Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 267d8573 authored by Satyajit Desai's avatar Satyajit Desai Committed by Saranya Chidura
Browse files

coresight-tpdm: Add support to dump MCMB MSR 



Add support to dump MSR for MCMB TPDM. This is needed
for postprocessing of dump data obtained from MCMB source.

Change-Id: Iddcd6dba98463ddf5e1df66378ba2645ee53c644
Signed-off-by: default avatarSatyajit Desai <sadesai@codeaurora.org>
Signed-off-by: default avatarSaranya Chidura <schidura@codeaurora.org>
parent 436b6888

Documentation/devicetree/bindings/arm/coresight.txt

+1 −0
Original line number Diff line number Diff line
@@ -154,6 +154,7 @@ its hardware characteristcs. 
	* qcom,msr-fix-req: boolean, indicating if MSRs need to be programmed

	  after enabling the subunit.



	* qcom,dump-enable: boolean, specifies to dump MCMB data.

* Optional properties for CTI:



	* qcom,cti-gpio-trigin: cti trigger input driven by gpio.

drivers/hwtracing/coresight/coresight-tpdm.c

+13 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/bitmap.h>

#include <linux/of.h>

#include <linux/coresight.h>

#include <soc/qcom/memory_dump.h>



#include "coresight-priv.h"
@@ -225,6 +226,7 @@ struct dsb_dataset { 
struct mcmb_dataset {

	uint8_t		mcmb_trig_lane;

	uint8_t		mcmb_lane_select;

	uint32_t		*mcmb_msr_dump_ptr;

};



struct cmb_dataset {
@@ -609,6 +611,11 @@ static void __tpdm_enable_mcmb(struct tpdm_drvdata *drvdata) 
	val = val & ~BM(10, 17);

	val = val | (BMVAL(mcmb->mcmb_lane_select, 0, 7) << 10);



	if (mcmb->mcmb_msr_dump_ptr) {

		for (i = 0; i < TPDM_CMB_MAX_MSR; i++)

			mcmb->mcmb_msr_dump_ptr[i] = drvdata->cmb->msr[i];

	}



	tpdm_writel(drvdata, val, TPDM_CMB_CR);

	/* Set the enable bit */

	val = val | BIT(0);
@@ -3910,6 +3917,12 @@ static int tpdm_datasets_alloc(struct tpdm_drvdata *drvdata) 
						  GFP_KERNEL);

		if (!drvdata->cmb->mcmb)

			return -ENOMEM;



		if (of_property_read_bool(drvdata->dev->of_node,

						    "qcom,dump-enable"))

			drvdata->cmb->mcmb->mcmb_msr_dump_ptr =

				(uint32_t *)get_msm_dump_ptr(

						MSM_DUMP_DATA_TPDM_SWAO_MCMB);

	}

	return 0;

}

include/soc/qcom/memory_dump.h

+1 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ enum msm_dump_data_ids { 
	MSM_DUMP_DATA_FCM = 0xEE,

	MSM_DUMP_DATA_POWER_REGS = 0xED,

	MSM_DUMP_DATA_TMC_ETF = 0xF0,

	MSM_DUMP_DATA_TPDM_SWAO_MCMB = 0xF2,

	MSM_DUMP_DATA_TMC_REG = 0x100,

	MSM_DUMP_DATA_LOG_BUF = 0x110,

	MSM_DUMP_DATA_LOG_BUF_FIRST_IDX = 0x111,