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>

diff --git a/drivers/gpu/drm/amd/powerplay/inc/pp_debug.h b/drivers/gpu/drm/amd/powerplay/inc/pp_debug.h
index 822cd8b..cea6509 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/pp_debug.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/pp_debug.h
@@ -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)