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drm/ttm: use a static ttm_mem_global instance

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As the name says we only need one global instance of ttm_mem_global.

Drop all the driver initialization and just use a single exported
instance which is initialized during BO global initialization.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-10-19 13:49:05 +02:00
committed by Alex Deucher
parent 7e07834c12
commit 27eb1fa913
29 changed files with 32 additions and 380 deletions
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44
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@@ -65,33 +65,6 @@ static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev);
* Global memory.
*/
/**
* amdgpu_ttm_mem_global_init - Initialize and acquire reference to
* memory object
*
* @ref: Object for initialization.
*
* This is called by drm_global_item_ref() when an object is being
* initialized.
*/
static int amdgpu_ttm_mem_global_init(struct drm_global_reference *ref)
{
return ttm_mem_global_init(ref->object);
}
/**
* amdgpu_ttm_mem_global_release - Drop reference to a memory object
*
* @ref: Object being removed
*
* This is called by drm_global_item_unref() when an object is being
* released.
*/
static void amdgpu_ttm_mem_global_release(struct drm_global_reference *ref)
{
ttm_mem_global_release(ref->object);
}
/**
* amdgpu_ttm_global_init - Initialize global TTM memory reference structures.
*
@@ -108,20 +81,6 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
/* ensure reference is false in case init fails */
adev->mman.mem_global_referenced = false;
global_ref = &adev->mman.mem_global_ref;
global_ref->global_type = DRM_GLOBAL_TTM_MEM;
global_ref->size = sizeof(struct ttm_mem_global);
global_ref->init = &amdgpu_ttm_mem_global_init;
global_ref->release = &amdgpu_ttm_mem_global_release;
r = drm_global_item_ref(global_ref);
if (r) {
DRM_ERROR("Failed setting up TTM memory accounting "
"subsystem.\n");
goto error_mem;
}
adev->mman.bo_global_ref.mem_glob =
adev->mman.mem_global_ref.object;
global_ref = &adev->mman.bo_global_ref.ref;
global_ref->global_type = DRM_GLOBAL_TTM_BO;
global_ref->size = sizeof(struct ttm_bo_global);
@@ -140,8 +99,6 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
return 0;
error_bo:
drm_global_item_unref(&adev->mman.mem_global_ref);
error_mem:
return r;
}
@@ -150,7 +107,6 @@ static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)
if (adev->mman.mem_global_referenced) {
mutex_destroy(&adev->mman.gtt_window_lock);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
drm_global_item_unref(&adev->mman.mem_global_ref);
adev->mman.mem_global_referenced = false;
}
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
View File

@@ -40,7 +40,6 @@
struct amdgpu_mman {
struct ttm_bo_global_ref bo_global_ref;
struct drm_global_reference mem_global_ref;
struct ttm_bo_device bdev;
bool mem_global_referenced;
bool initialized;