diff options
| author | Mukul Joshi <mukul.joshi@amd.com> | 2026-04-27 19:09:45 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-09-02 15:24:01 -0400 |
| commit | 09152b002ffde5bc769656aaa42728a2046c8bb5 (patch) | |
| tree | 7d1370aed2de96c7507f5d19b7787e0412fed200 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | 742beddd51b38293b15509c792c94cba058cfa43 (diff) | |
drm/amdgpu: Add a new NPA Address space
Add a new address space for NPA address management.
This is needed for sharing buffer objects across GPUs
with each running their own OS. The NPA address space
size can change across different HW generations so the
size is initialized during early init of the driver boot
up process.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 5d9d137209b6..fc6d3fa62d79 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -204,6 +204,14 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain) c++; } + if (domain & AMDGPU_GEM_DOMAIN_NPA) { + places[c].fpfn = 0; + places[c].lpfn = 0; + places[c].mem_type = AMDGPU_PL_NPA; + places[c].flags = 0; + c++; + } + if (!c) { places[c].fpfn = 0; places[c].lpfn = 0; @@ -1663,6 +1671,9 @@ u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m) case AMDGPU_PL_MMIO_REMAP: placement = "MMIO REMAP"; break; + case AMDGPU_PL_NPA: + placement = "NPA"; + break; case TTM_PL_SYSTEM: default: placement = "CPU"; |