From: Ken Wang <Ken.Wang@xxxxxxx>
Change-Id: If01e32baa903c8c35991b1517c6d8bde98f5dae2
Signed-off-by: Ken Wang <Ken.Wang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 68a0d40..66312d9 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1670,6 +1670,7 @@ static int gfx_v9_0_cp_gfx_resume(struct amdgpu_device *adev)
u32 tmp;
u32 rb_bufsz;
u64 rb_addr, rptr_addr, wptr_gpu_addr;
+ int r;
/* Set the write pointer delay */
WREG32_SOC15(GC, 0, mmCP_RB_WPTR_DELAY, 0);
@@ -1729,6 +1730,17 @@ static int gfx_v9_0_cp_gfx_resume(struct amdgpu_device *adev)
/* start the ring */
gfx_v9_0_cp_gfx_start(adev);
+
+ r = amdgpu_ring_alloc(ring, 3);
+ if (r) {
+ return r;
+ }
+ amdgpu_ring_write(ring, PACKET3(PACKET3_SET_UCONFIG_REG, 1));
+ tmp = ((2 << 28) | (SOC15_REG_OFFSET(GC, 0, mmVGT_INDEX_TYPE) - PACKET3_SET_UCONFIG_REG_START));
+ amdgpu_ring_write(ring, tmp);
+ amdgpu_ring_write(ring, 0);
+ amdgpu_ring_commit(ring);
+
ring->ready = true;
return 0;
--
2.7.4
