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arm64 fixes:
- Fix oops when patching in alternative sequences on big-endian CPUs - Reconcile asm/perf_event.h after merge window fallout with KVM ARM - Defconfig updates -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABCgAGBQJW/jkCAAoJELescNyEwWM0xyAH+wdmjlc5WqtgjF68AYRgbWk/ 5GufYlxeMvST7eyT65dZKAyDpJpOBnTXMB7u8KkoGgSEmrdDV0bAjn5CJX41rfxf dlc9QDisuCAmxuIkQYGK2IJhnk69ehKhqw0w8dstVW2CSOBYtHnSSNtV8WyrKj+D QEM2Z86HCqM8BaSYhxv8Cte8W5fBegCqciJAVQoihAwioiuZ3cgsrLrT2QHaDhin gfCTNk/snHG3PAvuy+Kx1PICMH+ur4Enk8bft8xO6HzqSSDsWv/TD35VzcX5pY9V PRlC4D5TCEzwQQmFHpUj4PeQytIQge/Y3Ux/OUk1caq0Yei13RhOhR9q2+gTwKI= =gJNY -----END PGP SIGNATURE----- Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: - fix oops when patching in alternative sequences on big-endian CPUs - reconcile asm/perf_event.h after merge window fallout with KVM ARM - defconfig updates * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: defconfig: updates for 4.6 arm64: perf: Move PMU register related defines to asm/perf_event.h arm64: opcodes.h: Add arm big-endian config options before including arm header
This commit is contained in:
Linus Torvalds
commit
4fff505660
@ -68,11 +68,13 @@ CONFIG_KSM=y
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CONFIG_TRANSPARENT_HUGEPAGE=y
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CONFIG_CMA=y
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CONFIG_XEN=y
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CONFIG_CMDLINE="console=ttyAMA0"
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# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
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CONFIG_COMPAT=y
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CONFIG_CPU_IDLE=y
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CONFIG_ARM_CPUIDLE=y
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CONFIG_CPU_FREQ=y
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CONFIG_ARM_BIG_LITTLE_CPUFREQ=y
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CONFIG_ARM_SCPI_CPUFREQ=y
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CONFIG_NET=y
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CONFIG_PACKET=y
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CONFIG_UNIX=y
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@ -80,7 +82,6 @@ CONFIG_INET=y
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CONFIG_IP_PNP=y
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CONFIG_IP_PNP_DHCP=y
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CONFIG_IP_PNP_BOOTP=y
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# CONFIG_INET_LRO is not set
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# CONFIG_IPV6 is not set
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CONFIG_BPF_JIT=y
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# CONFIG_WIRELESS is not set
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@ -144,16 +145,18 @@ CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y
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CONFIG_SERIAL_MVEBU_UART=y
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CONFIG_VIRTIO_CONSOLE=y
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# CONFIG_HW_RANDOM is not set
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CONFIG_I2C=y
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CONFIG_I2C_CHARDEV=y
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CONFIG_I2C_DESIGNWARE_PLATFORM=y
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CONFIG_I2C_MV64XXX=y
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CONFIG_I2C_QUP=y
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CONFIG_I2C_TEGRA=y
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CONFIG_I2C_UNIPHIER_F=y
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CONFIG_I2C_RCAR=y
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CONFIG_SPI=y
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CONFIG_SPI_PL022=y
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CONFIG_SPI_QUP=y
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CONFIG_SPMI=y
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CONFIG_PINCTRL_SINGLE=y
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CONFIG_PINCTRL_MSM8916=y
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CONFIG_PINCTRL_QCOM_SPMI_PMIC=y
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CONFIG_GPIO_SYSFS=y
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@ -196,6 +199,7 @@ CONFIG_USB_EHCI_HCD_PLATFORM=y
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CONFIG_USB_OHCI_HCD=y
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CONFIG_USB_OHCI_HCD_PLATFORM=y
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CONFIG_USB_STORAGE=y
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CONFIG_USB_DWC2=y
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CONFIG_USB_CHIPIDEA=y
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CONFIG_USB_CHIPIDEA_UDC=y
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CONFIG_USB_CHIPIDEA_HOST=y
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@ -205,19 +209,20 @@ CONFIG_USB_MSM_OTG=y
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CONFIG_USB_ULPI=y
