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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2024-11-07 14:56:07 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-11-11 17:48:50 +0300 |
| commit | f557e0d1c2e6eb6af6d4468ed2c0ee91829370e2 (patch) | |
| tree | 27c83c30bbae8addb133605e669b4d75e1f5e9eb | |
| parent | ee702fdaf1563078758065aca7beb5e5d89367e5 (diff) | |
| download | linux-f557e0d1c2e6eb6af6d4468ed2c0ee91829370e2.tar.xz | |
intel_idle: add Granite Rapids Xeon D support
Add Granite Rapids Xeon D C-states support: C1, C1E, C6, and C6P.
The C-states are basically the same as in Granite Rapids Xeon SP/AP, but
characteristics (latency, target residency) are a bit different.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Link: https://patch.msgid.link/20241107115608.52233-1-artem.bityutskiy@linux.intel.com
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/idle/intel_idle.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 67aebfe0fed6..ac4d8faa3886 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1069,6 +1069,47 @@ static struct cpuidle_state gnr_cstates[] __initdata = { .enter = NULL } }; +static struct cpuidle_state gnrd_cstates[] __initdata = { + { + .name = "C1", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00), + .exit_latency = 1, + .target_residency = 1, + .enter = &intel_idle, + .enter_s2idle = intel_idle_s2idle, }, + { + .name = "C1E", + .desc = "MWAIT 0x01", + .flags = MWAIT2flg(0x01) | CPUIDLE_FLAG_ALWAYS_ENABLE, + .exit_latency = 4, + .target_residency = 4, + .enter = &intel_idle, + .enter_s2idle = intel_idle_s2idle, }, + { + .name = "C6", + .desc = "MWAIT 0x20", + .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED | + CPUIDLE_FLAG_INIT_XSTATE | + CPUIDLE_FLAG_PARTIAL_HINT_MATCH, + .exit_latency = 220, + .target_residency = 650, + .enter = &intel_idle, + .enter_s2idle = intel_idle_s2idle, }, + { + .name = "C6P", + .desc = "MWAIT 0x21", + .flags = MWAIT2flg(0x21) | CPUIDLE_FLAG_TLB_FLUSHED | + CPUIDLE_FLAG_INIT_XSTATE | + CPUIDLE_FLAG_PARTIAL_HINT_MATCH, + .exit_latency = 240, + .target_residency = 750, + .enter = &intel_idle, + .enter_s2idle = intel_idle_s2idle, }, + { + .enter = NULL } +}; + static struct cpuidle_state atom_cstates[] __initdata = { { .name = "C1E", @@ -1508,6 +1549,12 @@ static const struct idle_cpu idle_cpu_gnr __initconst = { .use_acpi = true, }; +static const struct idle_cpu idle_cpu_gnrd __initconst = { + .state_table = gnrd_cstates, + .disable_promotion_to_c1e = true, + .use_acpi = true, +}; + static const struct idle_cpu idle_cpu_avn __initconst = { .state_table = avn_cstates, .disable_promotion_to_c1e = true, @@ -1593,6 +1640,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = { X86_MATCH_VFM(INTEL_SAPPHIRERAPIDS_X, &idle_cpu_spr), X86_MATCH_VFM(INTEL_EMERALDRAPIDS_X, &idle_cpu_spr), X86_MATCH_VFM(INTEL_GRANITERAPIDS_X, &idle_cpu_gnr), + X86_MATCH_VFM(INTEL_GRANITERAPIDS_D, &idle_cpu_gnrd), X86_MATCH_VFM(INTEL_XEON_PHI_KNL, &idle_cpu_knl), X86_MATCH_VFM(INTEL_XEON_PHI_KNM, &idle_cpu_knl), X86_MATCH_VFM(INTEL_ATOM_GOLDMONT, &idle_cpu_bxt), |