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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-06 11:51:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-06 11:51:49 -0700
commit18fd049731e67651009f316195da9281b756f2cf (patch)
tree082c87950f33bc466672ea3fd2ea24e5b2a37253 /drivers
parent41fc64a0550b86f4428e8d3fa23ab97678a65ae8 (diff)
parentd2995249a2f72333a4ab4922ff3c42a76c023791 (diff)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas: - arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE vector granule register added to the user regs together with SVE perf extensions documentation. - SVE updates: add HWCAP for SVE EBF16, update the SVE ABI documentation to match the actual kernel behaviour (zeroing the registers on syscall rather than "zeroed or preserved" previously). - More conversions to automatic system registers generation. - vDSO: use self-synchronising virtual counter access in gettimeofday() if the architecture supports it. - arm64 stacktrace cleanups and improvements. - arm64 atomics improvements: always inline assembly, remove LL/SC trampolines. - Improve the reporting of EL1 exceptions: rework BTI and FPAC exception handling, better EL1 undefs reporting. - Cortex-A510 erratum 2658417: remove BF16 support due to incorrect result. - arm64 defconfig updates: build CoreSight as a module, enable options necessary for docker, memory hotplug/hotremove, enable all PMUs provided by Arm. - arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME extensions). - arm64 ftraces updates/fixes: fix module PLTs with mcount, remove unused function. - kselftest updates for arm64: simple HWCAP validation, FP stress test improvements, validation of ZA regs in signal handlers, include larger SVE and SME vector lengths in signal tests, various cleanups. - arm64 alternatives (code patching) improvements to robustness and consistency: replace cpucap static branches with equivalent alternatives, associate callback alternatives with a cpucap. - Miscellaneous updates: optimise kprobe performance of patching single-step slots, simplify uaccess_mask_ptr(), move MTE registers initialisation to C, support huge vmalloc() mappings, run softirqs on the per-CPU IRQ stack, compat (arm32) misalignment fixups for multiword accesses. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (126 commits) arm64: alternatives: Use vdso/bits.h instead of linux/bits.h arm64/kprobe: Optimize the performance of patching single-step slot arm64: defconfig: Add Coresight as module kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs arm64/mm: fold check for KFENCE into can_set_direct_map() arm64: ftrace: fix module PLTs with mcount arm64: module: Remove unused plt_entry_is_initialized() arm64: module: Make plt_equals_entry() static arm64: fix the build with binutils 2.27 kselftest/arm64: Don't enable v8.5 for MTE selftest builds arm64: uaccess: simplify uaccess_mask_ptr() arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header kselftest/arm64: Fix typo in hwcap check arm64: mte: move register initialization to C arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate() arm64: dma: Drop cache invalidation from arch_dma_prep_coherent() arm64/sve: Add Perf extensions documentation ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/firmware/efi/libstub/arm64-stub.c4
-rw-r--r--drivers/hwtracing/coresight/coresight-etm4x-core.c4
-rw-r--r--drivers/hwtracing/coresight/coresight-trbe.h3
-rw-r--r--drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c6
-rw-r--r--drivers/irqchip/irq-gic-v4.c2
-rw-r--r--drivers/perf/Kconfig7
-rw-r--r--drivers/perf/Makefile1
-rw-r--r--drivers/perf/alibaba_uncore_drw_pmu.c810
-rw-r--r--drivers/perf/arm_pmu.c2
-rw-r--r--drivers/perf/arm_spe_pmu.c6
10 files changed, 832 insertions, 13 deletions
diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c
index 577173ee1f83..60973e84d7ab 100644
--- a/drivers/firmware/efi/libstub/arm64-stub.c
+++ b/drivers/firmware/efi/libstub/arm64-stub.c
@@ -23,8 +23,8 @@ efi_status_t check_platform_features(void)
if (IS_ENABLED(CONFIG_ARM64_4K_PAGES))
return EFI_SUCCESS;
- tg = (read_cpuid(ID_AA64MMFR0_EL1) >> ID_AA64MMFR0_TGRAN_SHIFT) & 0xf;
- if (tg < ID_AA64MMFR0_TGRAN_SUPPORTED_MIN || tg > ID_AA64MMFR0_TGRAN_SUPPORTED_MAX) {
+ tg = (read_cpuid(ID_AA64MMFR0_EL1) >> ID_AA64MMFR0_EL1_TGRAN_SHIFT) & 0xf;
+ if (tg < ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MIN || tg > ID_AA64MMFR0_EL1_TGRAN_SUPPORTED_MAX) {
if (IS_ENABLED(CONFIG_ARM64_64K_PAGES))
efi_err("This 64 KB granular kernel is not supported by your CPU\n");
else
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index d39660a3e50c..80fefaba58ee 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -966,7 +966,7 @@ static inline bool cpu_supports_sysreg_trace(void)
{
u64 dfr0 = read_sysreg_s(SYS_ID_AA64DFR0_EL1);
- return ((dfr0 >> ID_AA64DFR0_TRACEVER_SHIFT) & 0xfUL) > 0;
+ return ((dfr0 >> ID_AA64DFR0_EL1_TraceVer_SHIFT) & 0xfUL) > 0;
}
static bool etm4_init_sysreg_access(struct etmv4_drvdata *drvdata,
@@ -1054,7 +1054,7 @@ static void cpu_detect_trace_filtering(struct etmv4_drvdata *drvdata)
u64 trfcr;
drvdata->trfcr = 0;
- if (!cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_TRACE_FILT_SHIFT))
+ if (!cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_EL1_TraceFilt_SHIFT))
return;
/*
diff --git a/drivers/hwtracing/coresight/coresight-trbe.h b/drivers/hwtracing/coresight/coresight-trbe.h
index 30e4d7db4f8e..98ff1b17ad07 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.h
+++ b/drivers/hwtracing/coresight/coresight-trbe.h
@@ -20,7 +20,8 @@
static inline bool is_trbe_available(void)
{
u64 aa64dfr0 = read_sysreg_s(SYS_ID_AA64DFR0_EL1);
- unsigned int trbe = cpuid_feature_extract_unsigned_field(aa64dfr0, ID_AA64DFR0_TRBE_SHIFT);
+ unsigned int trbe = cpuid_feature_extract_unsigned_field(aa64dfr0,
+ ID_AA64DFR0_EL1_TraceBuffer_SHIFT);
return trbe >= 0b0001;
}
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
index 1ef7bbb4acf3..5968a568aae2 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
@@ -150,7 +150,7 @@ static struct arm_smmu_ctx_desc *arm_smmu_alloc_shared_cd(struct mm_struct *mm)
}
reg = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
- par = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_PARANGE_SHIFT);
+ par = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_EL1_PARANGE_SHIFT);
tcr |= FIELD_PREP(CTXDESC_CD_0_TCR_IPS, par);
cd->ttbr = virt_to_phys(mm->pgd);
@@ -425,13 +425,13 @@ bool arm_smmu_sva_supported(struct arm_smmu_device *smmu)
* addresses larger than what we support.
