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drm/sti: add debugfs entries for CURSOR plane 

Signed-off-by: Vincent Abriou <vincent.abriou@st.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
This commit is contained in:
Vincent Abriou 2016-02-04 16:35:45 +01:00
parent 6c84578c2c
commit f46f3bebee
1 changed files with 79 additions and 0 deletions
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79
drivers/gpu/drm/sti/sti_cursor.c
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@ -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: