Commit 9e9bb3e3 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Junhao He
Browse files

coresight: trbe: Enable ACPI based TRBE devices 

maillist inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8BOB3
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git/commit/?h=next&id=29edc1ce5c654cb66ef0a234b93c773fc8f2ba4a



--------------------------------

This detects and enables ACPI based TRBE devices via the dummy platform
device created earlier for this purpose.

Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230829135405.1159449-3-anshuman.khandual@arm.com


Signed-off-by: default avatarJunhao He <hejunhao3@huawei.com>
parent fb6fb072

drivers/hwtracing/coresight/coresight-trbe.c

+9 −0
Original line number Diff line number Diff line
@@ -1198,7 +1198,16 @@ static const struct of_device_id arm_trbe_of_match[] = { 
};

MODULE_DEVICE_TABLE(of, arm_trbe_of_match);



#ifdef CONFIG_ACPI

static const struct platform_device_id arm_trbe_acpi_match[] = {

	{ ARMV8_TRBE_PDEV_NAME, 0 },

	{ }

};

MODULE_DEVICE_TABLE(platform, arm_trbe_acpi_match);

#endif



static struct platform_driver arm_trbe_driver = {

	.id_table = ACPI_PTR(arm_trbe_acpi_match),

	.driver	= {

		.name = DRVNAME,

		.of_match_table = of_match_ptr(arm_trbe_of_match),

drivers/hwtracing/coresight/coresight-trbe.h

+2 −0
Original line number Diff line number Diff line
@@ -7,11 +7,13 @@ 
 *

 * Author: Anshuman Khandual <anshuman.khandual@arm.com>

 */

#include <linux/acpi.h>

#include <linux/coresight.h>

#include <linux/device.h>

#include <linux/irq.h>

#include <linux/kernel.h>

#include <linux/of.h>

#include <linux/perf/arm_pmu.h>

#include <linux/platform_device.h>

#include <linux/smp.h>