From be8b88d7d9877114172b32817d8eb3e85d3d8f99 Mon Sep 17 00:00:00 2001 From: "Prakash, Prashanth" Date: Tue, 16 Aug 2016 14:39:41 -0600 Subject: ACPI / CPPC: set a non-zero value for transition_latency Compute the expected transition latency for frequency transitions using the values from the PCCT tables when the desired perf register is in PCC. Signed-off-by: Prashanth Prakash Reviewed-by: Alexey Klimov Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cppc_cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c index 8882b8e2ecd0..e6a33596dea3 100644 --- a/drivers/cpufreq/cppc_cpufreq.c +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -98,6 +98,7 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) policy->max = cpu->perf_caps.highest_perf; policy->cpuinfo.min_freq = policy->min; policy->cpuinfo.max_freq = policy->max; + policy->cpuinfo.transition_latency = cppc_get_transition_latency(cpu_num); policy->shared_type = cpu->shared_type; if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) -- cgit v1.2.3 From 41dd64038970139c562d07ee7ff4e41245611b4a Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Thu, 1 Sep 2016 13:37:11 -0700 Subject: ACPI / CPPC: Add prefix cppc to cpudata structure name Since struct cpudata is defined in a header file, add prefix cppc_ to make it not a generic name. Otherwise it causes compile issue in locally define structure with the same name. Signed-off-by: Srinivas Pandruvada Signed-off-by: Rafael J. Wysocki --- drivers/acpi/cppc_acpi.c | 4 ++-- drivers/cpufreq/cppc_cpufreq.c | 14 +++++++------- include/acpi/cppc_acpi.h | 4 ++-- 3 files changed, 11 insertions(+), 11 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index 715fe8001d59..3d1ae6d37178 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -409,13 +409,13 @@ end: * * Return: 0 for success or negative value for err. */ -int acpi_get_psd_map(struct cpudata **all_cpu_data) +int acpi_get_psd_map(struct cppc_cpudata **all_cpu_data) { int count_target; int retval = 0; unsigned int i, j; cpumask_var_t covered_cpus; - struct cpudata *pr, *match_pr; + struct cppc_cpudata *pr, *match_pr; struct acpi_psd_package *pdomain; struct acpi_psd_package *match_pdomain; struct cpc_desc *cpc_ptr, *match_cpc_ptr; diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c index e6a33596dea3..6588ec567d93 100644 --- a/drivers/cpufreq/cppc_cpufreq.c +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -30,13 +30,13 @@ * performance capabilities, desired performance level * requested etc. */ -static struct cpudata **all_cpu_data; +static struct cppc_cpudata **all_cpu_data; static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int target_freq, unsigned int relation) { - struct cpudata *cpu; + struct cppc_cpudata *cpu; struct cpufreq_freqs freqs; int ret = 0; @@ -66,7 +66,7 @@ static int cppc_verify_policy(struct cpufreq_policy *policy) static void cppc_cpufreq_stop_cpu(struct cpufreq_policy *policy) { int cpu_num = policy->cpu; - struct cpudata *cpu = all_cpu_data[cpu_num]; + struct cppc_cpudata *cpu = all_cpu_data[cpu_num]; int ret; cpu->perf_ctrls.desired_perf = cpu->perf_caps.lowest_perf; @@ -79,7 +79,7 @@ static void cppc_cpufreq_stop_cpu(struct cpufreq_policy *policy) static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) { - struct cpudata *cpu; + struct cppc_cpudata *cpu; unsigned int cpu_num = policy->cpu; int ret = 0; @@ -135,7 +135,7 @@ static struct cpufreq_driver cppc_cpufreq_driver = { static int __init cppc_cpufreq_init(void) { int i, ret = 0; - struct cpudata *cpu; + struct cppc_cpudata *cpu; if (acpi_disabled) return -ENODEV; @@ -145,7 +145,7 @@ static int __init cppc_cpufreq_init(void) return -ENOMEM; for_each_possible_cpu(i) { - all_cpu_data[i] = kzalloc(sizeof(struct cpudata), GFP_KERNEL); + all_cpu_data[i] = kzalloc(sizeof(struct cppc_cpudata), GFP_KERNEL); if (!all_cpu_data[i]) goto out; @@ -176,7 +176,7 @@ out: static void __exit cppc_cpufreq_exit(void) { - struct cpudata *cpu; + struct cppc_cpudata *cpu; int i; cpufreq_unregister_driver(&cppc_cpufreq_driver); diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h index 0e83cc3009bc..427a7c3e6c75 100644 --- a/include/acpi/cppc_acpi.h +++ b/include/acpi/cppc_acpi.h @@ -119,7 +119,7 @@ struct cppc_perf_fb_ctrs { }; /* Per CPU container for runtime CPPC management. */ -struct cpudata { +struct cppc_cpudata { int cpu; struct cppc_perf_caps perf_caps; struct cppc_perf_ctrls perf_ctrls; @@ -132,7 +132,7 @@ struct cpudata { extern int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs); extern int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls); extern int cppc_get_perf_caps(int cpu, struct cppc_perf_caps *caps); -extern int acpi_get_psd_map(struct cpudata **); +extern int acpi_get_psd_map(struct cppc_cpudata **); extern unsigned int cppc_get_transition_latency(int cpu); #endif /* _CPPC_ACPI_H*/ -- cgit v1.2.3