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https://github.com/AsahiLinux/m1n1
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bce239b36f
This is step 1 of the rework to make reentrant exceptions work Signed-off-by: Hector Martin <marcan@marcan.st>
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef __EXCEPTION_H__
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#define __EXCEPTION_H__
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#define SIZEOF_EXC_INFO (64 * 8)
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#ifndef __ASSEMBLER__
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#include <assert.h>
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#include <stdint.h>
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#include "types.h"
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enum exc_guard_t {
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GUARD_OFF = 0,
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GUARD_SKIP,
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GUARD_MARK,
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GUARD_RETURN,
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GUARD_TYPE_MASK = 0xff,
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GUARD_SILENT = 0x100,
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};
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struct exc_info {
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u64 regs[32];
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u64 spsr;
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u64 elr;
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u64 esr;
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u64 far;
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u64 afsr1;
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u64 sp[3];
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u64 cpu_id;
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u64 mpidr;
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u64 elr_phys;
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u64 far_phys;
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u64 sp_phys;
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void *extra;
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};
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static_assert(sizeof(struct exc_info) <= SIZEOF_EXC_INFO, "Please increase SIZEOF_EXC_INFO");
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static_assert((sizeof(struct exc_info) & 15) == 0, "SIZEOF_EXC_INFO must be a multiple of 16");
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extern volatile enum exc_guard_t exc_guard;
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extern volatile int exc_count;
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void exception_initialize(void);
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void exception_shutdown(void);
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void print_regs(u64 *regs, int el12);
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uint64_t el0_call(void *func, uint64_t a, uint64_t b, uint64_t c, uint64_t d);
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uint64_t el1_call(void *func, uint64_t a, uint64_t b, uint64_t c, uint64_t d);
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#endif
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#endif
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