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drivers/perf: hisi: Add new functions for HHA PMU

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On HiSilicon Hip09 platform, some new functions are also supported on
HHA PMU.

* tracetag_en: it is the abbreviation of tracetag enable and allows user
to count events according to tt_req or tt_core set in L3C PMU.

* datasrc_skt: it is the abbreviation of data source from another
socket and it is used in the multi-chips. It's the same as L3C PMU.

* srcid_cmd & srcid_msk: pair of the fields are used to filter
statistics that come from the specific CCL/ICL by the configuration.
These are the abbreviation of source ID command and mask. The source
ID is 11-bit and detailed descriptions are documented in
Documentation/admin-guide/perf/hisi-pmu.rst.

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Co-developed-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Link: https://lore.kernel.org/r/1615186237-22263-6-git-send-email-zhangshaokun@hisilicon.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Shaokun Zhang 2021-03-08 14:50:33 +08:00 committed by Will Deacon
parent 486a7f46b9
commit 932f6a99f9
1 changed files with 188 additions and 15 deletions
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203
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
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@ -25,19 +25,136 @@
#define HHA_VERSION 0x1cf0
#define HHA_PERF_CTRL 0x1E00
#define HHA_EVENT_CTRL 0x1E04
#define HHA_SRCID_CTRL 0x1E08
#define HHA_DATSRC_CTRL 0x1BF0
#define HHA_EVENT_TYPE0 0x1E80
/*
* Each counter is 48-bits and [48:63] are reserved
* which are Read-As-Zero and Writes-Ignored.
* If the HW version only supports a 48-bit counter, then
* bits [63:48] are reserved, which are Read-As-Zero and
* Writes-Ignored.
*/
#define HHA_CNT0_LOWER 0x1F00
/* HHA has 16-counters */
/* HHA PMU v1 has 16 counters and v2 only has 8 counters */
#define HHA_V1_NR_COUNTERS 0x10
#define HHA_V2_NR_COUNTERS 0x8
#define HHA_PERF_CTRL_EN 0x1
#define HHA_TRACETAG_EN BIT(31)
#define HHA_SRCID_EN BIT(2)
#define HHA_SRCID_CMD_SHIFT 6
#define HHA_SRCID_MSK_SHIFT 20
#define HHA_SRCID_CMD GENMASK(16, 6)
#define HHA_SRCID_MSK GENMASK(30, 20)
#define HHA_DATSRC_SKT_EN BIT(23)
#define HHA_EVTYPE_NONE 0xff
#define HHA_V1_NR_EVENT 0x65
#define HHA_V2_NR_EVENT 0xCE
HISI_PMU_EVENT_ATTR_EXTRACTOR(srcid_cmd, config1, 10, 0);
HISI_PMU_EVENT_ATTR_EXTRACTOR(srcid_msk, config1, 21, 11);
HISI_PMU_EVENT_ATTR_EXTRACTOR(tracetag_en, config1, 22, 22);
HISI_PMU_EVENT_ATTR_EXTRACTOR(datasrc_skt, config1, 23, 23);
static void hisi_hha_pmu_enable_tracetag(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 tt_en = hisi_get_tracetag_en(event);
if (tt_en) {
u32 val;
val = readl(hha_pmu->base + HHA_SRCID_CTRL);
val |= HHA_TRACETAG_EN;
writel(val, hha_pmu->base + HHA_SRCID_CTRL);
}
}
static void hisi_hha_pmu_clear_tracetag(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 val;
val = readl(hha_pmu->base + HHA_SRCID_CTRL);
val &= ~HHA_TRACETAG_EN;
writel(val, hha_pmu->base + HHA_SRCID_CTRL);
