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Import the drm_mm_debug_table() function.

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Sponsored by:	The FreeBSD Foundation
MFC after:	1 month
This commit is contained in:
Konstantin Belousov 2013-03-05 09:07:58 +00:00
parent 214bb83805
commit 8f3993c1f1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=247833
2 changed files with 39 additions and 0 deletions
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37
sys/dev/drm2/drm_mm.c
View File

@ -561,3 +561,40 @@ void drm_mm_takedown(struct drm_mm * mm)
KASSERT(mm->num_unused == 0, ("num_unused != 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;
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)
printf("%s 0x%08lx-0x%08lx: %8lu: free\n",
prefix, hole_start, hole_end,
hole_size);
total_free += hole_size;
drm_mm_for_each_node(entry, mm) {
printf("%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;
printf("%s 0x%08lx-0x%08lx: %8lu: free\n",
prefix, hole_start, hole_end,
hole_size);
total_free += hole_size;
}
}
total = total_free + total_used;
printf("%s total: %lu, used %lu free %lu\n", prefix, total,
total_used, total_free);
}

2
sys/dev/drm2/drm_mm.h
View File

@ -182,4 +182,6 @@ void drm_mm_init_scan_with_range(struct drm_mm *mm, unsigned long size,
int drm_mm_scan_add_block(struct drm_mm_node *node);
int drm_mm_scan_remove_block(struct drm_mm_node *node);
void drm_mm_debug_table(struct drm_mm *mm, const char *prefix);
#endif