[PATCH v2 1/8] arm64: perf: Move PMUv3 driver to drivers/perf
Zaid Al-Bassam
zalbassam at google.com
Fri Feb 10 08:54:53 PST 2023
From: Marc Zyngier <marc.zyngier at arm.com>
Having the ARM PMUv3 driver sitting in arch/arm64/kernel is getting
in the way of being able to use perf on ARMv8 cores running a 32bit
kernel, such as 32bit KVM guests.
This patch moves it into drivers/perf/arm_pmuv3.c, with an include
file in include/linux/perf/arm_pmuv3.h. The only thing left in
arch/arm64 is some mundane perf stuff.
Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
Signed-off-by: Zaid Al-Bassam <zalbassam at google.com>
Signed-off-by: Marc Zyngier <maz at kernel.org>
Link: https://lore.kernel.org/r/20230126204444.2204061-2-zalbassam@google.com
---
arch/arm64/include/asm/perf_event.h | 249 ----------------
arch/arm64/kernel/Makefile | 1 -
drivers/perf/Kconfig | 11 +
drivers/perf/Makefile | 1 +
.../perf_event.c => drivers/perf/arm_pmuv3.c | 1 +
include/kvm/arm_pmu.h | 2 +-
include/linux/perf/arm_pmuv3.h | 270 ++++++++++++++++++
7 files changed, 284 insertions(+), 251 deletions(-)
rename arch/arm64/kernel/perf_event.c => drivers/perf/arm_pmuv3.c (99%)
create mode 100644 include/linux/perf/arm_pmuv3.h
diff --git a/arch/arm64/include/asm/perf_event.h b/arch/arm64/include/asm/perf_event.h
index 3eaf462f5752c..eb7071c9eb343 100644
--- a/arch/arm64/include/asm/perf_event.h
+++ b/arch/arm64/include/asm/perf_event.h
@@ -9,255 +9,6 @@
#include <asm/stack_pointer.h>
#include <asm/ptrace.h>
-#define ARMV8_PMU_MAX_COUNTERS 32
-#define ARMV8_PMU_COUNTER_MASK (ARMV8_PMU_MAX_COUNTERS - 1)
-
-/*
- * Common architectural and microarchitectural event numbers.
- */
-#define ARMV8_PMUV3_PERFCTR_SW_INCR 0x0000
-#define ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL 0x0001
-#define ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL 0x0002
-#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL 0x0003
-#define ARMV8_PMUV3_PERFCTR_L1D_CACHE 0x0004
-#define ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL 0x0005
-#define ARMV8_PMUV3_PERFCTR_LD_RETIRED 0x0006
-#define ARMV8_PMUV3_PERFCTR_ST_RETIRED 0x0007
-#define ARMV8_PMUV3_PERFCTR_INST_RETIRED 0x0008
-#define ARMV8_PMUV3_PERFCTR_EXC_TAKEN 0x0009
-#define ARMV8_PMUV3_PERFCTR_EXC_RETURN 0x000A
-#define ARMV8_PMUV3_PERFCTR_CID_WRITE_RETIRED 0x000B
-#define ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED 0x000C
-#define ARMV8_PMUV3_PERFCTR_BR_IMMED_RETIRED 0x000D
-#define ARMV8_PMUV3_PERFCTR_BR_RETURN_RETIRED 0x000E
-#define ARMV8_PMUV3_PERFCTR_UNALIGNED_LDST_RETIRED 0x000F
-#define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED 0x0010
-#define ARMV8_PMUV3_PERFCTR_CPU_CYCLES 0x0011
-#define ARMV8_PMUV3_PERFCTR_BR_PRED 0x0012
-#define ARMV8_PMUV3_PERFCTR_MEM_ACCESS 0x0013
-#define ARMV8_PMUV3_PERFCTR_L1I_CACHE 0x0014
-#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_WB 0x0015
-#define ARMV8_PMUV3_PERFCTR_L2D_CACHE 0x0016
-#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL 0x0017
-#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_WB 0x0018
-#define ARMV8_PMUV3_PERFCTR_BUS_ACCESS 0x0019
-#define ARMV8_PMUV3_PERFCTR_MEMORY_ERROR 0x001A
-#define ARMV8_PMUV3_PERFCTR_INST_SPEC 0x001B
-#define ARMV8_PMUV3_PERFCTR_TTBR_WRITE_RETIRED 0x001C
-#define ARMV8_PMUV3_PERFCTR_BUS_CYCLES 0x001D
-#define ARMV8_PMUV3_PERFCTR_CHAIN 0x001E
-#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_ALLOCATE 0x001F
-#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_ALLOCATE 0x0020
-#define ARMV8_PMUV3_PERFCTR_BR_RETIRED 0x0021
