diff options
| author | Alex Chiang <achiang@hp.com> | 2010-02-22 12:11:39 -0700 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2010-03-14 21:17:22 -0400 |
| commit | d8191fa4a33fdc817277da4f2b7f771ff605a41c (patch) | |
| tree | d72667311fcaea0fbfc7c9a8e71bd6b612af215c | |
| parent | 3b1da4c5d1032ebc29fec8bd8f592ba6589be8ed (diff) | |
| download | blackbird-op-linux-d8191fa4a33fdc817277da4f2b7f771ff605a41c.tar.gz blackbird-op-linux-d8191fa4a33fdc817277da4f2b7f771ff605a41c.zip | |
ACPI: processor: driver doesn't need to evaluate _PDC
Now that the early _PDC evaluation path knows how to correctly
evaluate _PDC on only physically present processors, there's no
need for the processor driver to evaluate it later when it loads.
To cover the hotplug case, push _PDC evaluation down into the
hotplug paths.
Cc: x86@kernel.org
Cc: Tony Luck <tony.luck@intel.com>
Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | arch/ia64/kernel/acpi.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 3 | ||||
| -rw-r--r-- | drivers/acpi/processor_core.c | 7 | ||||
| -rw-r--r-- | drivers/acpi/processor_driver.c | 3 |
4 files changed, 6 insertions, 10 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index a7ca07f3754e..f1c9f70b4e45 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -44,6 +44,7 @@ #include <linux/efi.h> #include <linux/mmzone.h> #include <linux/nodemask.h> +#include <acpi/processor.h> #include <asm/io.h> #include <asm/iosapic.h> #include <asm/machvec.h> @@ -907,6 +908,8 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu) cpu_set(cpu, cpu_present_map); ia64_cpu_to_sapicid[cpu] = physid; + acpi_processor_set_pdc(handle); + *pcpu = cpu; return (0); } diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index a54d714545ff..d635a93ae59c 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -490,6 +490,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) * ACPI based hotplug support for CPU */ #ifdef CONFIG_ACPI_HOTPLUG_CPU +#include <acpi/processor.h> static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) { @@ -567,6 +568,8 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu) goto free_new_map; } + acpi_processor_set_pdc(handle); + cpu = cpumask_first(new_map); acpi_map_cpu2node(handle, cpu, physid); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index ef34faad6003..626c75479868 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -317,8 +317,6 @@ acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in) return status; } -static int early_pdc_done; - void acpi_processor_set_pdc(acpi_handle handle) { struct acpi_object_list *obj_list; @@ -326,9 +324,6 @@ void acpi_processor_set_pdc(acpi_handle handle) if (arch_has_acpi_pdc() == false) return; - if (early_pdc_done) - return; - obj_list = acpi_processor_alloc_pdc(); if (!obj_list) return; @@ -369,6 +364,4 @@ void __init acpi_early_processor_set_pdc(void) acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, early_init_pdc, NULL, NULL, NULL); - - early_pdc_done = 1; } diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 7eedf7475f4e..b5658cdce27f 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -608,9 +608,6 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) goto err_remove_fs; } - /* _PDC call should be done before doing anything else (if reqd.). */ - acpi_processor_set_pdc(pr->handle); - #ifdef CONFIG_CPU_FREQ acpi_processor_ppc_has_changed(pr, 0); #endif |
