Merge branch 'for-next/perf' into for-next/core

* for-next/perf: (24 commits)
  KVM: arm64: Ensure CPU PMU probes before pKVM host de-privilege
  drivers/perf: hisi: add NULL check for name
  drivers/perf: hisi: Remove redundant initialized of pmu->name
  perf/arm-cmn: Fix port detection for CMN-700
  arm64: pmuv3: dynamically map PERF_COUNT_HW_BRANCH_INSTRUCTIONS
  perf/arm-cmn: Validate cycles events fully
  Revert "ARM: mach-virt: Select PMUv3 driver by default"
  drivers/perf: apple_m1: Add Apple M2 support
  dt-bindings: arm-pmu: Add PMU compatible strings for Apple M2 cores
  perf: arm_cspmu: Fix variable dereference warning
  perf/amlogic: Fix config1/config2 parsing issue
  drivers/perf: Use devm_platform_get_and_ioremap_resource()
  kbuild, drivers/perf: remove MODULE_LICENSE in non-modules
  perf: qcom: Use devm_platform_get_and_ioremap_resource()
  perf: arm: Use devm_platform_get_and_ioremap_resource()
  perf/arm-cmn: Move overlapping wp_combine field
  ARM: mach-virt: Select PMUv3 driver by default
  ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM
  ARM: Make CONFIG_CPU_V7 valid for 32bit ARMv8 implementations
  perf: pmuv3: Change GENMASK to GENMASK_ULL
  ...

2 files changed, 0 insertions, 1468 deletions

diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index ceba6792f5b3..7c2bb4e72476 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -45,7 +45,6 @@ obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o entry-ftrace.o
 obj-$(CONFIG_MODULES)			+= module.o
 obj-$(CONFIG_ARM64_MODULE_PLTS)		+= module-plts.o
 obj-$(CONFIG_PERF_EVENTS)		+= perf_regs.o perf_callchain.o
-obj-$(CONFIG_HW_PERF_EVENTS)		+= perf_event.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= hw_breakpoint.o
 obj-$(CONFIG_CPU_PM)			+= sleep.o suspend.o
 obj-$(CONFIG_CPU_IDLE)			+= cpuidle.o
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
deleted file mode 100644
index dde06c0f97f3..000000000000
--- a/arch/arm64/kernel/perf_event.c
+++ /dev/null
@@ -1,1467 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * ARMv8 PMUv3 Performance Events handling code.
- *
- * Copyright (C) 2012 ARM Limited
- * Author: Will Deacon <will.deacon@arm.com>
- *
- * This code is based heavily on the ARMv7 perf event code.
- */
-
-#include <asm/irq_regs.h>
-#include <asm/perf_event.h>
-#include <asm/sysreg.h>
-#include <asm/virt.h>
-
-#include <clocksource/arm_arch_timer.h>
-
-#include <linux/acpi.h>
-#include <linux/clocksource.h>
-#include <linux/kvm_host.h>
-#include <linux/of.h>
-#include <linux/perf/arm_pmu.h>
-#include <linux/platform_device.h>
-#include <linux/sched_clock.h>
-#include <linux/smp.h>
-
-/* ARMv8 Cortex-A53 specific event types. */
-#define ARMV8_A53_PERFCTR_PREF_LINEFILL				0xC2
-
-/* ARMv8 Cavium ThunderX specific event types. */
-#define ARMV8_THUNDER_PERFCTR_L1D_CACHE_MISS_ST			0xE9
-#define ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_ACCESS		0xEA
-#define ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_MISS		0xEB
-#define ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_ACCESS		0xEC
-#define ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_MISS		0xED
-
-/*
- * ARMv8 Architectural defined events, not all of these may
- * be supported on any given implementation. Unsupported events will
- * be disabled at run-time based on the PMCEID registers.
- */
-static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
-	PERF_MAP_ALL_UNSUPPORTED,
-	[PERF_COUNT_HW_CPU_CYCLES]		= ARMV8_PMUV3_PERFCTR_CPU_CYCLES,
-	[PERF_COUNT_HW_INSTRUCTIONS]		= ARMV8_PMUV3_PERFCTR_INST_RETIRED,
-	[PERF_COUNT_HW_CACHE_REFERENCES]	= ARMV8_PMUV3_PERFCTR_L1D_CACHE,
-	[PERF_COUNT_HW_CACHE_MISSES]		= ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
-	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS]	= ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED,
-	[PERF_COUNT_HW_BRANCH_MISSES]		= ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
-	[PERF_COUNT_HW_BUS_CYCLES]		= ARMV8_PMUV3_PERFCTR_BUS_CYCLES,
-	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND]	= ARMV8_PMUV3_PERFCTR_STALL_FRONTEND,
-	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND]	= ARMV8_PMUV3_PERFCTR_STALL_BACKEND,
-};
-
-static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-						[PERF_COUNT_HW_CACHE_OP_MAX]
-						[PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_L1D_CACHE,
-	[C(L1D)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL,
-
-	[C(L1I)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_L1I_CACHE,
-	[C(L1I)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL,
-
-	[C(DTLB)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL,
-	[C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_L1D_TLB,
-
-	[C(ITLB)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL,
-	[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_L1I_TLB,
-
-	[C(LL)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS_RD,
-	[C(LL)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_LL_CACHE_RD,
-
-	[C(BPU)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_PMUV3_PERFCTR_BR_PRED,
-	[C(BPU)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_PMUV3_PERFCTR_BR_MIS_PRED,
-};
-
-static const unsigned armv8_a53_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-					      [PERF_COUNT_HW_CACHE_OP_MAX]
-					      [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_A53_PERFCTR_PREF_LINEFILL,
-
-	[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
-	[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
-};
-
-static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-					      [PERF_COUNT_HW_CACHE_OP_MAX]
-					      [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
-	[C(L1D)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR,
-
-	[C(DTLB)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
-	[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
-
-	[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
-	[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
-};
-
-static const unsigned armv8_a73_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-					      [PERF_COUNT_HW_CACHE_OP_MAX]
-					      [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-};
