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drm/amdgpu: initialize ttm for doorbells

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This patch initialzes the ttm resource manager for doorbells.

V2: Do not round up doorbell size (Alex)

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shashank Sharma 2023-07-14 15:15:01 +02:00 committed by Alex Deucher
parent dc3499c71d
commit 792b84fb90
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -1938,6 +1938,13 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
DRM_INFO("amdgpu: %uM of GTT memory ready.\n",
(unsigned int)(gtt_size / (1024 * 1024)));
/* Initiailize doorbell pool on PCI BAR */
r = amdgpu_ttm_init_on_chip(adev, AMDGPU_PL_DOORBELL, adev->doorbell.size / PAGE_SIZE);
if (r) {
DRM_ERROR("Failed initializing doorbell heap.\n");
return r;
}
/* Initialize preemptible memory pool */
r = amdgpu_preempt_mgr_init(adev);
if (r) {