}
static void hisi_hha_pmu_config_ds(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 ds_skt = hisi_get_datasrc_skt(event);
if (ds_skt) {
u32 val;
val = readl(hha_pmu->base + HHA_DATSRC_CTRL);
val |= HHA_DATSRC_SKT_EN;
writel(ds_skt, hha_pmu->base + HHA_DATSRC_CTRL);
}
}
static void hisi_hha_pmu_clear_ds(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 ds_skt = hisi_get_datasrc_skt(event);
if (ds_skt) {
u32 val;
val = readl(hha_pmu->base + HHA_DATSRC_CTRL);
val &= ~HHA_DATSRC_SKT_EN;
writel(ds_skt, hha_pmu->base + HHA_DATSRC_CTRL);
}
}
static void hisi_hha_pmu_config_srcid(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 cmd = hisi_get_srcid_cmd(event);
if (cmd) {
u32 val, msk;
msk = hisi_get_srcid_msk(event);
val = readl(hha_pmu->base + HHA_SRCID_CTRL);
val |= HHA_SRCID_EN | (cmd << HHA_SRCID_CMD_SHIFT) |
(msk << HHA_SRCID_MSK_SHIFT);
writel(val, hha_pmu->base + HHA_SRCID_CTRL);
}
}
static void hisi_hha_pmu_disable_srcid(struct perf_event *event)
{
struct hisi_pmu *hha_pmu = to_hisi_pmu(event->pmu);
u32 cmd = hisi_get_srcid_cmd(event);
if (cmd) {
u32 val;
val = readl(hha_pmu->base + HHA_SRCID_CTRL);
val &= ~(HHA_SRCID_EN | HHA_SRCID_MSK | HHA_SRCID_CMD);
writel(val, hha_pmu->base + HHA_SRCID_CTRL);
}
}
static void hisi_hha_pmu_enable_filter(struct perf_event *event)
{
if (event->attr.config1 != 0x0) {
hisi_hha_pmu_enable_tracetag(event);
hisi_hha_pmu_config_ds(event);
hisi_hha_pmu_config_srcid(event);
}
}
static void hisi_hha_pmu_disable_filter(struct perf_event *event)
{
if (event->attr.config1 != 0x0) {
hisi_hha_pmu_disable_srcid(event);
hisi_hha_pmu_clear_ds(event);
hisi_hha_pmu_clear_tracetag(event);
}
}
/*
* Select the counter register offset using the counter index
@ -167,7 +284,8 @@ static void hisi_hha_pmu_clear_int_status(struct hisi_pmu *hha_pmu, int idx)
static const struct acpi_device_id hisi_hha_pmu_acpi_match[] = {
{ "HISI0243", },
{},
{ "HISI0244", },
{}
};
MODULE_DEVICE_TABLE(acpi, hisi_hha_pmu_acpi_match);
@ -177,13 +295,6 @@ static int hisi_hha_pmu_init_data(struct platform_device *pdev,
unsigned long long id;
acpi_status status;
status = acpi_evaluate_integer(ACPI_HANDLE(&pdev->dev),
"_UID", NULL, &id);
if (ACPI_FAILURE(status))
return -EINVAL;
hha_pmu->index_id = id;
/*
* Use SCCL_ID and UID to identify the HHA PMU, while
* SCCL_ID is in MPIDR[aff2].
@ -193,6 +304,22 @@ static int hisi_hha_pmu_init_data(struct platform_device *pdev,
dev_err(&pdev->dev, "Can not read hha sccl-id!\n");
return -EINVAL;
}
/*
* Early versions of BIOS support _UID by mistake, so we support
* both "hisilicon, idx-id" as preference, if available.
*/
if (device_property_read_u32(&pdev->dev, "hisilicon,idx-id",
&hha_pmu->index_id)) {
status = acpi_evaluate_integer(ACPI_HANDLE(&pdev->dev),
"_UID", NULL, &id);
if (ACPI_FAILURE(status)) {
dev_err(&pdev->dev, "Cannot read idx-id!\n");
return -EINVAL;
}
hha_pmu->index_id = id;
}
/* HHA PMUs only share the same SCCL */
hha_pmu->ccl_id = -1;
@ -217,6 +344,20 @@ static const struct attribute_group hisi_hha_pmu_v1_format_group = {
.attrs = hisi_hha_pmu_v1_format_attr,
