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usr/src/linux-headers-5.15.0-133/include/kvm/arm_arch_timer.h��0000644��00000005664�15030521270�0017317 0��ustar�00��/* SPDX-License-Identifier: GPL-2.0-only / / * Copyright (C) 2012 ARM Ltd. * Author: Marc Zyngier <marc.zyngier@arm.com> / #ifndef __ASM_ARM_KVM_ARCH_TIMER_H #define __ASM_ARM_KVM_ARCH_TIMER_H #include <linux/clocksource.h> #include <linux/hrtimer.h> enum kvm_arch_timers { TIMER_PTIMER, TIMER_VTIMER, NR_KVM_TIMERS }; enum kvm_arch_timer_regs { TIMER_REG_CNT, TIMER_REG_CVAL, TIMER_REG_TVAL, TIMER_REG_CTL, }; struct arch_timer_context { struct kvm_vcpu vcpu; /* Timer IRQ / struct kvm_irq_level irq; / Emulated Timer (may be unused) / struct hrtimer hrtimer; / * We have multiple paths which can save/restore the timer state onto * the hardware, so we need some way of keeping track of where the * latest state is. / bool loaded; / Duplicated state from arch_timer.c for convenience / u32 host_timer_irq; u32 host_timer_irq_flags; }; struct timer_map { struct arch_timer_context direct_vtimer; struct arch_timer_context direct_ptimer; struct arch_timer_context emul_ptimer; }; struct arch_timer_cpu { struct arch_timer_context timers[NR_KVM_TIMERS]; /* Background timer used when the guest is not running / struct hrtimer bg_timer; / Is the timer enabled / bool enabled; }; int kvm_timer_hyp_init(bool); int kvm_timer_enable(struct kvm_vcpu vcpu); int kvm_timer_vcpu_reset(struct kvm_vcpu vcpu); void kvm_timer_vcpu_init(struct kvm_vcpu vcpu); void kvm_timer_sync_user(struct kvm_vcpu vcpu); bool kvm_timer_should_notify_user(struct kvm_vcpu vcpu); void kvm_timer_update_run(struct kvm_vcpu vcpu); void kvm_timer_vcpu_terminate(struct kvm_vcpu vcpu); u64 kvm_arm_timer_get_reg(struct kvm_vcpu , u64 regid); int kvm_arm_timer_set_reg(struct kvm_vcpu , u64 regid, u64 value); int kvm_arm_timer_set_attr(struct kvm_vcpu vcpu, struct kvm_device_attr attr); int kvm_arm_timer_get_attr(struct kvm_vcpu vcpu, struct kvm_device_attr attr); int kvm_arm_timer_has_attr(struct kvm_vcpu vcpu, struct kvm_device_attr attr); bool kvm_timer_is_pending(struct kvm_vcpu vcpu); u64 kvm_phys_timer_read(void); void kvm_timer_vcpu_load(struct kvm_vcpu vcpu); void kvm_timer_vcpu_put(struct kvm_vcpu vcpu); void kvm_timer_init_vhe(void); bool kvm_arch_timer_get_input_level(int vintid); #define vcpu_timer(v) (&(v)->arch.timer_cpu) #define vcpu_get_timer(v,t) (&vcpu_timer(v)->timers[(t)]) #define vcpu_vtimer(v) (&(v)->arch.timer_cpu.timers[TIMER_VTIMER]) #define vcpu_ptimer(v) (&(v)->arch.timer_cpu.timers[TIMER_PTIMER]) #define arch_timer_ctx_index(ctx) ((ctx) - vcpu_timer((ctx)->vcpu)->timers) u64 kvm_arm_timer_read_sysreg(struct kvm_vcpu vcpu, enum kvm_arch_timers tmr, enum kvm_arch_timer_regs treg); void kvm_arm_timer_write_sysreg(struct kvm_vcpu vcpu, enum