video: driver: enable memory tracking in stats handler

track internal memory usage periodically and print
memory usage stats using stats handler.

Change-Id: Idd16647dbe4aab3fc617a8f7fc0d3c81f459bb5d
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>

driver/vidc/inc/msm_vidc_debug.h

@@ -111,7 +111,7 @@ enum vidc_msg_prio {
 #define i_vpr_hp(inst, __fmt, ...) \
 	dprintk_inst(VIDC_HIGH | VIDC_PERF, "high", inst, __fmt, ##__VA_ARGS__)
 #define i_vpr_hs(inst, __fmt, ...) \
-	dprintk_inst(VIDC_HIGH | VIDC_STAT, "high", inst, __fmt, ##__VA_ARGS__)
+	dprintk_inst(VIDC_HIGH | VIDC_STAT, "stat", inst, __fmt, ##__VA_ARGS__)
 
 #define dprintk_core(__level, __level_str, __fmt, ...) \
 	do { \
@@ -181,4 +181,9 @@ void msm_vidc_debugfs_update(void *inst,
 int msm_vidc_check_ratelimit(void);
 void msm_vidc_show_stats(void *inst);
 
+static inline bool is_stats_enabled(void)
+{
+	return !!(msm_vidc_debug & VIDC_STAT);
+}
+
 #endif

driver/vidc/inc/msm_vidc_driver.h

@@ -496,6 +496,7 @@ void msm_vidc_stats_handler(struct work_struct *work);
 int schedule_stats_work(struct msm_vidc_inst *inst);
 int cancel_stats_work_sync(struct msm_vidc_inst *inst);
 void msm_vidc_print_stats(struct msm_vidc_inst *inst);
+void msm_vidc_print_memory_stats(struct msm_vidc_inst *inst);
 enum msm_vidc_buffer_type v4l2_type_to_driver(u32 type,
 	const char *func);
 int msm_vidc_buf_queue(struct msm_vidc_inst *inst, struct msm_vidc_buffer *buf);

driver/vidc/src/msm_vdec.c

@@ -2156,6 +2156,9 @@ int msm_vdec_start_cmd(struct msm_vidc_inst *inst)
 	/* print final buffer counts & size details */
 	msm_vidc_print_buffer_info(inst);
 
+	/* print internal buffer memory usage stats */
+	msm_vidc_print_memory_stats(inst);
+
 	rc = msm_vidc_process_resume(inst);
 	if (rc)
 		return rc;

driver/vidc/src/msm_venc.c

@@ -1009,6 +1009,9 @@ int msm_venc_start_cmd(struct msm_vidc_inst *inst)
 	/* print final buffer counts & size details */
 	msm_vidc_print_buffer_info(inst);
 
+	/* print internal buffer memory usage stats */
+	msm_vidc_print_memory_stats(inst);
+
 	rc = msm_vidc_process_resume(inst);
 	if (rc)
 		return rc;

driver/vidc/src/msm_vidc.c

@@ -1077,6 +1077,8 @@ int msm_vidc_close(void *instance)
 	inst_lock(inst, __func__);
 	/* print final stats */
 	msm_vidc_print_stats(inst);
+	/* print internal buffer memory usage stats */
+	msm_vidc_print_memory_stats(inst);
 	msm_vidc_print_residency_stats(core);
 	msm_vidc_session_close(inst);
 	msm_vidc_change_state(inst, MSM_VIDC_CLOSE, __func__);

driver/vidc/src/msm_vidc_driver.c

@@ -2760,7 +2760,7 @@ void msm_vidc_print_stats(struct msm_vidc_inst *inst)
 	bitrate_kbps = (inst->stats.data_size * 8 * 1000) / (dt_ms * 1024);
 
 	i_vpr_hs(inst,
-		"stats: counts (etb,ebd,ftb,fbd): %u %u %u %u (total %llu %llu %llu %llu), achieved bitrate %lldKbps fps %u/s, frame rate %u, operating rate %u, priority %u, dt %ums\n",
+		"counts (etb,ebd,ftb,fbd): %u %u %u %u (total %llu %llu %llu %llu), achieved bitrate %lldKbps fps %u/s, frame rate %u, operating rate %u, priority %u, dt %ums\n",
 		etb, ebd, ftb, fbd, inst->debug_count.etb, inst->debug_count.ebd,
 		inst->debug_count.ftb, inst->debug_count.fbd,
 		bitrate_kbps, achieved_fps, frame_rate, operating_rate, priority, dt_ms);
@@ -2770,6 +2770,63 @@ void msm_vidc_print_stats(struct msm_vidc_inst *inst)
 	inst->stats.time_ms = time_ms;
 }
 