*/
reg = read_sanitised_ftr_reg(SYS_ID_AA64MMFR0_EL1);
- fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_PARANGE_SHIFT);
+ fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_EL1_PARANGE_SHIFT);
oas = id_aa64mmfr0_parange_to_phys_shift(fld);
if (smmu->oas < oas)
return false;
/* We can support bigger ASIDs than the CPU, but not smaller */
- fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_ASID_SHIFT);
+ fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR0_EL1_ASIDBITS_SHIFT);
asid_bits = fld ? 16 : 8;
if (smmu->asid_bits < asid_bits)
return false;
diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
index 4ea71b28f9f5..a6277dea4c7a 100644
--- a/drivers/irqchip/irq-gic-v4.c
+++ b/drivers/irqchip/irq-gic-v4.c
@@ -94,7 +94,7 @@ bool gic_cpuif_has_vsgi(void)
{
unsigned long fld, reg = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);
- fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64PFR0_GIC_SHIFT);
+ fld = cpuid_feature_extract_unsigned_field(reg, ID_AA64PFR0_EL1_GIC_SHIFT);
return fld >= 0x3;
}
diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
index 1e2d69453771..44c07ea487f4 100644
--- a/drivers/perf/Kconfig
+++ b/drivers/perf/Kconfig
@@ -183,6 +183,13 @@ config APPLE_M1_CPU_PMU
Provides support for the non-architectural CPU PMUs present on
the Apple M1 SoCs and derivatives.
+config ALIBABA_UNCORE_DRW_PMU
+ tristate "Alibaba T-Head Yitian 710 DDR Sub-system Driveway PMU driver"
+ depends on ARM64 || COMPILE_TEST
+ help
+ Support for Driveway PMU events monitoring on Yitian 710 DDR
+ Sub-system.
+
source "drivers/perf/hisilicon/Kconfig"
config MARVELL_CN10K_DDR_PMU
diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile
index 57a279c61df5..050d04ee19dd 100644
--- a/drivers/perf/Makefile
+++ b/drivers/perf/Makefile
@@ -20,3 +20,4 @@ obj-$(CONFIG_ARM_DMC620_PMU) += arm_dmc620_pmu.o
obj-$(CONFIG_MARVELL_CN10K_TAD_PMU) += marvell_cn10k_tad_pmu.o
obj-$(CONFIG_MARVELL_CN10K_DDR_PMU) += marvell_cn10k_ddr_pmu.o
obj-$(CONFIG_APPLE_M1_CPU_PMU) += apple_m1_cpu_pmu.o
+obj-$(CONFIG_ALIBABA_UNCORE_DRW_PMU) += alibaba_uncore_drw_pmu.o
diff --git a/drivers/perf/alibaba_uncore_drw_pmu.c b/drivers/perf/alibaba_uncore_drw_pmu.c
new file mode 100644
index 000000000000..82729b874f09
--- /dev/null
+++ b/drivers/perf/alibaba_uncore_drw_pmu.c
@@ -0,0 +1,810 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Alibaba DDR Sub-System Driveway PMU driver
+ *
+ * Copyright (C) 2022 Alibaba Inc
+ */
+
+#define ALI_DRW_PMUNAME "ali_drw"
+#define ALI_DRW_DRVNAME ALI_DRW_PMUNAME "_pmu"
+#define pr_fmt(fmt) ALI_DRW_DRVNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/bitfield.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/cpuhotplug.h>
+#include <linux/cpumask.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/perf_event.h>
+#include <linux/platform_device.h>
+#include <linux/printk.h>
+#include <linux/rculist.h>
+#include <linux/refcount.h>
+
+
+#define ALI_DRW_PMU_COMMON_MAX_COUNTERS 16
+#define ALI_DRW_PMU_TEST_SEL_COMMON_COUNTER_BASE 19
+
+#define ALI_DRW_PMU_PA_SHIFT 12
+#define ALI_DRW_PMU_CNT_INIT 0x00000000
+#define ALI_DRW_CNT_MAX_PERIOD 0xffffffff
+#define ALI_DRW_PMU_CYCLE_EVT_ID 0x80
+
+#define ALI_DRW_PMU_CNT_CTRL 0xC00
+#define ALI_DRW_PMU_CNT_RST BIT(2)
+#define ALI_DRW_PMU_CNT_STOP BIT(1)
+#define ALI_DRW_PMU_CNT_START BIT(0)
+
+#define ALI_DRW_PMU_CNT_STATE 0xC04
+#define ALI_DRW_PMU_TEST_CTRL 0xC08
+#define ALI_DRW_PMU_CNT_PRELOAD 0xC0C
+
+#define ALI_DRW_PMU_CYCLE_CNT_HIGH_MASK GENMASK(23, 0)
+#define ALI_DRW_PMU_CYCLE_CNT_LOW_MASK GENMASK(31, 0)
+#define ALI_DRW_PMU_CYCLE_CNT_HIGH 0xC10
+#define ALI_DRW_PMU_CYCLE_CNT_LOW 0xC14
+
+/* PMU EVENT SEL 0-3 are paired in 32-bit registers on a 4-byte stride */
+#define ALI_DRW_PMU_EVENT_SEL0 0xC68
+/* counter 0-3 use sel0, counter 4-7 use sel1...*/
+#define ALI_DRW_PMU_EVENT_SELn(n) \
+ (ALI_DRW_PMU_EVENT_SEL0 + (n / 4) * 0x4)
+#define ALI_DRW_PMCOM_CNT_EN BIT(7)
+#define ALI_DRW_PMCOM_CNT_EVENT_MASK GENMASK(5, 0)