-#define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED_RETIRED 0x0022
-#define ARMV8_PMUV3_PERFCTR_STALL_FRONTEND 0x0023
-#define ARMV8_PMUV3_PERFCTR_STALL_BACKEND 0x0024
-#define ARMV8_PMUV3_PERFCTR_L1D_TLB 0x0025
-#define ARMV8_PMUV3_PERFCTR_L1I_TLB 0x0026
-#define ARMV8_PMUV3_PERFCTR_L2I_CACHE 0x0027
-#define ARMV8_PMUV3_PERFCTR_L2I_CACHE_REFILL 0x0028
-#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_ALLOCATE 0x0029
-#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_REFILL 0x002A
-#define ARMV8_PMUV3_PERFCTR_L3D_CACHE 0x002B
-#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_WB 0x002C
-#define ARMV8_PMUV3_PERFCTR_L2D_TLB_REFILL 0x002D
-#define ARMV8_PMUV3_PERFCTR_L2I_TLB_REFILL 0x002E
-#define ARMV8_PMUV3_PERFCTR_L2D_TLB 0x002F
-#define ARMV8_PMUV3_PERFCTR_L2I_TLB 0x0030
-#define ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS 0x0031
-#define ARMV8_PMUV3_PERFCTR_LL_CACHE 0x0032
-#define ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS 0x0033
-#define ARMV8_PMUV3_PERFCTR_DTLB_WALK 0x0034
-#define ARMV8_PMUV3_PERFCTR_ITLB_WALK 0x0035
-#define ARMV8_PMUV3_PERFCTR_LL_CACHE_RD 0x0036
-#define ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS_RD 0x0037
-#define ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS_RD 0x0038
-#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_LMISS_RD 0x0039
-#define ARMV8_PMUV3_PERFCTR_OP_RETIRED 0x003A
-#define ARMV8_PMUV3_PERFCTR_OP_SPEC 0x003B
-#define ARMV8_PMUV3_PERFCTR_STALL 0x003C
-#define ARMV8_PMUV3_PERFCTR_STALL_SLOT_BACKEND 0x003D
-#define ARMV8_PMUV3_PERFCTR_STALL_SLOT_FRONTEND 0x003E
-#define ARMV8_PMUV3_PERFCTR_STALL_SLOT 0x003F
-
-/* Statistical profiling extension microarchitectural events */
-#define ARMV8_SPE_PERFCTR_SAMPLE_POP 0x4000
-#define ARMV8_SPE_PERFCTR_SAMPLE_FEED 0x4001
-#define ARMV8_SPE_PERFCTR_SAMPLE_FILTRATE 0x4002
-#define ARMV8_SPE_PERFCTR_SAMPLE_COLLISION 0x4003
-
-/* AMUv1 architecture events */
-#define ARMV8_AMU_PERFCTR_CNT_CYCLES 0x4004
-#define ARMV8_AMU_PERFCTR_STALL_BACKEND_MEM 0x4005
-
-/* long-latency read miss events */
-#define ARMV8_PMUV3_PERFCTR_L1I_CACHE_LMISS 0x4006
-#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_LMISS_RD 0x4009
-#define ARMV8_PMUV3_PERFCTR_L2I_CACHE_LMISS 0x400A
-#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_LMISS_RD 0x400B
-
-/* Trace buffer events */
-#define ARMV8_PMUV3_PERFCTR_TRB_WRAP 0x400C
-#define ARMV8_PMUV3_PERFCTR_TRB_TRIG 0x400E
-
-/* Trace unit events */
-#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT0 0x4010
-#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT1 0x4011
-#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT2 0x4012
-#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT3 0x4013
-#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT4 0x4018
-#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT5 0x4019
-#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT6 0x401A
-#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT7 0x401B
-
-/* additional latency from alignment events */
-#define ARMV8_PMUV3_PERFCTR_LDST_ALIGN_LAT 0x4020
-#define ARMV8_PMUV3_PERFCTR_LD_ALIGN_LAT 0x4021
-#define ARMV8_PMUV3_PERFCTR_ST_ALIGN_LAT 0x4022
-
-/* Armv8.5 Memory Tagging Extension events */
-#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED 0x4024
-#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_RD 0x4025
-#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_WR 0x4026
-
-/* ARMv8 recommended implementation defined event types */
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD 0x0040
