mirror of
https://github.com/rcore-os/rCore.git
synced 2024-11-23 08:26:17 +04:00
Fix register size (4->XLEN) in trap handling.
This commit is contained in:
dzy
parent
45b91fbcad
commit
98c94a0d83
@ -17,39 +17,39 @@ _restore_kernel_sp:
|
||||
# sscratch = previous-sp, sp = kernel-sp
|
||||
_save_context:
|
||||
# provide room for trap frame
|
||||
addi sp, sp, -36 * 4
|
||||
addi sp, sp, -36 * XLENB
|
||||
# save x registers except x2 (sp)
|
||||
sw x1, 1*4(sp)
|
||||
sw x3, 3*4(sp)
|
||||
sw x1, 1*XLENB(sp)
|
||||
sw x3, 3*XLENB(sp)
|
||||
# tp(x4) = hartid. DON'T change.
|
||||
# sw x4, 4*4(sp)
|
||||
sw x5, 5*4(sp)
|
||||
sw x6, 6*4(sp)
|
||||
sw x7, 7*4(sp)
|
||||
sw x8, 8*4(sp)
|
||||
sw x9, 9*4(sp)
|
||||
sw x10, 10*4(sp)
|
||||
sw x11, 11*4(sp)
|
||||
sw x12, 12*4(sp)
|
||||
sw x13, 13*4(sp)
|
||||
sw x14, 14*4(sp)
|
||||
sw x15, 15*4(sp)
|
||||
sw x16, 16*4(sp)
|
||||
sw x17, 17*4(sp)
|
||||
sw x18, 18*4(sp)
|
||||
sw x19, 19*4(sp)
|
||||
sw x20, 20*4(sp)
|
||||
sw x21, 21*4(sp)
|
||||
sw x22, 22*4(sp)
|
||||
sw x23, 23*4(sp)
|
||||
sw x24, 24*4(sp)
|
||||
sw x25, 25*4(sp)
|
||||
sw x26, 26*4(sp)
|
||||
sw x27, 27*4(sp)
|
||||
sw x28, 28*4(sp)
|
||||
sw x29, 29*4(sp)
|
||||
sw x30, 30*4(sp)
|
||||
sw x31, 31*4(sp)
|
||||
# sw x4, 4*XLENB(sp)
|
||||
sw x5, 5*XLENB(sp)
|
||||
sw x6, 6*XLENB(sp)
|
||||
sw x7, 7*XLENB(sp)
|
||||
sw x8, 8*XLENB(sp)
|
||||
sw x9, 9*XLENB(sp)
|
||||
sw x10, 10*XLENB(sp)
|
||||
sw x11, 11*XLENB(sp)
|
||||
sw x12, 12*XLENB(sp)
|
||||
sw x13, 13*XLENB(sp)
|
||||
sw x14, 14*XLENB(sp)
|
||||
sw x15, 15*XLENB(sp)
|
||||
sw x16, 16*XLENB(sp)
|
||||
sw x17, 17*XLENB(sp)
|
||||
sw x18, 18*XLENB(sp)
|
||||
sw x19, 19*XLENB(sp)
|
||||
sw x20, 20*XLENB(sp)
|
||||
sw x21, 21*XLENB(sp)
|
||||
sw x22, 22*XLENB(sp)
|
||||
sw x23, 23*XLENB(sp)
|
||||
sw x24, 24*XLENB(sp)
|
||||
sw x25, 25*XLENB(sp)
|
||||
sw x26, 26*XLENB(sp)
|
||||
sw x27, 27*XLENB(sp)
|
||||
sw x28, 28*XLENB(sp)
|
||||
sw x29, 29*XLENB(sp)
|
||||
sw x30, 30*XLENB(sp)
|
||||
sw x31, 31*XLENB(sp)
|
||||
|
||||
# get sp, sstatus, sepc, stval, scause
|
||||
# set sscratch = 0
|
||||
@ -59,20 +59,20 @@ _save_context:
|
||||
csrr s3, (xtval)
|
||||
csrr s4, (xcause)
|
||||
# store sp, sstatus, sepc, sbadvaddr, scause
|
||||
sw s0, 2*4(sp)
|
||||
sw s1, 32*4(sp)
|
||||
sw s2, 33*4(sp)
|
||||
sw s3, 34*4(sp)
|
||||
sw s4, 35*4(sp)
|
||||
sw s0, 2*XLENB(sp)
|
||||
sw s1, 32*XLENB(sp)
|
||||
sw s2, 33*XLENB(sp)
|
||||
sw s3, 34*XLENB(sp)
|
||||
sw s4, 35*XLENB(sp)
|
||||
.endm
|
||||
|
||||
.macro RESTORE_ALL
|
||||
lw s1, 32*4(sp) # s1 = sstatus
|
||||
lw s2, 33*4(sp) # s2 = sepc
|
||||
lw s1, 32*XLENB(sp) # s1 = sstatus
|
||||
lw s2, 33*XLENB(sp) # s2 = sepc
|
||||
andi s0, s1, 1 << 8
|
||||
bnez s0, _restore_context # back to S-mode? (sstatus.SPP = 1)
|
||||
_save_kernel_sp:
|
||||
addi s0, sp, 36*4
|
||||
addi s0, sp, 36*XLENB
|
||||
