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

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[ Upstream commit b4b7271e5ca95b581f2fcc4ae852c4079215e92d ]

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: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Philip Yang
2024-11-26 15:45:32 -05:00
committed by Greg Kroah-Hartman
parent b79eaf9b86
commit 9f95245033
1 changed files with 5 additions and 3 deletions
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drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
+5 -3
View File
@@ -953,10 +953,12 @@ 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);
/* 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_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 */