xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/ttm: use a static ttm_mem_global instance

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/cirrus/cirrus_drv.h
View File

@@ -136,7 +136,6 @@ struct cirrus_device {
int fb_mtrr;
struct {
struct drm_global_reference mem_global_ref;
struct ttm_bo_global_ref bo_global_ref;
struct ttm_bo_device bdev;
} ttm;

32
drivers/gpu/drm/cirrus/cirrus_ttm.c
View File

@@ -36,37 +36,11 @@ cirrus_bdev(struct ttm_bo_device *bd)
return container_of(bd, struct cirrus_device, ttm.bdev);
}
static int
cirrus_ttm_mem_global_init(struct drm_global_reference *ref)
{
return ttm_mem_global_init(ref->object);
}
static void
cirrus_ttm_mem_global_release(struct drm_global_reference *ref)
{
ttm_mem_global_release(ref->object);
}
static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
{
struct drm_global_reference *global_ref;
int r;
global_ref = &cirrus->ttm.mem_global_ref;
global_ref->global_type = DRM_GLOBAL_TTM_MEM;
global_ref->size = sizeof(struct ttm_mem_global);
global_ref->init = &cirrus_ttm_mem_global_init;
global_ref->release = &cirrus_ttm_mem_global_release;
r = drm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM memory accounting "
"subsystem.\n");
return r;
}
cirrus->ttm.bo_global_ref.mem_glob =
cirrus->ttm.mem_global_ref.object;
global_ref = &cirrus->ttm.bo_global_ref.ref;
global_ref->global_type = DRM_GLOBAL_TTM_BO;
global_ref->size = sizeof(struct ttm_bo_global);
@@ -75,7 +49,6 @@ static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
r = drm_global_item_ref(global_ref);
if (r != 0) {
DRM_ERROR("Failed setting up TTM BO subsystem.\n");
drm_global_item_unref(&cirrus->ttm.mem_global_ref);
return r;
}
return 0;
@@ -84,12 +57,11 @@ static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
static void
cirrus_ttm_global_release(struct cirrus_device *cirrus)
{
if (cirrus->ttm.mem_global_ref.release == NULL)
if (cirrus->ttm.bo_global_ref.ref.release == NULL)
return;
drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref);
drm_global_item_unref(&cirrus->ttm.mem_global_ref);
cirrus->ttm.mem_global_ref.release = NULL;
cirrus->ttm.bo_global_ref.ref.release = NULL;
}