diff options
Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq')
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/longhaul.c | 21 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/p4-clockmod.c | 31 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 6 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.h | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c | 10 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-lib.c | 1 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/speedstep-smi.c | 2 |
7 files changed, 35 insertions, 38 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/longhaul.c b/arch/i386/kernel/cpu/cpufreq/longhaul.c index 2b030d6ccbf7..a3df9c039bd4 100644 --- a/arch/i386/kernel/cpu/cpufreq/longhaul.c +++ b/arch/i386/kernel/cpu/cpufreq/longhaul.c @@ -590,20 +590,23 @@ static acpi_status longhaul_walk_callback(acpi_handle obj_handle, static int enable_arbiter_disable(void) { struct pci_dev *dev; + int status; int reg; u8 pci_cmd; + status = 1; /* Find PLE133 host bridge */ reg = 0x78; - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8601_0, + NULL); /* Find CLE266 host bridge */ if (dev == NULL) { reg = 0x76; - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_862X_0, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_862X_0, NULL); /* Find CN400 V-Link host bridge */ if (dev == NULL) - dev = pci_find_device(PCI_VENDOR_ID_VIA, 0x7259, NULL); - + dev = pci_get_device(PCI_VENDOR_ID_VIA, 0x7259, NULL); } if (dev != NULL) { /* Enable access to port 0x22 */ @@ -615,10 +618,11 @@ static int enable_arbiter_disable(void) if (!(pci_cmd & 1<<7)) { printk(KERN_ERR PFX "Can't enable access to port 0x22.\n"); - return 0; + status = 0; } } - return 1; + pci_dev_put(dev); + return status; } return 0; } @@ -629,7 +633,7 @@ static int longhaul_setup_vt8235(void) u8 pci_cmd; /* Find VT8235 southbridge */ - dev = pci_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, NULL); + dev = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, NULL); if (dev != NULL) { /* Set transition time to max */ pci_read_config_byte(dev, 0xec, &pci_cmd); @@ -641,6 +645,7 @@ static int longhaul_setup_vt8235(void) pci_read_config_byte(dev, 0xe5, &pci_cmd); pci_cmd |= 1 << 7; pci_write_config_byte(dev, 0xe5, pci_cmd); + pci_dev_put(dev); return 1; } return 0; @@ -678,7 +683,7 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy) sizeof(samuel2_eblcr)); break; case 1 ... 15: - longhaul_version = TYPE_LONGHAUL_V2; + longhaul_version = TYPE_LONGHAUL_V1; if (c->x86_mask < 8) { cpu_model = CPU_SAMUEL2; cpuname = "C3 'Samuel 2' [C5B]"; diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c index 4786fedca6eb..4c76b511e194 100644 --- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c +++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c @@ -27,7 +27,6 @@ #include <linux/cpufreq.h> #include <linux/slab.h> #include <linux/cpumask.h> -#include <linux/sched.h> /* current / set_cpus_allowed() */ #include <asm/processor.h> #include <asm/msr.h> @@ -62,7 +61,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) if (!cpu_online(cpu) || (newstate > DC_DISABLE) || (newstate == DC_RESV)) return -EINVAL; - rdmsr(MSR_IA32_THERM_STATUS, l, h); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_STATUS, &l, &h); if (l & 0x01) dprintk("CPU#%d currently thermal throttled\n", cpu); @@ -70,10 +69,10 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) if (has_N44_O17_errata[cpu] && (newstate == DC_25PT || newstate == DC_DFLT)) newstate = DC_38PT; - rdmsr(MSR_IA32_THERM_CONTROL, l, h); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, &l, &h); if (newstate == DC_DISABLE) { dprintk("CPU#%d disabling modulation\n", cpu); - wrmsr(MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); + wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, l & ~(1<<4), h); } else { dprintk("CPU#%d setting duty cycle to %d%%\n", cpu, ((125 * newstate) / 10)); @@ -84,7 +83,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) */ l = (l & ~14); l = l | (1<<4) | ((newstate & 0x7)<<1); - wrmsr(MSR_IA32_THERM_CONTROL, l, h); + wrmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, l, h); } return 0; @@ -111,7 +110,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, { unsigned int newstate = DC_RESV; struct