2 files changed, 72 insertions, 6 deletions

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index b9631e3a1ea..89050684fe0 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -51,7 +51,22 @@ struct idr drm_minors_idr;
 struct class *drm_class;
 struct proc_dir_entry *drm_proc_root;
 struct dentry *drm_debugfs_root;
-
+void drm_ut_debug_printk(unsigned int request_level,
+                         const char *prefix,
+                         const char *function_name,
+                         const char *format, ...)
+{
+        va_list args;
+
+        if (drm_debug & request_level) {
+                if (function_name)
+                        printk(KERN_DEBUG "[%s:%s], ", prefix, function_name);
+                va_start(args, format);
+                vprintk(format, args);
+                va_end(args);
+        }
+}
+EXPORT_SYMBOL(drm_ut_debug_printk);
 static int drm_minor_get_id(struct drm_device *dev, int type)
 {
         int new_id;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index efa5f79a35c..afc21685230 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -87,6 +87,15 @@ struct drm_device;
 #include "drm_os_linux.h"
 #include "drm_hashtab.h"
 
+#define DRM_UT_CORE             0x01
+#define DRM_UT_DRIVER           0x02
+#define DRM_UT_KMS              0x04
+#define DRM_UT_MODE             0x08
+
+extern void drm_ut_debug_printk(unsigned int request_level,
+                                const char *prefix,
+                                const char *function_name,
+                                const char *format, ...);
 /***********************************************************************/
 /** \name DRM template customization defaults */
 /*@{*/
@@ -186,15 +195,57 @@ struct drm_device;
  * \param arg arguments
  */
 #if DRM_DEBUG_CODE
-#define DRM_DEBUG(fmt, arg...)                                          \
+#define DRM_DEBUG(fmt, args...)                                         \
         do {                                                            \
-                if ( drm_debug )                        \
-                        printk(KERN_DEBUG                               \
-                               "[" DRM_NAME ":%s] " fmt ,       \
-                               __func__ , ##arg);                       \
+                drm_ut_debug_printk(DRM_UT_CORE, DRM_NAME,              \
+                                        __func__, fmt, ##args);         \
+        } while (0)
+
+#define DRM_DEBUG_DRIVER(prefix, fmt, args...)                          \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_DRIVER, prefix,              \
+                                        __func__, fmt, ##args);         \
+        } while (0)
+#define DRM_DEBUG_KMS(prefix, fmt, args...)                             \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_KMS, prefix,                 \
+                                         __func__, fmt, ##args);        \
+        } while (0)
+#define DRM_DEBUG_MODE(prefix, fmt, args...)                            \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_MODE, prefix,                \
+                                         __func__, fmt, ##args);        \
+        } while (0)
+#define DRM_LOG(fmt, args...)                                           \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_CORE, NULL,                  \
+                                        NULL, fmt, ##args);             \
+        } while (0)
+#define DRM_LOG_KMS(fmt, args...)                                       \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_KMS, NULL,                   \
+                                        NULL, fmt, ##args);             \
+        } while (0)
+#define DRM_LOG_MODE(fmt, args...)                                      \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_MODE, NULL,                  \
+                                        NULL, fmt, ##args);             \
+        } while (0)
+#define DRM_LOG_DRIVER(fmt, args...)                                    \
+        do {                                                            \
+                drm_ut_debug_printk(DRM_UT_DRIVER, NULL,                \
+                                        NULL, fmt, ##args);             \
         } while (0)
 #else
+#define DRM_DEBUG_DRIVER(prefix, fmt, args...) do { } while (0)
+#define DRM_DEBUG_KMS(prefix, fmt, args...)     do { } while (0)
+#define DRM_DEBUG_MODE(prefix, fmt, args...)    do { } while (0)
 #define DRM_DEBUG(fmt, arg...)           do { } while (0)
+#define DRM_LOG(fmt, arg...)            do { } while (0)
+#define DRM_LOG_KMS(fmt, args...) do { } while (0)
+#define DRM_LOG_MODE(fmt, arg...) do { } while (0)
+#define DRM_LOG_DRIVER(fmt, arg...) do { } while (0)
+
 #endif
 
 #define DRM_PROC_LIMIT (PAGE_SIZE-80)