-
-static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-						   [PERF_COUNT_HW_CACHE_OP_MAX]
-						   [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
-	[C(L1D)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_THUNDER_PERFCTR_L1D_CACHE_MISS_ST,
-	[C(L1D)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_ACCESS,
-	[C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1D_CACHE_PREF_MISS,
-
-	[C(L1I)][C(OP_PREFETCH)][C(RESULT_ACCESS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_ACCESS,
-	[C(L1I)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_THUNDER_PERFCTR_L1I_CACHE_PREF_MISS,
-
-	[C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD,
-	[C(DTLB)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
-	[C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR,
-	[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
-};
-
-static const unsigned armv8_vulcan_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-					      [PERF_COUNT_HW_CACHE_OP_MAX]
-					      [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
-	PERF_CACHE_MAP_ALL_UNSUPPORTED,
-
-	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
-	[C(L1D)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-	[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR,
-
-	[C(DTLB)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD,
-	[C(DTLB)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR,
-	[C(DTLB)][C(OP_READ)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD,
-	[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)]	= ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR,
-
-	[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
-	[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
-};
-
-static ssize_t
-armv8pmu_events_sysfs_show(struct device *dev,
-			   struct device_attribute *attr, char *page)
-{
-	struct perf_pmu_events_attr *pmu_attr;
-
-	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr);
-
-	return sprintf(page, "event=0x%04llx\n", pmu_attr->id);
-}
-
-#define ARMV8_EVENT_ATTR(name, config)						\
-	PMU_EVENT_ATTR_ID(name, armv8pmu_events_sysfs_show, config)
-
-static struct attribute *armv8_pmuv3_event_attrs[] = {
-	ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR),
-	ARMV8_EVENT_ATTR(l1i_cache_refill, ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL),
-	ARMV8_EVENT_ATTR(l1i_tlb_refill, ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL),
-	ARMV8_EVENT_ATTR(l1d_cache_refill, ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL),
-	ARMV8_EVENT_ATTR(l1d_cache, ARMV8_PMUV3_PERFCTR_L1D_CACHE),
-	ARMV8_EVENT_ATTR(l1d_tlb_refill, ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL),
-	ARMV8_EVENT_ATTR(ld_retired, ARMV8_PMUV3_PERFCTR_LD_RETIRED),
-	ARMV8_EVENT_ATTR(st_retired, ARMV8_PMUV3_PERFCTR_ST_RETIRED),
-	ARMV8_EVENT_ATTR(inst_retired, ARMV8_PMUV3_PERFCTR_INST_RETIRED),
-	ARMV8_EVENT_ATTR(exc_taken, ARMV8_PMUV3_PERFCTR_EXC_TAKEN),
-	ARMV8_EVENT_ATTR(exc_return, ARMV8_PMUV3_PERFCTR_EXC_RETURN),
-	ARMV8_EVENT_ATTR(cid_write_retired, ARMV8_PMUV3_PERFCTR_CID_WRITE_RETIRED),
-	ARMV8_EVENT_ATTR(pc_write_retired, ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED),
-	ARMV8_EVENT_ATTR(br_immed_retired, ARMV8_PMUV3_PERFCTR_BR_IMMED_RETIRED),
-	ARMV8_EVENT_ATTR(br_return_retired, ARMV8_PMUV3_PERFCTR_BR_RETURN_RETIRED),
-	ARMV8_EVENT_ATTR(unaligned_ldst_retired, ARMV8_PMUV3_PERFCTR_UNALIGNED_LDST_RETIRED),
-	ARMV8_EVENT_ATTR(br_mis_pred, ARMV8_PMUV3_PERFCTR_BR_MIS_PRED),
-	ARMV8_EVENT_ATTR(cpu_cycles, ARMV8_PMUV3_PERFCTR_CPU_CYCLES),
-	ARMV8_EVENT_ATTR(br_pred, ARMV8_PMUV3_PERFCTR_BR_PRED),
-	ARMV8_EVENT_ATTR(mem_access, ARMV8_PMUV3_PERFCTR_MEM_ACCESS),
-	ARMV8_EVENT_ATTR(l1i_cache, ARMV8_PMUV3_PERFCTR_L1I_CACHE),
-	ARMV8_EVENT_ATTR(l1d_cache_wb, ARMV8_PMUV3_PERFCTR_L1D_CACHE_WB),
-	ARMV8_EVENT_ATTR(l2d_cache, ARMV8_PMUV3_PERFCTR_L2D_CACHE),
-	ARMV8_EVENT_ATTR(l2d_cache_refill, ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL),
-	ARMV8_EVENT_ATTR(l2d_cache_wb, ARMV8_PMUV3_PERFCTR_L2D_CACHE_WB),
-	ARMV8_EVENT_ATTR(bus_access, ARMV8_PMUV3_PERFCTR_BUS_ACCESS),
-	ARMV8_EVENT_ATTR(memory_error, ARMV8_PMUV3_PERFCTR_MEMORY_ERROR),
-	ARMV8_EVENT_ATTR(inst_spec, ARMV8_PMUV3_PERFCTR_INST_SPEC),
-	ARMV8_EVENT_ATTR(ttbr_write_retired, ARMV8_PMUV3_PERFCTR_TTBR_WRITE_RETIRED),
-	ARMV8_EVENT_ATTR(bus_cycles, ARMV8_PMUV3_PERFCTR_BUS_CYCLES),
-	/* Don't expose the chain event in /sys, since it's useless in isolation */
-	ARMV8_EVENT_ATTR(l1d_cache_allocate, ARMV8_PMUV3_PERFCTR_L1D_CACHE_ALLOCATE),
-	ARMV8_EVENT_ATTR(l2d_cache_allocate, ARMV8_PMUV3_PERFCTR_L2D_CACHE_ALLOCATE),
-	ARMV8_EVENT_ATTR(br_retired, ARMV8_PMUV3_PERFCTR_BR_RETIRED),
-	ARMV8_EVENT_ATTR(br_mis_pred_retired, ARMV8_PMUV3_PERFCTR_BR_MIS_PRED_RETIRED),
-	ARMV8_EVENT_ATTR(stall_frontend, ARMV8_PMUV3_PERFCTR_STALL_FRONTEND),
-	ARMV8_EVENT_ATTR(stall_backend, ARMV8_PMUV3_PERFCTR_STALL_BACKEND),
-	ARMV8_EVENT_ATTR(l1d_tlb, ARMV8_PMUV3_PERFCTR_L1D_TLB),
-	ARMV8_EVENT_ATTR(l1i_tlb, ARMV8_PMUV3_PERFCTR_L1I_TLB),
-	ARMV8_EVENT_ATTR(l2i_cache, ARMV8_PMUV3_PERFCTR_L2I_CACHE),
-	ARMV8_EVENT_ATTR(l2i_cache_refill, ARMV8_PMUV3_PERFCTR_L2I_CACHE_REFILL),
-	ARMV8_EVENT_ATTR(l3d_cache_allocate, ARMV8_PMUV3_PERFCTR_L3D_CACHE_ALLOCATE),
-	ARMV8_EVENT_ATTR(l3d_cache_refill, ARMV8_PMUV3_PERFCTR_L3D_CACHE_REFILL),
-	ARMV8_EVENT_ATTR(l3d_cache, ARMV8_PMUV3_PERFCTR_L3D_CACHE),
-	ARMV8_EVENT_ATTR(l3d_cache_wb, ARMV8_PMUV3_PERFCTR_L3D_CACHE_WB),
-	ARMV8_EVENT_ATTR(l2d_tlb_refill, ARMV8_PMUV3_PERFCTR_L2D_TLB_REFILL),
-	ARMV8_EVENT_ATTR(l2i_tlb_refill, ARMV8_PMUV3_PERFCTR_L2I_TLB_REFILL),
-	ARMV8_EVENT_ATTR(l2d_tlb, ARMV8_PMUV3_PERFCTR_L2D_TLB),
-	ARMV8_EVENT_ATTR(l2i_tlb, ARMV8_PMUV3_PERFCTR_L2I_TLB),
-	ARMV8_EVENT_ATTR(remote_access, ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS),
-	ARMV8_EVENT_ATTR(ll_cache, ARMV8_PMUV3_PERFCTR_LL_CACHE),
-	ARMV8_EVENT_ATTR(ll_cache_miss, ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS),
-	ARMV8_EVENT_ATTR(dtlb_walk, ARMV8_PMUV3_PERFCTR_DTLB_WALK),
-	ARMV8_EVENT_ATTR(itlb_walk, ARMV8_PMUV3_PERFCTR_ITLB_WALK),
-	ARMV8_EVENT_ATTR(ll_cache_rd, ARMV8_PMUV3_PERFCTR_LL_CACHE_RD),
