[PATCH v2 OLK-5.10 2/4] Revert "drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver"

25 Aug 2023

driver inclusion
category: cleanup
bugzilla: https://gitee.com/openeuler/kernel/issues/I7VP5K
CVE: NA
----------------------------------------------------------------------
Synchronizing the mainline patches.
This reverts commit f60853f06f0ad3d80778bd8af4200e7655f6b69e.
Signed-off-by: Junhao He hejunhao3@huawei.com
---
 drivers/perf/hisilicon/hisi_uncore_pa_pmu.c | 140 +++-----------------
 drivers/perf/hisilicon/hisi_uncore_pmu.h    |  36 +----
 2 files changed, 18 insertions(+), 158 deletions(-)

diff --git a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c
index e7e8cb999911..a71a7b590583 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_pa_pmu.c
@@ -22,14 +22,9 @@
 #define PA_TT_CTRL			0x1c08
 #define PA_TGTID_CTRL			0x1c14
 #define PA_SRCID_CTRL			0x1c18
-/* H32 PA interrupt registers */
 #define PA_INT_MASK			0x1c70
 #define PA_INT_STATUS			0x1c78
 #define PA_INT_CLEAR			0x1c7c
-/* H60 PA interrupt registers */
-#define H60PA_INT_STATUS		0x1c70
-#define H60PA_INT_MASK			0x1c74
-/* End interrupt registers */
 #define PA_EVENT_TYPE0			0x1c80
 #define PA_PMU_VERSION			0x1cf0
 #define PA_EVENT_CNT0_L			0x1d00
@@ -51,12 +46,6 @@ HISI_PMU_EVENT_ATTR_EXTRACTOR(srcid_cmd, config1, 32, 22);
 HISI_PMU_EVENT_ATTR_EXTRACTOR(srcid_msk, config1, 43, 33);
 HISI_PMU_EVENT_ATTR_EXTRACTOR(tracetag_en, config1, 44, 44);
-struct hisi_pa_pmu_int_regs {
-	u32 mask;
-	u32 clear;
-	u32 status;
-};
-
 static void hisi_pa_pmu_enable_tracetag(struct perf_event *event)
 {
    struct hisi_pmu *pa_pmu = to_hisi_pmu(event->pmu);
@@ -230,51 +219,44 @@ static void hisi_pa_pmu_disable_counter(struct hisi_pmu *pa_pmu,
 static void hisi_pa_pmu_enable_counter_int(struct hisi_pmu *pa_pmu,
    				   struct hw_perf_event *hwc)
 {
-	struct hisi_pa_pmu_int_regs *regs = pa_pmu->dev_info->present;
    u32 val;
/* Write 0 to enable interrupt */
-	val = readl(pa_pmu->base + regs->mask);
+	val = readl(pa_pmu->base + PA_INT_MASK);
    val &= ~(1 << hwc->idx);
-	writel(val, pa_pmu->base + regs->mask);
+	writel(val, pa_pmu->base + PA_INT_MASK);
 }
static void hisi_pa_pmu_disable_counter_int(struct hisi_pmu *pa_pmu,
    				    struct hw_perf_event *hwc)
 {
-	struct hisi_pa_pmu_int_regs *regs = pa_pmu->dev_info->present;
    u32 val;
/* Write 1 to mask interrupt */
-	val = readl(pa_pmu->base + regs->mask);
+	val = readl(pa_pmu->base + PA_INT_MASK);
    val |= 1 << hwc->idx;
-	writel(val, pa_pmu->base + regs->mask);
+	writel(val, pa_pmu->base + PA_INT_MASK);
 }
static u32 hisi_pa_pmu_get_int_status(struct hisi_pmu *pa_pmu)
 {
-	struct hisi_pa_pmu_int_regs *regs = pa_pmu->dev_info->present;
-
-	return readl(pa_pmu->base + regs->status);
+	return readl(pa_pmu->base + PA_INT_STATUS);
 }
static void hisi_pa_pmu_clear_int_status(struct hisi_pmu *pa_pmu, int idx)
 {
-	struct hisi_pa_pmu_int_regs *regs = pa_pmu->dev_info->present;
-
-	writel(1 << idx, pa_pmu->base + regs->clear);
+	writel(1 << idx, pa_pmu->base + PA_INT_CLEAR);
 }
+static const struct acpi_device_id hisi_pa_pmu_acpi_match[] = {
+	{ "HISI0273", },
+	{}
+};
+MODULE_DEVICE_TABLE(acpi, hisi_pa_pmu_acpi_match);
+
 static int hisi_pa_pmu_init_data(struct platform_device *pdev,
    			   struct hisi_pmu *pa_pmu)
 {
-	const struct hisi_pmu_dev_info *pa_pmu_info;
-	int idx;
-
