drm/ttm: Helper function to get TTM mem limit

Add a helper function to get TTM memory limit. This is
needed by KFD to set its own internal memory limits.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mukul Joshi 2023-04-25 14:11:56 -04:00 коммит произвёл Alex Deucher
Родитель 3c4f6507ab
Коммит 1d74159021
2 изменённых файлов: 7 добавлений и 1 удалений

Просмотреть файл

@ -450,3 +450,9 @@ ttm_kmap_iter_tt_init(struct ttm_kmap_iter_tt *iter_tt,
return &iter_tt->base; return &iter_tt->base;
} }
EXPORT_SYMBOL(ttm_kmap_iter_tt_init); EXPORT_SYMBOL(ttm_kmap_iter_tt_init);
unsigned long ttm_tt_pages_limit(void)
{
return ttm_pages_limit;
}
EXPORT_SYMBOL(ttm_tt_pages_limit);

Просмотреть файл

@ -222,7 +222,7 @@ void ttm_tt_mgr_init(unsigned long num_pages, unsigned long num_dma32_pages);
struct ttm_kmap_iter *ttm_kmap_iter_tt_init(struct ttm_kmap_iter_tt *iter_tt, struct ttm_kmap_iter *ttm_kmap_iter_tt_init(struct ttm_kmap_iter_tt *iter_tt,
struct ttm_tt *tt); struct ttm_tt *tt);
unsigned long ttm_tt_pages_limit(void);
#if IS_ENABLED(CONFIG_AGP) #if IS_ENABLED(CONFIG_AGP)
#include <linux/agp_backend.h> #include <linux/agp_backend.h>