-	ARMV8_EVENT_ATTR(ll_cache_miss_rd, ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS_RD),
-	ARMV8_EVENT_ATTR(remote_access_rd, ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS_RD),
-	ARMV8_EVENT_ATTR(l1d_cache_lmiss_rd, ARMV8_PMUV3_PERFCTR_L1D_CACHE_LMISS_RD),
-	ARMV8_EVENT_ATTR(op_retired, ARMV8_PMUV3_PERFCTR_OP_RETIRED),
-	ARMV8_EVENT_ATTR(op_spec, ARMV8_PMUV3_PERFCTR_OP_SPEC),
-	ARMV8_EVENT_ATTR(stall, ARMV8_PMUV3_PERFCTR_STALL),
-	ARMV8_EVENT_ATTR(stall_slot_backend, ARMV8_PMUV3_PERFCTR_STALL_SLOT_BACKEND),
-	ARMV8_EVENT_ATTR(stall_slot_frontend, ARMV8_PMUV3_PERFCTR_STALL_SLOT_FRONTEND),
-	ARMV8_EVENT_ATTR(stall_slot, ARMV8_PMUV3_PERFCTR_STALL_SLOT),
-	ARMV8_EVENT_ATTR(sample_pop, ARMV8_SPE_PERFCTR_SAMPLE_POP),
-	ARMV8_EVENT_ATTR(sample_feed, ARMV8_SPE_PERFCTR_SAMPLE_FEED),
-	ARMV8_EVENT_ATTR(sample_filtrate, ARMV8_SPE_PERFCTR_SAMPLE_FILTRATE),
-	ARMV8_EVENT_ATTR(sample_collision, ARMV8_SPE_PERFCTR_SAMPLE_COLLISION),
-	ARMV8_EVENT_ATTR(cnt_cycles, ARMV8_AMU_PERFCTR_CNT_CYCLES),
-	ARMV8_EVENT_ATTR(stall_backend_mem, ARMV8_AMU_PERFCTR_STALL_BACKEND_MEM),
-	ARMV8_EVENT_ATTR(l1i_cache_lmiss, ARMV8_PMUV3_PERFCTR_L1I_CACHE_LMISS),
-	ARMV8_EVENT_ATTR(l2d_cache_lmiss_rd, ARMV8_PMUV3_PERFCTR_L2D_CACHE_LMISS_RD),
-	ARMV8_EVENT_ATTR(l2i_cache_lmiss, ARMV8_PMUV3_PERFCTR_L2I_CACHE_LMISS),
-	ARMV8_EVENT_ATTR(l3d_cache_lmiss_rd, ARMV8_PMUV3_PERFCTR_L3D_CACHE_LMISS_RD),
-	ARMV8_EVENT_ATTR(trb_wrap, ARMV8_PMUV3_PERFCTR_TRB_WRAP),
-	ARMV8_EVENT_ATTR(trb_trig, ARMV8_PMUV3_PERFCTR_TRB_TRIG),
-	ARMV8_EVENT_ATTR(trcextout0, ARMV8_PMUV3_PERFCTR_TRCEXTOUT0),
-	ARMV8_EVENT_ATTR(trcextout1, ARMV8_PMUV3_PERFCTR_TRCEXTOUT1),
-	ARMV8_EVENT_ATTR(trcextout2, ARMV8_PMUV3_PERFCTR_TRCEXTOUT2),
-	ARMV8_EVENT_ATTR(trcextout3, ARMV8_PMUV3_PERFCTR_TRCEXTOUT3),
-	ARMV8_EVENT_ATTR(cti_trigout4, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT4),
-	ARMV8_EVENT_ATTR(cti_trigout5, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT5),
-	ARMV8_EVENT_ATTR(cti_trigout6, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT6),
-	ARMV8_EVENT_ATTR(cti_trigout7, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT7),
-	ARMV8_EVENT_ATTR(ldst_align_lat, ARMV8_PMUV3_PERFCTR_LDST_ALIGN_LAT),
-	ARMV8_EVENT_ATTR(ld_align_lat, ARMV8_PMUV3_PERFCTR_LD_ALIGN_LAT),
-	ARMV8_EVENT_ATTR(st_align_lat, ARMV8_PMUV3_PERFCTR_ST_ALIGN_LAT),
-	ARMV8_EVENT_ATTR(mem_access_checked, ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED),
-	ARMV8_EVENT_ATTR(mem_access_checked_rd, ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_RD),
-	ARMV8_EVENT_ATTR(mem_access_checked_wr, ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_WR),
-	NULL,
-};
-
-static umode_t
-armv8pmu_event_attr_is_visible(struct kobject *kobj,
-			       struct attribute *attr, int unused)
-{
-	struct device *dev = kobj_to_dev(kobj);
-	struct pmu *pmu = dev_get_drvdata(dev);
-	struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu);
-	struct perf_pmu_events_attr *pmu_attr;
-
-	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
-
-	if (pmu_attr->id < ARMV8_PMUV3_MAX_COMMON_EVENTS &&
-	    test_bit(pmu_attr->id, cpu_pmu->pmceid_bitmap))
-		return attr->mode;
-
-	if (pmu_attr->id >= ARMV8_PMUV3_EXT_COMMON_EVENT_BASE) {
-		u64 id = pmu_attr->id - ARMV8_PMUV3_EXT_COMMON_EVENT_BASE;
-
-		if (id < ARMV8_PMUV3_MAX_COMMON_EVENTS &&
-		    test_bit(id, cpu_pmu->pmceid_ext_bitmap))
-			return attr->mode;
-	}
-
-	return 0;
-}
-
-static const struct attribute_group armv8_pmuv3_events_attr_group = {
-	.name = "events",
-	.attrs = armv8_pmuv3_event_attrs,
-	.is_visible = armv8pmu_event_attr_is_visible,
-};
-
-PMU_FORMAT_ATTR(event, "config:0-15");
-PMU_FORMAT_ATTR(long, "config1:0");
-PMU_FORMAT_ATTR(rdpmc, "config1:1");
-
-static int sysctl_perf_user_access __read_mostly;
-
-static inline bool armv8pmu_event_is_64bit(struct perf_event *event)
-{
-	return event->attr.config1 & 0x1;
-}
-
-static inline bool armv8pmu_event_want_user_access(struct perf_event *event)
-{
-	return event->attr.config1 & 0x2;
-}
-
-static struct attribute *armv8_pmuv3_format_attrs[] = {
-	&format_attr_event.attr,
-	&format_attr_long.attr,
-	&format_attr_rdpmc.attr,
-	NULL,
-};
-
-static const struct attribute_group armv8_pmuv3_format_attr_group = {
-	.name = "format",
-	.attrs = armv8_pmuv3_format_attrs,
-};
-
-static ssize_t slots_show(struct device *dev, struct device_attribute *attr,
-			  char *page)
-{
-	struct pmu *pmu = dev_get_drvdata(dev);
-	struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu);
-	u32 slots = cpu_pmu->reg_pmmir & ARMV8_PMU_SLOTS_MASK;
-
-	return sysfs_emit(page, "0x%08x\n", slots);
-}
-
-static DEVICE_ATTR_RO(slots);
-
-static ssize_t bus_slots_show(struct device *dev, struct device_attribute *attr,
-			      char *page)
-{
-	struct pmu *pmu = dev_get_drvdata(dev);
-	struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu);
-	u32 bus_slots = (cpu_pmu->reg_pmmir >> ARMV8_PMU_BUS_SLOTS_SHIFT)
-			& ARMV8_PMU_BUS_SLOTS_MASK;
-
-	return sysfs_emit(page, "0x%08x\n", bus_slots);
-}
-
-static DEVICE_ATTR_RO(bus_slots);
-
-static ssize_t bus_width_show(struct device *dev, struct device_attribute *attr,
-			      char *page)
-{
-	struct pmu *pmu = dev_get_drvdata(dev);
-	struct arm_pmu *cpu_pmu = container_of(pmu, struct arm_pmu, pmu);
-	u32 bus_width = (cpu_pmu->reg_pmmir >> ARMV8_PMU_BUS_WIDTH_SHIFT)
-			& ARMV8_PMU_BUS_WIDTH_MASK;
-	u32 val = 0;
-
-	/* Encoded as Log2(number of bytes), plus one */
-	if (bus_width > 2 && bus_width < 13)
-		val = 1 << (bus_width - 1);
-
-	return sysfs_emit(page, "0x%08x\n", val);
-}
-
-static DEVICE_ATTR_RO(bus_width);
-
-static struct attribute *armv8_pmuv3_caps_attrs[] = {
-	&dev_attr_slots.attr,
-	&dev_attr_bus_slots.attr,
-	&dev_attr_bus_width.attr,
-	NULL,
-};
-
-static const struct attribute_group armv8_pmuv3_caps_attr_group = {
-	.name = "caps",
-	.attrs = armv8_pmuv3_caps_attrs,
-};
-
-/*
- * Perf Events' indices
- */
-#define	ARMV8_IDX_CYCLE_COUNTER	0
-#define	ARMV8_IDX_COUNTER0	1
-#define	ARMV8_IDX_CYCLE_COUNTER_USER	32
-
-/*
- * We unconditionally enable ARMv8.5-PMU long event counter support
- * (64-bit events) where supported. Indicate if this arm_pmu has long
- * event counter support.
