msm: gsi: dump channel information

Dump channel information when stop channel fails.

Change-Id: I39ef3338c9e7e968ee6a592debc23edbff9f8fc8
Signed-off-by: Chaitanya Pratapa <[email protected]>

drivers/platform/msm/gsi/gsi.c

@@ -3075,6 +3075,7 @@ int gsi_start_channel(unsigned long chan_hdl)
 		 */
 		GSIERR("chan=%lu timed out, unexpected state=%u\n",
 			chan_hdl, ctx->state);
+		gsi_dump_ch_info(chan_hdl);
 		GSI_ASSERT();
 	}
 
@@ -3090,6 +3091,95 @@ int gsi_start_channel(unsigned long chan_hdl)
 }
 EXPORT_SYMBOL(gsi_start_channel);
 
+void gsi_dump_ch_info(unsigned long chan_hdl)
+{
+	uint32_t val;
+
+	if (!gsi_ctx) {
+		pr_err("%s:%d gsi context not allocated\n", __func__, __LINE__);
+		return;
+	}
+
+	if (chan_hdl >= gsi_ctx->max_ch) {
+		GSIDBG("invalid chan id %u\n", chan_hdl);
+		return;
+	}
+
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_0,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX0  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_1,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX1  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_2,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX2  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_3,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX3  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_4,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX4  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_5,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX5  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_6,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX6  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_7,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d CTX7  0x%x\n", chan_hdl, val);
+	if (gsi_ctx->per.ver >= GSI_VER_3_0) {
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_8,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d CTX8  0x%x\n", chan_hdl, val);
+	}
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_RE_FETCH_READ_PTR,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d REFRP 0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_RE_FETCH_WRITE_PTR,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d REFWP 0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_QOS,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d QOS   0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_0,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d SCR0  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_1,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d SCR1  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_2,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d SCR2  0x%x\n", chan_hdl, val);
+	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_3,
+		gsi_ctx->per.ee, chan_hdl);
+	GSIERR("CH%2d SCR3  0x%x\n", chan_hdl, val);
+	if (gsi_ctx->per.ver >= GSI_VER_3_0) {
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_4,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR4  0x%x\n", chan_hdl, val);
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_5,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR5  0x%x\n", chan_hdl, val);
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_6,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR6  0x%x\n", chan_hdl, val);
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_7,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR7  0x%x\n", chan_hdl, val);
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_8,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR8  0x%x\n", chan_hdl, val);
+		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_9,
+			gsi_ctx->per.ee, chan_hdl);
+		GSIERR("CH%2d SCR9  0x%x\n", chan_hdl, val);
+	}
+
+	return;
+}
+EXPORT_SYMBOL(gsi_dump_ch_info);
+
 int gsi_stop_channel(unsigned long chan_hdl)
 {
 	enum gsi_ch_cmd_opcode op = GSI_CH_STOP;
@@ -3140,7 +3230,7 @@ int gsi_stop_channel(unsigned long chan_hdl)
 	gsihal_write_reg_n_fields(GSI_EE_n_GSI_CH_CMD,
 		gsi_ctx->per.ee, &ch_cmd);
 
-	GSIDBG("GSI Channel Stop, waiting for completion\n");
+	GSIDBG("GSI Channel Stop, waiting for completion: 0x%x\n", val);
 	gsi_channel_state_change_wait(chan_hdl,
 		ctx,
 		GSI_STOP_CMD_TIMEOUT_MS, op);
@@ -3148,6 +3238,7 @@ int gsi_stop_channel(unsigned long chan_hdl)
 	if (ctx->state != GSI_CHAN_STATE_STOPPED &&
 		ctx->state != GSI_CHAN_STATE_STOP_IN_PROC) {
 		GSIERR("chan=%lu unexpected state=%u\n", chan_hdl, ctx->state);
+		gsi_dump_ch_info(chan_hdl);
 		res = -GSI_STATUS_BAD_STATE;
 		BUG();
 		goto free_lock;

drivers/platform/msm/gsi/gsi.h

@@ -2233,6 +2233,15 @@ int gsi_enable_flow_control_ee(unsigned int chan_idx, unsigned int ee,
 */
 int gsi_query_aqc_msi_addr(unsigned long chan_hdl, u32 *addr);
 
+/**
+* gsi_dump_ch_info - channel information.
+*
+* @chan_id: channel id
+*
+* @Return void
+*/
+void gsi_dump_ch_info(unsigned long chan_hdl);
+
 /*
  * Here is a typical sequence of calls
  *

drivers/platform/msm/gsi/gsi_dbg.c

@@ -182,76 +182,7 @@ static ssize_t gsi_dump_ch(struct file *file,
 		return -EINVAL;
 	}
 
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_0,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX0  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_1,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX1  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_2,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX2  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_3,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX3  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_4,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX4  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_5,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX5  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_6,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX6  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_7,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d CTX7  0x%x\n", arg1, val);
-	if (gsi_ctx->per.ver >= GSI_VER_3_0) {
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_CNTXT_8,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d CTX8  0x%x\n", arg1, val);
-	}
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_RE_FETCH_READ_PTR,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d REFRP 0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_RE_FETCH_WRITE_PTR,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d REFWP 0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_QOS,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d QOS   0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_0,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d SCR0  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_1,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d SCR1  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_2,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d SCR2  0x%x\n", arg1, val);
-	val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_3,
-		gsi_ctx->per.ee, arg1);
-	TERR("CH%2d SCR3  0x%x\n", arg1, val);
-	if (gsi_ctx->per.ver >= GSI_VER_3_0) {
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_4,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR4  0x%x\n", arg1, val);
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_5,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR5  0x%x\n", arg1, val);
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_6,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR6  0x%x\n", arg1, val);
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_7,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR7  0x%x\n", arg1, val);
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_8,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR8  0x%x\n", arg1, val);
-		val = gsihal_read_reg_nk(GSI_EE_n_GSI_CH_k_SCRATCH_9,
-			gsi_ctx->per.ee, arg1);
-		TERR("CH%2d SCR9  0x%x\n", arg1, val);
-	}
+	gsi_dump_ch_info(arg1);
 
 	if (arg2) {
 		ctx = &gsi_ctx->chan[arg1];