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author | Christian König <christian.koenig@amd.com> | 2016-08-15 12:06:50 (GMT) |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-22 17:47:23 (GMT) |
commit | faceaf6a731110f6b3c1a57f897a613d720d2156 (patch) | |
tree | 49c580aa3f7d96c3a3dfa666f3cc36b8aadf0181 /drivers | |
parent | 1fdc0b76ea9b6f6a50aa76b7cb7a025f87c1319d (diff) | |
download | linux-faceaf6a731110f6b3c1a57f897a613d720d2156.tar.xz |
drm/amdgpu: cleanup amdgpu_ttm_placement_init
Make it more clear what this function does. No intendet functional change.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 112 |
1 files changed, 60 insertions, 52 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 9113fff..04c376f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -116,87 +116,95 @@ bool amdgpu_ttm_bo_is_amdgpu_bo(struct ttm_buffer_object *bo) static void amdgpu_ttm_placement_init(struct amdgpu_device *adev, struct ttm_placement *placement, - struct ttm_place *placements, + struct ttm_place *places, u32 domain, u64 flags) { u32 c = 0, i; - placement->placement = placements; - placement->busy_placement = placements; - if (domain & AMDGPU_GEM_DOMAIN_VRAM) { + unsigned visible_pfn = adev->mc.visible_vram_size >> PAGE_SHIFT; + if (flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS && - adev->mc.visible_vram_size < adev->mc.real_vram_size) { - placements[c].fpfn = - adev->mc.visible_vram_size >> PAGE_SHIFT; - placements[c++].flags = TTM_PL_FLAG_WC | + adev->mc.visible_vram_size < adev->mc.real_vram_size) { + places[c].fpfn = visible_pfn; + if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) + places[c].lpfn = visible_pfn; + else + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM | TTM_PL_FLAG_TOPDOWN; + c++; } - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | + + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; - if (!(flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)) - placements[c - 1].flags |= TTM_PL_FLAG_TOPDOWN; + if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) + places[c].lpfn = visible_pfn; + else + places[c].flags |= TTM_PL_FLAG_TOPDOWN; + c++; } if (domain & AMDGPU_GEM_DOMAIN_GTT) { - if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_WC | - TTM_PL_FLAG_TT | TTM_PL_FLAG_UNCACHED; - } else { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_CACHED | - TTM_PL_FLAG_TT; - } + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_TT; + if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) + places[c].flags |= TTM_PL_FLAG_WC | + TTM_PL_FLAG_UNCACHED; + else + places[c].flags |= TTM_PL_FLAG_CACHED; + c++; } if (domain & AMDGPU_GEM_DOMAIN_CPU) { - if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_WC | - TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_UNCACHED; - } else { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_CACHED | - TTM_PL_FLAG_SYSTEM; - } + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_SYSTEM; + if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) + places[c].flags |= TTM_PL_FLAG_WC | + TTM_PL_FLAG_UNCACHED; + else + places[c].flags |= TTM_PL_FLAG_CACHED; + c++; } if (domain & AMDGPU_GEM_DOMAIN_GDS) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_UNCACHED | - AMDGPU_PL_FLAG_GDS; + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GDS; + c++; } + if (domain & AMDGPU_GEM_DOMAIN_GWS) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_UNCACHED | - AMDGPU_PL_FLAG_GWS; + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_GWS; + c++; } + if (domain & AMDGPU_GEM_DOMAIN_OA) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_FLAG_UNCACHED | - AMDGPU_PL_FLAG_OA; + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_FLAG_UNCACHED | AMDGPU_PL_FLAG_OA; + c++; } if (!c) { - placements[c].fpfn = 0; - placements[c++].flags = TTM_PL_MASK_CACHING | - TTM_PL_FLAG_SYSTEM; + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; + c++; } + placement->num_placement = c; - placement->num_busy_placement = c; + placement->placement = places; - for (i = 0; i < c; i++) { - if ((flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) && - (placements[i].flags & TTM_PL_FLAG_VRAM) && - !placements[i].fpfn) - placements[i].lpfn = - adev->mc.visible_vram_size >> PAGE_SHIFT; - else - placements[i].lpfn = 0; - } + placement->num_busy_placement = c; + placement->busy_placement = places; } void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *rbo, u32 domain) |