diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-12-22 08:36:06 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-27 12:29:41 +0100 |
| commit | b3ee963fe41d0034cf8b6aff1f0cc9c91bf8d478 (patch) | |
| tree | a83aa9ad241ffe2af888f57535a56b70850b5999 /drivers/gpu/drm/drm_mm.c | |
| parent | 2bc98c86517b08304b5008f427b751c08659b100 (diff) | |
drm: Compile time enabling for asserts in drm_mm
Use CONFIG_DRM_DEBUG_MM to conditionally enable the internal and
validation checking using BUG_ON. Ideally these paths should all be
exercised by CI selftests (with the asserts enabled).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-4-chris@chris-wilson.co.uk
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-4-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/drm_mm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_mm.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 4257c86cc305..9756542abe4c 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -237,7 +237,7 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, u64 adj_start = hole_start; u64 adj_end = hole_end; - BUG_ON(node->allocated); + DRM_MM_BUG_ON(node->allocated); if (mm->color_adjust) mm->color_adjust(hole_node, color, &adj_start, &adj_end); @@ -258,8 +258,8 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, } } - BUG_ON(adj_start < hole_start); - BUG_ON(adj_end > hole_end); + DRM_MM_BUG_ON(adj_start < hole_start); + DRM_MM_BUG_ON(adj_end > hole_end); if (adj_start == hole_start) { hole_node->hole_follows = 0; @@ -276,7 +276,7 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, drm_mm_interval_tree_add_node(hole_node, node); - BUG_ON(node->start + node->size > adj_end); + DRM_MM_BUG_ON(node->start + node->size > adj_end); node->hole_follows = 0; if (__drm_mm_hole_node_start(node) < hole_end) { @@ -409,7 +409,7 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node, u64 adj_start = hole_start; u64 adj_end = hole_end; - BUG_ON(!hole_node->hole_follows || node->allocated); + DRM_MM_BUG_ON(!hole_node->hole_follows || node->allocated); if (adj_start < start) adj_start = start; @@ -450,10 +450,10 @@ static void drm_mm_insert_helper_range(struct drm_mm_node *hole_node, drm_mm_interval_tree_add_node(hole_node, node); - BUG_ON(node->start < start); - BUG_ON(node->start < adj_start); - BUG_ON(node->start + node->size > adj_end); - BUG_ON(node->start + node->size > end); + DRM_MM_BUG_ON(node->start < start); + DRM_MM_BUG_ON(node->start < adj_start); + DRM_MM_BUG_ON(node->start + node->size > adj_end); + DRM_MM_BUG_ON(node->start + node->size > end); node->hole_follows = 0; if (__drm_mm_hole_node_start(node) < hole_end) { @@ -519,22 +519,21 @@ void drm_mm_remove_node(struct drm_mm_node *node) struct drm_mm *mm = node->mm; struct drm_mm_node *prev_node; - if (WARN_ON(!node->allocated)) - return; - - BUG_ON(node->scanned_block || node->scanned_prev_free - || node->scanned_next_free); + DRM_MM_BUG_ON(!node->allocated); + DRM_MM_BUG_ON(node->scanned_block || + node->scanned_prev_free || + node->scanned_next_free); prev_node = list_entry(node->node_list.prev, struct drm_mm_node, node_list); if (node->hole_follows) { - BUG_ON(__drm_mm_hole_node_start(node) == - __drm_mm_hole_node_end(node)); + DRM_MM_BUG_ON(__drm_mm_hole_node_start(node) == + __drm_mm_hole_node_end(node)); list_del(&node->hole_stack); } else - BUG_ON(__drm_mm_hole_node_start(node) != - __drm_mm_hole_node_end(node)); + DRM_MM_BUG_ON(__drm_mm_hole_node_start(node) != + __drm_mm_hole_node_end(node)); if (!prev_node->hole_follows) { @@ -578,7 +577,7 @@ static struct drm_mm_node *drm_mm_search_free_generic(const struct drm_mm *mm, u64 adj_end; u64 best_size; - BUG_ON(mm->scanned_blocks); + DRM_MM_BUG_ON(mm->scanned_blocks); best = NULL; best_size = ~0UL; @@ -622,7 +621,7 @@ static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_ u64 adj_end; u64 best_size; - BUG_ON(mm->scanned_blocks); + DRM_MM_BUG_ON(mm->scanned_blocks); best = NULL; best_size = ~0UL; @@ -668,6 +667,8 @@ static struct drm_mm_node *drm_mm_search_free_in_range_generic(const struct drm_ */ void drm_mm_replace_node(struct drm_mm_node *old, struct drm_mm_node *new) { + DRM_MM_BUG_ON(!old->allocated); + list_replace(&old->node_list, &new->node_list); list_replace(&old->hole_stack, &new->hole_stack); rb_replace_node(&old->rb, &new->rb, &old->mm->interval_tree); @@ -798,7 +799,7 @@ bool drm_mm_scan_add_block(struct drm_mm_node *node) mm->scanned_blocks++; - BUG_ON(node->scanned_block); + DRM_MM_BUG_ON(node->scanned_block); node->scanned_block = 1; prev_node = list_entry(node->node_list.prev, struct drm_mm_node, @@ -859,7 +860,7 @@ bool drm_mm_scan_remove_block(struct drm_mm_node *node) mm->scanned_blocks--; - BUG_ON(!node->scanned_block); + DRM_MM_BUG_ON(!node->scanned_block); node->scanned_block = 0; prev_node = list_entry(node->node_list.prev, struct drm_mm_node, |