-
-#include <linux/linkage.h>
-
-#include <asm/assembler.h>
-#include <asm/asm-offsets.h>
-#include <asm/errno.h>
-#include <asm/hardware.h>
-#include <asm/sysirq.h>
-#include <asm/thread_info.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-
- .macro zero_fp
-#ifndef CONFIG_NO_FRAME_POINTER
- mov fp, #0
-#endif
- .endm
-
- .text
-
-@ Bad Abort numbers
-@ -----------------
-@
-#define BAD_PREFETCH 0
-#define BAD_DATA 1
-#define BAD_ADDREXCPTN 2
-#define BAD_IRQ 3
-#define BAD_UNDEFINSTR 4
-
-@ OS version number used in SWIs
-@ RISC OS is 0
-@ RISC iX is 8
-@
-#define OS_NUMBER 9
-#define ARMSWI_OFFSET 0x000f0000
-
-@
-@ Stack format (ensured by USER_* and SVC_*)
-@ PSR and PC are comined on arm26
-@
-
-#define S_OFF 8
-
-#define S_OLD_R0 64
-#define S_PC 60
-#define S_LR 56
-#define S_SP 52
-#define S_IP 48
-#define S_FP 44
-#define S_R10 40
-#define S_R9 36
-#define S_R8 32
-#define S_R7 28
-#define S_R6 24
-#define S_R5 20
-#define S_R4 16
-#define S_R3 12
-#define S_R2 8
-#define S_R1 4
-#define S_R0 0
-
- .macro save_user_regs
- str r0, [sp, #-4]! @ Store SVC r0
- str lr, [sp, #-4]! @ Store user mode PC
- sub sp, sp, #15*4
- stmia sp, {r0 - lr}^ @ Store the other user-mode regs
- mov r0, r0
- .endm
-
- .macro slow_restore_user_regs
- ldmia sp, {r0 - lr}^ @ restore the user regs not including PC
- mov r0, r0
- ldr lr, [sp, #15*4] @ get user PC
- add sp, sp, #15*4+8 @ free stack
- movs pc, lr @ return
- .endm
-
- .macro fast_restore_user_regs
- add sp, sp, #S_OFF
- ldmib sp, {r1 - lr}^
- mov r0, r0
- ldr lr, [sp, #15*4]
- add sp, sp, #15*4+8
- movs pc, lr
- .endm
-
- .macro save_svc_regs
- str sp, [sp, #-16]!
- str lr, [sp, #8]
- str lr, [sp, #4]
- stmfd sp!, {r0 - r12}
- mov r0, #-1
- str r0, [sp, #S_OLD_R0]
- zero_fp
- .endm
-
- .macro save_svc_regs_irq
- str sp, [sp, #-16]!
- str lr, [sp, #4]
- ldr lr, .LCirq
- ldr lr, [lr]
- str lr, [sp, #8]
- stmfd sp!, {r0 - r12}
- mov r0, #-1
- str r0, [sp, #S_OLD_R0]
- zero_fp
- .endm
-
- .macro restore_svc_regs
- ldmfd sp, {r0 - pc}^
- .endm
-
- .macro mask_pc, rd, rm
- bic \rd, \rm, #PCMASK
- .endm
-
- .macro disable_irqs, temp
- mov \temp, pc
- orr \temp, \temp, #PSR_I_BIT
- teqp \temp, #0
- .endm
-
- .macro enable_irqs, temp
- mov \temp, pc
- and \temp, \temp, #~PSR_I_BIT
- teqp \temp, #0
- .endm
-
- .macro initialise_traps_extra
- .endm
-
- .macro get_thread_info, rd
- mov \rd, sp, lsr #13
- mov \rd, \rd, lsl #13
- .endm
-
-/*
- * These are the registers used in the syscall handler, and allow us to
- * have in theory up to 7 arguments to a function - r0 to r6.
- *
- * Note that tbl == why is intentional.
- *
- * We must set at least "tsk" and "why" when calling ret_with_reschedule.
- */
-scno .req r7 @ syscall number
-tbl .req r8 @ syscall table pointer
-why .req r8 @ Linux syscall (!= 0)
-tsk .req r9 @ current thread_info
-
-/*
- * Get the system call number.
- */
- .macro get_scno
- mask_pc lr, lr
- ldr scno, [lr, #-4] @ get SWI instruction
- .endm
-/*
- * -----------------------------------------------------------------------
- */
-
-/*
- * We rely on the fact that R0 is at the bottom of the stack (due to
- * slow/fast restore user regs).
- */
-#if S_R0 != 0
-#error "Please fix"
-#endif
-
-/*
- * This is the fast syscall return path. We do as little as
- * possible here, and this includes saving r0 back into the SVC
- * stack.
- */
-ret_fast_syscall:
- disable_irqs r1 @ disable interrupts
- ldr r1, [tsk, #TI_FLAGS]
- tst r1, #_TIF_WORK_MASK
- bne fast_work_pending
- fast_restore_user_regs
-
-/*
- * Ok, we need to do extra processing, enter the slow path.
- */
-fast_work_pending:
- str r0, [sp, #S_R0+S_OFF]! @ returned r0
-work_pending:
- tst r1, #_TIF_NEED_RESCHED
- bne work_resched
- tst r1, #_TIF_SIGPENDING
- beq no_work_pending
- mov r0, sp @ 'regs'
- mov r2, why @ 'syscall'
- bl do_notify_resume
- disable_irqs r1 @ disable interrupts
- b no_work_pending
-
-work_resched:
- bl schedule
-/*
- * "slow" syscall return path. "why" tells us if this was a real syscall.
- */
-ENTRY(ret_to_user)
-ret_slow_syscall:
- disable_irqs r1 @ disable interrupts
- ldr r1, [tsk, #TI_FLAGS]
- tst r1, #_TIF_WORK_MASK
- bne work_pending
-no_work_pending:
- slow_restore_user_regs
-
-/*
- * This is how we return from a fork.
- */
-ENTRY(ret_from_fork)
- bl schedule_tail
- get_thread_info tsk
- ldr r1, [tsk, #TI_FLAGS] @ check for syscall tracing
- mov why, #1
- tst r1, #_TIF_SYSCALL_TRACE @ are we tracing syscalls?
- beq ret_slow_syscall
- mov r1, sp
- mov r0, #1 @ trace exit [IP = 1]
- bl syscall_trace
- b ret_slow_syscall
-
-// FIXME - is this strictly necessary?
-#include "calls.S"
-
-/*=============================================================================
- * SWI handler
- *-----------------------------------------------------------------------------
- */
-
- .align 5
-ENTRY(vector_swi)
- save_user_regs
- zero_fp
- get_scno
-
- enable_irqs ip
-
- str r4, [sp, #-S_OFF]! @ push fifth arg
-
- get_thread_info tsk
- ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing
- bic scno, scno, #0xff000000 @ mask off SWI op-code
- eor scno, scno, #OS_NUMBER << 20 @ check OS number
- adr tbl, sys_call_table @ load syscall table pointer
- tst ip, #_TIF_SYSCALL_TRACE @ are we tracing syscalls?
- bne __sys_trace
-
- adral lr, ret_fast_syscall @ set return address
- orral lr, lr, #PSR_I_BIT | MODE_SVC26 @ Force SVC mode on return
- cmp scno, #NR_syscalls @ check upper syscall limit
- ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine
-
- add r1, sp, #S_OFF
-2: mov why, #0 @ no longer a real syscall
- cmp scno, #ARMSWI_OFFSET
- eor r0, scno, #OS_NUMBER << 20 @ put OS number back
- bcs arm_syscall
- b sys_ni_syscall @ not private func
-
- /*
- * This is the really slow path. We're going to be doing
- * context switches, and waiting for our parent to respond.
- */
-__sys_trace:
- add r1, sp, #S_OFF
- mov r0, #0 @ trace entry [IP = 0]
- bl syscall_trace
-
- adral lr, __sys_trace_return @ set return address
- orral lr, lr, #PSR_I_BIT | MODE_SVC26 @ Force SVC mode on return
- add r1, sp, #S_R0 + S_OFF @ pointer to regs
- cmp scno, #NR_syscalls @ check upper syscall limit
- ldmccia r1, {r0 - r3} @ have to reload r0 - r3
- ldrcc pc, [tbl, scno, lsl #2] @ call sys_* routine
- b 2b
-
-__sys_trace_return:
- str r0, [sp, #S_R0 + S_OFF]! @ save returned r0
- mov r1, sp
- mov r0, #1 @ trace exit [IP = 1]
- bl syscall_trace
- b ret_slow_syscall
-
- .align 5
-
- .type sys_call_table, #object
-ENTRY(sys_call_table)
-#include "calls.S"
-
-/*============================================================================
- * Special system call wrappers
- */
-@ r0 = syscall number
-@ r5 = syscall table
- .type sys_syscall, #function
-sys_syscall:
- eor scno, r0, #OS_NUMBER << 20
- cmp scno, #NR_syscalls @ check range
- stmleia sp, {r5, r6} @ shuffle args
- movle r0, r1
- movle r1, r2
- movle r2, r3
- movle r3, r4
- ldrle pc, [tbl, scno, lsl #2]
- b sys_ni_syscall
-
-sys_fork_wrapper:
- add r0, sp, #S_OFF
- b sys_fork
-
-sys_vfork_wrapper:
- add r0, sp, #S_OFF
- b sys_vfork
-
-sys_execve_wrapper:
- add r3, sp, #S_OFF
- b sys_execve
-
-sys_clone_wapper:
- add r2, sp, #S_OFF
- b sys_clone
-
-sys_sigsuspend_wrapper:
- add r3, sp, #S_OFF
- b sys_sigsuspend
-
-sys_rt_sigsuspend_wrapper:
- add r2, sp, #S_OFF
- b sys_rt_sigsuspend
-
-sys_sigreturn_wrapper:
- add r0, sp, #S_OFF
- b sys_sigreturn
-
-sys_rt_sigreturn_wrapper:
- add r0, sp, #S_OFF
- b sys_rt_sigreturn
-
-sys_sigaltstack_wrapper:
- ldr r2, [sp, #S_OFF + S_SP]
- b do_sigaltstack
-
-/*
- * Note: off_4k (r5) is always units of 4K. If we can't do the requested
- * offset, we return EINVAL. FIXME - this lost some stuff from arm32 to
- * ifdefs. check it out.
- */
-sys_mmap2:
- tst r5, #((1 << (PAGE_SHIFT - 12)) - 1)
- moveq r5, r5, lsr #PAGE_SHIFT - 12
- streq r5, [sp, #4]
- beq do_mmap2
- mov r0, #-EINVAL
- RETINSTR(mov,pc, lr)
-
-/*
- * Design issues:
- * - We have several modes that each vector can be called from,
- * each with its own set of registers. On entry to any vector,
- * we *must* save the registers used in *that* mode.
- *
- * - This code must be as fast as possible.
- *
- * There are a few restrictions on the vectors:
- * - the SWI vector cannot be called from *any* non-user mode
- *
- * - the FP emulator is *never* called from *any* non-user mode undefined
- * instruction.
- *
- */
-
- .text
-
- .macro handle_irq
-1: mov r4, #IOC_BASE
- ldrb r6, [r4, #0x24] @ get high priority first
- adr r5, irq_prio_h
- teq r6, #0
- ldreqb r6, [r4, #0x14] @ get low priority
- adreq r5, irq_prio_l
-
- teq r6, #0 @ If an IRQ happened...
- ldrneb r0, [r5, r6] @ get IRQ number
- movne r1, sp @ get struct pt_regs
- adrne lr, 1b @ Set return address to 1b
- orrne lr, lr, #PSR_I_BIT | MODE_SVC26 @ (and force SVC mode)
- bne asm_do_IRQ @ process IRQ (if asserted)
- .endm
-
-
-/*
- * Interrupt table (incorporates priority)
- */
- .macro irq_prio_table
-irq_prio_l: .byte 0, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
- .byte 4, 0, 1, 0, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3
- .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
- .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
- .byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
- .byte 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3
- .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
- .byte 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
- .byte 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
-irq_prio_h: .byte 0, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 12, 8, 9, 8,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 14,14,14,14,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 15,15,15,15,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .byte 13,13,13,13,10,10,10,10,11,11,11,11,10,10,10,10
- .endm
-
-#if 1
-/*
- * Uncomment these if you wish to get more debugging into about data aborts.
- * FIXME - I bet we can find a way to encode these and keep performance.
- */
-#define FAULT_CODE_LDRSTRPOST 0x80
-#define FAULT_CODE_LDRSTRPRE 0x40
-#define FAULT_CODE_LDRSTRREG 0x20
-#define FAULT_CODE_LDMSTM 0x10
-#define FAULT_CODE_LDCSTC 0x08
-#endif
-#define FAULT_CODE_PREFETCH 0x04
-#define FAULT_CODE_WRITE 0x02
-#define FAULT_CODE_FORCECOW 0x01
-
-/*=============================================================================
- * Undefined FIQs
- *-----------------------------------------------------------------------------
- */
-_unexp_fiq: ldr sp, .LCfiq
- mov r12, #IOC_BASE
- strb r12, [r12, #0x38] @ Disable FIQ register
- teqp pc, #PSR_I_BIT | PSR_F_BIT | MODE_SVC26
- mov r0, r0
- stmfd sp!, {r0 - r3, ip, lr}
- adr r0, Lfiqmsg
- bl printk
- ldmfd sp!, {r0 - r3, ip, lr}
- teqp pc, #PSR_I_BIT | PSR_F_BIT | MODE_FIQ26
- mov r0, r0
- movs pc, lr
-
-Lfiqmsg: .ascii "*** Unexpected FIQ\n\0"
- .align
-
-.LCfiq: .word __temp_fiq
-.LCirq: .word __temp_irq
-
-/*=============================================================================
- * Undefined instruction handler
- *-----------------------------------------------------------------------------
- * Handles floating point instructions
- */
-vector_undefinstr:
- tst lr, #MODE_SVC26 @ did we come from a non-user mode?
- bne __und_svc @ yes - deal with it.
-/* Otherwise, fall through for the user-space (common) case. */
- save_user_regs
- zero_fp @ zero frame pointer
- teqp pc, #PSR_I_BIT | MODE_SVC26 @ disable IRQs
-.Lbug_undef:
- ldr r4, .LC2
- ldr pc, [r4] @ Call FP module entry point
-/* FIXME - should we trap for a null pointer here? */
-
-/* The SVC mode case */
-__und_svc: save_svc_regs @ Non-user mode
- mask_pc r0, lr
- and r2, lr, #3
- sub r0, r0, #4
- mov r1, sp
- bl do_undefinstr
- restore_svc_regs
-
-/* We get here if the FP emulator doesnt handle the undef instr.
- * If the insn WAS handled, the emulator jumps to ret_from_exception by itself/
- */
- .globl fpundefinstr
-fpundefinstr:
- mov r0, lr
- mov r1, sp
- teqp pc, #MODE_SVC26
- bl do_undefinstr
- b ret_from_exception @ Normal FP exit
-
-#if defined CONFIG_FPE_NWFPE || defined CONFIG_FPE_FASTFPE
- /* The FPE is always present */
- .equ fpe_not_present, 0
-#else
-/* We get here if an undefined instruction happens and the floating
- * point emulator is not present. If the offending instruction was
- * a WFS, we just perform a normal return as if we had emulated the
- * operation. This is a hack to allow some basic userland binaries
- * to run so that the emulator module proper can be loaded. --philb
- * FIXME - probably a broken useless hack...
- */
-fpe_not_present:
- adr r10, wfs_mask_data
- ldmia r10, {r4, r5, r6, r7, r8}
- ldr r10, [sp, #S_PC] @ Load PC
- sub r10, r10, #4
- mask_pc r10, r10
- ldrt r10, [r10] @ get instruction
- and r5, r10, r5
- teq r5, r4 @ Is it WFS?
- beq ret_from_exception
- and r5, r10, r8
- teq r5, r6 @ Is it LDF/STF on sp or fp?
- teqne r5, r7
- bne fpundefinstr
- tst r10, #0x00200000 @ Does it have WB
- beq ret_from_exception
- and r4, r10, #255 @ get offset
- and r6, r10, #0x000f0000
- tst r10, #0x00800000 @ +/-
- ldr r5, [sp, r6, lsr #14] @ Load reg
- rsbeq r4, r4, #0
- add r5, r5, r4, lsl #2
- str r5, [sp, r6, lsr #14] @ Save reg
- b ret_from_exception
-
-wfs_mask_data: .word 0x0e200110 @ WFS/RFS
- .word 0x0fef0fff
- .word 0x0d0d0100 @ LDF [sp]/STF [sp]
- .word 0x0d0b0100 @ LDF [fp]/STF [fp]
- .word 0x0f0f0f00
-#endif
-
-.LC2: .word fp_enter
-
-/*=============================================================================
- * Prefetch abort handler
- *-----------------------------------------------------------------------------
- */
-#define DEBUG_UNDEF
-/* remember: lr = USR pc */
-vector_prefetch:
- sub lr, lr, #4
- tst lr, #MODE_SVC26
- bne __pabt_invalid
- save_user_regs
- teqp pc, #MODE_SVC26 @ Enable IRQs...
- mask_pc r0, lr @ Address of abort
- mov r1, sp @ Tasks registers
- bl do_PrefetchAbort
- teq r0, #0 @ If non-zero, we believe this abort..
- bne ret_from_exception
-#ifdef DEBUG_UNDEF
- adr r0, t
- bl printk
-#endif
- ldr lr, [sp,#S_PC] @ FIXME program to test this on. I think its
- b .Lbug_undef @ broken at the moment though!)
-
-__pabt_invalid: save_svc_regs
- mov r0, sp @ Prefetch aborts are definitely *not*
- mov r1, #BAD_PREFETCH @ allowed in non-user modes. We cant
- and r2, lr, #3 @ recover from this problem.
- b bad_mode
-
-#ifdef DEBUG_UNDEF
-t: .ascii "*** undef ***\r\n\0"
- .align
-#endif
-
-/*=============================================================================
- * Address exception handler
- *-----------------------------------------------------------------------------
- * These aren't too critical.
- * (they're not supposed to happen).
- * In order to debug the reason for address exceptions in non-user modes,
- * we have to obtain all the registers so that we can see what's going on.
- */
-
-vector_addrexcptn:
- sub lr, lr, #8
- tst lr, #3
- bne Laddrexcptn_not_user
- save_user_regs
- teq pc, #MODE_SVC26
- mask_pc r0, lr @ Point to instruction
- mov r1, sp @ Point to registers
- mov r2, #0x400
- mov lr, pc
- bl do_excpt
- b ret_from_exception
-
-Laddrexcptn_not_user:
- save_svc_regs
- and r2, lr, #3
- teq r2, #3
- bne Laddrexcptn_illegal_mode
- teqp pc, #MODE_SVC26
- mask_pc r0, lr
- mov r1, sp
- orr r2, r2, #0x400
- bl do_excpt
- ldmia sp, {r0 - lr} @ I cant remember the reason I changed this...
- add sp, sp, #15*4
- movs pc, lr
-
-Laddrexcptn_illegal_mode:
- mov r0, sp
- str lr, [sp, #-4]!
- orr r1, r2, #PSR_I_BIT | PSR_F_BIT
- teqp r1, #0 @ change into mode (wont be user mode)
- mov r0, r0
- mov r1, r8 @ Any register from r8 - r14 can be banked
- mov r2, r9
- mov r3, r10
- mov r4, r11
- mov r5, r12
- mov r6, r13
- mov r7, r14
- teqp pc, #PSR_F_BIT | MODE_SVC26 @ back to svc
- mov r0, r0
- stmfd sp!, {r1-r7}
- ldmia r0, {r0-r7}
- stmfd sp!, {r0-r7}
- mov r0, sp
- mov r1, #BAD_ADDREXCPTN
- b bad_mode
-
-/*=============================================================================
- * Interrupt (IRQ) handler
- *-----------------------------------------------------------------------------
- * Note: if the IRQ was taken whilst in user mode, then *no* kernel routine
- * is running, so do not have to save svc lr.