-	pa_pmu_info = device_get_match_data(&pdev->dev);
-	if (!pa_pmu_info)
-		return -ENODEV;
-
    /*
     * As PA PMU is in a SICL, use the SICL_ID and the index ID
     * to identify the PA PMU.
@@ -302,11 +284,6 @@ static int hisi_pa_pmu_init_data(struct platform_device *pdev,
pa_pmu->identifier = readl(pa_pmu->base + PA_PMU_VERSION);
-	idx = hisi_uncore_pmu_ver2idx(pa_pmu);
-	pa_pmu->dev_info = &pa_pmu_info[idx];
-	if (!pa_pmu->dev_info || !pa_pmu->dev_info->name)
-		return -EINVAL;
-
    return 0;
 }
@@ -337,32 +314,6 @@ static const struct attribute_group hisi_pa_pmu_v2_events_group = {
    .attrs = hisi_pa_pmu_v2_events_attr,
 };
-static struct attribute *hisi_pa_pmu_v3_events_attr[] = {
-	HISI_PMU_EVENT_ATTR(tx_req,	0x0),
-	HISI_PMU_EVENT_ATTR(tx_dat,	0x1),
-	HISI_PMU_EVENT_ATTR(tx_snp,	0x2),
-	HISI_PMU_EVENT_ATTR(rx_req,	0x7),
-	HISI_PMU_EVENT_ATTR(rx_dat,	0x8),
-	HISI_PMU_EVENT_ATTR(rx_snp,	0x9),
-	NULL
-};
-
-static const struct attribute_group hisi_pa_pmu_v3_events_group = {
-	.name = "events",
-	.attrs = hisi_pa_pmu_v3_events_attr,
-};
-
-static struct attribute *hisi_h60pa_pmu_events_attr[] = {
-	HISI_PMU_EVENT_ATTR(rx_flit,	0x50),
-	HISI_PMU_EVENT_ATTR(tx_flit,	0x65),
-	NULL
-};
-
-static const struct attribute_group hisi_h60pa_pmu_events_group = {
-	.name = "events",
-	.attrs = hisi_h60pa_pmu_events_attr,
-};
-
 static DEVICE_ATTR(cpumask, 0444, hisi_cpumask_sysfs_show, NULL);
static struct attribute *hisi_pa_pmu_cpumask_attrs[] = {
@@ -382,7 +333,7 @@ static struct attribute *hisi_pa_pmu_identifier_attrs[] = {
    NULL
 };
-static const struct attribute_group hisi_pa_pmu_identifier_group = {
+static struct attribute_group hisi_pa_pmu_identifier_group = {
    .attrs = hisi_pa_pmu_identifier_attrs,
 };
@@ -394,57 +345,6 @@ static const struct attribute_group *hisi_pa_pmu_v2_attr_groups[] = {
    NULL
 };
-static const struct attribute_group *hisi_pa_pmu_v3_attr_groups[] = {
-	&hisi_pa_pmu_v2_format_group,
-	&hisi_pa_pmu_v3_events_group,
-	&hisi_pa_pmu_cpumask_attr_group,
-	&hisi_pa_pmu_identifier_group,
-	NULL
-};
-
-static struct hisi_pa_pmu_int_regs hisi_pa_pmu_regs = {
-	.mask = PA_INT_MASK,
-	.clear = PA_INT_CLEAR,
-	.status = PA_INT_STATUS,
-};
-
-static const struct hisi_pmu_dev_info hisi_h32pa[] = {
-	[1] = {
-		.name = "pa",
-		.attr_groups = hisi_pa_pmu_v2_attr_groups,
-		.present = &hisi_pa_pmu_regs,
-	},
-	[2] = {
-		.name = "pa",
-		.attr_groups = hisi_pa_pmu_v3_attr_groups,
-		.present = &hisi_pa_pmu_regs,
-	},
-	{}
-};
-
-static const struct attribute_group *hisi_h60pa_pmu_attr_groups[] = {
-	&hisi_pa_pmu_v2_format_group,
-	&hisi_h60pa_pmu_events_group,
-	&hisi_pa_pmu_cpumask_attr_group,
-	&hisi_pa_pmu_identifier_group,
-	NULL
-};
-
-static struct hisi_pa_pmu_int_regs hisi_h60pa_pmu_regs = {
-	.mask = H60PA_INT_MASK,
-	.clear = H60PA_INT_STATUS, /* Clear on write */
-	.status = H60PA_INT_STATUS,
-};
-
-static const struct hisi_pmu_dev_info hisi_h60pa[] = {
-	[1] = {
-		.name = "h60pa",
-		.attr_groups = hisi_h60pa_pmu_attr_groups,
-		.present = &hisi_h60pa_pmu_regs,
-	},
-	{}
-};
-
 static const struct hisi_uncore_ops hisi_uncore_pa_ops = {
    .write_evtype		= hisi_pa_pmu_write_evtype,
    .get_event_idx		= hisi_uncore_pmu_get_event_idx,
@@ -475,7 +375,7 @@ static int hisi_pa_pmu_dev_probe(struct platform_device *pdev,
    if (ret)
    	return ret;
