diff options
| author | Shiwu Zhang <shiwu.zhang@amd.com> | 2021-04-22 11:37:49 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2021-04-23 15:08:04 +0300 |
| commit | 13ea9aa1e7d891e950230e82f1dd2c84e5debcff (patch) | |
| tree | 52133d57efe5667f5a1c7d24e9520dab5e738391 /drivers | |
| parent | ae053fa234f42b4abc582372af7410ad0e3e1dad (diff) | |
| download | linux-13ea9aa1e7d891e950230e82f1dd2c84e5debcff.tar.xz | |
drm/ttm: fix error handling if no BO can be swapped out v4
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.
v4 (chk): fix code moved to VMWGFX as well
Signed-off-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210422115757.3946-1-christian.koenig@amd.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_device.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_tt.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/ttm_memory.c | 2 |
3 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 528cc5aea99a..b169e9a4f5d4 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 = 0; 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; } diff --git a/drivers/gpu/drm/vmwgfx/ttm_memory.c b/drivers/gpu/drm/vmwgfx/ttm_memory.c index 104b95a8c7a2..aeb0a22a2c34 100644 --- a/drivers/gpu/drm/vmwgfx/ttm_memory.c +++ b/drivers/gpu/drm/vmwgfx/ttm_memory.c @@ -280,7 +280,7 @@ static void ttm_shrink(struct ttm_mem_global *glob, bool from_wq, spin_unlock(&glob->lock); ret = ttm_global_swapout(ctx, GFP_KERNEL); spin_lock(&glob->lock); - if (unlikely(ret < 0)) + if (unlikely(ret <= 0)) break; } |