+#define ALI_DRW_PMCOM_CNT_EVENT_OFFSET(n) \
+ (8 * (n % 4))
+
+/* PMU COMMON COUNTER 0-15, are paired in 32-bit registers on a 4-byte stride */
+#define ALI_DRW_PMU_COMMON_COUNTER0 0xC78
+#define ALI_DRW_PMU_COMMON_COUNTERn(n) \
+ (ALI_DRW_PMU_COMMON_COUNTER0 + 0x4 * (n))
+
+#define ALI_DRW_PMU_OV_INTR_ENABLE_CTL 0xCB8
+#define ALI_DRW_PMU_OV_INTR_DISABLE_CTL 0xCBC
+#define ALI_DRW_PMU_OV_INTR_ENABLE_STATUS 0xCC0
+#define ALI_DRW_PMU_OV_INTR_CLR 0xCC4
+#define ALI_DRW_PMU_OV_INTR_STATUS 0xCC8
+#define ALI_DRW_PMCOM_CNT_OV_INTR_MASK GENMASK(23, 8)
+#define ALI_DRW_PMBW_CNT_OV_INTR_MASK GENMASK(7, 0)
+#define ALI_DRW_PMU_OV_INTR_MASK GENMASK_ULL(63, 0)
+
+static int ali_drw_cpuhp_state_num;
+
+static LIST_HEAD(ali_drw_pmu_irqs);
+static DEFINE_MUTEX(ali_drw_pmu_irqs_lock);
+
+struct ali_drw_pmu_irq {
+ struct hlist_node node;
+ struct list_head irqs_node;
+ struct list_head pmus_node;
+ int irq_num;
+ int cpu;
+ refcount_t refcount;
+};
+
+struct ali_drw_pmu {
+ void __iomem *cfg_base;
+ struct device *dev;
+
+ struct list_head pmus_node;
+ struct ali_drw_pmu_irq *irq;
+ int irq_num;
+ int cpu;
+ DECLARE_BITMAP(used_mask, ALI_DRW_PMU_COMMON_MAX_COUNTERS);
+ struct perf_event *events[ALI_DRW_PMU_COMMON_MAX_COUNTERS];
+ int evtids[ALI_DRW_PMU_COMMON_MAX_COUNTERS];
+
+ struct pmu pmu;
+};
+
+#define to_ali_drw_pmu(p) (container_of(p, struct ali_drw_pmu, pmu))
+
+#define DRW_CONFIG_EVENTID GENMASK(7, 0)
+#define GET_DRW_EVENTID(event) FIELD_GET(DRW_CONFIG_EVENTID, (event)->attr.config)
+
+static ssize_t ali_drw_pmu_format_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct dev_ext_attribute *eattr;
+
+ eattr = container_of(attr, struct dev_ext_attribute, attr);
+
+ return sprintf(buf, "%s\n", (char *)eattr->var);
+}
+
+/*
+ * PMU event attributes
+ */
+static ssize_t ali_drw_pmu_event_show(struct device *dev,
+ struct device_attribute *attr, char *page)
+{
+ struct dev_ext_attribute *eattr;
+
+ eattr = container_of(attr, struct dev_ext_attribute, attr);
+
+ return sprintf(page, "config=0x%lx\n", (unsigned long)eattr->var);
+}
+
+#define ALI_DRW_PMU_ATTR(_name, _func, _config) \
+ (&((struct dev_ext_attribute[]) { \
+ { __ATTR(_name, 0444, _func, NULL), (void *)_config } \
+ })[0].attr.attr)
+
+#define ALI_DRW_PMU_FORMAT_ATTR(_name, _config) \
+ ALI_DRW_PMU_ATTR(_name, ali_drw_pmu_format_show, (void *)_config)
+#define ALI_DRW_PMU_EVENT_ATTR(_name, _config) \
+ ALI_DRW_PMU_ATTR(_name, ali_drw_pmu_event_show, (unsigned long)_config)
+
+static struct attribute *ali_drw_pmu_events_attrs[] = {
+ ALI_DRW_PMU_EVENT_ATTR(hif_rd_or_wr, 0x0),
+ ALI_DRW_PMU_EVENT_ATTR(hif_wr, 0x1),
+ ALI_DRW_PMU_EVENT_ATTR(hif_rd, 0x2),
+ ALI_DRW_PMU_EVENT_ATTR(hif_rmw, 0x3),
+ ALI_DRW_PMU_EVENT_ATTR(hif_hi_pri_rd, 0x4),
+ ALI_DRW_PMU_EVENT_ATTR(dfi_wr_data_cycles, 0x7),
+ ALI_DRW_PMU_EVENT_ATTR(dfi_rd_data_cycles, 0x8),
+ ALI_DRW_PMU_EVENT_ATTR(hpr_xact_when_critical, 0x9),
+ ALI_DRW_PMU_EVENT_ATTR(lpr_xact_when_critical, 0xA),
+ ALI_DRW_PMU_EVENT_ATTR(wr_xact_when_critical, 0xB),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_activate, 0xC),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_rd_or_wr, 0xD),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_rd_activate, 0xE),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_rd, 0xF),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_wr, 0x10),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_mwr, 0x11),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_precharge, 0x12),
+ ALI_DRW_PMU_EVENT_ATTR(precharge_for_rdwr, 0x13),
+ ALI_DRW_PMU_EVENT_ATTR(precharge_for_other, 0x14),
+ ALI_DRW_PMU_EVENT_ATTR(rdwr_transitions, 0x15),
+ ALI_DRW_PMU_EVENT_ATTR(write_combine, 0x16),
+ ALI_DRW_PMU_EVENT_ATTR(war_hazard, 0x17),
+ ALI_DRW_PMU_EVENT_ATTR(raw_hazard, 0x18),
