diff options
| author | Mike Turquette <mturquette@linaro.org> | 2014-02-24 23:07:53 -0800 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-02-24 23:07:53 -0800 |
| commit | ad077ceb8a90c7ef1fc15758ed3811448181ee80 (patch) | |
| tree | dc090e24bb82c41c3785e539b9e60df6c48abfaf /drivers/cpufreq/intel_pstate.c | |
| parent | c05ab9a0cc8e2b958bb2db2f8f1d200e568a75d4 (diff) | |
| parent | 10b7cdc0084c27a312e59e80420c6aac70c64753 (diff) | |
Merge branch 'clk-fixes' into clk-next
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index c788abf1c457..e90816105921 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -34,8 +34,10 @@ #define SAMPLE_COUNT 3 -#define BYT_RATIOS 0x66a -#define BYT_VIDS 0x66b +#define BYT_RATIOS 0x66a +#define BYT_VIDS 0x66b +#define BYT_TURBO_RATIOS 0x66c + #define FRAC_BITS 8 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) @@ -357,7 +359,7 @@ static int byt_get_min_pstate(void) { u64 value; rdmsrl(BYT_RATIOS, value); - return value & 0xFF; + return (value >> 8) & 0xFF; } static int byt_get_max_pstate(void) @@ -367,6 +369,13 @@ static int byt_get_max_pstate(void) return (value >> 16) & 0xFF; } +static int byt_get_turbo_pstate(void) +{ + u64 value; + rdmsrl(BYT_TURBO_RATIOS, value); + return value & 0x3F; +} + static void byt_set_pstate(struct cpudata *cpudata, int pstate) { u64 val; @@ -469,7 +478,7 @@ static struct cpu_defaults byt_params = { .funcs = { .get_max = byt_get_max_pstate, .get_min = byt_get_min_pstate, - .get_turbo = byt_get_max_pstate, + .get_turbo = byt_get_turbo_pstate, .set = byt_set_pstate, .get_vid = byt_get_vid, }, |