Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] constify some data tables.
  [CPUFREQ] constify cpufreq_driver where possible.
  {rd,wr}msr_on_cpu SMP=n optimization
  [CPUFREQ] cpufreq_ondemand.c: don't use _WORK_NAR
  rdmsr_on_cpu, wrmsr_on_cpu
  [CPUFREQ] Revert default on deprecated config X86_SPEEDSTEP_CENTRINO_ACPI

diff --git a/arch/i386/kernel/cpu/cpufreq/Kconfig b/arch/i386/kernel/cpu/cpufreq/Kconfig
index 6c52182..e912aae 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/Kconfig
+++ b/arch/i386/kernel/cpu/cpufreq/Kconfig
@@ -125,7 +125,6 @@ config X86_SPEEDSTEP_CENTRINO_ACPI
        bool "Use ACPI tables to decode valid frequency/voltage (deprecated)"
        depends on X86_SPEEDSTEP_CENTRINO && ACPI_PROCESSOR
        depends on !(X86_SPEEDSTEP_CENTRINO = y && ACPI_PROCESSOR = m)
-       default y
        help
          This is deprecated and this functionality is now merged into
          acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of

diff --git a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
index 0d49d73..280b317 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
+++ b/arch/i386/kernel/cpu/cpufreq/cpufreq-nforce2.c
@@ -373,7 +373,7 @@ static int nforce2_cpu_exit(struct cpufreq_policy *policy)
        return 0;
 }
 
-static struct cpufreq_driver nforce2_driver = {
+static const struct cpufreq_driver nforce2_driver = {
        .name = "nforce2",
        .verify = nforce2_verify,
        .target = nforce2_target,

diff --git a/arch/i386/kernel/cpu/cpufreq/e_powersaver.c b/arch/i386/kernel/cpu/cpufreq/e_powersaver.c
index f43d98e..8bedaad 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/e_powersaver.c
+++ b/arch/i386/kernel/cpu/cpufreq/e_powersaver.c
@@ -293,7 +293,7 @@ static struct freq_attr* eps_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver eps_driver = {
+static const struct cpufreq_driver eps_driver = {
        .verify         = eps_verify,
        .target         = eps_target,
        .init           = eps_cpu_init,

diff --git a/arch/i386/kernel/cpu/cpufreq/elanfreq.c b/arch/i386/kernel/cpu/cpufreq/elanfreq.c
index f317276..6905de3 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/elanfreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/elanfreq.c
@@ -267,7 +267,7 @@ static struct freq_attr* elanfreq_attr[] = {
 };
 
 
-static struct cpufreq_driver elanfreq_driver = {
+static const struct cpufreq_driver elanfreq_driver = {
        .get            = elanfreq_get_cpu_frequency,
        .verify         = elanfreq_verify,
        .target         = elanfreq_target,

diff --git a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
index 6667e9c..9a66cab 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/gx-suspmod.c
@@ -433,7 +433,7 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
  * cpufreq_gx_init:
  *   MediaGX/Geode GX initialize cpufreq driver
  */
-static struct cpufreq_driver gx_suspmod_driver = {
+static const struct cpufreq_driver gx_suspmod_driver = {
        .get            = gx_get_cpuspeed,
        .verify         = cpufreq_gx_verify,
        .target         = cpufreq_gx_target,

diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c
index b59878a..8cc6952 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.c
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c
@@ -61,8 +61,8 @@ static int cpu_model;
 static unsigned int numscales=16;
 static unsigned int fsb;
 
-static struct mV_pos *vrm_mV_table;
-static unsigned char *mV_vrm_table;
+static const struct mV_pos *vrm_mV_table;
+static const unsigned char *mV_vrm_table;
 struct f_msr {
        u8 vrm;
        u8 pos;
@@ -821,7 +821,7 @@ static struct freq_attr* longhaul_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver longhaul_driver = {
+static const struct cpufreq_driver longhaul_driver = {
        .verify = longhaul_verify,
        .target = longhaul_target,
        .get    = longhaul_get,

diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.h b/arch/i386/kernel/cpu/cpufreq/longhaul.h
index bb0a04b..102548f 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/longhaul.h
+++ b/arch/i386/kernel/cpu/cpufreq/longhaul.h
@@ -56,7 +56,7 @@ union msr_longhaul {
 /*
  * VIA C3 Samuel 1  & Samuel 2 (stepping 0)
  */
-static int __initdata samuel1_clock_ratio[16] = {
+static const int __initdata samuel1_clock_ratio[16] = {
        -1, /* 0000 -> RESERVED */
        30, /* 0001 ->  3.0x */
        40, /* 0010 ->  4.0x */
@@ -75,7 +75,7 @@ static int __initdata samuel1_clock_ratio[16] = {
        -1, /* 1111 -> RESERVED */
 };
 