- *
- * Entered in IRQ mode.
- */
-
-vector_IRQ: ldr sp, .LCirq @ Setup some temporary stack
- sub lr, lr, #4
- str lr, [sp] @ push return address
-
- tst lr, #3
- bne __irq_non_usr
-
-__irq_usr: teqp pc, #PSR_I_BIT | MODE_SVC26 @ Enter SVC mode
- mov r0, r0
-
- ldr lr, .LCirq
- ldr lr, [lr] @ Restore lr for jump back to USR
-
- save_user_regs
-
- handle_irq
-
- mov why, #0
- get_thread_info tsk
- b ret_to_user
-
-@ Place the IRQ priority table here so that the handle_irq macros above
-@ and below here can access it.
-
- irq_prio_table
-
-__irq_non_usr: teqp pc, #PSR_I_BIT | MODE_SVC26 @ Enter SVC mode
- mov r0, r0
-
- save_svc_regs_irq
-
- and r2, lr, #3
- teq r2, #3
- bne __irq_invalid @ IRQ not from SVC mode
-
- handle_irq
-
- restore_svc_regs
-
-__irq_invalid: mov r0, sp
- mov r1, #BAD_IRQ
- b bad_mode
-
-/*=============================================================================
- * Data abort handler code
- *-----------------------------------------------------------------------------
- *
- * This handles both exceptions from user and SVC modes, computes the address
- * range of the problem, and does any correction that is required. It then
- * calls the kernel data abort routine.
- *
- * This is where I wish that the ARM would tell you which address aborted.
- */
-
-vector_data: sub lr, lr, #8 @ Correct lr
- tst lr, #3
- bne Ldata_not_user
- save_user_regs
- teqp pc, #MODE_SVC26
- mask_pc r0, lr
- bl Ldata_do
- b ret_from_exception
-
-Ldata_not_user:
- save_svc_regs
- and r2, lr, #3
- teq r2, #3
- bne Ldata_illegal_mode
- tst lr, #PSR_I_BIT
- teqeqp pc, #MODE_SVC26
- mask_pc r0, lr
- bl Ldata_do
- restore_svc_regs
-
-Ldata_illegal_mode:
- mov r0, sp
- mov r1, #BAD_DATA
- b bad_mode
-
-Ldata_do: mov r3, sp
- ldr r4, [r0] @ Get instruction
- mov r2, #0
- tst r4, #1 << 20 @ Check to see if it is a write instruction
- orreq r2, r2, #FAULT_CODE_WRITE @ Indicate write instruction
- mov r1, r4, lsr #22 @ Now branch to the relevent processing routine
- and r1, r1, #15 << 2
- add pc, pc, r1
- movs pc, lr
- b Ldata_unknown
- b Ldata_unknown
- b Ldata_unknown
- b Ldata_unknown
- b Ldata_ldrstr_post @ ldr rd, [rn], #m
- b Ldata_ldrstr_numindex @ ldr rd, [rn, #m] @ RegVal
- b Ldata_ldrstr_post @ ldr rd, [rn], rm
- b Ldata_ldrstr_regindex @ ldr rd, [rn, rm]
- b Ldata_ldmstm @ ldm*a rn, <rlist>
- b Ldata_ldmstm @ ldm*b rn, <rlist>
- b Ldata_unknown
- b Ldata_unknown
- b Ldata_ldrstr_post @ ldc rd, [rn], #m @ Same as ldr rd, [rn], #m
- b Ldata_ldcstc_pre @ ldc rd, [rn, #m]
- b Ldata_unknown
-Ldata_unknown: @ Part of jumptable
- mov r0, r1
- mov r1, r4
- mov r2, r3
- b baddataabort
-
-Ldata_ldrstr_post:
- mov r0, r4, lsr #14 @ Get Rn
- and r0, r0, #15 << 2 @ Mask out reg.
- teq r0, #15 << 2
- ldr r0, [r3, r0] @ Get register
- biceq r0, r0, #PCMASK
- mov r1, r0
-#ifdef FAULT_CODE_LDRSTRPOST
- orr r2, r2, #FAULT_CODE_LDRSTRPOST
-#endif
- b do_DataAbort
-
-Ldata_ldrstr_numindex:
- mov r0, r4, lsr #14 @ Get Rn
- and r0, r0, #15 << 2 @ Mask out reg.
- teq r0, #15 << 2
- ldr r0, [r3, r0] @ Get register
- mov r1, r4, lsl #20
- biceq r0, r0, #PCMASK
- tst r4, #1 << 23
- addne r0, r0, r1, lsr #20
- subeq r0, r0, r1, lsr #20
- mov r1, r0
-#ifdef FAULT_CODE_LDRSTRPRE
- orr r2, r2, #FAULT_CODE_LDRSTRPRE
-#endif
- b do_DataAbort
-
-Ldata_ldrstr_regindex:
- mov r0, r4, lsr #14 @ Get Rn
- and r0, r0, #15 << 2 @ Mask out reg.
- teq r0, #15 << 2
- ldr r0, [r3, r0] @ Get register
- and r7, r4, #15
- biceq r0, r0, #PCMASK
- teq r7, #15 @ Check for PC
- ldr r7, [r3, r7, lsl #2] @ Get Rm
- and r8, r4, #0x60 @ Get shift types
- biceq r7, r7, #PCMASK
- mov r9, r4, lsr #7 @ Get shift amount
- and r9, r9, #31
- teq r8, #0
- moveq r7, r7, lsl r9
- teq r8, #0x20 @ LSR shift
- moveq r7, r7, lsr r9
- teq r8, #0x40 @ ASR shift
- moveq r7, r7, asr r9
- teq r8, #0x60 @ ROR shift
- moveq r7, r7, ror r9
- tst r4, #1 << 23
- addne r0, r0, r7
- subeq r0, r0, r7 @ Apply correction
- mov r1, r0
-#ifdef FAULT_CODE_LDRSTRREG
- orr r2, r2, #FAULT_CODE_LDRSTRREG
-#endif
- b do_DataAbort
-
-Ldata_ldmstm:
- mov r7, #0x11
- orr r7, r7, r7, lsl #8
- and r0, r4, r7
- and r1, r4, r7, lsl #1
- add r0, r0, r1, lsr #1
- and r1, r4, r7, lsl #2
- add r0, r0, r1, lsr #2
- and r1, r4, r7, lsl #3
- add r0, r0, r1, lsr #3
- add r0, r0, r0, lsr #8
- add r0, r0, r0, lsr #4
- and r7, r0, #15 @ r7 = no. of registers to transfer.
- mov r5, r4, lsr #14 @ Get Rn
- and r5, r5, #15 << 2
- ldr r0, [r3, r5] @ Get reg
- eor r6, r4, r4, lsl #2
- tst r6, #1 << 23 @ Check inc/dec ^ writeback
- rsbeq r7, r7, #0
- add r7, r0, r7, lsl #2 @ Do correction (signed)
- subne r1, r7, #1
- subeq r1, r0, #1
- moveq r0, r7
- tst r4, #1 << 21 @ Check writeback
- strne r7, [r3, r5]
- eor r6, r4, r4, lsl #1
- tst r6, #1 << 24 @ Check Pre/Post ^ inc/dec
- addeq r0, r0, #4
- addeq r1, r1, #4
- teq r5, #15*4 @ CHECK FOR PC
- biceq r1, r1, #PCMASK
- biceq r0, r0, #PCMASK
-#ifdef FAULT_CODE_LDMSTM
- orr r2, r2, #FAULT_CODE_LDMSTM
-#endif
- b do_DataAbort
-
-Ldata_ldcstc_pre:
- mov r0, r4, lsr #14 @ Get Rn
- and r0, r0, #15 << 2 @ Mask out reg.
- teq r0, #15 << 2
- ldr r0, [r3, r0] @ Get register
- mov r1, r4, lsl #24 @ Get offset
- biceq r0, r0, #PCMASK
- tst r4, #1 << 23
- addne r0, r0, r1, lsr #24
- subeq r0, r0, r1, lsr #24
- mov r1, r0
-#ifdef FAULT_CODE_LDCSTC
- orr r2, r2, #FAULT_CODE_LDCSTC
-#endif
- b do_DataAbort
-
-
-/*
- * This is the return code to user mode for abort handlers
- */
-ENTRY(ret_from_exception)
- get_thread_info tsk
- mov why, #0
- b ret_to_user
-
- .data
-ENTRY(fp_enter)
- .word fpe_not_present
- .text
-/*
- * Register switch for older 26-bit only ARMs
- */
-ENTRY(__switch_to)
- add r0, r0, #TI_CPU_SAVE
- stmia r0, {r4 - sl, fp, sp, lr}
- add r1, r1, #TI_CPU_SAVE
- ldmia r1, {r4 - sl, fp, sp, pc}^
-
-/*
- *=============================================================================
- * Low-level interface code
- *-----------------------------------------------------------------------------
- * Trap initialisation
- *-----------------------------------------------------------------------------
- *
- * Note - FIQ code has changed. The default is a couple of words in 0x1c, 0x20
- * that call _unexp_fiq. Nowever, we now copy the FIQ routine to 0x1c (removes
- * some excess cycles).
- *
- * What we need to put into 0-0x1c are branches to branch to the kernel.
- */
-
- .section ".init.text",#alloc,#execinstr
-
-.Ljump_addresses:
- swi SYS_ERROR0
- .word vector_undefinstr - 12
- .word vector_swi - 16
- .word vector_prefetch - 20
- .word vector_data - 24
- .word vector_addrexcptn - 28
- .word vector_IRQ - 32
- .word _unexp_fiq - 36
- b . + 8
-/*
- * initialise the trap system
- */
-ENTRY(__trap_init)
- stmfd sp!, {r4 - r7, lr}
- adr r1, .Ljump_addresses
- ldmia r1, {r1 - r7, ip, lr}
- orr r2, lr, r2, lsr #2
- orr r3, lr, r3, lsr #2
- orr r4, lr, r4, lsr #2
- orr r5, lr, r5, lsr #2
- orr r6, lr, r6, lsr #2
- orr r7, lr, r7, lsr #2
- orr ip, lr, ip, lsr #2
- mov r0, #0
- stmia r0, {r1 - r7, ip}
- ldmfd sp!, {r4 - r7, pc}^
-
- .bss
-__temp_irq: .space 4 @ saved lr_irq
-__temp_fiq: .space 128
diff --git a/arch/arm26/kernel/fiq.c b/arch/arm26/kernel/fiq.c
deleted file mode 100644
index c4776c96be6..00000000000
--- a/arch/arm26/kernel/fiq.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * linux/arch/arm26/kernel/fiq.c
- *
- * Copyright (C) 1998 Russell King
- * Copyright (C) 1998, 1999 Phil Blundell
- * Copyright (C) 2003 Ian Molton
- *
- * FIQ support written by Philip Blundell <philb@gnu.org>, 1998.
- *
- * FIQ support re-written by Russell King to be more generic
- *
- * We now properly support a method by which the FIQ handlers can
- * be stacked onto the vector. We still do not support sharing
- * the FIQ vector itself.
- *
- * Operation is as follows:
- * 1. Owner A claims FIQ:
- * - default_fiq relinquishes control.
- * 2. Owner A:
- * - inserts code.
- * - sets any registers,
- * - enables FIQ.
- * 3. Owner B claims FIQ:
- * - if owner A has a relinquish function.
- * - disable FIQs.
- * - saves any registers.
- * - returns zero.
- * 4. Owner B:
- * - inserts code.
- * - sets any registers,
- * - enables FIQ.
- * 5. Owner B releases FIQ:
- * - Owner A is asked to reacquire FIQ:
- * - inserts code.
- * - restores saved registers.
- * - enables FIQ.
- * 6. Goto 3
- */
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-
-#include <asm/fiq.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/pgalloc.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-
-#define FIQ_VECTOR (vectors_base() + 0x1c)
-
-static unsigned long no_fiq_insn;
-
-#define unprotect_page_0()
-#define protect_page_0()
-
-/* Default reacquire function
- * - we always relinquish FIQ control
- * - we always reacquire FIQ control
- */
-static int fiq_def_op(void *ref, int relinquish)
-{
- if (!relinquish) {
- unprotect_page_0();
- *(unsigned long *)FIQ_VECTOR = no_fiq_insn;
- protect_page_0();
- }
-
- return 0;
-}
-
-static struct fiq_handler default_owner = {
- .name = "default",
- .fiq_op = fiq_def_op,
-};
-
-static struct fiq_handler *current_fiq = &default_owner;
-
-int show_fiq_list(struct seq_file *p, void *v)
-{
- if (current_fiq != &default_owner)
- seq_printf(p, "FIQ: %s\n", current_fiq->name);
-
- return 0;
-}
-
-void set_fiq_handler(void *start, unsigned int length)
-{
- unprotect_page_0();
-
- memcpy((void *)FIQ_VECTOR, start, length);
-
- protect_page_0();
-}
-
-/*
- * Taking an interrupt in FIQ mode is death, so both these functions
- * disable irqs for the duration.
- */
-void set_fiq_regs(struct pt_regs *regs)
-{
- register unsigned long tmp, tmp2;
- __asm__ volatile (
- "mov %0, pc \n"
- "bic %1, %0, #0x3 \n"
- "orr %1, %1, %3 \n"
- "teqp %1, #0 @ select FIQ mode \n"
- "mov r0, r0 \n"
- "ldmia %2, {r8 - r14} \n"
- "teqp %0, #0 @ return to SVC mode \n"
- "mov r0, r0 "
- : "=&r" (tmp), "=&r" (tmp2)
- : "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26)
- /* These registers aren't modified by the above code in a way
- visible to the compiler, but we mark them as clobbers anyway
- so that GCC won't put any of the input or output operands in
- them. */
- : "r8", "r9", "r10", "r11", "r12", "r13", "r14");
-}
-
-void get_fiq_regs(struct pt_regs *regs)
-{
- register unsigned long tmp, tmp2;
- __asm__ volatile (
- "mov %0, pc \n"
- "bic %1, %0, #0x3 \n"
- "orr %1, %1, %3 \n"
- "teqp %1, #0 @ select FIQ mode \n"
- "mov r0, r0 \n"
- "stmia %2, {r8 - r14} \n"
- "teqp %0, #0 @ return to SVC mode \n"
- "mov r0, r0 "
- : "=&r" (tmp), "=&r" (tmp2)
- : "r" (&regs->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | MODE_FIQ26)
- /* These registers aren't modified by the above code in a way
- visible to the compiler, but we mark them as clobbers anyway
- so that GCC won't put any of the input or output operands in
- them. */
- : "r8", "r9", "r10", "r11", "r12", "r13", "r14");
-}
-
-int claim_fiq(struct fiq_handler *f)
-{
- int ret = 0;
-
- if (current_fiq) {
- ret = -EBUSY;
-
- if (current_fiq->fiq_op != NULL)
- ret = current_fiq->fiq_op(current_fiq->dev_id, 1);
- }
-
- if (!ret) {
- f->next = current_fiq;
- current_fiq = f;
- }
-
- return ret;
-}
-
-void release_fiq(struct fiq_handler *f)
-{
- if (current_fiq != f) {
- printk(KERN_ERR "%s FIQ trying to release %s FIQ\n",
- f->name, current_fiq->name);
-#ifdef CONFIG_DEBUG_ERRORS
- __backtrace();
-#endif
- return;
- }
-
- do
- current_fiq = current_fiq->next;
- while (current_fiq->fiq_op(current_fiq->dev_id, 0));
-}
-
-void enable_fiq(int fiq)
-{
- enable_irq(fiq + FIQ_START);
-}
-
-void disable_fiq(int fiq)
-{
- disable_irq(fiq + FIQ_START);
-}
-
-EXPORT_SYMBOL(set_fiq_handler);
-EXPORT_SYMBOL(set_fiq_regs);
-EXPORT_SYMBOL(get_fiq_regs);
-EXPORT_SYMBOL(claim_fiq);
-EXPORT_SYMBOL(release_fiq);
-EXPORT_SYMBOL(enable_fiq);
-EXPORT_SYMBOL(disable_fiq);
-
-void __init init_FIQ(void)
-{
- no_fiq_insn = *(unsigned long *)FIQ_VECTOR;
- set_fs(get_fs());
-}
diff --git a/arch/arm26/kernel/head.S b/arch/arm26/kernel/head.S
deleted file mode 100644
index 93575e0e58f..00000000000
--- a/arch/arm26/kernel/head.S
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * linux/arch/arm26/kernel/head.S
- *
- * Copyright (C) 1994-2000 Russell King
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 26-bit kernel startup code
- */
-#include <linux/linkage.h>
-#include <asm/mach-types.h>
-
- .globl swapper_pg_dir
- .equ swapper_pg_dir, 0x0207d000
-
-/*
- * Entry point.
- */
- .section ".init.text",#alloc,#execinstr
-ENTRY(stext)
-
-__entry:
- cmp pc, #0x02000000
- ldrlt pc, LC0 @ if 0x01800000, call at 0x02080000
- teq r0, #0 @ Check for old calling method
- blne oldparams @ Move page if old
-
- adr r0, LC0
- ldmib r0, {r2-r5, sp} @ Setup stack (and fetch other values)
-
- mov r0, #0 @ Clear BSS
-1: cmp r2, r3
- strcc r0, [r2], #4
- bcc 1b
-
- bl detect_proc_type
- str r0, [r4]
- bl detect_arch_type
- str r0, [r5]
-
-#ifdef CONFIG_XIP_KERNEL
- ldr r3, ETEXT @ data section copy
- ldr r4, SDATA
- ldr r5, EDATA
-1:
- ldr r6, [r3], #4
- str r6, [r4], #4
- cmp r4, r5
- blt 1b
-#endif
- mov fp, #0
- b start_kernel
-
-LC0: .word _stext
- .word __bss_start @ r2
- .word _end @ r3
- .word processor_id @ r4
- .word __machine_arch_type @ r5
- .word init_thread_union+8192 @ sp
-#ifdef CONFIG_XIP_KERNEL
-ETEXT: .word _endtext
-SDATA: .word _sdata
-EDATA: .word __bss_start
-#endif
-
-arm2_id: .long 0x41560200 @ ARM2 and 250 dont have a CPUID
-arm250_id: .long 0x41560250 @ So we create some after probing for them
- .align
-
-oldparams: mov r4, #0x02000000
- add r3, r4, #0x00080000
- add r4, r4, #0x0007c000
-1: ldmia r0!, {r5 - r12}
- stmia r4!, {r5 - r12}
- cmp r4, r3
- blt 1b
- mov pc, lr
-
-/*
- * We need some way to automatically detect the difference between
- * these two machines. Unfortunately, it is not possible to detect
- * the presence of the SuperIO chip, because that will hang the old
- * Archimedes machines solid.
- */
-/* DAG: Outdated, these have been combined !!!!!!! */
-detect_arch_type:
-#if defined(CONFIG_ARCH_ARC)
- mov r0, #MACH_TYPE_ARCHIMEDES
-#elif defined(CONFIG_ARCH_A5K)
- mov r0, #MACH_TYPE_A5K
-#endif
- mov pc, lr
-
-detect_proc_type:
- mov ip, lr
- mov r2, #0xea000000 @ Point undef instr to continuation
- adr r0, continue - 12
- orr r0, r2, r0, lsr #2
- mov r1, #0
- str r0, [r1, #4]
- ldr r0, arm2_id
- swp r2, r2, [r1] @ check for swp (ARM2 cant)
- ldr r0, arm250_id
- mrc 15, 0, r3, c0, c0 @ check for CP#15 (ARM250 cant)
- mov r0, r3
-continue: mov r2, #0xeb000000 @ Make undef vector loop
- sub r2, r2, #2
- str r2, [r1, #4]
- mov pc, ip
diff --git a/arch/arm26/kernel/init_task.c b/arch/arm26/kernel/init_task.c
deleted file mode 100644
index 4191565b889..00000000000
--- a/arch/arm26/kernel/init_task.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * linux/arch/arm26/kernel/init_task.c
- *
- * Copyright (C) 2003 Ian Molton
- *
- */
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-EXPORT_SYMBOL(init_mm);
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is 8192-byte aligned due to the
- * way process stacks are handled. This is done by making sure
- * the linker maps this in the .text segment right after head.S,
- * and making the linker scripts ensure the proper alignment.