- */
-static bool armv8pmu_has_long_event(struct arm_pmu *cpu_pmu)
-{
-	return (cpu_pmu->pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P5);
-}
-
-static inline bool armv8pmu_event_has_user_read(struct perf_event *event)
-{
-	return event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT;
-}
-
-/*
- * We must chain two programmable counters for 64 bit events,
- * except when we have allocated the 64bit cycle counter (for CPU
- * cycles event) or when user space counter access is enabled.
- */
-static inline bool armv8pmu_event_is_chained(struct perf_event *event)
-{
-	int idx = event->hw.idx;
-	struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
-
-	return !armv8pmu_event_has_user_read(event) &&
-	       armv8pmu_event_is_64bit(event) &&
-	       !armv8pmu_has_long_event(cpu_pmu) &&
-	       (idx != ARMV8_IDX_CYCLE_COUNTER);
-}
-
-/*
- * ARMv8 low level PMU access
- */
-
-/*
- * Perf Event to low level counters mapping
- */
-#define	ARMV8_IDX_TO_COUNTER(x)	\
-	(((x) - ARMV8_IDX_COUNTER0) & ARMV8_PMU_COUNTER_MASK)
-
-/*
- * This code is really good
- */
-
-#define PMEVN_CASE(n, case_macro) \
-	case n: case_macro(n); break
-
-#define PMEVN_SWITCH(x, case_macro)				\
-	do {							\
-		switch (x) {					\
-		PMEVN_CASE(0,  case_macro);			\
-		PMEVN_CASE(1,  case_macro);			\
-		PMEVN_CASE(2,  case_macro);			\
-		PMEVN_CASE(3,  case_macro);			\
-		PMEVN_CASE(4,  case_macro);			\
-		PMEVN_CASE(5,  case_macro);			\
-		PMEVN_CASE(6,  case_macro);			\
-		PMEVN_CASE(7,  case_macro);			\
-		PMEVN_CASE(8,  case_macro);			\
-		PMEVN_CASE(9,  case_macro);			\
-		PMEVN_CASE(10, case_macro);			\
-		PMEVN_CASE(11, case_macro);			\
-		PMEVN_CASE(12, case_macro);			\
-		PMEVN_CASE(13, case_macro);			\
-		PMEVN_CASE(14, case_macro);			\
-		PMEVN_CASE(15, case_macro);			\
-		PMEVN_CASE(16, case_macro);			\
-		PMEVN_CASE(17, case_macro);			\
-		PMEVN_CASE(18, case_macro);			\
-		PMEVN_CASE(19, case_macro);			\
-		PMEVN_CASE(20, case_macro);			\
-		PMEVN_CASE(21, case_macro);			\
-		PMEVN_CASE(22, case_macro);			\
-		PMEVN_CASE(23, case_macro);			\
-		PMEVN_CASE(24, case_macro);			\
-		PMEVN_CASE(25, case_macro);			\
-		PMEVN_CASE(26, case_macro);			\
-		PMEVN_CASE(27, case_macro);			\
-		PMEVN_CASE(28, case_macro);			\
-		PMEVN_CASE(29, case_macro);			\
-		PMEVN_CASE(30, case_macro);			\
-		default: WARN(1, "Invalid PMEV* index\n");	\
-		}						\
-	} while (0)
-
-#define RETURN_READ_PMEVCNTRN(n) \
-	return read_sysreg(pmevcntr##n##_el0)
-static unsigned long read_pmevcntrn(int n)
-{
-	PMEVN_SWITCH(n, RETURN_READ_PMEVCNTRN);
-	return 0;
-}
-
-#define WRITE_PMEVCNTRN(n) \
-	write_sysreg(val, pmevcntr##n##_el0)
-static void write_pmevcntrn(int n, unsigned long val)
-{
-	PMEVN_SWITCH(n, WRITE_PMEVCNTRN);
-}
-
-#define WRITE_PMEVTYPERN(n) \
-	write_sysreg(val, pmevtyper##n##_el0)
-static void write_pmevtypern(int n, unsigned long val)
-{
-	PMEVN_SWITCH(n, WRITE_PMEVTYPERN);
-}
-
-static inline u32 armv8pmu_pmcr_read(void)
-{
-	return read_sysreg(pmcr_el0);
-}
-
-static inline void armv8pmu_pmcr_write(u32 val)
-{
-	val &= ARMV8_PMU_PMCR_MASK;
-	isb();
-	write_sysreg(val, pmcr_el0);
-}
-
-static inline int armv8pmu_has_overflowed(u32 pmovsr)
-{
-	return pmovsr & ARMV8_PMU_OVERFLOWED_MASK;
-}
-
-static inline int armv8pmu_counter_has_overflowed(u32 pmnc, int idx)
-{
-	return pmnc & BIT(ARMV8_IDX_TO_COUNTER(idx));
-}
-
-static inline u64 armv8pmu_read_evcntr(int idx)
-{
-	u32 counter = ARMV8_IDX_TO_COUNTER(idx);
-
-	return read_pmevcntrn(counter);
-}
-
-static inline u64 armv8pmu_read_hw_counter(struct perf_event *event)
-{
-	int idx = event->hw.idx;
-	u64 val = armv8pmu_read_evcntr(idx);
-
-	if (armv8pmu_event_is_chained(event))
-		val = (val << 32) | armv8pmu_read_evcntr(idx - 1);
-	return val;
-}
-
-/*
- * The cycle counter is always a 64-bit counter. When ARMV8_PMU_PMCR_LP
- * is set the event counters also become 64-bit counters. Unless the
- * user has requested a long counter (attr.config1) then we want to
- * interrupt upon 32-bit overflow - we achieve this by applying a bias.
- */
-static bool armv8pmu_event_needs_bias(struct perf_event *event)
-{
-	struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
-	struct hw_perf_event *hwc = &event->hw;
-	int idx = hwc->idx;
-
-	if (armv8pmu_event_is_64bit(event))
-		return false;
-
-	if (armv8pmu_has_long_event(cpu_pmu) ||
-	    idx == ARMV8_IDX_CYCLE_COUNTER)
-		return true;
-
-	return false;
-}
-
-static u64 armv8pmu_bias_long_counter(struct perf_event *event, u64 value)
-{
-	if (armv8pmu_event_needs_bias(event))
-		value |= GENMASK(63, 32);
-
-	return value;
-}
-
-static u64 armv8pmu_unbias_long_counter(struct perf_event *event, u64 value)
-{
-	if (armv8pmu_event_needs_bias(event))
-		value &= ~GENMASK(63, 32);
-
-	return value;
-}
-
-static u64 armv8pmu_read_counter(struct perf_event *event)
-{
-	struct hw_perf_event *hwc = &event->hw;
-	int idx = hwc->idx;
-	u64 value;
-
-	if (idx == ARMV8_IDX_CYCLE_COUNTER)
-		value = read_sysreg(pmccntr_el0);
-	else
-		value = armv8pmu_read_hw_counter(event);
-
-	return  armv8pmu_unbias_long_counter(event, value);
-}
-
-static inline void armv8pmu_write_evcntr(int idx, u64 value)
-{
-	u32 counter = ARMV8_IDX_TO_COUNTER(idx);
-
-	write_pmevcntrn(counter, value);
-}
-
-static inline void armv8pmu_write_hw_counter(struct perf_event *event,
-					     u64 value)
-{
-	int idx = event->hw.idx;
-
-	if (armv8pmu_event_is_chained(event)) {
-		armv8pmu_write_evcntr(idx, upper_32_bits(value));
-		armv8pmu_write_evcntr(idx - 1, lower_32_bits(value));
-	} else {
-		armv8pmu_write_evcntr(idx, value);
-	}
-}
-
-static void armv8pmu_write_counter(struct perf_event *event, u64 value)
-{
-	struct hw_perf_event *hwc = &event->hw;
-	int idx = hwc->idx;
-
-	value = armv8pmu_bias_long_counter(event, value);
-
-	if (idx == ARMV8_IDX_CYCLE_COUNTER)
-		write_sysreg(value, pmccntr_el0);
-	else
-		armv8pmu_write_hw_counter(event, value);
-}
-
-static inline void armv8pmu_write_evtype(int idx, u32 val)
-{
-	u32 counter = ARMV8_IDX_TO_COUNTER(idx);
-
-	val &= ARMV8_PMU_EVTYPE_MASK;
-	write_pmevtypern(counter, val);
-}
-
-static inline void armv8pmu_write_event_type(struct perf_event *event)
-{
-	struct hw_perf_event *hwc = &event->hw;
-	int idx = hwc->idx;
-
-	/*
-	 * For chained events, the low counter is programmed to count
-	 * the event of interest and the high counter is programmed
-	 * with CHAIN event code with filters set to count at all ELs.
