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author | Christian König <christian.koenig@amd.com> | 2021-02-05 15:58:56 +0100 |
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committer | Christian König <christian.koenig@amd.com> | 2021-05-03 12:50:41 +0200 |
commit | b072b9cd54f3dbd9597f2c0c2b8496a43c179806 (patch) | |
tree | 555ea9cfa47f221a2090e6ef90300944fd141594 /drivers/gpu/drm/ttm/ttm_sys_manager.c | |
parent | dc52e41d26610cb7b8e95c7d45aa7457b5dcc002 (diff) | |
download | linux-stable-b072b9cd54f3dbd9597f2c0c2b8496a43c179806.tar.gz linux-stable-b072b9cd54f3dbd9597f2c0c2b8496a43c179806.tar.bz2 linux-stable-b072b9cd54f3dbd9597f2c0c2b8496a43c179806.zip |
drm/ttm: add ttm_sys_manager v3
Add a separate manager for the system domain and make function tables
mandatory.
v2: debug is still optional
v3: return void during init
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430092508.60710-1-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_sys_manager.c')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_sys_manager.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_sys_manager.c b/drivers/gpu/drm/ttm/ttm_sys_manager.c new file mode 100644 index 000000000000..f754d2c965f1 --- /dev/null +++ b/drivers/gpu/drm/ttm/ttm_sys_manager.c @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ + +#include <drm/ttm/ttm_resource.h> +#include <drm/ttm/ttm_device.h> +#include <drm/ttm/ttm_placement.h> + +static int ttm_sys_man_alloc(struct ttm_resource_manager *man, + struct ttm_buffer_object *bo, + const struct ttm_place *place, + struct ttm_resource *mem) +{ + return 0; +} + +static void ttm_sys_man_free(struct ttm_resource_manager *man, + struct ttm_resource *mem) +{ +} + +static const struct ttm_resource_manager_func ttm_sys_manager_func = { + .alloc = ttm_sys_man_alloc, + .free = ttm_sys_man_free, +}; + +void ttm_sys_man_init(struct ttm_device *bdev) +{ + struct ttm_resource_manager *man = &bdev->sysman; + + /* + * Initialize the system memory buffer type. + * Other types need to be driver / IOCTL initialized. + */ + man->use_tt = true; + man->func = &ttm_sys_manager_func; + + ttm_resource_manager_init(man, 0); + ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man); + ttm_resource_manager_set_used(man, true); +} |