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authorDave Airlie <airlied@redhat.com>2013-02-21 09:31:47 +1000
committerDave Airlie <airlied@redhat.com>2013-02-21 09:31:47 +1000
commitca18e1426bb2db987b67030256477c9571aebd09 (patch)
tree72e7cbe5f00f90390d00f5d3d4c9bdec79e48bbe /drivers/gpu/drm/drm_fb_cma_helper.c
parent74e1697478ffdee0e12e48db024a9b3677fd8cee (diff)
parent0d4bbaf9f3e5b9f52150ddc5a4ee8b0ab83a440b (diff)
downloadop-kernel-dev-ca18e1426bb2db987b67030256477c9571aebd09.zip
op-kernel-dev-ca18e1426bb2db987b67030256477c9571aebd09.tar.gz
Merge branch 'tilcdc-next' of git://people.freedesktop.org/~robclark/linux into drm-next
KMS driver for TI LCD controller * 'tilcdc-next' of git://people.freedesktop.org/~robclark/linux: drm/tilcdc: add support for LCD panels (v5) drm/tilcdc: add encoder slave (v2) drm/i2c: nxp-tda998x (v3) drm/tilcdc: add TI LCD Controller DRM driver (v4) drm/nouveau: use i2c encoder helper wrappers drm: i2c encoder helper wrappers drm/cma: add debugfs helpers drm: small fix in drm_send_vblank_event() drm: Don't set the plane->fb to NULL on successfull set_plane drm/cma-helper: fixup compilation Conflicts: drivers/gpu/drm/Kconfig drivers/gpu/drm/Makefile drivers/gpu/drm/drm_fb_cma_helper.c
Diffstat (limited to 'drivers/gpu/drm/drm_fb_cma_helper.c')
-rw-r--r--drivers/gpu/drm/drm_fb_cma_helper.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
index 1c8549d..0b5af7d 100644
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -180,6 +180,59 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
}
EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
+#ifdef CONFIG_DEBUG_FS
+/**
+ * drm_fb_cma_describe() - Helper to dump information about a single
+ * CMA framebuffer object
+ */
+void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m)
+{
+ struct drm_fb_cma *fb_cma = to_fb_cma(fb);
+ int i, n = drm_format_num_planes(fb->pixel_format);
+
+ seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
+ (char *)&fb->pixel_format);
+
+ for (i = 0; i < n; i++) {
+ seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
+ i, fb->offsets[i], fb->pitches[i]);
+ drm_gem_cma_describe(fb_cma->obj[i], m);
+ }
+}
+EXPORT_SYMBOL_GPL(drm_fb_cma_describe);
+
+/**
+ * drm_fb_cma_debugfs_show() - Helper to list CMA framebuffer objects
+ * in debugfs.
+ */
+int drm_fb_cma_debugfs_show(struct seq_file *m, void *arg)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct drm_framebuffer *fb;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->mode_config.mutex);
+ if (ret)
+ return ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret) {
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+ }
+
+ list_for_each_entry(fb, &dev->mode_config.fb_list, head)
+ drm_fb_cma_describe(fb, m);
+
+ mutex_unlock(&dev->struct_mutex);
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(drm_fb_cma_debugfs_show);
+#endif
+
static struct fb_ops drm_fbdev_cma_ops = {
.owner = THIS_MODULE,
.fb_fillrect = sys_fillrect,
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