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Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1073-drm-amd-powerplay-fix-performance-drop-on-Vega10.patch')
-rw-r--r--meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1073-drm-amd-powerplay-fix-performance-drop-on-Vega10.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1073-drm-amd-powerplay-fix-performance-drop-on-Vega10.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1073-drm-amd-powerplay-fix-performance-drop-on-Vega10.patch
new file mode 100644
index 00000000..d9458f85
--- /dev/null
+++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1073-drm-amd-powerplay-fix-performance-drop-on-Vega10.patch
@@ -0,0 +1,37 @@
+From 79f33d126ac0758c913ff23e6f87a2fafb45a116 Mon Sep 17 00:00:00 2001
+From: Eric Huang <JinHuiEric.Huang@amd.com>
+Date: Thu, 19 Oct 2017 14:55:18 -0400
+Subject: [PATCH 1073/4131] drm/amd/powerplay: fix performance drop on Vega10
+
+Setting package power PID to 1 fixes performance drop caused by
+updated SMU FW, before DPM is enabled.
+
+Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
+Acked-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+index 015f149..18d54bb 100644
+--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
++++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+@@ -2879,6 +2879,15 @@ static int vega10_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
+ "DPM is already running right , skipping re-enablement!",
+ return 0);
+
++ if ((data->smu_version == 0x001c2c00) ||
++ (data->smu_version == 0x001c2d00)) {
++ tmp_result = smum_send_msg_to_smc_with_parameter(hwmgr,
++ PPSMC_MSG_UpdatePkgPwrPidAlpha, 1);
++ PP_ASSERT_WITH_CODE(!tmp_result,
++ "Failed to set package power PID!",
++ return tmp_result);
++ }
++
+ tmp_result = vega10_construct_voltage_tables(hwmgr);
+ PP_ASSERT_WITH_CODE(!tmp_result,
+ "Failed to contruct voltage tables!",
+--
+2.7.4
+