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CONFIG_USB_GADGET=y
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CONFIG_MMC=y
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CONFIG_MMC_BLOCK_MINORS=16
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CONFIG_MMC_BLOCK_MINORS=32
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CONFIG_MMC_ARMMMCI=y
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CONFIG_MMC_SDHCI=y
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CONFIG_MMC_SDHCI_PLTFM=y
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CONFIG_MMC_SDHCI_TEGRA=y
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CONFIG_MMC_SDHCI_MSM=y
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CONFIG_MMC_SPI=y
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CONFIG_MMC_SUNXI=y
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CONFIG_MMC_DW=y
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CONFIG_MMC_DW_EXYNOS=y
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CONFIG_MMC_BLOCK_MINORS=16
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CONFIG_MMC_DW_K3=y
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CONFIG_MMC_SUNXI=y
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CONFIG_NEW_LEDS=y
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CONFIG_LEDS_CLASS=y
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CONFIG_LEDS_GPIO=y
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CONFIG_LEDS_SYSCON=y
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CONFIG_LEDS_TRIGGERS=y
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CONFIG_LEDS_TRIGGER_HEARTBEAT=y
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@ -229,8 +234,8 @@ CONFIG_RTC_DRV_PL031=y
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CONFIG_RTC_DRV_SUN6I=y
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CONFIG_RTC_DRV_XGENE=y
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CONFIG_DMADEVICES=y
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CONFIG_QCOM_BAM_DMA=y
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CONFIG_TEGRA20_APB_DMA=y
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CONFIG_QCOM_BAM_DMA=y
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CONFIG_RCAR_DMAC=y
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CONFIG_VFIO=y
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CONFIG_VFIO_PCI=y
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@ -239,20 +244,26 @@ CONFIG_VIRTIO_BALLOON=y
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CONFIG_VIRTIO_MMIO=y
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CONFIG_XEN_GNTDEV=y
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CONFIG_XEN_GRANT_DEV_ALLOC=y
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CONFIG_COMMON_CLK_SCPI=y
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CONFIG_COMMON_CLK_CS2000_CP=y
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CONFIG_COMMON_CLK_QCOM=y
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CONFIG_MSM_GCC_8916=y
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CONFIG_HWSPINLOCK_QCOM=y
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CONFIG_MAILBOX=y
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CONFIG_ARM_MHU=y
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CONFIG_HI6220_MBOX=y
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CONFIG_ARM_SMMU=y
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CONFIG_QCOM_SMEM=y
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CONFIG_QCOM_SMD=y
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CONFIG_QCOM_SMD_RPM=y
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CONFIG_ARCH_TEGRA_132_SOC=y
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CONFIG_ARCH_TEGRA_210_SOC=y
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CONFIG_HISILICON_IRQ_MBIGEN=y
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CONFIG_EXTCON_USB_GPIO=y
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CONFIG_COMMON_RESET_HI6220=y
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CONFIG_PHY_RCAR_GEN3_USB2=y
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CONFIG_PHY_HI6220_USB=y
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CONFIG_PHY_XGENE=y
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CONFIG_ARM_SCPI_PROTOCOL=y
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CONFIG_EXT2_FS=y
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CONFIG_EXT3_FS=y
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CONFIG_FANOTIFY=y
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@ -264,6 +275,7 @@ CONFIG_CUSE=y
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CONFIG_VFAT_FS=y
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CONFIG_TMPFS=y
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CONFIG_HUGETLBFS=y
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CONFIG_CONFIGFS_FS=y
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CONFIG_EFIVAR_FS=y
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CONFIG_SQUASHFS=y
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CONFIG_NFS_FS=y
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@ -27,7 +27,6 @@
