From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Tue, 15 Aug 2017 23:00:16 -0400
Subject: drm/amdgpu: Disable GFX PG on CZ
Git-commit: c2cade3dd15914b13de5e6d8c6241ed7919475ed
Patch-mainline: v4.14-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
It's causing problems with user mode queues and the HIQ, and can
lead to hard hangs during boot after programming RLC_CP_SCHEDULERS.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/vi.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1028,8 +1028,7 @@ static int vi_common_early_init(void *ha
/* rev0 hardware requires workarounds to support PG */
adev->pg_flags = 0;
if (adev->rev_id != 0x00 || CZ_REV_BRISTOL(adev->pdev->revision)) {
- adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG |
- AMD_PG_SUPPORT_GFX_SMG |
+ adev->pg_flags |= AMD_PG_SUPPORT_GFX_SMG |
AMD_PG_SUPPORT_GFX_PIPELINE |
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_UVD |