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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4167-drm-amdgpu-No-need-to-check-gfxoff-status-after-enab.patch43
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4167-drm-amdgpu-No-need-to-check-gfxoff-status-after-enab.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4167-drm-amdgpu-No-need-to-check-gfxoff-status-after-enab.patch
new file mode 100644
index 00000000..57d925e9
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4167-drm-amdgpu-No-need-to-check-gfxoff-status-after-enab.patch
@@ -0,0 +1,43 @@
+From d37f0200c8aa88982cb2358aac4684195d407585 Mon Sep 17 00:00:00 2001
+From: chen gong <curry.gong@amd.com>
+Date: Wed, 16 Oct 2019 18:04:02 +0800
+Subject: [PATCH 4167/4736] drm/amdgpu: No need to check gfxoff status after
+ enable gfxoff feature
+
+smu_send_smc_msg(smu, SMU_MSG_AllowGfxOff) Just turn on a switch.
+
+As to when GPU get into "GFXoff" will be up to drawing load.
+
+So we can not sure which state GPU should be in after enable gfxoff
+feature.
+
+Signed-off-by: chen gong <curry.gong@amd.com>
+Acked-by: Evan Quan <evan.quan@amd.com>
+Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 9 ---------
+ 1 file changed, 9 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+index c9691d0fb523..cac4269cf1d1 100644
+--- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
++++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+@@ -244,15 +244,6 @@ static int smu_v12_0_gfx_off_control(struct smu_context *smu, bool enable)
+ if (enable) {
+ ret = smu_send_smc_msg(smu, SMU_MSG_AllowGfxOff);
+
+- /* confirm gfx is back to "off" state, timeout is 5 seconds */
+- while (!(smu_v12_0_get_gfxoff_status(smu) == 0)) {
+- msleep(10);
+- timeout--;
+- if (timeout == 0) {
+- DRM_ERROR("enable gfxoff timeout and failed!\n");
+- break;
+- }
+- }
+ } else {
+ ret = smu_send_smc_msg(smu, SMU_MSG_DisallowGfxOff);
+
+--
+2.17.1
+