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#include <asm/kvm.h>
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#include <asm/kvm_asm.h>
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#include <asm/kvm_mmio.h>
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#include <asm/kvm_perf_event.h>
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#define __KVM_HAVE_ARCH_INTC_INITIALIZED
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@ -21,7 +21,6 @@
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#include <linux/compiler.h>
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#include <linux/kvm_host.h>
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#include <asm/kvm_mmu.h>
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#include <asm/kvm_perf_event.h>
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#include <asm/sysreg.h>
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#define __hyp_text __section(.hyp.text) notrace
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@ -1,68 +0,0 @@
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/*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_KVM_PERF_EVENT_H
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#define __ASM_KVM_PERF_EVENT_H
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#define ARMV8_PMU_MAX_COUNTERS 32
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#define ARMV8_PMU_COUNTER_MASK (ARMV8_PMU_MAX_COUNTERS - 1)
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/*
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* Per-CPU PMCR: config reg
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*/
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#define ARMV8_PMU_PMCR_E (1 << 0) /* Enable all counters */
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#define ARMV8_PMU_PMCR_P (1 << 1) /* Reset all counters */
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#define ARMV8_PMU_PMCR_C (1 << 2) /* Cycle counter reset */
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#define ARMV8_PMU_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */
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#define ARMV8_PMU_PMCR_X (1 << 4) /* Export to ETM */
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#define ARMV8_PMU_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
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/* Determines which bit of PMCCNTR_EL0 generates an overflow */
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#define ARMV8_PMU_PMCR_LC (1 << 6)
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#define ARMV8_PMU_PMCR_N_SHIFT 11 /* Number of counters supported */
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#define ARMV8_PMU_PMCR_N_MASK 0x1f
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#define ARMV8_PMU_PMCR_MASK 0x7f /* Mask for writable bits */
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/*
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* PMOVSR: counters overflow flag status reg
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*/
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#define ARMV8_PMU_OVSR_MASK 0xffffffff /* Mask for writable bits */
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#define ARMV8_PMU_OVERFLOWED_MASK ARMV8_PMU_OVSR_MASK
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/*
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* PMXEVTYPER: Event selection reg
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*/
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#define ARMV8_PMU_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */
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#define ARMV8_PMU_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */
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#define ARMV8_PMU_EVTYPE_EVENT_SW_INCR 0 /* Software increment event */
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/*
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* Event filters for PMUv3
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*/
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#define ARMV8_PMU_EXCLUDE_EL1 (1 << 31)
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#define ARMV8_PMU_EXCLUDE_EL0 (1 << 30)
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#define ARMV8_PMU_INCLUDE_EL2 (1 << 27)
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/*
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* PMUSERENR: user enable reg
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*/
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#define ARMV8_PMU_USERENR_MASK 0xf /* Mask for writable bits */
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#define ARMV8_PMU_USERENR_EN (1 << 0) /* PMU regs can be accessed at EL0 */
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#define ARMV8_PMU_USERENR_SW (1 << 1) /* PMSWINC can be written at EL0 */
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#define ARMV8_PMU_USERENR_CR (1 << 2) /* Cycle counter can be read at EL0 */
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#define ARMV8_PMU_USERENR_ER (1 << 3) /* Event counter can be read at EL0 */
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#endif
