| // See LICENSE for license details. |
| |
| #ifndef _ENV_PHYSICAL_SINGLE_CORE_H |
| #define _ENV_PHYSICAL_SINGLE_CORE_H |
| |
| #include "../encoding.h" |
| |
| //----------------------------------------------------------------------- |
| // Begin Macro |
| //----------------------------------------------------------------------- |
| |
| #define RVTEST_RV64U \ |
| .macro init; \ |
| .endm |
| |
| #define RVTEST_RV64UF \ |
| .macro init; \ |
| RVTEST_FP_ENABLE; \ |
| .endm |
| |
| #define RVTEST_RV64UV \ |
| .macro init; \ |
| RVTEST_VECTOR_ENABLE; \ |
| .endm |
| |
| #define RVTEST_RV32U \ |
| .macro init; \ |
| .endm |
| |
| #define RVTEST_RV32UF \ |
| .macro init; \ |
| RVTEST_FP_ENABLE; \ |
| .endm |
| |
| #define RVTEST_RV32UV \ |
| .macro init; \ |
| RVTEST_VECTOR_ENABLE; \ |
| .endm |
| |
| #define RVTEST_RV64M \ |
| .macro init; \ |
| RVTEST_ENABLE_MACHINE; \ |
| .endm |
| |
| #define RVTEST_RV64S \ |
| .macro init; \ |
| RVTEST_ENABLE_SUPERVISOR; \ |
| .endm |
| |
| #define RVTEST_RV32M \ |
| .macro init; \ |
| RVTEST_ENABLE_MACHINE; \ |
| .endm |
| |
| #define RVTEST_RV32S \ |
| .macro init; \ |
| RVTEST_ENABLE_SUPERVISOR; \ |
| .endm |
| |
| #if __riscv_xlen == 64 |
| # define CHECK_XLEN li a0, 1; slli a0, a0, 31; bgez a0, 1f; RVTEST_PASS; 1: |
| #else |
| # define CHECK_XLEN li a0, 1; slli a0, a0, 31; bltz a0, 1f; RVTEST_PASS; 1: |
| #endif |
| |
| #define INIT_XREG \ |
| li x1, 0; \ |
| li x2, 0; \ |
| li x3, 0; \ |
| li x4, 0; \ |
| li x5, 0; \ |
| li x6, 0; \ |
| li x7, 0; \ |
| li x8, 0; \ |
| li x9, 0; \ |
| li x10, 0; \ |
| li x11, 0; \ |
| li x12, 0; \ |
| li x13, 0; \ |
| li x14, 0; \ |
| li x15, 0; \ |
| li x16, 0; \ |
| li x17, 0; \ |
| li x18, 0; \ |
| li x19, 0; \ |
| li x20, 0; \ |
| li x21, 0; \ |
| li x22, 0; \ |
| li x23, 0; \ |
| li x24, 0; \ |
| li x25, 0; \ |
| li x26, 0; \ |
| li x27, 0; \ |
| li x28, 0; \ |
| li x29, 0; \ |
| li x30, 0; \ |
| li x31, 0; |
| |
| #define INIT_PMP \ |
| la t0, 1f; \ |
| csrw mtvec, t0; \ |
| /* Set up a PMP to permit all accesses */ \ |
| li t0, (1 << (31 + (__riscv_xlen / 64) * (53 - 31))) - 1; \ |
| csrw pmpaddr0, t0; \ |
| li t0, PMP_NAPOT | PMP_R | PMP_W | PMP_X; \ |
| csrw pmpcfg0, t0; \ |
| .align 2; \ |
| 1: |
| |
| #define INIT_SATP \ |
| la t0, 1f; \ |
| csrw mtvec, t0; \ |
| csrwi sptbr, 0; \ |
| .align 2; \ |
| 1: |
| |
| #define DELEGATE_NO_TRAPS \ |
| la t0, 1f; \ |
| csrw mtvec, t0; \ |
| csrwi medeleg, 0; \ |
| csrwi mideleg, 0; \ |
| csrwi mie, 0; \ |
| .align 2; \ |
| 1: |
| |
| #define RVTEST_ENABLE_SUPERVISOR \ |
| li a0, MSTATUS_MPP & (MSTATUS_MPP >> 1); \ |
| csrs mstatus, a0; \ |
| li a0, SIP_SSIP | SIP_STIP; \ |
| csrs mideleg, a0; \ |
| |
| #define RVTEST_ENABLE_MACHINE \ |
| li a0, MSTATUS_MPP; \ |
| csrs mstatus, a0; \ |
| |
| #define RVTEST_FP_ENABLE \ |
| li a0, MSTATUS_FS & (MSTATUS_FS >> 1); \ |
| csrs mstatus, a0; \ |
| csrwi fcsr, 0 |
| |
| #define RVTEST_VECTOR_ENABLE \ |
| li a0, (MSTATUS_VS & (MSTATUS_VS >> 1)) | \ |
| (MSTATUS_FS & (MSTATUS_FS >> 1)); \ |
| csrs mstatus, a0; \ |
| csrwi fcsr, 0 |
| |
| #define RISCV_MULTICORE_DISABLE \ |
| csrr a0, mhartid; \ |
| 1: bnez a0, 1b |
| |
| #define EXTRA_TVEC_USER |
| #define EXTRA_TVEC_MACHINE |
| #define EXTRA_INIT |
| #define EXTRA_INIT_TIMER |
| |
| #define INTERRUPT_HANDLER j other_exception /* No interrupts should occur */ |
| |
| #define RVTEST_CODE_BEGIN \ |
| .section .text.init; \ |
| .align 6; \ |