-	pa_pmu->pmu_events.attr_groups = pa_pmu->dev_info->attr_groups;
+	pa_pmu->pmu_events.attr_groups = hisi_pa_pmu_v2_attr_groups;
    pa_pmu->num_counters = PA_NR_COUNTERS;
    pa_pmu->ops = &hisi_uncore_pa_ops;
    pa_pmu->check_event = 0xB0;
@@ -500,9 +400,8 @@ static int hisi_pa_pmu_probe(struct platform_device *pdev)
    if (ret)
    	return ret;
-	name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%d_%s%u",
-			      pa_pmu->sicl_id, pa_pmu->dev_info->name,
-			      pa_pmu->index_id);
+	name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "hisi_sicl%u_pa%u",
+			      pa_pmu->sicl_id, pa_pmu->index_id);
    if (!name)
    	return -ENOMEM;
@@ -536,13 +435,6 @@ static int hisi_pa_pmu_remove(struct platform_device *pdev)
    return 0;
 }
-static const struct acpi_device_id hisi_pa_pmu_acpi_match[] = {
-	{ "HISI0273", (kernel_ulong_t)hisi_h32pa },
-	{ "HISI0274", (kernel_ulong_t)hisi_h60pa },
-	{}
-};
-MODULE_DEVICE_TABLE(acpi, hisi_pa_pmu_acpi_match);
-
 static struct platform_driver hisi_pa_pmu_driver = {
    .driver = {
    	.name = "hisi_pa_pmu",
diff --git a/drivers/perf/hisilicon/hisi_uncore_pmu.h b/drivers/perf/hisilicon/hisi_uncore_pmu.h
index 8f589e8d88fa..f00631e8f88b 100644
--- a/drivers/perf/hisilicon/hisi_uncore_pmu.h
+++ b/drivers/perf/hisilicon/hisi_uncore_pmu.h
@@ -23,6 +23,7 @@
 #undef pr_fmt
 #define pr_fmt(fmt)     "hisi_pmu: " fmt
+#define HISI_PMU_V2		0x30
 #define HISI_MAX_COUNTERS 0x10
 #define to_hisi_pmu(p)	(container_of(p, struct hisi_pmu, pmu))
@@ -42,13 +43,6 @@
    	return FIELD_GET(GENMASK_ULL(hi, lo), event->attr.config);  \
    }
-enum hisi_pmu_version {
-	HISI_PMU_V1,
-	HISI_PMU_V2 = 0x30,
-	HISI_PMU_V3 = 0x40,
-	HISI_PMU_MAX
-};
-
 struct hisi_pmu;
struct hisi_uncore_ops {
@@ -68,13 +62,6 @@ struct hisi_uncore_ops {
    void (*disable_filter)(struct perf_event *event);
 };
-/* Describes the HISI PMU chip features information */
-struct hisi_pmu_dev_info {
-	const char *name;
-	const struct attribute_group **attr_groups;
-	void *present;
-};
-
 struct hisi_pmu_hwevents {
    struct perf_event *hw_events[HISI_MAX_COUNTERS];
    DECLARE_BITMAP(used_mask, HISI_MAX_COUNTERS);
@@ -85,7 +72,6 @@ struct hisi_pmu_hwevents {
 struct hisi_pmu {
    struct pmu pmu;
    const struct hisi_uncore_ops *ops;
-	const struct hisi_pmu_dev_info *dev_info;
    struct hisi_pmu_hwevents pmu_events;
    /* associated_cpus: All CPUs associated with the PMU */
    cpumask_t associated_cpus;
@@ -106,7 +92,7 @@ struct hisi_pmu {
    int counter_bits;
    /* check event code range */
    int check_event;
-	enum hisi_pmu_version identifier;
+	u32 identifier;
 };
int hisi_uncore_pmu_get_event_idx(struct perf_event *event);
@@ -136,22 +122,4 @@ int hisi_uncore_pmu_init_irq(struct hisi_pmu *hisi_pmu,
    		     struct platform_device *pdev);
void hisi_pmu_init(struct hisi_pmu *hisi_pmu, struct module *module);
-
-int hisi_uncore_pmu_ver2idx(struct hisi_pmu *pmu)
-{
-	int idx;
-
-	switch (pmu->identifier) {
-	case HISI_PMU_V1:
-		idx = 0; break;
-	case HISI_PMU_V2:
-		idx = 1; break;
-	case HISI_PMU_V3:
-	/* When running on later version, returns the largest supported version */
-	default:
-		idx = 2;
-	}
-
-	return idx;
-}
 #endif /* __HISI_UNCORE_PMU_H__ */
-- 
2.33.0


    

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[PATCH v2 OLK-5.10 2/4] Revert "drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver"