diff options
| author | Jerome Glisse <jglisse@redhat.com> | 2009-12-09 21:55:09 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-10 06:28:06 +0100 |
| commit | 99d7e48e8cb867f303439ad40e995e203841bd94 (patch) | |
| tree | 2bb3110aec2ed62a195a3ab8511f1aab99f15b86 /drivers/gpu | |
| parent | drm/radeon/kms: restore surface registers on resume. (diff) | |
| download | linux-99d7e48e8cb867f303439ad40e995e203841bd94.tar.xz linux-99d7e48e8cb867f303439ad40e995e203841bd94.zip | |
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')
| -rw-r--r-- | drivers/gpu/drm/drm_mm.c | 20 |
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) } EXPORT_SYMBOL(drm_mm_takedown); +void drm_mm_debug_table(struct drm_mm *mm, const char *prefix) +{ + struct drm_mm_node *entry; + int total_used = 0, total_free = 0, total = 0; + + list_for_each_entry(entry, &mm->ml_entry, ml_entry) { + printk(KERN_DEBUG "%s 0x%08lx-0x%08lx: %8ld: %s\n", + prefix, entry->start, entry->start + entry->size, + entry->size, entry->free ? "free" : "used"); + total += entry->size; + if (entry->free) + total_free += entry->size; + else + total_used += entry->size; + } + printk(KERN_DEBUG "%s total: %d, used %d free %d\n", prefix, total, + total_used, total_free); +} +EXPORT_SYMBOL(drm_mm_debug_table); + #if defined(CONFIG_DEBUG_FS) int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm) { |