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR 0x0041
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD 0x0042
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR 0x0043
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_INNER 0x0044
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_OUTER 0x0045
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_VICTIM 0x0046
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_CLEAN 0x0047
-#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_INVAL 0x0048
-
-#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD 0x004C
-#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR 0x004D
-#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD 0x004E
-#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR 0x004F
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_RD 0x0050
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WR 0x0051
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_RD 0x0052
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_WR 0x0053
-
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_VICTIM 0x0056
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_CLEAN 0x0057
-#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_INVAL 0x0058
-
-#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_RD 0x005C
-#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_WR 0x005D
-#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_RD 0x005E
-#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_WR 0x005F
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD 0x0060
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR 0x0061
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_SHARED 0x0062
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NOT_SHARED 0x0063
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NORMAL 0x0064
-#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_PERIPH 0x0065
-#define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_RD 0x0066
-#define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_WR 0x0067
-#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LD_SPEC 0x0068
-#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_ST_SPEC 0x0069
-#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LDST_SPEC 0x006A
-
-#define ARMV8_IMPDEF_PERFCTR_LDREX_SPEC 0x006C
-#define ARMV8_IMPDEF_PERFCTR_STREX_PASS_SPEC 0x006D
-#define ARMV8_IMPDEF_PERFCTR_STREX_FAIL_SPEC 0x006E
-#define ARMV8_IMPDEF_PERFCTR_STREX_SPEC 0x006F
-#define ARMV8_IMPDEF_PERFCTR_LD_SPEC 0x0070
-#define ARMV8_IMPDEF_PERFCTR_ST_SPEC 0x0071
-#define ARMV8_IMPDEF_PERFCTR_LDST_SPEC 0x0072
-#define ARMV8_IMPDEF_PERFCTR_DP_SPEC 0x0073
-#define ARMV8_IMPDEF_PERFCTR_ASE_SPEC 0x0074
-#define ARMV8_IMPDEF_PERFCTR_VFP_SPEC 0x0075
-#define ARMV8_IMPDEF_PERFCTR_PC_WRITE_SPEC 0x0076
-#define ARMV8_IMPDEF_PERFCTR_CRYPTO_SPEC 0x0077
-#define ARMV8_IMPDEF_PERFCTR_BR_IMMED_SPEC 0x0078
-#define ARMV8_IMPDEF_PERFCTR_BR_RETURN_SPEC 0x0079
-#define ARMV8_IMPDEF_PERFCTR_BR_INDIRECT_SPEC 0x007A
-
-#define ARMV8_IMPDEF_PERFCTR_ISB_SPEC 0x007C
-#define ARMV8_IMPDEF_PERFCTR_DSB_SPEC 0x007D
-#define ARMV8_IMPDEF_PERFCTR_DMB_SPEC 0x007E
-
-#define ARMV8_IMPDEF_PERFCTR_EXC_UNDEF 0x0081
-#define ARMV8_IMPDEF_PERFCTR_EXC_SVC 0x0082
-#define ARMV8_IMPDEF_PERFCTR_EXC_PABORT 0x0083
-#define ARMV8_IMPDEF_PERFCTR_EXC_DABORT 0x0084
-
-#define ARMV8_IMPDEF_PERFCTR_EXC_IRQ 0x0086
-#define ARMV8_IMPDEF_PERFCTR_EXC_FIQ 0x0087
-#define ARMV8_IMPDEF_PERFCTR_EXC_SMC 0x0088
-
-#define ARMV8_IMPDEF_PERFCTR_EXC_HVC 0x008A
-#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_PABORT 0x008B
-#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_DABORT 0x008C
-#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_OTHER 0x008D
-#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_IRQ 0x008E
-#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_FIQ 0x008F
-#define ARMV8_IMPDEF_PERFCTR_RC_LD_SPEC 0x0090
-#define ARMV8_IMPDEF_PERFCTR_RC_ST_SPEC 0x0091
-
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_RD 0x00A0
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WR 0x00A1
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_RD 0x00A2
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_WR 0x00A3
-
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_VICTIM 0x00A6
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_CLEAN 0x00A7
-#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_INVAL 0x00A8
-
-/*
- * Per-CPU PMCR: config reg
- */
-#define ARMV8_PMU_PMCR_E (1 << 0) /* Enable all counters */
-#define ARMV8_PMU_PMCR_P (1 << 1) /* Reset all counters */
-#define ARMV8_PMU_PMCR_C (1 << 2) /* Cycle counter reset */
-#define ARMV8_PMU_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */
-#define ARMV8_PMU_PMCR_X (1 << 4) /* Export to ETM */
-#define ARMV8_PMU_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
-#define ARMV8_PMU_PMCR_LC (1 << 6) /* Overflow on 64 bit cycle counter */
-#define ARMV8_PMU_PMCR_LP (1 << 7) /* Long event counter enable */
-#define ARMV8_PMU_PMCR_N_SHIFT 11 /* Number of counters supported */
-#define ARMV8_PMU_PMCR_N_MASK 0x1f
-#define ARMV8_PMU_PMCR_MASK 0xff /* Mask for writable bits */
-
-/*
- * PMOVSR: counters overflow flag status reg
- */
-#define ARMV8_PMU_OVSR_MASK 0xffffffff /* Mask for writable bits */
-#define ARMV8_PMU_OVERFLOWED_MASK ARMV8_PMU_OVSR_MASK
-
-/*
- * PMXEVTYPER: Event selection reg
- */
-#define ARMV8_PMU_EVTYPE_MASK 0xc800ffff /* Mask for writable bits */
-#define ARMV8_PMU_EVTYPE_EVENT 0xffff /* Mask for EVENT bits */
-
-/*
- * Event filters for PMUv3
- */
-#define ARMV8_PMU_EXCLUDE_EL1 (1U << 31)
-#define ARMV8_PMU_EXCLUDE_EL0 (1U << 30)
-#define ARMV8_PMU_INCLUDE_EL2 (1U << 27)
-
-/*
- * PMUSERENR: user enable reg
- */
-#define ARMV8_PMU_USERENR_MASK 0xf /* Mask for writable bits */
-#define ARMV8_PMU_USERENR_EN (1 << 0) /* PMU regs can be accessed at EL0 */
-#define ARMV8_PMU_USERENR_SW (1 << 1) /* PMSWINC can be written at EL0 */
-#define ARMV8_PMU_USERENR_CR (1 << 2) /* Cycle counter can be read at EL0 */
-#define ARMV8_PMU_USERENR_ER (1 << 3) /* Event counter can be read at EL0 */
-
-/* PMMIR_EL1.SLOTS mask */
-#define ARMV8_PMU_SLOTS_MASK 0xff
-
-#define ARMV8_PMU_BUS_SLOTS_SHIFT 8
-#define ARMV8_PMU_BUS_SLOTS_MASK 0xff
-#define ARMV8_PMU_BUS_WIDTH_SHIFT 16
-#define ARMV8_PMU_BUS_WIDTH_MASK 0xf
-
#ifdef CONFIG_PERF_EVENTS
struct pt_regs;
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index ceba6792f5b3c..7c2bb4e724767 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/drivers/perf/Kconfig b/drivers/perf/Kconfig
index 66c259000a447..defe6b47854b0 100644
--- a/drivers/perf/Kconfig
+++ b/drivers/perf/Kconfig
@@ -100,6 +100,17 @@ config ARM_SMMU_V3_PMU
through the SMMU and allow the resulting information to be filtered
based on the Stream ID of the corresponding master.
+config ARM_PMUV3
+ depends on HW_PERF_EVENTS && ARM64
+ bool "ARM PMUv3 support" if !ARM64
+ default y
+ help
+ Say y if you want to use the ARM performance monitor unit (PMU)
+ version 3. The PMUv3 is the CPU performance monitors on ARMv8
+ (aarch32 and aarch64) systems that implement the PMUv3
+ architecture.