-	 */
-	if (armv8pmu_event_is_chained(event)) {
-		u32 chain_evt = ARMV8_PMUV3_PERFCTR_CHAIN |
-				ARMV8_PMU_INCLUDE_EL2;
-
-		armv8pmu_write_evtype(idx - 1, hwc->config_base);
-		armv8pmu_write_evtype(idx, chain_evt);
-	} else {
-		if (idx == ARMV8_IDX_CYCLE_COUNTER)
-			write_sysreg(hwc->config_base, pmccfiltr_el0);
-		else
-			armv8pmu_write_evtype(idx, hwc->config_base);
-	}
-}
-
-static u32 armv8pmu_event_cnten_mask(struct perf_event *event)
-{
-	int counter = ARMV8_IDX_TO_COUNTER(event->hw.idx);
-	u32 mask = BIT(counter);
-
-	if (armv8pmu_event_is_chained(event))
-		mask |= BIT(counter - 1);
-	return mask;
-}
-
-static inline void armv8pmu_enable_counter(u32 mask)
-{
-	/*
-	 * Make sure event configuration register writes are visible before we
-	 * enable the counter.
-	 * */
-	isb();
-	write_sysreg(mask, pmcntenset_el0);
-}
-
-static inline void armv8pmu_enable_event_counter(struct perf_event *event)
-{
-	struct perf_event_attr *attr = &event->attr;
-	u32 mask = armv8pmu_event_cnten_mask(event);
-
-	kvm_set_pmu_events(mask, attr);
-
-	/* We rely on the hypervisor switch code to enable guest counters */
-	if (!kvm_pmu_counter_deferred(attr))
-		armv8pmu_enable_counter(mask);
-}
-
-static inline void armv8pmu_disable_counter(u32 mask)
-{
-	write_sysreg(mask, pmcntenclr_el0);
-	/*
-	 * Make sure the effects of disabling the counter are visible before we
-	 * start configuring the event.
-	 */
-	isb();
-}
-
-static inline void armv8pmu_disable_event_counter(struct perf_event *event)
-{
-	struct perf_event_attr *attr = &event->attr;
-	u32 mask = armv8pmu_event_cnten_mask(event);
-
-	kvm_clr_pmu_events(mask);
-
-	/* We rely on the hypervisor switch code to disable guest counters */
-	if (!kvm_pmu_counter_deferred(attr))
-		armv8pmu_disable_counter(mask);
-}
-
-static inline void armv8pmu_enable_intens(u32 mask)
-{
-	write_sysreg(mask, pmintenset_el1);
-}
-
-static inline void armv8pmu_enable_event_irq(struct perf_event *event)
-{
-	u32 counter = ARMV8_IDX_TO_COUNTER(event->hw.idx);
-	armv8pmu_enable_intens(BIT(counter));
-}
-
-static inline void armv8pmu_disable_intens(u32 mask)
-{
-	write_sysreg(mask, pmintenclr_el1);
-	isb();
-	/* Clear the overflow flag in case an interrupt is pending. */
-	write_sysreg(mask, pmovsclr_el0);
-	isb();
-}
-
-static inline void armv8pmu_disable_event_irq(struct perf_event *event)
-{
-	u32 counter = ARMV8_IDX_TO_COUNTER(event->hw.idx);
-	armv8pmu_disable_intens(BIT(counter));
-}
-
-static inline u32 armv8pmu_getreset_flags(void)
-{
-	u32 value;
-
-	/* Read */
-	value = read_sysreg(pmovsclr_el0);
-
-	/* Write to clear flags */
-	value &= ARMV8_PMU_OVSR_MASK;
-	write_sysreg(value, pmovsclr_el0);
-
-	return value;
-}
-
-static void armv8pmu_disable_user_access(void)
-{
-	write_sysreg(0, pmuserenr_el0);
-}
-
-static void armv8pmu_enable_user_access(struct arm_pmu *cpu_pmu)
-{
-	int i;
-	struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events);
-
-	/* Clear any unused counters to avoid leaking their contents */
-	for_each_clear_bit(i, cpuc->used_mask, cpu_pmu->num_events) {
-		if (i == ARMV8_IDX_CYCLE_COUNTER)
-			write_sysreg(0, pmccntr_el0);
-		else
-			armv8pmu_write_evcntr(i, 0);
-	}
-
-	write_sysreg(0, pmuserenr_el0);
-	write_sysreg(ARMV8_PMU_USERENR_ER | ARMV8_PMU_USERENR_CR, pmuserenr_el0);
-}
-
-static void armv8pmu_enable_event(struct perf_event *event)
-{
-	/*
-	 * Enable counter and interrupt, and set the counter to count
-	 * the event that we're interested in.
-	 */
-
-	/*
-	 * Disable counter
-	 */
-	armv8pmu_disable_event_counter(event);
-
-	/*
-	 * Set event.
-	 */
-	armv8pmu_write_event_type(event);
-
-	/*
-	 * Enable interrupt for this counter
-	 */
-	armv8pmu_enable_event_irq(event);
-
-	/*
-	 * Enable counter
-	 */
-	armv8pmu_enable_event_counter(event);
-}
-
-static void armv8pmu_disable_event(struct perf_event *event)
-{
-	/*
-	 * Disable counter
-	 */
-	armv8pmu_disable_event_counter(event);
-
-	/*
-	 * Disable interrupt for this counter
-	 */
-	armv8pmu_disable_event_irq(event);
-}
-
-static void armv8pmu_start(struct arm_pmu *cpu_pmu)
-{
-	struct perf_event_context *ctx;
-	int nr_user = 0;
-
-	ctx = perf_cpu_task_ctx();
-	if (ctx)
-		nr_user = ctx->nr_user;
-
-	if (sysctl_perf_user_access && nr_user)
-		armv8pmu_enable_user_access(cpu_pmu);
-	else
-		armv8pmu_disable_user_access();
-
-	/* Enable all counters */
-	armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMU_PMCR_E);
-}
-
-static void armv8pmu_stop(struct arm_pmu *cpu_pmu)
-{
-	/* Disable all counters */
-	armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_PMCR_E);
-}
-
-static irqreturn_t armv8pmu_handle_irq(struct arm_pmu *cpu_pmu)
-{
-	u32 pmovsr;
-	struct perf_sample_data data;
-	struct pmu_hw_events *cpuc = this_cpu_ptr(cpu_pmu->hw_events);
-	struct pt_regs *regs;
-	int idx;
-
-	/*
-	 * Get and reset the IRQ flags
-	 */
-	pmovsr = armv8pmu_getreset_flags();
-
-	/*
-	 * Did an overflow occur?
-	 */
-	if (!armv8pmu_has_overflowed(pmovsr))
-		return IRQ_NONE;
-
-	/*
-	 * Handle the counter(s) overflow(s)
-	 */
-	regs = get_irq_regs();
-
-	/*
-	 * Stop the PMU while processing the counter overflows
-	 * to prevent skews in group events.
