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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-05-15 10:26:50 -0400
commit12e04ffcd93b25dfd726d46338c2ee7d23de556e (patch)
treef91479a62805619168994fd3ee55e3ffa23fc24e /arch/sparc/kernel/process_32.c
parent9eff37a8713939f218ab8bf0dc93f1d67af7b8b4 (diff)
parentf722406faae2d073cc1d01063d1123c35425939e (diff)
Merge tag 'v3.10-rc1' into stable/for-linus-3.10
Linux 3.10-rc1 * tag 'v3.10-rc1': (12273 commits) Linux 3.10-rc1 [SCSI] qla2xxx: Update firmware link in Kconfig file. [SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type [SCSI] pm80xx: thermal, sas controller config and error handling update [SCSI] pm80xx: NCQ error handling changes [SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers [SCSI] pm80xx: Changed module name and debug messages update [SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it [SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone [SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files [SCSI] pm80xx: MSI-X implementation for using 64 interrupts [SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve [SCSI] pm80xx: Multiple inbound/outbound queue configuration [SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC [SCSI] lpfc: fix up Kconfig dependencies [SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd dm cache: set config value dm cache: move config fns dm thin: generate event when metadata threshold passed ...
Diffstat (limited to 'arch/sparc/kernel/process_32.c')
-rw-r--r--arch/sparc/kernel/process_32.c44
1 files changed, 13 insertions, 31 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 62eede13831..fdd819dfdac 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -64,23 +64,12 @@ extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *);
struct task_struct *last_task_used_math = NULL;
struct thread_info *current_set[NR_CPUS];
-/*
- * the idle loop on a Sparc... ;)
- */
-void cpu_idle(void)
+/* Idle loop support. */
+void arch_cpu_idle(void)
{
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- /* endless idle loop with no priority at all */
- for (;;) {
- while (!need_resched()) {
- if (sparc_idle)
- (*sparc_idle)();
- else
- cpu_relax();
- }
- schedule_preempt_disabled();
- }
+ if (sparc_idle)
+ (*sparc_idle)();
+ local_irq_enable();
}
/* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */
@@ -123,6 +112,8 @@ void show_regs(struct pt_regs *r)
{
struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14];
+ show_regs_print_info(KERN_DEFAULT);
+
printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
r->psr, r->pc, r->npc, r->y, print_tainted());
printk("PC: <%pS>\n", (void *) r->pc);
@@ -153,11 +144,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
struct reg_window32 *rw;
int count = 0;
- if (tsk != NULL)
- task_base = (unsigned long) task_stack_page(tsk);
- else
- task_base = (unsigned long) current_thread_info();
+ if (!tsk)
+ tsk = current;
+ if (tsk == current && !_ksp)
+ __asm__ __volatile__("mov %%fp, %0" : "=r" (_ksp));
+
+ task_base = (unsigned long) task_stack_page(tsk);
fp = (unsigned long) _ksp;
do {
/* Bogus frame pointer? */
@@ -173,17 +166,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
printk("\n");
}
-void dump_stack(void)
-{
- unsigned long *ksp;
-
- __asm__ __volatile__("mov %%fp, %0"
- : "=r" (ksp));
- show_stack(current, ksp);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
/*
* Note: sparc64 has a pretty intricated thread_saved_pc, check it out.
*/