- *
- * FIXME - should this be 32K alignment on arm26?
- *
- * The things we do for performance...
- */
-union thread_union init_thread_union
- __attribute__((__section__(".init.task"))) =
- { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
-EXPORT_SYMBOL(init_task);
diff --git a/arch/arm26/kernel/irq.c b/arch/arm26/kernel/irq.c
deleted file mode 100644
index 2ffe695b062..00000000000
--- a/arch/arm26/kernel/irq.c
+++ /dev/null
@@ -1,722 +0,0 @@
-/*
- * linux/arch/arm/kernel/irq.c
- *
- * Copyright (C) 1992 Linus Torvalds
- * Modifications for ARM processor Copyright (C) 1995-2000 Russell King.
- * 'Borrowed' for ARM26 and (C) 2003 Ian Molton.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This file contains the code used by various IRQ handling routines:
- * asking for different IRQ's should be done through these routines
- * instead of just grabbing them. Thus setups with different IRQ numbers
- * shouldn't result in any weird surprises, and installing new handlers
- * should be easier.
- *
- * IRQ's are in fact implemented a bit like signal handlers for the kernel.
- * Naturally it's not a 1:1 relation, but there are similarities.
- */
-#include <linux/module.h>
-#include <linux/ptrace.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/errno.h>
-
-#include <asm/irq.h>
-#include <asm/system.h>
-#include <asm/irqchip.h>
-
-//FIXME - this ought to be in a header IMO
-void __init arc_init_irq(void);
-
-/*
- * Maximum IRQ count. Currently, this is arbitary. However, it should
- * not be set too low to prevent false triggering. Conversely, if it
- * is set too high, then you could miss a stuck IRQ.
- *
- * FIXME Maybe we ought to set a timer and re-enable the IRQ at a later time?
- */
-#define MAX_IRQ_CNT 100000
-
-static volatile unsigned long irq_err_count;
-static DEFINE_SPINLOCK(irq_controller_lock);
-
-struct irqdesc irq_desc[NR_IRQS];
-
-/*
- * Dummy mask/unmask handler
- */
-void dummy_mask_unmask_irq(unsigned int irq)
-{
-}
-
-void do_bad_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- irq_err_count += 1;
- printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
-}
-
-static struct irqchip bad_chip = {
- .ack = dummy_mask_unmask_irq,
- .mask = dummy_mask_unmask_irq,
- .unmask = dummy_mask_unmask_irq,
-};
-
-static struct irqdesc bad_irq_desc = {
- .chip = &bad_chip,
- .handle = do_bad_IRQ,
- .depth = 1,
-};
-
-/**
- * disable_irq - disable an irq and wait for completion
- * @irq: Interrupt to disable
- *
- * Disable the selected interrupt line. We do this lazily.
- *
- * This function may be called from IRQ context.
- */
-void disable_irq(unsigned int irq)
-{
- struct irqdesc *desc = irq_desc + irq;
- unsigned long flags;
- spin_lock_irqsave(&irq_controller_lock, flags);
- if (!desc->depth++)
- desc->enabled = 0;
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-EXPORT_SYMBOL(disable_irq);
-
-void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq")));
-
-EXPORT_SYMBOL(disable_irq_nosync);
-
-/**
- * enable_irq - enable interrupt handling on an irq
- * @irq: Interrupt to enable
- *
- * Re-enables the processing of interrupts on this IRQ line.
- * Note that this may call the interrupt handler, so you may
- * get unexpected results if you hold IRQs disabled.
- *
- * This function may be called from IRQ context.
- */
-void enable_irq(unsigned int irq)
-{
- struct irqdesc *desc = irq_desc + irq;
- unsigned long flags;
- int pending = 0;
-
- spin_lock_irqsave(&irq_controller_lock, flags);
- if (unlikely(!desc->depth)) {
- printk("enable_irq(%u) unbalanced from %p\n", irq,
- __builtin_return_address(0)); //FIXME bum addresses reported - why?
- } else if (!--desc->depth) {
- desc->probing = 0;
- desc->enabled = 1;
- desc->chip->unmask(irq);
- pending = desc->pending;
- desc->pending = 0;
- /*
- * If the interrupt was waiting to be processed,
- * retrigger it.
- */
- if (pending)
- desc->chip->rerun(irq);
- }
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-EXPORT_SYMBOL(enable_irq);
-
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v;
- struct irqaction * action;
-
- if (i < NR_IRQS) {
- action = irq_desc[i].action;
- if (!action)
- goto out;
- seq_printf(p, "%3d: %10u ", i, kstat_irqs(i));
- seq_printf(p, " %s", action->name);
- for (action = action->next; action; action = action->next) {
- seq_printf(p, ", %s", action->name);
- }
- seq_putc(p, '\n');
- } else if (i == NR_IRQS) {
- show_fiq_list(p, v);
- seq_printf(p, "Err: %10lu\n", irq_err_count);
- }
-out:
- return 0;
-}
-
-/*
- * IRQ lock detection.
- *
- * Hopefully, this should get us out of a few locked situations.
- * However, it may take a while for this to happen, since we need
- * a large number if IRQs to appear in the same jiffie with the
- * same instruction pointer (or within 2 instructions).
- */
-static int check_irq_lock(struct irqdesc *desc, int irq, struct pt_regs *regs)
-{
- unsigned long instr_ptr = instruction_pointer(regs);
-
- if (desc->lck_jif == jiffies &&
- desc->lck_pc >= instr_ptr && desc->lck_pc < instr_ptr + 8) {
- desc->lck_cnt += 1;
-
- if (desc->lck_cnt > MAX_IRQ_CNT) {
- printk(KERN_ERR "IRQ LOCK: IRQ%d is locking the system, disabled\n", irq);
- return 1;
- }
- } else {
- desc->lck_cnt = 0;
- desc->lck_pc = instruction_pointer(regs);
- desc->lck_jif = jiffies;
- }
- return 0;
-}
-
-static void
-__do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs)
-{
- unsigned int status;
- int ret;
-
- spin_unlock(&irq_controller_lock);
- if (!(action->flags & IRQF_DISABLED))
- local_irq_enable();
-
- status = 0;
- do {
- ret = action->handler(irq, action->dev_id, regs);
- if (ret == IRQ_HANDLED)
- status |= action->flags;
- action = action->next;
- } while (action);
-
- if (status & IRQF_SAMPLE_RANDOM)
- add_interrupt_randomness(irq);
-
- spin_lock_irq(&irq_controller_lock);
-}
-
-/*
- * This is for software-decoded IRQs. The caller is expected to
- * handle the ack, clear, mask and unmask issues.
- */
-void
-do_simple_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- struct irqaction *action;
- const int cpu = smp_processor_id();
-
- desc->triggered = 1;
-
- kstat_cpu(cpu).irqs[irq]++;
-
- action = desc->action;
- if (action)
- __do_irq(irq, desc->action, regs);
-}
-
-/*
- * Most edge-triggered IRQ implementations seem to take a broken
- * approach to this. Hence the complexity.
- */
-void
-do_edge_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- const int cpu = smp_processor_id();
-
- desc->triggered = 1;
-
- /*
- * If we're currently running this IRQ, or its disabled,
- * we shouldn't process the IRQ. Instead, turn on the
- * hardware masks.
- */
- if (unlikely(desc->running || !desc->enabled))
- goto running;
-
- /*
- * Acknowledge and clear the IRQ, but don't mask it.
- */
- desc->chip->ack(irq);
-
- /*
- * Mark the IRQ currently in progress.
- */
- desc->running = 1;
-
- kstat_cpu(cpu).irqs[irq]++;
-
- do {
- struct irqaction *action;
-
- action = desc->action;
- if (!action)
- break;
-
- if (desc->pending && desc->enabled) {
- desc->pending = 0;
- desc->chip->unmask(irq);
- }
-
- __do_irq(irq, action, regs);
- } while (desc->pending);
-
- desc->running = 0;
-
- /*
- * If we were disabled or freed, shut down the handler.
- */
- if (likely(desc->action && !check_irq_lock(desc, irq, regs)))
- return;
-
- running:
- /*
- * We got another IRQ while this one was masked or
- * currently running. Delay it.
- */
- desc->pending = 1;
- desc->chip->mask(irq);
- desc->chip->ack(irq);
-}
-
-/*
- * Level-based IRQ handler. Nice and simple.
- */
-void
-do_level_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
-{
- struct irqaction *action;
- const int cpu = smp_processor_id();
-
- desc->triggered = 1;
-
- /*
- * Acknowledge, clear _AND_ disable the interrupt.
- */
- desc->chip->ack(irq);
-
- if (likely(desc->enabled)) {
- kstat_cpu(cpu).irqs[irq]++;
-
- /*
- * Return with this interrupt masked if no action
- */
- action = desc->action;
- if (action) {
- __do_irq(irq, desc->action, regs);
-
- if (likely(desc->enabled &&
- !check_irq_lock(desc, irq, regs)))
- desc->chip->unmask(irq);
- }
- }
-}
-
-/*
- * do_IRQ handles all hardware IRQ's. Decoded IRQs should not
- * come via this function. Instead, they should provide their
- * own 'handler'
- */
-asmlinkage void asm_do_IRQ(int irq, struct pt_regs *regs)
-{
- struct irqdesc *desc = irq_desc + irq;
-
- /*
- * Some hardware gives randomly wrong interrupts. Rather
- * than crashing, do something sensible.
- */
- if (irq >= NR_IRQS)
- desc = &bad_irq_desc;
-
- irq_enter();
- spin_lock(&irq_controller_lock);
- desc->handle(irq, desc, regs);
- spin_unlock(&irq_controller_lock);
- irq_exit();
-}
-
-void __set_irq_handler(unsigned int irq, irq_handler_t handle, int is_chained)
-{
- struct irqdesc *desc;
- unsigned long flags;
-
- if (irq >= NR_IRQS) {
- printk(KERN_ERR "Trying to install handler for IRQ%d\n", irq);
- return;
- }
-
- if (handle == NULL)
- handle = do_bad_IRQ;
-
- desc = irq_desc + irq;
-
- if (is_chained && desc->chip == &bad_chip)
- printk(KERN_WARNING "Trying to install chained handler for IRQ%d\n", irq);
-
- spin_lock_irqsave(&irq_controller_lock, flags);
- if (handle == do_bad_IRQ) {
- desc->chip->mask(irq);
- desc->chip->ack(irq);
- desc->depth = 1;
- desc->enabled = 0;
- }
- desc->handle = handle;
- if (handle != do_bad_IRQ && is_chained) {
- desc->valid = 0;
- desc->probe_ok = 0;
- desc->depth = 0;
- desc->chip->unmask(irq);
- }
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-
-void set_irq_chip(unsigned int irq, struct irqchip *chip)
-{
- struct irqdesc *desc;
- unsigned long flags;
-
- if (irq >= NR_IRQS) {
- printk(KERN_ERR "Trying to install chip for IRQ%d\n", irq);
- return;
- }
-
- if (chip == NULL)
- chip = &bad_chip;
-
- desc = irq_desc + irq;
- spin_lock_irqsave(&irq_controller_lock, flags);
- desc->chip = chip;
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-
-int set_irq_type(unsigned int irq, unsigned int type)
-{
- struct irqdesc *desc;
- unsigned long flags;
- int ret = -ENXIO;
-
- if (irq >= NR_IRQS) {
- printk(KERN_ERR "Trying to set irq type for IRQ%d\n", irq);
- return -ENODEV;
- }
-
- desc = irq_desc + irq;
- if (desc->chip->type) {
- spin_lock_irqsave(&irq_controller_lock, flags);
- ret = desc->chip->type(irq, type);
- spin_unlock_irqrestore(&irq_controller_lock, flags);
- }
-
- return ret;
-}
-
-void set_irq_flags(unsigned int irq, unsigned int iflags)
-{
- struct irqdesc *desc;
- unsigned long flags;
-
- if (irq >= NR_IRQS) {
- printk(KERN_ERR "Trying to set irq flags for IRQ%d\n", irq);
- return;
- }
-
- desc = irq_desc + irq;
- spin_lock_irqsave(&irq_controller_lock, flags);
- desc->valid = (iflags & IRQF_VALID) != 0;
- desc->probe_ok = (iflags & IRQF_PROBE) != 0;
- desc->noautoenable = (iflags & IRQF_NOAUTOEN) != 0;
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-
-int setup_irq(unsigned int irq, struct irqaction *new)
-{
- int shared = 0;
- struct irqaction *old, **p;
- unsigned long flags;
- struct irqdesc *desc;
-
- /*
- * Some drivers like serial.c use request_irq() heavily,
- * so we have to be careful not to interfere with a
- * running system.
- */
- if (new->flags & IRQF_SAMPLE_RANDOM) {
- /*
- * This function might sleep, we want to call it first,
- * outside of the atomic block.
- * Yes, this might clear the entropy pool if the wrong
- * driver is attempted to be loaded, without actually
- * installing a new handler, but is this really a problem,
- * only the sysadmin is able to do this.
- */
- rand_initialize_irq(irq);
- }
-
- /*
- * The following block of code has to be executed atomically
- */
- desc = irq_desc + irq;
- spin_lock_irqsave(&irq_controller_lock, flags);
- p = &desc->action;
- if ((old = *p) != NULL) {
- /* Can't share interrupts unless both agree to */
- if (!(old->flags & new->flags & IRQF_SHARED)) {
- spin_unlock_irqrestore(&irq_controller_lock, flags);
- return -EBUSY;
- }
-
- /* add new interrupt at end of irq queue */
- do {
- p = &old->next;
- old = *p;
- } while (old);
- shared = 1;
- }
-
- *p = new;
-
- if (!shared) {
- desc->probing = 0;
- desc->running = 0;
- desc->pending = 0;
- desc->depth = 1;
- if (!desc->noautoenable) {
- desc->depth = 0;
- desc->enabled = 1;
- desc->chip->unmask(irq);
- }
- }
-
- spin_unlock_irqrestore(&irq_controller_lock, flags);
- return 0;
-}
-
-/**
- * request_irq - allocate an interrupt line
- * @irq: Interrupt line to allocate
- * @handler: Function to be called when the IRQ occurs
- * @irqflags: Interrupt type flags
- * @devname: An ascii name for the claiming device
- * @dev_id: A cookie passed back to the handler function
- *
- * This call allocates interrupt resources and enables the
- * interrupt line and IRQ handling. From the point this
- * call is made your handler function may be invoked. Since
- * your handler function must clear any interrupt the board
- * raises, you must take care both to initialise your hardware
- * and to set up the interrupt handler in the right order.
- *
- * Dev_id must be globally unique. Normally the address of the
- * device data structure is used as the cookie. Since the handler
- * receives this value it makes sense to use it.
- *
- * If your interrupt is shared you must pass a non NULL dev_id
- * as this is required when freeing the interrupt.
- *
- * Flags:
- *
- * IRQF_SHARED Interrupt is shared
- *
- * IRQF_DISABLED Disable local interrupts while processing
- *
- * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy
- *
- */
-
-//FIXME - handler used to return void - whats the significance of the change?
-int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long irq_flags, const char * devname, void *dev_id)
-{
- unsigned long retval;
- struct irqaction *action;
-
- if (irq >= NR_IRQS || !irq_desc[irq].valid || !handler ||
- (irq_flags & IRQF_SHARED && !dev_id))
- return -EINVAL;
-
- action = kmalloc(sizeof(struct irqaction), GFP_KERNEL);
- if (!action)
- return -ENOMEM;
-
- action->handler = handler;
- action->flags = irq_flags;
- cpus_clear(action->mask);
- action->name = devname;
- action->next = NULL;
- action->dev_id = dev_id;
-
- retval = setup_irq(irq, action);
-
- if (retval)
- kfree(action);
- return retval;
-}
-
-EXPORT_SYMBOL(request_irq);
-
-/**
- * free_irq - free an interrupt
- * @irq: Interrupt line to free
- * @dev_id: Device identity to free
- *
- * Remove an interrupt handler. The handler is removed and if the
- * interrupt line is no longer in use by any driver it is disabled.
- * On a shared IRQ the caller must ensure the interrupt is disabled
- * on the card it drives before calling this function.
- *
- * This function may be called from interrupt context.
- */
-void free_irq(unsigned int irq, void *dev_id)
-{
- struct irqaction * action, **p;
- unsigned long flags;
-
- if (irq >= NR_IRQS || !irq_desc[irq].valid) {
- printk(KERN_ERR "Trying to free IRQ%d\n",irq);
-#ifdef CONFIG_DEBUG_ERRORS
- __backtrace();
-#endif
- return;
- }
-
- spin_lock_irqsave(&irq_controller_lock, flags);
- for (p = &irq_desc[irq].action; (action = *p) != NULL; p = &action->next) {
- if (action->dev_id != dev_id)
- continue;
-
- /* Found it - now free it */
- *p = action->next;
- kfree(action);
- goto out;
- }
- printk(KERN_ERR "Trying to free free IRQ%d\n",irq);
-#ifdef CONFIG_DEBUG_ERRORS
- __backtrace();
-#endif
-out:
- spin_unlock_irqrestore(&irq_controller_lock, flags);
-}
-
-EXPORT_SYMBOL(free_irq);
-
-/* Start the interrupt probing. Unlike other architectures,
- * we don't return a mask of interrupts from probe_irq_on,
- * but return the number of interrupts enabled for the probe.
- * The interrupts which have been enabled for probing is
- * instead recorded in the irq_desc structure.
- */
-unsigned long probe_irq_on(void)
-{
- unsigned int i, irqs = 0;
- unsigned long delay;
-
- /*
- * first snaffle up any unassigned but
- * probe-able interrupts
- */
- spin_lock_irq(&irq_controller_lock);
- for (i = 0; i < NR_IRQS; i++) {
- if (!irq_desc[i].probe_ok || irq_desc[i].action)
- continue;
-
- irq_desc[i].probing = 1;
- irq_desc[i].triggered = 0;
- if (irq_desc[i].chip->type)
- irq_desc[i].chip->type(i, IRQT_PROBE);
- irq_desc[i].chip->unmask(i);
- irqs += 1;
- }
- spin_unlock_irq(&irq_controller_lock);
-
- /*
- * wait for spurious interrupts to mask themselves out again
- */
- for (delay = jiffies + HZ/10; time_before(jiffies, delay); )
- /* min 100ms delay */;
-
- /*
- * now filter out any obviously spurious interrupts
- */
- spin_lock_irq(&irq_controller_lock);
- for (i = 0; i < NR_IRQS; i++) {
- if (irq_desc[i].probing && irq_desc[i].triggered) {
- irq_desc[i].probing = 0;
- irqs -= 1;
- }
- }
- spin_unlock_irq(&irq_controller_lock);
-
- return irqs;
-}
-
-EXPORT_SYMBOL(probe_irq_on);
-
-/*
- * Possible return values:
- * >= 0 - interrupt number
- * -1 - no interrupt/many interrupts
- */
-int probe_irq_off(unsigned long irqs)
-{
- unsigned int i;
- int irq_found = NO_IRQ;
-
- /*
- * look at the interrupts, and find exactly one
- * that we were probing has been triggered
- */
- spin_lock_irq(&irq_controller_lock);
- for (i = 0; i < NR_IRQS; i++) {
- if (irq_desc[i].probing &&
- irq_desc[i].triggered) {
- if (irq_found != NO_IRQ) {
- irq_found = NO_IRQ;
- goto out;
- }
- irq_found = i;
- }
- }
-
- if (irq_found == -1)
- irq_found = NO_IRQ;
-out:
- spin_unlock_irq(&irq_controller_lock);
-
- return irq_found;
-}
-
-EXPORT_SYMBOL(probe_irq_off);
-
-void __init init_irq_proc(void)
-{
-}
-
-void __init init_IRQ(void)
-{
- struct irqdesc *desc;
- extern void init_dma(void);
- int irq;
-
- for (irq = 0, desc = irq_desc; irq < NR_IRQS; irq++, desc++)
- *desc = bad_irq_desc;
-
- arc_init_irq();
- init_dma();
-}
diff --git a/arch/arm26/kernel/process.c b/arch/arm26/kernel/process.c
deleted file mode 100644
index dcd81e62ff4..00000000000
--- a/arch/arm26/kernel/process.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * linux/arch/arm26/kernel/process.c
- *
- * Copyright (C) 2003 Ian Molton - adapted for ARM26
- * Copyright (C) 1996-2000 Russell King - Converted to ARM.
