diff options
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 59 |
1 files changed, 8 insertions, 51 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index e854582f29a..cfc8aba72f8 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -31,15 +31,12 @@ #include <linux/init.h> #include <linux/cpufreq.h> #include <linux/slab.h> - +#include <linux/acpi.h> +#include <acpi/processor.h> #ifdef CONFIG_X86 #include <asm/cpufeature.h> #endif -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" @@ -159,22 +156,9 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr) */ static void acpi_processor_ppc_ost(acpi_handle handle, int status) { - union acpi_object params[2] = { - {.type = ACPI_TYPE_INTEGER,}, - {.type = ACPI_TYPE_INTEGER,}, - }; - struct acpi_object_list arg_list = {2, params}; - acpi_handle temp; - - params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE; - params[1].integer.value = status; - - /* when there is no _OST , skip it */ - if (ACPI_FAILURE(acpi_get_handle(handle, "_OST", &temp))) - return; - - acpi_evaluate_object(handle, "_OST", &arg_list, NULL); - return; + if (acpi_has_method(handle, "_OST")) + acpi_evaluate_ost(handle, ACPI_PROCESSOR_NOTIFY_PERFORMANCE, + status, NULL); } int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag) @@ -240,28 +224,6 @@ void acpi_processor_ppc_exit(void) acpi_processor_ppc_status &= ~PPC_REGISTERED; } -/* - * Do a quick check if the systems looks like it should use ACPI - * cpufreq. We look at a _PCT method being available, but don't - * do a whole lot of sanity checks. - */ -void acpi_processor_load_module(struct acpi_processor *pr) -{ - static int requested; - acpi_status status = 0; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - - if (!arch_has_acpi_pdc() || requested) - return; - status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer); - if (!ACPI_FAILURE(status)) { - printk(KERN_INFO PREFIX "Requesting acpi_cpufreq\n"); - request_module_nowait("acpi_cpufreq"); - requested = 1; - } - kfree(buffer.pointer); -} - static int acpi_processor_get_performance_control(struct acpi_processor *pr) { int result = 0; @@ -468,14 +430,11 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr) int acpi_processor_get_performance_info(struct acpi_processor *pr) { int result = 0; - acpi_status status = AE_OK; - acpi_handle handle = NULL; if (!pr || !pr->performance || !pr->handle) return -EINVAL; - status = acpi_get_handle(pr->handle, "_PCT", &handle); - if (ACPI_FAILURE(status)) { + if (!acpi_has_method(pr->handle, "_PCT")) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI-based processor performance control unavailable\n")); return -ENODEV; @@ -501,7 +460,7 @@ int acpi_processor_get_performance_info(struct acpi_processor *pr) */ update_bios: #ifdef CONFIG_X86 - if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){ + if (acpi_has_method(pr->handle, "_PPC")) { if(boot_cpu_has(X86_FEATURE_EST)) printk(KERN_WARNING FW_BUG "BIOS needs update for CPU " "frequency support\n"); @@ -639,7 +598,7 @@ end: int acpi_processor_preregister_performance( struct acpi_processor_performance __percpu *performance) { - int count, count_target; + int count_target; int retval = 0; unsigned int i, j; cpumask_var_t covered_cpus; @@ -711,7 +670,6 @@ int acpi_processor_preregister_performance( /* Validate the Domain info */ count_target = pdomain->num_processors; - count = 1; if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ALL) pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ALL; else if (pdomain->coord_type == DOMAIN_COORD_TYPE_HW_ALL) @@ -745,7 +703,6 @@ int acpi_processor_preregister_performance( cpumask_set_cpu(j, covered_cpus); cpumask_set_cpu(j, pr->performance->shared_cpu_map); - count++; } for_each_possible_cpu(j) { |