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| author | Alex Deucher <alexander.deucher@amd.com> | 2016-06-17 17:05:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-07 14:54:46 -0400 |
| commit | 93dcc37d2cc9d29e4cc36fd1cc8a9ca4f7109b1d (patch) | |
| tree | b338ce6d6ce70cdeec24777eb88090fdb5d25363 | |
| parent | 9de06de80e260777c14a0a53ac4326c2d2a5e1eb (diff) | |
| download | linux-93dcc37d2cc9d29e4cc36fd1cc8a9ca4f7109b1d.tar.bz2 | |
drm/amdgpu: disable compute pipeline sync workaround when using fixed fw
No need to stall the pipe when we are using firmware with the
fix.
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index adb87789cc34..8f04857fbe1b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -311,6 +311,32 @@ error: return r; } +static bool amdgpu_vm_ring_has_compute_vm_bug(struct amdgpu_ring *ring) +{ + struct amdgpu_device *adev = ring->adev; + const struct amdgpu_ip_block_version *ip_block; + + if (ring->type != AMDGPU_RING_TYPE_COMPUTE) + /* only compute rings */ + return false; + + ip_block = amdgpu_get_ip_block(adev, AMD_IP_BLOCK_TYPE_GFX); + if (!ip_block) + return false; + + if (ip_block->major <= 7) { + /* gfx7 has no workaround */ + return true; + } else if (ip_block->major == 8) { + if (adev->gfx.mec_fw_version >= 673) + /* gfx8 is fixed in MEC firmware 673 */ + return false; + else + return true; + } + return false; +} + /** * amdgpu_vm_flush - hardware flush the vm * @@ -339,7 +365,7 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, if (ring->funcs->emit_pipeline_sync && ( pd_addr != AMDGPU_VM_NO_FLUSH || gds_switch_needed || - ring->type == AMDGPU_RING_TYPE_COMPUTE)) + amdgpu_vm_ring_has_compute_vm_bug(ring))) amdgpu_ring_emit_pipeline_sync(ring); if (ring->funcs->emit_vm_flush && |