- * Origional Copyright (C) 1995 Linus Torvalds
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <stdarg.h>
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/leds.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-
-extern const char *processor_modes[];
-extern void setup_mm_for_reboot(char mode);
-
-static volatile int hlt_counter;
-
-void disable_hlt(void)
-{
- hlt_counter++;
-}
-
-EXPORT_SYMBOL(disable_hlt);
-
-void enable_hlt(void)
-{
- hlt_counter--;
-}
-
-EXPORT_SYMBOL(enable_hlt);
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-
-__setup("nohlt", nohlt_setup);
-__setup("hlt", hlt_setup);
-
-/*
- * This is our default idle handler. We need to disable
- * interrupts here to ensure we don't miss a wakeup call.
- */
-void cpu_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- while (!need_resched())
- cpu_relax();
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
-}
-
-static char reboot_mode = 'h';
-
-int __init reboot_setup(char *str)
-{
- reboot_mode = str[0];
- return 1;
-}
-
-__setup("reboot=", reboot_setup);
-
-/* ARM26 cant do these but we still need to define them. */
-void machine_halt(void)
-{
-}
-void machine_power_off(void)
-{
-}
-
-void machine_restart(char * __unused)
-{
- /*
- * Clean and disable cache, and turn off interrupts
- */
- cpu_proc_fin();
-
- /*
- * Tell the mm system that we are going to reboot -
- * we may need it to insert some 1:1 mappings so that
- * soft boot works.
- */
- setup_mm_for_reboot(reboot_mode);
-
- /*
- * copy branch instruction to reset location and call it
- */
-
- *(unsigned long *)0 = *(unsigned long *)0x03800000;
- ((void(*)(void))0)();
-
- /*
- * Whoops - the architecture was unable to reboot.
- * Tell the user! Should never happen...
- */
- mdelay(1000);
- printk("Reboot failed -- System halted\n");
- while (1);
-}
-
-void show_regs(struct pt_regs * regs)
-{
- unsigned long flags;
-
- flags = condition_codes(regs);
-
- printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
- "sp : %08lx ip : %08lx fp : %08lx\n",
- instruction_pointer(regs),
- regs->ARM_lr, print_tainted(), regs->ARM_sp,
- regs->ARM_ip, regs->ARM_fp);
- printk("r10: %08lx r9 : %08lx r8 : %08lx\n",
- regs->ARM_r10, regs->ARM_r9,
- regs->ARM_r8);
- printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
- regs->ARM_r7, regs->ARM_r6,
- regs->ARM_r5, regs->ARM_r4);
- printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
- regs->ARM_r3, regs->ARM_r2,
- regs->ARM_r1, regs->ARM_r0);
- printk("Flags: %c%c%c%c",
- flags & PSR_N_BIT ? 'N' : 'n',
- flags & PSR_Z_BIT ? 'Z' : 'z',
- flags & PSR_C_BIT ? 'C' : 'c',
- flags & PSR_V_BIT ? 'V' : 'v');
- printk(" IRQs o%s FIQs o%s Mode %s Segment %s\n",
- interrupts_enabled(regs) ? "n" : "ff",
- fast_interrupts_enabled(regs) ? "n" : "ff",
- processor_modes[processor_mode(regs)],
- get_fs() == get_ds() ? "kernel" : "user");
-}
-
-void show_fpregs(struct user_fp *regs)
-{
- int i;
-
- for (i = 0; i < 8; i++) {
- unsigned long *p;
- char type;
-
- p = (unsigned long *)(regs->fpregs + i);
-
- switch (regs->ftype[i]) {
- case 1: type = 'f'; break;
- case 2: type = 'd'; break;
- case 3: type = 'e'; break;
- default: type = '?'; break;
- }
- if (regs->init_flag)
- type = '?';
-
- printk(" f%d(%c): %08lx %08lx %08lx%c",
- i, type, p[0], p[1], p[2], i & 1 ? '\n' : ' ');
- }
-
-
- printk("FPSR: %08lx FPCR: %08lx\n",
- (unsigned long)regs->fpsr,
- (unsigned long)regs->fpcr);
-}
-
-/*
- * Task structure and kernel stack allocation.
- */
-static unsigned long *thread_info_head;
-static unsigned int nr_thread_info;
-
-extern unsigned long get_page_8k(int priority);
-extern void free_page_8k(unsigned long page);
-
-// FIXME - is this valid?
-#define EXTRA_TASK_STRUCT 0
-#define ll_alloc_task_struct() ((struct thread_info *)get_page_8k(GFP_KERNEL))
-#define ll_free_task_struct(p) free_page_8k((unsigned long)(p))
-
-//FIXME - do we use *task param below looks like we dont, which is ok?
-//FIXME - if EXTRA_TASK_STRUCT is zero we can optimise the below away permanently. *IF* its supposed to be zero.
-struct thread_info *alloc_thread_info(struct task_struct *task)
-{
- struct thread_info *thread = NULL;
-
- if (EXTRA_TASK_STRUCT) {
- unsigned long *p = thread_info_head;
-
- if (p) {
- thread_info_head = (unsigned long *)p[0];
- nr_thread_info -= 1;
- }
- thread = (struct thread_info *)p;
- }
-
- if (!thread)
- thread = ll_alloc_task_struct();
-
-#ifdef CONFIG_MAGIC_SYSRQ
- /*
- * The stack must be cleared if you want SYSRQ-T to
- * give sensible stack usage information
- */
- if (thread) {
- char *p = (char *)thread;
- memzero(p+KERNEL_STACK_SIZE, KERNEL_STACK_SIZE);
- }
-#endif
- return thread;
-}
-
-void free_thread_info(struct thread_info *thread)
-{
- if (EXTRA_TASK_STRUCT && nr_thread_info < EXTRA_TASK_STRUCT) {
- unsigned long *p = (unsigned long *)thread;
- p[0] = (unsigned long)thread_info_head;
- thread_info_head = p;
- nr_thread_info += 1;
- } else
- ll_free_task_struct(thread);
-}
-
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
-}
-
-void flush_thread(void)
-{
- struct thread_info *thread = current_thread_info();
- struct task_struct *tsk = current;
-
- memset(&tsk->thread.debug, 0, sizeof(struct debug_info));
- memset(&thread->fpstate, 0, sizeof(union fp_state));
-
- clear_used_math();
-}
-
-void release_thread(struct task_struct *dead_task)
-{
-}
-
-asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
-
-int
-copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start,
- unsigned long unused, struct task_struct *p, struct pt_regs *regs)
-{
- struct thread_info *thread = task_thread_info(p);
- struct pt_regs *childregs = task_pt_regs(p);
-
- *childregs = *regs;
- childregs->ARM_r0 = 0;
- childregs->ARM_sp = stack_start;
-
- memset(&thread->cpu_context, 0, sizeof(struct cpu_context_save));
- thread->cpu_context.sp = (unsigned long)childregs;
- thread->cpu_context.pc = (unsigned long)ret_from_fork | MODE_SVC26 | PSR_I_BIT;
-
- return 0;
-}
-
-/*
- * fill in the fpe structure for a core dump...
- */
-int dump_fpu (struct pt_regs *regs, struct user_fp *fp)
-{
- struct thread_info *thread = current_thread_info();
- int used_math = !!used_math();
-
- if (used_math)
- memcpy(fp, &thread->fpstate.soft, sizeof (*fp));
-
- return used_math;
-}
-
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
- struct task_struct *tsk = current;
-
- dump->magic = CMAGIC;
- dump->start_code = tsk->mm->start_code;
- dump->start_stack = regs->ARM_sp & ~(PAGE_SIZE - 1);
-
- dump->u_tsize = (tsk->mm->end_code - tsk->mm->start_code) >> PAGE_SHIFT;
- dump->u_dsize = (tsk->mm->brk - tsk->mm->start_data + PAGE_SIZE - 1) >> PAGE_SHIFT;
- dump->u_ssize = 0;
-
- dump->u_debugreg[0] = tsk->thread.debug.bp[0].address;
- dump->u_debugreg[1] = tsk->thread.debug.bp[1].address;
- dump->u_debugreg[2] = tsk->thread.debug.bp[0].insn;
- dump->u_debugreg[3] = tsk->thread.debug.bp[1].insn;
- dump->u_debugreg[4] = tsk->thread.debug.nsaved;
-
- if (dump->start_stack < 0x04000000)
- dump->u_ssize = (0x04000000 - dump->start_stack) >> PAGE_SHIFT;
-
- dump->regs = *regs;
- dump->u_fpvalid = dump_fpu (regs, &dump->u_fp);
-}
-
-/*
- * Shuffle the argument into the correct register before calling the
- * thread function. r1 is the thread argument, r2 is the pointer to
- * the thread function, and r3 points to the exit function.
- * FIXME - make sure this is right - the older code used to zero fp
- * and cause the parent to call sys_exit (do_exit in this version)
- */
-extern void kernel_thread_helper(void);
-
-asm( ".section .text\n"
-" .align\n"
-" .type kernel_thread_helper, #function\n"
-"kernel_thread_helper:\n"
-" mov r0, r1\n"
-" mov lr, r3\n"
-" mov pc, r2\n"
-" .size kernel_thread_helper, . - kernel_thread_helper\n"
-" .previous");
-
-/*
- * Create a kernel thread.
- */
-pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
-{
- struct pt_regs regs;
-
- memset(&regs, 0, sizeof(regs));
-
- regs.ARM_r1 = (unsigned long)arg;
- regs.ARM_r2 = (unsigned long)fn;
- regs.ARM_r3 = (unsigned long)do_exit;
- regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26;
-
- return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
-}
-EXPORT_SYMBOL(kernel_thread);
-
-
-unsigned long get_wchan(struct task_struct *p)
-{
- unsigned long fp, lr;
- unsigned long stack_page;
- int count = 0;
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
-
- stack_page = 4096 + (unsigned long)p;
- fp = thread_saved_fp(p);
- do {
- if (fp < stack_page || fp > 4092+stack_page)
- return 0;
- lr = pc_pointer (((unsigned long *)fp)[-1]);
- if (!in_sched_functions(lr))
- return lr;
- fp = *(unsigned long *) (fp - 12);
- } while (count ++ < 16);
- return 0;
-}
diff --git a/arch/arm26/kernel/ptrace.c b/arch/arm26/kernel/ptrace.c
deleted file mode 100644
index 0fefb86970c..00000000000
--- a/arch/arm26/kernel/ptrace.c
+++ /dev/null
@@ -1,670 +0,0 @@
-/*
- * linux/arch/arm26/kernel/ptrace.c
- *
- * By Ross Biro 1/23/92
- * edited by Linus Torvalds
- * ARM modifications Copyright (C) 2000 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/security.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-//#include <asm/processor.h>
-
-#include "ptrace.h"
-
-#define REG_PC 15
-#define REG_PSR 15
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * Breakpoint SWI instruction: SWI &9F0001
- */
-#define BREAKINST_ARM 0xef9f0001
-
-/*
- * this routine will get a word off of the processes privileged stack.
- * the offset is how far from the base addr as stored in the THREAD.
- * this routine assumes that all the privileged stacks are in our
- * data space.
- */
-static inline long get_user_reg(struct task_struct *task, int offset)
-{
- return task_pt_regs(task)->uregs[offset];
-}
-
-/*
- * this routine will put a word on the processes privileged stack.
- * the offset is how far from the base addr as stored in the THREAD.
- * this routine assumes that all the privileged stacks are in our
- * data space.
- */
-static inline int
-put_user_reg(struct task_struct *task, int offset, long data)
-{
- struct pt_regs newregs, *regs = task_pt_regs(task);
- int ret = -EINVAL;
-
- newregs = *regs;
- newregs.uregs[offset] = data;
-
- if (valid_user_regs(&newregs)) {
- regs->uregs[offset] = data;
- ret = 0;
- }
-
- return ret;
-}
-
-static inline int
-read_u32(struct task_struct *task, unsigned long addr, u32 *res)
-{
- int ret;
-
- ret = access_process_vm(task, addr, res, sizeof(*res), 0);
-
- return ret == sizeof(*res) ? 0 : -EIO;
-}
-
-static inline int
-read_instr(struct task_struct *task, unsigned long addr, u32 *res)
-{
- int ret;
- u32 val;
- ret = access_process_vm(task, addr & ~3, &val, sizeof(val), 0);
- ret = ret == sizeof(val) ? 0 : -EIO;
- *res = val;
- return ret;
-}
-
-/*
- * Get value of register `rn' (in the instruction)
- */
-static unsigned long
-ptrace_getrn(struct task_struct *child, unsigned long insn)
-{
- unsigned int reg = (insn >> 16) & 15;
- unsigned long val;
-
- val = get_user_reg(child, reg);
- if (reg == 15)
- val = pc_pointer(val + 8); //FIXME - correct for arm26?
-
- return val;
-}
-
-/*
- * Get value of operand 2 (in an ALU instruction)
- */
-static unsigned long
-ptrace_getaluop2(struct task_struct *child, unsigned long insn)
-{
- unsigned long val;
- int shift;
- int type;
-
- if (insn & 1 << 25) {
- val = insn & 255;
- shift = (insn >> 8) & 15;
- type = 3;
- } else {
- val = get_user_reg (child, insn & 15);
-
- if (insn & (1 << 4))
- shift = (int)get_user_reg (child, (insn >> 8) & 15);
- else
- shift = (insn >> 7) & 31;
-
- type = (insn >> 5) & 3;
- }
-
- switch (type) {
- case 0: val <<= shift; break;
- case 1: val >>= shift; break;
- case 2:
- val = (((signed long)val) >> shift);
- break;
- case 3:
- val = (val >> shift) | (val << (32 - shift));
- break;
- }
- return val;
-}
-
-/*
- * Get value of operand 2 (in a LDR instruction)
- */
-static unsigned long
-ptrace_getldrop2(struct task_struct *child, unsigned long insn)
-{
- unsigned long val;
- int shift;
- int type;
-
- val = get_user_reg(child, insn & 15);
- shift = (insn >> 7) & 31;
- type = (insn >> 5) & 3;
-
- switch (type) {
- case 0: val <<= shift; break;
- case 1: val >>= shift; break;
- case 2:
- val = (((signed long)val) >> shift);
- break;
- case 3:
- val = (val >> shift) | (val << (32 - shift));
- break;
- }
- return val;
-}
-
-#define OP_MASK 0x01e00000
-#define OP_AND 0x00000000
-#define OP_EOR 0x00200000
-#define OP_SUB 0x00400000
-#define OP_RSB 0x00600000
-#define OP_ADD 0x00800000
-#define OP_ADC 0x00a00000
-#define OP_SBC 0x00c00000
-#define OP_RSC 0x00e00000
-#define OP_ORR 0x01800000
-#define OP_MOV 0x01a00000
-#define OP_BIC 0x01c00000
-#define OP_MVN 0x01e00000
-
-static unsigned long
-get_branch_address(struct task_struct *child, unsigned long pc, unsigned long insn)
-{
- u32 alt = 0;
-
- switch (insn & 0x0e000000) {
- case 0x00000000:
- case 0x02000000: {
- /*
- * data processing
- */
- long aluop1, aluop2, ccbit;
-
- if ((insn & 0xf000) != 0xf000)
- break;
-
- aluop1 = ptrace_getrn(child, insn);
- aluop2 = ptrace_getaluop2(child, insn);
- ccbit = get_user_reg(child, REG_PSR) & PSR_C_BIT ? 1 : 0;
-
- switch (insn & OP_MASK) {
- case OP_AND: alt = aluop1 & aluop2; break;
- case OP_EOR: alt = aluop1 ^ aluop2; break;
- case OP_SUB: alt = aluop1 - aluop2; break;
- case OP_RSB: alt = aluop2 - aluop1; break;
- case OP_ADD: alt = aluop1 + aluop2; break;
- case OP_ADC: alt = aluop1 + aluop2 + ccbit; break;
- case OP_SBC: alt = aluop1 - aluop2 + ccbit; break;
- case OP_RSC: alt = aluop2 - aluop1 + ccbit; break;
- case OP_ORR: alt = aluop1 | aluop2; break;
- case OP_MOV: alt = aluop2; break;
- case OP_BIC: alt = aluop1 & ~aluop2; break;
- case OP_MVN: alt = ~aluop2; break;
- }
- break;
- }
-
- case 0x04000000:
- case 0x06000000:
- /*
- * ldr
- */
- if ((insn & 0x0010f000) == 0x0010f000) {
- unsigned long base;
-
- base = ptrace_getrn(child, insn);
- if (insn & 1 << 24) {
- long aluop2;
-
- if (insn & 0x02000000)
- aluop2 = ptrace_getldrop2(child, insn);
- else
- aluop2 = insn & 0xfff;
-
- if (insn & 1 << 23)
- base += aluop2;
- else
- base -= aluop2;
- }
- if (read_u32(child, base, &alt) == 0)
- alt = pc_pointer(alt);
- }
- break;
-
- case 0x08000000:
- /*
- * ldm
- */
- if ((insn & 0x00108000) == 0x00108000) {
- unsigned long base;
- unsigned int nr_regs;
-
- if (insn & (1 << 23)) {
- nr_regs = hweight16(insn & 65535) << 2;
-
- if (!(insn & (1 << 24)))
- nr_regs -= 4;
- } else {
- if (insn & (1 << 24))
- nr_regs = -4;
- else
- nr_regs = 0;
- }
-
- base = ptrace_getrn(child, insn);
-
- if (read_u32(child, base + nr_regs, &alt) == 0)
- alt = pc_pointer(alt);
- break;
- }
- break;
-
- case 0x0a000000: {
- /*
- * bl or b
- */
- signed long displ;
- /* It's a branch/branch link: instead of trying to
- * figure out whether the branch will be taken or not,
- * we'll put a breakpoint at both locations. This is
- * simpler, more reliable, and probably not a whole lot
- * slower than the alternative approach of emulating the
- * branch.
- */
- displ = (insn & 0x00ffffff) << 8;
- displ = (displ >> 6) + 8;
- if (displ != 0 && displ != 4)
- alt = pc + displ;
- }
- break;
- }
-
- return alt;
-}
-
-static int
-swap_insn(struct task_struct *task, unsigned long addr,
- void *old_insn, void *new_insn, int size)
-{
- int ret;
-
- ret = access_process_vm(task, addr, old_insn, size, 0);
- if (ret == size)
- ret = access_process_vm(task, addr, new_insn, size, 1);
- return ret;
-}
-
-static void
-add_breakpoint(struct task_struct *task, struct debug_info *dbg, unsigned long addr)
-{
- int nr = dbg->nsaved;
-
- if (nr < 2) {
- u32 new_insn = BREAKINST_ARM;
- int res;
-
- res = swap_insn(task, addr, &dbg->bp[nr].insn, &new_insn, 4);
-
- if (res == 4) {
- dbg->bp[nr].address = addr;
- dbg->nsaved += 1;
- }
- } else
- printk(KERN_ERR "ptrace: too many breakpoints\n");
-}
-
-/*
- * Clear one breakpoint in the user program. We copy what the hardware
- * does and use bit 0 of the address to indicate whether this is a Thumb
- * breakpoint or an ARM breakpoint.
