diff options
| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2025-08-20 16:39:38 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-15 16:52:07 -0400 |
| commit | a3ac30ffea5de2f511696ae46f5a7f793e6d4bfb (patch) | |
| tree | 81a632fc688ae4f6ccdf7b917c5f22057736d477 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | fb5a52dbe9fecde432b4da7ea2d2724a947e9a79 (diff) | |
drm/amdgpu/ttm: Initialize AMDGPU_PL_MMIO_REMAP Heap
Add a one-page TTM range manager for AMDGPU_PL_MMIO_REMAP via
amdgpu_ttm_init_on_chip(). This only registers the placement with TTM;
no BO is allocated in this patch.
The singleton 4K remap BO is created and freed in the following patch.
This split follows to separate heap bring-up from BO allocation.
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/amdgpu_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 42f97d568059..1a68ba17a62d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -2021,6 +2021,13 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) return r; } + /* Initialize MMIO-remap pool (single page 4K) */ + r = amdgpu_ttm_init_on_chip(adev, AMDGPU_PL_MMIO_REMAP, 1); + if (r) { + dev_err(adev->dev, "Failed initializing MMIO-remap heap.\n"); + return r; + } + /* Initialize preemptible memory pool */ r = amdgpu_preempt_mgr_init(adev); if (r) { @@ -2083,6 +2090,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev) } amdgpu_bo_free_kernel(&adev->mman.sdma_access_bo, NULL, &adev->mman.sdma_access_ptr); + amdgpu_ttm_fw_reserve_vram_fini(adev); amdgpu_ttm_drv_reserve_vram_fini(adev); @@ -2104,6 +2112,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev) ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GWS); ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_OA); ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_DOORBELL); + ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_MMIO_REMAP); ttm_device_fini(&adev->mman.bdev); adev->mman.initialized = false; dev_info(adev->dev, "amdgpu: ttm finalized\n"); |