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Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0575-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch')
-rw-r--r--meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0575-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch49
1 files changed, 49 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0575-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0575-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch
new file mode 100644
index 00000000..d960774f
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0575-drm-amdgpu-powerplay-Apply-avfs-cks-off-voltages-on-.patch
@@ -0,0 +1,49 @@
+From 2a6aa68c16354bfa6b7a2fa1ee253356ba695df1 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 0575/2940] 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 62f36ba2435b..c1a99dfe4913 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 51892cc8f149..90c1215c6f5e 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;
+ }
+
+--
+2.17.1
+