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Commit fd1ec259 authored by Yan, Zheng's avatar Yan, Zheng Committed by Ingo Molnar
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perf/x86/intel/uncore: Add filter support for QPI boxes 

The QPI uncore boxes have two pairs of MATCH/MASK registers that
user to filter packet traffic serviced by QPI link layer. These
registers are in auxiliary PCI devices.

This patch adds the auxiliary PCI devices to snbep_uncore_pci_ids
and adds field definitions for the MATCH/MASK registers.
Signed-off-by: default avatarYan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1375856245-10717-2-git-send-email-zheng.z.yan@intel.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 899396cf
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Showing with 123 additions and 18 deletions
arch/x86/kernel/cpu/perf_event_intel_uncore.c
View file @ fd1ec259
......@@ -47,6 +47,24 @@ DEFINE_UNCORE_FORMAT_ATTR(filter_band0, filter_band0, "config1:0-7");
DEFINE_UNCORE_FORMAT_ATTR(filter_band1, filter_band1, "config1:8-15");
DEFINE_UNCORE_FORMAT_ATTR(filter_band2, filter_band2, "config1:16-23");
DEFINE_UNCORE_FORMAT_ATTR(filter_band3, filter_band3, "config1:24-31");
DEFINE_UNCORE_FORMAT_ATTR(match_rds, match_rds, "config1:48-51");
DEFINE_UNCORE_FORMAT_ATTR(match_rnid30, match_rnid30, "config1:32-35");
DEFINE_UNCORE_FORMAT_ATTR(match_rnid4, match_rnid4, "config1:31");
DEFINE_UNCORE_FORMAT_ATTR(match_dnid, match_dnid, "config1:13-17");
DEFINE_UNCORE_FORMAT_ATTR(match_mc, match_mc, "config1:9-12");
DEFINE_UNCORE_FORMAT_ATTR(match_opc, match_opc, "config1:5-8");
DEFINE_UNCORE_FORMAT_ATTR(match_vnw, match_vnw, "config1:3-4");
DEFINE_UNCORE_FORMAT_ATTR(match0, match0, "config1:0-31");
DEFINE_UNCORE_FORMAT_ATTR(match1, match1, "config1:32-63");
DEFINE_UNCORE_FORMAT_ATTR(mask_rds, mask_rds, "config2:48-51");
DEFINE_UNCORE_FORMAT_ATTR(mask_rnid30, mask_rnid30, "config2:32-35");
DEFINE_UNCORE_FORMAT_ATTR(mask_rnid4, mask_rnid4, "config2:31");
DEFINE_UNCORE_FORMAT_ATTR(mask_dnid, mask_dnid, "config2:13-17");
DEFINE_UNCORE_FORMAT_ATTR(mask_mc, mask_mc, "config2:9-12");
DEFINE_UNCORE_FORMAT_ATTR(mask_opc, mask_opc, "config2:5-8");
DEFINE_UNCORE_FORMAT_ATTR(mask_vnw, mask_vnw, "config2:3-4");
DEFINE_UNCORE_FORMAT_ATTR(mask0, mask0, "config2:0-31");
DEFINE_UNCORE_FORMAT_ATTR(mask1, mask1, "config2:32-63");
static u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event)
{
......@@ -303,6 +321,24 @@ static struct attribute *snbep_uncore_qpi_formats_attr[] = {
&format_attr_edge.attr,
&format_attr_inv.attr,
&format_attr_thresh8.attr,
&format_attr_match_rds.attr,
&format_attr_match_rnid30.attr,
&format_attr_match_rnid4.attr,
&format_attr_match_dnid.attr,
&format_attr_match_mc.attr,
&format_attr_match_opc.attr,
&format_attr_match_vnw.attr,
&format_attr_match0.attr,
&format_attr_match1.attr,
&format_attr_mask_rds.attr,
&format_attr_mask_rnid30.attr,
&format_attr_mask_rnid4.attr,
&format_attr_mask_dnid.attr,
&format_attr_mask_mc.attr,
&format_attr_mask_opc.attr,
&format_attr_mask_vnw.attr,
&format_attr_mask0.attr,
&format_attr_mask1.attr,
NULL,
};
......@@ -358,13 +394,16 @@ static struct intel_uncore_ops snbep_uncore_msr_ops = {
SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
};
#define SNBEP_UNCORE_PCI_OPS_COMMON_INIT() \
.init_box = snbep_uncore_pci_init_box, \
.disable_box = snbep_uncore_pci_disable_box, \
.enable_box = snbep_uncore_pci_enable_box, \
.disable_event = snbep_uncore_pci_disable_event, \
.read_counter = snbep_uncore_pci_read_counter
static struct intel_uncore_ops snbep_uncore_pci_ops = {
