From: "Yan, Zheng" <[email protected]>
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 changes the meaning of (struct pci_device_id)->driver_data.
The first 8 bits are device index of the same uncore type, the second
8 bytes are uncore type index. Auxiliary PCI device's type is defined
as UNCORE_EXTRA_PCI_DEV(0xff)
Signed-off-by: Yan, Zheng <[email protected]>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 111 ++++++++++++++------------
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 9 +++
2 files changed, 68 insertions(+), 52 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index cad791d..7ce9b35 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -6,6 +6,8 @@ static struct intel_uncore_type **pci_uncores = empty_uncore;
/* pci bus to socket mapping */
static int pcibus_to_physid[256] = { [0 ... 255] = -1, };
+static struct pci_dev *extra_pci_dev[UNCORE_SOCKET_MAX][UNCORE_EXTRA_PCI_DEV_MAX];
+
static DEFINE_RAW_SPINLOCK(uncore_box_lock);
/* mask of cpus that collect uncore events */
@@ -807,43 +809,43 @@ static struct intel_uncore_type *snbep_pci_uncores[] = {
static DEFINE_PCI_DEVICE_TABLE(snbep_uncore_pci_ids) = {
{ /* Home Agent */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_HA),
- .driver_data = SNBEP_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_HA, 0),
},
{ /* MC Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC0),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 0),
},
{ /* MC Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC1),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 1),
},
{ /* MC Channel 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC2),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 2),
},
{ /* MC Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC3),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 3),
},
{ /* QPI Port 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI0),
- .driver_data = SNBEP_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 0),
},
{ /* QPI Port 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI1),
- .driver_data = SNBEP_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 1),
},
{ /* R2PCIe */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R2PCIE),
- .driver_data = SNBEP_PCI_UNCORE_R2PCIE,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R2PCIE, 0),
},
{ /* R3QPI Link 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI0),
- .driver_data = SNBEP_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 0),
},
{ /* R3QPI Link 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1),
- .driver_data = SNBEP_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 1),
},
{ /* end: all zeroes */ }
};
@@ -1256,71 +1258,71 @@ static struct intel_uncore_type *ivt_pci_uncores[] = {
static DEFINE_PCI_DEVICE_TABLE(ivt_uncore_pci_ids) = {
{ /* Home Agent 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe30),
- .driver_data = IVT_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_HA, 0),
},
{ /* Home Agent 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe38),
- .driver_data = IVT_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_HA, 1),
},
{ /* MC0 Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb4),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 0),
},
{ /* MC0 Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb5),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 1),
},
{ /* MC0 Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb0),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 2),
},
{ /* MC0 Channel 4 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb1),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 3),
},
{ /* MC1 Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef4),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 4),
},
{ /* MC1 Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef5),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 5),
},
{ /* MC1 Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef0),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 6),
},
{ /* MC1 Channel 4 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef1),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 7),
},
{ /* QPI0 Port 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe32),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 0),
},
{ /* QPI0 Port 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe33),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 1),
},
{ /* QPI1 Port 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3a),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 2),
},
{ /* R2PCIe */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe34),
- .driver_data = IVT_PCI_UNCORE_R2PCIE,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R2PCIE, 0),
},
{ /* R3QPI0 Link 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe36),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 0),
},
{ /* R3QPI0 Link 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe37),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 1),
},
{ /* R3QPI1 Link 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3e),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 2),
},
{ /* end: all zeroes */ }
};
@@ -3167,16 +3169,24 @@ static bool pcidrv_registered;
/*
* add a pci uncore device
*/
-static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
+static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
- int i, phys_id;
+ struct intel_uncore_type *type;
+ int phys_id;
phys_id = pcibus_to_physid[pdev->bus->number];
if (phys_id < 0)
return -ENODEV;
+ if (UNCORE_PCI_DEV_TYPE(id->driver_data) == UNCORE_EXTRA_PCI_DEV) {
+ extra_pci_dev[phys_id][UNCORE_PCI_DEV_IDX(id->driver_data)] = pdev;
+ pci_set_drvdata(pdev, NULL);
+ return 0;
+ }
+
+ type = pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
box = uncore_alloc_box(type, 0);
if (!box)
return -ENOMEM;
@@ -3185,21 +3195,11 @@ static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
* for performance monitoring unit with multiple boxes,
* each box has a different function id.
