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-rw-r--r--common/recipes-kernel/linux/files/0191-drm-amdgpu-handle-uvd-pg-flags-properly.patch62
1 files changed, 62 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0191-drm-amdgpu-handle-uvd-pg-flags-properly.patch b/common/recipes-kernel/linux/files/0191-drm-amdgpu-handle-uvd-pg-flags-properly.patch
new file mode 100644
index 00000000..1ea6f8c4
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0191-drm-amdgpu-handle-uvd-pg-flags-properly.patch
@@ -0,0 +1,62 @@
+From 5555b7546ad656ee9e895d65a79adf963fe8c615 Mon Sep 17 00:00:00 2001
+From: Alex Deucher <alexander.deucher@amd.com>
+Date: Thu, 4 Feb 2016 23:26:56 -0500
+Subject: [PATCH 0191/1110] drm/amdgpu: handle uvd pg flags properly
+
+Don't attempt to start/stop the uvd block if pg is disabled.
+
+Reviewed-by: Eric Huang <JinHuiEric.Huang@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c | 5 ++++-
+ drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 3 +++
+ drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 3 +++
+ 3 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+index 5e9f73a..9cb5287 100644
+--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
++++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+@@ -848,7 +848,10 @@ static int uvd_v4_2_set_powergating_state(void *handle,
+ * revisit this when there is a cleaner line between
+ * the smc and the hw blocks
+ */
+- struct amdgpu_device *adev = (struct amdgpu_device *)handle;
++ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
++
++ if (!(adev->pg_flags & AMDGPU_PG_SUPPORT_UVD))
++ return 0;
+
+ if (state == AMD_PG_STATE_GATE) {
+ uvd_v4_2_stop(adev);
+diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+index 38864f5..b4623de 100644
+--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+@@ -789,6 +789,9 @@ static int uvd_v5_0_set_powergating_state(void *handle,
+ */
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
++ if (!(adev->pg_flags & AMDGPU_PG_SUPPORT_UVD))
++ return 0;
++
+ if (state == AMD_PG_STATE_GATE) {
+ uvd_v5_0_stop(adev);
+ return 0;
+diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+index 3d59139..c41eda7 100644
+--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+@@ -1030,6 +1030,9 @@ static int uvd_v6_0_set_powergating_state(void *handle,
+ */
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
++ if (!(adev->pg_flags & AMDGPU_PG_SUPPORT_UVD))
++ return 0;
++
+ if (state == AMD_PG_STATE_GATE) {
+ uvd_v6_0_stop(adev);
+ return 0;
+--
+2.7.4
+