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msm: camera: isp: Add debug info in ISP state machine

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Monitor frame events driving the state machine.
To better understand what led to the state machine stalling update
debug info that is logged on errors.

CRs-Fixed: 3309151
Change-Id: Iccf0efd82069b342e5d4b1731292604d37263b0b
Signed-off-by: Karthik Anantha Ram <quic_kartanan@quicinc.com>
This commit is contained in:
Karthik Anantha Ram
2021-10-21 21:08:33 -07:00
committed by Camera Software Integration
parent ba3f945f46
commit 81a980cf07
6 changed files with 300 additions and 97 deletions
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71
drivers/cam_isp/cam_isp_context.h
View File

@@ -62,6 +62,15 @@
/* Debug Buffer length*/
#define CAM_ISP_CONTEXT_DBG_BUF_LEN 300
/* Maximum entries in frame record */
#define CAM_ISP_CTX_MAX_FRAME_RECORDS 5
/*
* Congestion count threshold
*/
#define CAM_ISP_CONTEXT_CONGESTION_CNT_MAX 3
/* forward declaration */
struct cam_isp_context;
@@ -243,6 +252,56 @@ struct cam_isp_context_event_record {
ktime_t timestamp;
};
/**
*
*
* struct cam_isp_context_frame_timing_record - Frame timing events
*
* @sof_ts: SOF timestamp
* @eof_ts: EOF ts
* @epoch_ts: EPOCH ts
* @secondary_sof_ts: Secondary SOF ts
*
*/
struct cam_isp_context_frame_timing_record {
struct timespec64 sof_ts;
struct timespec64 eof_ts;
struct timespec64 epoch_ts;
struct timespec64 secondary_sof_ts;
};
/**
*
*
* struct cam_isp_context_debug_monitors - ISP context debug monitors
*
* @state_monitor_head: State machine monitor head
* @state_monitor: State machine monitor info
* @event_record_head: Request Event monitor head
* @event_record: Request event monitor info
* @frame_monitor_head: Frame timing monitor head
* @frame_monitor: Frame timing event monitor
*
*/
struct cam_isp_context_debug_monitors {
/* State machine monitoring */
atomic64_t state_monitor_head;
struct cam_isp_context_state_monitor state_monitor[
CAM_ISP_CTX_STATE_MONITOR_MAX_ENTRIES];
/* Req event monitor */
atomic64_t event_record_head[
CAM_ISP_CTX_EVENT_MAX];
struct cam_isp_context_event_record event_record[
CAM_ISP_CTX_EVENT_MAX][CAM_ISP_CTX_EVENT_RECORD_MAX_ENTRIES];
/* Frame timing monitor */
atomic64_t frame_monitor_head;
struct cam_isp_context_frame_timing_record frame_monitor[
CAM_ISP_CTX_MAX_FRAME_RECORDS];
};
/**
* struct cam_isp_context - ISP context object
*
@@ -271,11 +330,11 @@ struct cam_isp_context_event_record {
* @aeb_error_cnt: Count number of times a specific AEB error scenario is
* enountered
* @out_of_sync_cnt: Out of sync error count for AEB
* @congestion_cnt: Count number of times congestion was encountered
* consecutively
* @state_monitor_head: Write index to the state monitoring array
* @req_info Request id information about last buf done
* @cam_isp_ctx_state_monitor: State monitoring array
* @event_record_head: Write index to the state monitoring array
* @event_record: Event record array
* @dbg_monitors: Debug monitors for ISP context
* @rdi_only_context: Get context type information.
* true, if context is rdi only context
* @offline_context: Indicate whether context is for offline IFE
@@ -341,14 +400,12 @@ struct cam_isp_context {
uint32_t bubble_frame_cnt;
uint32_t aeb_error_cnt;
uint32_t out_of_sync_cnt;
uint32_t congestion_cnt;
atomic64_t state_monitor_head;
struct cam_isp_context_state_monitor cam_isp_ctx_state_monitor[
CAM_ISP_CTX_STATE_MONITOR_MAX_ENTRIES];
struct cam_isp_context_req_id_info req_info;
atomic64_t event_record_head[
CAM_ISP_CTX_EVENT_MAX];
struct cam_isp_context_event_record event_record[
CAM_ISP_CTX_EVENT_MAX][CAM_ISP_CTX_EVENT_RECORD_MAX_ENTRIES];
struct cam_isp_context_debug_monitors dbg_monitors;
bool rdi_only_context;
bool offline_context;
bool vfps_aux_context;