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author | Ingo Molnar <mingo@elte.hu> | 2010-08-02 08:29:56 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-08-02 08:31:54 +0200 |
commit | 3772b734720e1a3f2dc1d95cfdfaa5332f4ccf01 (patch) | |
tree | a1a8cc85948c086aa12a1d8014151a7ca7c04ea8 /drivers/acpi/processor_idle.c | |
parent | 9fc3af467d0749989518a23f7289a6f44e5cb214 (diff) | |
parent | 9fe6206f400646a2322096b56c59891d530e8d51 (diff) | |
download | kernel_samsung_crespo-3772b734720e1a3f2dc1d95cfdfaa5332f4ccf01.zip kernel_samsung_crespo-3772b734720e1a3f2dc1d95cfdfaa5332f4ccf01.tar.gz kernel_samsung_crespo-3772b734720e1a3f2dc1d95cfdfaa5332f4ccf01.tar.bz2 |
Merge commit 'v2.6.35' into perf/core
Conflicts:
tools/perf/Makefile
tools/perf/util/hist.c
Merge reason: Resolve the conflicts and update to latest upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
-rw-r--r-- | drivers/acpi/processor_idle.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index b1b3856..e9a8026 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -76,14 +76,19 @@ static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; module_param(max_cstate, uint, 0000); static unsigned int nocst __read_mostly; module_param(nocst, uint, 0000); +static int bm_check_disable __read_mostly; +module_param(bm_check_disable, uint, 0000); static unsigned int latency_factor __read_mostly = 2; module_param(latency_factor, uint, 0644); +#ifdef CONFIG_ACPI_PROCFS static u64 us_to_pm_timer_ticks(s64 t) { return div64_u64(t * PM_TIMER_FREQUENCY, 1000000); } +#endif + /* * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3. * For now disable this. Probably a bug somewhere else. @@ -763,6 +768,9 @@ static int acpi_idle_bm_check(void) { u32 bm_status = 0; + if (bm_check_disable) + return 0; + acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, &bm_status); if (bm_status) acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_STATUS, 1); @@ -947,7 +955,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (acpi_idle_suspend) return(acpi_idle_enter_c1(dev, state)); - if (acpi_idle_bm_check()) { + if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (dev->safe_state) { dev->last_state = dev->safe_state; return dev->safe_state->enter(dev, dev->safe_state); |