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drm/ttm: add optional bind/unbind via driver.

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I want to remove the backend funcs

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200907204630.1406528-3-airlied@gmail.com
This commit is contained in:
Dave Airlie
2020-09-08 06:46:19 +10:00
parent ecfe6953fa
commit 86008a7553
2 changed files with 48 additions and 3 deletions
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15
drivers/gpu/drm/ttm/ttm_tt.c
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@@ -222,7 +222,10 @@ void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
fput(ttm->swap_storage);
ttm->swap_storage = NULL;
ttm->func->destroy(bdev, ttm);
if (bdev->driver->ttm_tt_destroy)
bdev->driver->ttm_tt_destroy(bdev, ttm);
else
ttm->func->destroy(bdev, ttm);
}
static void ttm_tt_init_fields(struct ttm_tt *ttm,
@@ -310,7 +313,10 @@ EXPORT_SYMBOL(ttm_dma_tt_fini);
void ttm_tt_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
{
if (ttm->state == tt_bound) {
ttm->func->unbind(bdev, ttm);
if (bdev->driver->ttm_tt_unbind)
bdev->driver->ttm_tt_unbind(bdev, ttm);
else
ttm->func->unbind(bdev, ttm);
ttm->state = tt_unbound;
}
}
@@ -331,7 +337,10 @@ int ttm_tt_bind(struct ttm_bo_device *bdev,
if (ret)
return ret;
ret = ttm->func->bind(bdev, ttm, bo_mem);
if (bdev->driver->ttm_tt_bind)
ret = bdev->driver->ttm_tt_bind(bdev, ttm, bo_mem);
else
ret = ttm->func->bind(bdev, ttm, bo_mem);
if (unlikely(ret != 0))
return ret;