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Commit 28c23373 authored by Thierry Reding's avatar Thierry Reding
Browse files

drm/tegra: Provide debugfs file for the IOVA space 



The Tegra DRM driver uses a single IO virtual address space for buffer
mappings. Provide a table of the address space usage in debugfs.

Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent d2982748

drivers/gpu/drm/tegra/drm.c

+10 −0
Original line number Diff line number Diff line
@@ -879,8 +879,18 @@ static int tegra_debugfs_framebuffers(struct seq_file *s, void *data) 
	return 0;

}



static int tegra_debugfs_iova(struct seq_file *s, void *data)

{

	struct drm_info_node *node = (struct drm_info_node *)s->private;

	struct drm_device *drm = node->minor->dev;

	struct tegra_drm *tegra = drm->dev_private;



	return drm_mm_dump_table(s, &tegra->mm);

}



static struct drm_info_list tegra_debugfs_list[] = {

	{ "framebuffers", tegra_debugfs_framebuffers, 0 },

	{ "iova", tegra_debugfs_iova, 0 },

};



static int tegra_debugfs_init(struct drm_minor *minor)