| .weak stvec_handler; \ |
| .weak mtvec_handler; \ |
| .globl _start; \ |
| _start: \ |
| /* reset vector */ \ |
| j reset_vector; \ |
| .align 2; \ |
| trap_vector: \ |
| /* test whether the test came from pass/fail */ \ |
| csrr t5, mcause; \ |
| li t6, CAUSE_USER_ECALL; \ |
| beq t5, t6, write_tohost; \ |
| li t6, CAUSE_SUPERVISOR_ECALL; \ |
| beq t5, t6, write_tohost; \ |
| li t6, CAUSE_MACHINE_ECALL; \ |
| beq t5, t6, write_tohost; \ |
| /* if an mtvec_handler is defined, jump to it */ \ |
| la t5, mtvec_handler; \ |
| beqz t5, 1f; \ |
| jr t5; \ |
| /* was it an interrupt or an exception? */ \ |
| 1: csrr t5, mcause; \ |
| bgez t5, handle_exception; \ |
| INTERRUPT_HANDLER; \ |
| handle_exception: \ |
| /* we don't know how to handle whatever the exception was */ \ |
| other_exception: \ |
| /* some unhandlable exception occurred */ \ |
| 1: ori TESTNUM, TESTNUM, 1337; \ |
| write_tohost: \ |
| mv a1, TESTNUM; \ |
| /* 1 = success; otherwise (a0 >> 1) is the failed test */ \ |
| srl a1, a1, 1; \ |
| la a0, tohost_data; \ |
| sb a1, 0(a0); \ |
| /* write exit code (binary) to file */ \ |
| li a1, 1; \ |
| li a2, 0; \ |
| la a3, tohost_file; \ |
| .long 0x9E00007B; \ |
| /* shutdown gem5 */ \ |
| li a0, 0; \ |
| .long 0x4200007B; \ |
| j write_tohost; \ |
| reset_vector: \ |
| INIT_XREG; \ |
| RISCV_MULTICORE_DISABLE; \ |
| INIT_SATP; \ |
| INIT_PMP; \ |
| DELEGATE_NO_TRAPS; \ |
| li TESTNUM, 0; \ |
| la t0, trap_vector; \ |
| csrw mtvec, t0; \ |
| CHECK_XLEN; \ |
| /* if an stvec_handler is defined, delegate exceptions to it */ \ |
| la t0, stvec_handler; \ |
| beqz t0, 1f; \ |
| csrw stvec, t0; \ |
| li t0, (1 << CAUSE_LOAD_PAGE_FAULT) | \ |
| (1 << CAUSE_STORE_PAGE_FAULT) | \ |
| (1 << CAUSE_FETCH_PAGE_FAULT) | \ |
| (1 << CAUSE_MISALIGNED_FETCH) | \ |
| (1 << CAUSE_USER_ECALL) | \ |
| (1 << CAUSE_BREAKPOINT); \ |
| csrw medeleg, t0; \ |
| 1: csrwi mstatus, 0; \ |
| init; \ |
| EXTRA_INIT; \ |
| EXTRA_INIT_TIMER; \ |
| la t0, 1f; \ |
| csrw mepc, t0; \ |
| csrr a0, mhartid; \ |
| mret; \ |
| 1: |
| |
| //----------------------------------------------------------------------- |
| // End Macro |
| //----------------------------------------------------------------------- |
| |
| #define RVTEST_CODE_END \ |
| unimp |
| |
| //----------------------------------------------------------------------- |
| // Pass/Fail Macro |
| //----------------------------------------------------------------------- |
| |
| #define RVTEST_PASS \ |
| fence; \ |
| li TESTNUM, 1; \ |
| li a7, 93; \ |
| li a0, 0; \ |
| ecall |
| |
| #define TESTNUM gp |
| #define RVTEST_FAIL \ |
| fence; \ |
| 1: beqz TESTNUM, 1b; \ |
| sll TESTNUM, TESTNUM, 1; \ |
| or TESTNUM, TESTNUM, 1; \ |
| li a7, 93; \ |
| addi a0, TESTNUM, 0; \ |
| ecall |
| |
| //----------------------------------------------------------------------- |
| // Data Section Macro |
| //----------------------------------------------------------------------- |
| |
| #define EXTRA_DATA \ |
| tohost_file: \ |
| .asciz "exitcode"; \ |
| tohost_data: \ |
| .byte 0; |
| |
| #define RVTEST_DATA_BEGIN \ |
| EXTRA_DATA \ |
| .pushsection .tohost,"aw",@progbits; \ |
| .align 6; .global tohost; tohost: .dword 0; \ |
| .align 6; .global fromhost; fromhost: .dword 0; \ |
| .popsection; \ |
| .align 4; .global begin_signature; begin_signature: |
| |
| #define RVTEST_DATA_END .align 4; .global end_signature; end_signature: |
| |
| #endif |
