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| author | Christian König <christian.koenig@amd.com> | 2017-01-30 11:09:31 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-03-29 23:52:56 -0400 |
| commit | 284710fa6c3a5fddbc0f8c6b3a07861a312c18d2 (patch) | |
| tree | 8e0b7dd3c8485a308e6066e548f1548fd72feae5 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | a5f6b5b1e89067d3de30ae04693f96189cc05aec (diff) | |
| download | lwn-284710fa6c3a5fddbc0f8c6b3a07861a312c18d2.tar.gz lwn-284710fa6c3a5fddbc0f8c6b3a07861a312c18d2.zip | |
drm/amdgpu: add basic PRT support (v2)
Future hardware generations can handle PRT flags on a per page basis,
but current hardware can only turn it on globally.
Add the basic handling for both, a global callback to enable/disable
triggered by setting a per mapping flag.
v2: agd: rebase fixes
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index c1b913541739..618f12884eed 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -294,6 +294,8 @@ struct amdgpu_gart_funcs { uint32_t gpu_page_idx, /* pte/pde to update */ uint64_t addr, /* addr to write into pte/pde */ uint32_t flags); /* access flags */ + /* enable/disable PRT support */ + void (*set_prt)(struct amdgpu_device *adev, bool enable); }; /* provided by the ih block */ |