From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 17 Apr 2018 14:47:42 +0200
Subject: drm/amdgpu: limit reg_write_reg_wait workaround to SRIOV v2
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Git-commit: 58cd8fbc64b03d0e9961d627526bd07edbea00b9
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Turned out that this locks up some bare metal Vega10.
v2: fix stupid typo
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4144,7 +4144,12 @@ static void gfx_v9_0_ring_emit_reg_write
{
int usepfp = (ring->funcs->type == AMDGPU_RING_TYPE_GFX);
- gfx_v9_0_wait_reg_mem(ring, usepfp, 0, 1, reg0, reg1, ref, mask, 0x20);
+ if (amdgpu_sriov_vf(ring->adev))
+ gfx_v9_0_wait_reg_mem(ring, usepfp, 0, 1, reg0, reg1,
+ ref, mask, 0x20);
+ else
+ amdgpu_ring_emit_reg_write_reg_wait_helper(ring, reg0, reg1,
+ ref, mask);
}
static void gfx_v9_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,