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author | Weiwei Li <liweiwei@iscas.ac.cn> | 2022-07-12 23:21:01 +0800 |
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committer | Weiwei Li <liweiwei@iscas.ac.cn> | 2022-07-17 10:00:52 +0800 |
commit | d6f332d63aa5141cacd652cc5476e9d01ceb91e8 (patch) | |
tree | be1bbef67bca67483350c1cfbf98239acb282225 | |
parent | 89a79b673208a61f7ff16be628955109a742c1ac (diff) | |
download | riscv-isa-sim-d6f332d63aa5141cacd652cc5476e9d01ceb91e8.zip riscv-isa-sim-d6f332d63aa5141cacd652cc5476e9d01ceb91e8.tar.gz riscv-isa-sim-d6f332d63aa5141cacd652cc5476e9d01ceb91e8.tar.bz2 |
add U mode check for *envcfg*
- If U-mode is not supported, then registers menvcfg and menvcfgh do not exist
- Since H extension requires S-mode, and S mode can not exsit without U-mode,
so senvcfg, henvcfg/henvcfgh also do not exist if U-mode is not supported
-rw-r--r-- | riscv/processor.cc | 50 |
1 files changed, 26 insertions, 24 deletions
diff --git a/riscv/processor.cc b/riscv/processor.cc index 92f4b41..df82f9e 100644 --- a/riscv/processor.cc +++ b/riscv/processor.cc @@ -386,30 +386,32 @@ void state_t::reset(processor_t* const proc, reg_t max_isa) csrmap[CSR_MVENDORID] = std::make_shared<const_csr_t>(proc, CSR_MVENDORID, 0); csrmap[CSR_MHARTID] = std::make_shared<const_csr_t>(proc, CSR_MHARTID, proc->get_id()); csrmap[CSR_MCONFIGPTR] = std::make_shared<const_csr_t>(proc, CSR_MCONFIGPTR, 0); - const reg_t menvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? MENVCFG_CBCFE | MENVCFG_CBIE : 0) | - (proc->extension_enabled(EXT_ZICBOZ) ? MENVCFG_CBZE : 0) | - (proc->extension_enabled(EXT_SVPBMT) ? MENVCFG_PBMTE : 0); - const reg_t menvcfg_init = (proc->extension_enabled(EXT_SVPBMT) ? MENVCFG_PBMTE : 0); - menvcfg = std::make_shared<masked_csr_t>(proc, CSR_MENVCFG, menvcfg_mask, menvcfg_init); - if (xlen == 32) { - csrmap[CSR_MENVCFG] = std::make_shared<rv32_low_csr_t>(proc, CSR_MENVCFG, menvcfg); - csrmap[CSR_MENVCFGH] = std::make_shared<rv32_high_csr_t>(proc, CSR_MENVCFGH, menvcfg); - } else { - csrmap[CSR_MENVCFG] = menvcfg; - } - const reg_t senvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? SENVCFG_CBCFE | SENVCFG_CBIE : 0) | - (proc->extension_enabled(EXT_ZICBOZ) ? SENVCFG_CBZE : 0); - csrmap[CSR_SENVCFG] = senvcfg = std::make_shared<senvcfg_csr_t>(proc, CSR_SENVCFG, senvcfg_mask, 0); - const reg_t henvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? HENVCFG_CBCFE | HENVCFG_CBIE : 0) | - (proc->extension_enabled(EXT_ZICBOZ) ? HENVCFG_CBZE : 0) | - (proc->extension_enabled(EXT_SVPBMT) ? HENVCFG_PBMTE : 0); - const reg_t henvcfg_init = (proc->extension_enabled(EXT_SVPBMT) ? HENVCFG_PBMTE : 0); - henvcfg = std::make_shared<henvcfg_csr_t>(proc, CSR_HENVCFG, henvcfg_mask, henvcfg_init, menvcfg); - if (xlen == 32) { - csrmap[CSR_HENVCFG] = std::make_shared<rv32_low_csr_t>(proc, CSR_HENVCFG, henvcfg); - csrmap[CSR_HENVCFGH] = std::make_shared<rv32_high_csr_t>(proc, CSR_HENVCFGH, henvcfg); - } else { - csrmap[CSR_HENVCFG] = henvcfg; + if (proc->extension_enabled_const('U')) { + const reg_t menvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? MENVCFG_CBCFE | MENVCFG_CBIE : 0) | + (proc->extension_enabled(EXT_ZICBOZ) ? MENVCFG_CBZE : 0) | + (proc->extension_enabled(EXT_SVPBMT) ? MENVCFG_PBMTE : 0); + const reg_t menvcfg_init = (proc->extension_enabled(EXT_SVPBMT) ? MENVCFG_PBMTE : 0); + menvcfg = std::make_shared<masked_csr_t>(proc, CSR_MENVCFG, menvcfg_mask, menvcfg_init); + if (xlen == 32) { + csrmap[CSR_MENVCFG] = std::make_shared<rv32_low_csr_t>(proc, CSR_MENVCFG, menvcfg); + csrmap[CSR_MENVCFGH] = std::make_shared<rv32_high_csr_t>(proc, CSR_MENVCFGH, menvcfg); + } else { + csrmap[CSR_MENVCFG] = menvcfg; + } + const reg_t senvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? SENVCFG_CBCFE | SENVCFG_CBIE : 0) | + (proc->extension_enabled(EXT_ZICBOZ) ? SENVCFG_CBZE : 0); + csrmap[CSR_SENVCFG] = senvcfg = std::make_shared<senvcfg_csr_t>(proc, CSR_SENVCFG, senvcfg_mask, 0); + const reg_t henvcfg_mask = (proc->extension_enabled(EXT_ZICBOM) ? HENVCFG_CBCFE | HENVCFG_CBIE : 0) | + (proc->extension_enabled(EXT_ZICBOZ) ? HENVCFG_CBZE : 0) | + (proc->extension_enabled(EXT_SVPBMT) ? HENVCFG_PBMTE : 0); + const reg_t henvcfg_init = (proc->extension_enabled(EXT_SVPBMT) ? HENVCFG_PBMTE : 0); + henvcfg = std::make_shared<henvcfg_csr_t>(proc, CSR_HENVCFG, henvcfg_mask, henvcfg_init, menvcfg); + if (xlen == 32) { + csrmap[CSR_HENVCFG] = std::make_shared<rv32_low_csr_t>(proc, CSR_HENVCFG, henvcfg); + csrmap[CSR_HENVCFGH] = std::make_shared<rv32_high_csr_t>(proc, CSR_HENVCFGH, henvcfg); + } else { + csrmap[CSR_HENVCFG] = henvcfg; + } } if (proc->extension_enabled_const(EXT_SMSTATEEN)) { const reg_t sstateen0_mask = (proc->extension_enabled(EXT_ZFINX) ? SSTATEEN0_FCSR : 0) | SSTATEEN0_CS; |