Add drm_debug_once* macros to allow printing out one time debug messages which can be still controlled via drm.debug parameter. Cc: José Roberto de Souza <jose.souza@xxxxxxxxx> Cc: Mika Kahola <mika.kahola@xxxxxxxxx> Cc: Mark Pearson <markpearson@xxxxxxxxxx> Signed-off-by: Jouni Högander <jouni.hogander@xxxxxxxxx> --- include/drm/drm_print.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index 22fabdeed297..e339f47eeb6d 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -476,6 +476,35 @@ void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, #define drm_dbg_drmres(drm, fmt, ...) \ drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) +#define drm_dev_dbg_once(dev, cat, fmt, ...) \ +({ \ + static bool __print_once __read_mostly; \ + if (!__print_once) { \ + __print_once = true; \ + drm_dev_dbg(dev, cat, fmt, ##__VA_ARGS__); \ + } \ +}) + +#define drm_dbg_once_core(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__) +#define drm_dbg_once(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) +#define drm_dbg_once_kms(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__) +#define drm_dbg_once_prime(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__) +#define drm_dbg_once_atomic(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) +#define drm_dbg_once_vbl(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__) +#define drm_dbg_once_state(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__) +#define drm_dbg_once_lease(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__) +#define drm_dbg_once_dp(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__) +#define drm_dbg_once_drmres(drm, fmt, ...) \ + drm_dev_dbg_once((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) /* * printk based logging -- 2.25.1