If there are 2 gfx rings, the doorbell lower range of second ring
will override the first ring.
Signed-off-by: Jinzhou.Su <jinzhou...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index ffbda6680a68..f33e54b01d3a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -6357,8 +6357,11 @@ static int gfx_v10_0_gfx_mqd_init(struct amdgpu_ring
*ring)
DOORBELL_EN, 0);
mqd->cp_rb_doorbell_control = tmp;
- /* set doorbell range */
- gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
+ /*if there are 2 gfx rings, set the lower doorbell range of the first
ring,
+ *otherwise the range of the second ring will override the first ring */
+ if (ring->doorbell_index == adev->doorbell_index.gfx_ring0 << 1)
+ gfx_v10_0_cp_gfx_set_doorbell(adev, ring);
+
/* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
ring->wptr = 0;
mqd->cp_gfx_hqd_rptr = RREG32_SOC15(GC, 0, mmCP_GFX_HQD_RPTR);
--
2.17.1
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