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drm/amdgpu/sdma7: set sdma hang watchdog

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Set SDMAx_WATCHDOG_CNTL.QUEUE_HANG_COUNT registers
to improve SDMA reliability.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Xiao 2024-04-09 17:31:11 +08:00 committed by Alex Deucher
parent b412351e91
commit 5251b56e38
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
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@ -527,6 +527,13 @@ static int sdma_v7_0_gfx_resume(struct amdgpu_device *adev)
/* set minor_ptr_update to 0 after wptr programed */
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_QUEUE0_MINOR_PTR_UPDATE), 0);
/* Set up sdma hang watchdog */
tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_WATCHDOG_CNTL));
/* 100ms per unit */
tmp = REG_SET_FIELD(tmp, SDMA0_WATCHDOG_CNTL, QUEUE_HANG_COUNT,
max(adev->usec_timeout/100000, 1));
WREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_WATCHDOG_CNTL), tmp);
/* Set up RESP_MODE to non-copy addresses */
tmp = RREG32_SOC15_IP(GC, sdma_v7_0_get_reg_offset(adev, i, regSDMA0_UTCL1_CNTL));
tmp = REG_SET_FIELD(tmp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);