csrw (xscratch), s0 # sscratch = kernel-sp
|
||||
_restore_context:
|
||||
# restore sstatus, sepc
|
||||
@ -80,38 +80,38 @@ _restore_context:
|
||||
csrw (xepc), s2
|
||||
|
||||
# restore x registers except x2 (sp)
|
||||
lw x1, 1*4(sp)
|
||||
lw x3, 3*4(sp)
|
||||
# lw x4, 4*4(sp)
|
||||
lw x5, 5*4(sp)
|
||||
lw x6, 6*4(sp)
|
||||
lw x7, 7*4(sp)
|
||||
lw x8, 8*4(sp)
|
||||
lw x9, 9*4(sp)
|
||||
lw x10, 10*4(sp)
|
||||
lw x11, 11*4(sp)
|
||||
lw x12, 12*4(sp)
|
||||
lw x13, 13*4(sp)
|
||||
lw x14, 14*4(sp)
|
||||
lw x15, 15*4(sp)
|
||||
lw x16, 16*4(sp)
|
||||
lw x17, 17*4(sp)
|
||||
lw x18, 18*4(sp)
|
||||
lw x19, 19*4(sp)
|
||||
lw x20, 20*4(sp)
|
||||
lw x21, 21*4(sp)
|
||||
lw x22, 22*4(sp)
|
||||
lw x23, 23*4(sp)
|
||||
lw x24, 24*4(sp)
|
||||
lw x25, 25*4(sp)
|
||||
lw x26, 26*4(sp)
|
||||
lw x27, 27*4(sp)
|
||||
lw x28, 28*4(sp)
|
||||
lw x29, 29*4(sp)
|
||||
lw x30, 30*4(sp)
|
||||
lw x31, 31*4(sp)
|
||||
lw x1, 1*XLENB(sp)
|
||||
lw x3, 3*XLENB(sp)
|
||||
# lw x4, 4*XLENB(sp)
|
||||
lw x5, 5*XLENB(sp)
|
||||
lw x6, 6*XLENB(sp)
|
||||
lw x7, 7*XLENB(sp)
|
||||
lw x8, 8*XLENB(sp)
|
||||
lw x9, 9*XLENB(sp)
|
||||
lw x10, 10*XLENB(sp)
|
||||
lw x11, 11*XLENB(sp)
|
||||
lw x12, 12*XLENB(sp)
|
||||
lw x13, 13*XLENB(sp)
|
||||
lw x14, 14*XLENB(sp)
|
||||
lw x15, 15*XLENB(sp)
|
||||
lw x16, 16*XLENB(sp)
|
||||
lw x17, 17*XLENB(sp)
|
||||
lw x18, 18*XLENB(sp)
|
||||
lw x19, 19*XLENB(sp)
|
||||
lw x20, 20*XLENB(sp)
|
||||
lw x21, 21*XLENB(sp)
|
||||
lw x22, 22*XLENB(sp)
|
||||
lw x23, 23*XLENB(sp)
|
||||
lw x24, 24*XLENB(sp)
|
||||
lw x25, 25*XLENB(sp)
|
||||
lw x26, 26*XLENB(sp)
|
||||
lw x27, 27*XLENB(sp)
|
||||
lw x28, 28*XLENB(sp)
|
||||
lw x29, 29*XLENB(sp)
|
||||
lw x30, 30*XLENB(sp)
|
||||
lw x31, 31*XLENB(sp)
|
||||
# restore sp last
|
||||
lw x2, 2*4(sp)
|
||||
lw x2, 2*XLENB(sp)
|
||||
.endm
|
||||
|
||||
.section .text
|
||||
|
||||
@ -49,6 +49,7 @@ int __atomic_fetch_sub_4(int* ptr, int val) {
|
||||
return res;
|
||||
}
|
||||
|
||||
#ifdef TARGET_IS_64BITS
|
||||
typedef unsigned long long u64;
|
||||
|
||||
u64 __atomic_load_8(u64 *src) {
|
||||
@ -87,3 +88,4 @@ u64 __atomic_fetch_sub_8(u64* ptr, u64 val) {
|
||||
__asm__ __volatile__("amoadd.d.rl %0, %1, (%2)" : "=r"(res) : "r"(-val), "r"(ptr) : "memory");
|
||||
return res;
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -63,6 +63,18 @@ global_asm!("
|
||||
.macro XRET\n sret\n .endm
|
||||
");
|
||||
|
||||
#[cfg(target_pointer_width = "32")]
|
||||
global_asm!("
|
||||
.equ XLENB, 4
|
||||
.equ XLENb, 32
|
||||
");
|
||||
#[cfg(target_pointer_width = "64")]
|
||||
global_asm!("
|
||||
.equ XLENB, 8
|
||||
.equ XLENb, 64
|
||||
");
|
||||
|
||||
|
||||
#[cfg(feature = "board_k210")]
|
||||
global_asm!(include_str!("boot/boot_k210.asm"));
|
||||
global_asm!(include_str!("boot/entry.asm"));
|
||||
|
||||
Loading…
Reference in New Issue
Block a user