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| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2025-08-20 13:51:16 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-15 23:51:59 +0300 |
| commit | fb5a52dbe9fecde432b4da7ea2d2724a947e9a79 (patch) | |
| tree | 49d892aace3a3b83bcb4eb685de0b0f409608cd9 /drivers/gpu/drm/amd/amdgpu/mes_userqueue.c | |
| parent | 99eeb8358e6cdb7050bf2956370c15dcceda8c7e (diff) | |
| download | linux-fb5a52dbe9fecde432b4da7ea2d2724a947e9a79.tar.xz | |
drm/amdgpu: Implement TTM handling for MMIO_REMAP placement
Implement TTM-level behavior for AMDGPU_PL_MMIO_REMAP so it behaves as a
CPU-visible IO page:
* amdgpu_evict_flags(): mark as unmovable
* amdgpu_res_cpu_visible(): consider CPU-visible
* amdgpu_bo_move(): use null move when src/dst is MMIO_REMAP
* amdgpu_ttm_io_mem_reserve(): program base/is_iomem/caching using
the device's mmio_remap_* metadata
* amdgpu_ttm_io_mem_pfn(): return PFN for the remapped HDP page
* amdgpu_ttm_tt_pde_flags(): set AMDGPU_PTE_SYSTEM for this mem type
v2:
- Drop HDP-specific comment; keep generic remap (Alex).
v3:
- Fix indentation in amdgpu_res_cpu_visible (Christian).
- Use adev->rmmio_remap.bus_addr for MMIO_REMAP bus/PFN calculations
(Alex).
v4:
- Drop unnecessary (resource_size_t) casts in MMIO_REMAP io-mem paths
(Alex)
Cc: Christian König <christian.koenig@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mes_userqueue.c')
0 files changed, 0 insertions, 0 deletions