*/
- for (i = 0; i < type->num_boxes; i++) {
- pmu = &type->pmus[i];
- if (pmu->func_id == pdev->devfn)
- break;
- if (pmu->func_id < 0) {
- pmu->func_id = pdev->devfn;
- break;
- }
- pmu = NULL;
- }
-
- if (!pmu) {
- kfree(box);
- return -EINVAL;
- }
+ pmu = &type->pmus[UNCORE_PCI_DEV_IDX(id->driver_data)];
+ if (pmu->func_id < 0)
+ pmu->func_id = pdev->devfn;
+ else
+ WARN_ON_ONCE(pmu->func_id != pdev->devfn);
box->phys_id = phys_id;
box->pci_dev = pdev;
@@ -3217,9 +3217,22 @@ static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
static void uncore_pci_remove(struct pci_dev *pdev)
{
struct intel_uncore_box *box = pci_get_drvdata(pdev);
- struct intel_uncore_pmu *pmu = box->pmu;
- int cpu, phys_id = pcibus_to_physid[pdev->bus->number];
+ struct intel_uncore_pmu *pmu;
+ int i, cpu, phys_id = pcibus_to_physid[pdev->bus->number];
+ box = pci_get_drvdata(pdev);
+ if (!box) {
+ for (i = 0; i < UNCORE_EXTRA_PCI_DEV_MAX; i++) {
+ if (extra_pci_dev[phys_id][i] == pdev) {
+ extra_pci_dev[phys_id][i] = NULL;
+ break;
+ }
+ }
+ WARN_ON_ONCE(i >= UNCORE_EXTRA_PCI_DEV_MAX);
+ return;
+ }
+
+ pmu = box->pmu;
if (WARN_ON_ONCE(phys_id != box->phys_id))
return;
@@ -3240,12 +3253,6 @@ static void uncore_pci_remove(struct pci_dev *pdev)
kfree(box);
}
-static int uncore_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
-{
- return uncore_pci_add(pci_uncores[id->driver_data], pdev);
-}
-
static int __init uncore_pci_init(void)
{
int ret;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 47b3d00..ede5a8c 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -12,6 +12,15 @@
#define UNCORE_PMC_IDX_FIXED UNCORE_PMC_IDX_MAX_GENERIC
#define UNCORE_PMC_IDX_MAX (UNCORE_PMC_IDX_FIXED + 1)
+#define UNCORE_PCI_DEV_DATA(type, idx) ((type << 8) | idx)
+#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
+
+/* support up to 8 sockets */
+#define UNCORE_SOCKET_MAX 8
+
#define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
/* SNB event control */
--
1.8.1.4
From: "Yan, Zheng" <[email protected]>
PCU uncore event control register has a undocumented ev_sel_ext bit.
The bit is needed by Andi's pmu-tools.
Signed-off-by: Yan, Zheng <[email protected]>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +-
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 6b8b9c9..e9696d8 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -301,7 +301,7 @@ static struct attribute *snbep_uncore_cbox_formats_attr[] = {
};
static struct attribute *snbep_uncore_pcu_formats_attr[] = {
- &format_attr_event.attr,
+ &format_attr_event_ext.attr,
&format_attr_occ_sel.attr,
&format_attr_edge.attr,
&format_attr_inv.attr,
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 628500e..a80ab71 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -117,6 +117,7 @@
(SNBEP_PMON_CTL_EV_SEL_MASK | \
SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_EV_SEL_EXT | \
SNBEP_PMON_CTL_INVERT | \
SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
--
1.8.1.4
From: "Yan, Zheng" <[email protected]>
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: Yan, Zheng <[email protected]>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 139 ++++++++++++++++++++++----
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 2 +-
2 files changed, 123 insertions(+), 18 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 7ce9b35..6b8b9c9 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -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, \
@@ -757,17 +851,18 @@ static struct intel_uncore_type snbep_uncore_imc = {
};
static struct intel_uncore_type snbep_uncore_qpi = {
- .name = "qpi",
- .num_counters = 4,
- .num_boxes = 2,
- .perf_ctr_bits = 48,
- .perf_ctr = SNBEP_PCI_PMON_CTR0,
- .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,
- .event_descs = snbep_uncore_qpi_events,
- .format_group = &snbep_uncore_qpi_format_group,
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .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 */ }
};
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index ede5a8c..628500e 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -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
--
1.8.1.4
On Wed, Aug 7, 2013 at 8:17 AM, Yan, Zheng <[email protected]> wrote:
>
> From: "Yan, Zheng" <[email protected]>
>
> PCU uncore event control register has a undocumented ev_sel_ext bit.
> The bit is needed by Andi's pmu-tools.
