In
commit 3a359f0b21ab218c1bf7a6a1b638b6fd143d0b99 Author: Daniel Vetter daniel.vetter@ffwll.ch Date: Sat Apr 20 12:08:11 2013 +0200
drm/mm: fix dump table BUG
I've failed to fix both instances of the regression introduced in
commit 9e8944ab564f2e3dde90a518cd32048c58918608 Author: Chris Wilson chris@chris-wilson.co.uk Date: Thu Nov 15 11:32:17 2012 +0000
drm: Introduce an iterator over holes in the drm_mm range manager
Patch this up in the same way by extracting the hole debug logic into it's own function, since that'll also clarify the logic a bit.
Cc: Chris Wilson chris@chris-wilson.co.uk Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/drm_mm.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 07cf99c..f9d4873 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -716,36 +716,37 @@ void drm_mm_takedown(struct drm_mm * mm) } EXPORT_SYMBOL(drm_mm_takedown);
-void drm_mm_debug_table(struct drm_mm *mm, const char *prefix) +static unsigned long drm_mm_debug_hole(struct drm_mm_node *entry, + const char *prefix) { - struct drm_mm_node *entry; - unsigned long total_used = 0, total_free = 0, total = 0; unsigned long hole_start, hole_end, hole_size;
- hole_start = drm_mm_hole_node_start(&mm->head_node); - hole_end = drm_mm_hole_node_end(&mm->head_node); - hole_size = hole_end - hole_start; - if (hole_size) + if (entry->hole_follows) { + hole_start = drm_mm_hole_node_start(entry); + hole_end = drm_mm_hole_node_end(entry); + hole_size = hole_end - hole_start; printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: free\n", prefix, hole_start, hole_end, hole_size); - total_free += hole_size; + return hole_size; + } + + return 0; +} + +void drm_mm_debug_table(struct drm_mm *mm, const char *prefix) +{ + struct drm_mm_node *entry; + unsigned long total_used = 0, total_free = 0, total = 0; + + total_free += drm_mm_debug_hole(&mm->head_node, prefix);
drm_mm_for_each_node(entry, mm) { printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: used\n", prefix, entry->start, entry->start + entry->size, entry->size); total_used += entry->size; - - if (entry->hole_follows) { - hole_start = drm_mm_hole_node_start(entry); - hole_end = drm_mm_hole_node_end(entry); - hole_size = hole_end - hole_start; - printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8lu: free\n", - prefix, hole_start, hole_end, - hole_size); - total_free += hole_size; - } + total_free += drm_mm_debug_hole(entry, prefix); } total = total_free + total_used;