diff options
| author | Monk Liu <Monk.Liu@amd.com> | 2020-02-06 18:55:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-25 19:01:25 +0300 |
| commit | 6325b38d892b68902e38a9953abb6d42bfd389fb (patch) | |
| tree | 6237bfe490e37e679cc3db9f47d50c4ba619b342 /drivers/gpu/drm | |
| parent | 9cfb06920e2b4ea9ae903be640927b8da0fd5b68 (diff) | |
| download | linux-6325b38d892b68902e38a9953abb6d42bfd389fb.tar.xz | |
drm/amdgpu: fix colliding of preemption
what:
some os preemption path is messed up with world switch preemption
fix:
cleanup those logics so os preemption not mixed with world switch
this patch is a general fix for issues comes from SRIOV MCBP, but
there is still UMD side issues not resovlved yet, so this patch
cannot fix all world switch bug.
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 8 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c index a2ee30b16212..7854c053e85d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c @@ -70,7 +70,8 @@ uint64_t amdgpu_sdma_get_csa_mc_addr(struct amdgpu_ring *ring, uint32_t index = 0; int r; - if (vmid == 0 || !amdgpu_mcbp) + /* don't enable OS preemption on SDMA under SRIOV */ + if (amdgpu_sriov_vf(adev) || vmid == 0 || !amdgpu_mcbp) return 0; r = amdgpu_sdma_get_index_from_ring(ring, &index); diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 22bbb36c768e..bb2f990ee070 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -4413,7 +4413,7 @@ static void gfx_v10_0_ring_emit_ib_gfx(struct amdgpu_ring *ring, control |= ib->length_dw | (vmid << 24); - if (amdgpu_mcbp && (ib->flags & AMDGPU_IB_FLAG_PREEMPT)) { + if ((amdgpu_sriov_vf(ring->adev) || amdgpu_mcbp) && (ib->flags & AMDGPU_IB_FLAG_PREEMPT)) { control |= INDIRECT_BUFFER_PRE_ENB(1); if (flags & AMDGPU_IB_PREEMPTED) @@ -4421,7 +4421,7 @@ static void gfx_v10_0_ring_emit_ib_gfx(struct amdgpu_ring *ring, if (!(ib->flags & AMDGPU_IB_FLAG_CE)) gfx_v10_0_ring_emit_de_meta(ring, - flags & AMDGPU_IB_PREEMPTED ? true : false); + (!amdgpu_sriov_vf(ring->adev) && flags & AMDGPU_IB_PREEMPTED) ? true : false); } amdgpu_ring_write(ring, header); @@ -4568,9 +4568,9 @@ static void gfx_v10_0_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flag { uint32_t dw2 = 0; - if (amdgpu_mcbp) + if (amdgpu_mcbp || amdgpu_sriov_vf(ring->adev)) gfx_v10_0_ring_emit_ce_meta(ring, - flags & AMDGPU_IB_PREEMPTED ? true : false); + (!amdgpu_sriov_vf(ring->adev) && flags & AMDGPU_IB_PREEMPTED) ? true : false); gfx_v10_0_ring_emit_tmz(ring, true); |