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@ -1 +1,5 @@
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#ifdef CONFIG_CPU_BIG_ENDIAN
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#define CONFIG_CPU_ENDIAN_BE8 CONFIG_CPU_BIG_ENDIAN
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#endif
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#include <../../arm/include/asm/opcodes.h>
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@ -17,6 +17,53 @@
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#ifndef __ASM_PERF_EVENT_H
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#define __ASM_PERF_EVENT_H
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#define ARMV8_PMU_MAX_COUNTERS 32
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#define ARMV8_PMU_COUNTER_MASK (ARMV8_PMU_MAX_COUNTERS - 1)
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/*
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* Per-CPU PMCR: config reg
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*/
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#define ARMV8_PMU_PMCR_E (1 << 0) /* Enable all counters */
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#define ARMV8_PMU_PMCR_P (1 << 1) /* Reset all counters */
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#define ARMV8_PMU_PMCR_C (1 << 2) /* Cycle counter reset */
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#define ARMV8_PMU_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */
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#define ARMV8_PMU_PMCR_X (1 << 4) /* Export to ETM */
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#define ARMV8_PMU_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
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#define ARMV8_PMU_PMCR_LC (1 << 6) /* Overflow on 64 bit cycle counter */
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#define ARMV8_PMU_PMCR_N_SHIFT 11 /* Number of counters supported */
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#define ARMV8_PMU_PMCR_N_MASK 0x1f
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#define ARMV8_PMU_PMCR_MASK 0x7f /* Mask for writable bits */
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/*
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* PMOVSR: counters overflow flag status reg
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*/
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#define ARMV8_PMU_OVSR_MASK 0xffffffff /* Mask for writable bits */
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#define ARMV8_PMU_OVERFLOWED_MASK ARMV8_PMU_OVSR_MASK
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/*
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* PMXEVTYPER: Event selection reg
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*/
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#define ARMV8_PMU_EVTYPE_MASK 0xc800ffff /* Mask for writable bits */
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#define ARMV8_PMU_EVTYPE_EVENT 0xffff /* Mask for EVENT bits */
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#define ARMV8_PMU_EVTYPE_EVENT_SW_INCR 0 /* Software increment event */
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/*
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* Event filters for PMUv3
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*/
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#define ARMV8_PMU_EXCLUDE_EL1 (1 << 31)
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#define ARMV8_PMU_EXCLUDE_EL0 (1 << 30)
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#define ARMV8_PMU_INCLUDE_EL2 (1 << 27)
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/*
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* PMUSERENR: user enable reg
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*/
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#define ARMV8_PMU_USERENR_MASK 0xf /* Mask for writable bits */
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#define ARMV8_PMU_USERENR_EN (1 << 0) /* PMU regs can be accessed at EL0 */
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#define ARMV8_PMU_USERENR_SW (1 << 1) /* PMSWINC can be written at EL0 */
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#define ARMV8_PMU_USERENR_CR (1 << 2) /* Cycle counter can be read at EL0 */
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#define ARMV8_PMU_USERENR_ER (1 << 3) /* Event counter can be read at EL0 */
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#ifdef CONFIG_PERF_EVENTS
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struct pt_regs;
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extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
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@ -20,6 +20,7 @@
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*/
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#include <asm/irq_regs.h>
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#include <asm/perf_event.h>
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#include <asm/virt.h>
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#include <linux/of.h>