- */
-static void clear_breakpoint(struct task_struct *task, struct debug_entry *bp)
-{
- unsigned long addr = bp->address;
- u32 old_insn;
- int ret;
-
- ret = swap_insn(task, addr & ~3, &old_insn,
- &bp->insn, 4);
-
- if (ret != 4 || old_insn != BREAKINST_ARM)
- printk(KERN_ERR "%s:%d: corrupted ARM breakpoint at "
- "0x%08lx (0x%08x)\n", task->comm, task->pid,
- addr, old_insn);
-}
-
-void ptrace_set_bpt(struct task_struct *child)
-{
- struct pt_regs *regs;
- unsigned long pc;
- u32 insn;
- int res;
-
- regs = task_pt_regs(child);
- pc = instruction_pointer(regs);
-
- res = read_instr(child, pc, &insn);
- if (!res) {
- struct debug_info *dbg = &child->thread.debug;
- unsigned long alt;
-
- dbg->nsaved = 0;
-
- alt = get_branch_address(child, pc, insn);
- if (alt)
- add_breakpoint(child, dbg, alt);
-
- /*
- * Note that we ignore the result of setting the above
- * breakpoint since it may fail. When it does, this is
- * not so much an error, but a forewarning that we may
- * be receiving a prefetch abort shortly.
- *
- * If we don't set this breakpoint here, then we can
- * lose control of the thread during single stepping.
- */
- if (!alt || predicate(insn) != PREDICATE_ALWAYS)
- add_breakpoint(child, dbg, pc + 4);
- }
-}
-
-/*
- * Ensure no single-step breakpoint is pending. Returns non-zero
- * value if child was being single-stepped.
- */
-void ptrace_cancel_bpt(struct task_struct *child)
-{
- int i, nsaved = child->thread.debug.nsaved;
-
- child->thread.debug.nsaved = 0;
-
- if (nsaved > 2) {
- printk("ptrace_cancel_bpt: bogus nsaved: %d!\n", nsaved);
- nsaved = 2;
- }
-
- for (i = 0; i < nsaved; i++)
- clear_breakpoint(child, &child->thread.debug.bp[i]);
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure the single step bit is not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
- child->ptrace &= ~PT_SINGLESTEP;
- ptrace_cancel_bpt(child);
-}
-
-/*
- * Handle hitting a breakpoint.
- */
-void ptrace_break(struct task_struct *tsk, struct pt_regs *regs)
-{
- siginfo_t info;
-
- /*
- * The PC is always left pointing at the next instruction. Fix this.
- */
- regs->ARM_pc -= 4;
-
- if (tsk->thread.debug.nsaved == 0)
- printk(KERN_ERR "ptrace: bogus breakpoint trap\n");
-
- ptrace_cancel_bpt(tsk);
-
- info.si_signo = SIGTRAP;
- info.si_errno = 0;
- info.si_code = TRAP_BRKPT;
- info.si_addr = (void *)instruction_pointer(regs) - 4;
-
- force_sig_info(SIGTRAP, &info, tsk);
-}
-
-/*
- * Read the word at offset "off" into the "struct user". We
- * actually access the pt_regs stored on the kernel stack.
- */
-static int ptrace_read_user(struct task_struct *tsk, unsigned long off,
- unsigned long *ret)
-{
- unsigned long tmp;
-
- if (off & 3 || off >= sizeof(struct user))
- return -EIO;
-
- tmp = 0;
- if (off < sizeof(struct pt_regs))
- tmp = get_user_reg(tsk, off >> 2);
-
- return put_user(tmp, ret);
-}
-
-/*
- * Write the word at offset "off" into "struct user". We
- * actually access the pt_regs stored on the kernel stack.
- */
-static int ptrace_write_user(struct task_struct *tsk, unsigned long off,
- unsigned long val)
-{
- if (off & 3 || off >= sizeof(struct user))
- return -EIO;
-
- if (off >= sizeof(struct pt_regs))
- return 0;
-
- return put_user_reg(tsk, off >> 2, val);
-}
-
-/*
- * Get all user integer registers.
- */
-static int ptrace_getregs(struct task_struct *tsk, void *uregs)
-{
- struct pt_regs *regs = task_pt_regs(tsk);
-
- return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
-}
-
-/*
- * Set all user integer registers.
- */
-static int ptrace_setregs(struct task_struct *tsk, void *uregs)
-{
- struct pt_regs newregs;
- int ret;
-
- ret = -EFAULT;
- if (copy_from_user(&newregs, uregs, sizeof(struct pt_regs)) == 0) {
- struct pt_regs *regs = task_pt_regs(tsk);
-
- ret = -EINVAL;
- if (valid_user_regs(&newregs)) {
- *regs = newregs;
- ret = 0;
- }
- }
-
- return ret;
-}
-
-/*
- * Get the child FPU state.
- */
-static int ptrace_getfpregs(struct task_struct *tsk, void *ufp)
-{
- return copy_to_user(ufp, &task_thread_info(tsk)->fpstate,
- sizeof(struct user_fp)) ? -EFAULT : 0;
-}
-
-/*
- * Set the child FPU state.
- */
-static int ptrace_setfpregs(struct task_struct *tsk, void *ufp)
-{
- set_stopped_child_used_math(tsk);
- return copy_from_user(&task_thread_info(tsk)->fpstate, ufp,
- sizeof(struct user_fp)) ? -EFAULT : 0;
-}
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
- int ret;
-
- switch (request) {
- /*
- * read word at location "addr" in the child process.
- */
- case PTRACE_PEEKTEXT:
- case PTRACE_PEEKDATA:
- ret = generic_ptrace_peekdata(child, addr, data);
- break;
-
- case PTRACE_PEEKUSR:
- ret = ptrace_read_user(child, addr, (unsigned long *)data);
- break;
-
- /*
- * write the word at location addr.
- */
- case PTRACE_POKETEXT:
- case PTRACE_POKEDATA:
- ret = generic_ptrace_pokedata(child, addr, data);
- break;
-
- case PTRACE_POKEUSR:
- ret = ptrace_write_user(child, addr, data);
- break;
-
- /*
- * continue/restart and stop at next (return from) syscall
- */
- case PTRACE_SYSCALL:
- case PTRACE_CONT:
- ret = -EIO;
- if (!valid_signal(data))
- break;
- if (request == PTRACE_SYSCALL)
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- else
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- /* make sure single-step breakpoint is gone. */
- child->ptrace &= ~PT_SINGLESTEP;
- ptrace_cancel_bpt(child);
- wake_up_process(child);
- ret = 0;
- break;
-
- /*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL:
- /* make sure single-step breakpoint is gone. */
- child->ptrace &= ~PT_SINGLESTEP;
- ptrace_cancel_bpt(child);
- if (child->exit_state != EXIT_ZOMBIE) {
- child->exit_code = SIGKILL;
- wake_up_process(child);
- }
- ret = 0;
- break;
-
- /*
- * execute single instruction.
- */
- case PTRACE_SINGLESTEP:
- ret = -EIO;
- if (!valid_signal(data))
- break;
- child->ptrace |= PT_SINGLESTEP;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
-
- case PTRACE_DETACH:
- ret = ptrace_detach(child, data);
- break;
-
- case PTRACE_GETREGS:
- ret = ptrace_getregs(child, (void *)data);
- break;
-
- case PTRACE_SETREGS:
- ret = ptrace_setregs(child, (void *)data);
- break;
-
- case PTRACE_GETFPREGS:
- ret = ptrace_getfpregs(child, (void *)data);
- break;
-
- case PTRACE_SETFPREGS:
- ret = ptrace_setfpregs(child, (void *)data);
- break;
-
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
-
- return ret;
-}
-
-asmlinkage void syscall_trace(int why, struct pt_regs *regs)
-{
- unsigned long ip;
-
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- if (!(current->ptrace & PT_PTRACED))
- return;
-
- /*
- * Save IP. IP is used to denote syscall entry/exit:
- * IP = 0 -> entry, = 1 -> exit
- */
- ip = regs->ARM_ip;
- regs->ARM_ip = why;
-
- /* the 0x80 provides a way for the tracing parent to distinguish
- between a syscall stop and SIGTRAP delivery */
- ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
- ? 0x80 : 0));
- /*
- * this isn't the same as continuing with a signal, but it will do
- * for normal use. strace only continues with a signal if the
- * stopping signal is not SIGTRAP. -brl
- */
- if (current->exit_code) {
- send_sig(current->exit_code, current, 1);
- current->exit_code = 0;
- }
- regs->ARM_ip = ip;
-}
diff --git a/arch/arm26/kernel/ptrace.h b/arch/arm26/kernel/ptrace.h
deleted file mode 100644
index 846c9d8d36e..00000000000
--- a/arch/arm26/kernel/ptrace.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * linux/arch/arm26/kernel/ptrace.h
- *
- * Copyright (C) 2000-2003 Russell King
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-extern void ptrace_cancel_bpt(struct task_struct *);
-extern void ptrace_set_bpt(struct task_struct *);
-extern void ptrace_break(struct task_struct *, struct pt_regs *);
diff --git a/arch/arm26/kernel/semaphore.c b/arch/arm26/kernel/semaphore.c
deleted file mode 100644
index 5447a06db3f..00000000000
--- a/arch/arm26/kernel/semaphore.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * ARM semaphore implementation, taken from
- *
- * i386 semaphore implementation.
- *
- * (C) Copyright 1999 Linus Torvalds
- * (C) Copyright 2003 Ian Molton (ARM26 mods)
- *
- * Modified for ARM by Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-
-#include <asm/semaphore.h>
-
-/*
- * Semaphores are implemented using a two-way counter:
- * The "count" variable is decremented for each process
- * that tries to acquire the semaphore, while the "sleeping"
- * variable is a count of such acquires.
- *
- * Notably, the inline "up()" and "down()" functions can
- * efficiently test if they need to do any extra work (up
- * needs to do something only if count was negative before
- * the increment operation.
- *
- * "sleeping" and the contention routine ordering is
- * protected by the semaphore spinlock.
- *
- * Note that these functions are only called when there is
- * contention on the lock, and as such all this is the
- * "non-critical" part of the whole semaphore business. The
- * critical part is the inline stuff in <asm/semaphore.h>
- * where we want to avoid any extra jumps and calls.
- */
-
-/*
- * Logic:
- * - only on a boundary condition do we need to care. When we go
- * from a negative count to a non-negative, we wake people up.
- * - when we go from a non-negative count to a negative do we
- * (a) synchronize with the "sleeper" count and (b) make sure
- * that we're on the wakeup list before we synchronize so that
- * we cannot lose wakeup events.
- */
-
-void __up(struct semaphore *sem)
-{
- wake_up(&sem->wait);
-}
-
-static DEFINE_SPINLOCK(semaphore_lock);
-
-void __sched __down(struct semaphore * sem)
-{
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
- tsk->state = TASK_UNINTERRUPTIBLE;
- add_wait_queue_exclusive(&sem->wait, &wait);
-
- spin_lock_irq(&semaphore_lock);
- sem->sleepers++;
- for (;;) {
- int sleepers = sem->sleepers;
-
- /*
- * Add "everybody else" into it. They aren't
- * playing, because we own the spinlock.
- */
- if (!atomic_add_negative(sleepers - 1, &sem->count)) {
- sem->sleepers = 0;
- break;
- }
- sem->sleepers = 1; /* us - see -1 above */
- spin_unlock_irq(&semaphore_lock);
-
- schedule();
- tsk->state = TASK_UNINTERRUPTIBLE;
- spin_lock_irq(&semaphore_lock);
- }
- spin_unlock_irq(&semaphore_lock);
- remove_wait_queue(&sem->wait, &wait);
- tsk->state = TASK_RUNNING;
- wake_up(&sem->wait);
-}
-
-int __sched __down_interruptible(struct semaphore * sem)
-{
- int retval = 0;
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
- tsk->state = TASK_INTERRUPTIBLE;
- add_wait_queue_exclusive(&sem->wait, &wait);
-
- spin_lock_irq(&semaphore_lock);
- sem->sleepers ++;
- for (;;) {
- int sleepers = sem->sleepers;
-
- /*
- * With signals pending, this turns into
- * the trylock failure case - we won't be
- * sleeping, and we* can't get the lock as
- * it has contention. Just correct the count
- * and exit.
- */
- if (signal_pending(current)) {
- retval = -EINTR;
- sem->sleepers = 0;
- atomic_add(sleepers, &sem->count);
- break;
- }
-
- /*
- * Add "everybody else" into it. They aren't
- * playing, because we own the spinlock. The
- * "-1" is because we're still hoping to get
- * the lock.
- */
- if (!atomic_add_negative(sleepers - 1, &sem->count)) {
- sem->sleepers = 0;
- break;
- }
- sem->sleepers = 1; /* us - see -1 above */
- spin_unlock_irq(&semaphore_lock);
-
- schedule();
- tsk->state = TASK_INTERRUPTIBLE;
- spin_lock_irq(&semaphore_lock);
- }
- spin_unlock_irq(&semaphore_lock);
- tsk->state = TASK_RUNNING;
- remove_wait_queue(&sem->wait, &wait);
- wake_up(&sem->wait);
- return retval;
-}
-
-/*
- * Trylock failed - make sure we correct for
- * having decremented the count.
- *
- * We could have done the trylock with a
- * single "cmpxchg" without failure cases,
- * but then it wouldn't work on a 386.
- */
-int __down_trylock(struct semaphore * sem)
-{
- int sleepers;
- unsigned long flags;
-
- spin_lock_irqsave(&semaphore_lock, flags);
- sleepers = sem->sleepers + 1;
- sem->sleepers = 0;
-
- /*
- * Add "everybody else" and us into it. They aren't
- * playing, because we own the spinlock.
- */
- if (!atomic_add_negative(sleepers, &sem->count))
- wake_up(&sem->wait);
-
- spin_unlock_irqrestore(&semaphore_lock, flags);
- return 1;
-}
-
-/*
- * The semaphore operations have a special calling sequence that
- * allow us to do a simpler in-line version of them. These routines
- * need to convert that sequence back into the C sequence when
- * there is contention on the semaphore.
- *
- * ip contains the semaphore pointer on entry. Save the C-clobbered
- * registers (r0 to r3 and lr), but not ip, as we use it as a return
- * value in some cases..
- */
-asm(" .section .sched.text , #alloc, #execinstr \n\
- .align 5 \n\
- .globl __down_failed \n\
-__down_failed: \n\
- stmfd sp!, {r0 - r3, lr} \n\
- mov r0, ip \n\
- bl __down \n\
- ldmfd sp!, {r0 - r3, pc}^ \n\
- \n\
- .align 5 \n\
- .globl __down_interruptible_failed \n\
-__down_interruptible_failed: \n\
- stmfd sp!, {r0 - r3, lr} \n\
- mov r0, ip \n\
- bl __down_interruptible \n\
- mov ip, r0 \n\
- ldmfd sp!, {r0 - r3, pc}^ \n\
- \n\
- .align 5 \n\
- .globl __down_trylock_failed \n\
-__down_trylock_failed: \n\
- stmfd sp!, {r0 - r3, lr} \n\
- mov r0, ip \n\
- bl __down_trylock \n\
- mov ip, r0 \n\
- ldmfd sp!, {r0 - r3, pc}^ \n\
- \n\
- .align 5 \n\
- .globl __up_wakeup \n\
-__up_wakeup: \n\
- stmfd sp!, {r0 - r3, lr} \n\
- mov r0, ip \n\
- bl __up \n\
- ldmfd sp!, {r0 - r3, pc}^ \n\
- ");
-
-EXPORT_SYMBOL(__down_failed);
-EXPORT_SYMBOL(__down_interruptible_failed);
-EXPORT_SYMBOL(__down_trylock_failed);
-EXPORT_SYMBOL(__up_wakeup);
-
diff --git a/arch/arm26/kernel/setup.c b/arch/arm26/kernel/setup.c
deleted file mode 100644
index 0e006c6cd5a..00000000000
--- a/arch/arm26/kernel/setup.c
+++ /dev/null
@@ -1,572 +0,0 @@
-/*
- * linux/arch/arm26/kernel/setup.c
- *
- * Copyright (C) 1995-2001 Russell King
- * Copyright (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/utsname.h>
-#include <linux/blkdev.h>
-#include <linux/console.h>
-#include <linux/bootmem.h>
-#include <linux/seq_file.h>
-#include <linux/screen_info.h>
-#include <linux/init.h>
-#include <linux/root_dev.h>
-
-#include <asm/elf.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/procinfo.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/tlbflush.h>
-
-#include <asm/irqchip.h>
-
-#ifndef MEM_SIZE
-#define MEM_SIZE (16*1024*1024)
-#endif
-
-#ifdef CONFIG_PREEMPT
-DEFINE_SPINLOCK(kernel_flag);
-#endif
-
-#if defined(CONFIG_FPE_NWFPE)
-char fpe_type[8];
-
-static int __init fpe_setup(char *line)
-{
- memcpy(fpe_type, line, 8);
- return 1;
-}
-
-__setup("fpe=", fpe_setup);
-#endif
-
-extern void paging_init(struct meminfo *);
-extern void convert_to_tag_list(struct tag *tags);
-extern void squash_mem_tags(struct tag *tag);
-extern void bootmem_init(struct meminfo *);
-extern int root_mountflags;
-extern int _stext, _text, _etext, _edata, _end;
-#ifdef CONFIG_XIP_KERNEL
-extern int _endtext, _sdata;
-#endif
-
-
-unsigned int processor_id;
-unsigned int __machine_arch_type;
-unsigned int system_rev;
-unsigned int system_serial_low;
-unsigned int system_serial_high;
-unsigned int elf_hwcap;
-unsigned int memc_ctrl_reg;
-unsigned int number_mfm_drives;
-
-struct processor processor;
-
-char elf_platform[ELF_PLATFORM_SIZE];
-
-unsigned long phys_initrd_start __initdata = 0;
-unsigned long phys_initrd_size __initdata = 0;
-static struct meminfo meminfo __initdata = { 0, };
-static struct proc_info_item proc_info;
-static const char *machine_name;
-static char __initdata command_line[COMMAND_LINE_SIZE];
-
-static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
-
-/*
- * Standard memory resources
- */
-static struct resource mem_res[] = {
- { "Video RAM", 0, 0, IORESOURCE_MEM },
- { "Kernel code", 0, 0, IORESOURCE_MEM },
- { "Kernel data", 0, 0, IORESOURCE_MEM }
-};
-
-#define video_ram mem_res[0]
-#define kernel_code mem_res[1]
-#define kernel_data mem_res[2]
-
-static struct resource io_res[] = {
- { "reserved", 0x3bc, 0x3be, IORESOURCE_IO | IORESOURCE_BUSY },
- { "reserved", 0x378, 0x37f, IORESOURCE_IO | IORESOURCE_BUSY },
- { "reserved", 0x278, 0x27f, IORESOURCE_IO | IORESOURCE_BUSY }
-};
-
-#define lp0 io_res[0]
-#define lp1 io_res[1]
-#define lp2 io_res[2]
-
-#define dump_cpu_info() do { } while (0)
-
-static void __init setup_processor(void)
-{
- extern struct proc_info_list __proc_info_begin, __proc_info_end;
- struct proc_info_list *list;
-
- /*
- * locate processor in the list of supported processor
- * types. The linker builds this table for us from the
- * entries in arch/arm26/mm/proc-*.S
- */
- for (list = &__proc_info_begin; list < &__proc_info_end ; list++)
- if ((processor_id & list->cpu_mask) == list->cpu_val)
- break;
-
- /*
- * If processor type is unrecognised, then we
- * can do nothing...
