From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 26 ++++++++++++--------------
1 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/kernel/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/kernel/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index 4aff69c..3e8b5ea 100644
--- a/kernel/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/kernel/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* HiSilicon SoC L3C uncore Hardware event counters support
*
@@ -6,10 +7,6 @@
* Shaokun Zhang <zhangshaokun@hisilicon.com>
*
* This code is based on the uncore PMUs like arm-cci and arm-ccn.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/acpi.h>
#include <linux/bug.h>
@@ -209,10 +206,8 @@
/* Read and init IRQ */
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "L3C PMU get irq fail; irq:%d\n", irq);
+ if (irq < 0)
return irq;
- }
ret = devm_request_irq(&pdev->dev, irq, hisi_l3c_pmu_isr,
IRQF_NOBALANCING | IRQF_NO_THREAD,
@@ -238,7 +233,6 @@
struct hisi_pmu *l3c_pmu)
{
unsigned long long id;
- struct resource *res;
acpi_status status;
status = acpi_evaluate_integer(ACPI_HANDLE(&pdev->dev),
@@ -264,8 +258,7 @@
return -EINVAL;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- l3c_pmu->base = devm_ioremap_resource(&pdev->dev, res);
+ l3c_pmu->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(l3c_pmu->base)) {
dev_err(&pdev->dev, "ioremap failed for l3c_pmu resource\n");
return PTR_ERR(l3c_pmu->base);
@@ -387,6 +380,7 @@
l3c_pmu->sccl_id, l3c_pmu->index_id);
l3c_pmu->pmu = (struct pmu) {
.name = name,
+ .module = THIS_MODULE,
.task_ctx_nr = perf_invalid_context,
.event_init = hisi_uncore_pmu_event_init,
.pmu_enable = hisi_uncore_pmu_enable,
@@ -397,13 +391,15 @@
.stop = hisi_uncore_pmu_stop,
.read = hisi_uncore_pmu_read,
.attr_groups = hisi_l3c_pmu_attr_groups,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
};
ret = perf_pmu_register(&l3c_pmu->pmu, name, -1);
if (ret) {
dev_err(l3c_pmu->dev, "L3C PMU register failed!\n");
- cpuhp_state_remove_instance(CPUHP_AP_PERF_ARM_HISI_L3_ONLINE,
- &l3c_pmu->node);
+ cpuhp_state_remove_instance_nocalls(
+ CPUHP_AP_PERF_ARM_HISI_L3_ONLINE, &l3c_pmu->node);
+ irq_set_affinity_hint(l3c_pmu->irq, NULL);
}
return ret;
@@ -414,8 +410,9 @@
struct hisi_pmu *l3c_pmu = platform_get_drvdata(pdev);
perf_pmu_unregister(&l3c_pmu->pmu);
- cpuhp_state_remove_instance(CPUHP_AP_PERF_ARM_HISI_L3_ONLINE,
- &l3c_pmu->node);
+ cpuhp_state_remove_instance_nocalls(CPUHP_AP_PERF_ARM_HISI_L3_ONLINE,
+ &l3c_pmu->node);
+ irq_set_affinity_hint(l3c_pmu->irq, NULL);
return 0;
}
@@ -424,6 +421,7 @@
.driver = {
.name = "hisi_l3c_pmu",
.acpi_match_table = ACPI_PTR(hisi_l3c_pmu_acpi_match),
+ .suppress_bind_attrs = true,
},
.probe = hisi_l3c_pmu_probe,
.remove = hisi_l3c_pmu_remove,
--
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