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@ -384,9 +385,6 @@ static const struct attribute_group *armv8_pmuv3_attr_groups[] = {
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#define ARMV8_IDX_COUNTER_LAST(cpu_pmu) \
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(ARMV8_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1)
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#define ARMV8_MAX_COUNTERS 32
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#define ARMV8_COUNTER_MASK (ARMV8_MAX_COUNTERS - 1)
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/*
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* ARMv8 low level PMU access
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*/
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@ -395,40 +393,7 @@ static const struct attribute_group *armv8_pmuv3_attr_groups[] = {
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* Perf Event to low level counters mapping
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*/
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#define ARMV8_IDX_TO_COUNTER(x) \
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(((x) - ARMV8_IDX_COUNTER0) & ARMV8_COUNTER_MASK)
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|
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/*
|
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* Per-CPU PMCR: config reg
|
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*/
|
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#define ARMV8_PMCR_E (1 << 0) /* Enable all counters */
|
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#define ARMV8_PMCR_P (1 << 1) /* Reset all counters */
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#define ARMV8_PMCR_C (1 << 2) /* Cycle counter reset */
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#define ARMV8_PMCR_D (1 << 3) /* CCNT counts every 64th cpu cycle */
|
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#define ARMV8_PMCR_X (1 << 4) /* Export to ETM */
|
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#define ARMV8_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
|
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#define ARMV8_PMCR_LC (1 << 6) /* Overflow on 64 bit cycle counter */
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#define ARMV8_PMCR_N_SHIFT 11 /* Number of counters supported */
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#define ARMV8_PMCR_N_MASK 0x1f
|
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#define ARMV8_PMCR_MASK 0x7f /* Mask for writable bits */
|
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|
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/*
|
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* PMOVSR: counters overflow flag status reg
|
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*/
|
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#define ARMV8_OVSR_MASK 0xffffffff /* Mask for writable bits */
|
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#define ARMV8_OVERFLOWED_MASK ARMV8_OVSR_MASK
|
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|
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/*
|
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* PMXEVTYPER: Event selection reg
|
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*/
|
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#define ARMV8_EVTYPE_MASK 0xc800ffff /* Mask for writable bits */
|
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#define ARMV8_EVTYPE_EVENT 0xffff /* Mask for EVENT bits */
|
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|
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/*
|
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* Event filters for PMUv3
|
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*/
|
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#define ARMV8_EXCLUDE_EL1 (1 << 31)
|
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#define ARMV8_EXCLUDE_EL0 (1 << 30)
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#define ARMV8_INCLUDE_EL2 (1 << 27)
|
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(((x) - ARMV8_IDX_COUNTER0) & ARMV8_PMU_COUNTER_MASK)
|
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|
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static inline u32 armv8pmu_pmcr_read(void)
|
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{
|
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@ -439,14 +404,14 @@ static inline u32 armv8pmu_pmcr_read(void)
|
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|
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static inline void armv8pmu_pmcr_write(u32 val)
|
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{
|
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val &= ARMV8_PMCR_MASK;
|
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val &= ARMV8_PMU_PMCR_MASK;
|
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isb();
|
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asm volatile("msr pmcr_el0, %0" :: "r" (val));
|
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}
|
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|
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static inline int armv8pmu_has_overflowed(u32 pmovsr)
