Commit 00151afc authored Feb 12, 2020 by Kent Russell Committed by Alex Deucher Feb 12, 2020

drm/powerplay: Ratelimit PP_ASSERT warnings



In certain situations the message could be reported dozens-to-hundreds of
times, based on how often the function is called.
E.g. If MCLK DPM, any calls to get/set MCLK will result in a failure
message, potentially flooding dmesg. Ratelimit the warnings to avoid
this flood.

Signed-off-by: Kent Russell <kent.russell@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 79275af6

drivers/gpu/drm/amd/powerplay/inc/pp_debug.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -37,7 +37,7 @@
		#define PP_ASSERT_WITH_CODE(cond, msg, code) \
		do { \
		if (!(cond)) { \
		pr_warn("%s\n", msg); \
		pr_warn_ratelimited("%s\n", msg); \
		code; \
		} \
		} while (0)
		@@ -45,7 +45,7 @@
		#define PP_ASSERT(cond, msg) \
		do { \
		if (!(cond)) { \
		pr_warn("%s\n", msg); \
		pr_warn_ratelimited("%s\n", msg); \
		} \
		} while (0)