};
static struct attribute *hisi_hha_pmu_v2_format_attr[] = {
HISI_PMU_FORMAT_ATTR(event, "config:0-7"),
HISI_PMU_FORMAT_ATTR(srcid_cmd, "config1:0-10"),
HISI_PMU_FORMAT_ATTR(srcid_msk, "config1:11-21"),
HISI_PMU_FORMAT_ATTR(tracetag_en, "config1:22"),
HISI_PMU_FORMAT_ATTR(datasrc_skt, "config1:23"),
NULL
};
static const struct attribute_group hisi_hha_pmu_v2_format_group = {
.name = "format",
.attrs = hisi_hha_pmu_v2_format_attr,
};
static struct attribute *hisi_hha_pmu_v1_events_attr[] = {
HISI_PMU_EVENT_ATTR(rx_ops_num, 0x00),
HISI_PMU_EVENT_ATTR(rx_outer, 0x01),
@ -252,6 +393,20 @@ static const struct attribute_group hisi_hha_pmu_v1_events_group = {
.attrs = hisi_hha_pmu_v1_events_attr,
};
static struct attribute *hisi_hha_pmu_v2_events_attr[] = {
HISI_PMU_EVENT_ATTR(rx_ops_num, 0x00),
HISI_PMU_EVENT_ATTR(rx_outer, 0x01),
HISI_PMU_EVENT_ATTR(rx_sccl, 0x02),
HISI_PMU_EVENT_ATTR(hha_retry, 0x2e),
HISI_PMU_EVENT_ATTR(cycles, 0x55),
NULL
};
static const struct attribute_group hisi_hha_pmu_v2_events_group = {
.name = "events",
.attrs = hisi_hha_pmu_v2_events_attr,
};
static DEVICE_ATTR(cpumask, 0444, hisi_cpumask_sysfs_show, NULL);
static struct attribute *hisi_hha_pmu_cpumask_attrs[] = {
@ -283,6 +438,14 @@ static const struct attribute_group *hisi_hha_pmu_v1_attr_groups[] = {
NULL,
};
static const struct attribute_group *hisi_hha_pmu_v2_attr_groups[] = {
&hisi_hha_pmu_v2_format_group,
&hisi_hha_pmu_v2_events_group,
&hisi_hha_pmu_cpumask_attr_group,
&hisi_hha_pmu_identifier_group,
NULL
};
static const struct hisi_uncore_ops hisi_uncore_hha_ops = {
.write_evtype = hisi_hha_pmu_write_evtype,
.get_event_idx = hisi_uncore_pmu_get_event_idx,
@ -296,6 +459,8 @@ static const struct hisi_uncore_ops hisi_uncore_hha_ops = {
.read_counter = hisi_hha_pmu_read_counter,
.get_int_status = hisi_hha_pmu_get_int_status,
.clear_int_status = hisi_hha_pmu_clear_int_status,
.enable_filter = hisi_hha_pmu_enable_filter,
.disable_filter = hisi_hha_pmu_disable_filter,
};
static int hisi_hha_pmu_dev_probe(struct platform_device *pdev,
@ -311,12 +476,20 @@ static int hisi_hha_pmu_dev_probe(struct platform_device *pdev,
if (ret)
return ret;
hha_pmu->num_counters = HHA_V1_NR_COUNTERS;
hha_pmu->counter_bits = 48;
if (hha_pmu->identifier >= HISI_PMU_V2) {
hha_pmu->counter_bits = 64;
hha_pmu->check_event = HHA_V2_NR_EVENT;
hha_pmu->pmu_events.attr_groups = hisi_hha_pmu_v2_attr_groups;
hha_pmu->num_counters = HHA_V2_NR_COUNTERS;
} else {
hha_pmu->counter_bits = 48;
hha_pmu->check_event = HHA_V1_NR_EVENT;
hha_pmu->pmu_events.attr_groups = hisi_hha_pmu_v1_attr_groups;
hha_pmu->num_counters = HHA_V1_NR_COUNTERS;
}
hha_pmu->ops = &hisi_uncore_hha_ops;
hha_pmu->dev = &pdev->dev;
hha_pmu->on_cpu = -1;
hha_pmu->check_event = HHA_V1_NR_EVENT;
return 0;
}
@ -358,7 +531,7 @@ static int hisi_hha_pmu_probe(struct platform_device *pdev)
.start = hisi_uncore_pmu_start,
.stop = hisi_uncore_pmu_stop,
.read = hisi_uncore_pmu_read,
.attr_groups = hisi_hha_pmu_v1_attr_groups,
.attr_groups = hha_pmu->pmu_events.attr_groups,
.capabilities = PERF_PMU_CAP_NO_EXCLUDE,
};