tree e741dfb082e94685c6cb0d1ccc3616c216af7c7a
parent fd899c0cc725387992ccfc83fb6f70505c36cbeb
author Michael Ellerman <[EMAIL PROTECTED]> Fri, 08 Jul 2005 07:56:29 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Fri, 08 Jul 2005 08:23:40 -0700
[PATCH] ppc64: Move iSeries_idle() into iSeries_setup.c
Move iSeries_idle() into iSeries_setup.c, no one else needs to know about it.
Signed-off-by: Michael Ellerman <[EMAIL PROTECTED]>
Signed-off-by: Anton Blanchard <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
arch/ppc64/kernel/iSeries_setup.c | 81 +++++++++++++++++++++++++++++++++++
arch/ppc64/kernel/idle.c | 86 --------------------------------------
2 files changed, 81 insertions(+), 86 deletions(-)
diff --git a/arch/ppc64/kernel/iSeries_setup.c
b/arch/ppc64/kernel/iSeries_setup.c
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -834,6 +834,87 @@ static int __init iSeries_src_init(void)
late_initcall(iSeries_src_init);
+static unsigned long maxYieldTime = 0;
+static unsigned long minYieldTime = 0xffffffffffffffffUL;
+
+static inline void process_iSeries_events(void)
+{
+ asm volatile ("li 0,0x5555; sc" : : : "r0", "r3");
+}
+
+static void yield_shared_processor(void)
+{
+ unsigned long tb;
+ unsigned long yieldTime;
+
+ HvCall_setEnabledInterrupts(HvCall_MaskIPI |
+ HvCall_MaskLpEvent |
+ HvCall_MaskLpProd |
+ HvCall_MaskTimeout);
+
+ tb = get_tb();
+ /* Compute future tb value when yield should expire */
+ HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);
+
+ yieldTime = get_tb() - tb;
+ if (yieldTime > maxYieldTime)
+ maxYieldTime = yieldTime;
+
+ if (yieldTime < minYieldTime)
+ minYieldTime = yieldTime;
+
+ /*
+ * The decrementer stops during the yield. Force a fake decrementer
+ * here and let the timer_interrupt code sort out the actual time.
+ */
+ get_paca()->lppaca.int_dword.fields.decr_int = 1;
+ process_iSeries_events();
+}
+
+static int iSeries_idle(void)
+{
+ struct paca_struct *lpaca;
+ long oldval;
+
+ /* ensure iSeries run light will be out when idle */
+ ppc64_runlatch_off();
+
+ lpaca = get_paca();
+
+ while (1) {
+ if (lpaca->lppaca.shared_proc) {
+ if (hvlpevent_is_pending())
+ process_iSeries_events();
+ if (!need_resched())
+ yield_shared_processor();
+ } else {
+ oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
+
+ if (!oldval) {
+ set_thread_flag(TIF_POLLING_NRFLAG);
+
+ while (!need_resched()) {
+ HMT_medium();
+ if (hvlpevent_is_pending())
+ process_iSeries_events();
+ HMT_low();
+ }
+
+ HMT_medium();
+ clear_thread_flag(TIF_POLLING_NRFLAG);
+ } else {
+ set_need_resched();
+ }
+ }
+
+ ppc64_runlatch_on();
+ schedule();
+ ppc64_runlatch_off();
+ }
+
+ return 0;
+}
+
#ifndef CONFIG_PCI
void __init iSeries_init_IRQ(void) { }
#endif
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -39,90 +39,6 @@ extern void power4_idle(void);
static int (*idle_loop)(void);
-#ifdef CONFIG_PPC_ISERIES
-static unsigned long maxYieldTime = 0;
-static unsigned long minYieldTime = 0xffffffffffffffffUL;
-
-static inline void process_iSeries_events(void)
-{
- asm volatile ("li 0,0x5555; sc" : : : "r0", "r3");
-}
-
-static void yield_shared_processor(void)
-{
- unsigned long tb;
- unsigned long yieldTime;
-
- HvCall_setEnabledInterrupts(HvCall_MaskIPI |
- HvCall_MaskLpEvent |
- HvCall_MaskLpProd |
- HvCall_MaskTimeout);
-
- tb = get_tb();
- /* Compute future tb value when yield should expire */
- HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy);
-
- yieldTime = get_tb() - tb;
- if (yieldTime > maxYieldTime)
- maxYieldTime = yieldTime;
-
- if (yieldTime < minYieldTime)
- minYieldTime = yieldTime;
-
- /*
- * The decrementer stops during the yield. Force a fake decrementer
- * here and let the timer_interrupt code sort out the actual time.
- */
- get_paca()->lppaca.int_dword.fields.decr_int = 1;
- process_iSeries_events();
-}
-
-static int iSeries_idle(void)
-{
- struct paca_struct *lpaca;
- long oldval;
-
- /* ensure iSeries run light will be out when idle */
- ppc64_runlatch_off();
-
- lpaca = get_paca();
-
- while (1) {
- if (lpaca->lppaca.shared_proc) {
- if (hvlpevent_is_pending())
- process_iSeries_events();
- if (!need_resched())
- yield_shared_processor();
- } else {
- oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
-
- if (!oldval) {
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- while (!need_resched()) {
- HMT_medium();
- if (hvlpevent_is_pending())
- process_iSeries_events();
- HMT_low();
- }
-
- HMT_medium();
- clear_thread_flag(TIF_POLLING_NRFLAG);
- } else {
- set_need_resched();
- }
- }
-
- ppc64_runlatch_on();
- schedule();
- ppc64_runlatch_off();
- }
-
- return 0;
-}
-
-#else
-
int default_idle(void)
{
long oldval;
@@ -305,8 +221,6 @@ int native_idle(void)
return 0;
}
-#endif /* CONFIG_PPC_ISERIES */
-
void cpu_idle(void)
{
BUG_ON(NULL == ppc_md.idle_loop);
-
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