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drm/ttm: Add interface to export kernel_zone max memory size in ttm

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Signed-off-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ken Wang 2016-07-27 19:12:15 +08:00 committed by Alex Deucher
parent 8e9fc800ec
commit ecf6a63709
2 changed files with 7 additions and 0 deletions
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6
drivers/gpu/drm/ttm/ttm_memory.c
View file

@ -600,3 +600,9 @@ size_t ttm_round_pot(size_t size)
return 0;
}
EXPORT_SYMBOL(ttm_round_pot);
uint64_t ttm_get_kernel_zone_memory_size(struct ttm_mem_global *glob)
{
return glob->zone_kernel->max_mem;
}
EXPORT_SYMBOL(ttm_get_kernel_zone_memory_size);

1
include/drm/ttm/ttm_memory.h
View file

@ -155,4 +155,5 @@ extern int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
extern void ttm_mem_global_free_page(struct ttm_mem_global *glob,
struct page *page);
extern size_t ttm_round_pot(size_t size);
extern uint64_t ttm_get_kernel_zone_memory_size(struct ttm_mem_global *glob);
#endif