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authorLinus Torvalds <torvalds@linux-foundation.org>2016-02-01 02:38:27 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-02-01 02:38:27 +0300
commit29d14f083522e5bc762256f68227d267118946c8 (patch)
tree124ae23890efad2ac482f84d525779ed44329875 /arch
parentbbfb239a106d41d793f58befdaf5c806e34ea97e (diff)
parent28fb8a5b6e233fc384fb27f9f91f811b40ba9cf8 (diff)
downloadlinux-29d14f083522e5bc762256f68227d267118946c8.tar.xz
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner: "This is much bigger than typical fixes, but Peter found a category of races that spurred more fixes and more debugging enhancements. Work started before the merge window, but got finished only now. Aside of that this contains the usual small fixes to perf and tools. Nothing particular exciting" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) perf: Remove/simplify lockdep annotation perf: Synchronously clean up child events perf: Untangle 'owner' confusion perf: Add flags argument to perf_remove_from_context() perf: Clean up sync_child_event() perf: Robustify event->owner usage and SMP ordering perf: Fix STATE_EXIT usage perf: Update locking order perf: Remove __free_event() perf/bpf: Convert perf_event_array to use struct file perf: Fix NULL deref perf/x86: De-obfuscate code perf/x86: Fix uninitialized value usage perf: Fix race in perf_event_exit_task_context() perf: Fix orphan hole perf stat: Do not clean event's private stats perf hists: Fix HISTC_MEM_DCACHELINE width setting perf annotate browser: Fix behaviour of Shift-Tab with nothing focussed perf tests: Remove wrong semicolon in while loop in CQM test perf: Synchronously free aux pages in case of allocation failure ...
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel.c7
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_uncore.c3
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_uncore.h1
-rw-r--r--arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c20
4 files changed, 27 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index a667078a5180..fed2ab1f1065 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1960,7 +1960,8 @@ intel_bts_constraints(struct perf_event *event)
static int intel_alt_er(int idx, u64 config)
{
- int alt_idx;
+ int alt_idx = idx;
+
if (!(x86_pmu.flags & PMU_FL_HAS_RSP_1))
return idx;
@@ -2897,14 +2898,12 @@ static void intel_pmu_cpu_starting(int cpu)
return;
if (!(x86_pmu.flags & PMU_FL_NO_HT_SHARING)) {
- void **onln = &cpuc->kfree_on_online[X86_PERF_KFREE_SHARED];
-
for_each_cpu(i, topology_sibling_cpumask(cpu)) {
struct intel_shared_regs *pc;
pc = per_cpu(cpu_hw_events, i).shared_regs;
if (pc && pc->core_id == core_id) {
- *onln = cpuc->shared_regs;
+ cpuc->kfree_on_online[0] = cpuc->shared_regs;
cpuc->shared_regs = pc;
break;
}
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index f97f8075bf04..3bf41d413775 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -995,6 +995,9 @@ static int __init uncore_pci_init(void)
case 87: /* Knights Landing */
ret = knl_uncore_pci_init();
break;
+ case 94: /* SkyLake */
+ ret = skl_uncore_pci_init();
+ break;
default:
return 0;
}
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 07aa2d6bd710..a7086b862156 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -336,6 +336,7 @@ int snb_uncore_pci_init(void);
int ivb_uncore_pci_init(void);
int hsw_uncore_pci_init(void);
int bdw_uncore_pci_init(void);
+int skl_uncore_pci_init(void);
void snb_uncore_cpu_init(void);
void nhm_uncore_cpu_init(void);
int snb_pci2phy_map_init(int devid);
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
index 0b934820fafd..2bd030ddd0db 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c
@@ -8,6 +8,7 @@
#define PCI_DEVICE_ID_INTEL_HSW_IMC 0x0c00
#define PCI_DEVICE_ID_INTEL_HSW_U_IMC 0x0a04
#define PCI_DEVICE_ID_INTEL_BDW_IMC 0x1604
+#define PCI_DEVICE_ID_INTEL_SKL_IMC 0x191f
/* SNB event control */
#define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff
@@ -524,6 +525,14 @@ static const struct pci_device_id bdw_uncore_pci_ids[] = {
{ /* end: all zeroes */ },
};
+static const struct pci_device_id skl_uncore_pci_ids[] = {
+ { /* IMC */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_IMC),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
+ },
+ { /* end: all zeroes */ },
+};
+
static struct pci_driver snb_uncore_pci_driver = {
.name = "snb_uncore",
.id_table = snb_uncore_pci_ids,
@@ -544,6 +553,11 @@ static struct pci_driver bdw_uncore_pci_driver = {
.id_table = bdw_uncore_pci_ids,
};
+static struct pci_driver skl_uncore_pci_driver = {
+ .name = "skl_uncore",
+ .id_table = skl_uncore_pci_ids,
+};
+
struct imc_uncore_pci_dev {
__u32 pci_id;
struct pci_driver *driver;
@@ -558,6 +572,7 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core Processor */
IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core ULT Mobile Processor */
IMC_DEV(BDW_IMC, &bdw_uncore_pci_driver), /* 5th Gen Core U */
+ IMC_DEV(SKL_IMC, &skl_uncore_pci_driver), /* 6th Gen Core */
{ /* end marker */ }
};
@@ -610,6 +625,11 @@ int bdw_uncore_pci_init(void)
return imc_uncore_pci_init();
}
+int skl_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+
/* end of Sandy Bridge uncore support */
/* Nehalem uncore support */