diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_sa.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 701094b05f47..8a6b1b31bb5e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -381,6 +381,7 @@ struct radeon_bo_list { * alignment). */ struct radeon_sa_manager { + spinlock_t lock; struct radeon_bo *bo; struct list_head sa_bo; unsigned size; diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c index 8fbfe69b7bcb..aed0a8c68c84 100644 --- a/drivers/gpu/drm/radeon/radeon_sa.c +++ b/drivers/gpu/drm/radeon/radeon_sa.c @@ -37,6 +37,7 @@ int radeon_sa_bo_manager_init(struct radeon_device *rdev, { int r; + spin_lock_init(&sa_manager->lock); sa_manager->bo = NULL; sa_manager->size = size; sa_manager->domain = domain; @@ -139,6 +140,7 @@ int radeon_sa_bo_new(struct radeon_device *rdev, BUG_ON(align > RADEON_GPU_PAGE_SIZE); BUG_ON(size > sa_manager->size); + spin_lock(&sa_manager->lock); /* no one ? */ head = sa_manager->sa_bo.prev; @@ -172,6 +174,7 @@ int radeon_sa_bo_new(struct radeon_device *rdev, offset += wasted; if ((sa_manager->size - offset) < size) { /* failed to find somethings big enough */ + spin_unlock(&sa_manager->lock); return -ENOMEM; } @@ -180,10 +183,13 @@ out: sa_bo->offset = offset; sa_bo->size = size; list_add(&sa_bo->list, head); + spin_unlock(&sa_manager->lock); return 0; } void radeon_sa_bo_free(struct radeon_device *rdev, struct radeon_sa_bo *sa_bo) { + spin_lock(&sa_bo->manager->lock); list_del_init(&sa_bo->list); + spin_unlock(&sa_bo->manager->lock); } |