serie is Reviewed-by: Flora Cui <[email protected]>
在 11/1/2018 1:57 PM, Rex Zhu 写道: > Get the sdma index from ring > > v2: refine function name > > Signed-off-by: Rex Zhu <[email protected]> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c | 16 ++++++++++++++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 1 + > 2 files changed, 17 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c > index c912230..115bb0c 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.c > @@ -40,3 +40,19 @@ struct amdgpu_sdma_instance > *amdgpu_sdma_get_instance_from_ring(struct amdgpu_ri > > return NULL; > } > + > +int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t > *index) > +{ > + struct amdgpu_device *adev = ring->adev; > + int i; > + > + for (i = 0; i < adev->sdma.num_instances; i++) { > + if (ring == &adev->sdma.instance[i].ring || > + ring == &adev->sdma.instance[i].page) { > + *index = i; > + return 0; > + } > + } > + > + return -EINVAL; > +} > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h > b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h > index 664f549..16b1a6a 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h > @@ -95,5 +95,6 @@ struct amdgpu_buffer_funcs { > > struct amdgpu_sdma_instance * > amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring); > +int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t > *index); > > #endif _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
