drm/sti: add debugfs entries for CURSOR plane (f46f3beb) · Commits · 戴 / test

drivers/gpu/drm/sti/sti_cursor.c

+79 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,82 @@ static const uint32_t cursor_supported_formats[] = {

		#define to_sti_cursor(x) container_of(x, struct sti_cursor, plane)

		#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
		readl(cursor->regs + reg))

		static void cursor_dbg_vpo(struct seq_file *s, u32 val)
		{
		seq_printf(s, "\txdo:%4d\tydo:%4d", val & 0x0FFF, (val >> 16) & 0x0FFF);
		}

		static void cursor_dbg_size(struct seq_file *s, u32 val)
		{
		seq_printf(s, "\t%d x %d", val & 0x07FF, (val >> 16) & 0x07FF);
		}

		static void cursor_dbg_pml(struct seq_file *s,
		struct sti_cursor *cursor, u32 val)
		{
		if (cursor->pixmap.paddr == val)
		seq_printf(s, "\tVirt @: %p", cursor->pixmap.base);
		}

		static void cursor_dbg_cml(struct seq_file *s,
		struct sti_cursor *cursor, u32 val)
		{
		if (cursor->clut_paddr == val)
		seq_printf(s, "\tVirt @: %p", cursor->clut);
		}

		static int cursor_dbg_show(struct seq_file s, void data)
		{
		struct drm_info_node *node = s->private;
		struct sti_cursor cursor = (struct sti_cursor )node->info_ent->data;
		struct drm_device *dev = node->minor->dev;
		int ret;

		ret = mutex_lock_interruptible(&dev->struct_mutex);
		if (ret)
		return ret;

		seq_printf(s, "%s: (vaddr = 0x%p)",
		sti_plane_to_str(&cursor->plane), cursor->regs);

		DBGFS_DUMP(CUR_CTL);
		DBGFS_DUMP(CUR_VPO);
		cursor_dbg_vpo(s, readl(cursor->regs + CUR_VPO));
		DBGFS_DUMP(CUR_PML);
		cursor_dbg_pml(s, cursor, readl(cursor->regs + CUR_PML));
		DBGFS_DUMP(CUR_PMP);
		DBGFS_DUMP(CUR_SIZE);
		cursor_dbg_size(s, readl(cursor->regs + CUR_SIZE));
		DBGFS_DUMP(CUR_CML);
		cursor_dbg_cml(s, cursor, readl(cursor->regs + CUR_CML));
		DBGFS_DUMP(CUR_AWS);
		DBGFS_DUMP(CUR_AWE);
		seq_puts(s, "\n");

		mutex_unlock(&dev->struct_mutex);
		return 0;
		}

		static struct drm_info_list cursor_debugfs_files[] = {
		{ "cursor", cursor_dbg_show, 0, NULL },
		};

		static int cursor_debugfs_init(struct sti_cursor *cursor,
		struct drm_minor *minor)
		{
		unsigned int i;

		for (i = 0; i < ARRAY_SIZE(cursor_debugfs_files); i++)
		cursor_debugfs_files[i].data = cursor;

		return drm_debugfs_create_files(cursor_debugfs_files,
		ARRAY_SIZE(cursor_debugfs_files),
		minor->debugfs_root, minor);
		}

		static void sti_cursor_argb8888_to_clut8(struct sti_cursor cursor, u32 src)
		{
		u8 *dst = cursor->pixmap.base;
		@@ -306,6 +382,9 @@ struct drm_plane sti_cursor_create(struct drm_device drm_dev,

		sti_plane_init_property(&cursor->plane, DRM_PLANE_TYPE_CURSOR);

		if (cursor_debugfs_init(cursor, drm_dev->primary))
		DRM_ERROR("CURSOR debugfs setup failed\n");

		return &cursor->plane.drm_plane;

		err_plane:

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