- */
- if (list >= &__proc_info_end) {
- printk("CPU configuration botched (ID %08x), unable "
- "to continue.\n", processor_id);
- while (1);
- }
-
- proc_info = *list->info;
- processor = *list->proc;
-
-
- printk("CPU: %s %s revision %d\n",
- proc_info.manufacturer, proc_info.cpu_name,
- (int)processor_id & 15);
-
- dump_cpu_info();
-
- sprintf(init_utsname()->machine, "%s", list->arch_name);
- sprintf(elf_platform, "%s", list->elf_name);
- elf_hwcap = list->elf_hwcap;
-
- cpu_proc_init();
-}
-
-/*
- * Initial parsing of the command line. We need to pick out the
- * memory size. We look for mem=size@start, where start and size
- * are "size[KkMm]"
- */
-static void __init
-parse_cmdline(struct meminfo *mi, char **cmdline_p, char *from)
-{
- char c = ' ', *to = command_line;
- int usermem = 0, len = 0;
-
- for (;;) {
- if (c == ' ' && !memcmp(from, "mem=", 4)) {
- unsigned long size, start;
-
- if (to != command_line)
- to -= 1;
-
- /*
- * If the user specifies memory size, we
- * blow away any automatically generated
- * size.
- */
- if (usermem == 0) {
- usermem = 1;
- mi->nr_banks = 0;
- }
-
- start = PHYS_OFFSET;
- size = memparse(from + 4, &from);
- if (*from == '@')
- start = memparse(from + 1, &from);
-
- mi->bank[mi->nr_banks].start = start;
- mi->bank[mi->nr_banks].size = size;
- mi->bank[mi->nr_banks].node = PHYS_TO_NID(start);
- mi->nr_banks += 1;
- }
- c = *from++;
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *to++ = c;
- }
- *to = '\0';
- *cmdline_p = command_line;
-}
-
-static void __init
-setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)
-{
-#ifdef CONFIG_BLK_DEV_RAM
- extern int rd_size, rd_image_start, rd_prompt, rd_doload;
-
- rd_image_start = image_start;
- rd_prompt = prompt;
- rd_doload = doload;
-
- if (rd_sz)
- rd_size = rd_sz;
-#endif
-}
-
-static void __init
-request_standard_resources(struct meminfo *mi)
-{
- struct resource *res;
- int i;
-
- kernel_code.start = init_mm.start_code;
- kernel_code.end = init_mm.end_code - 1;
-#ifdef CONFIG_XIP_KERNEL
- kernel_data.start = init_mm.start_data;
-#else
- kernel_data.start = init_mm.end_code;
-#endif
- kernel_data.end = init_mm.brk - 1;
-
- for (i = 0; i < mi->nr_banks; i++) {
- unsigned long virt_start, virt_end;
-
- if (mi->bank[i].size == 0)
- continue;
-
- virt_start = mi->bank[i].start;
- virt_end = virt_start + mi->bank[i].size - 1;
-
- res = alloc_bootmem_low(sizeof(*res));
- res->name = "System RAM";
- res->start = virt_start;
- res->end = virt_end;
- res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
-
- request_resource(&iomem_resource, res);
-
- if (kernel_code.start >= res->start &&
- kernel_code.end <= res->end)
- request_resource(res, &kernel_code);
- if (kernel_data.start >= res->start &&
- kernel_data.end <= res->end)
- request_resource(res, &kernel_data);
- }
-
-/* FIXME - needed? if (mdesc->video_start) {
- video_ram.start = mdesc->video_start;
- video_ram.end = mdesc->video_end;
- request_resource(&iomem_resource, &video_ram);
- }*/
-
- /*
- * Some machines don't have the possibility of ever
- * possessing lp1 or lp2
- */
- if (0) /* FIXME - need to do this for A5k at least */
- request_resource(&ioport_resource, &lp0);
-}
-
-/*
- * Tag parsing.
- *
- * This is the new way of passing data to the kernel at boot time. Rather
- * than passing a fixed inflexible structure to the kernel, we pass a list
- * of variable-sized tags to the kernel. The first tag must be a ATAG_CORE
- * tag for the list to be recognised (to distinguish the tagged list from
- * a param_struct). The list is terminated with a zero-length tag (this tag
- * is not parsed in any way).
- */
-static int __init parse_tag_core(const struct tag *tag)
-{
- if (tag->hdr.size > 2) {
- if ((tag->u.core.flags & 1) == 0)
- root_mountflags &= ~MS_RDONLY;
- ROOT_DEV = old_decode_dev(tag->u.core.rootdev);
- }
- return 0;
-}
-
-__tagtable(ATAG_CORE, parse_tag_core);
-
-static int __init parse_tag_mem32(const struct tag *tag)
-{
- if (meminfo.nr_banks >= NR_BANKS) {
- printk(KERN_WARNING
- "Ignoring memory bank 0x%08x size %dKB\n",
- tag->u.mem.start, tag->u.mem.size / 1024);
- return -EINVAL;
- }
- meminfo.bank[meminfo.nr_banks].start = tag->u.mem.start;
- meminfo.bank[meminfo.nr_banks].size = tag->u.mem.size;
- meminfo.bank[meminfo.nr_banks].node = PHYS_TO_NID(tag->u.mem.start);
- meminfo.nr_banks += 1;
-
- return 0;
-}
-
-__tagtable(ATAG_MEM, parse_tag_mem32);
-
-#if defined(CONFIG_DUMMY_CONSOLE)
-struct screen_info screen_info = {
- .orig_video_lines = 30,
- .orig_video_cols = 80,
- .orig_video_mode = 0,
- .orig_video_ega_bx = 0,
- .orig_video_isVGA = 1,
- .orig_video_points = 8
-};
-
-static int __init parse_tag_videotext(const struct tag *tag)
-{
- screen_info.orig_x = tag->u.videotext.x;
- screen_info.orig_y = tag->u.videotext.y;
- screen_info.orig_video_page = tag->u.videotext.video_page;
- screen_info.orig_video_mode = tag->u.videotext.video_mode;
- screen_info.orig_video_cols = tag->u.videotext.video_cols;
- screen_info.orig_video_ega_bx = tag->u.videotext.video_ega_bx;
- screen_info.orig_video_lines = tag->u.videotext.video_lines;
- screen_info.orig_video_isVGA = tag->u.videotext.video_isvga;
- screen_info.orig_video_points = tag->u.videotext.video_points;
- return 0;
-}
-
-__tagtable(ATAG_VIDEOTEXT, parse_tag_videotext);
-#endif
-
-static int __init parse_tag_acorn(const struct tag *tag)
-{
- memc_ctrl_reg = tag->u.acorn.memc_control_reg;
- number_mfm_drives = tag->u.acorn.adfsdrives;
- return 0;
-}
-
-__tagtable(ATAG_ACORN, parse_tag_acorn);
-
-static int __init parse_tag_ramdisk(const struct tag *tag)
-{
- setup_ramdisk((tag->u.ramdisk.flags & 1) == 0,
- (tag->u.ramdisk.flags & 2) == 0,
- tag->u.ramdisk.start, tag->u.ramdisk.size);
- return 0;
-}
-
-__tagtable(ATAG_RAMDISK, parse_tag_ramdisk);
-
-static int __init parse_tag_initrd(const struct tag *tag)
-{
- printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n");
- phys_initrd_start = (unsigned long)tag->u.initrd.start;
- phys_initrd_size = (unsigned long)tag->u.initrd.size;
- return 0;
-}
-
-__tagtable(ATAG_INITRD, parse_tag_initrd);
-
-static int __init parse_tag_initrd2(const struct tag *tag)
-{
- printk(KERN_WARNING "ATAG_INITRD is deprecated; please update your bootloader. \n");
- phys_initrd_start = (unsigned long)tag->u.initrd.start;
- phys_initrd_size = (unsigned long)tag->u.initrd.size;
- return 0;
-}
-
-__tagtable(ATAG_INITRD2, parse_tag_initrd2);
-
-static int __init parse_tag_serialnr(const struct tag *tag)
-{
- system_serial_low = tag->u.serialnr.low;
- system_serial_high = tag->u.serialnr.high;
- return 0;
-}
-
-__tagtable(ATAG_SERIAL, parse_tag_serialnr);
-
-static int __init parse_tag_revision(const struct tag *tag)
-{
- system_rev = tag->u.revision.rev;
- return 0;
-}
-
-__tagtable(ATAG_REVISION, parse_tag_revision);
-
-static int __init parse_tag_cmdline(const struct tag *tag)
-{
- strncpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
- default_command_line[COMMAND_LINE_SIZE - 1] = '\0';
- return 0;
-}
-
-__tagtable(ATAG_CMDLINE, parse_tag_cmdline);
-
-/*
- * Scan the tag table for this tag, and call its parse function.
- * The tag table is built by the linker from all the __tagtable
- * declarations.
- */
-static int __init parse_tag(const struct tag *tag)
-{
- extern struct tagtable __tagtable_begin, __tagtable_end;
- struct tagtable *t;
-
- for (t = &__tagtable_begin; t < &__tagtable_end; t++)
- if (tag->hdr.tag == t->tag) {
- t->parse(tag);
- break;
- }
-
- return t < &__tagtable_end;
-}
-
-/*
- * Parse all tags in the list, checking both the global and architecture
- * specific tag tables.
- */
-static void __init parse_tags(const struct tag *t)
-{
- for (; t->hdr.size; t = tag_next(t))
- if (!parse_tag(t))
- printk(KERN_WARNING
- "Ignoring unrecognised tag 0x%08x\n",
- t->hdr.tag);
-}
-
-/*
- * This holds our defaults.
- */
-static struct init_tags {
- struct tag_header hdr1;
- struct tag_core core;
- struct tag_header hdr2;
- struct tag_mem32 mem;
- struct tag_header hdr3;
-} init_tags __initdata = {
- { tag_size(tag_core), ATAG_CORE },
- { 1, PAGE_SIZE, 0xff },
- { tag_size(tag_mem32), ATAG_MEM },
- { MEM_SIZE, PHYS_OFFSET },
- { 0, ATAG_NONE }
-};
-
-void __init setup_arch(char **cmdline_p)
-{
- struct tag *tags = (struct tag *)&init_tags;
- char *from = default_command_line;
-
- setup_processor();
- if(machine_arch_type == MACH_TYPE_A5K)
- machine_name = "A5000";
- else if(machine_arch_type == MACH_TYPE_ARCHIMEDES)
- machine_name = "Archimedes";
- else
- machine_name = "UNKNOWN";
-
- //FIXME - the tag struct is always copied here but this is a block
- // of RAM that is accidentally reserved along with video RAM. perhaps
- // it would be a good idea to explicitly reserve this?
-
- tags = (struct tag *)0x0207c000;
-
- /*
- * If we have the old style parameters, convert them to
- * a tag list.
- */
- if (tags->hdr.tag != ATAG_CORE)
- convert_to_tag_list(tags);
- if (tags->hdr.tag != ATAG_CORE)
- tags = (struct tag *)&init_tags;
- if (tags->hdr.tag == ATAG_CORE) {
- if (meminfo.nr_banks != 0)
- squash_mem_tags(tags);
- parse_tags(tags);
- }
-
- init_mm.start_code = (unsigned long) &_text;
-#ifndef CONFIG_XIP_KERNEL
- init_mm.end_code = (unsigned long) &_etext;
-#else
- init_mm.end_code = (unsigned long) &_endtext;
- init_mm.start_data = (unsigned long) &_sdata;
-#endif
- init_mm.end_data = (unsigned long) &_edata;
- init_mm.brk = (unsigned long) &_end;
-
- memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
- boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
- parse_cmdline(&meminfo, cmdline_p, from);
- bootmem_init(&meminfo);
- paging_init(&meminfo);
- request_standard_resources(&meminfo);
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-}
-
-static const char *hwcap_str[] = {
- "swp",
- "half",
- "thumb",
- "26bit",
- "fastmult",
- "fpa",
- "vfp",
- "edsp",
- NULL
-};
-
-static int c_show(struct seq_file *m, void *v)
-{
- int i;
-
- seq_printf(m, "Processor\t: %s %s rev %d (%s)\n",
- proc_info.manufacturer, proc_info.cpu_name,
- (int)processor_id & 15, elf_platform);
-
- seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
- loops_per_jiffy / (500000/HZ),
- (loops_per_jiffy / (5000/HZ)) % 100);
-
- /* dump out the processor features */
- seq_puts(m, "Features\t: ");
-
- for (i = 0; hwcap_str[i]; i++)
- if (elf_hwcap & (1 << i))
- seq_printf(m, "%s ", hwcap_str[i]);
-
- seq_puts(m, "\n");
-
- seq_printf(m, "CPU part\t\t: %07x\n", processor_id >> 4);
- seq_printf(m, "CPU revision\t: %d\n\n", processor_id & 15);
- seq_printf(m, "Hardware\t: %s\n", machine_name);
- seq_printf(m, "Revision\t: %04x\n", system_rev);
- seq_printf(m, "Serial\t\t: %08x%08x\n",
- system_serial_high, system_serial_low);
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return *pos < 1 ? (void *)1 : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- ++*pos;
- return NULL;
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = c_show
-};
diff --git a/arch/arm26/kernel/signal.c b/arch/arm26/kernel/signal.c
deleted file mode 100644
index 379b82dc645..00000000000
--- a/arch/arm26/kernel/signal.c
+++ /dev/null
@@ -1,538 +0,0 @@
-/*
- * linux/arch/arm26/kernel/signal.c
- *
- * Copyright (C) 1995-2002 Russell King
- * Copyright (C) 2003 Ian Molton (ARM26)
- *
- * FIXME!!! This is probably very broken (13/05/2003)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/personality.h>
-#include <linux/tty.h>
-#include <linux/binfmts.h>
-#include <linux/elf.h>
-
-#include <asm/pgalloc.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-
-#include "ptrace.h"
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-/*
- * For ARM syscalls, we encode the syscall number into the instruction.
- */
-#define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn))
-#define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn))
-
-static int do_signal(sigset_t *oldset, struct pt_regs * regs, int syscall);
-
-/*
- * atomically swap in the new signal mask, and wait for a signal.
- */
-asmlinkage int sys_sigsuspend(int restart, unsigned long oldmask, old_sigset_t mask, struct pt_regs *regs)
-{
- sigset_t saveset;
-
- mask &= _BLOCKABLE;
- spin_lock_irq(&current->sighand->siglock);
- saveset = current->blocked;
- siginitset(&current->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- regs->ARM_r0 = -EINTR;
-
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- if (do_signal(&saveset, regs, 0))
- return regs->ARM_r0;
- }
-}
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, struct pt_regs *regs)
-{
- sigset_t saveset, newset;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset, unewset, sizeof(newset)))
- return -EFAULT;
- sigdelsetmask(&newset, ~_BLOCKABLE);
-
- spin_lock_irq(&current->sighand->siglock);
- saveset = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
- regs->ARM_r0 = -EINTR;
-
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- if (do_signal(&saveset, regs, 0))
- return regs->ARM_r0;
- }
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction *act,
- struct old_sigaction *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- if (act) {
- old_sigset_t mask;
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
- return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
- return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
- }
-
- return ret;
-}
-
-/*
- * Do a signal return; undo the signal stack.
- */
-struct sigframe
-{
- struct sigcontext sc;
- unsigned long extramask[_NSIG_WORDS-1];
- unsigned long retcode;
-};
-
-struct rt_sigframe
-{
- struct siginfo *pinfo;
- void *puc;
- struct siginfo info;
- struct ucontext uc;
- unsigned long retcode;
-};
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc)
-{
- int err = 0;
-
- __get_user_error(regs->ARM_r0, &sc->arm_r0, err);
- __get_user_error(regs->ARM_r1, &sc->arm_r1, err);
- __get_user_error(regs->ARM_r2, &sc->arm_r2, err);
- __get_user_error(regs->ARM_r3, &sc->arm_r3, err);
- __get_user_error(regs->ARM_r4, &sc->arm_r4, err);
- __get_user_error(regs->ARM_r5, &sc->arm_r5, err);
- __get_user_error(regs->ARM_r6, &sc->arm_r6, err);
- __get_user_error(regs->ARM_r7, &sc->arm_r7, err);
- __get_user_error(regs->ARM_r8, &sc->arm_r8, err);
- __get_user_error(regs->ARM_r9, &sc->arm_r9, err);
- __get_user_error(regs->ARM_r10, &sc->arm_r10, err);
- __get_user_error(regs->ARM_fp, &sc->arm_fp, err);
- __get_user_error(regs->ARM_ip, &sc->arm_ip, err);
- __get_user_error(regs->ARM_sp, &sc->arm_sp, err);
- __get_user_error(regs->ARM_lr, &sc->arm_lr, err);
- __get_user_error(regs->ARM_pc, &sc->arm_pc, err);
-
- err |= !valid_user_regs(regs);
-
- return err;
-}
-
-asmlinkage int sys_sigreturn(struct pt_regs *regs)
-{
- struct sigframe *frame;
- sigset_t set;
-
- /*
- * Since we stacked the signal on a 64-bit boundary,
- * then 'sp' should be word aligned here. If it's
- * not, then the user is trying to mess with us.
- */
- if (regs->ARM_sp & 7)
- goto badframe;
-
- frame = (struct sigframe *)regs->ARM_sp;
-
- if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
- goto badframe;
- if (__get_user(set.sig[0], &frame->sc.oldmask)
- || (_NSIG_WORDS > 1
- && __copy_from_user(&set.sig[1], &frame->extramask,
- sizeof(frame->extramask))))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->sc))
- goto badframe;
-
- /* Send SIGTRAP if we're single-stepping */
- if (current->ptrace & PT_SINGLESTEP) {
- ptrace_cancel_bpt(current);
- send_sig(SIGTRAP, current, 1);
- }
-
- return regs->ARM_r0;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
-{
- struct rt_sigframe *frame;
- sigset_t set;
-
- /*
- * Since we stacked the signal on a 64-bit boundary,
- * then 'sp' should be word aligned here. If it's
- * not, then the user is trying to mess with us.
- */
- if (regs->ARM_sp & 7)
- goto badframe;
-
- frame = (struct rt_sigframe *)regs->ARM_sp;
-
- if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
- goto badframe;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
- goto badframe;
-
- /* Send SIGTRAP if we're single-stepping */
- if (current->ptrace & PT_SINGLESTEP) {
- ptrace_cancel_bpt(current);
- send_sig(SIGTRAP, current, 1);
- }
-
- return regs->ARM_r0;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-static int
-setup_sigcontext(struct sigcontext *sc, /*struct _fpstate *fpstate,*/
- struct pt_regs *regs, unsigned long mask)
-{
- int err = 0;
-
- __put_user_error(regs->ARM_r0, &sc->arm_r0, err);
- __put_user_error(regs->ARM_r1, &sc->arm_r1, err);
- __put_user_error(regs->ARM_r2, &sc->arm_r2, err);
- __put_user_error(regs->ARM_r3, &sc->arm_r3, err);
- __put_user_error(regs->ARM_r4, &sc->arm_r4, err);
- __put_user_error(regs->ARM_r5, &sc->arm_r5, err);
- __put_user_error(regs->ARM_r6, &sc->arm_r6, err);
- __put_user_error(regs->ARM_r7, &sc->arm_r7, err);
- __put_user_error(regs->ARM_r8, &sc->arm_r8, err);
- __put_user_error(regs->ARM_r9, &sc->arm_r9, err);
- __put_user_error(regs->ARM_r10, &sc->arm_r10, err);
- __put_user_error(regs->ARM_fp, &sc->arm_fp, err);
- __put_user_error(regs->ARM_ip, &sc->arm_ip, err);
- __put_user_error(regs->ARM_sp, &sc->arm_sp, err);
- __put_user_error(regs->ARM_lr, &sc->arm_lr, err);
- __put_user_error(regs->ARM_pc, &sc->arm_pc, err);
-
- __put_user_error(current->thread.trap_no, &sc->trap_no, err);
- __put_user_error(current->thread.error_code, &sc->error_code, err);
- __put_user_error(current->thread.address, &sc->fault_address, err);
- __put_user_error(mask, &sc->oldmask, err);
-
- return err;
-}
-
-static inline void *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize)
-{
- unsigned long sp = regs->ARM_sp;
-
- /*
- * This is the X/Open sanctioned signal stack switching.
