In case that all pre-allocated BOs are busy, just continue to populate
BOs since likely half of system memory in total is still free.
Signed-off-by: Shiwu Zhang <shiwu.zhang@xxxxxxx>
---
drivers/gpu/drm/ttm/ttm_device.c | 2 +-
drivers/gpu/drm/ttm/ttm_tt.c | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
index 1f2024164d72..a48fe4dccd61 100644
--- a/drivers/gpu/drm/ttm/ttm_device.c
+++ b/drivers/gpu/drm/ttm/ttm_device.c
@@ -112,7 +112,7 @@ int ttm_global_swapout(struct ttm_operation_ctx *ctx, gfp_t gfp_flags)
{
struct ttm_global *glob = &ttm_glob;
struct ttm_device *bdev;
- int ret = -EBUSY;
+ int ret;
mutex_lock(&ttm_global_mutex);
list_for_each_entry(bdev, &glob->device_list, device_list) {
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 48c407cff112..539e0232cb3b 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -329,6 +329,8 @@ int ttm_tt_populate(struct ttm_device *bdev,
ttm_dma32_pages_limit) {
ret = ttm_global_swapout(ctx, GFP_KERNEL);
+ if (ret == 0)
+ break;
if (ret < 0)
goto error;
}
--
2.17.1
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