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authorJerome Glisse <jglisse@redhat.com>2009-12-09 15:55:09 -0500
committerDave Airlie <airlied@redhat.com>2009-12-10 00:28:06 -0500
commit99d7e48e8cb867f303439ad40e995e203841bd94 (patch)
tree2bb3110aec2ed62a195a3ab8511f1aab99f15b86 /drivers/gpu/drm/drm_mm.c
parent550e2d9270e2f0a10c3b063899f70e4cca25fe72 (diff)
drm: Add memory manager debug function
drm_mm_debug_table will print the memory manager state in table allowing to give a snapshot of the manager at given point in time. Usefull for debugging. Signed-off-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_mm.c')
-rw-r--r--drivers/gpu/drm/drm_mm.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c
index a5c2773ccf27..d7d7eac3ddd2 100644
--- a/drivers/gpu/drm/drm_mm.c
+++ b/drivers/gpu/drm/drm_mm.c
@@ -469,6 +469,26 @@ void drm_mm_takedown(struct drm_mm * mm)
469} 469}
470EXPORT_SYMBOL(drm_mm_takedown); 470EXPORT_SYMBOL(drm_mm_takedown);
471 471
472void drm_mm_debug_table(struct drm_mm *mm, const char *prefix)
473{
474 struct drm_mm_node *entry;
475 int total_used = 0, total_free = 0, total = 0;
476
477 list_for_each_entry(entry, &mm->ml_entry, ml_entry) {
478 printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8ld: %s\n",
479 prefix, entry->start, entry->start + entry->size,
480 entry->size, entry->free ? "free" : "used");
481 total += entry->size;
482 if (entry->free)
483 total_free += entry->size;
484 else
485 total_used += entry->size;
486 }
487 printk(KERN_DEBUG "%s total: %d, used %d free %d\n", prefix, total,
488 total_used, total_free);
489}
490EXPORT_SYMBOL(drm_mm_debug_table);
491
472#if defined(CONFIG_DEBUG_FS) 492#if defined(CONFIG_DEBUG_FS)
473int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm) 493int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
474{ 494{