Signed-off-by: Vincent Abriou vincent.abriou@st.com --- drivers/gpu/drm/sti/sti_cursor.c | 79 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+)
diff --git a/drivers/gpu/drm/sti/sti_cursor.c b/drivers/gpu/drm/sti/sti_cursor.c index a4c67ab..9eac1b9 100644 --- a/drivers/gpu/drm/sti/sti_cursor.c +++ b/drivers/gpu/drm/sti/sti_cursor.c @@ -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: