From 45d58b40292b16ab847497dcd299e315a2ad7956 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= Date: Tue, 7 Nov 2017 20:13:40 +0100 Subject: drm/framebuffer: Add framebuffer debugfs file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add debugfs file that dumps info about the framebuffers and its planes. Also dump info about any connected gem object(s). Reviewed-by: Daniel Vetter Signed-off-by: Noralf Trønnes Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20171107191348.17555-5-noralf@tronnes.org --- drivers/gpu/drm/drm_framebuffer.c | 59 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) (limited to 'drivers/gpu/drm/drm_framebuffer.c') diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index 2305e7800b45..0153000373ae 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -25,7 +25,9 @@ #include #include #include +#include +#include "drm_internal.h" #include "drm_crtc_internal.h" /** @@ -967,3 +969,60 @@ int drm_framebuffer_plane_height(int height, return fb_plane_height(height, fb->format, plane); } EXPORT_SYMBOL(drm_framebuffer_plane_height); + +void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, + const struct drm_framebuffer *fb) +{ + struct drm_format_name_buf format_name; + unsigned int i; + + drm_printf_indent(p, indent, "refcount=%u\n", + drm_framebuffer_read_refcount(fb)); + drm_printf_indent(p, indent, "format=%s\n", + drm_get_format_name(fb->format->format, &format_name)); + drm_printf_indent(p, indent, "modifier=0x%llx\n", fb->modifier); + drm_printf_indent(p, indent, "size=%ux%u\n", fb->width, fb->height); + drm_printf_indent(p, indent, "layers:\n"); + + for (i = 0; i < fb->format->num_planes; i++) { + drm_printf_indent(p, indent + 1, "size[%u]=%dx%d\n", i, + drm_framebuffer_plane_width(fb->width, fb, i), + drm_framebuffer_plane_height(fb->height, fb, i)); + drm_printf_indent(p, indent + 1, "pitch[%u]=%u\n", i, fb->pitches[i]); + drm_printf_indent(p, indent + 1, "offset[%u]=%u\n", i, fb->offsets[i]); + drm_printf_indent(p, indent + 1, "obj[%u]:%s\n", i, + fb->obj[i] ? "" : "(null)"); + if (fb->obj[i]) + drm_gem_print_info(p, indent + 2, fb->obj[i]); + } +} + +#ifdef CONFIG_DEBUG_FS +static int drm_framebuffer_info(struct seq_file *m, void *data) +{ + struct drm_info_node *node = m->private; + struct drm_device *dev = node->minor->dev; + struct drm_printer p = drm_seq_file_printer(m); + struct drm_framebuffer *fb; + + mutex_lock(&dev->mode_config.fb_lock); + drm_for_each_fb(fb, dev) { + drm_printf(&p, "framebuffer[%u]:\n", fb->base.id); + drm_framebuffer_print_info(&p, 1, fb); + } + mutex_unlock(&dev->mode_config.fb_lock); + + return 0; +} + +static const struct drm_info_list drm_framebuffer_debugfs_list[] = { + { "framebuffer", drm_framebuffer_info, 0 }, +}; + +int drm_framebuffer_debugfs_init(struct drm_minor *minor) +{ + return drm_debugfs_create_files(drm_framebuffer_debugfs_list, + ARRAY_SIZE(drm_framebuffer_debugfs_list), + minor->debugfs_root, minor); +} +#endif -- cgit v1.2.3