-	 */
-	armv8pmu_stop(cpu_pmu);
-	for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
-		struct perf_event *event = cpuc->events[idx];
-		struct hw_perf_event *hwc;
-
-		/* Ignore if we don't have an event. */
-		if (!event)
-			continue;
-
-		/*
-		 * We have a single interrupt for all counters. Check that
-		 * each counter has overflowed before we process it.
-		 */
-		if (!armv8pmu_counter_has_overflowed(pmovsr, idx))
-			continue;
-
-		hwc = &event->hw;
-		armpmu_event_update(event);
-		perf_sample_data_init(&data, 0, hwc->last_period);
-		if (!armpmu_event_set_period(event))
-			continue;
-
-		/*
-		 * Perf event overflow will queue the processing of the event as
-		 * an irq_work which will be taken care of in the handling of
-		 * IPI_IRQ_WORK.
-		 */
-		if (perf_event_overflow(event, &data, regs))
-			cpu_pmu->disable(event);
-	}
-	armv8pmu_start(cpu_pmu);
-
-	return IRQ_HANDLED;
-}
-
-static int armv8pmu_get_single_idx(struct pmu_hw_events *cpuc,
-				    struct arm_pmu *cpu_pmu)
-{
-	int idx;
-
-	for (idx = ARMV8_IDX_COUNTER0; idx < cpu_pmu->num_events; idx++) {
-		if (!test_and_set_bit(idx, cpuc->used_mask))
-			return idx;
-	}
-	return -EAGAIN;
-}
-
-static int armv8pmu_get_chain_idx(struct pmu_hw_events *cpuc,
-				   struct arm_pmu *cpu_pmu)
-{
-	int idx;
-
-	/*
-	 * Chaining requires two consecutive event counters, where
-	 * the lower idx must be even.
-	 */
-	for (idx = ARMV8_IDX_COUNTER0 + 1; idx < cpu_pmu->num_events; idx += 2) {
-		if (!test_and_set_bit(idx, cpuc->used_mask)) {
-			/* Check if the preceding even counter is available */
-			if (!test_and_set_bit(idx - 1, cpuc->used_mask))
-				return idx;
-			/* Release the Odd counter */
-			clear_bit(idx, cpuc->used_mask);
-		}
-	}
-	return -EAGAIN;
-}
-
-static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc,
-				  struct perf_event *event)
-{
-	struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
-	struct hw_perf_event *hwc = &event->hw;
-	unsigned long evtype = hwc->config_base & ARMV8_PMU_EVTYPE_EVENT;
-
-	/* Always prefer to place a cycle counter into the cycle counter. */
-	if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) {
-		if (!test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask))
-			return ARMV8_IDX_CYCLE_COUNTER;
-		else if (armv8pmu_event_is_64bit(event) &&
-			   armv8pmu_event_want_user_access(event) &&
-			   !armv8pmu_has_long_event(cpu_pmu))
-				return -EAGAIN;
-	}
-
-	/*
-	 * Otherwise use events counters
-	 */
-	if (armv8pmu_event_is_chained(event))
-		return	armv8pmu_get_chain_idx(cpuc, cpu_pmu);
-	else
-		return armv8pmu_get_single_idx(cpuc, cpu_pmu);
-}
-
-static void armv8pmu_clear_event_idx(struct pmu_hw_events *cpuc,
-				     struct perf_event *event)
-{
-	int idx = event->hw.idx;
-
-	clear_bit(idx, cpuc->used_mask);
-	if (armv8pmu_event_is_chained(event))
-		clear_bit(idx - 1, cpuc->used_mask);
-}
-
-static int armv8pmu_user_event_idx(struct perf_event *event)
-{
-	if (!sysctl_perf_user_access || !armv8pmu_event_has_user_read(event))
-		return 0;
-
-	/*
-	 * We remap the cycle counter index to 32 to
-	 * match the offset applied to the rest of
-	 * the counter indices.
-	 */
-	if (event->hw.idx == ARMV8_IDX_CYCLE_COUNTER)
-		return ARMV8_IDX_CYCLE_COUNTER_USER;
-
-	return event->hw.idx;
-}
-
-/*
- * Add an event filter to a given event.
- */
-static int armv8pmu_set_event_filter(struct hw_perf_event *event,
-				     struct perf_event_attr *attr)
-{
-	unsigned long config_base = 0;
-
-	if (attr->exclude_idle)
-		return -EPERM;
-
-	/*
-	 * If we're running in hyp mode, then we *are* the hypervisor.
-	 * Therefore we ignore exclude_hv in this configuration, since
-	 * there's no hypervisor to sample anyway. This is consistent
-	 * with other architectures (x86 and Power).
-	 */
-	if (is_kernel_in_hyp_mode()) {
-		if (!attr->exclude_kernel && !attr->exclude_host)
-			config_base |= ARMV8_PMU_INCLUDE_EL2;
-		if (attr->exclude_guest)
-			config_base |= ARMV8_PMU_EXCLUDE_EL1;
-		if (attr->exclude_host)
-			config_base |= ARMV8_PMU_EXCLUDE_EL0;
-	} else {
-		if (!attr->exclude_hv && !attr->exclude_host)
-			config_base |= ARMV8_PMU_INCLUDE_EL2;
-	}
-
-	/*
-	 * Filter out !VHE kernels and guest kernels
-	 */
-	if (attr->exclude_kernel)
-		config_base |= ARMV8_PMU_EXCLUDE_EL1;
-
-	if (attr->exclude_user)
-		config_base |= ARMV8_PMU_EXCLUDE_EL0;
-
-	/*
-	 * Install the filter into config_base as this is used to
-	 * construct the event type.
-	 */
-	event->config_base = config_base;
-
-	return 0;
-}
-
-static void armv8pmu_reset(void *info)
-{
-	struct arm_pmu *cpu_pmu = (struct arm_pmu *)info;
-	u32 pmcr;
-
-	/* The counter and interrupt enable registers are unknown at reset. */
-	armv8pmu_disable_counter(U32_MAX);
-	armv8pmu_disable_intens(U32_MAX);
-
-	/* Clear the counters we flip at guest entry/exit */
-	kvm_clr_pmu_events(U32_MAX);
-
-	/*
-	 * Initialize & Reset PMNC. Request overflow interrupt for
-	 * 64 bit cycle counter but cheat in armv8pmu_write_counter().
-	 */
-	pmcr = ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C | ARMV8_PMU_PMCR_LC;
-
-	/* Enable long event counter support where available */
-	if (armv8pmu_has_long_event(cpu_pmu))
-		pmcr |= ARMV8_PMU_PMCR_LP;
-
-	armv8pmu_pmcr_write(pmcr);
-}
-
-static int __armv8_pmuv3_map_event(struct perf_event *event,
-				   const unsigned (*extra_event_map)
-						  [PERF_COUNT_HW_MAX],
-				   const unsigned (*extra_cache_map)
-						  [PERF_COUNT_HW_CACHE_MAX]
-						  [PERF_COUNT_HW_CACHE_OP_MAX]
-						  [PERF_COUNT_HW_CACHE_RESULT_MAX])
-{
-	int hw_event_id;
-	struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
-
-	hw_event_id = armpmu_map_event(event, &armv8_pmuv3_perf_map,
-				       &armv8_pmuv3_perf_cache_map,
-				       ARMV8_PMU_EVTYPE_EVENT);
-
-	/*
-	 * CHAIN events only work when paired with an adjacent counter, and it
-	 * never makes sense for a user to open one in isolation, as they'll be
-	 * rotated arbitrarily.
-	 */
-	if (hw_event_id == ARMV8_PMUV3_PERFCTR_CHAIN)
-		return -EINVAL;
-
-	if (armv8pmu_event_is_64bit(event))
-		event->hw.flags |= ARMPMU_EVT_64BIT;
-
-	/*
-	 * User events must be allocated into a single counter, and so
-	 * must not be chained.
