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

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[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: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: tiancyin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
tiancyin 2019-04-22 17:07:06 +08:00 committed by Alex Deucher
parent 4135f10e26
commit 278b6fba22
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
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@ -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 */