mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-20 10:43:08 +00:00
b6d2cc127c
This is useful to re-sync AGX, since it shares the same timebase as the CPU. Signed-off-by: Asahi Lina <lina@asahilina.net>
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef HV_H
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#define HV_H
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#include "exception.h"
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#include "iodev.h"
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#include "types.h"
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#include "uartproxy.h"
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typedef bool(hv_hook_t)(struct exc_info *ctx, u64 addr, u64 *val, bool write, int width);
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#define MMIO_EVT_CPU GENMASK(23, 16)
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#define MMIO_EVT_MULTI BIT(6)
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#define MMIO_EVT_WRITE BIT(5)
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#define MMIO_EVT_WIDTH GENMASK(4, 0)
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struct hv_evt_mmiotrace {
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u32 flags;
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u32 reserved;
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u64 pc;
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u64 addr;
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u64 data;
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};
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struct hv_evt_irqtrace {
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u32 flags;
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u16 type;
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u16 num;
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};
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#define HV_MAX_RW_SIZE 64
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#define HV_MAX_RW_WORDS (HV_MAX_RW_SIZE >> 3)
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struct hv_vm_proxy_hook_data {
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u32 flags;
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u32 id;
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u64 addr;
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u64 data[HV_MAX_RW_WORDS];
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};
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typedef enum _hv_entry_type {
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HV_HOOK_VM = 1,
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HV_VTIMER,
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HV_USER_INTERRUPT,
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HV_WDT_BARK,
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HV_CPU_SWITCH,
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} hv_entry_type;
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/* VM */
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void hv_pt_init(void);
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int hv_map(u64 from, u64 to, u64 size, u64 incr);
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int hv_unmap(u64 from, u64 size);
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int hv_map_hw(u64 from, u64 to, u64 size);
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int hv_map_sw(u64 from, u64 to, u64 size);
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int hv_map_hook(u64 from, hv_hook_t *hook, u64 size);
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u64 hv_translate(u64 addr, bool s1only, bool w);
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u64 hv_pt_walk(u64 addr);
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bool hv_handle_dabort(struct exc_info *ctx);
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bool hv_pa_write(struct exc_info *ctx, u64 addr, u64 *val, int width);
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bool hv_pa_read(struct exc_info *ctx, u64 addr, u64 *val, int width);
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bool hv_pa_rw(struct exc_info *ctx, u64 addr, u64 *val, bool write, int width);
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/* AIC events through tracing the MMIO event address */
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bool hv_trace_irq(u32 type, u32 num, u32 count, u32 flags);
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/* Virtual peripherals */
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void hv_vuart_poll(void);
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void hv_map_vuart(u64 base, int irq, iodev_id_t iodev);
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/* Exceptions */
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void hv_exc_proxy(struct exc_info *ctx, uartproxy_boot_reason_t reason, u32 type, void *extra);
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void hv_set_time_stealing(bool enabled, bool reset);
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/* WDT */
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void hv_wdt_pet(void);
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void hv_wdt_suspend(void);
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void hv_wdt_resume(void);
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void hv_wdt_init(void);
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void hv_wdt_start(int cpu);
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void hv_wdt_stop(void);
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void hv_wdt_breadcrumb(char c);
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/* Utilities */
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void hv_write_hcr(u64 val);
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u64 hv_get_spsr(void);
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void hv_set_spsr(u64 val);
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u64 hv_get_esr(void);
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u64 hv_get_far(void);
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u64 hv_get_elr(void);
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u64 hv_get_afsr1(void);
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void hv_set_elr(u64 val);
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/* HV main */
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void hv_init(void);
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void hv_start(void *entry, u64 regs[4]);
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void hv_start_secondary(int cpu, void *entry, u64 regs[4]);
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void hv_rendezvous(void);
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bool hv_switch_cpu(int cpu);
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void hv_pin_cpu(int cpu);
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void hv_arm_tick(void);
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void hv_rearm(void);
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void hv_maybe_exit(void);
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void hv_tick(struct exc_info *ctx);
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#endif
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