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authoryakui_zhao <yakui.zhao@intel.com>2009-06-02 14:09:47 +0800
committerDave Airlie <airlied@redhat.com>2009-06-11 18:36:36 +1000
commit4fefcb27050b98c97b1c32bc710fc2f874449dee (patch)
tree1983f5ca546dab13d56ad8207762fee6088c9079 /include/drm
parentdf4f7fe7bd516b3833e25c692c3970e22038a6ca (diff)
drm: add separate drm debugging levels
Now all the DRM debug info will be reported if the boot option of "drm.debug=1" is added. Sometimes it is inconvenient to get the debug info in KMS mode. We will get too much unrelated info. This will separate several DRM debug levels and the debug level can be used to print the different debug info. And the debug level is controlled by the module parameter of drm.debug In this patch it is divided into four debug levels; drm_core, drm_driver, drm_kms, drm_mode. At the same time we can get the different debug info by changing the debug level. This can be done by adding the module parameter. Of course it can be changed through the /sys/module/drm/parameters/debug after the system is booted. Four debug macro definitions are provided. DRM_DEBUG(fmt, args...) DRM_DEBUG_DRIVER(prefix, fmt, args...) DRM_DEBUG_KMS(prefix, fmt, args...) DRM_DEBUG_MODE(prefix, fmt, args...) When the boot option of "drm.debug=4" is added, it will print the debug info using DRM_DEBUG_KMS macro definition. When the boot option of "drm.debug=6" is added, it will print the debug info using DRM_DEBUG_KMS/DRM_DEBUG_DRIVER. Sometimes we expect to print the value of an array. For example: SDVO command, In such case the following four DRM debug macro definitions are added: DRM_LOG(fmt, args...) DRM_LOG_DRIVER(fmt, args...) DRM_LOG_KMS(fmt, args...) DRM_LOG_MODE(fmt, args...) Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drmP.h61
1 files changed, 56 insertions, 5 deletions
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)