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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 11:39:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 11:39:19 -0800
commit81d6e59dabb1ae0c782e9eb7e3d88f699d25b314 (patch)
tree532afd14c119f1c95206ef0d23db9c4c26a0aa34 /arch/sh/kernel/process_32.c
parent4a6908a3a050aacc9c3a2f36b276b46c0629ad91 (diff)
parent59de580af1c2fd671b0cb27c41ff958859ae5288 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (132 commits) sh: oprofile: Fix up the module build. sh: add UIO support for JPU on SH7722. serial: sh-sci: Fix up port pinmux for SH7366. sh: mach-rsk: Use uImage generation by default for rsk7201/7203. sh: mach-sh03: Fix up pata_platform build breakage. sh: enable deferred io LCDC on Migo-R video: sh_mobile_lcdcfb deferred io support video: deferred io with physically contiguous memory video: deferred io cleanup video: fix deferred io fsync() sh: add LCDC interrupt configuration to AP325 and Migo-R sh_mobile_lcdc: use FB_SYS helpers instead of FB_CFB sh: split coherent pages sh: dma: Kill off ISA DMA wrapper. sh: Conditionalize the code dumper on CONFIG_DUMP_CODE. sh: Kill off the unused SH_ALPHANUMERIC debug option. sh: Enable skipping of bss on debug platforms for sh32 also. doc: Update sh cpufreq documentation. sh: mrshpc_setup_windows() needs to be inline. serial: sh-sci: sci_poll_get_char() is only used by CONFIG_CONSOLE_POLL. ...
Diffstat (limited to 'arch/sh/kernel/process_32.c')
-rw-r--r--arch/sh/kernel/process_32.c81
1 files changed, 7 insertions, 74 deletions
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index b965f0282c7..ddafbbbab2a 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -32,65 +32,8 @@
#include <asm/fpu.h>
#include <asm/syscalls.h>
-static int hlt_counter;
int ubc_usercnt = 0;
-void (*pm_idle)(void);
-void (*pm_power_off)(void);
-EXPORT_SYMBOL(pm_power_off);
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-__setup("nohlt", nohlt_setup);
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-__setup("hlt", hlt_setup);
-
-static void default_idle(void)
-{
- if (!hlt_counter) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
- smp_mb__after_clear_bit();
- set_bl_bit();
- while (!need_resched())
- cpu_sleep();
- clear_bl_bit();
- set_thread_flag(TIF_POLLING_NRFLAG);
- } else
- while (!need_resched())
- cpu_relax();
-}
-
-void cpu_idle(void)
-{
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- /* endless idle loop with no priority at all */
- while (1) {
- void (*idle)(void) = pm_idle;
-
- if (!idle)
- idle = default_idle;
-
- tick_nohz_stop_sched_tick(1);
- while (!need_resched())
- idle();
- tick_nohz_restart_sched_tick();
-
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- check_pgt_cache();
- }
-}
-
void machine_restart(char * __unused)
{
/* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
@@ -115,8 +58,8 @@ void machine_power_off(void)
void show_regs(struct pt_regs * regs)
{
printk("\n");
- printk("Pid : %d, Comm: %20s\n", task_pid_nr(current), current->comm);
- printk("CPU : %d %s (%s %.*s)\n",
+ printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm);
+ printk("CPU : %d \t\t%s (%s %.*s)\n\n",
smp_processor_id(), print_tainted(), init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
@@ -148,26 +91,16 @@ void show_regs(struct pt_regs * regs)
regs->mach, regs->macl, regs->gbr, regs->pr);
show_trace(NULL, (unsigned long *)regs->regs[15], regs);
+ show_code(regs);
}
/*
* Create a kernel thread
*/
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- */
-extern void kernel_thread_helper(void);
-__asm__(".align 5\n"
- "kernel_thread_helper:\n\t"
- "jsr @r5\n\t"
- " nop\n\t"
- "mov.l 1f, r1\n\t"
- "jsr @r1\n\t"
- " mov r0, r4\n\t"
- ".align 2\n\t"
- "1:.long do_exit");
+ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
+{
+ do_exit(fn(arg));
+}
/* Don't use this in BL=1(cli). Or else, CPU resets! */
int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)