>
> Signed-off-by: Yan, Zheng <[email protected]>
Works for me. Is also needed by libpfm4 uncore PCU events.
Now results make more sense. Please apply.
Reviewed-by: Stephane Eranian <[email protected]>
>
> ---
> arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +-
> arch/x86/kernel/cpu/perf_event_intel_uncore.h | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
> index 6b8b9c9..e9696d8 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
> +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
> @@ -301,7 +301,7 @@ static struct attribute *snbep_uncore_cbox_formats_attr[] = {
> };
>
> static struct attribute *snbep_uncore_pcu_formats_attr[] = {
> - &format_attr_event.attr,
> + &format_attr_event_ext.attr,
> &format_attr_occ_sel.attr,
> &format_attr_edge.attr,
> &format_attr_inv.attr,
> diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
> index 628500e..a80ab71 100644
> --- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
> +++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
> @@ -117,6 +117,7 @@
> (SNBEP_PMON_CTL_EV_SEL_MASK | \
> SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
> SNBEP_PMON_CTL_EDGE_DET | \
> + SNBEP_PMON_CTL_EV_SEL_EXT | \
> SNBEP_PMON_CTL_INVERT | \
> SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
> SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
> --
> 1.8.1.4
>
On Wed, Aug 07, 2013 at 02:17:25PM +0800, Yan, Zheng wrote:
> From: "Yan, Zheng" <[email protected]>
>
> PCU uncore event control register has a undocumented ev_sel_ext bit.
> The bit is needed by Andi's pmu-tools.
Please provide documentation. Andi needing it isn't a good changelog (or
even reason).
On Fri, Aug 09, 2013 at 11:53:53AM +0200, Stephane Eranian wrote:
> On Wed, Aug 7, 2013 at 8:17 AM, Yan, Zheng <[email protected]> wrote:
> >
> > From: "Yan, Zheng" <[email protected]>
> >
> > PCU uncore event control register has a undocumented ev_sel_ext bit.
> > The bit is needed by Andi's pmu-tools.
> >
> > Signed-off-by: Yan, Zheng <[email protected]>
>
>
> Works for me. Is also needed by libpfm4 uncore PCU events.
> Now results make more sense. Please apply.
>
> Reviewed-by: Stephane Eranian <[email protected]>
Seriously guys; how am I going to justify merging a changelog that
reads: Provides magic bit to sprinkle fairy dust; required by $people. ?
On Mon, Aug 12, 2013 at 05:16:32PM +0200, Peter Zijlstra wrote:
> On Wed, Aug 07, 2013 at 02:17:25PM +0800, Yan, Zheng wrote:
> > From: "Yan, Zheng" <[email protected]>
> >
> > PCU uncore event control register has a undocumented ev_sel_ext bit.
> > The bit is needed by Andi's pmu-tools.
>
> Please provide documentation. Andi needing it isn't a good changelog (or
> even reason).
The bit is in the uncore guide, just not in the register documentation,
but in the event descriptions.
e.g. the PCU part calls it "Extra Select Bit"
-Andi
--
[email protected] -- Speaking for myself only
Hi,
How about:
This patch adds support for the SNB-EP PCU uncore PMU extra_sel_bit
(bit 21) which is
missing from the documentation in Table-2.75 of Intel® Xeon® Processor
E5-2600 Product Family
Uncore Performance Monitoring Guide. It is referred to later in
Table-2.81. Without this
selection bit explicitly enabled by the kernel, some events such as
COREx_TRANSITION_CYCLES do not count correctly.
On Mon, Aug 12, 2013 at 5:29 PM, Andi Kleen <[email protected]> wrote:
> On Mon, Aug 12, 2013 at 05:16:32PM +0200, Peter Zijlstra wrote:
>> On Wed, Aug 07, 2013 at 02:17:25PM +0800, Yan, Zheng wrote:
>> > From: "Yan, Zheng" <[email protected]>
>> >
>> > PCU uncore event control register has a undocumented ev_sel_ext bit.
>> > The bit is needed by Andi's pmu-tools.
>>
>> Please provide documentation. Andi needing it isn't a good changelog (or
>> even reason).
>
> The bit is in the uncore guide, just not in the register documentation,
> but in the event descriptions.
