| // See LICENSE for license details. |
| |
| #ifndef _ENV_PHYSICAL_SINGLE_CORE_TIMER_H |
| #define _ENV_PHYSICAL_SINGLE_CORE_TIMER_H |
| |
| #include "../p/riscv_test.h" |
| |
| #define TIMER_INTERVAL 2 |
| |
| #undef EXTRA_INIT_TIMER |
| #define EXTRA_INIT_TIMER \ |
| li a0, MIP_MTIP; \ |
| csrs mie, a0; \ |
| csrr a0, mtime; \ |
| addi a0, a0, TIMER_INTERVAL; \ |
| csrw mtimecmp, a0; \ |
| |
| #if SSTATUS_XS != 0x18000 |
| # error |
| #endif |
| #define XS_SHIFT 15 |
| |
| #undef INTERRUPT_HANDLER |
| #define INTERRUPT_HANDLER \ |
| slli t5, t5, 1; \ |
| srli t5, t5, 1; \ |
| add t5, t5, -IRQ_M_TIMER; \ |
| bnez t5, other_exception; /* other interrups shouldn't happen */\ |
| csrr t5, mtime; \ |
| addi t5, t5, TIMER_INTERVAL; \ |
| csrw mtimecmp, t5; \ |
| mret; \ |
| |
| //----------------------------------------------------------------------- |
| // Data Section Macro |
| //----------------------------------------------------------------------- |
| |
| #undef EXTRA_DATA |
| #define EXTRA_DATA \ |
| .align 3; \ |
| regspill: \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| .dword 0xdeadbeefcafebabe; \ |
| evac: \ |
| .skip 32768; \ |
| |
| #endif |
