Messages in this thread Patch in this message | | | From | "Gautham R. Shenoy" <> | Subject | [PATCH v5 3/3] powernv,cpufreq: Use cpufreq_frequency_table.driver_data to store pstate ids | Date | Sat, 29 Mar 2014 01:41:24 +0530 |
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From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
The .driver_data field in the cpufreq_frequency_table was supposed to be private to the drivers. However at some later point, it was being used to indicate if the particular frequency in the table is the BOOST_FREQUENCY. After patches [1] and [2], the .driver_data is once again private to the driver. Thus we can safely use cpufreq_frequency_table.driver_data to store pstate_ids instead of having to maintain a separate array powernv_pstate_ids[] for this purpose.
[1]: Subject: cpufreq: don't print value of .driver_data from core From : Viresh Kumar <viresh.kumar@ linaro.org> url : http://marc.info/?l=linux-pm&m=139601421504709&w=2
[2]: Subject: cpufreq: create another field .flags in cpufreq_frequency_table From : Viresh Kumar <viresh.kumar@linaro.org> url : http://marc.info/?l=linux-pm&m=139601416804702&w=2
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com> --- drivers/cpufreq/powernv-cpufreq.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index e1e5197..9edccc6 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -33,7 +33,6 @@ #define POWERNV_MAX_PSTATES 256 static struct cpufreq_frequency_table powernv_freqs[POWERNV_MAX_PSTATES+1]; -static int powernv_pstate_ids[POWERNV_MAX_PSTATES+1]; /* * Note: The set of pstates consists of contiguous integers, the @@ -112,7 +111,7 @@ static int init_powernv_pstates(void) pr_debug("PState id %d freq %d MHz\n", id, freq); powernv_freqs[i].frequency = freq * 1000; /* kHz */ - powernv_pstate_ids[i] = id; + powernv_freqs[i].driver_data = id; } /* End of list marker entry */ powernv_freqs[i].frequency = CPUFREQ_TABLE_END; @@ -283,7 +282,7 @@ static int powernv_cpufreq_target_index(struct cpufreq_policy *policy, { struct powernv_smp_call_data freq_data; - freq_data.pstate_id = powernv_pstate_ids[new_index]; + freq_data.pstate_id = powernv_freqs[new_index].driver_data; /* * Use smp_call_function to send IPI and execute the -- 1.8.3.1
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