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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-02-25 22:41:00 -0500
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-02-25 22:41:00 -0500
commit874f2f997dbe041a6c6e509dae8656ed9022d65d (patch)
tree61898165882041ef7f9beaf2ef6663a1a4d3c29a /drivers/acpi/processor_idle.c
parent071c06cb570d38efe23a124e885f2f3e643a9206 (diff)
parent6ebdc661b608671e9ca572af8bb42d58108cc008 (diff)
Merge commit 'origin/master' into next
Manual merge of: drivers/char/hvc_console.c drivers/char/hvc_console.h
Diffstat (limited to 'drivers/acpi/processor_idle.c')
-rw-r--r--drivers/acpi/processor_idle.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 7c0441f63b39..cc978a8c00b7 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -110,6 +110,14 @@ static struct dmi_system_id __cpuinitdata processor_power_dmi_table[] = {
110 DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"), 110 DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
111 DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")}, 111 DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
112 (void *)2}, 112 (void *)2},
113 { set_max_cstate, "Pavilion zv5000", {
114 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
115 DMI_MATCH(DMI_PRODUCT_NAME,"Pavilion zv5000 (DS502A#ABA)")},
116 (void *)1},
117 { set_max_cstate, "Asus L8400B", {
118 DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
119 DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
120 (void *)1},
113 {}, 121 {},
114}; 122};
115 123
@@ -872,12 +880,14 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
872 return(acpi_idle_enter_c1(dev, state)); 880 return(acpi_idle_enter_c1(dev, state));
873 881
874 local_irq_disable(); 882 local_irq_disable();
875 current_thread_info()->status &= ~TS_POLLING; 883 if (cx->entry_method != ACPI_CSTATE_FFH) {
876 /* 884 current_thread_info()->status &= ~TS_POLLING;
877 * TS_POLLING-cleared state must be visible before we test 885 /*
878 * NEED_RESCHED: 886 * TS_POLLING-cleared state must be visible before we test
879 */ 887 * NEED_RESCHED:
880 smp_mb(); 888 */
889 smp_mb();
890 }
881 891
882 if (unlikely(need_resched())) { 892 if (unlikely(need_resched())) {
883 current_thread_info()->status |= TS_POLLING; 893 current_thread_info()->status |= TS_POLLING;
@@ -957,12 +967,14 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
957 } 967 }
958 968
959 local_irq_disable(); 969 local_irq_disable();
960 current_thread_info()->status &= ~TS_POLLING; 970 if (cx->entry_method != ACPI_CSTATE_FFH) {
961 /* 971 current_thread_info()->status &= ~TS_POLLING;
962 * TS_POLLING-cleared state must be visible before we test 972 /*
963 * NEED_RESCHED: 973 * TS_POLLING-cleared state must be visible before we test
964 */ 974 * NEED_RESCHED:
965 smp_mb(); 975 */
976 smp_mb();
977 }
966 978
967 if (unlikely(need_resched())) { 979 if (unlikely(need_resched())) {
968 current_thread_info()->status |= TS_POLLING; 980 current_thread_info()->status |= TS_POLLING;