From: Christoph Lameter <cl@xxxxxxxxx>
With the this_cpu_xx we no longer need to pass an acpi
structure to the msr management code. Simplifies code and improves
performance.
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/processor_throttling.c | 32 ++++++++++----------------------
1 files changed, 10 insertions(+), 22 deletions(-)
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index ff36327..2e773d9 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -662,20 +662,14 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
}
#ifdef CONFIG_X86
-static int acpi_throttling_rdmsr(struct acpi_processor *pr,
- u64 *value)
+static int acpi_throttling_rdmsr(u64 *value)
{
- struct cpuinfo_x86 *c;
u64 msr_high, msr_low;
- unsigned int cpu;
u64 msr = 0;
int ret = -1;
- cpu = pr->id;
- c = &cpu_data(cpu);
-
- if ((c->x86_vendor != X86_VENDOR_INTEL) ||
- !cpu_has(c, X86_FEATURE_ACPI)) {
+ if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) ||
+ !this_cpu_has(X86_FEATURE_ACPI)) {
printk(KERN_ERR PREFIX
"HARDWARE addr space,NOT supported yet\n");
} else {
@@ -690,18 +684,13 @@ static int acpi_throttling_rdmsr(struct acpi_processor *pr,
return ret;
}
-static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
+static int acpi_throttling_wrmsr(u64 value)
{
- struct cpuinfo_x86 *c;
- unsigned int cpu;
int ret = -1;
u64 msr;
- cpu = pr->id;
- c = &cpu_data(cpu);
-
- if ((c->x86_vendor != X86_VENDOR_INTEL) ||
- !cpu_has(c, X86_FEATURE_ACPI)) {
+ if ((this_cpu_read(cpu_info.x86_vendor) != X86_VENDOR_INTEL) ||
+ !this_cpu_has(X86_FEATURE_ACPI)) {
printk(KERN_ERR PREFIX
"HARDWARE addr space,NOT supported yet\n");
} else {
@@ -713,15 +702,14 @@ static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
return ret;
}
#else
-static int acpi_throttling_rdmsr(struct acpi_processor *pr,
- u64 *value)
+static int acpi_throttling_rdmsr(u64 *value)
{
printk(KERN_ERR PREFIX
"HARDWARE addr space,NOT supported yet\n");
return -1;
}
-static int acpi_throttling_wrmsr(struct acpi_processor *pr, u64 value)
+static int acpi_throttling_wrmsr(u64 value)
{
printk(KERN_ERR PREFIX
"HARDWARE addr space,NOT supported yet\n");
@@ -753,7 +741,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr,
ret = 0;
break;
case ACPI_ADR_SPACE_FIXED_HARDWARE:
- ret = acpi_throttling_rdmsr(pr, value);
+ ret = acpi_throttling_rdmsr(value);
break;
default:
printk(KERN_ERR PREFIX "Unknown addr space %d\n",
@@ -786,7 +774,7 @@ static int acpi_write_throttling_state(struct acpi_processor *pr,
ret = 0;
break;
case ACPI_ADR_SPACE_FIXED_HARDWARE:
- ret = acpi_throttling_wrmsr(pr, value);
+ ret = acpi_throttling_wrmsr(value);
break;
default:
printk(KERN_ERR PREFIX "Unknown addr space %d\n",
--
1.7.3.3.557.gb5c17
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
