diff options
Diffstat (limited to 'tests/test-progs/asmtest/src/riscv/env/v/entry.S')
-rw-r--r-- | tests/test-progs/asmtest/src/riscv/env/v/entry.S | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/tests/test-progs/asmtest/src/riscv/env/v/entry.S b/tests/test-progs/asmtest/src/riscv/env/v/entry.S new file mode 100644 index 000000000..97196620f --- /dev/null +++ b/tests/test-progs/asmtest/src/riscv/env/v/entry.S @@ -0,0 +1,125 @@ +#include "riscv_test.h" + +#if __riscv_xlen == 64 +# define STORE sd +# define LOAD ld +# define REGBYTES 8 +#else +# define STORE sw +# define LOAD lw +# define REGBYTES 4 +#endif + +#define STACK_TOP (_end + 4096) + + .section ".text.init","ax",@progbits + .globl _start +_start: + j handle_reset + + /* NMI vector */ +nmi_vector: + j wtf + +trap_vector: + j wtf + +handle_reset: + la t0, trap_vector + csrw mtvec, t0 + la sp, STACK_TOP - SIZEOF_TRAPFRAME_T + csrr t0, mhartid + slli t0, t0, 12 + add sp, sp, t0 + csrw mscratch, sp + la a0, userstart + j vm_boot + + .globl pop_tf +pop_tf: + LOAD t0,33*REGBYTES(a0) + csrw sepc,t0 + LOAD x1,1*REGBYTES(a0) + LOAD x2,2*REGBYTES(a0) + LOAD x3,3*REGBYTES(a0) + LOAD x4,4*REGBYTES(a0) + LOAD x5,5*REGBYTES(a0) + LOAD x6,6*REGBYTES(a0) + LOAD x7,7*REGBYTES(a0) + LOAD x8,8*REGBYTES(a0) + LOAD x9,9*REGBYTES(a0) + LOAD x11,11*REGBYTES(a0) + LOAD x12,12*REGBYTES(a0) + LOAD x13,13*REGBYTES(a0) + LOAD x14,14*REGBYTES(a0) + LOAD x15,15*REGBYTES(a0) + LOAD x16,16*REGBYTES(a0) + LOAD x17,17*REGBYTES(a0) + LOAD x18,18*REGBYTES(a0) + LOAD x19,19*REGBYTES(a0) + LOAD x20,20*REGBYTES(a0) + LOAD x21,21*REGBYTES(a0) + LOAD x22,22*REGBYTES(a0) + LOAD x23,23*REGBYTES(a0) + LOAD x24,24*REGBYTES(a0) + LOAD x25,25*REGBYTES(a0) + LOAD x26,26*REGBYTES(a0) + LOAD x27,27*REGBYTES(a0) + LOAD x28,28*REGBYTES(a0) + LOAD x29,29*REGBYTES(a0) + LOAD x30,30*REGBYTES(a0) + LOAD x31,31*REGBYTES(a0) + LOAD a0,10*REGBYTES(a0) + sret + + .global trap_entry +trap_entry: + csrrw sp, sscratch, sp + + # save gprs + STORE x1,1*REGBYTES(sp) + STORE x3,3*REGBYTES(sp) + STORE x4,4*REGBYTES(sp) + STORE x5,5*REGBYTES(sp) + STORE x6,6*REGBYTES(sp) + STORE x7,7*REGBYTES(sp) + STORE x8,8*REGBYTES(sp) + STORE x9,9*REGBYTES(sp) + STORE x10,10*REGBYTES(sp) + STORE x11,11*REGBYTES(sp) + STORE x12,12*REGBYTES(sp) + STORE x13,13*REGBYTES(sp) + STORE x14,14*REGBYTES(sp) + STORE x15,15*REGBYTES(sp) + STORE x16,16*REGBYTES(sp) + STORE x17,17*REGBYTES(sp) + STORE x18,18*REGBYTES(sp) + STORE x19,19*REGBYTES(sp) + STORE x20,20*REGBYTES(sp) + STORE x21,21*REGBYTES(sp) + STORE x22,22*REGBYTES(sp) + STORE x23,23*REGBYTES(sp) + STORE x24,24*REGBYTES(sp) + STORE x25,25*REGBYTES(sp) + STORE x26,26*REGBYTES(sp) + STORE x27,27*REGBYTES(sp) + STORE x28,28*REGBYTES(sp) + STORE x29,29*REGBYTES(sp) + STORE x30,30*REGBYTES(sp) + STORE x31,31*REGBYTES(sp) + + csrrw t0,sscratch,sp + STORE t0,2*REGBYTES(sp) + + # get sr, epc, badvaddr, cause + csrr t0,sstatus + STORE t0,32*REGBYTES(sp) + csrr t0,sepc + STORE t0,33*REGBYTES(sp) + csrr t0,sbadaddr + STORE t0,34*REGBYTES(sp) + csrr t0,scause + STORE t0,35*REGBYTES(sp) + + move a0, sp + j handle_trap |