cpufreq_freqs freqs; - cpumask_t cpus_allowed; int i; if (cpufreq_frequency_table_target(policy, &p4clockmod_table[0], target_freq, relation, &newstate)) @@ -132,17 +130,8 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, /* run on each logical CPU, see section 13.15.3 of IA32 Intel Architecture Software * Developer's Manual, Volume 3 */ - cpus_allowed = current->cpus_allowed; - - for_each_cpu_mask(i, policy->cpus) { - cpumask_t this_cpu = cpumask_of_cpu(i); - - set_cpus_allowed(current, this_cpu); - BUG_ON(smp_processor_id() != i); - + for_each_cpu_mask(i, policy->cpus) cpufreq_p4_setdc(i, p4clockmod_table[newstate].index); - } - set_cpus_allowed(current, cpus_allowed); /* notifiers */ for_each_cpu_mask(i, policy->cpus) { @@ -256,17 +245,9 @@ static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy) static unsigned int cpufreq_p4_get(unsigned int cpu) { - cpumask_t cpus_allowed; u32 l, h; - cpus_allowed = current->cpus_allowed; - - set_cpus_allowed(current, cpumask_of_cpu(cpu)); - BUG_ON(smp_processor_id() != cpu); - - rdmsr(MSR_IA32_THERM_CONTROL, l, h); - - set_cpus_allowed(current, cpus_allowed); + rdmsr_on_cpu(cpu, MSR_IA32_THERM_CONTROL, &l, &h); if (l & 0x10) { l = l >> 1; diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index fe3b67005ebb..7cf3d207b6b3 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -661,7 +661,8 @@ static int fill_powernow_table(struct powernow_k8_data *data, struct pst_s *pst, dprintk("cfid 0x%x, cvid 0x%x\n", data->currfid, data->currvid); data->powernow_table = powernow_table; - print_basics(data); + if (first_cpu(cpu_core_map[data->cpu]) == data->cpu) + print_basics(data); for (j = 0; j < data->numps; j++) if ((pst[j].fid==data->currfid) && (pst[j].vid==data->currvid)) @@ -814,7 +815,8 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) /* fill in data */ data->numps = data->acpi_data.state_count; - print_basics(data); + if (first_cpu(cpu_core_map[data->cpu]) == data->cpu) + print_basics(data); powernow_k8_acpi_pst_values(data, 0); /* notify BIOS that we exist */ diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h index 0fb2a3001ba5..95be5013c984 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h @@ -215,8 +215,10 @@ 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[]) diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c index f43b987f952b..35489fd68852 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c @@ -720,6 +720,7 @@ static int centrino_target (struct cpufreq_policy *policy, cpu_set(j, set_mask); set_cpus_allowed(current, set_mask); + preempt_disable(); if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) { dprintk("couldn't limit to CPUs in this domain\n"); retval = -EAGAIN; @@ -727,6 +728,7 @@ static int centrino_target (struct cpufreq_policy *policy, /* We haven't started the transition yet. */ goto migrate_end; } + preempt_enable(); break; } @@ -761,10 +763,13 @@ static int centrino_target (struct cpufreq_policy *policy, } wrmsr(MSR_IA32_PERF_CTL, oldmsr, h); - if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) + if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) { + preempt_enable(); break; + } cpu_set(j, covered_cpus); + preempt_enable(); } for_each_cpu_mask(k, online_policy_cpus) { @@ -796,8 +801,11 @@ static int centrino_target (struct cpufreq_policy *policy, cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); } } + set_cpus_allowed(current, saved_mask); + return 0; migrate_end: + preempt_enable(); set_cpus_allowed(current, saved_mask); return 0; } diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c index d59277c00911..b1acc8ce3167 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-lib.c @@ -13,7 +13,6 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/cpufreq.h> -#include <linux/pci.h> #include <linux/slab.h> #include <asm/msr.h> diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c index ff0d89806114..e1c509aa3054 100644 --- a/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c +++ b/arch/i386/kernel/cpu/cpufreq/speedstep-smi.c @@ -17,10 +17,10 @@ #include <linux/moduleparam.h> #include <linux/init.h> #include <linux/cpufreq.h> -#include <linux/pci.h> #include <linux/slab.h> #include <linux/delay.h> #include <asm/ist.h> +#include <asm/io.h> #include "speedstep-lib.h" |