kvm_arch_timers tmr, enum kvm_arch_timer_regs treg, u64 val); / Needed for tracing / u32 timer_get_ctl(struct arch_timer_context ctxt); u64 timer_get_cval(struct arch_timer_context ctxt); #endif ��usr/src/linux-headers-5.15.0-141/include/clocksource/arm_arch_timer.h��0000644��00000004733�15030536172�0021040 0��ustar�00��/ SPDX-License-Identifier: GPL-2.0-only / / * Copyright (C) 2012 ARM Ltd. / #ifndef __CLKSOURCE_ARM_ARCH_TIMER_H #define __CLKSOURCE_ARM_ARCH_TIMER_H #include <linux/bitops.h> #include <linux/timecounter.h> #include <linux/types.h> #define ARCH_TIMER_TYPE_CP15 BIT(0) #define ARCH_TIMER_TYPE_MEM BIT(1) #define ARCH_TIMER_CTRL_ENABLE (1 << 0) #define ARCH_TIMER_CTRL_IT_MASK (1 << 1) #define ARCH_TIMER_CTRL_IT_STAT (1 << 2) #define CNTHCTL_EL1PCTEN (1 << 0) #define CNTHCTL_EL1PCEN (1 << 1) #define CNTHCTL_EVNTEN (1 << 2) #define CNTHCTL_EVNTDIR (1 << 3) #define CNTHCTL_EVNTI (0xF << 4) enum arch_timer_reg { ARCH_TIMER_REG_CTRL, ARCH_TIMER_REG_CVAL, }; enum arch_timer_ppi_nr { ARCH_TIMER_PHYS_SECURE_PPI, ARCH_TIMER_PHYS_NONSECURE_PPI, ARCH_TIMER_VIRT_PPI, ARCH_TIMER_HYP_PPI, ARCH_TIMER_HYP_VIRT_PPI, ARCH_TIMER_MAX_TIMER_PPI }; enum arch_timer_spi_nr { ARCH_TIMER_PHYS_SPI, ARCH_TIMER_VIRT_SPI, ARCH_TIMER_MAX_TIMER_SPI }; #define ARCH_TIMER_PHYS_ACCESS 0 #define ARCH_TIMER_VIRT_ACCESS 1 #define ARCH_TIMER_MEM_PHYS_ACCESS 2 #define ARCH_TIMER_MEM_VIRT_ACCESS 3 #define ARCH_TIMER_MEM_MAX_FRAMES 8 #define ARCH_TIMER_USR_PCT_ACCESS_EN (1 << 0) / physical counter / #define ARCH_TIMER_USR_VCT_ACCESS_EN (1 << 1) / virtual counter / #define ARCH_TIMER_VIRT_EVT_EN (1 << 2) #define ARCH_TIMER_EVT_TRIGGER_SHIFT (4) #define ARCH_TIMER_EVT_TRIGGER_MASK (0xF << ARCH_TIMER_EVT_TRIGGER_SHIFT) #define ARCH_TIMER_USR_VT_ACCESS_EN (1 << 8) / virtual timer registers / #define ARCH_TIMER_USR_PT_ACCESS_EN (1 << 9) / physical timer registers / #define ARCH_TIMER_EVT_STREAM_PERIOD_US 100 #define ARCH_TIMER_EVT_STREAM_FREQ \ (USEC_PER_SEC / ARCH_TIMER_EVT_STREAM_PERIOD_US) struct arch_timer_kvm_info { struct timecounter timecounter; int virtual_irq; int physical_irq; }; struct arch_timer_mem_frame { bool valid; phys_addr_t cntbase; size_t size; int phys_irq; int virt_irq; }; struct arch_timer_mem { phys_addr_t cntctlbase; size_t size; struct arch_timer_mem_frame frame[ARCH_TIMER_MEM_MAX_FRAMES]; }; #ifdef CONFIG_ARM_ARCH_TIMER extern u32 arch_timer_get_rate(void); extern u64 (arch_timer_read_counter)(void); extern struct arch_timer_kvm_info *arch_timer_get_kvm_info(void); extern bool arch_timer_evtstrm_available(void); #else static inline u32 arch_timer_get_rate(void) { return 0; } static inline u64 arch_timer_read_counter(void) { return 0; } static inline bool arch_timer_evtstrm_available(void) { return false; } #endif #endif ��

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