- */
- if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp))
- sp = current->sas_ss_sp + current->sas_ss_size;
-
- /*
- * ATPCS B01 mandates 8-byte alignment
- */
- return (void *)((sp - framesize) & ~7);
-}
-
-static int
-setup_return(struct pt_regs *regs, struct k_sigaction *ka,
- unsigned long *rc, void *frame, int usig)
-{
- unsigned long handler = (unsigned long)ka->sa.sa_handler;
- unsigned long retcode;
-
- if (ka->sa.sa_flags & SA_RESTORER) {
- retcode = (unsigned long)ka->sa.sa_restorer;
- } else {
-
- if (__put_user((ka->sa.sa_flags & SA_SIGINFO)?SWI_SYS_RT_SIGRETURN:SWI_SYS_SIGRETURN, rc))
- return 1;
-
- retcode = ((unsigned long)rc);
- }
-
- regs->ARM_r0 = usig;
- regs->ARM_sp = (unsigned long)frame;
- regs->ARM_lr = retcode;
- regs->ARM_pc = handler & ~3;
-
- return 0;
-}
-
-static int
-setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs)
-{
- struct sigframe *frame = get_sigframe(ka, regs, sizeof(*frame));
- int err = 0;
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
- return 1;
-
- err |= setup_sigcontext(&frame->sc, /*&frame->fpstate,*/ regs, set->sig[0]);
-
- if (_NSIG_WORDS > 1) {
- err |= __copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask));
- }
-
- if (err == 0)
- err = setup_return(regs, ka, &frame->retcode, frame, usig);
-
- return err;
-}
-
-static int
-setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
-{
- struct rt_sigframe *frame = get_sigframe(ka, regs, sizeof(*frame));
- int err = 0;
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
- return 1;
-
- __put_user_error(&frame->info, &frame->pinfo, err);
- __put_user_error(&frame->uc, &frame->puc, err);
- err |= copy_siginfo_to_user(&frame->info, info);
-
- /* Clear all the bits of the ucontext we don't use. */
- err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));
-
- err |= setup_sigcontext(&frame->uc.uc_mcontext, /*&frame->fpstate,*/
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- if (err == 0)
- err = setup_return(regs, ka, &frame->retcode, frame, usig);
-
- if (err == 0) {
- /*
- * For realtime signals we must also set the second and third
- * arguments for the signal handler.
- * -- Peter Maydell <pmaydell@chiark.greenend.org.uk> 2000-12-06
- */
- regs->ARM_r1 = (unsigned long)frame->pinfo;
- regs->ARM_r2 = (unsigned long)frame->puc;
- }
-
- return err;
-}
-
-static inline void restart_syscall(struct pt_regs *regs)
-{
- regs->ARM_r0 = regs->ARM_ORIG_r0;
- regs->ARM_pc -= 4;
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void
-handle_signal(unsigned long sig, siginfo_t *info, sigset_t *oldset,
- struct pt_regs * regs, int syscall)
-{
- struct thread_info *thread = current_thread_info();
- struct task_struct *tsk = current;
- struct k_sigaction *ka = &tsk->sighand->action[sig-1];
- int usig = sig;
- int ret;
-
- /*
- * If we were from a system call, check for system call restarting...
- */
- if (syscall) {
- switch (regs->ARM_r0) {
- case -ERESTART_RESTARTBLOCK:
- current_thread_info()->restart_block.fn =
- do_no_restart_syscall;
- case -ERESTARTNOHAND:
- regs->ARM_r0 = -EINTR;
- break;
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->ARM_r0 = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- restart_syscall(regs);
- }
- }
-
- /*
- * translate the signal
- */
- if (usig < 32 && thread->exec_domain && thread->exec_domain->signal_invmap)
- usig = thread->exec_domain->signal_invmap[usig];
-
- /*
- * Set up the stack frame
- */
- if (ka->sa.sa_flags & SA_SIGINFO)
- ret = setup_rt_frame(usig, ka, info, oldset, regs);
- else
- ret = setup_frame(usig, ka, oldset, regs);
-
- /*
- * Check that the resulting registers are actually sane.
- */
- ret |= !valid_user_regs(regs);
-
- if (ret == 0) {
- if (ka->sa.sa_flags & SA_ONESHOT)
- ka->sa.sa_handler = SIG_DFL;
-
- spin_lock_irq(&tsk->sighand->siglock);
- sigorsets(&tsk->blocked, &tsk->blocked,
- &ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&tsk->blocked, sig);
- recalc_sigpending();
- spin_unlock_irq(&tsk->sighand->siglock);
- return;
- }
-
- force_sigsegv(sig, tsk);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-static int do_signal(sigset_t *oldset, struct pt_regs *regs, int syscall)
-{
- siginfo_t info;
- int signr;
- struct k_sigaction ka;
-
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return 0;
-
- if (current->ptrace & PT_SINGLESTEP)
- ptrace_cancel_bpt(current);
-
- signr = get_signal_to_deliver(&info, &ka, regs, NULL);
- if (signr > 0) {
- handle_signal(signr, &info, oldset, regs, syscall);
- if (current->ptrace & PT_SINGLESTEP)
- ptrace_set_bpt(current);
- return 1;
- }
-
- /*
- * No signal to deliver to the process - restart the syscall.
- */
- if (syscall) {
- if (regs->ARM_r0 == -ERESTART_RESTARTBLOCK) {
- u32 *usp;
-
- regs->ARM_sp -= 12;
- usp = (u32 *)regs->ARM_sp;
-
- put_user(regs->ARM_pc, &usp[0]);
- /* swi __NR_restart_syscall */
- put_user(0xef000000 | __NR_restart_syscall, &usp[1]);
- /* ldr pc, [sp], #12 */
-// FIXME!!! is #12 correct there?
- put_user(0xe49df00c, &usp[2]);
-
- regs->ARM_pc = regs->ARM_sp + 4;
- }
- if (regs->ARM_r0 == -ERESTARTNOHAND ||
- regs->ARM_r0 == -ERESTARTSYS ||
- regs->ARM_r0 == -ERESTARTNOINTR) {
- restart_syscall(regs);
- }
- }
- if (current->ptrace & PT_SINGLESTEP)
- ptrace_set_bpt(current);
- return 0;
-}
-
-asmlinkage void
-do_notify_resume(struct pt_regs *regs, unsigned int thread_flags, int syscall)
-{
- if (thread_flags & _TIF_SIGPENDING)
- do_signal(&current->blocked, regs, syscall);
-}
diff --git a/arch/arm26/kernel/sys_arm.c b/arch/arm26/kernel/sys_arm.c
deleted file mode 100644
index dc05aba58ba..00000000000
--- a/arch/arm26/kernel/sys_arm.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/*
- * linux/arch/arm26/kernel/sys_arm.c
- *
- * Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c
- * Copyright (C) 1995, 1996 Russell King.
- * Copyright (C) 2003 Ian Molton.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/arm
- * platform.
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-
-#include <asm/uaccess.h>
-#include <asm/ipc.h>
-
-extern unsigned long do_mremap(unsigned long addr, unsigned long old_len,
- unsigned long new_len, unsigned long flags,
- unsigned long new_addr);
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way unix traditionally does this, though.
- */
-asmlinkage int sys_pipe(unsigned long * fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
-
-/* common code for old and new mmaps */
-inline long do_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- int error = -EINVAL;
- struct file * file = NULL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-
- /*
- * If we are doing a fixed mapping, and address < FIRST_USER_ADDRESS,
- * then deny it.
- */
- if (flags & MAP_FIXED && addr < FIRST_USER_ADDRESS)
- goto out;
-
- error = -EBADF;
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
-struct mmap_arg_struct {
- unsigned long addr;
- unsigned long len;
- unsigned long prot;
- unsigned long flags;
- unsigned long fd;
- unsigned long offset;
-};
-
-asmlinkage int old_mmap(struct mmap_arg_struct *arg)
-{
- int error = -EFAULT;
- struct mmap_arg_struct a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- goto out;
-
- error = -EINVAL;
- if (a.offset & ~PAGE_MASK)
- goto out;
-
- error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT);
-out:
- return error;
-}
-
-asmlinkage unsigned long
-sys_arm_mremap(unsigned long addr, unsigned long old_len,
- unsigned long new_len, unsigned long flags,
- unsigned long new_addr)
-{
- unsigned long ret = -EINVAL;
-
- /*
- * If we are doing a fixed mapping, and address < FIRST_USER_ADDRESS,
- * then deny it.
- */
- if (flags & MREMAP_FIXED && new_addr < FIRST_USER_ADDRESS)
- goto out;
-
- down_write(&current->mm->mmap_sem);
- ret = do_mremap(addr, old_len, new_len, flags, new_addr);
- up_write(&current->mm->mmap_sem);
-
-out:
- return ret;
-}
-
-/*
- * Perform the select(nd, in, out, ex, tv) and mmap() system
- * calls.
- */
-
-struct sel_arg_struct {
- unsigned long n;
- fd_set *inp, *outp, *exp;
- struct timeval *tvp;
-};
-
-asmlinkage int old_select(struct sel_arg_struct *arg)
-{
- struct sel_arg_struct a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- return -EFAULT;
- /* sys_select() does the appropriate kernel locking */
- return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
- case SEMOP:
- return sys_semop (first, (struct sembuf *)ptr, second);
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void **) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
-
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf *) ptr,
- second, third);
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- if (!ptr)
- return -EINVAL;
- if (copy_from_user(&tmp,(struct ipc_kludge *) ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- return sys_msgrcv (first,
- (struct msgbuf *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second, (struct msqid_ds *) ptr);
-
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = do_shmat (first, (char *) ptr, second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong *) third);
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- return -EINVAL;
- return do_shmat (first, (char *) ptr,
- second, (ulong *) third);
- }
- case SHMDT:
- return sys_shmdt ((char *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds *) ptr);
- default:
- return -EINVAL;
- }
-}
-
-/* Fork a new task - this creates a new program thread.
- * This is called indirectly via a small wrapper
- */
-asmlinkage int sys_fork(struct pt_regs *regs)
-{
- return do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
-}
-
-/* Clone a task - this clones the calling program thread.
- * This is called indirectly via a small wrapper
- */
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, struct pt_regs *regs)
-{
- /*
- * We don't support SETTID / CLEARTID (FIXME!!! (nicked from arm32))
- */
- if (clone_flags & (CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID))
- return -EINVAL;
-
- if (!newsp)
- newsp = regs->ARM_sp;
-
- return do_fork(clone_flags, newsp, regs, 0, NULL, NULL);
-}
-
-asmlinkage int sys_vfork(struct pt_regs *regs)
-{
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL);
-}
-
-/* sys_execve() executes a new program.
- * This is called indirectly via a small wrapper
- */
-asmlinkage int sys_execve(char *filenamei, char **argv, char **envp, struct pt_regs *regs)
-{
- int error;
- char * filename;
-
- filename = getname(filenamei);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
- error = do_execve(filename, argv, envp, regs);
- putname(filename);
-out:
- return error;
-}
-
-/* FIXME - see if this is correct for arm26 */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
- struct pt_regs regs;
- int ret;
- memset(&regs, 0, sizeof(struct pt_regs));
- ret = do_execve((char *)filename, (char __user * __user *)argv, (char __user * __user *)envp, &regs);
- if (ret < 0)
- goto out;
-
- /*
- * Save argc to the register structure for userspace.
- */
- regs.ARM_r0 = ret;
-
- /*
- * We were successful. We won't be returning to our caller, but
- * instead to user space by manipulating the kernel stack.
- */
- asm( "add r0, %0, %1\n\t"
- "mov r1, %2\n\t"
- "mov r2, %3\n\t"
- "bl memmove\n\t" /* copy regs to top of stack */
- "mov r8, #0\n\t" /* not a syscall */
- "mov r9, %0\n\t" /* thread structure */
- "mov sp, r0\n\t" /* reposition stack pointer */
- "b ret_to_user"
- :
- : "r" (current_thread_info()),
- "Ir" (THREAD_SIZE - 8 - sizeof(regs)),
- "r" (&regs),
- "Ir" (sizeof(regs))
- : "r0", "r1", "r2", "r3", "ip", "memory");
-
- out:
- return ret;
-}
-
-EXPORT_SYMBOL(kernel_execve);
diff --git a/arch/arm26/kernel/time.c b/arch/arm26/kernel/time.c
deleted file mode 100644
index 0f1d57fbd3d..00000000000
--- a/arch/arm26/kernel/time.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- * linux/arch/arm26/kernel/time.c
- *
- * Copyright (C) 1991, 1992, 1995 Linus Torvalds
- * Modifications for ARM (C) 1994-2001 Russell King
- * Mods for ARM26 (C) 2003 Ian Molton
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This file contains the ARM-specific time handling details:
- * reading the RTC at bootup, etc...
- *
- * 1994-07-02 Alan Modra
- * fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime
- * 1998-12-20 Updated NTP code according to technical memorandum Jan '96
- * "A Kernel Model for Precision Timekeeping" by Dave Mills
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/timex.h>
-#include <linux/errno.h>
-#include <linux/profile.h>
-
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/ioc.h>
-
-/* this needs a better home */
-DEFINE_SPINLOCK(rtc_lock);
-
-/* change this if you have some constant time drift */
-#define USECS_PER_JIFFY (1000000/HZ)
-
-static int dummy_set_rtc(void)
-{
- return 0;
-}
-
-/*
- * hook for setting the RTC's idea of the current time.
- */
-int (*set_rtc)(void) = dummy_set_rtc;
-
-/*
- * Get time offset based on IOCs timer.
- * FIXME - if this is called with interrutps off, why the shennanigans
- * below ?
- */
-static unsigned long gettimeoffset(void)
-{
- unsigned int count1, count2, status;
- long offset;
-
- ioc_writeb (0, IOC_T0LATCH);
- barrier ();
- count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
- barrier ();
- status = ioc_readb(IOC_IRQREQA);
- barrier ();
- ioc_writeb (0, IOC_T0LATCH);
- barrier ();
- count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
-
- offset = count2;
- if (count2 < count1) {
- /*
- * We have not had an interrupt between reading count1
- * and count2.
- */
- if (status & (1 << 5))
- offset -= LATCH;
- } else if (count2 > count1) {
- /*
- * We have just had another interrupt between reading
- * count1 and count2.
- */
- offset -= LATCH;
- }
-
- offset = (LATCH - offset) * (tick_nsec / 1000);
- return (offset + LATCH/2) / LATCH;
-}
-
-static unsigned long next_rtc_update;
-
-/*
- * If we have an externally synchronized linux clock, then update
- * CMOS clock accordingly every ~11 minutes. set_rtc() has to be
- * called as close as possible to 500 ms before the new second
- * starts.
- */
-static inline void do_set_rtc(void)
-{
- if (!ntp_synced() || set_rtc == NULL)
- return;
-
-//FIXME - timespec.tv_sec is a time_t not unsigned long
- if (next_rtc_update &&
- time_before((unsigned long)xtime.tv_sec, next_rtc_update))
- return;
-
- if (xtime.tv_nsec < 500000000 - ((unsigned) tick_nsec >> 1) &&
- xtime.tv_nsec >= 500000000 + ((unsigned) tick_nsec >> 1))
- return;
-
- if (set_rtc())
- /*
- * rtc update failed. Try again in 60s
- */
- next_rtc_update = xtime.tv_sec + 60;
- else
- next_rtc_update = xtime.tv_sec + 660;
-}
-
-#define do_leds()
-
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
- usec = gettimeoffset();
- sec = xtime.tv_sec;
- usec += xtime.tv_nsec / 1000;
- } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
- /* usec may have gone up a lot: be safe */
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /*
- * This is revolting. We need to set "xtime" correctly. However, the
- * value in this location is the value at the most recent update of
- * wall time. Discover what correction gettimeofday() would have
- * done, and then undo it!
- */
- tv->tv_nsec -= 1000 * gettimeoffset();
-
- while (tv->tv_nsec < 0) {
- tv->tv_nsec += NSEC_PER_SEC;
- tv->tv_sec--;
- }
-
- xtime.tv_sec = tv->tv_sec;
- xtime.tv_nsec = tv->tv_nsec;
- ntp_clear();
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
- return 0;
-}
-
-EXPORT_SYMBOL(do_settimeofday);
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- do_timer(1);
-#ifndef CONFIG_SMP
- update_process_times(user_mode(regs));
-#endif
- do_set_rtc(); //FIME - EVERY timer IRQ?
- profile_tick(CPU_PROFILING, regs);
- return IRQ_HANDLED; //FIXME - is this right?
-}
-
-static struct irqaction timer_irq = {
- .name = "timer",
- .flags = IRQF_DISABLED,
- .handler = timer_interrupt,
-};
-
-extern void ioctime_init(void);
-
-/*
- * Set up timer interrupt.
- */
-void __init time_init(void)
-{
- ioc_writeb(LATCH & 255, IOC_T0LTCHL);
- ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
- ioc_writeb(0, IOC_T0GO);
-
-
- setup_irq(IRQ_TIMER, &timer_irq);
-}
-
diff --git a/arch/arm26/kernel/traps.c b/arch/arm26/kernel/traps.c
deleted file mode 100644
index 2911e2eae80..00000000000
--- a/arch/arm26/kernel/traps.c
+++ /dev/null
@@ -1,548 +0,0 @@
-/*
- * linux/arch/arm26/kernel/traps.c
- *
- * Copyright (C) 1995-2002 Russell King
- * Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds
- * Copyright (C) 2003 Ian Molton (ARM26)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * 'traps.c' handles hardware exceptions after we have saved some state in
- * 'linux/arch/arm26/lib/traps.S'. Mostly a debugging aid, but will probably
- * kill the offending process.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/personality.h>
-#include <linux/ptrace.h>
-#include <linux/elf.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <asm/atomic.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
-#include <linux/mutex.h>
-
-#include "ptrace.h"
-
-extern void c_backtrace (unsigned long fp, int pmode);
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
-
-const char *processor_modes[] = { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" };
-
-static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" "*bad reason*"};
-
-/*
- * Stack pointers should always be within the kernels view of
- * physical memory. If it is not there, then we can't dump
- * out any information relating to the stack.
- */
-static int verify_stack(unsigned long sp)
-{
- if (sp < PAGE_OFFSET || (sp > (unsigned long)high_memory && high_memory != 0))
- return -EFAULT;
-
- return 0;
-}
-
-/*
- * Dump out the contents of some memory nicely...
- */
-static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
-{
- unsigned long p = bottom & ~31;
- mm_segment_t fs;
- int i;
-
- /*
- * We need to switch to kernel mode so that we can use __get_user
- * to safely read from kernel space. Note that we now dump the
- * code first, just in case the backtrace kills us.
- */
- fs = get_fs();
- set_fs(KERNEL_DS);
-
- printk("%s", str);
- printk("(0x%08lx to 0x%08lx)\n", bottom, top);
-
- for (p = bottom & ~31; p < top;) {
- printk("%04lx: ", p & 0xffff);
-
- for (i = 0; i < 8; i++, p += 4) {
- unsigned int val;
-
- if (p < bottom || p >= top)
- printk(" ");
- else {
- __get_user(val, (unsigned long *)p);
- printk("%08x ", val);
- }
- }
- printk ("\n");
- }
-
- set_fs(fs);
-}
-
-static void dump_instr(struct pt_regs *regs)
-{
- unsigned long addr = instruction_pointer(regs);
- const int width = 8;
- mm_segment_t fs;
- int i;
-
- /*
- * We need to switch to kernel mode so that we can use __get_user
- * to safely read from kernel space. Note that we now dump the
- * code first, just in case the backtrace kills us.