+ ALI_DRW_PMU_EVENT_ATTR(waw_hazard, 0x19),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_selfref_rk0, 0x1A),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_selfref_rk1, 0x1B),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_selfref_rk2, 0x1C),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_selfref_rk3, 0x1D),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_powerdown_rk0, 0x1E),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_powerdown_rk1, 0x1F),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_powerdown_rk2, 0x20),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_enter_powerdown_rk3, 0x21),
+ ALI_DRW_PMU_EVENT_ATTR(selfref_mode_rk0, 0x26),
+ ALI_DRW_PMU_EVENT_ATTR(selfref_mode_rk1, 0x27),
+ ALI_DRW_PMU_EVENT_ATTR(selfref_mode_rk2, 0x28),
+ ALI_DRW_PMU_EVENT_ATTR(selfref_mode_rk3, 0x29),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_refresh, 0x2A),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_crit_ref, 0x2B),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_load_mode, 0x2D),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_zqcl, 0x2E),
+ ALI_DRW_PMU_EVENT_ATTR(visible_window_limit_reached_rd, 0x30),
+ ALI_DRW_PMU_EVENT_ATTR(visible_window_limit_reached_wr, 0x31),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_dqsosc_mpc, 0x34),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_dqsosc_mrr, 0x35),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_tcr_mrr, 0x36),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_zqstart, 0x37),
+ ALI_DRW_PMU_EVENT_ATTR(op_is_zqlatch, 0x38),
+ ALI_DRW_PMU_EVENT_ATTR(chi_txreq, 0x39),
+ ALI_DRW_PMU_EVENT_ATTR(chi_txdat, 0x3A),
+ ALI_DRW_PMU_EVENT_ATTR(chi_rxdat, 0x3B),
+ ALI_DRW_PMU_EVENT_ATTR(chi_rxrsp, 0x3C),
+ ALI_DRW_PMU_EVENT_ATTR(tsz_vio, 0x3D),
+ ALI_DRW_PMU_EVENT_ATTR(cycle, 0x80),
+ NULL,
+};
+
+static struct attribute_group ali_drw_pmu_events_attr_group = {
+ .name = "events",
+ .attrs = ali_drw_pmu_events_attrs,
+};
+
+static struct attribute *ali_drw_pmu_format_attr[] = {
+ ALI_DRW_PMU_FORMAT_ATTR(event, "config:0-7"),
+ NULL,
+};
+
+static const struct attribute_group ali_drw_pmu_format_group = {
+ .name = "format",
+ .attrs = ali_drw_pmu_format_attr,
+};
+
+static ssize_t ali_drw_pmu_cpumask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(dev_get_drvdata(dev));
+
+ return cpumap_print_to_pagebuf(true, buf, cpumask_of(drw_pmu->cpu));
+}
+
+static struct device_attribute ali_drw_pmu_cpumask_attr =
+ __ATTR(cpumask, 0444, ali_drw_pmu_cpumask_show, NULL);
+
+static struct attribute *ali_drw_pmu_cpumask_attrs[] = {
+ &ali_drw_pmu_cpumask_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group ali_drw_pmu_cpumask_attr_group = {
+ .attrs = ali_drw_pmu_cpumask_attrs,
+};
+
+static const struct attribute_group *ali_drw_pmu_attr_groups[] = {
+ &ali_drw_pmu_events_attr_group,
+ &ali_drw_pmu_cpumask_attr_group,
+ &ali_drw_pmu_format_group,
+ NULL,
+};
+
+/* find a counter for event, then in add func, hw.idx will equal to counter */
+static int ali_drw_get_counter_idx(struct perf_event *event)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ int idx;
+
+ for (idx = 0; idx < ALI_DRW_PMU_COMMON_MAX_COUNTERS; ++idx) {
+ if (!test_and_set_bit(idx, drw_pmu->used_mask))
+ return idx;
+ }
+
+ /* The counters are all in use. */
+ return -EBUSY;
+}
+
+static u64 ali_drw_pmu_read_counter(struct perf_event *event)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ u64 cycle_high, cycle_low;
+
+ if (GET_DRW_EVENTID(event) == ALI_DRW_PMU_CYCLE_EVT_ID) {
+ cycle_high = readl(drw_pmu->cfg_base + ALI_DRW_PMU_CYCLE_CNT_HIGH);
+ cycle_high &= ALI_DRW_PMU_CYCLE_CNT_HIGH_MASK;
+ cycle_low = readl(drw_pmu->cfg_base + ALI_DRW_PMU_CYCLE_CNT_LOW);
+ cycle_low &= ALI_DRW_PMU_CYCLE_CNT_LOW_MASK;
+ return (cycle_high << 32 | cycle_low);
+ }
+
+ return readl(drw_pmu->cfg_base +
+ ALI_DRW_PMU_COMMON_COUNTERn(event->hw.idx));
+}
+
+static void ali_drw_pmu_event_update(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 delta, prev, now;
+
+ do {
+ prev = local64_read(&hwc->prev_count);
+ now = ali_drw_pmu_read_counter(event);
+ } while (local64_cmpxchg(&hwc->prev_count, prev, now) != prev);
+
+ /* handle overflow. */
+ delta = now - prev;
