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Commit 00c73bf5 authored by Govindaraj Rajagopal's avatar Govindaraj Rajagopal
Browse files

msm: vidc: Rate limit frequently occurring error logs 



Rate limit frequently occurring error logs to avoid cpu
watchdog timeout.

Change-Id: I9c7c1d22b93125934ff382f9547fe2964b8a2a72
Signed-off-by: default avatarGovindaraj Rajagopal <grajagop@codeaurora.org>
parent c434037e

drivers/media/platform/msm/vidc/msm_vidc_debug.c

+8 −0
Original line number Diff line number Diff line
@@ -519,3 +519,11 @@ void msm_vidc_debugfs_update(struct msm_vidc_inst *inst, 
	}

}



int msm_vidc_check_ratelimit(void)

{

	static DEFINE_RATELIMIT_STATE(_rs,

				VIDC_DBG_SESSION_RATELIMIT_INTERVAL,

				VIDC_DBG_SESSION_RATELIMIT_BURST);

	return __ratelimit(&_rs);

}

drivers/media/platform/msm/vidc/msm_vidc_debug.h

+21 −0
Original line number Diff line number Diff line
@@ -15,6 +15,14 @@ 
#define VIDC_DBG_LABEL "msm_vidc"

#endif



/*

 * This enforces a rate limit: not more than 6 messages

 * in every 1s.

 */



#define VIDC_DBG_SESSION_RATELIMIT_INTERVAL (1 * HZ)

#define VIDC_DBG_SESSION_RATELIMIT_BURST 6



#define VIDC_DBG_TAG VIDC_DBG_LABEL ": %4s: "



/* To enable messages OR these values and
@@ -66,6 +74,18 @@ extern bool msm_vidc_dyn_gov_debug; 
		} \

	} while (0)



#define dprintk_ratelimit(__level, __fmt, arg...) \

	do { \

		if (msm_vidc_debug & __level) { \

			if (msm_vidc_debug_out == VIDC_OUT_PRINTK && \

					msm_vidc_check_ratelimit()) { \

				pr_info(VIDC_DBG_TAG __fmt, \

					get_debug_level_str(__level),	\

					## arg); \

			} \

		} \

	} while (0)



#define MSM_VIDC_ERROR(value)					\

	do {	if (value)					\

			dprintk(VIDC_DBG, "BugOn");		\
@@ -81,6 +101,7 @@ struct dentry *msm_vidc_debugfs_init_inst(struct msm_vidc_inst *inst, 
void msm_vidc_debugfs_deinit_inst(struct msm_vidc_inst *inst);

void msm_vidc_debugfs_update(struct msm_vidc_inst *inst,

		enum msm_vidc_debugfs_event e);

int msm_vidc_check_ratelimit(void);



static inline char *get_debug_level_str(int level)

{

drivers/media/platform/msm/vidc/msm_vidc_res_parse.c

+1 −1
Original line number Diff line number Diff line
@@ -949,7 +949,7 @@ int msm_vidc_smmu_fault_handler(struct iommu_domain *domain, 


	if (core->smmu_fault_handled) {

		if (core->resources.non_fatal_pagefaults) {

			dprintk(VIDC_ERR,

			dprintk_ratelimit(VIDC_ERR,

					"%s: non-fatal pagefault address: %lx\n",

					__func__, iova);

			return 0;