#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/cpu.h>
#include <linux/elfcore.h>
#include <linux/pm.h>
+#include <linux/tick.h>
+#include <linux/utsname.h>
#include <asm/leds.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/mach/time.h>
-extern const char *processor_modes[];
+static const char *processor_modes[] = {
+ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
+ "UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26",
+ "USER_32", "FIQ_32" , "IRQ_32" , "SVC_32" , "UK4_32" , "UK5_32" , "UK6_32" , "ABT_32" ,
+ "UK8_32" , "UK9_32" , "UK10_32", "UND_32" , "UK12_32", "UK13_32", "UK14_32", "SYS_32"
+};
+
extern void setup_mm_for_reboot(char mode);
static volatile int hlt_counter;
if (!idle)
idle = default_idle;
leds_event(led_idle_start);
+ tick_nohz_stop_sched_tick();
while (!need_resched())
idle();
leds_event(led_idle_end);
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
void __show_regs(struct pt_regs *regs)
{
- unsigned long flags = condition_codes(regs);
+ unsigned long flags;
+ char buf[64];
- printk("CPU: %d\n", smp_processor_id());
+ printk("CPU: %d %s (%s %.*s)\n",
+ smp_processor_id(), print_tainted(), init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->ARM_lr);
- printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
+ printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\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);
+ regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr,
+ 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("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%s Segment %s\n",
- interrupts_enabled(regs) ? "n" : "ff",
+
+ flags = regs->ARM_cpsr;
+ buf[0] = flags & PSR_N_BIT ? 'N' : 'n';
+ buf[1] = flags & PSR_Z_BIT ? 'Z' : 'z';
+ buf[2] = flags & PSR_C_BIT ? 'C' : 'c';
+ buf[3] = flags & PSR_V_BIT ? 'V' : 'v';
+ buf[4] = '\0';
+
+ printk("Flags: %s IRQs o%s FIQs o%s Mode %s%s Segment %s\n",
+ buf, interrupts_enabled(regs) ? "n" : "ff",
fast_interrupts_enabled(regs) ? "n" : "ff",
processor_modes[processor_mode(regs)],
thumb_mode(regs) ? " (T)" : "",
get_fs() == get_ds() ? "kernel" : "user");
-#if CONFIG_CPU_CP15
+#ifdef CONFIG_CPU_CP15
{
unsigned int ctrl;
- __asm__ (
- " mrc p15, 0, %0, c1, c0\n"
- : "=r" (ctrl));
- printk("Control: %04X\n", ctrl);
- }
+
+ buf[0] = '\0';
#ifdef CONFIG_CPU_CP15_MMU
- {
- unsigned int transbase, dac;
- __asm__ (
- " mrc p15, 0, %0, c2, c0\n"
- " mrc p15, 0, %1, c3, c0\n"
- : "=r" (transbase), "=r" (dac));
- printk("Table: %08X DAC: %08X\n",
- transbase, dac);
- }
+ {
+ unsigned int transbase, dac;
+ asm("mrc p15, 0, %0, c2, c0\n\t"
+ "mrc p15, 0, %1, c3, c0\n"
+ : "=r" (transbase), "=r" (dac));
+ snprintf(buf, sizeof(buf), " Table: %08x DAC: %08x",
+ transbase, dac);
+ }
#endif
+ asm("mrc p15, 0, %0, c1, c0\n" : "=r" (ctrl));
+
+ printk("Control: %08x%s\n", ctrl, buf);
+ }
#endif
}
(unsigned long)regs->fpcr);
}
-/*
- * Task structure and kernel stack allocation.
- */
-struct thread_info_list {
- unsigned long *head;
- unsigned int nr;
-};
-
-static DEFINE_PER_CPU(struct thread_info_list, thread_info_list) = { NULL, 0 };
-
-#define EXTRA_TASK_STRUCT 4
-
-struct thread_info *alloc_thread_info(struct task_struct *task)
-{
- struct thread_info *thread = NULL;
-
- if (EXTRA_TASK_STRUCT) {
- struct thread_info_list *th = &get_cpu_var(thread_info_list);
- unsigned long *p = th->head;
-
- if (p) {
- th->head = (unsigned long *)p[0];
- th->nr -= 1;
- }
- put_cpu_var(thread_info_list);
-
- thread = (struct thread_info *)p;
- }
-
- if (!thread)
- thread = (struct thread_info *)
- __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER);
-
-#ifdef CONFIG_DEBUG_STACK_USAGE
- /*
- * The stack must be cleared if you want SYSRQ-T to
- * give sensible stack usage information
- */
- if (thread)
- memzero(thread, THREAD_SIZE);
-#endif
- return thread;
-}
-
-void free_thread_info(struct thread_info *thread)
-{
- if (EXTRA_TASK_STRUCT) {
- struct thread_info_list *th = &get_cpu_var(thread_info_list);
- if (th->nr < EXTRA_TASK_STRUCT) {
- unsigned long *p = (unsigned long *)thread;
- p[0] = (unsigned long)th->head;
- th->head = p;
- th->nr += 1;
- put_cpu_var(thread_info_list);
- return;
- }
- put_cpu_var(thread_info_list);
- }
- free_pages((unsigned long)thread, THREAD_SIZE_ORDER);
-}
-
/*
* Free current thread data structures etc..
*/
projects / mirror_ubuntu-jammy-kernel.git / blobdiff