| Line 312... |
Line 312... |
neorv32_uart_printf("Zicsr ");
|
neorv32_uart_printf("Zicsr ");
|
}
|
}
|
if (tmp & (1<<CSR_MZEXT_ZIFENCEI)) {
|
if (tmp & (1<<CSR_MZEXT_ZIFENCEI)) {
|
neorv32_uart_printf("Zifencei ");
|
neorv32_uart_printf("Zifencei ");
|
}
|
}
|
|
if (tmp & (1<<CSR_MZEXT_ZBB)) {
|
|
neorv32_uart_printf("Zbb ");
|
|
}
|
|
|
// check physical memory protection
|
// check physical memory protection
|
neorv32_uart_printf("\nPMP: ");
|
neorv32_uart_printf("\nPMP: ");
|
uint32_t pmp_num_regions = neorv32_cpu_pmp_get_num_regions();
|
uint32_t pmp_num_regions = neorv32_cpu_pmp_get_num_regions();
|
if (pmp_num_regions != 0) {
|
if (pmp_num_regions != 0) {
|
| Line 595... |
Line 598... |
"\n"
|
"\n"
|
);
|
);
|
}
|
}
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
|
/**********************************************************************//**
|
|
* NEORV32 runtime environment: Get MISA CSR value according to *compiler/toolchain configuration*.
|
|
*
|
|
* @return MISA content according to compiler configuration.
|
|
**************************************************************************/
|
|
uint32_t neorv32_rte_get_compiler_isa(void) {
|
|
|
|
uint32_t misa_cc = 0;
|
|
|
|
#ifdef __riscv_atomic
|
|
misa_cc |= 1 << CSR_MISA_A_EXT;
|
|
#endif
|
|
|
|
#ifdef __riscv_compressed
|
|
misa_cc |= 1 << CSR_MISA_C_EXT;
|
|
#endif
|
|
|
|
#ifdef __riscv_32e
|
|
misa_cc |= 1 << CSR_MISA_E_EXT;
|
|
#else
|
|
misa_cc |= 1 << CSR_MISA_I_EXT;
|
|
#endif
|
|
|
|
#ifdef __riscv_mul
|
|
misa_cc |= 1 << CSR_MISA_M_EXT;
|
|
#endif
|
|
|
|
#if (__riscv_xlen == 32)
|
|
misa_cc |= 1 << CSR_MISA_MXL_LO_EXT;
|
|
#elif (__riscv_xlen == 64)
|
|
misa_cc |= 2 << CSR_MISA_MXL_LO_EXT;
|
|
#else
|
|
misa_cc |= 3 << CSR_MISA_MXL_LO_EXT;
|
|
#endif
|
|
|
|
return misa_cc;
|
|
}
|
|
|
|
|
|
/**********************************************************************//**
|
|
* NEORV32 runtime environment: Check required ISA extensions (via compiler flags) against available ISA extensions (via MISA csr).
|
|
*
|
|
* @param[in] silent Show error message (via neorv32.uart) if isa_sw > isa_hw when != 0.
|
|
* @return MISA content according to compiler configuration.
|
|
**************************************************************************/
|
|
int neorv32_rte_check_isa(int silent) {
|
|
|
|
uint32_t misa_sw = neorv32_rte_get_compiler_isa();
|
|
uint32_t misa_hw = neorv32_cpu_csr_read(CSR_MISA);
|
|
|
|
// mask hardware features that are not used by software
|
|
uint32_t check = misa_hw & misa_sw;
|
|
|
|
//
|
|
if (check == misa_sw) {
|
|
return 0;
|
|
}
|
|
else {
|
|
if (silent == 0) {
|
|
neorv32_uart_printf("\nWARNING! SW_ISA (features required) vs HW_ISA (features available) mismatch!\n"
|
|
"SW_ISA = 0x%x (compiler flags)\n"
|
|
"HW_ISA = 0x%x (misa csr)\n\n", misa_sw, misa_hw);
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
|
No newline at end of file
|
No newline at end of file
|
