1 files changed, 37 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4048-drm-amdgpu-fix-to-disable-powergating-in-hw_fini.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4048-drm-amdgpu-fix-to-disable-powergating-in-hw_fini.patch
new file mode 100644
index 00000000..92383150
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4048-drm-amdgpu-fix-to-disable-powergating-in-hw_fini.patch
@@ -0,0 +1,37 @@
+From 1ca8ca9522a1395542e69acf264013e197177940 Mon Sep 17 00:00:00 2001
+From: Huang Rui <ray.huang@amd.com>
+Date: Tue, 27 Feb 2018 13:43:59 +0800
+Subject: [PATCH 4048/4131] drm/amdgpu: fix to disable powergating in hw_fini
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+We need enable CGPG and GFXOFF together. If only enable one of them, this system
+will get hang after startx (do draw command). So when gfxoff is disabled, it
+also need disable CGPG after that.
+
+Signed-off-by: Huang Rui <ray.huang@amd.com>
+Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
+Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
+Acked-by: Christian König <christian.koenig@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+index 26d516b..2c634a2 100644
+--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+@@ -3133,6 +3133,9 @@ static int gfx_v9_0_hw_fini(void *handle)
+ 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ 	int i;
+ 
++	amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_GFX,
++					       AMD_PG_STATE_UNGATE);
++
+ 	amdgpu_irq_put(adev, &adev->gfx.priv_reg_irq, 0);
+ 	amdgpu_irq_put(adev, &adev->gfx.priv_inst_irq, 0);
+ 
+-- 
+2.7.4
+