+ Currently, PMUv3 is only supported on aarch64 (arm64)
+
config ARM_DSU_PMU
tristate "ARM DynamIQ Shared Unit (DSU) PMU"
depends on ARM64
diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile
index 13e45da61100e..dabc859540ce9 100644
--- a/drivers/perf/Makefile
+++ b/drivers/perf/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_ARM_CMN) += arm-cmn.o
obj-$(CONFIG_ARM_DSU_PMU) += arm_dsu_pmu.o
obj-$(CONFIG_ARM_PMU) += arm_pmu.o arm_pmu_platform.o
obj-$(CONFIG_ARM_PMU_ACPI) += arm_pmu_acpi.o
+obj-$(CONFIG_ARM_PMUV3) += arm_pmuv3.o
obj-$(CONFIG_ARM_SMMU_V3_PMU) += arm_smmuv3_pmu.o
obj-$(CONFIG_FSL_IMX8_DDR_PMU) += fsl_imx8_ddr_perf.o
obj-$(CONFIG_HISI_PMU) += hisilicon/
diff --git a/arch/arm64/kernel/perf_event.c b/drivers/perf/arm_pmuv3.c
similarity index 99%
rename from arch/arm64/kernel/perf_event.c
rename to drivers/perf/arm_pmuv3.c
index a5193f2146a68..781364bf3f417 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/drivers/perf/arm_pmuv3.c
@@ -20,6 +20,7 @@
#include <linux/kvm_host.h>
#include <linux/of.h>
#include <linux/perf/arm_pmu.h>
+#include <linux/perf/arm_pmuv3.h>
#include <linux/platform_device.h>
#include <linux/sched_clock.h>
#include <linux/smp.h>
diff --git a/include/kvm/arm_pmu.h b/include/kvm/arm_pmu.h
index 628775334d5ef..1a6a695ca67a7 100644
--- a/include/kvm/arm_pmu.h
+++ b/include/kvm/arm_pmu.h
@@ -8,7 +8,7 @@
#define __ASM_ARM_KVM_PMU_H
#include <linux/perf_event.h>
-#include <asm/perf_event.h>
+#include <linux/perf/arm_pmuv3.h>
#define ARMV8_PMU_CYCLE_IDX (ARMV8_PMU_MAX_COUNTERS - 1)
diff --git a/include/linux/perf/arm_pmuv3.h b/include/linux/perf/arm_pmuv3.h
new file mode 100644
index 0000000000000..5bc9cd6826ea5
--- /dev/null
+++ b/include/linux/perf/arm_pmuv3.h
@@ -0,0 +1,270 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __PERF_ARM_PMUV3_H
+#define __PERF_ARM_PMUV3_H
+
+#define ARMV8_PMU_MAX_COUNTERS 32
+#define ARMV8_PMU_COUNTER_MASK (ARMV8_PMU_MAX_COUNTERS - 1)
+
+/*
+ * Common architectural and microarchitectural event numbers.
+ */
+#define ARMV8_PMUV3_PERFCTR_SW_INCR 0x0000
+#define ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL 0x0001
+#define ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL 0x0002
+#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL 0x0003
+#define ARMV8_PMUV3_PERFCTR_L1D_CACHE 0x0004
+#define ARMV8_PMUV3_PERFCTR_L1D_TLB_REFILL 0x0005
+#define ARMV8_PMUV3_PERFCTR_LD_RETIRED 0x0006
+#define ARMV8_PMUV3_PERFCTR_ST_RETIRED 0x0007
+#define ARMV8_PMUV3_PERFCTR_INST_RETIRED 0x0008
+#define ARMV8_PMUV3_PERFCTR_EXC_TAKEN 0x0009
+#define ARMV8_PMUV3_PERFCTR_EXC_RETURN 0x000A
+#define ARMV8_PMUV3_PERFCTR_CID_WRITE_RETIRED 0x000B
+#define ARMV8_PMUV3_PERFCTR_PC_WRITE_RETIRED 0x000C
+#define ARMV8_PMUV3_PERFCTR_BR_IMMED_RETIRED 0x000D
+#define ARMV8_PMUV3_PERFCTR_BR_RETURN_RETIRED 0x000E
+#define ARMV8_PMUV3_PERFCTR_UNALIGNED_LDST_RETIRED 0x000F
+#define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED 0x0010
+#define ARMV8_PMUV3_PERFCTR_CPU_CYCLES 0x0011
+#define ARMV8_PMUV3_PERFCTR_BR_PRED 0x0012
+#define ARMV8_PMUV3_PERFCTR_MEM_ACCESS 0x0013
+#define ARMV8_PMUV3_PERFCTR_L1I_CACHE 0x0014
+#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_WB 0x0015
+#define ARMV8_PMUV3_PERFCTR_L2D_CACHE 0x0016
+#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_REFILL 0x0017
+#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_WB 0x0018
+#define ARMV8_PMUV3_PERFCTR_BUS_ACCESS 0x0019