-static int __initdata samuel1_eblcr[16] = {
+static const int __initdata samuel1_eblcr[16] = {
        50, /* 0000 -> RESERVED */
        30, /* 0001 ->  3.0x */
        40, /* 0010 ->  4.0x */
@@ -97,7 +97,7 @@ static int __initdata samuel1_eblcr[16] = {
 /*
  * VIA C3 Samuel2 Stepping 1->15
  */
-static int __initdata samuel2_eblcr[16] = {
+static const int __initdata samuel2_eblcr[16] = {
        50,  /* 0000 ->  5.0x */
        30,  /* 0001 ->  3.0x */
        40,  /* 0010 ->  4.0x */
@@ -119,7 +119,7 @@ static int __initdata samuel2_eblcr[16] = {
 /*
  * VIA C3 Ezra
  */
-static int __initdata ezra_clock_ratio[16] = {
+static const int __initdata ezra_clock_ratio[16] = {
        100, /* 0000 -> 10.0x */
        30,  /* 0001 ->  3.0x */
        40,  /* 0010 ->  4.0x */
@@ -138,7 +138,7 @@ static int __initdata ezra_clock_ratio[16] = {
        120, /* 1111 -> 12.0x */
 };
 
-static int __initdata ezra_eblcr[16] = {
+static const int __initdata ezra_eblcr[16] = {
        50,  /* 0000 ->  5.0x */
        30,  /* 0001 ->  3.0x */
        40,  /* 0010 ->  4.0x */
@@ -160,7 +160,7 @@ static int __initdata ezra_eblcr[16] = {
 /*
  * VIA C3 (Ezra-T) [C5M].
  */
-static int __initdata ezrat_clock_ratio[32] = {
+static const int __initdata ezrat_clock_ratio[32] = {
        100, /* 0000 -> 10.0x */
        30,  /* 0001 ->  3.0x */
        40,  /* 0010 ->  4.0x */
@@ -196,7 +196,7 @@ static int __initdata ezrat_clock_ratio[32] = {
        -1,  /* 1111 -> RESERVED (12.0x) */
 };
 
-static int __initdata ezrat_eblcr[32] = {
+static const int __initdata ezrat_eblcr[32] = {
        50,  /* 0000 ->  5.0x */
        30,  /* 0001 ->  3.0x */
        40,  /* 0010 ->  4.0x */
@@ -235,7 +235,7 @@ static int __initdata ezrat_eblcr[32] = {
 /*
  * VIA C3 Nehemiah */
 
-static int __initdata  nehemiah_clock_ratio[32] = {
+static const int __initdata  nehemiah_clock_ratio[32] = {
        100, /* 0000 -> 10.0x */
        160, /* 0001 -> 16.0x */
        40,  /* 0010 ->  4.0x */
@@ -270,7 +270,7 @@ static int __initdata  nehemiah_clock_ratio[32] = {
        120, /* 1111 -> 12.0x */
 };
 
-static int __initdata nehemiah_eblcr[32] = {
+static const int __initdata nehemiah_eblcr[32] = {
        50,  /* 0000 ->  5.0x */
        160, /* 0001 -> 16.0x */
        40,  /* 0010 ->  4.0x */
@@ -315,7 +315,7 @@ struct mV_pos {
        unsigned short pos;
 };
 
-static struct mV_pos __initdata vrm85_mV[32] = {
+static const struct mV_pos __initdata vrm85_mV[32] = {
        {1250, 8},      {1200, 6},      {1150, 4},      {1100, 2},
        {1050, 0},      {1800, 30},     {1750, 28},     {1700, 26},
        {1650, 24},     {1600, 22},     {1550, 20},     {1500, 18},
@@ -326,14 +326,14 @@ static struct mV_pos __initdata vrm85_mV[32] = {
        {1475, 17},     {1425, 15},     {1375, 13},     {1325, 11}
 };
 
