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6.6 velinux intel idle support gnrd cwf #49

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6.6 velinux intel idle support gnrd cwf #49

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2915d93
intel_idle: add Granite Rapids Xeon D support
dedekind Nov 7, 2024
a7d9fb8
intel_idle: add Clearwater Forest SoC support
dedekind Dec 3, 2024
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49 changes: 49 additions & 0 deletions drivers/idle/intel_idle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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",
Expand Down Expand Up @@ -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,
Expand Down Expand Up @@ -1589,6 +1636,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, &idle_cpu_spr),
X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X, &idle_cpu_spr),
X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_X, &idle_cpu_gnr),
X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_D, &idle_cpu_gnrd),
X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &idle_cpu_knl),
X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &idle_cpu_knl),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &idle_cpu_bxt),
Expand All @@ -1597,6 +1645,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &idle_cpu_snr),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT, &idle_cpu_grr),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_CRESTMONT_X, &idle_cpu_srf),
X86_MATCH_INTEL_FAM6_MODEL(ATOM_DARKMONT_X, &idle_cpu_srf),
{}
};

Expand Down