tests/riscv-tests/riscv_test.h

// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// A simplified RISCV test header file to replace the pass/fail condition with
// Kelvin-specific termination calls.

#ifndef TESTS_RISCV_TESTS_RISCV_TEST_H_
#define TESTS_RISCV_TESTS_RISCV_TEST_H_

#define RVTEST_RV32U \
  .macro init;       \
  .endm
#define RVTEST_RV32M \
  .macro init;       \
  .endm
#define RVTEST_CODE_BEGIN \
  .globl _start;          \
  _start:
#define RVTEST_CODE_END
#define TESTNUM gp
#define RVTEST_PASS mpause
#define RVTEST_FAIL ebreak
#define EXTRA_DATA
// clang-format off
#define RVTEST_DATA_BEGIN                                           \
  EXTRA_DATA                                                        \
  .pushsection .tohost, "aw", @progbits;                            \
  .align 6; .global tohost; tohost: .dword 0; .size tohost, 8;      \
  .align 6; .global fromhost; fromhost: .dword 0; .size fromhost, 8;\
  .popsection;                                                      \
  .align 4;                                                         \
  .global begin_signature;                                          \
  begin_signature:
// clang-format on
#define RVTEST_DATA_END  \
  .align 4;              \
  .global end_signature; \
  end_signature:

#define MSTATUS_FS (0x00006000)
#define MSTATUS_MPP (0x00001800)
#define CAUSE_USER_ECALL (0x8)
#define CAUSE_ILLEGAL_INSTRUCTION (0x2)

#endif  // TESTS_RISCV_TESTS_RISCV_TEST_H_