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| author | Andrew Lichmanov <Andrew.Lichmanov@amd.com> | 2026-06-19 15:04:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-07-01 11:38:23 -0400 |
| commit | 94b9b67fec954dc7cfdb22164ca00e5980307a1e (patch) | |
| tree | 03ead20c7c10939e4d768b8cbd1d3742650ed6f1 | |
| parent | 1cc0fbdd9578cf9755bf571f5a3ef44dbe388dee (diff) | |
| download | linux-stable-94b9b67fec954dc7cfdb22164ca00e5980307a1e.tar.gz linux-stable-94b9b67fec954dc7cfdb22164ca00e5980307a1e.zip | |
drm/amd/display: Disable mem gating for DCHVM on DCHVM init
[Why] Hang occurs with global gating enabled if req=1
Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Andrew Lichmanov <Andrew.Lichmanov@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c index 82d4e3e0e5e8..5e5a7a74346d 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c @@ -571,7 +571,7 @@ void dcn35_dchvm_init(struct hubbub *hubbub) if (riommu_active) { // Disable gating and memory power requests - REG_UPDATE(DCHVM_MEM_CTRL, HVM_GPUVMRET_PWR_REQ_DIS, 1); + REG_UPDATE_2(DCHVM_MEM_CTRL, HVM_GPUVMRET_PWR_REQ_DIS, 1, HVM_GPUVMRET_FORCE_REQ, 0); REG_UPDATE_4(DCHVM_CLK_CTRL, HVM_DISPCLK_R_GATE_DIS, 1, HVM_DISPCLK_G_GATE_DIS, 1, |