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drm/rockchip: add mm dump debugfs

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shell# cat /sys/kernel/debug/dri/0/mm_dump

0x0000000000000000-0x00000000000a6000: 679936: free
0x00000000000a6000-0x0000000000970000: 9216000: used
0x0000000000970000-0x000000000123a000: 9216000: used
0x000000000123a000-0x0000000001b04000: 9216000: used
0x0000000001b04000-0x00000000023ce000: 9216000: used
0x00000000023ce000-0x0000000002c98000: 9216000: used
0x0000000002c98000-0x0000000003562000: 9216000: used
0x0000000003562000-0x0000000003e2c000: 9216000: used
0x0000000003e2c000-0x0000000100000000: 4229775360: free
total: 4294967296, used 64512000 free 4230455296

Change-Id: I39cb5b12a63418c050b3bd890829f831f898db4e
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Mark Yao 2017-01-03 11:50:55 +08:00 committed by Tao Huang
parent 528096963f
commit cd5593d1ae
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
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@ -135,6 +135,23 @@ static void rockchip_iommu_cleanup(struct drm_device *drm_dev)
}
#ifdef CONFIG_DEBUG_FS
static int rockchip_drm_mm_dump(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
struct drm_minor *minor = node->minor;
struct drm_device *drm_dev = minor->dev;
struct rockchip_drm_private *priv = drm_dev->dev_private;
struct drm_printer p = drm_seq_file_printer(s);
if (!priv->domain)
return 0;
mutex_lock(&priv->mm_lock);
drm_mm_print(&priv->mm, &p);
mutex_unlock(&priv->mm_lock);
return 0;
}
static int rockchip_drm_summary_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
@ -156,6 +173,7 @@ static int rockchip_drm_summary_show(struct seq_file *s, void *data)
static struct drm_info_list rockchip_debugfs_files[] = {
{ "summary", rockchip_drm_summary_show, 0, NULL },
{ "mm_dump", rockchip_drm_mm_dump, 0, NULL },
};
static void rockchip_drm_debugfs_init(struct drm_minor *minor)