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Subject[PATCH] idle/intel: add denverton
Date
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
---
drivers/idle/intel_idle.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index c966492..633fc35 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -827,6 +827,35 @@ 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
@@ -1016,6 +1045,11 @@ 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 }

@@ -1052,6 +1086,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
ICPU(0x55, idle_cpu_skx),
ICPU(0x57, idle_cpu_knl),
ICPU(0x5c, idle_cpu_bxt),
+ ICPU(0x5f, idle_cpu_dnv),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
--
1.9.1
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