diff options
| -rw-r--r-- | linux-core/drm_bo.c | 13 | ||||
| -rw-r--r-- | linux-core/drm_objects.h | 6 |
2 files changed, 16 insertions, 3 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 94a81559..93df229f 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -2098,22 +2098,29 @@ void drm_bo_evict_mm(struct drm_device *dev, int mem_type, int no_wait) struct list_head *lru; int ret; /* evict all buffers on the LRU - won't evict pinned buffers */ - + + drm_mm_dump(&man->manager); mutex_lock(&dev->struct_mutex); do { lru = &man->lru; - if (lru->next == lru) { +redo: + if (lru->next == &man->lru) { DRM_ERROR("lru empty\n"); break; } entry = list_entry(lru->next, struct drm_buffer_object, lru); + + if (entry->mem.flags & DRM_BO_FLAG_DISCARDABLE) { + lru = lru->next; + goto redo; + } + atomic_inc(&entry->usage); mutex_unlock(&dev->struct_mutex); mutex_lock(&entry->mutex); - DRM_ERROR("Evicting %p %d\n", entry, entry->num_pages); ret = drm_bo_evict(entry, mem_type, no_wait); mutex_unlock(&entry->mutex); diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h index acb10f96..0c8ffe92 100644 --- a/linux-core/drm_objects.h +++ b/linux-core/drm_objects.h @@ -117,6 +117,12 @@ struct drm_fence_arg { */ #define DRM_BO_FLAG_NO_MOVE (1ULL << 8) +/* + * Mask: if set the note the buffer contents are discardable + * Flags: if set the buffer contents are discardable on migration + */ +#define DRM_BO_FLAG_DISCARDABLE (1ULL << 9) + /* Mask: Make sure the buffer is in cached memory when mapped. In conjunction * with DRM_BO_FLAG_CACHED it also allows the buffer to be bound into the GART * with unsnooped PTEs instead of snooped, by using chipset-specific cache |