+#define ARMV8_PMUV3_PERFCTR_MEMORY_ERROR 0x001A
+#define ARMV8_PMUV3_PERFCTR_INST_SPEC 0x001B
+#define ARMV8_PMUV3_PERFCTR_TTBR_WRITE_RETIRED 0x001C
+#define ARMV8_PMUV3_PERFCTR_BUS_CYCLES 0x001D
+#define ARMV8_PMUV3_PERFCTR_CHAIN 0x001E
+#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_ALLOCATE 0x001F
+#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_ALLOCATE 0x0020
+#define ARMV8_PMUV3_PERFCTR_BR_RETIRED 0x0021
+#define ARMV8_PMUV3_PERFCTR_BR_MIS_PRED_RETIRED 0x0022
+#define ARMV8_PMUV3_PERFCTR_STALL_FRONTEND 0x0023
+#define ARMV8_PMUV3_PERFCTR_STALL_BACKEND 0x0024
+#define ARMV8_PMUV3_PERFCTR_L1D_TLB 0x0025
+#define ARMV8_PMUV3_PERFCTR_L1I_TLB 0x0026
+#define ARMV8_PMUV3_PERFCTR_L2I_CACHE 0x0027
+#define ARMV8_PMUV3_PERFCTR_L2I_CACHE_REFILL 0x0028
+#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_ALLOCATE 0x0029
+#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_REFILL 0x002A
+#define ARMV8_PMUV3_PERFCTR_L3D_CACHE 0x002B
+#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_WB 0x002C
+#define ARMV8_PMUV3_PERFCTR_L2D_TLB_REFILL 0x002D
+#define ARMV8_PMUV3_PERFCTR_L2I_TLB_REFILL 0x002E
+#define ARMV8_PMUV3_PERFCTR_L2D_TLB 0x002F
+#define ARMV8_PMUV3_PERFCTR_L2I_TLB 0x0030
+#define ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS 0x0031
+#define ARMV8_PMUV3_PERFCTR_LL_CACHE 0x0032
+#define ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS 0x0033
+#define ARMV8_PMUV3_PERFCTR_DTLB_WALK 0x0034
+#define ARMV8_PMUV3_PERFCTR_ITLB_WALK 0x0035
+#define ARMV8_PMUV3_PERFCTR_LL_CACHE_RD 0x0036
+#define ARMV8_PMUV3_PERFCTR_LL_CACHE_MISS_RD 0x0037
+#define ARMV8_PMUV3_PERFCTR_REMOTE_ACCESS_RD 0x0038
+#define ARMV8_PMUV3_PERFCTR_L1D_CACHE_LMISS_RD 0x0039
+#define ARMV8_PMUV3_PERFCTR_OP_RETIRED 0x003A
+#define ARMV8_PMUV3_PERFCTR_OP_SPEC 0x003B
+#define ARMV8_PMUV3_PERFCTR_STALL 0x003C
+#define ARMV8_PMUV3_PERFCTR_STALL_SLOT_BACKEND 0x003D
+#define ARMV8_PMUV3_PERFCTR_STALL_SLOT_FRONTEND 0x003E
+#define ARMV8_PMUV3_PERFCTR_STALL_SLOT 0x003F
+
+/* Statistical profiling extension microarchitectural events */
+#define ARMV8_SPE_PERFCTR_SAMPLE_POP 0x4000
+#define ARMV8_SPE_PERFCTR_SAMPLE_FEED 0x4001
+#define ARMV8_SPE_PERFCTR_SAMPLE_FILTRATE 0x4002
+#define ARMV8_SPE_PERFCTR_SAMPLE_COLLISION 0x4003
+
+/* AMUv1 architecture events */
+#define ARMV8_AMU_PERFCTR_CNT_CYCLES 0x4004
+#define ARMV8_AMU_PERFCTR_STALL_BACKEND_MEM 0x4005
+
+/* long-latency read miss events */
+#define ARMV8_PMUV3_PERFCTR_L1I_CACHE_LMISS 0x4006
+#define ARMV8_PMUV3_PERFCTR_L2D_CACHE_LMISS_RD 0x4009
+#define ARMV8_PMUV3_PERFCTR_L2I_CACHE_LMISS 0x400A
+#define ARMV8_PMUV3_PERFCTR_L3D_CACHE_LMISS_RD 0x400B
+
+/* Trace buffer events */
+#define ARMV8_PMUV3_PERFCTR_TRB_WRAP 0x400C
+#define ARMV8_PMUV3_PERFCTR_TRB_TRIG 0x400E
+
+/* Trace unit events */
+#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT0 0x4010
+#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT1 0x4011
+#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT2 0x4012
+#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT3 0x4013
+#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT4 0x4018
+#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT5 0x4019
+#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT6 0x401A
+#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT7 0x401B
+
+/* additional latency from alignment events */
+#define ARMV8_PMUV3_PERFCTR_LDST_ALIGN_LAT 0x4020
