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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-23 11:15:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-23 11:15:14 -0700
commitcea05c192b07b82a770816fc9d06031403cea164 (patch)
treedc8b209f433c16c6f7097a57d06d89d2328f9bcb
parent10c091b62e7fc3133d652b7212904348398b302e (diff)
parent24633d901ea44fe99bc9a2d01a3881fa097b78b3 (diff)
downloadlinux-cea05c192b07b82a770816fc9d06031403cea164.tar.bz2
Merge tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fix from Thomas Gleixner: "A single update for perf on x86 which has support for the broken down bandwith counters" * tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Add BW counters for GT, IA and IO breakdown
-rw-r--r--arch/x86/events/intel/uncore_snb.c52
1 files changed, 49 insertions, 3 deletions
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index cb94ba86efd2..6a4ca27b2c9e 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -390,6 +390,18 @@ static struct uncore_event_desc snb_uncore_imc_events[] = {
INTEL_UNCORE_EVENT_DESC(data_writes.scale, "6.103515625e-5"),
INTEL_UNCORE_EVENT_DESC(data_writes.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(gt_requests, "event=0x03"),
+ INTEL_UNCORE_EVENT_DESC(gt_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(gt_requests.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(ia_requests, "event=0x04"),
+ INTEL_UNCORE_EVENT_DESC(ia_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(ia_requests.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(io_requests, "event=0x05"),
+ INTEL_UNCORE_EVENT_DESC(io_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(io_requests.unit, "MiB"),
+
{ /* end: all zeroes */ },
};
@@ -405,13 +417,35 @@ static struct uncore_event_desc snb_uncore_imc_events[] = {
#define SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE 0x5054
#define SNB_UNCORE_PCI_IMC_CTR_BASE SNB_UNCORE_PCI_IMC_DATA_READS_BASE
+/* BW break down- legacy counters */
+#define SNB_UNCORE_PCI_IMC_GT_REQUESTS 0x3
+#define SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE 0x5040
+#define SNB_UNCORE_PCI_IMC_IA_REQUESTS 0x4
+#define SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE 0x5044
+#define SNB_UNCORE_PCI_IMC_IO_REQUESTS 0x5
+#define SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE 0x5048
+
enum perf_snb_uncore_imc_freerunning_types {
- SNB_PCI_UNCORE_IMC_DATA = 0,
+ SNB_PCI_UNCORE_IMC_DATA_READS = 0,
+ SNB_PCI_UNCORE_IMC_DATA_WRITES,
+ SNB_PCI_UNCORE_IMC_GT_REQUESTS,
+ SNB_PCI_UNCORE_IMC_IA_REQUESTS,
+ SNB_PCI_UNCORE_IMC_IO_REQUESTS,
+
SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
};
static struct freerunning_counters snb_uncore_imc_freerunning[] = {
- [SNB_PCI_UNCORE_IMC_DATA] = { SNB_UNCORE_PCI_IMC_DATA_READS_BASE, 0x4, 0x0, 2, 32 },
+ [SNB_PCI_UNCORE_IMC_DATA_READS] = { SNB_UNCORE_PCI_IMC_DATA_READS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_DATA_READS] = { SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_GT_REQUESTS] = { SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_IA_REQUESTS] = { SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_IO_REQUESTS] = { SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
};
static struct attribute *snb_uncore_imc_formats_attr[] = {
@@ -525,6 +559,18 @@ static int snb_uncore_imc_event_init(struct perf_event *event)
base = SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE;
idx = UNCORE_PMC_IDX_FREERUNNING;
break;
+ case SNB_UNCORE_PCI_IMC_GT_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_IA_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_IO_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
default:
return -EINVAL;
}
@@ -598,7 +644,7 @@ static struct intel_uncore_ops snb_uncore_imc_ops = {
static struct intel_uncore_type snb_uncore_imc = {
.name = "imc",
- .num_counters = 2,
+ .num_counters = 5,
.num_boxes = 1,
.num_freerunning_types = SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
.mmio_map_size = SNB_UNCORE_PCI_IMC_MAP_SIZE,