.init_box = snbep_uncore_pci_init_box,
.disable_box = snbep_uncore_pci_disable_box,
.enable_box = snbep_uncore_pci_enable_box,
.disable_event = snbep_uncore_pci_disable_event,
.enable_event = snbep_uncore_pci_enable_event,
.read_counter = snbep_uncore_pci_read_counter,
SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
.enable_event = snbep_uncore_pci_enable_event, \
};
static struct event_constraint snbep_uncore_cbox_constraints[] = {
......@@ -728,6 +767,61 @@ static struct intel_uncore_type *snbep_msr_uncores[] = {
NULL,
};
enum {
SNBEP_PCI_QPI_PORT0_FILTER,
SNBEP_PCI_QPI_PORT1_FILTER,
};
static int snbep_qpi_hw_config(struct intel_uncore_box *box, struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
if ((hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK) == 0x38) {
reg1->idx = 0;
reg1->reg = SNBEP_Q_Py_PCI_PMON_PKT_MATCH0;
reg1->config = event->attr.config1;
reg2->reg = SNBEP_Q_Py_PCI_PMON_PKT_MASK0;
reg2->config = event->attr.config2;
}
return 0;
}
static void snbep_qpi_enable_event(struct intel_uncore_box *box, struct perf_event *event)
{
struct pci_dev *pdev = box->pci_dev;
struct hw_perf_event *hwc = &event->hw;
struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
if (reg1->idx != EXTRA_REG_NONE) {
int idx = box->pmu->pmu_idx + SNBEP_PCI_QPI_PORT0_FILTER;
struct pci_dev *filter_pdev = extra_pci_dev[box->phys_id][idx];
WARN_ON_ONCE(!filter_pdev);
if (filter_pdev) {
pci_write_config_dword(filter_pdev, reg1->reg,
(u32)reg1->config);
pci_write_config_dword(filter_pdev, reg1->reg + 4,
(u32)(reg1->config >> 32));
pci_write_config_dword(filter_pdev, reg2->reg,
(u32)reg2->config);
pci_write_config_dword(filter_pdev, reg2->reg + 4,
(u32)(reg2->config >> 32));
}
}
pci_write_config_dword(pdev, hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
}
static struct intel_uncore_ops snbep_uncore_qpi_ops = {
SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
.enable_event = snbep_qpi_enable_event,
.hw_config = snbep_qpi_hw_config,
.get_constraint = uncore_get_constraint,
.put_constraint = uncore_put_constraint,
};
#define SNBEP_UNCORE_PCI_COMMON_INIT() \
.perf_ctr = SNBEP_PCI_PMON_CTR0, \
.event_ctl = SNBEP_PCI_PMON_CTL0, \
......@@ -765,7 +859,8 @@ static struct intel_uncore_type snbep_uncore_qpi = {
.event_ctl = SNBEP_PCI_PMON_CTL0,
.event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
.box_ctl = SNBEP_PCI_PMON_BOX_CTL,
.ops = &snbep_uncore_pci_ops,
.num_shared_regs = 1,
.ops = &snbep_uncore_qpi_ops,
.event_descs = snbep_uncore_qpi_events,
.format_group = &snbep_uncore_qpi_format_group,
};
......@@ -847,6 +942,16 @@ static DEFINE_PCI_DEVICE_TABLE(snbep_uncore_pci_ids) = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1),
.driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 1),
},
{ /* QPI Port 0 filter */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3c86),
.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
SNBEP_PCI_QPI_PORT0_FILTER),
},
{ /* QPI Port 0 filter */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3c96),
.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
SNBEP_PCI_QPI_PORT1_FILTER),
},
{ /* end: all zeroes */ }
};
......
arch/x86/kernel/cpu/perf_event_intel_uncore.h
View file @ fd1ec259
......@@ -16,7 +16,7 @@
#define UNCORE_PCI_DEV_TYPE(data) ((data >> 8) & 0xff)
#define UNCORE_PCI_DEV_IDX(data) (data & 0xff)
#define UNCORE_EXTRA_PCI_DEV 0xff
#define UNCORE_EXTRA_PCI_DEV_MAX 0
#define UNCORE_EXTRA_PCI_DEV_MAX 2
/* support up to 8 sockets */
#define UNCORE_SOCKET_MAX 8
......
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