diff options
| author | Roger He <Hongbo.He@amd.com> | 2017-12-21 17:42:53 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-28 09:48:20 -0500 |
| commit | dc947770cf3400dd07ed2e2b7b9acb4f96d5137f (patch) | |
| tree | 1b9a022f5a9719be858af07e69d747468844de06 /drivers/gpu/drm/ttm/ttm_bo.c | |
| parent | d5769ba315d8ffcf6eeb90b6d7c99d3143547ddb (diff) | |
| download | lwn-dc947770cf3400dd07ed2e2b7b9acb4f96d5137f.tar.gz lwn-dc947770cf3400dd07ed2e2b7b9acb4f96d5137f.zip | |
drm/ttm: enable swapout for reserved BOs during allocation
if the bo shares same reservation object then not lock it again
at swapout time to make it possible to swap out.
v2: refine the commmit message
Reviewed-by: Thomas Hellström <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chuming Zhou <david1.zhou@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index ac2ab20ba9b2..2eb71ffe95a6 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1699,18 +1699,20 @@ EXPORT_SYMBOL(ttm_bo_synccpu_write_release); * A buffer object shrink method that tries to swap out the first * buffer object on the bo_global::swap_lru list. */ -int ttm_bo_swapout(struct ttm_bo_global *glob) +int ttm_bo_swapout(struct ttm_bo_global *glob, struct ttm_operation_ctx *ctx) { struct ttm_buffer_object *bo; int ret = -EBUSY; + bool locked; unsigned i; spin_lock(&glob->lru_lock); for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) { list_for_each_entry(bo, &glob->swap_lru[i], swap) { - ret = reservation_object_trylock(bo->resv) ? 0 : -EBUSY; - if (!ret) + if (ttm_bo_evict_swapout_allowable(bo, ctx, &locked)) { + ret = 0; break; + } } if (!ret) break; @@ -1786,7 +1788,12 @@ EXPORT_SYMBOL(ttm_bo_swapout); void ttm_bo_swapout_all(struct ttm_bo_device *bdev) { - while (ttm_bo_swapout(bdev->glob) == 0) + struct ttm_operation_ctx ctx = { + .interruptible = false, + .no_wait_gpu = false + }; + + while (ttm_bo_swapout(bdev->glob, &ctx) == 0) ; } EXPORT_SYMBOL(ttm_bo_swapout_all); |