From 2a6dad31d84252d505f392f91dffd90689bb947c Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 18 Sep 2008 10:05:59 +1000 Subject: radeon: add initial suspend/resume support plus a bunch of fixes --- linux-core/drm_bo.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 3 deletions(-) (limited to 'linux-core/drm_bo.c') diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index e3ee497a..fa3e055d 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -511,6 +511,7 @@ static void drm_bo_delayed_delete(struct drm_device *dev, int remove_all) entry = list_entry(list, struct drm_buffer_object, ddestroy); nentry = NULL; + DRM_DEBUG("bo is %p, %d\n", entry, entry->num_pages); if (next != &bm->ddestroy) { nentry = list_entry(next, struct drm_buffer_object, ddestroy); @@ -1330,14 +1331,15 @@ static int drm_bo_prepare_for_validate(struct drm_buffer_object *bo, int ret; - DRM_DEBUG("Proposed flags 0x%016llx, Old flags 0x%016llx\n", - (unsigned long long) bo->mem.proposed_flags, - (unsigned long long) bo->mem.flags); ret = drm_bo_modify_proposed_flags (bo, flags, mask); if (ret) return ret; + DRM_DEBUG("Proposed flags 0x%016llx, Old flags 0x%016llx\n", + (unsigned long long) bo->mem.proposed_flags, + (unsigned long long) bo->mem.flags); + ret = drm_bo_wait_unmapped(bo, no_wait); if (ret) return ret; @@ -2084,3 +2086,48 @@ static int drm_bo_setup_vm_locked(struct drm_buffer_object *bo) return 0; } + +/* used to EVICT VRAM lru at suspend time */ +void drm_bo_evict_mm(struct drm_device *dev, int mem_type, int no_wait) +{ + struct drm_buffer_manager *bm = &dev->bm; + struct drm_mem_type_manager *man = &bm->man[mem_type]; + struct drm_buffer_object *entry; + /* we need to migrate all objects in VRAM */ + struct list_head *lru; + int ret; + /* evict all buffers on the LRU - won't evict pinned buffers */ + + mutex_lock(&dev->struct_mutex); + do { + lru = &man->lru; + + if (lru->next == lru) { + DRM_ERROR("lru empty\n"); + break; + } + + entry = list_entry(lru->next, struct drm_buffer_object, lru); + 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); + + if (ret) + DRM_ERROR("Evict failed for BO\n"); + + mutex_lock(&entry->mutex); + (void)drm_bo_expire_fence(entry, 0); + mutex_unlock(&entry->mutex); + drm_bo_usage_deref_unlocked(&entry); + + mutex_lock(&dev->struct_mutex); + } while(0); + + mutex_unlock(&dev->struct_mutex); + +} +EXPORT_SYMBOL(drm_bo_evict_mm); -- cgit v1.2.3