1deede7388
Change-Id: Ifab2a65fdad1de807e2334ec94137b992d6fe19d Reviewed-on: https://review.haiku-os.org/c/haiku/+/4300 Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
144 lines
4.2 KiB
C
144 lines
4.2 KiB
C
/*
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* Copyright 2021, Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _SBI_SYSCALLS_H_
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#define _SBI_SYSCALLS_H_
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#include <stdint.h>
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enum {
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SBI_SUCCESS = 0,
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SBI_ERR_FAILED = -1,
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SBI_ERR_NOT_SUPPORTED = -2,
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SBI_ERR_INVALID_PARAM = -3,
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SBI_ERR_DENIED = -4,
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SBI_ERR_INVALID_ADDRESS = -5,
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SBI_ERR_ALREADY_AVAILABLE = -6,
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};
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struct sbiret {
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long error; // a0
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long value; // a1
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};
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enum {
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SBI_HART_STATE_STARTED = 0,
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SBI_HART_STATE_STOPPED = 1,
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SBI_HART_STATE_START_PENDING = 2,
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SBI_HART_STATE_STOP_PENDING = 3,
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SBI_HART_STATE_SUSPENDED = 4,
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SBI_HART_STATE_SUSPEND_PENDING = 5,
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SBI_HART_STATE_RESUME_PENDING = 6,
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};
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enum {
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SBI_RESET_TYPE_SHUTDOWN = 0,
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SBI_RESET_TYPE_COLD_REBOOT = 1,
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SBI_RESET_TYPE_WARM_REBOOT = 2,
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};
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enum {
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SBI_RESET_REASON_NONE = 0,
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SBI_RESET_REASON_SYSTEM_FAILURE = 1,
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};
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// a7: EID, a6: FID
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extern "C" {
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// Base Extension (EID #0x10)
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struct sbiret sbi_get_spec_version(void); // FID #0
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struct sbiret sbi_get_impl_id(void); // FID #1
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struct sbiret sbi_get_impl_version(void); // FID #2
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struct sbiret sbi_probe_extension(long extension_id); // FID #3
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struct sbiret sbi_get_mvendorid(void); // FID #4
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struct sbiret sbi_get_marchid(void); // FID #5
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struct sbiret sbi_get_mimpid(void); // FID #6
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// Legacy Extensions (EIDs #0x00 - #0x0F)
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void sbi_set_timer_legacy(uint64_t stime_value); // EID #0x00
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void sbi_console_putchar_legacy(int ch); // EID #0x01
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int sbi_console_getchar_legacy(void); // EID #0x02
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void sbi_clear_ipi_legacy(void); // EID #0x03
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void sbi_send_ipi_legacy(const unsigned long *hart_mask); // EID #0x04
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void sbi_remote_fence_i_legacy(const unsigned long *hart_mask); // EID #0x05
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void sbi_remote_sfence_vma_legacy( // EID #0x06
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const unsigned long *hart_mask,
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unsigned long start,
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unsigned long size);
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void sbi_remote_sfence_vma_asid_legacy( // EID #0x07
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const unsigned long *hart_mask,
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unsigned long start,
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unsigned long size,
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unsigned long asid);
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void sbi_shutdown_legacy(void); // EID #0x08
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// Timer Extension (EID #0x54494D45 "TIME")
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struct sbiret sbi_set_timer(uint64_t stime_value); // FID #0
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// IPI Extension (EID #0x735049 "sPI: s-mode IPI")
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struct sbiret sbi_send_ipi( // FID #0
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unsigned long hart_mask,
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unsigned long hart_mask_base);
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// RFENCE Extension (EID #0x52464E43 "RFNC")
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struct sbiret sbi_remote_fence_i( // FID #0
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unsigned long hart_mask,
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unsigned long hart_mask_base);
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struct sbiret sbi_remote_sfence_vma( // FID #1
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size);
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struct sbiret sbi_remote_sfence_vma_asid( // FID #2
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size,
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unsigned long asid);
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struct sbiret sbi_remote_hfence_gvma_vmid( // FID #3
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size,
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unsigned long vmid);
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struct sbiret sbi_remote_hfence_gvma( // FID #4
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size);
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struct sbiret sbi_remote_hfence_vvma_asid( // FID #5
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size,
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unsigned long asid);
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struct sbiret sbi_remote_hfence_vvma( // FID #6
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unsigned long hart_mask,
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unsigned long hart_mask_base,
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unsigned long start_addr,
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unsigned long size);
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// Hart State Management Extension (EID #0x48534D "HSM")
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struct sbiret sbi_hart_start( // FID #0
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unsigned long hartid,
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unsigned long start_addr,
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unsigned long opaque);
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struct sbiret sbi_hart_stop(void); // FID #1
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struct sbiret sbi_hart_get_status(unsigned long hartid); // FID #2
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struct sbiret sbi_hart_suspend( // FID #3
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uint32_t suspend_type,
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unsigned long resume_addr,
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unsigned long opaque);
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// System Reset Extension (EID #0x53525354 "SRST")
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struct sbiret sbi_system_reset(uint32_t reset_type, uint32_t reset_reason); // FID #0
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}
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#endif // _SBI_SYSCALLS_H_
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