+void msm_vidc_print_memory_stats(struct msm_vidc_inst *inst)
+{
+	static enum msm_vidc_buffer_type buf_type_arr[9] = {
+		MSM_VIDC_BUF_BIN,
+		MSM_VIDC_BUF_ARP,
+		MSM_VIDC_BUF_COMV,
+		MSM_VIDC_BUF_NON_COMV,
+		MSM_VIDC_BUF_LINE,
+		MSM_VIDC_BUF_DPB,
+		MSM_VIDC_BUF_PERSIST,
+		MSM_VIDC_BUF_VPSS,
+		MSM_VIDC_BUF_PARTIAL_DATA,
+	};
+	u32 count_arr[9];
+	u32 size_arr[9];
+	u32 size_kb_arr[9];
+	u64 total_size = 0;
+	struct msm_vidc_buffers *buffers;
+	int cnt;
+
+	if (!inst) {
+		i_vpr_e(inst, "%s: invalid params\n", __func__);
+		return;
+	}
+
+	/* reset array values */
+	memset(&count_arr, 0, sizeof(count_arr));
+	memset(&size_arr, 0, sizeof(size_arr));
+	memset(&size_kb_arr, 0, sizeof(size_kb_arr));
+
+	/* populate buffer details */
+	for (cnt = 0; cnt < 9; cnt++) {
+		buffers = msm_vidc_get_buffers(inst, buf_type_arr[cnt], __func__);
+		if (!buffers)
+			continue;
+
+		size_arr[cnt] = buffers->size;
+		count_arr[cnt] = buffers->min_count;
+		size_kb_arr[cnt] = (size_arr[cnt] * count_arr[cnt]) / 1024;
+		total_size += size_arr[cnt] * count_arr[cnt];
+	}
+
+	/* print internal memory stats */
+	i_vpr_hs(inst,
+		"%s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) %s %u kb(%ux%d) total %llu kb\n",
+		buf_name(buf_type_arr[0]), size_kb_arr[0], size_arr[0], count_arr[0],
+		buf_name(buf_type_arr[1]), size_kb_arr[1], size_arr[1], count_arr[1],
+		buf_name(buf_type_arr[2]), size_kb_arr[2], size_arr[2], count_arr[2],
+		buf_name(buf_type_arr[3]), size_kb_arr[3], size_arr[3], count_arr[3],
+		buf_name(buf_type_arr[4]), size_kb_arr[4], size_arr[4], count_arr[4],
+		buf_name(buf_type_arr[5]), size_kb_arr[5], size_arr[5], count_arr[5],
+		buf_name(buf_type_arr[6]), size_kb_arr[6], size_arr[6], count_arr[6],
+		buf_name(buf_type_arr[7]), size_kb_arr[7], size_arr[7], count_arr[7],
+		buf_name(buf_type_arr[8]), size_kb_arr[8], size_arr[8], count_arr[8],
+		(total_size / 1024));
+}
+
 int schedule_stats_work(struct msm_vidc_inst *inst)
 {
 	struct msm_vidc_core *core;
@@ -2779,6 +2836,11 @@ int schedule_stats_work(struct msm_vidc_inst *inst)
 		return -EINVAL;
 	}
 
+	if (!is_stats_enabled()) {
+		i_vpr_h(inst, "%s: stats not enabled. Skip scheduling\n", __func__);
+		return 0;
+	}
+
 	/**
 	 * Hfi session is already closed and inst also going to be
 	 * closed soon. So skip scheduling new stats_work to avoid

driver/vidc/src/msm_vidc_vb2.c

@@ -480,6 +480,9 @@ int msm_vidc_start_streaming(struct msm_vidc_inst *inst, struct vb2_queue *q)
 	/* print final buffer counts & size details */
 	msm_vidc_print_buffer_info(inst);
 
+	/* print internal buffer memory usage stats */
+	msm_vidc_print_memory_stats(inst);
+
 	buf_type = v4l2_type_to_driver(q->type, __func__);
 	if (!buf_type)
 		return -EINVAL;
@@ -556,6 +559,9 @@ int msm_vidc_stop_streaming(struct msm_vidc_inst *inst, struct vb2_queue *q)
 		msm_vidc_flush_buffer_stats(inst);
 	}
 
+	/* print internal buffer memory usage stats */
+	msm_vidc_print_memory_stats(inst);
+
 	i_vpr_h(inst, "Streamoff: %s successful\n", v4l2_type_name(q->type));
 	return rc;
 }