redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

intel_idle: Add SKX support 

SKX is similar to BDX

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
hifive-unleashed-5.1
Len Brown 2016-04-06 17:00:58 -04:00 committed by Rafael J. Wysocki
parent 3e66a9ab53
commit f9e71657c2
1 changed files with 34 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
drivers/idle/intel_idle.c
View File

@ -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),
{}
};