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drm/ttm: add ttm_sg_tt_init

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This allows drivers to only allocate dma addresses, but not a page
array.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-02-23 15:12:00 +01:00
committed by Alex Deucher
parent 81f5ec0255
commit 75a57669cb
2 changed files with 47 additions and 9 deletions
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2
include/drm/ttm/ttm_tt.h
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@@ -163,6 +163,8 @@ int ttm_tt_init(struct ttm_tt *ttm, struct ttm_bo_device *bdev,
unsigned long size, uint32_t page_flags);
int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
unsigned long size, uint32_t page_flags);
int ttm_sg_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
unsigned long size, uint32_t page_flags);
/**
* ttm_tt_fini