+ if (GET_DRW_EVENTID(event) == ALI_DRW_PMU_CYCLE_EVT_ID)
+ delta &= ALI_DRW_PMU_OV_INTR_MASK;
+ else
+ delta &= ALI_DRW_CNT_MAX_PERIOD;
+ local64_add(delta, &event->count);
+}
+
+static void ali_drw_pmu_event_set_period(struct perf_event *event)
+{
+ u64 pre_val;
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+
+ /* set a preload counter for test purpose */
+ writel(ALI_DRW_PMU_TEST_SEL_COMMON_COUNTER_BASE + event->hw.idx,
+ drw_pmu->cfg_base + ALI_DRW_PMU_TEST_CTRL);
+
+ /* set conunter initial value */
+ pre_val = ALI_DRW_PMU_CNT_INIT;
+ writel(pre_val, drw_pmu->cfg_base + ALI_DRW_PMU_CNT_PRELOAD);
+ local64_set(&event->hw.prev_count, pre_val);
+
+ /* set sel mode to zero to start test */
+ writel(0x0, drw_pmu->cfg_base + ALI_DRW_PMU_TEST_CTRL);
+}
+
+static void ali_drw_pmu_enable_counter(struct perf_event *event)
+{
+ u32 val, subval, reg, shift;
+ int counter = event->hw.idx;
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+
+ reg = ALI_DRW_PMU_EVENT_SELn(counter);
+ val = readl(drw_pmu->cfg_base + reg);
+ subval = FIELD_PREP(ALI_DRW_PMCOM_CNT_EN, 1) |
+ FIELD_PREP(ALI_DRW_PMCOM_CNT_EVENT_MASK, drw_pmu->evtids[counter]);
+
+ shift = ALI_DRW_PMCOM_CNT_EVENT_OFFSET(counter);
+ val &= ~(GENMASK(7, 0) << shift);
+ val |= subval << shift;
+
+ writel(val, drw_pmu->cfg_base + reg);
+}
+
+static void ali_drw_pmu_disable_counter(struct perf_event *event)
+{
+ u32 val, reg, subval, shift;
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ int counter = event->hw.idx;
+
+ reg = ALI_DRW_PMU_EVENT_SELn(counter);
+ val = readl(drw_pmu->cfg_base + reg);
+ subval = FIELD_PREP(ALI_DRW_PMCOM_CNT_EN, 0) |
+ FIELD_PREP(ALI_DRW_PMCOM_CNT_EVENT_MASK, 0);
+
+ shift = ALI_DRW_PMCOM_CNT_EVENT_OFFSET(counter);
+ val &= ~(GENMASK(7, 0) << shift);
+ val |= subval << shift;
+
+ writel(val, drw_pmu->cfg_base + reg);
+}
+
+static irqreturn_t ali_drw_pmu_isr(int irq_num, void *data)
+{
+ struct ali_drw_pmu_irq *irq = data;
+ struct ali_drw_pmu *drw_pmu;
+ irqreturn_t ret = IRQ_NONE;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(drw_pmu, &irq->pmus_node, pmus_node) {
+ unsigned long status, clr_status;
+ struct perf_event *event;
+ unsigned int idx;
+
+ for (idx = 0; idx < ALI_DRW_PMU_COMMON_MAX_COUNTERS; idx++) {
+ event = drw_pmu->events[idx];
+ if (!event)
+ continue;
+ ali_drw_pmu_disable_counter(event);
+ }
+
+ /* common counter intr status */
+ status = readl(drw_pmu->cfg_base + ALI_DRW_PMU_OV_INTR_STATUS);
+ status = FIELD_GET(ALI_DRW_PMCOM_CNT_OV_INTR_MASK, status);
+ if (status) {
+ for_each_set_bit(idx, &status,
+ ALI_DRW_PMU_COMMON_MAX_COUNTERS) {
+ event = drw_pmu->events[idx];
+ if (WARN_ON_ONCE(!event))
+ continue;
+ ali_drw_pmu_event_update(event);
+ ali_drw_pmu_event_set_period(event);
+ }
+
+ /* clear common counter intr status */
+ clr_status = FIELD_PREP(ALI_DRW_PMCOM_CNT_OV_INTR_MASK, 1);
+ writel(clr_status,
+ drw_pmu->cfg_base + ALI_DRW_PMU_OV_INTR_CLR);
+ }
+
+ for (idx = 0; idx < ALI_DRW_PMU_COMMON_MAX_COUNTERS; idx++) {
+ event = drw_pmu->events[idx];
+ if (!event)
+ continue;
+ if (!(event->hw.state & PERF_HES_STOPPED))
+ ali_drw_pmu_enable_counter(event);
+ }
+ if (status)
+ ret = IRQ_HANDLED;
+ }
+ rcu_read_unlock();
+ return ret;
+}
+
+static struct ali_drw_pmu_irq *__ali_drw_pmu_init_irq(struct platform_device
+ *pdev, int irq_num)
+{
+ int ret;
+ struct ali_drw_pmu_irq *irq;
+
+ list_for_each_entry(irq, &ali_drw_pmu_irqs, irqs_node) {
+ if (irq->irq_num == irq_num
+ && refcount_inc_not_zero(&irq->refcount))
+ return irq;
+ }
+
+ irq = kzalloc(sizeof(*irq), GFP_KERNEL);
+ if (!irq)
+ return ERR_PTR(-ENOMEM);
+
+ INIT_LIST_HEAD(&irq->pmus_node);
+
+ /* Pick one CPU to be the preferred one to use */
+ irq->cpu = smp_processor_id();
+ refcount_set(&irq->refcount, 1);
+
+ /*
+ * FIXME: one of DDRSS Driveway PMU overflow interrupt shares the same
+ * irq number with MPAM ERR_IRQ. To register DDRSS PMU and MPAM drivers
+ * successfully, add IRQF_SHARED flag. Howerer, PMU interrupt should not
+ * share with other component.