|
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{
|
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return pmovsr & ARMV8_OVERFLOWED_MASK;
|
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return pmovsr & ARMV8_PMU_OVERFLOWED_MASK;
|
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}
|
||||
|
||||
static inline int armv8pmu_counter_valid(struct arm_pmu *cpu_pmu, int idx)
|
||||
@ -512,7 +477,7 @@ static inline void armv8pmu_write_counter(struct perf_event *event, u32 value)
|
||||
static inline void armv8pmu_write_evtype(int idx, u32 val)
|
||||
{
|
||||
if (armv8pmu_select_counter(idx) == idx) {
|
||||
val &= ARMV8_EVTYPE_MASK;
|
||||
val &= ARMV8_PMU_EVTYPE_MASK;
|
||||
asm volatile("msr pmxevtyper_el0, %0" :: "r" (val));
|
||||
}
|
||||
}
|
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@ -558,7 +523,7 @@ static inline u32 armv8pmu_getreset_flags(void)
|
||||
asm volatile("mrs %0, pmovsclr_el0" : "=r" (value));
|
||||
|
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/* Write to clear flags */
|
||||
value &= ARMV8_OVSR_MASK;
|
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value &= ARMV8_PMU_OVSR_MASK;
|
||||
asm volatile("msr pmovsclr_el0, %0" :: "r" (value));
|
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|
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return value;
|
||||
@ -696,7 +661,7 @@ static void armv8pmu_start(struct arm_pmu *cpu_pmu)
|
||||
|
||||
raw_spin_lock_irqsave(&events->pmu_lock, flags);
|
||||
/* Enable all counters */
|
||||
armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMCR_E);
|
||||
armv8pmu_pmcr_write(armv8pmu_pmcr_read() | ARMV8_PMU_PMCR_E);
|
||||
raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
|
||||
}
|
||||
|
||||
@ -707,7 +672,7 @@ static void armv8pmu_stop(struct arm_pmu *cpu_pmu)
|
||||
|
||||
raw_spin_lock_irqsave(&events->pmu_lock, flags);
|
||||
/* Disable all counters */
|
||||
armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMCR_E);
|
||||
armv8pmu_pmcr_write(armv8pmu_pmcr_read() & ~ARMV8_PMU_PMCR_E);
|
||||
raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
|
||||
}
|
||||
|
||||
@ -717,7 +682,7 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc,
|
||||
int idx;
|
||||
struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu);
|
||||
struct hw_perf_event *hwc = &event->hw;
|
||||
unsigned long evtype = hwc->config_base & ARMV8_EVTYPE_EVENT;
|
||||
unsigned long evtype = hwc->config_base & ARMV8_PMU_EVTYPE_EVENT;
|
||||
|
||||
/* Always place a cycle counter into the cycle counter. */
|
||||
if (evtype == ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES) {
|
||||
@ -754,11 +719,11 @@ static int armv8pmu_set_event_filter(struct hw_perf_event *event,
|
||||
attr->exclude_kernel != attr->exclude_hv)
|
||||
return -EINVAL;
|
||||
if (attr->exclude_user)
|
||||
config_base |= ARMV8_EXCLUDE_EL0;
|
||||
config_base |= ARMV8_PMU_EXCLUDE_EL0;
|
||||
if (!is_kernel_in_hyp_mode() && attr->exclude_kernel)
|
||||
config_base |= ARMV8_EXCLUDE_EL1;
|
||||
config_base |= ARMV8_PMU_EXCLUDE_EL1;
|
||||
if (!attr->exclude_hv)
|
||||
config_base |= ARMV8_INCLUDE_EL2;
|
||||
config_base |= ARMV8_PMU_INCLUDE_EL2;
|
||||
|
||||
/*
|
||||
* Install the filter into config_base as this is used to
|
||||
@ -784,35 +749,36 @@ static void armv8pmu_reset(void *info)
|
||||
* Initialize & Reset PMNC. Request overflow interrupt for
|
||||
* 64 bit cycle counter but cheat in armv8pmu_write_counter().
|
||||
*/
|
||||
armv8pmu_pmcr_write(ARMV8_PMCR_P | ARMV8_PMCR_C | ARMV8_PMCR_LC);
|
||||
armv8pmu_pmcr_write(ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C |
|
||||
ARMV8_PMU_PMCR_LC);
|
||||
}
|
||||
|
||||
static int armv8_pmuv3_map_event(struct perf_event *event)
|
||||
{
|
||||
return armpmu_map_event(event, &armv8_pmuv3_perf_map,
|
||||
&armv8_pmuv3_perf_cache_map,
|
||||
ARMV8_EVTYPE_EVENT);
|
||||
ARMV8_PMU_EVTYPE_EVENT);
|
||||
}
|
||||
|
||||
static int armv8_a53_map_event(struct perf_event *event)
|
||||
{
|
||||
return armpmu_map_event(event, &armv8_a53_perf_map,
|
||||
&armv8_a53_perf_cache_map,
|
||||
ARMV8_EVTYPE_EVENT);
|
||||
ARMV8_PMU_EVTYPE_EVENT);
|
||||
}
|
||||
|
||||
static int armv8_a57_map_event(struct perf_event *event)
|
||||
{
|
||||
return armpmu_map_event(event, &armv8_a57_perf_map,
|
||||
&armv8_a57_perf_cache_map,
|
||||
ARMV8_EVTYPE_EVENT);
|
||||
ARMV8_PMU_EVTYPE_EVENT);
|
||||
}
|
||||
|
||||
static int armv8_thunder_map_event(struct perf_event *event)
|
||||
{
|
||||
return armpmu_map_event(event, &armv8_thunder_perf_map,
|
||||
&armv8_thunder_perf_cache_map,
|
||||
ARMV8_EVTYPE_EVENT);
|
||||
ARMV8_PMU_EVTYPE_EVENT);
|
||||
}
|
||||
|
||||
static void armv8pmu_read_num_pmnc_events(void *info)
|
||||
@ -820,7 +786,7 @@ static void armv8pmu_read_num_pmnc_events(void *info)
|
||||
int *nb_cnt = info;
|
||||
|
||||
/* Read the nb of CNTx counters supported from PMNC */
|
||||
*nb_cnt = (armv8pmu_pmcr_read() >> ARMV8_PMCR_N_SHIFT) & ARMV8_PMCR_N_MASK;
|
||||
*nb_cnt = (armv8pmu_pmcr_read() >> ARMV8_PMU_PMCR_N_SHIFT) & ARMV8_PMU_PMCR_N_MASK;
|
||||
|
||||
/* Add the CPU cycles counter */
|
||||
*nb_cnt += 1;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user