-static unsigned char __initdata mV_vrm85[32] = {
+static const unsigned char __initdata mV_vrm85[32] = {
        0x04,   0x14,   0x03,   0x13,   0x02,   0x12,   0x01,   0x11,
        0x00,   0x10,   0x0f,   0x1f,   0x0e,   0x1e,   0x0d,   0x1d,
        0x0c,   0x1c,   0x0b,   0x1b,   0x0a,   0x1a,   0x09,   0x19,
        0x08,   0x18,   0x07,   0x17,   0x06,   0x16,   0x05,   0x15
 };
 
-static struct mV_pos __initdata mobilevrm_mV[32] = {
+static const struct mV_pos __initdata mobilevrm_mV[32] = {
        {1750, 31},     {1700, 30},     {1650, 29},     {1600, 28},
        {1550, 27},     {1500, 26},     {1450, 25},     {1400, 24},
        {1350, 23},     {1300, 22},     {1250, 21},     {1200, 20},
@@ -344,7 +344,7 @@ static struct mV_pos __initdata mobilevrm_mV[32] = {
        {675, 3},       {650, 2},       {625, 1},       {600, 0}
 };
 
-static unsigned char __initdata mV_mobilevrm[32] = {
+static const unsigned char __initdata mV_mobilevrm[32] = {
        0x1f,   0x1e,   0x1d,   0x1c,   0x1b,   0x1a,   0x19,   0x18,
        0x17,   0x16,   0x15,   0x14,   0x13,   0x12,   0x11,   0x10,
        0x0f,   0x0e,   0x0d,   0x0c,   0x0b,   0x0a,   0x09,   0x08,

diff --git a/arch/i386/kernel/cpu/cpufreq/longrun.c b/arch/i386/kernel/cpu/cpufreq/longrun.c
index b268951..e11fd86 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/longrun.c
+++ b/arch/i386/kernel/cpu/cpufreq/longrun.c
@@ -18,7 +18,7 @@
 
 #define dprintk(msg...) cpufreq_debug_printk(CPUFREQ_DEBUG_DRIVER, "longrun", msg)
 
-static struct cpufreq_driver   longrun_driver;
+static const struct cpufreq_driver longrun_driver;
 
 /**
  * longrun_{low,high}_freq is needed for the conversion of cpufreq kHz
@@ -280,7 +280,7 @@ static int __init longrun_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static struct cpufreq_driver longrun_driver = {
+static const struct cpufreq_driver longrun_driver = {
        .flags          = CPUFREQ_CONST_LOOPS,
        .verify         = longrun_verify_policy,
        .setpolicy      = longrun_set_policy,

diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
index f895240..2a0d89c 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k6.c
@@ -195,7 +195,7 @@ static struct freq_attr* powernow_k6_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver powernow_k6_driver = {
+static const struct cpufreq_driver powernow_k6_driver = {
        .verify         = powernow_k6_verify,
        .target         = powernow_k6_target,
        .init           = powernow_k6_cpu_init,

diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
index 5438276..d98529c 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k7.c
@@ -68,7 +68,7 @@ union powernow_acpi_control_t {
 
 #ifdef CONFIG_CPU_FREQ_DEBUG
 /* divide by 1000 to get VCore voltage in V. */
-static int mobile_vid_table[32] = {
+static const int mobile_vid_table[32] = {
     2000, 1950, 1900, 1850, 1800, 1750, 1700, 1650,
     1600, 1550, 1500, 1450, 1400, 1350, 1300, 0,
     1275, 1250, 1225, 1200, 1175, 1150, 1125, 1100,
@@ -77,7 +77,7 @@ static int mobile_vid_table[32] = {
 #endif
 
 /* divide by 10 to get FID. */
-static int fid_codes[32] = {
+static const int fid_codes[32] = {
     110, 115, 120, 125, 50, 55, 60, 65,
     70, 75, 80, 85, 90, 95, 100, 105,
     30, 190, 40, 200, 130, 135, 140, 210,
@@ -647,7 +647,7 @@ static struct freq_attr* powernow_table_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver powernow_driver = {
+static const struct cpufreq_driver powernow_driver = {
        .verify = powernow_verify,
        .target = powernow_target,
        .get    = powernow_get,

diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index fe3b670..8ed7b3a 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -1305,7 +1305,7 @@ static struct freq_attr* powernow_k8_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver cpufreq_amd64_driver = {
+static const struct cpufreq_driver cpufreq_amd64_driver = {
        .verify = powernowk8_verify,
        .target = powernowk8_target,
        .init = powernowk8_cpu_init,

diff --git a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
index b8fb4b5..eddbe04 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
+++ b/arch/i386/kernel/cpu/cpufreq/sc520_freq.c
@@ -138,7 +138,7 @@ static struct freq_attr* sc520_freq_attr[] = {
 };
 