+#define ARMV8_PMUV3_PERFCTR_LD_ALIGN_LAT 0x4021
+#define ARMV8_PMUV3_PERFCTR_ST_ALIGN_LAT 0x4022
+
+/* Armv8.5 Memory Tagging Extension events */
+#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED 0x4024
+#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_RD 0x4025
+#define ARMV8_MTE_PERFCTR_MEM_ACCESS_CHECKED_WR 0x4026
+
+/* ARMv8 recommended implementation defined event types */
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD 0x0040
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR 0x0041
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_RD 0x0042
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_WR 0x0043
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_INNER 0x0044
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_REFILL_OUTER 0x0045
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_VICTIM 0x0046
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WB_CLEAN 0x0047
+#define ARMV8_IMPDEF_PERFCTR_L1D_CACHE_INVAL 0x0048
+
+#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_RD 0x004C
+#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_REFILL_WR 0x004D
+#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_RD 0x004E
+#define ARMV8_IMPDEF_PERFCTR_L1D_TLB_WR 0x004F
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_RD 0x0050
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WR 0x0051
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_RD 0x0052
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_REFILL_WR 0x0053
+
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_VICTIM 0x0056
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_WB_CLEAN 0x0057
+#define ARMV8_IMPDEF_PERFCTR_L2D_CACHE_INVAL 0x0058
+
+#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_RD 0x005C
+#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_REFILL_WR 0x005D
+#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_RD 0x005E
+#define ARMV8_IMPDEF_PERFCTR_L2D_TLB_WR 0x005F
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD 0x0060
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR 0x0061
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_SHARED 0x0062
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NOT_SHARED 0x0063
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_NORMAL 0x0064
+#define ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_PERIPH 0x0065
+#define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_RD 0x0066
+#define ARMV8_IMPDEF_PERFCTR_MEM_ACCESS_WR 0x0067
+#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LD_SPEC 0x0068
+#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_ST_SPEC 0x0069
+#define ARMV8_IMPDEF_PERFCTR_UNALIGNED_LDST_SPEC 0x006A
+
+#define ARMV8_IMPDEF_PERFCTR_LDREX_SPEC 0x006C
+#define ARMV8_IMPDEF_PERFCTR_STREX_PASS_SPEC 0x006D
+#define ARMV8_IMPDEF_PERFCTR_STREX_FAIL_SPEC 0x006E
+#define ARMV8_IMPDEF_PERFCTR_STREX_SPEC 0x006F
+#define ARMV8_IMPDEF_PERFCTR_LD_SPEC 0x0070
+#define ARMV8_IMPDEF_PERFCTR_ST_SPEC 0x0071
+#define ARMV8_IMPDEF_PERFCTR_LDST_SPEC 0x0072
+#define ARMV8_IMPDEF_PERFCTR_DP_SPEC 0x0073
+#define ARMV8_IMPDEF_PERFCTR_ASE_SPEC 0x0074
+#define ARMV8_IMPDEF_PERFCTR_VFP_SPEC 0x0075
+#define ARMV8_IMPDEF_PERFCTR_PC_WRITE_SPEC 0x0076
+#define ARMV8_IMPDEF_PERFCTR_CRYPTO_SPEC 0x0077
+#define ARMV8_IMPDEF_PERFCTR_BR_IMMED_SPEC 0x0078
+#define ARMV8_IMPDEF_PERFCTR_BR_RETURN_SPEC 0x0079
+#define ARMV8_IMPDEF_PERFCTR_BR_INDIRECT_SPEC 0x007A