+ */
+ ret = devm_request_irq(&pdev->dev, irq_num, ali_drw_pmu_isr,
+ IRQF_SHARED, dev_name(&pdev->dev), irq);
+ if (ret < 0) {
+ dev_err(&pdev->dev,
+ "Fail to request IRQ:%d ret:%d\n", irq_num, ret);
+ goto out_free;
+ }
+
+ ret = irq_set_affinity_hint(irq_num, cpumask_of(irq->cpu));
+ if (ret)
+ goto out_free;
+
+ ret = cpuhp_state_add_instance_nocalls(ali_drw_cpuhp_state_num,
+ &irq->node);
+ if (ret)
+ goto out_free;
+
+ irq->irq_num = irq_num;
+ list_add(&irq->irqs_node, &ali_drw_pmu_irqs);
+
+ return irq;
+
+out_free:
+ kfree(irq);
+ return ERR_PTR(ret);
+}
+
+static int ali_drw_pmu_init_irq(struct ali_drw_pmu *drw_pmu,
+ struct platform_device *pdev)
+{
+ int irq_num;
+ struct ali_drw_pmu_irq *irq;
+
+ /* Read and init IRQ */
+ irq_num = platform_get_irq(pdev, 0);
+ if (irq_num < 0)
+ return irq_num;
+
+ mutex_lock(&ali_drw_pmu_irqs_lock);
+ irq = __ali_drw_pmu_init_irq(pdev, irq_num);
+ mutex_unlock(&ali_drw_pmu_irqs_lock);
+
+ if (IS_ERR(irq))
+ return PTR_ERR(irq);
+
+ drw_pmu->irq = irq;
+
+ mutex_lock(&ali_drw_pmu_irqs_lock);
+ list_add_rcu(&drw_pmu->pmus_node, &irq->pmus_node);
+ mutex_unlock(&ali_drw_pmu_irqs_lock);
+
+ return 0;
+}
+
+static void ali_drw_pmu_uninit_irq(struct ali_drw_pmu *drw_pmu)
+{
+ struct ali_drw_pmu_irq *irq = drw_pmu->irq;
+
+ mutex_lock(&ali_drw_pmu_irqs_lock);
+ list_del_rcu(&drw_pmu->pmus_node);
+
+ if (!refcount_dec_and_test(&irq->refcount)) {
+ mutex_unlock(&ali_drw_pmu_irqs_lock);
+ return;
+ }
+
+ list_del(&irq->irqs_node);
+ mutex_unlock(&ali_drw_pmu_irqs_lock);
+
+ WARN_ON(irq_set_affinity_hint(irq->irq_num, NULL));
+ cpuhp_state_remove_instance_nocalls(ali_drw_cpuhp_state_num,
+ &irq->node);
+ kfree(irq);
+}
+
+static int ali_drw_pmu_event_init(struct perf_event *event)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_event *sibling;
+ struct device *dev = drw_pmu->pmu.dev;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ if (is_sampling_event(event)) {
+ dev_err(dev, "Sampling not supported!\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (event->attach_state & PERF_ATTACH_TASK) {
+ dev_err(dev, "Per-task counter cannot allocate!\n");
+ return -EOPNOTSUPP;
+ }
+
+ event->cpu = drw_pmu->cpu;
+ if (event->cpu < 0) {
+ dev_err(dev, "Per-task mode not supported!\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (event->group_leader != event &&
+ !is_software_event(event->group_leader)) {
+ dev_err(dev, "driveway only allow one event!\n");
+ return -EINVAL;
+ }
+
+ for_each_sibling_event(sibling, event->group_leader) {
+ if (sibling != event && !is_software_event(sibling)) {
+ dev_err(dev, "driveway event not allowed!\n");
+ return -EINVAL;
+ }
+ }
+
+ /* reset all the pmu counters */
+ writel(ALI_DRW_PMU_CNT_RST, drw_pmu->cfg_base + ALI_DRW_PMU_CNT_CTRL);
+
+ hwc->idx = -1;
+
+ return 0;
+}
+
+static void ali_drw_pmu_start(struct perf_event *event, int flags)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+
+ event->hw.state = 0;
+
+ if (GET_DRW_EVENTID(event) == ALI_DRW_PMU_CYCLE_EVT_ID) {
+ writel(ALI_DRW_PMU_CNT_START,
+ drw_pmu->cfg_base + ALI_DRW_PMU_CNT_CTRL);
+ return;
+ }
+
+ ali_drw_pmu_event_set_period(event);
+ if (flags & PERF_EF_RELOAD) {
+ unsigned long prev_raw_count =
+ local64_read(&event->hw.prev_count);
+ writel(prev_raw_count,
+ drw_pmu->cfg_base + ALI_DRW_PMU_CNT_PRELOAD);
+ }
+
+ ali_drw_pmu_enable_counter(event);
+
+ writel(ALI_DRW_PMU_CNT_START, drw_pmu->cfg_base + ALI_DRW_PMU_CNT_CTRL);
+}
+
+static void ali_drw_pmu_stop(struct perf_event *event, int flags)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+
+ if (event->hw.state & PERF_HES_STOPPED)