 
-static struct cpufreq_driver sc520_freq_driver = {
+static const struct cpufreq_driver sc520_freq_driver = {
        .get    = sc520_freq_get_cpu_frequency,
        .verify = sc520_freq_verify,
        .target = sc520_freq_target,

diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
index b425cd3..b94e347 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-ich.c
@@ -374,7 +374,7 @@ static struct freq_attr* speedstep_attr[] = {
 };
 
 
-static struct cpufreq_driver speedstep_driver = {
+static const struct cpufreq_driver speedstep_driver = {
        .name   = "speedstep-ich",
        .verify = speedstep_verify,
        .target = speedstep_target,

diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
index ff0d898..d4b7404 100644 (file)
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c
@@ -332,7 +332,7 @@ static struct freq_attr* speedstep_attr[] = {
        NULL,
 };
 
-static struct cpufreq_driver speedstep_driver = {
+static const struct cpufreq_driver speedstep_driver = {
        .name           = "speedstep-smi",
        .verify         = speedstep_verify,
        .target         = speedstep_target,

diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile
index d86a548..22d8ac5 100644 (file)
--- a/arch/i386/lib/Makefile
+++ b/arch/i386/lib/Makefile
@@ -7,3 +7,5 @@ lib-y = checksum.o delay.o usercopy.o getuser.o putuser.o memcpy.o strstr.o \
        bitops.o semaphore.o
 
 lib-$(CONFIG_X86_USE_3DNOW) += mmx.o
+
+obj-$(CONFIG_SMP)      += msr-on-cpu.o

diff --git a/arch/i386/lib/msr-on-cpu.c b/arch/i386/lib/msr-on-cpu.c
new file mode 100644 (file)
index 0000000..1c46bda
--- /dev/null
+++ b/arch/i386/lib/msr-on-cpu.c
@@ -0,0 +1,58 @@
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/smp.h>
+#include <asm/msr.h>
+
+struct msr_info {
+       u32 msr_no;
+       u32 l, h;
+};
+
+static void __rdmsr_on_cpu(void *info)
+{
+       struct msr_info *rv = info;
+
+       rdmsr(rv->msr_no, rv->l, rv->h);
+}
+
+void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+       preempt_disable();
+       if (smp_processor_id() == cpu)
+               rdmsr(msr_no, *l, *h);
+       else {
+               struct msr_info rv;
+
+               rv.msr_no = msr_no;
+               smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 0, 1);
+               *l = rv.l;
+               *h = rv.h;
+       }
+       preempt_enable();
+}
+
+static void __wrmsr_on_cpu(void *info)
+{
+       struct msr_info *rv = info;
+
+       wrmsr(rv->msr_no, rv->l, rv->h);
+}
+
+void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+       preempt_disable();
+       if (smp_processor_id() == cpu)
+               wrmsr(msr_no, l, h);
+       else {
+               struct msr_info rv;
+
+               rv.msr_no = msr_no;
+               rv.l = l;
+               rv.h = h;
+               smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 0, 1);
+       }
+       preempt_enable();
+}
+
+EXPORT_SYMBOL(rdmsr_on_cpu);
+EXPORT_SYMBOL(wrmsr_on_cpu);

diff --git a/arch/x86_64/kernel/cpufreq/Kconfig b/arch/x86_64/kernel/cpufreq/Kconfig
index 45a6a1f..ced15d0 100644 (file)
--- a/arch/x86_64/kernel/cpufreq/Kconfig
+++ b/arch/x86_64/kernel/cpufreq/Kconfig
@@ -45,7 +45,6 @@ config X86_SPEEDSTEP_CENTRINO
 config X86_SPEEDSTEP_CENTRINO_ACPI
        bool
        depends on X86_SPEEDSTEP_CENTRINO
-       default y
 
 config X86_ACPI_CPUFREQ
        tristate "ACPI Processor P-States driver"

diff --git a/arch/x86_64/lib/Makefile b/arch/x86_64/lib/Makefile
index 8d5f835..c943271 100644 (file)
--- a/arch/x86_64/lib/Makefile
+++ b/arch/x86_64/lib/Makefile
@@ -5,6 +5,7 @@
 CFLAGS_csum-partial.o := -funroll-loops
 
