banan-os/kernel/arch/x86_64/interrupts.S

197 lines
2.2 KiB
ArmAsm

.macro pushaq
pushq %rax
pushq %rcx
pushq %rdx
pushq %rbx
pushq %rbp
pushq %rsi
pushq %rdi
pushq %r8
pushq %r9
pushq %r10
pushq %r11
pushq %r12
pushq %r13
pushq %r14
pushq %r15
.endm
.macro popaq
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rdi
popq %rsi
popq %rbp
popq %rbx
popq %rdx
popq %rcx
popq %rax
.endm
.macro popaq_no_rax
popq %r15
popq %r14
popq %r13
popq %r12
popq %r11
popq %r10
popq %r9
popq %r8
popq %rdi
popq %rsi
popq %rbp
popq %rbx
popq %rdx
popq %rcx
.endm
isr_stub:
pushaq
movq %cr0, %rax; pushq %rax
movq %cr2, %rax; pushq %rax
movq %cr3, %rax; pushq %rax
movq %cr4, %rax; pushq %rax
movq 152(%rsp), %rdi // isr number
movq 160(%rsp), %rsi // error code
leaq 168(%rsp), %rdx // interrupt stack ptr
movq %rsp, %rcx // register ptr
call cpp_isr_handler
addq $32, %rsp
popaq
addq $16, %rsp
iretq
irq_stub:
pushaq
movq 120(%rsp), %rdi # irq number
call cpp_irq_handler
popaq
addq $16, %rsp
iretq
.macro isr n
.global isr\n
isr\n:
pushq $0
pushq $\n
jmp isr_stub
.endm
.macro isr_err n
.global isr\n
isr\n:
pushq $\n
jmp isr_stub
.endm
.macro irq n
.global irq\n
irq\n:
pushq $0
pushq $\n
jmp irq_stub
.endm
isr 0
isr 1
isr 2
isr 3
isr 4
isr 5
isr 6
isr 7
isr_err 8
isr 9
isr_err 10
isr_err 11
isr_err 12
isr_err 13
isr_err 14
isr 15
isr 16
isr_err 17
isr 18
isr 19
isr 20
isr 21
isr 22
isr 23
isr 24
isr 25
isr 26
isr 27
isr 28
isr 29
isr 30
isr 31
irq 0
irq 1
irq 2
irq 3
irq 4
irq 5
irq 6
irq 7
irq 8
irq 9
irq 10
irq 11
irq 12
irq 13
irq 14
irq 15
irq 16
irq 17
irq 18
irq 19
irq 20
irq 21
irq 22
irq 23
irq 24
irq 25
irq 26
irq 27
irq 28
irq 29
irq 30
irq 31
.global asm_reschedule_handler
asm_reschedule_handler:
pushaq
leaq 120(%rsp), %rdi # interrupt stack ptr
movq %rsp, %rsi # interrupt register ptr
call cpp_reschedule_handler
popaq
iretq
// arguments in RAX, RBX, RCX, RDX, RSI, RDI
// System V ABI: RDI, RSI, RDX, RCX, R8, R9
.global syscall_asm
syscall_asm:
pushaq
movq %rsi, %r8
movq %rdi, %r9
movq %rax, %rdi
movq %rbx, %rsi
xchgq %rcx, %rdx
movq %rsp, %rbx
addq $120, %rbx
pushq %rbx
call cpp_syscall_handler
addq $8, %rsp
popaq_no_rax
addq $8, %rsp
iretq