+ return;
+
+ if (GET_DRW_EVENTID(event) != ALI_DRW_PMU_CYCLE_EVT_ID)
+ ali_drw_pmu_disable_counter(event);
+
+ writel(ALI_DRW_PMU_CNT_STOP, drw_pmu->cfg_base + ALI_DRW_PMU_CNT_CTRL);
+
+ ali_drw_pmu_event_update(event);
+ event->hw.state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
+}
+
+static int ali_drw_pmu_add(struct perf_event *event, int flags)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = -1;
+ int evtid;
+
+ evtid = GET_DRW_EVENTID(event);
+
+ if (evtid != ALI_DRW_PMU_CYCLE_EVT_ID) {
+ idx = ali_drw_get_counter_idx(event);
+ if (idx < 0)
+ return idx;
+ drw_pmu->events[idx] = event;
+ drw_pmu->evtids[idx] = evtid;
+ }
+ hwc->idx = idx;
+
+ hwc->state = PERF_HES_STOPPED | PERF_HES_UPTODATE;
+
+ if (flags & PERF_EF_START)
+ ali_drw_pmu_start(event, PERF_EF_RELOAD);
+
+ /* Propagate our changes to the userspace mapping. */
+ perf_event_update_userpage(event);
+
+ return 0;
+}
+
+static void ali_drw_pmu_del(struct perf_event *event, int flags)
+{
+ struct ali_drw_pmu *drw_pmu = to_ali_drw_pmu(event->pmu);
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = hwc->idx;
+
+ ali_drw_pmu_stop(event, PERF_EF_UPDATE);
+
+ if (idx >= 0 && idx < ALI_DRW_PMU_COMMON_MAX_COUNTERS) {
+ drw_pmu->events[idx] = NULL;
+ drw_pmu->evtids[idx] = 0;
+ clear_bit(idx, drw_pmu->used_mask);
+ }
+
+ perf_event_update_userpage(event);
+}
+
+static void ali_drw_pmu_read(struct perf_event *event)
+{
+ ali_drw_pmu_event_update(event);
+}
+
+static int ali_drw_pmu_probe(struct platform_device *pdev)
+{
+ struct ali_drw_pmu *drw_pmu;
+ struct resource *res;
+ char *name;
+ int ret;
+
+ drw_pmu = devm_kzalloc(&pdev->dev, sizeof(*drw_pmu), GFP_KERNEL);
+ if (!drw_pmu)
+ return -ENOMEM;
+
+ drw_pmu->dev = &pdev->dev;
+ platform_set_drvdata(pdev, drw_pmu);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ drw_pmu->cfg_base = devm_ioremap_resource(&pdev->dev, res);
+ if (!drw_pmu->cfg_base)
+ return -ENOMEM;
+
+ name = devm_kasprintf(drw_pmu->dev, GFP_KERNEL, "ali_drw_%llx",
+ (u64) (res->start >> ALI_DRW_PMU_PA_SHIFT));
+ if (!name)
+ return -ENOMEM;
+
+ writel(ALI_DRW_PMU_CNT_RST, drw_pmu->cfg_base + ALI_DRW_PMU_CNT_CTRL);
+
+ /* enable the generation of interrupt by all common counters */
+ writel(ALI_DRW_PMCOM_CNT_OV_INTR_MASK,
+ drw_pmu->cfg_base + ALI_DRW_PMU_OV_INTR_ENABLE_CTL);
+
+ /* clearing interrupt status */
+ writel(0xffffff, drw_pmu->cfg_base + ALI_DRW_PMU_OV_INTR_CLR);
+
+ drw_pmu->cpu = smp_processor_id();
+
+ ret = ali_drw_pmu_init_irq(drw_pmu, pdev);
+ if (ret)
+ return ret;
+
+ drw_pmu->pmu = (struct pmu) {
+ .module = THIS_MODULE,
+ .task_ctx_nr = perf_invalid_context,
+ .event_init = ali_drw_pmu_event_init,
+ .add = ali_drw_pmu_add,
+ .del = ali_drw_pmu_del,
+ .start = ali_drw_pmu_start,
+ .stop = ali_drw_pmu_stop,
+ .read = ali_drw_pmu_read,
+ .attr_groups = ali_drw_pmu_attr_groups,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+ };
+
+ ret = perf_pmu_register(&drw_pmu->pmu, name, -1);
+ if (ret) {
+ dev_err(drw_pmu->dev, "DRW Driveway PMU PMU register failed!\n");
+ ali_drw_pmu_uninit_irq(drw_pmu);
+ }
+
+ return ret;
+}
+
+static int ali_drw_pmu_remove(struct platform_device *pdev)
+{
+ struct ali_drw_pmu *drw_pmu = platform_get_drvdata(pdev);
+
+ /* disable the generation of interrupt by all common counters */
+ writel(ALI_DRW_PMCOM_CNT_OV_INTR_MASK,
+ drw_pmu->cfg_base + ALI_DRW_PMU_OV_INTR_DISABLE_CTL);
+
+ ali_drw_pmu_uninit_irq(drw_pmu);
+ perf_pmu_unregister(&drw_pmu->pmu);
+
+ return 0;
+}
+
+static int ali_drw_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node)
+{
+ struct ali_drw_pmu_irq *irq;