 obj-y := io.o iomap_copy.o
+obj-$(CONFIG_SMP)      += msr-on-cpu.o
 
 lib-y := csum-partial.o csum-copy.o csum-wrappers.o delay.o \
        usercopy.o getuser.o putuser.o  \

diff --git a/arch/x86_64/lib/msr-on-cpu.c b/arch/x86_64/lib/msr-on-cpu.c
new file mode 100644 (file)
index 0000000..47e0ec4
--- /dev/null
+++ b/arch/x86_64/lib/msr-on-cpu.c
@@ -0,0 +1 @@
+#include "../../i386/lib/msr-on-cpu.c"

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index f52facc..a12d6a2 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1752,7 +1752,7 @@ static struct notifier_block __cpuinitdata cpufreq_cpu_notifier =
  * (and isn't unregistered in the meantime).
  *
  */
-int cpufreq_register_driver(struct cpufreq_driver *driver_data)
+int cpufreq_register_driver(const struct cpufreq_driver *driver_data)
 {
        unsigned long flags;
        int ret;
@@ -1817,7 +1817,7 @@ EXPORT_SYMBOL_GPL(cpufreq_register_driver);
  * Returns zero if successful, and -EINVAL if the cpufreq_driver is
  * currently not initialised.
  */
-int cpufreq_unregister_driver(struct cpufreq_driver *driver)
+int cpufreq_unregister_driver(const struct cpufreq_driver *driver)
 {
        unsigned long flags;
 

diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index d60bcb9..8d053f5 100644 (file)
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -432,9 +432,6 @@ static void do_dbs_timer(struct work_struct *work)
        /* We want all CPUs to do sampling nearly on same jiffy */
        int delay = usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
 
-       /* Permit rescheduling of this work item */
-       work_release(work);
-
        delay -= jiffies % delay;
 
        if (lock_policy_rwsem_write(cpu) < 0)
@@ -473,7 +470,7 @@ static inline void dbs_timer_init(struct cpu_dbs_info_s *dbs_info)
        dbs_info->enable = 1;
        ondemand_powersave_bias_init();
        dbs_info->sample_type = DBS_NORMAL_SAMPLE;
-       INIT_DELAYED_WORK_NAR(&dbs_info->work, do_dbs_timer);
+       INIT_DELAYED_WORK(&dbs_info->work, do_dbs_timer);
        queue_delayed_work_on(dbs_info->cpu, kondemand_wq, &dbs_info->work,
                              delay);
 }

diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h
index 6db40d0..ec3b680 100644 (file)
--- a/include/asm-i386/msr.h
+++ b/include/asm-i386/msr.h
@@ -83,6 +83,20 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val)
                          : "c" (counter))
 #endif /* !CONFIG_PARAVIRT */
 
+#ifdef CONFIG_SMP
+void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
+void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+#else  /*  CONFIG_SMP  */
+static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+       rdmsr(msr_no, *l, *h);
+}
+static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+       wrmsr(msr_no, l, h);
+}
+#endif  /*  CONFIG_SMP  */
+
 /* symbolic names for some interesting MSRs */
 /* Intel defined MSRs. */
 #define MSR_IA32_P5_MC_ADDR            0

diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 3227bc9..902f9a5 100644 (file)
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -160,6 +160,19 @@ static inline unsigned int cpuid_edx(unsigned int op)
 #define MSR_IA32_UCODE_WRITE           0x79
 #define MSR_IA32_UCODE_REV             0x8b
 
+#ifdef CONFIG_SMP
+void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
+void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+#else  /*  CONFIG_SMP  */
+static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
+{
+       rdmsr(msr_no, *l, *h);
+}
+static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
+{
+       wrmsr(msr_no, l, h);
+}
+#endif  /*  CONFIG_SMP  */
 
 #endif
 

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 0899e2c..3a25235 100644 (file)
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -225,8 +225,8 @@ struct cpufreq_driver {
 #define CPUFREQ_PM_NO_WARN     0x04    /* don't warn on suspend/resume speed
                                         * mismatches */
 
-int cpufreq_register_driver(struct cpufreq_driver *driver_data);
-int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
+int cpufreq_register_driver(const struct cpufreq_driver *driver_data);
+int cpufreq_unregister_driver(const struct cpufreq_driver *driver_data);
 
 
 void cpufreq_notify_transition(struct cpufreq_freqs *freqs, unsigned int state);