+
+#define ARMV8_IMPDEF_PERFCTR_ISB_SPEC 0x007C
+#define ARMV8_IMPDEF_PERFCTR_DSB_SPEC 0x007D
+#define ARMV8_IMPDEF_PERFCTR_DMB_SPEC 0x007E
+
+#define ARMV8_IMPDEF_PERFCTR_EXC_UNDEF 0x0081
+#define ARMV8_IMPDEF_PERFCTR_EXC_SVC 0x0082
+#define ARMV8_IMPDEF_PERFCTR_EXC_PABORT 0x0083
+#define ARMV8_IMPDEF_PERFCTR_EXC_DABORT 0x0084
+
+#define ARMV8_IMPDEF_PERFCTR_EXC_IRQ 0x0086
+#define ARMV8_IMPDEF_PERFCTR_EXC_FIQ 0x0087
+#define ARMV8_IMPDEF_PERFCTR_EXC_SMC 0x0088
+
+#define ARMV8_IMPDEF_PERFCTR_EXC_HVC 0x008A
+#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_PABORT 0x008B
+#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_DABORT 0x008C
+#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_OTHER 0x008D
+#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_IRQ 0x008E
+#define ARMV8_IMPDEF_PERFCTR_EXC_TRAP_FIQ 0x008F
+#define ARMV8_IMPDEF_PERFCTR_RC_LD_SPEC 0x0090
+#define ARMV8_IMPDEF_PERFCTR_RC_ST_SPEC 0x0091
+
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_RD 0x00A0
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WR 0x00A1
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_RD 0x00A2
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_REFILL_WR 0x00A3
+
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_VICTIM 0x00A6
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_WB_CLEAN 0x00A7
+#define ARMV8_IMPDEF_PERFCTR_L3D_CACHE_INVAL 0x00A8
+
+/*
+ * Per-CPU PMCR: config reg
+ */
+#define ARMV8_PMU_PMCR_E (1 << 0) /* Enable all counters */
+#define ARMV8_PMU_PMCR_P (1 << 1) /* Reset all counters */
+#define ARMV8_PMU_PMCR_C (1 << 2) /* Cycle counter reset */
+#define ARMV8_PMU_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */
+#define ARMV8_PMU_PMCR_X (1 << 4) /* Export to ETM */
+#define ARMV8_PMU_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
+#define ARMV8_PMU_PMCR_LC (1 << 6) /* Overflow on 64 bit cycle counter */
+#define ARMV8_PMU_PMCR_LP (1 << 7) /* Long event counter enable */
+#define ARMV8_PMU_PMCR_N_SHIFT 11 /* Number of counters supported */
+#define ARMV8_PMU_PMCR_N_MASK 0x1f
+#define ARMV8_PMU_PMCR_MASK 0xff /* Mask for writable bits */
+
+/*
+ * PMOVSR: counters overflow flag status reg
+ */
+#define ARMV8_PMU_OVSR_MASK 0xffffffff /* Mask for writable bits */
+#define ARMV8_PMU_OVERFLOWED_MASK ARMV8_PMU_OVSR_MASK
+
+/*
+ * PMXEVTYPER: Event selection reg
+ */
+#define ARMV8_PMU_EVTYPE_MASK 0xc800ffff /* Mask for writable bits */
+#define ARMV8_PMU_EVTYPE_EVENT 0xffff /* Mask for EVENT bits */
+
+/*
+ * Event filters for PMUv3
+ */
+#define ARMV8_PMU_EXCLUDE_EL1 (1U << 31)
+#define ARMV8_PMU_EXCLUDE_EL0 (1U << 30)
+#define ARMV8_PMU_INCLUDE_EL2 (1U << 27)
+
+/*
+ * PMUSERENR: user enable reg
+ */
+#define ARMV8_PMU_USERENR_MASK 0xf /* Mask for writable bits */
+#define ARMV8_PMU_USERENR_EN (1 << 0) /* PMU regs can be accessed at EL0 */
+#define ARMV8_PMU_USERENR_SW (1 << 1) /* PMSWINC can be written at EL0 */
+#define ARMV8_PMU_USERENR_CR (1 << 2) /* Cycle counter can be read at EL0 */
+#define ARMV8_PMU_USERENR_ER (1 << 3) /* Event counter can be read at EL0 */
+
+/* PMMIR_EL1.SLOTS mask */
+#define ARMV8_PMU_SLOTS_MASK 0xff
+
+#define ARMV8_PMU_BUS_SLOTS_SHIFT 8
+#define ARMV8_PMU_BUS_SLOTS_MASK 0xff
+#define ARMV8_PMU_BUS_WIDTH_SHIFT 16
+#define ARMV8_PMU_BUS_WIDTH_MASK 0xf
+
+#endif
--
2.39.1.581.gbfd45094c4-goog
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