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-rw-r--r--arch/x86/kernel/cpu/cpufreq/Kconfig19
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.c28
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k8.h5
3 files changed, 3 insertions, 49 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig b/arch/x86/kernel/cpu/cpufreq/Kconfig
index 65792c2cc462..52c839875478 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig
@@ -87,30 +87,15 @@ config X86_POWERNOW_K7_ACPI
config X86_POWERNOW_K8
tristate "AMD Opteron/Athlon64 PowerNow!"
select CPU_FREQ_TABLE
+ depends on ACPI && ACPI_PROCESSOR
help
- This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
+ This adds the CPUFreq driver for K8/K10 Opteron/Athlon64 processors.
To compile this driver as a module, choose M here: the
module will be called powernow-k8.
For details, take a look at <file:Documentation/cpu-freq/>.
- If in doubt, say N.
-
-config X86_POWERNOW_K8_ACPI
- bool
- prompt "ACPI Support" if X86_32
- depends on ACPI && X86_POWERNOW_K8 && ACPI_PROCESSOR
- depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
- default y
- help
- This provides access to the K8s Processor Performance States via ACPI.
- This driver is probably required for CPUFreq to work with multi-socket and
- SMP systems. It is not required on at least some single-socket yet
- multi-core systems, even if SMP is enabled.
-
- It is safe to say Y here.
-
config X86_GX_SUSPMOD
tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
depends on X86_32 && PCI
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 4dd7e3bdee23..acc06b03194e 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -38,11 +38,9 @@
#include <asm/msr.h>
-#ifdef CONFIG_X86_POWERNOW_K8_ACPI
#include <linux/acpi.h>
#include <linux/mutex.h>
#include <acpi/processor.h>
-#endif
#define PFX "powernow-k8: "
#define VERSION "version 2.20.00"
@@ -800,7 +798,6 @@ static int find_psb_table(struct powernow_k8_data *data)
return -ENODEV;
}
-#ifdef CONFIG_X86_POWERNOW_K8_ACPI
static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data,
unsigned int index)
{
@@ -1030,23 +1027,6 @@ static int get_transition_latency(struct powernow_k8_data *data)
return 1000 * max_latency;
}
-#else
-static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
-{
- return -ENODEV;
-}
-static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data)
-{
- return;
-}
-static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data,
- unsigned int index)
-{
- return;
-}
-static int get_transition_latency(struct powernow_k8_data *data) { return 0; }
-#endif /* CONFIG_X86_POWERNOW_K8_ACPI */
-
/* Take a frequency, and issue the fid/vid transition command */
static int transition_frequency_fidvid(struct powernow_k8_data *data,
unsigned int index)
@@ -1260,19 +1240,11 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
* an UP version, and is deprecated by AMD.
*/
if (num_online_cpus() != 1) {
-#ifndef CONFIG_ACPI_PROCESSOR
- printk(KERN_ERR PFX
- "ACPI Processor support is required for "
- "SMP systems but is absent. Please load the "
- "ACPI Processor module before starting this "
- "driver.\n");
-#else
printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
" ACPI _PSS objects in a way that Linux "
"understands. Please report this to the Linux "
"ACPI maintainers and complain to your BIOS "
"vendor.\n");
-#endif
kfree(data);
return -ENODEV;
}
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
index 8ecc75b6c7c3..6c6698feade1 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
@@ -45,11 +45,10 @@ struct powernow_k8_data {
* frequency is in kHz */
struct cpufreq_frequency_table *powernow_table;
-#ifdef CONFIG_X86_POWERNOW_K8_ACPI
/* the acpi table needs to be kept. it's only available if ACPI was
* used to determine valid frequency/vid/fid states */
struct acpi_processor_performance acpi_data;
-#endif
+
/* we need to keep track of associated cores, but let cpufreq
* handle hotplug events - so just point at cpufreq pol->cpus
* structure */
@@ -222,10 +221,8 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid);
static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index);
-#ifdef CONFIG_X86_POWERNOW_K8_ACPI
static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table);
static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table);
-#endif
#ifdef CONFIG_SMP
static inline void define_siblings(int cpu, cpumask_t cpu_sharedcore_mask[])