diff options
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 4c8b23d1a928..170ab8e01075 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -826,6 +826,35 @@ static struct cpuidle_state bxt_cstates[] = { .enter = NULL } }; +static struct cpuidle_state dnv_cstates[] = { + { + .name = "C1-DNV", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00), + .exit_latency = 2, + .target_residency = 2, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C1E-DNV", + .desc = "MWAIT 0x01", + .flags = MWAIT2flg(0x01), + .exit_latency = 10, + .target_residency = 20, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C6-DNV", + .desc = "MWAIT 0x20", + .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 50, + .target_residency = 500, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .enter = NULL } +}; + /** * intel_idle * @dev: cpuidle_device @@ -1015,6 +1044,11 @@ static const struct idle_cpu idle_cpu_bxt = { .disable_promotion_to_c1e = true, }; +static const struct idle_cpu idle_cpu_dnv = { + .state_table = dnv_cstates, + .disable_promotion_to_c1e = true, +}; + #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } @@ -1051,6 +1085,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = { ICPU(INTEL_FAM6_SKYLAKE_X, idle_cpu_skx), ICPU(INTEL_FAM6_XEON_PHI_KNL, idle_cpu_knl), ICPU(INTEL_FAM6_ATOM_GOLDMONT, idle_cpu_bxt), + ICPU(INTEL_FAM6_ATOM_DENVERTON, idle_cpu_dnv), {} }; |