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drm/ttm: add ttm_tt_populate wrapper 

Stop calling the driver callback directly.

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 2018-02-01 14:39:29 +01:00 committed by Alex Deucher
parent cc32ad8f55
commit 25893a14c9
4 changed files with 24 additions and 9 deletions
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12
drivers/gpu/drm/ttm/ttm_bo_util.c
View File

@ -375,8 +375,8 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
/*
* TTM might be null for moves within the same region.
*/
if (ttm && ttm->state == tt_unpopulated) {
ret = ttm->bdev->driver->ttm_tt_populate(ttm, ctx);
if (ttm) {
ret = ttm_tt_populate(ttm, ctx);
if (ret)
goto out1;
}
@ -557,11 +557,9 @@ static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
BUG_ON(!ttm);
if (ttm->state == tt_unpopulated) {
ret = ttm->bdev->driver->ttm_tt_populate(ttm, &ctx);
if (ret)
return ret;
}
ret = ttm_tt_populate(ttm, &ctx);
if (ret)
return ret;
if (num_pages == 1 && (mem->placement & TTM_PL_FLAG_CACHED)) {
/*

2
drivers/gpu/drm/ttm/ttm_bo_vm.c
View File

@ -234,7 +234,7 @@ static int ttm_bo_vm_fault(struct vm_fault *vmf)
cvma.vm_page_prot);
/* Allocate all page at once, most common usage */
if (ttm->bdev->driver->ttm_tt_populate(ttm, &ctx)) {
if (ttm_tt_populate(ttm, &ctx)) {
ret = VM_FAULT_OOM;
goto out_io_unlock;
}

10
drivers/gpu/drm/ttm/ttm_tt.c
View File

@ -276,7 +276,7 @@ int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem,
if (ttm->state == tt_bound)
return 0;
ret = ttm->bdev->driver->ttm_tt_populate(ttm, ctx);
ret = ttm_tt_populate(ttm, ctx);
if (ret)
return ret;
@ -392,6 +392,14 @@ out_err:
return ret;
}
int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
{
if (ttm->state != tt_unpopulated)
return 0;
return ttm->bdev->driver->ttm_tt_populate(ttm, ctx);
}
static void ttm_tt_clear_mapping(struct ttm_tt *ttm)
{
pgoff_t i;

9
include/drm/ttm/ttm_bo_driver.h
View File

@ -700,6 +700,15 @@ int ttm_tt_swapin(struct ttm_tt *ttm);
int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement);
int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage);
/**
* ttm_tt_populate - allocate pages for a ttm
*
* @ttm: Pointer to the ttm_tt structure
*
* Calls the driver method to allocate pages for a ttm
*/
int ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
/**
* ttm_tt_unpopulate - free pages from a ttm
*