-	 *
-	 * Most 64-bit events require long counter support, but 64-bit
-	 * CPU_CYCLES events can be placed into the dedicated cycle
-	 * counter when this is free.
-	 */
-	if (armv8pmu_event_want_user_access(event)) {
-		if (!(event->attach_state & PERF_ATTACH_TASK))
-			return -EINVAL;
-		if (armv8pmu_event_is_64bit(event) &&
-		    (hw_event_id != ARMV8_PMUV3_PERFCTR_CPU_CYCLES) &&
-		    !armv8pmu_has_long_event(armpmu))
-			return -EOPNOTSUPP;
-
-		event->hw.flags |= PERF_EVENT_FLAG_USER_READ_CNT;
-	}
-
-	/* Only expose micro/arch events supported by this PMU */
-	if ((hw_event_id > 0) && (hw_event_id < ARMV8_PMUV3_MAX_COMMON_EVENTS)
-	    && test_bit(hw_event_id, armpmu->pmceid_bitmap)) {
-		return hw_event_id;
-	}
-
-	return armpmu_map_event(event, extra_event_map, extra_cache_map,
-				ARMV8_PMU_EVTYPE_EVENT);
-}
-
-static int armv8_pmuv3_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL, NULL);
-}
-
-static int armv8_a53_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL, &armv8_a53_perf_cache_map);
-}
-
-static int armv8_a57_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL, &armv8_a57_perf_cache_map);
-}
-
-static int armv8_a73_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL, &armv8_a73_perf_cache_map);
-}
-
-static int armv8_thunder_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL,
-				       &armv8_thunder_perf_cache_map);
-}
-
-static int armv8_vulcan_map_event(struct perf_event *event)
-{
-	return __armv8_pmuv3_map_event(event, NULL,
-				       &armv8_vulcan_perf_cache_map);
-}
-
-struct armv8pmu_probe_info {
-	struct arm_pmu *pmu;
-	bool present;
-};
-
-static void __armv8pmu_probe_pmu(void *info)
-{
-	struct armv8pmu_probe_info *probe = info;
-	struct arm_pmu *cpu_pmu = probe->pmu;
-	u64 dfr0;
-	u64 pmceid_raw[2];
-	u32 pmceid[2];
-	int pmuver;
-
-	dfr0 = read_sysreg(id_aa64dfr0_el1);
-	pmuver = cpuid_feature_extract_unsigned_field(dfr0,
-			ID_AA64DFR0_EL1_PMUVer_SHIFT);
-	if (pmuver == ID_AA64DFR0_EL1_PMUVer_IMP_DEF ||
-	    pmuver == ID_AA64DFR0_EL1_PMUVer_NI)
-		return;
-
-	cpu_pmu->pmuver = pmuver;
-	probe->present = true;
-
-	/* Read the nb of CNTx counters supported from PMNC */
-	cpu_pmu->num_events = (armv8pmu_pmcr_read() >> ARMV8_PMU_PMCR_N_SHIFT)
-		& ARMV8_PMU_PMCR_N_MASK;
-
-	/* Add the CPU cycles counter */
-	cpu_pmu->num_events += 1;
-
-	pmceid[0] = pmceid_raw[0] = read_sysreg(pmceid0_el0);
-	pmceid[1] = pmceid_raw[1] = read_sysreg(pmceid1_el0);
-
-	bitmap_from_arr32(cpu_pmu->pmceid_bitmap,
-			     pmceid, ARMV8_PMUV3_MAX_COMMON_EVENTS);
-
-	pmceid[0] = pmceid_raw[0] >> 32;
-	pmceid[1] = pmceid_raw[1] >> 32;
-
-	bitmap_from_arr32(cpu_pmu->pmceid_ext_bitmap,
-			     pmceid, ARMV8_PMUV3_MAX_COMMON_EVENTS);
-
-	/* store PMMIR_EL1 register for sysfs */
-	if (pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P4 && (pmceid_raw[1] & BIT(31)))
-		cpu_pmu->reg_pmmir = read_cpuid(PMMIR_EL1);
-	else
-		cpu_pmu->reg_pmmir = 0;
-}
-
-static int armv8pmu_probe_pmu(struct arm_pmu *cpu_pmu)
-{
-	struct armv8pmu_probe_info probe = {
-		.pmu = cpu_pmu,
-		.present = false,
-	};
-	int ret;
-
-	ret = smp_call_function_any(&cpu_pmu->supported_cpus,
-				    __armv8pmu_probe_pmu,
-				    &probe, 1);
-	if (ret)
-		return ret;
-
-	return probe.present ? 0 : -ENODEV;
-}
-
-static void armv8pmu_disable_user_access_ipi(void *unused)
-{
-	armv8pmu_disable_user_access();
-}
-
-static int armv8pmu_proc_user_access_handler(struct ctl_table *table, int write,
-		void *buffer, size_t *lenp, loff_t *ppos)
-{
-	int ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-	if (ret || !write || sysctl_perf_user_access)
-		return ret;
-
-	on_each_cpu(armv8pmu_disable_user_access_ipi, NULL, 1);
-	return 0;
-}
-
-static struct ctl_table armv8_pmu_sysctl_table[] = {
-	{
-		.procname       = "perf_user_access",
-		.data		= &sysctl_perf_user_access,
-		.maxlen		= sizeof(unsigned int),
-		.mode           = 0644,
-		.proc_handler	= armv8pmu_proc_user_access_handler,
-		.extra1		= SYSCTL_ZERO,
-		.extra2		= SYSCTL_ONE,
-	},
-	{ }
-};
-
-static void armv8_pmu_register_sysctl_table(void)
-{
-	static u32 tbl_registered = 0;
-
-	if (!cmpxchg_relaxed(&tbl_registered, 0, 1))
-		register_sysctl("kernel", armv8_pmu_sysctl_table);
-}
-
-static int armv8_pmu_init(struct arm_pmu *cpu_pmu, char *name,
-			  int (*map_event)(struct perf_event *event),
-			  const struct attribute_group *events,
-			  const struct attribute_group *format,
-			  const struct attribute_group *caps)
-{
-	int ret = armv8pmu_probe_pmu(cpu_pmu);
-	if (ret)
-		return ret;
-
-	cpu_pmu->handle_irq		= armv8pmu_handle_irq;
-	cpu_pmu->enable			= armv8pmu_enable_event;
-	cpu_pmu->disable		= armv8pmu_disable_event;
-	cpu_pmu->read_counter		= armv8pmu_read_counter;
-	cpu_pmu->write_counter		= armv8pmu_write_counter;
-	cpu_pmu->get_event_idx		= armv8pmu_get_event_idx;
-	cpu_pmu->clear_event_idx	= armv8pmu_clear_event_idx;
-	cpu_pmu->start			= armv8pmu_start;
-	cpu_pmu->stop			= armv8pmu_stop;
-	cpu_pmu->reset			= armv8pmu_reset;
-	cpu_pmu->set_event_filter	= armv8pmu_set_event_filter;
-
-	cpu_pmu->pmu.event_idx		= armv8pmu_user_event_idx;
-
-	cpu_pmu->name			= name;
-	cpu_pmu->map_event		= map_event;
-	cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = events ?
-			events : &armv8_pmuv3_events_attr_group;
-	cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = format ?
-			format : &armv8_pmuv3_format_attr_group;
-	cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_CAPS] = caps ?