>
> e.g. the PCU part calls it "Extra Select Bit"
>
> -Andi
>
> --
> [email protected] -- Speaking for myself only
Commit-ID: 899396cf7b4b31e08be358411ad5c0c066069ebc
Gitweb: http://git.kernel.org/tip/899396cf7b4b31e08be358411ad5c0c066069ebc
Author: Yan, Zheng <[email protected]>
AuthorDate: Wed, 7 Aug 2013 14:17:23 +0800
Committer: Ingo Molnar <[email protected]>
CommitDate: Fri, 16 Aug 2013 17:55:48 +0200
perf/x86/intel/uncore: Add auxiliary pci device support
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 changes the meaning of (struct pci_device_id)->driver_data.
The first 8 bits are device index of the same uncore type, the second
8 bytes are uncore type index. Auxiliary PCI device's type is defined
as UNCORE_EXTRA_PCI_DEV(0xff)
Signed-off-by: Yan, Zheng <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 111 ++++++++++++++------------
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 9 +++
2 files changed, 68 insertions(+), 52 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index cad791d..7ce9b35 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -6,6 +6,8 @@ static struct intel_uncore_type **pci_uncores = empty_uncore;
/* pci bus to socket mapping */
static int pcibus_to_physid[256] = { [0 ... 255] = -1, };
+static struct pci_dev *extra_pci_dev[UNCORE_SOCKET_MAX][UNCORE_EXTRA_PCI_DEV_MAX];
+
static DEFINE_RAW_SPINLOCK(uncore_box_lock);
/* mask of cpus that collect uncore events */
@@ -807,43 +809,43 @@ static struct intel_uncore_type *snbep_pci_uncores[] = {
static DEFINE_PCI_DEVICE_TABLE(snbep_uncore_pci_ids) = {
{ /* Home Agent */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_HA),
- .driver_data = SNBEP_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_HA, 0),
},
{ /* MC Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC0),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 0),
},
{ /* MC Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC1),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 1),
},
{ /* MC Channel 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC2),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 2),
},
{ /* MC Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC3),
- .driver_data = SNBEP_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 3),
},
{ /* QPI Port 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI0),
- .driver_data = SNBEP_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 0),
},
{ /* QPI Port 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI1),
- .driver_data = SNBEP_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 1),
},
{ /* R2PCIe */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R2PCIE),
- .driver_data = SNBEP_PCI_UNCORE_R2PCIE,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R2PCIE, 0),
},
{ /* R3QPI Link 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI0),
- .driver_data = SNBEP_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 0),
},
{ /* R3QPI Link 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1),
- .driver_data = SNBEP_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 1),
},
{ /* end: all zeroes */ }
};
@@ -1256,71 +1258,71 @@ static struct intel_uncore_type *ivt_pci_uncores[] = {
static DEFINE_PCI_DEVICE_TABLE(ivt_uncore_pci_ids) = {
{ /* Home Agent 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe30),
- .driver_data = IVT_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_HA, 0),
},
{ /* Home Agent 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe38),
- .driver_data = IVT_PCI_UNCORE_HA,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_HA, 1),
},
{ /* MC0 Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb4),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 0),
},
{ /* MC0 Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb5),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 1),
},
{ /* MC0 Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb0),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 2),
},
{ /* MC0 Channel 4 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb1),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 3),
},
{ /* MC1 Channel 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef4),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 4),
},
{ /* MC1 Channel 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef5),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 5),
},
{ /* MC1 Channel 3 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef0),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 6),
},
{ /* MC1 Channel 4 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef1),
- .driver_data = IVT_PCI_UNCORE_IMC,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 7),
},
{ /* QPI0 Port 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe32),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 0),
},
{ /* QPI0 Port 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe33),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 1),
},
{ /* QPI1 Port 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3a),
- .driver_data = IVT_PCI_UNCORE_QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 2),
},
{ /* R2PCIe */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe34),
- .driver_data = IVT_PCI_UNCORE_R2PCIE,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R2PCIE, 0),
},
{ /* R3QPI0 Link 0 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe36),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 0),
},
{ /* R3QPI0 Link 1 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe37),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 1),
},
{ /* R3QPI1 Link 2 */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3e),
- .driver_data = IVT_PCI_UNCORE_R3QPI,
+ .driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 2),
},
{ /* end: all zeroes */ }
};
@@ -3167,16 +3169,24 @@ static bool pcidrv_registered;
/*
* add a pci uncore device
*/
-static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
+static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
- int i, phys_id;
+ struct intel_uncore_type *type;
+ int phys_id;
phys_id = pcibus_to_physid[pdev->bus->number];
if (phys_id < 0)
return -ENODEV;
+ if (UNCORE_PCI_DEV_TYPE(id->driver_data) == UNCORE_EXTRA_PCI_DEV) {
+ extra_pci_dev[phys_id][UNCORE_PCI_DEV_IDX(id->driver_data)] = pdev;
+ pci_set_drvdata(pdev, NULL);
+ return 0;
+ }
+
+ type = pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
box = uncore_alloc_box(type, 0);
if (!box)
return -ENOMEM;
@@ -3185,21 +3195,11 @@ static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
* for performance monitoring unit with multiple boxes,
* each box has a different function id.