- */
- fs = get_fs();
- set_fs(KERNEL_DS);
-
- printk("Code: ");
- for (i = -4; i < 1; i++) {
- unsigned int val, bad;
-
- bad = __get_user(val, &((u32 *)addr)[i]);
-
- if (!bad)
- printk(i == 0 ? "(%0*x) " : "%0*x ", width, val);
- else {
- printk("bad PC value.");
- break;
- }
- }
- printk("\n");
-
- set_fs(fs);
-}
-
-/*static*/ void __dump_stack(struct task_struct *tsk, unsigned long sp)
-{
- dump_mem("Stack: ", sp, 8192+(unsigned long)task_stack_page(tsk));
-}
-
-void dump_stack(void)
-{
-#ifdef CONFIG_DEBUG_ERRORS
- __backtrace();
-#endif
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-//FIXME - was a static fn
-void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
-{
- unsigned int fp;
- int ok = 1;
-
- printk("Backtrace: ");
- fp = regs->ARM_fp;
- if (!fp) {
- printk("no frame pointer");
- ok = 0;
- } else if (verify_stack(fp)) {
- printk("invalid frame pointer 0x%08x", fp);
- ok = 0;
- } else if (fp < (unsigned long)end_of_stack(tsk))
- printk("frame pointer underflow");
- printk("\n");
-
- if (ok)
- c_backtrace(fp, processor_mode(regs));
-}
-
-/* FIXME - this is probably wrong.. */
-void show_stack(struct task_struct *task, unsigned long *sp) {
- dump_mem("Stack: ", (unsigned long)sp, 8192+(unsigned long)task_stack_page(task));
-}
-
-DEFINE_SPINLOCK(die_lock);
-
-/*
- * This function is protected against re-entrancy.
- */
-NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
-{
- struct task_struct *tsk = current;
-
- console_verbose();
- spin_lock_irq(&die_lock);
-
- printk("Internal error: %s: %x\n", str, err);
- printk("CPU: %d\n", smp_processor_id());
- show_regs(regs);
- add_taint(TAINT_DIE);
- printk("Process %s (pid: %d, stack limit = 0x%p)\n",
- current->comm, current->pid, end_of_stack(tsk));
-
- if (!user_mode(regs) || in_interrupt()) {
- __dump_stack(tsk, (unsigned long)(regs + 1));
- dump_backtrace(regs, tsk);
- dump_instr(regs);
- }
-while(1);
- spin_unlock_irq(&die_lock);
- do_exit(SIGSEGV);
-}
-
-void die_if_kernel(const char *str, struct pt_regs *regs, int err)
-{
- if (user_mode(regs))
- return;
-
- die(str, regs, err);
-}
-
-static DEFINE_MUTEX(undef_mutex);
-static int (*undef_hook)(struct pt_regs *);
-
-int request_undef_hook(int (*fn)(struct pt_regs *))
-{
- int ret = -EBUSY;
-
- mutex_lock(&undef_mutex);
- if (undef_hook == NULL) {
- undef_hook = fn;
- ret = 0;
- }
- mutex_unlock(&undef_mutex);
-
- return ret;
-}
-
-int release_undef_hook(int (*fn)(struct pt_regs *))
-{
- int ret = -EINVAL;
-
- mutex_lock(&undef_mutex);
- if (undef_hook == fn) {
- undef_hook = NULL;
- ret = 0;
- }
- mutex_unlock(&undef_mutex);
-
- return ret;
-}
-
-static int undefined_extension(struct pt_regs *regs, unsigned int op)
-{
- switch (op) {
- case 1: /* 0xde01 / 0x?7f001f0 */
- ptrace_break(current, regs);
- return 0;
- }
- return 1;
-}
-
-asmlinkage void do_undefinstr(struct pt_regs *regs)
-{
- siginfo_t info;
- void *pc;
-
- regs->ARM_pc -= 4;
-
- pc = (unsigned long *)instruction_pointer(regs); /* strip PSR */
-
- if (user_mode(regs)) {
- u32 instr;
-
- get_user(instr, (u32 *)pc);
-
- if ((instr & 0x0fff00ff) == 0x07f000f0 &&
- undefined_extension(regs, (instr >> 8) & 255) == 0) {
- regs->ARM_pc += 4;
- return;
- }
- } else {
- if (undef_hook && undef_hook(regs) == 0) {
- regs->ARM_pc += 4;
- return;
- }
- }
-
-#ifdef CONFIG_DEBUG_USER
- printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",
- current->comm, current->pid, pc);
- dump_instr(regs);
-#endif
-
- current->thread.error_code = 0;
- current->thread.trap_no = 6;
-
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLOPC;
- info.si_addr = pc;
-
- force_sig_info(SIGILL, &info, current);
-
- die_if_kernel("Oops - undefined instruction", regs, 0);
-}
-
-asmlinkage void do_excpt(unsigned long address, struct pt_regs *regs, int mode)
-{
- siginfo_t info;
-
-#ifdef CONFIG_DEBUG_USER
- printk(KERN_INFO "%s (%d): address exception: pc=%08lx\n",
- current->comm, current->pid, instruction_pointer(regs));
- dump_instr(regs);
-#endif
-
- current->thread.error_code = 0;
- current->thread.trap_no = 11;
-
- info.si_signo = SIGBUS;
- info.si_errno = 0;
- info.si_code = BUS_ADRERR;
- info.si_addr = (void *)address;
-
- force_sig_info(SIGBUS, &info, current);
-
- die_if_kernel("Oops - address exception", regs, mode);
-}
-
-asmlinkage void do_unexp_fiq (struct pt_regs *regs)
-{
-#ifndef CONFIG_IGNORE_FIQ
- printk("Hmm. Unexpected FIQ received, but trying to continue\n");
- printk("You may have a hardware problem...\n");
-#endif
-}
-
-/*
- * bad_mode handles the impossible case in the vectors. If you see one of
- * these, then it's extremely serious, and could mean you have buggy hardware.
- * It never returns, and never tries to sync. We hope that we can at least
- * dump out some state information...
- */
-asmlinkage void bad_mode(struct pt_regs *regs, int reason, int proc_mode)
-{
- unsigned int vectors = vectors_base();
-
- console_verbose();
-
- printk(KERN_CRIT "Bad mode in %s handler detected: mode %s\n",
- handler[reason<5?reason:4], processor_modes[proc_mode]);
-
- /*
- * Dump out the vectors and stub routines. Maybe a better solution
- * would be to dump them out only if we detect that they are corrupted.
- */
- dump_mem(KERN_CRIT "Vectors: ", vectors, vectors + 0x40);
- dump_mem(KERN_CRIT "Stubs: ", vectors + 0x200, vectors + 0x4b8);
-
- die("Oops", regs, 0);
- local_irq_disable();
- panic("bad mode");
-}
-
-static int bad_syscall(int n, struct pt_regs *regs)
-{
- struct thread_info *thread = current_thread_info();
- siginfo_t info;
-
- if (current->personality != PER_LINUX && thread->exec_domain->handler) {
- thread->exec_domain->handler(n, regs);
- return regs->ARM_r0;
- }
-
-#ifdef CONFIG_DEBUG_USER
- printk(KERN_ERR "[%d] %s: obsolete system call %08x.\n",
- current->pid, current->comm, n);
- dump_instr(regs);
-#endif
-
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLTRP;
- info.si_addr = (void *)instruction_pointer(regs) - 4;
-
- force_sig_info(SIGILL, &info, current);
- die_if_kernel("Oops", regs, n);
- return regs->ARM_r0;
-}
-
-static inline void
-do_cache_op(unsigned long start, unsigned long end, int flags)
-{
- struct vm_area_struct *vma;
-
- if (end < start)
- return;
-
- vma = find_vma(current->active_mm, start);
- if (vma && vma->vm_start < end) {
- if (start < vma->vm_start)
- start = vma->vm_start;
- if (end > vma->vm_end)
- end = vma->vm_end;
- }
-}
-
-/*
- * Handle all unrecognised system calls.
- * 0x9f0000 - 0x9fffff are some more esoteric system calls
- */
-#define NR(x) ((__ARM_NR_##x) - __ARM_NR_BASE)
-asmlinkage int arm_syscall(int no, struct pt_regs *regs)
-{
- siginfo_t info;
-
- if ((no >> 16) != 0x9f)
- return bad_syscall(no, regs);
-
- switch (no & 0xffff) {
- case 0: /* branch through 0 */
- info.si_signo = SIGSEGV;
- info.si_errno = 0;
- info.si_code = SEGV_MAPERR;
- info.si_addr = NULL;
-
- force_sig_info(SIGSEGV, &info, current);
-
- die_if_kernel("branch through zero", regs, 0);
- return 0;
-
- case NR(breakpoint): /* SWI BREAK_POINT */
- ptrace_break(current, regs);
- return regs->ARM_r0;
-
- case NR(cacheflush):
- return 0;
-
- case NR(usr26):
- break;
-
- default:
- /* Calls 9f00xx..9f07ff are defined to return -ENOSYS
- if not implemented, rather than raising SIGILL. This
- way the calling program can gracefully determine whether
- a feature is supported. */
- if (no <= 0x7ff)
- return -ENOSYS;
- break;
- }
-#ifdef CONFIG_DEBUG_USER
- /*
- * experience shows that these seem to indicate that
- * something catastrophic has happened
- */
- printk("[%d] %s: arm syscall %d\n", current->pid, current->comm, no);
- dump_instr(regs);
- if (user_mode(regs)) {
- show_regs(regs);
- c_backtrace(regs->ARM_fp, processor_mode(regs));
- }
-#endif
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLTRP;
- info.si_addr = (void *)instruction_pointer(regs) - 4;
-
- force_sig_info(SIGILL, &info, current);
- die_if_kernel("Oops", regs, no);
- return 0;
-}
-
-void __bad_xchg(volatile void *ptr, int size)
-{
- printk("xchg: bad data size: pc 0x%p, ptr 0x%p, size %d\n",
- __builtin_return_address(0), ptr, size);
- BUG();
-}
-
-/*
- * A data abort trap was taken, but we did not handle the instruction.
- * Try to abort the user program, or panic if it was the kernel.
- */
-asmlinkage void
-baddataabort(int code, unsigned long instr, struct pt_regs *regs)
-{
- unsigned long addr = instruction_pointer(regs);
- siginfo_t info;
-
-#ifdef CONFIG_DEBUG_USER
- printk(KERN_ERR "[%d] %s: bad data abort: code %d instr 0x%08lx\n",
- current->pid, current->comm, code, instr);
- dump_instr(regs);
- show_pte(current->mm, addr);
-#endif
-
- info.si_signo = SIGILL;
- info.si_errno = 0;
- info.si_code = ILL_ILLOPC;
- info.si_addr = (void *)addr;
-
- force_sig_info(SIGILL, &info, current);
- die_if_kernel("unknown data abort code", regs, instr);
-}
-
-volatile void __bug(const char *file, int line, void *data)
-{
- printk(KERN_CRIT"kernel BUG at %s:%d!", file, line);
- if (data)
- printk(KERN_CRIT" - extra data = %p", data);
- printk("\n");
- *(int *)0 = 0;
-}
-
-void __readwrite_bug(const char *fn)
-{
- printk("%s called, but not implemented", fn);
- BUG();
-}
-
-void __pte_error(const char *file, int line, unsigned long val)
-{
- printk("%s:%d: bad pte %08lx.\n", file, line, val);
-}
-
-void __pmd_error(const char *file, int line, unsigned long val)
-{
- printk("%s:%d: bad pmd %08lx.\n", file, line, val);
-}
-
-void __pgd_error(const char *file, int line, unsigned long val)
-{
- printk("%s:%d: bad pgd %08lx.\n", file, line, val);
-}
-
-asmlinkage void __div0(void)
-{
- printk("Division by zero in kernel.\n");
- dump_stack();
-}
-
-void abort(void)
-{
- BUG();
-
- /* if that doesn't kill us, halt */
- panic("Oops failed to kill thread");
-}
-
-void __init trap_init(void)
-{
- extern void __trap_init(unsigned long);
- unsigned long base = vectors_base();
-
- __trap_init(base);
- if (base != 0)
- printk(KERN_DEBUG "Relocating machine vectors to 0x%08lx\n",
- base);
-}
diff --git a/arch/arm26/kernel/vmlinux-arm26-xip.lds.in b/arch/arm26/kernel/vmlinux-arm26-xip.lds.in
deleted file mode 100644
index 4ec715c25de..00000000000
--- a/arch/arm26/kernel/vmlinux-arm26-xip.lds.in
+++ /dev/null
@@ -1,136 +0,0 @@
-/* ld script to make ARM Linux kernel
- * taken from the i386 version by Russell King
- * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
- * borrowed from Russels ARM port by Ian Molton
- */
-
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(arm)
-ENTRY(stext)
-jiffies = jiffies_64;
-SECTIONS
-{
- . = TEXTADDR;
- .init : { /* Init code and data */
- _stext = .;
- __init_begin = .;
- _sinittext = .;
- *(.init.text)
- _einittext = .;
- __proc_info_begin = .;
- *(.proc.info)
- __proc_info_end = .;
- __arch_info_begin = .;
- *(.arch.info)
- __arch_info_end = .;
- __tagtable_begin = .;
- *(.taglist)
- __tagtable_end = .;
- . = ALIGN(16);
- __setup_start = .;
- *(.init.setup)
- __setup_end = .;
- __early_begin = .;
- *(__early_param)
- __early_end = .;
- __initcall_start = .;
- *(.initcall1.init)
- *(.initcall2.init)
- *(.initcall3.init)
- *(.initcall4.init)
- *(.initcall5.init)
- *(.initcall6.init)
- *(.initcall7.init)
- __initcall_end = .;
- __con_initcall_start = .;
- *(.con_initcall.init)
- __con_initcall_end = .;
-#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(32);
- __initramfs_start = .;
- usr/built-in.o(.init.ramfs)
- __initramfs_end = .;
-#endif
- . = ALIGN(32768);
- __init_end = .;
- }
-
- /DISCARD/ : { /* Exit code and data */
- *(.exit.text)
- *(.exit.data)
- *(.exitcall.exit)
- }
-
- .text : { /* Real text segment */
- _text = .; /* Text and read-only data */
- TEXT_TEXT
- SCHED_TEXT
- LOCK_TEXT /* FIXME - borrowed from arm32 - check*/
- *(.fixup)
- *(.gnu.warning)
- *(.rodata)
- *(.rodata.*)
- *(.glue_7)
- *(.glue_7t)
- *(.got) /* Global offset table */
-
- _etext = .; /* End of text section */
- }
-
- . = ALIGN(16);
- __ex_table : { /* Exception table */
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
- }
-
- RODATA
-
- _endtext = .;
-
- . = DATAADDR;
-
- _sdata = .;
-
- .data : {
- . = ALIGN(8192);
- /*
- * first, the init thread union, aligned
- * to an 8192 byte boundary. (see arm26/kernel/init_task.c)
- * FIXME - sould this be 32K aligned on arm26?
- */
- *(.init.task)
-
- /*
- * The cacheline aligned data
- */
- . = ALIGN(32);
- *(.data.cacheline_aligned)
-
- /*
- * and the usual data section
- */
- DATA_DATA
- CONSTRUCTORS
-
- *(.init.data)
-
- _edata = .;
- }
-
- .bss : {
- __bss_start = .; /* BSS */
- *(.bss)
- *(COMMON)
- _end = . ;
- }
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
-}
diff --git a/arch/arm26/kernel/vmlinux-arm26.lds.in b/arch/arm26/kernel/vmlinux-arm26.lds.in
deleted file mode 100644
index 6c44f6a17bf..00000000000
--- a/arch/arm26/kernel/vmlinux-arm26.lds.in
+++ /dev/null
@@ -1,129 +0,0 @@
-/* ld script to make ARM Linux kernel
- * taken from the i386 version by Russell King
- * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
- * borrowed from Russels ARM port by Ian Molton and subsequently modified.
- */
-
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(arm)
-ENTRY(stext)
-jiffies = jiffies_64;
-SECTIONS
-{
- . = TEXTADDR;
- .init : { /* Init code and data */
- _stext = .;
- __init_begin = .;
- _sinittext = .;
- *(.init.text)
- _einittext = .;
- __proc_info_begin = .;
- *(.proc.info)
- __proc_info_end = .;
- __arch_info_begin = .;
- *(.arch.info)
- __arch_info_end = .;
- __tagtable_begin = .;
- *(.taglist)
- __tagtable_end = .;
- *(.init.data)
- . = ALIGN(16);
- __setup_start = .;
- *(.init.setup)
- __setup_end = .;
- __early_begin = .;
- *(__early_param)
- __early_end = .;
- __initcall_start = .;
- *(.initcall1.init)
- *(.initcall2.init)
- *(.initcall3.init)
- *(.initcall4.init)
- *(.initcall5.init)
- *(.initcall6.init)
- *(.initcall7.init)
- __initcall_end = .;
- __con_initcall_start = .;
- *(.con_initcall.init)
- __con_initcall_end = .;
-#ifdef CONFIG_BLK_DEV_INITRD
- . = ALIGN(32);
- __initramfs_start = .;
- usr/built-in.o(.init.ramfs)
- __initramfs_end = .;
-#endif
- . = ALIGN(32768);
- __init_end = .;
- }
-
- /DISCARD/ : { /* Exit code and data */
- *(.exit.text)
- *(.exit.data)
- *(.exitcall.exit)
- }
-
- .text : { /* Real text segment */
- _text = .; /* Text and read-only data */
- TEXT_TEXT
- SCHED_TEXT
- LOCK_TEXT
- *(.fixup)
- *(.gnu.warning)
- *(.rodata)
- *(.rodata.*)
- *(.glue_7)
- *(.glue_7t)
- *(.got) /* Global offset table */
-
- _etext = .; /* End of text section */
- }
-
- . = ALIGN(16);
- __ex_table : { /* Exception table */
- __start___ex_table = .;
- *(__ex_table)
- __stop___ex_table = .;
- }
-
- RODATA
-
- . = ALIGN(8192);
-
- .data : {
- /*
- * first, the init task union, aligned
- * to an 8192 byte boundary. (see arm26/kernel/init_task.c)
- */
- *(.init.task)
-
- /*
- * The cacheline aligned data
- */
- . = ALIGN(32);
- *(.data.cacheline_aligned)
-
- /*
- * and the usual data section
- */
- DATA_DATA
- CONSTRUCTORS
-
- _edata = .;
- }
-
- .bss : {
- __bss_start = .; /* BSS */
- *(.bss)
- *(COMMON)
- _end = . ;
- }
- /* Stabs debugging sections. */
- .stab 0 : { *(.stab) }
- .stabstr 0 : { *(.stabstr) }
- .stab.excl 0 : { *(.stab.excl) }
- .stab.exclstr 0 : { *(.stab.exclstr) }
- .stab.index 0 : { *(.stab.index) }
- .stab.indexstr 0 : { *(.stab.indexstr) }
- .comment 0 : { *(.comment) }
-}
diff --git a/arch/arm26/kernel/vmlinux.lds.S b/arch/arm26/kernel/vmlinux.lds.S
deleted file mode 100644
index 1fa39f02e07..00000000000
--- a/arch/arm26/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,11 +0,0 @@
-
-#ifdef CONFIG_XIP_KERNEL
-
-#include "vmlinux-arm26-xip.lds.in"
-
-#else
-
-#include "vmlinux-arm26.lds.in"
-
-#endif
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-18 11:52:14 +0000