diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/5613-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/5613-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/5613-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/5613-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch new file mode 100644 index 00000000..314c9b67 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/5613-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch @@ -0,0 +1,49 @@ +From e991787e85a908ca0139bdf202b6174584c08272 Mon Sep 17 00:00:00 2001 +From: Kenneth Feng <kenneth.feng@amd.com> +Date: Thu, 6 Dec 2018 11:56:14 +0800 +Subject: [PATCH 5613/5725] drm/amdgpu/powerplay: Apply avfs cks-off voltages + on VI + +Instead of EVV cks-off voltages, avfs cks-off voltages can avoid +the overshoot voltages when switching sclk. + +Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> +Acked-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h | 2 ++ + drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c | 6 ++++++ + 2 files changed, 8 insertions(+) + +diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h b/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h +index 62f36ba..c1a99df 100644 +--- a/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h ++++ b/drivers/gpu/drm/amd/powerplay/inc/smu7_ppsmc.h +@@ -386,6 +386,8 @@ typedef uint16_t PPSMC_Result; + #define PPSMC_MSG_AgmResetPsm ((uint16_t) 0x403) + #define PPSMC_MSG_ReadVftCell ((uint16_t) 0x404) + ++#define PPSMC_MSG_ApplyAvfsCksOffVoltage ((uint16_t) 0x415) ++ + #define PPSMC_MSG_GFX_CU_PG_ENABLE ((uint16_t) 0x280) + #define PPSMC_MSG_GFX_CU_PG_DISABLE ((uint16_t) 0x281) + #define PPSMC_MSG_GetCurrPkgPwr ((uint16_t) 0x282) +diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c +index 51892cc..90c1215 100644 +--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c ++++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c +@@ -1998,6 +1998,12 @@ int polaris10_thermal_avfs_enable(struct pp_hwmgr *hwmgr) + + smum_send_msg_to_smc(hwmgr, PPSMC_MSG_EnableAvfs); + ++ /* Apply avfs cks-off voltages to avoid the overshoot ++ * when switching to the highest sclk frequency ++ */ ++ if (data->apply_avfs_cks_off_voltage) ++ smum_send_msg_to_smc(hwmgr, PPSMC_MSG_ApplyAvfsCksOffVoltage); ++ + return 0; + } + +-- +2.7.4 + |