diff options
Diffstat (limited to 'arch/i386/kernel/cpu/cpufreq')
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.c | 17 | ||||
| -rw-r--r-- | arch/i386/kernel/cpu/cpufreq/powernow-k8.h | 9 |
2 files changed, 12 insertions, 14 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c index 34978273680..a342b32c084 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c @@ -45,7 +45,7 @@ #define PFX "powernow-k8: " #define BFX PFX "BIOS error: " -#define VERSION "version 1.50.5" +#define VERSION "version 1.60.0" #include "powernow-k8.h" /* serialize freq changes */ @@ -336,7 +336,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid /* Phase 2 - core frequency transition */ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid) { - u32 vcoreqfid, vcocurrfid, vcofiddiff, savevid = data->currvid; + u32 vcoreqfid, vcocurrfid, vcofiddiff, fid_interval, savevid = data->currvid; if ((reqfid < HI_FID_TABLE_BOTTOM) && (data->currfid < HI_FID_TABLE_BOTTOM)) { printk(KERN_ERR PFX "ph2: illegal lo-lo transition 0x%x 0x%x\n", @@ -359,9 +359,11 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid) : vcoreqfid - vcocurrfid; while (vcofiddiff > 2) { + (data->currfid & 1) ? (fid_interval = 1) : (fid_interval = 2); + if (reqfid > data->currfid) { if (data->currfid > LO_FID_TABLE_TOP) { - if (write_new_fid(data, data->currfid + 2)) { + if (write_new_fid(data, data->currfid + fid_interval)) { return 1; } } else { @@ -371,7 +373,7 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid) } } } else { - if (write_new_fid(data, data->currfid - 2)) + if (write_new_fid(data, data->currfid - fid_interval)) return 1; } @@ -474,7 +476,7 @@ static int check_supported_cpu(unsigned int cpu) eax = cpuid_eax(CPUID_PROCESSOR_SIGNATURE); if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) || ((eax & CPUID_XFAM) != CPUID_XFAM_K8) || - ((eax & CPUID_XMOD) > CPUID_XMOD_REV_F)) { + ((eax & CPUID_XMOD) > CPUID_XMOD_REV_G)) { printk(KERN_INFO PFX "Processor cpuid %x not supported\n", eax); goto out; } @@ -521,10 +523,6 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8 printk(KERN_ERR BFX "maxfid exceeded with pstate %d\n", j); return -ENODEV; } - if (pst[j].fid & 1) { - printk(KERN_ERR BFX "fid invalid - %d : 0x%x\n", j, pst[j].fid); - return -EINVAL; - } if (j && (pst[j].fid < HI_FID_TABLE_BOTTOM)) { /* Only first fid is allowed to be in "low" range */ printk(KERN_ERR BFX "two low fids - %d : 0x%x\n", j, pst[j].fid); @@ -1177,4 +1175,3 @@ MODULE_LICENSE("GPL"); late_initcall(powernowk8_init); module_exit(powernowk8_exit); - diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h index b1e85bb3639..d0de37d58e9 100644 --- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.h @@ -42,7 +42,7 @@ struct powernow_k8_data { #define CPUID_XFAM 0x0ff00000 /* extended family */ #define CPUID_XFAM_K8 0 #define CPUID_XMOD 0x000f0000 /* extended model */ -#define CPUID_XMOD_REV_F 0x00040000 +#define CPUID_XMOD_REV_G 0x00060000 #define CPUID_USE_XFAM_XMOD 0x00000f00 #define CPUID_GET_MAX_CAPABILITIES 0x80000000 #define CPUID_FREQ_VOLT_CAPABILITIES 0x80000007 @@ -86,13 +86,14 @@ struct powernow_k8_data { * low fid table * - lowest entry in the high fid table must be a <= 200MHz + 2 * the entry * in the low fid table - * - the parts can only step at 200 MHz intervals, so 1.9 GHz is never valid + * - the parts can only step at <= 200 MHz intervals, odd fid values are + * supported in revision G and later revisions. * - lowest frequency must be >= interprocessor hypertransport link speed * (only applies to MP systems obviously) */ /* fids (frequency identifiers) are arranged in 2 tables - lo and hi */ -#define LO_FID_TABLE_TOP 6 /* fid values marking the boundary */ +#define LO_FID_TABLE_TOP 7 /* fid values marking the boundary */ #define HI_FID_TABLE_BOTTOM 8 /* between the low and high tables */ #define LO_VCOFREQ_TABLE_TOP 1400 /* corresponding vco frequency values */ @@ -106,7 +107,7 @@ struct powernow_k8_data { #define MIN_FREQ 800 /* Min and max freqs, per spec */ #define MAX_FREQ 5000 -#define INVALID_FID_MASK 0xffffffc1 /* not a valid fid if these bits are set */ +#define INVALID_FID_MASK 0xffffffc0 /* not a valid fid if these bits are set */ #define INVALID_VID_MASK 0xffffffc0 /* not a valid vid if these bits are set */ #define VID_OFF 0x3f |