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Skylake: update C state latency and power numbers 

The values are taken from latest BWG as well fsp src.

BRANCH=none
BUG=chrome-os-partner:45208
TEST=Built and boot on kunimitsu
Signed-off-by: Robbie Zhang <robbie.zhang@intel.com>

Change-Id: Ia6bd336a71b0313801b59990c78822fa0d789e36
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c955ab43245153d76932daa527f1b5ebea859164
Original-Change-Id: I3f7307951753c2bbe6319f627a82a93359c4e61b
Original-Reviewed-on: https://chromium-review.googlesource.com/299480
Original-Commit-Ready: Wenkai Du <wenkai.du@intel.com>
Original-Tested-by: Wenkai Du <wenkai.du@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11659
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
robbie zhang 2015-09-11 14:25:15 -07:00 committed by Patrick Georgi
parent a5be7fa5c1
commit c16b1fd8ac
2 changed files with 27 additions and 18 deletions
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24
src/soc/intel/skylake/acpi.c
View File

@ -77,62 +77,62 @@ static acpi_cstate_t cstate_map[NUM_C_STATES] = {
[C_STATE_C0] = { },
[C_STATE_C1] = {
.latency = 0,
.power = 1000,
.power = C1_POWER,
.resource = MWAIT_RES(0, 0),
},
[C_STATE_C1E] = {
.latency = 0,
.power = 1000,
.power = C1_POWER,
.resource = MWAIT_RES(0, 1),
},
[C_STATE_C3] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(0),
.power = 500,
.power = C3_POWER,
.resource = MWAIT_RES(1, 0),
},
[C_STATE_C6_SHORT_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = 350,
.power = C6_POWER,
.resource = MWAIT_RES(2, 0),
},
[C_STATE_C6_LONG_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = 350,
.power = C6_POWER,
.resource = MWAIT_RES(2, 1),
},
[C_STATE_C7_SHORT_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = 200,
.power = C7_POWER,
.resource = MWAIT_RES(3, 0),
},
[C_STATE_C7_LONG_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = 200,
.power = C7_POWER,
.resource = MWAIT_RES(3, 1),
},
[C_STATE_C7S_SHORT_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(1),
.power = 200,
.power = C7_POWER,
.resource = MWAIT_RES(3, 2),
},
[C_STATE_C7S_LONG_LAT] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(2),
.power = 200,
.power = C7_POWER,
.resource = MWAIT_RES(3, 3),
},
[C_STATE_C8] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(3),
.power = 200,
.power = C8_POWER,
.resource = MWAIT_RES(4, 0),
},
[C_STATE_C9] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(4),
.power = 200,
.power = C9_POWER,
.resource = MWAIT_RES(5, 0),
},
[C_STATE_C10] = {
.latency = C_STATE_LATENCY_FROM_LAT_REG(5),
.power = 200,
.power = C10_POWER,
.resource = MWAIT_RES(6, 0),
},
};

21
src/soc/intel/skylake/include/soc/cpu.h
View File

@ -35,12 +35,21 @@
#define CPU_BCLK 100
/* Latency times in units of 1024ns. */
#define C_STATE_LATENCY_CONTROL_0_LIMIT 0x42
#define C_STATE_LATENCY_CONTROL_1_LIMIT 0x73
#define C_STATE_LATENCY_CONTROL_2_LIMIT 0x91
#define C_STATE_LATENCY_CONTROL_3_LIMIT 0xe4
#define C_STATE_LATENCY_CONTROL_4_LIMIT 0x145
#define C_STATE_LATENCY_CONTROL_5_LIMIT 0x1ef
#define C_STATE_LATENCY_CONTROL_0_LIMIT 0x4e
#define C_STATE_LATENCY_CONTROL_1_LIMIT 0x76
#define C_STATE_LATENCY_CONTROL_2_LIMIT 0x94
#define C_STATE_LATENCY_CONTROL_3_LIMIT 0xfa
#define C_STATE_LATENCY_CONTROL_4_LIMIT 0x14c
#define C_STATE_LATENCY_CONTROL_5_LIMIT 0x3f2
/* Power in units of mW */
#define C1_POWER 0x3e8
#define C3_POWER 0x1f4
#define C6_POWER 0x15e
#define C7_POWER 0xc8
#define C8_POWER 0xc8
#define C9_POWER 0xc8
#define C10_POWER 0xc8
#define C_STATE_LATENCY_MICRO_SECONDS(limit, base) \
(((1 << ((base)*5)) * (limit)) / 1000)