[PATCH 11/16] intel_idle: Add SKX support
Tim Gardner
tim.gardner at canonical.com
Wed Aug 24 21:29:41 UTC 2016
From: Len Brown <len.brown at intel.com>
BugLink: http://bugs.launchpad.net/bugs/1591821
SKX is similar to BDX
Signed-off-by: Len Brown <len.brown at intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
(cherry picked from commit f9e71657c2c0a8f1c50884ab45794be2854e158e)
Signed-off-by: Tim Gardner <tim.gardner at canonical.com>
---
drivers/idle/intel_idle.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 862346b..4677c3d 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -660,6 +660,35 @@ static struct cpuidle_state skl_cstates[] = {
.enter = NULL }
};
+static struct cpuidle_state skx_cstates[] = {
+ {
+ .name = "C1-SKX",
+ .desc = "MWAIT 0x00",
+ .flags = MWAIT2flg(0x00),
+ .exit_latency = 2,
+ .target_residency = 2,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C1E-SKX",
+ .desc = "MWAIT 0x01",
+ .flags = MWAIT2flg(0x01),
+ .exit_latency = 10,
+ .target_residency = 20,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .name = "C6-SKX",
+ .desc = "MWAIT 0x20",
+ .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 133,
+ .target_residency = 600,
+ .enter = &intel_idle,
+ .enter_freeze = intel_idle_freeze, },
+ {
+ .enter = NULL }
+};
+
static struct cpuidle_state atom_cstates[] = {
{
.name = "C1E-ATM",
@@ -907,6 +936,10 @@ static const struct idle_cpu idle_cpu_skl = {
.disable_promotion_to_c1e = true,
};
+static const struct idle_cpu idle_cpu_skx = {
+ .state_table = skx_cstates,
+ .disable_promotion_to_c1e = true,
+};
static const struct idle_cpu idle_cpu_avn = {
.state_table = avn_cstates,
@@ -948,6 +981,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
ICPU(0x56, idle_cpu_bdw),
ICPU(0x4e, idle_cpu_skl),
ICPU(0x5e, idle_cpu_skl),
+ ICPU(0x55, idle_cpu_skx),
ICPU(0x57, idle_cpu_knl),
{}
};
--
2.7.4
More information about the kernel-team
mailing list