79 lines
No EOL
2.3 KiB
C
79 lines
No EOL
2.3 KiB
C
#ifndef PANIC_H
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#define PANIC_H
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#define MSTATUS 0x300
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#define MIE 0x304
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#define MSTATUS_BIT_MIE 3
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#define MIE_BIT_MTIE 7
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#define MIE_BIT_MEIE 11
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#define CLINT_BASE 0x02000000UL
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#define CLINT_MTIME (CLINT_BASE + 0xBFF8UL)
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#define CLINT_MTIMECMP(h) (CLINT_BASE + 0x4000UL + (8UL * (h)))
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// This should match the order of registers in traps.S
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typedef struct {
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// Return address and pointers
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uint64_t ra; // x1
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uint64_t gp; // x3
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uint64_t tp; // x4
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// Temporary registers
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uint64_t t0; // x5
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uint64_t t1; // x6
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uint64_t t2; // x7
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// Saved registers
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uint64_t s0; // x8 (fp)
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uint64_t s1; // x9
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// Function arguments / Return values
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uint64_t a0; // x10
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uint64_t a1; // x11
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uint64_t a2; // x12
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uint64_t a3; // x13
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uint64_t a4; // x14
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uint64_t a5; // x15
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uint64_t a6; // x16
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uint64_t a7; // x17
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// More saved registers
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uint64_t s2; // x18
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uint64_t s3; // x19
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uint64_t s4; // x20
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uint64_t s5; // x21
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uint64_t s6; // x22
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uint64_t s7; // x23
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uint64_t s8; // x24
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uint64_t s9; // x25
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uint64_t s10; // x26
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uint64_t s11; // x27
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// More temporary registers
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uint64_t t3; // x28
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uint64_t t4; // x29
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uint64_t t5; // x30
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uint64_t t6; // x31
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// Control and Status Register state
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uint64_t mepc; // offset 240 (Saved in traps.S)
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} trap_frame_t;
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void interrupt_init();
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void kpanic(const char *, ...);
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void kpanic_force();
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void handle_trap(trap_frame_t *registers);
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void handle_interrupt(unsigned long code);
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#define KASSERT(cond, msg) \
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if (!(cond)) \
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{ \
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kprint("ASSERTION FAILED: "); \
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kprint(__FILE__); \
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kprint(":"); \
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/* Note: Printing line numbers requires a custom itoa/printf */ \
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kpanic(msg); \
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}
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#endif |