Commit 278b6fba authored by tiancyin's avatar tiancyin Committed by Alex Deucher
Browse files

drm/amdgpu/sdma5: fix a sdma potential hang in VK_Examples test 



[why]
When page fault happens, it could lead to sdma hang is RESP_MODE =
0 for non-PRT case.

[how]
Setting  SDMAx_UTCL1_CNTL.RESP_MODE to 0b011 to avoid SDMA halt.

Reviewed-by: default avatarJack Xiao <Jack.Xiao@amd.com>
Signed-off-by: default avatartiancyin <tianci.yin@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 4135f10e

drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c

+2 −1
Original line number Diff line number Diff line
@@ -658,7 +658,8 @@ static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev) 


		/* Set up RESP_MODE to non-copy addresses */

		temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));

		temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 2);

		temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);

		temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);

		WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);



		/* program default cache read and write policy */

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