-			caps : &armv8_pmuv3_caps_attr_group;
-
-	armv8_pmu_register_sysctl_table();
-	return 0;
-}
-
-static int armv8_pmu_init_nogroups(struct arm_pmu *cpu_pmu, char *name,
-				   int (*map_event)(struct perf_event *event))
-{
-	return armv8_pmu_init(cpu_pmu, name, map_event, NULL, NULL, NULL);
-}
-
-#define PMUV3_INIT_SIMPLE(name)						\
-static int name##_pmu_init(struct arm_pmu *cpu_pmu)			\
-{									\
-	return armv8_pmu_init_nogroups(cpu_pmu, #name, armv8_pmuv3_map_event);\
-}
-
-PMUV3_INIT_SIMPLE(armv8_pmuv3)
-
-PMUV3_INIT_SIMPLE(armv8_cortex_a34)
-PMUV3_INIT_SIMPLE(armv8_cortex_a55)
-PMUV3_INIT_SIMPLE(armv8_cortex_a65)
-PMUV3_INIT_SIMPLE(armv8_cortex_a75)
-PMUV3_INIT_SIMPLE(armv8_cortex_a76)
-PMUV3_INIT_SIMPLE(armv8_cortex_a77)
-PMUV3_INIT_SIMPLE(armv8_cortex_a78)
-PMUV3_INIT_SIMPLE(armv9_cortex_a510)
-PMUV3_INIT_SIMPLE(armv9_cortex_a710)
-PMUV3_INIT_SIMPLE(armv8_cortex_x1)
-PMUV3_INIT_SIMPLE(armv9_cortex_x2)
-PMUV3_INIT_SIMPLE(armv8_neoverse_e1)
-PMUV3_INIT_SIMPLE(armv8_neoverse_n1)
-PMUV3_INIT_SIMPLE(armv9_neoverse_n2)
-PMUV3_INIT_SIMPLE(armv8_neoverse_v1)
-
-PMUV3_INIT_SIMPLE(armv8_nvidia_carmel)
-PMUV3_INIT_SIMPLE(armv8_nvidia_denver)
-
-static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a35",
-				       armv8_a53_map_event);
-}
-
-static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a53",
-				       armv8_a53_map_event);
-}
-
-static int armv8_a57_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a57",
-				       armv8_a57_map_event);
-}
-
-static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a72",
-				       armv8_a57_map_event);
-}
-
-static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a73",
-				       armv8_a73_map_event);
-}
-
-static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cavium_thunder",
-				       armv8_thunder_map_event);
-}
-
-static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu)
-{
-	return armv8_pmu_init_nogroups(cpu_pmu, "armv8_brcm_vulcan",
-				       armv8_vulcan_map_event);
-}
-
-static const struct of_device_id armv8_pmu_of_device_ids[] = {
-	{.compatible = "arm,armv8-pmuv3",	.data = armv8_pmuv3_pmu_init},
-	{.compatible = "arm,cortex-a34-pmu",	.data = armv8_cortex_a34_pmu_init},
-	{.compatible = "arm,cortex-a35-pmu",	.data = armv8_a35_pmu_init},
-	{.compatible = "arm,cortex-a53-pmu",	.data = armv8_a53_pmu_init},
-	{.compatible = "arm,cortex-a55-pmu",	.data = armv8_cortex_a55_pmu_init},
-	{.compatible = "arm,cortex-a57-pmu",	.data = armv8_a57_pmu_init},
-	{.compatible = "arm,cortex-a65-pmu",	.data = armv8_cortex_a65_pmu_init},
-	{.compatible = "arm,cortex-a72-pmu",	.data = armv8_a72_pmu_init},
-	{.compatible = "arm,cortex-a73-pmu",	.data = armv8_a73_pmu_init},
-	{.compatible = "arm,cortex-a75-pmu",	.data = armv8_cortex_a75_pmu_init},
-	{.compatible = "arm,cortex-a76-pmu",	.data = armv8_cortex_a76_pmu_init},
-	{.compatible = "arm,cortex-a77-pmu",	.data = armv8_cortex_a77_pmu_init},
-	{.compatible = "arm,cortex-a78-pmu",	.data = armv8_cortex_a78_pmu_init},
-	{.compatible = "arm,cortex-a510-pmu",	.data = armv9_cortex_a510_pmu_init},
-	{.compatible = "arm,cortex-a710-pmu",	.data = armv9_cortex_a710_pmu_init},
-	{.compatible = "arm,cortex-x1-pmu",	.data = armv8_cortex_x1_pmu_init},
-	{.compatible = "arm,cortex-x2-pmu",	.data = armv9_cortex_x2_pmu_init},
-	{.compatible = "arm,neoverse-e1-pmu",	.data = armv8_neoverse_e1_pmu_init},
-	{.compatible = "arm,neoverse-n1-pmu",	.data = armv8_neoverse_n1_pmu_init},
-	{.compatible = "arm,neoverse-n2-pmu",	.data = armv9_neoverse_n2_pmu_init},
-	{.compatible = "arm,neoverse-v1-pmu",	.data = armv8_neoverse_v1_pmu_init},
-	{.compatible = "cavium,thunder-pmu",	.data = armv8_thunder_pmu_init},
-	{.compatible = "brcm,vulcan-pmu",	.data = armv8_vulcan_pmu_init},
-	{.compatible = "nvidia,carmel-pmu",	.data = armv8_nvidia_carmel_pmu_init},
-	{.compatible = "nvidia,denver-pmu",	.data = armv8_nvidia_denver_pmu_init},
-	{},
-};
-
-static int armv8_pmu_device_probe(struct platform_device *pdev)
-{
-	return arm_pmu_device_probe(pdev, armv8_pmu_of_device_ids, NULL);
-}
-
-static struct platform_driver armv8_pmu_driver = {
-	.driver		= {
-		.name	= ARMV8_PMU_PDEV_NAME,
-		.of_match_table = armv8_pmu_of_device_ids,
-		.suppress_bind_attrs = true,
-	},
-	.probe		= armv8_pmu_device_probe,
-};
-
-static int __init armv8_pmu_driver_init(void)
-{
-	if (acpi_disabled)
-		return platform_driver_register(&armv8_pmu_driver);
-	else
-		return arm_pmu_acpi_probe(armv8_pmuv3_pmu_init);
-}
-device_initcall(armv8_pmu_driver_init)
-
-void arch_perf_update_userpage(struct perf_event *event,
-			       struct perf_event_mmap_page *userpg, u64 now)
-{
-	struct clock_read_data *rd;
-	unsigned int seq;
-	u64 ns;
-
-	userpg->cap_user_time = 0;
-	userpg->cap_user_time_zero = 0;
-	userpg->cap_user_time_short = 0;
-	userpg->cap_user_rdpmc = armv8pmu_event_has_user_read(event);
-
-	if (userpg->cap_user_rdpmc) {
-		if (event->hw.flags & ARMPMU_EVT_64BIT)
-			userpg->pmc_width = 64;
-		else
-			userpg->pmc_width = 32;
-	}
-
-	do {
-		rd = sched_clock_read_begin(&seq);
-
-		if (rd->read_sched_clock != arch_timer_read_counter)
-			return;
-
-		userpg->time_mult = rd->mult;
-		userpg->time_shift = rd->shift;
-		userpg->time_zero = rd->epoch_ns;
-		userpg->time_cycles = rd->epoch_cyc;
-		userpg->time_mask = rd->sched_clock_mask;
-
-		/*
-		 * Subtract the cycle base, such that software that
-		 * doesn't know about cap_user_time_short still 'works'
-		 * assuming no wraps.
-		 */
-		ns = mul_u64_u32_shr(rd->epoch_cyc, rd->mult, rd->shift);
-		userpg->time_zero -= ns;
-
-	} while (sched_clock_read_retry(seq));
-
-	userpg->time_offset = userpg->time_zero - now;
-
-	/*
-	 * time_shift is not expected to be greater than 31 due to
-	 * the original published conversion algorithm shifting a
-	 * 32-bit value (now specifies a 64-bit value) - refer
-	 * perf_event_mmap_page documentation in perf_event.h.
-	 */
-	if (userpg->time_shift == 32) {
-		userpg->time_shift = 31;
-		userpg->time_mult >>= 1;
-	}
-
-	/*
-	 * Internal timekeeping for enabled/running/stopped times
-	 * is always computed with the sched_clock.
-	 */
-	userpg->cap_user_time = 1;
-	userpg->cap_user_time_zero = 1;
-	userpg->cap_user_time_short = 1;
-}