diff options
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 27 | ||||
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/maple-cpufreq.c | 1 | ||||
| -rw-r--r-- | drivers/cpufreq/pasemi-cpufreq.c | 1 | ||||
| -rw-r--r-- | drivers/cpufreq/pmac64-cpufreq.c | 1 | ||||
| -rw-r--r-- | drivers/cpufreq/powernv-cpufreq.c | 1 | ||||
| -rw-r--r-- | drivers/cpufreq/ppc_cbe_cpufreq.c | 1 | ||||
| -rw-r--r-- | include/linux/cpufreq.h | 6 |
8 files changed, 13 insertions, 29 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 04fc786dd2c0..f98c9438760c 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -575,30 +575,11 @@ unsigned int cpufreq_policy_transition_delay_us(struct cpufreq_policy *policy) return policy->transition_delay_us; latency = policy->cpuinfo.transition_latency / NSEC_PER_USEC; - if (latency) { - unsigned int max_delay_us = 2 * MSEC_PER_SEC; + if (latency) + /* Give a 50% breathing room between updates */ + return latency + (latency >> 1); - /* - * If the platform already has high transition_latency, use it - * as-is. - */ - if (latency > max_delay_us) - return latency; - - /* - * For platforms that can change the frequency very fast (< 2 - * us), the above formula gives a decent transition delay. But - * for platforms where transition_latency is in milliseconds, it - * ends up giving unrealistic values. - * - * Cap the default transition delay to 2 ms, which seems to be - * a reasonable amount of time after which we should reevaluate - * the frequency. - */ - return min(latency * LATENCY_MULTIPLIER, max_delay_us); - } - - return LATENCY_MULTIPLIER; + return USEC_PER_MSEC; } EXPORT_SYMBOL_GPL(cpufreq_policy_transition_delay_us); diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index c0278d023cfc..c69b420d0bc9 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2425,6 +2425,10 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = { X86_MATCH(INTEL_ICELAKE_X, core_funcs), X86_MATCH(INTEL_SAPPHIRERAPIDS_X, core_funcs), X86_MATCH(INTEL_EMERALDRAPIDS_X, core_funcs), + X86_MATCH(INTEL_GRANITERAPIDS_D, core_funcs), + X86_MATCH(INTEL_GRANITERAPIDS_X, core_funcs), + X86_MATCH(INTEL_ATOM_CRESTMONT, core_funcs), + X86_MATCH(INTEL_ATOM_CRESTMONT_X, core_funcs), {} }; #endif diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c index f9306410a07f..690da85c4865 100644 --- a/drivers/cpufreq/maple-cpufreq.c +++ b/drivers/cpufreq/maple-cpufreq.c @@ -238,4 +238,5 @@ bail_noprops: module_init(maple_cpufreq_init); +MODULE_DESCRIPTION("cpufreq driver for Maple 970FX/970MP boards"); MODULE_LICENSE("GPL"); diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c index ee925b53b6b9..5fc9cb480516 100644 --- a/drivers/cpufreq/pasemi-cpufreq.c +++ b/drivers/cpufreq/pasemi-cpufreq.c @@ -269,5 +269,6 @@ static void __exit pas_cpufreq_exit(void) module_init(pas_cpufreq_init); module_exit(pas_cpufreq_exit); +MODULE_DESCRIPTION("cpufreq driver for PA Semi PWRficient"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>, Olof Johansson <olof@lixom.net>"); diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c index 2cd2b06849a2..9d3fe36075f8 100644 --- a/drivers/cpufreq/pmac64-cpufreq.c +++ b/drivers/cpufreq/pmac64-cpufreq.c @@ -671,4 +671,5 @@ static int __init g5_cpufreq_init(void) module_init(g5_cpufreq_init); +MODULE_DESCRIPTION("cpufreq driver for SMU & 970FX based G5 Macs"); MODULE_LICENSE("GPL"); diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 50c62929f7ca..bc55723b4d87 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -1160,5 +1160,6 @@ static void __exit powernv_cpufreq_exit(void) } module_exit(powernv_cpufreq_exit); +MODULE_DESCRIPTION("cpufreq driver for IBM/OpenPOWER powernv systems"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Vaidyanathan Srinivasan <svaidy at linux.vnet.ibm.com>"); diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c index 5ee4c7bfdcc5..98595b3ea13f 100644 --- a/drivers/cpufreq/ppc_cbe_cpufreq.c +++ b/drivers/cpufreq/ppc_cbe_cpufreq.c @@ -168,5 +168,6 @@ static void __exit cbe_cpufreq_exit(void) module_init(cbe_cpufreq_init); module_exit(cbe_cpufreq_exit); +MODULE_DESCRIPTION("cpufreq driver for Cell BE processors"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>"); diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index d4d2f4d1d7cb..e0e19d9c1323 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -577,12 +577,6 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div, #define CPUFREQ_POLICY_POWERSAVE (1) #define CPUFREQ_POLICY_PERFORMANCE (2) -/* - * The polling frequency depends on the capability of the processor. Default - * polling frequency is 1000 times the transition latency of the processor. - */ -#define LATENCY_MULTIPLIER (1000) - struct cpufreq_governor { char name[CPUFREQ_NAME_LEN]; int (*init)(struct cpufreq_policy *policy); |