Commit b4b7271e authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
Browse files

drm/amdgpu: Don't enable sdma 4.4.5 CTXEMPTY interrupt 



The sdma context empty interrupt is dropped in amdgpu_irq_dispatch
as unregistered interrupt src_id 243, this interrupt accounts to 1/3 of
total interrupts and causes IH primary ring overflow when running
stressful benchmark application. Disable this interrupt has no side
effect found.

Signed-off-by: default avatarPhilip Yang <Philip.Yang@amd.com>
Reviewed-by: default avatarFelix Kuehling <felix.kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 34c4eb7d

drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c

+5 −3
Original line number Diff line number Diff line
@@ -973,10 +973,12 @@ static int sdma_v4_4_2_inst_start(struct amdgpu_device *adev, 
		/* set utc l1 enable flag always to 1 */

		temp = RREG32_SDMA(i, regSDMA_CNTL);

		temp = REG_SET_FIELD(temp, SDMA_CNTL, UTC_L1_ENABLE, 1);



		if (amdgpu_ip_version(adev, SDMA0_HWIP, 0) < IP_VERSION(4, 4, 5)) {

			/* enable context empty interrupt during initialization */

			temp = REG_SET_FIELD(temp, SDMA_CNTL, CTXEMPTY_INT_ENABLE, 1);

			WREG32_SDMA(i, regSDMA_CNTL, temp);



		}

		if (!amdgpu_sriov_vf(adev)) {

			if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {

				/* unhalt engine */