+ struct ali_drw_pmu *drw_pmu;
+ unsigned int target;
+ int ret;
+ cpumask_t node_online_cpus;
+
+ irq = hlist_entry_safe(node, struct ali_drw_pmu_irq, node);
+ if (cpu != irq->cpu)
+ return 0;
+
+ ret = cpumask_and(&node_online_cpus,
+ cpumask_of_node(cpu_to_node(cpu)), cpu_online_mask);
+ if (ret)
+ target = cpumask_any_but(&node_online_cpus, cpu);
+ else
+ target = cpumask_any_but(cpu_online_mask, cpu);
+
+ if (target >= nr_cpu_ids)
+ return 0;
+
+ /* We're only reading, but this isn't the place to be involving RCU */
+ mutex_lock(&ali_drw_pmu_irqs_lock);
+ list_for_each_entry(drw_pmu, &irq->pmus_node, pmus_node)
+ perf_pmu_migrate_context(&drw_pmu->pmu, irq->cpu, target);
+ mutex_unlock(&ali_drw_pmu_irqs_lock);
+
+ WARN_ON(irq_set_affinity_hint(irq->irq_num, cpumask_of(target)));
+ irq->cpu = target;
+
+ return 0;
+}
+
+/*
+ * Due to historical reasons, the HID used in the production environment is
+ * ARMHD700, so we leave ARMHD700 as Compatible ID.
+ */
+static const struct acpi_device_id ali_drw_acpi_match[] = {
+ {"BABA5000", 0},
+ {"ARMHD700", 0},
+ {}
+};
+
+MODULE_DEVICE_TABLE(acpi, ali_drw_acpi_match);
+
+static struct platform_driver ali_drw_pmu_driver = {
+ .driver = {
+ .name = "ali_drw_pmu",
+ .acpi_match_table = ali_drw_acpi_match,
+ },
+ .probe = ali_drw_pmu_probe,
+ .remove = ali_drw_pmu_remove,
+};
+
+static int __init ali_drw_pmu_init(void)
+{
+ int ret;
+
+ ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
+ "ali_drw_pmu:online",
+ NULL, ali_drw_pmu_offline_cpu);
+
+ if (ret < 0) {
+ pr_err("DRW Driveway PMU: setup hotplug failed, ret = %d\n",
+ ret);
+ return ret;
+ }
+ ali_drw_cpuhp_state_num = ret;
+
+ ret = platform_driver_register(&ali_drw_pmu_driver);
+ if (ret)
+ cpuhp_remove_multi_state(ali_drw_cpuhp_state_num);
+
+ return ret;
+}
+
+static void __exit ali_drw_pmu_exit(void)
+{
+ platform_driver_unregister(&ali_drw_pmu_driver);
+ cpuhp_remove_multi_state(ali_drw_cpuhp_state_num);
+}
+
+module_init(ali_drw_pmu_init);
+module_exit(ali_drw_pmu_exit);
+
+MODULE_AUTHOR("Hongbo Yao <yaohongbo@linux.alibaba.com>");
+MODULE_AUTHOR("Neng Chen <nengchen@linux.alibaba.com>");
+MODULE_AUTHOR("Shuai Xue <xueshuai@linux.alibaba.com>");
+MODULE_DESCRIPTION("Alibaba DDR Sub-System Driveway PMU driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index 59d3980b8ca2..3f07df5a7e95 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -894,7 +894,7 @@ static struct arm_pmu *__armpmu_alloc(gfp_t flags)
* pmu::filter_match callback and pmu::event_init group
* validation).
*/
- .capabilities = PERF_PMU_CAP_HETEROGENEOUS_CPUS,
+ .capabilities = PERF_PMU_CAP_HETEROGENEOUS_CPUS | PERF_PMU_CAP_EXTENDED_REGS,
};
pmu->attr_groups[ARMPMU_ATTR_GROUP_COMMON] =
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index b65a7d9640e1..6ce05ef4844d 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -674,9 +674,9 @@ static irqreturn_t arm_spe_pmu_irq_handler(int irq, void *dev)
static u64 arm_spe_pmsevfr_res0(u16 pmsver)
{
switch (pmsver) {
- case ID_AA64DFR0_PMSVER_8_2:
+ case ID_AA64DFR0_EL1_PMSVer_IMP:
return SYS_PMSEVFR_EL1_RES0_8_2;
- case ID_AA64DFR0_PMSVER_8_3:
+ case ID_AA64DFR0_EL1_PMSVer_V1P1:
/* Return the highest version we support in default */
default:
return SYS_PMSEVFR_EL1_RES0_8_3;
@@ -958,7 +958,7 @@ static void __arm_spe_pmu_dev_probe(void *info)
struct device *dev = &spe_pmu->pdev->dev;
fld = cpuid_feature_extract_unsigned_field(read_cpuid(ID_AA64DFR0_EL1),
- ID_AA64DFR0_PMSVER_SHIFT);
+ ID_AA64DFR0_EL1_PMSVer_SHIFT);
if (!fld) {
dev_err(dev,
"unsupported ID_AA64DFR0_EL1.PMSVer [%d] on CPU %d\n",