Re: [PATCH 1/3] drm/amdgpu: change Vega IH ring 1 config

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Ping? Can anybody review this?

Thanks,
Christian.

Am 04.03.19 um 20:10 schrieb Christian König:
Disable overflow and enable full drain. This makes fault handling on ring 1
much more reliable since we don't generate back pressure any more.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index 6d1f804277f8..d4a3cc413af8 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -203,6 +203,10 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1);
  		ih_rb_cntl = vega10_ih_rb_cntl(ih, ih_rb_cntl);
+		ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+					   WPTR_OVERFLOW_ENABLE, 0);
+		ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL,
+					   RB_FULL_DRAIN_ENABLE, 1);
  		WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL_RING1, ih_rb_cntl);
/* set rptr, wptr to 0 */

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