*/
- for (i = 0; i < type->num_boxes; i++) {
- pmu = &type->pmus[i];
- if (pmu->func_id == pdev->devfn)
- break;
- if (pmu->func_id < 0) {
- pmu->func_id = pdev->devfn;
- break;
- }
- pmu = NULL;
- }
-
- if (!pmu) {
- kfree(box);
- return -EINVAL;
- }
+ pmu = &type->pmus[UNCORE_PCI_DEV_IDX(id->driver_data)];
+ if (pmu->func_id < 0)
+ pmu->func_id = pdev->devfn;
+ else
+ WARN_ON_ONCE(pmu->func_id != pdev->devfn);
box->phys_id = phys_id;
box->pci_dev = pdev;
@@ -3217,9 +3217,22 @@ static int uncore_pci_add(struct intel_uncore_type *type, struct pci_dev *pdev)
static void uncore_pci_remove(struct pci_dev *pdev)
{
struct intel_uncore_box *box = pci_get_drvdata(pdev);
- struct intel_uncore_pmu *pmu = box->pmu;
- int cpu, phys_id = pcibus_to_physid[pdev->bus->number];
+ struct intel_uncore_pmu *pmu;
+ int i, cpu, phys_id = pcibus_to_physid[pdev->bus->number];
+ box = pci_get_drvdata(pdev);
+ if (!box) {
+ for (i = 0; i < UNCORE_EXTRA_PCI_DEV_MAX; i++) {
+ if (extra_pci_dev[phys_id][i] == pdev) {
+ extra_pci_dev[phys_id][i] = NULL;
+ break;
+ }
+ }
+ WARN_ON_ONCE(i >= UNCORE_EXTRA_PCI_DEV_MAX);
+ return;
+ }
+
+ pmu = box->pmu;
if (WARN_ON_ONCE(phys_id != box->phys_id))
return;
@@ -3240,12 +3253,6 @@ static void uncore_pci_remove(struct pci_dev *pdev)
kfree(box);
}
-static int uncore_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *id)
-{
- return uncore_pci_add(pci_uncores[id->driver_data], pdev);
-}
-
static int __init uncore_pci_init(void)
{
int ret;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 47b3d00..ede5a8c 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -12,6 +12,15 @@
#define UNCORE_PMC_IDX_FIXED UNCORE_PMC_IDX_MAX_GENERIC
#define UNCORE_PMC_IDX_MAX (UNCORE_PMC_IDX_FIXED + 1)
+#define UNCORE_PCI_DEV_DATA(type, idx) ((type << 8) | idx)
+#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
+
+/* support up to 8 sockets */
+#define UNCORE_SOCKET_MAX 8
+
#define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
/* SNB event control */
Commit-ID: fd1ec259ba814f0ef35dc8ae2cbd0844541b917d
Gitweb: http://git.kernel.org/tip/fd1ec259ba814f0ef35dc8ae2cbd0844541b917d
Author: Yan, Zheng <[email protected]>
AuthorDate: Wed, 7 Aug 2013 14:17:24 +0800
Committer: Ingo Molnar <[email protected]>
CommitDate: Fri, 16 Aug 2013 17:55:49 +0200
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: Yan, Zheng <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
arch/x86/kernel/cpu/perf_event_intel_uncore.c | 139 ++++++++++++++++++++++----
arch/x86/kernel/cpu/perf_event_intel_uncore.h | 2 +-
2 files changed, 123 insertions(+), 18 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 7ce9b35..6b8b9c9 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -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, \
@@ -757,17 +851,18 @@ static struct intel_uncore_type snbep_uncore_imc = {
};
static struct intel_uncore_type snbep_uncore_qpi = {
- .name = "qpi",
- .num_counters = 4,
- .num_boxes = 2,
- .perf_ctr_bits = 48,
- .perf_ctr = SNBEP_PCI_PMON_CTR0,
- .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,
- .event_descs = snbep_uncore_qpi_events,
- .format_group = &snbep_uncore_qpi_format_group,
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .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 */ }
};
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index ede5a8c..628500e 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -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