target/loongarch: Add common source file for CSR register
Common source file csr.c is added here, it can be used by both TCG mode and kvm mode. The common code is removed from file tcg/insn_trans/trans_privileged.c.inc to csrc.c Signed-off-by: Bibo Mao <maobibo@loongson.cn>
This commit is contained in:
Bibo Mao
parent
d03114ea20
commit
cb6fa4142f
114
target/loongarch/csr.c
Normal file
114
target/loongarch/csr.c
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@ -0,0 +1,114 @@
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2025 Loongson Technology Corporation Limited
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*/
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#include <stddef.h>
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "csr.h"
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#define CSR_OFF_FUNCS(NAME, FL, RD, WR) \
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[LOONGARCH_CSR_##NAME] = { \
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.offset = offsetof(CPULoongArchState, CSR_##NAME), \
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.flags = FL, .readfn = RD, .writefn = WR \
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}
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#define CSR_OFF_ARRAY(NAME, N) \
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[LOONGARCH_CSR_##NAME(N)] = { \
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.offset = offsetof(CPULoongArchState, CSR_##NAME[N]), \
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.flags = 0, .readfn = NULL, .writefn = NULL \
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}
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#define CSR_OFF_FLAGS(NAME, FL) CSR_OFF_FUNCS(NAME, FL, NULL, NULL)
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#define CSR_OFF(NAME) CSR_OFF_FLAGS(NAME, 0)
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static CSRInfo csr_info[] = {
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CSR_OFF_FLAGS(CRMD, CSRFL_EXITTB),
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CSR_OFF(PRMD),
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CSR_OFF_FLAGS(EUEN, CSRFL_EXITTB),
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CSR_OFF_FLAGS(MISC, CSRFL_READONLY),
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CSR_OFF(ECFG),
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CSR_OFF_FLAGS(ESTAT, CSRFL_EXITTB),
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CSR_OFF(ERA),
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CSR_OFF(BADV),
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CSR_OFF_FLAGS(BADI, CSRFL_READONLY),
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CSR_OFF(EENTRY),
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CSR_OFF(TLBIDX),
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CSR_OFF(TLBEHI),
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CSR_OFF(TLBELO0),
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CSR_OFF(TLBELO1),
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CSR_OFF_FLAGS(ASID, CSRFL_EXITTB),
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CSR_OFF(PGDL),
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CSR_OFF(PGDH),
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CSR_OFF_FLAGS(PGD, CSRFL_READONLY),
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CSR_OFF(PWCL),
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CSR_OFF(PWCH),
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CSR_OFF(STLBPS),
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CSR_OFF(RVACFG),
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CSR_OFF_FLAGS(CPUID, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG1, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG2, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG3, CSRFL_READONLY),
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CSR_OFF_ARRAY(SAVE, 0),
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CSR_OFF_ARRAY(SAVE, 1),
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CSR_OFF_ARRAY(SAVE, 2),
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CSR_OFF_ARRAY(SAVE, 3),
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CSR_OFF_ARRAY(SAVE, 4),
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CSR_OFF_ARRAY(SAVE, 5),
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CSR_OFF_ARRAY(SAVE, 6),
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CSR_OFF_ARRAY(SAVE, 7),
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CSR_OFF_ARRAY(SAVE, 8),
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CSR_OFF_ARRAY(SAVE, 9),
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CSR_OFF_ARRAY(SAVE, 10),
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CSR_OFF_ARRAY(SAVE, 11),
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CSR_OFF_ARRAY(SAVE, 12),
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CSR_OFF_ARRAY(SAVE, 13),
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CSR_OFF_ARRAY(SAVE, 14),
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CSR_OFF_ARRAY(SAVE, 15),
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CSR_OFF(TID),
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CSR_OFF_FLAGS(TCFG, CSRFL_IO),
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CSR_OFF_FLAGS(TVAL, CSRFL_READONLY | CSRFL_IO),
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CSR_OFF(CNTC),
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CSR_OFF_FLAGS(TICLR, CSRFL_IO),
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CSR_OFF(LLBCTL),
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CSR_OFF(IMPCTL1),
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CSR_OFF(IMPCTL2),
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CSR_OFF(TLBRENTRY),
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CSR_OFF(TLBRBADV),
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CSR_OFF(TLBRERA),
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CSR_OFF(TLBRSAVE),
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CSR_OFF(TLBRELO0),
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CSR_OFF(TLBRELO1),
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CSR_OFF(TLBREHI),
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CSR_OFF(TLBRPRMD),
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CSR_OFF(MERRCTL),
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CSR_OFF(MERRINFO1),
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CSR_OFF(MERRINFO2),
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CSR_OFF(MERRENTRY),
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CSR_OFF(MERRERA),
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CSR_OFF(MERRSAVE),
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CSR_OFF(CTAG),
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CSR_OFF_ARRAY(DMW, 0),
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CSR_OFF_ARRAY(DMW, 1),
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CSR_OFF_ARRAY(DMW, 2),
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CSR_OFF_ARRAY(DMW, 3),
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CSR_OFF(DBG),
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CSR_OFF(DERA),
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CSR_OFF(DSAVE),
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};
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CSRInfo *get_csr(unsigned int csr_num)
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{
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CSRInfo *csr;
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if (csr_num >= ARRAY_SIZE(csr_info)) {
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return NULL;
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}
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csr = &csr_info[csr_num];
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if (csr->offset == 0) {
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return NULL;
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}
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return csr;
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}
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@ -22,4 +22,5 @@ typedef struct {
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GenCSRFunc writefn;
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GenCSRFunc writefn;
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} CSRInfo;
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} CSRInfo;
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CSRInfo *get_csr(unsigned int csr_num);
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#endif /* TARGET_LOONGARCH_CSR_H */
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#endif /* TARGET_LOONGARCH_CSR_H */
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@ -10,6 +10,7 @@ loongarch_system_ss = ss.source_set()
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loongarch_system_ss.add(files(
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loongarch_system_ss.add(files(
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'arch_dump.c',
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'arch_dump.c',
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'cpu_helper.c',
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'cpu_helper.c',
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'csr.c',
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'loongarch-qmp-cmds.c',
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'loongarch-qmp-cmds.c',
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'machine.c',
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'machine.c',
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))
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))
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@ -45,99 +45,6 @@ GEN_FALSE_TRANS(idle)
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typedef void (*GenCSRRead)(TCGv dest, TCGv_ptr env);
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typedef void (*GenCSRRead)(TCGv dest, TCGv_ptr env);
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typedef void (*GenCSRWrite)(TCGv dest, TCGv_ptr env, TCGv src);
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typedef void (*GenCSRWrite)(TCGv dest, TCGv_ptr env, TCGv src);
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#define CSR_OFF_FUNCS(NAME, FL, RD, WR) \
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[LOONGARCH_CSR_##NAME] = { \
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.offset = offsetof(CPULoongArchState, CSR_##NAME), \
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.flags = FL, .readfn = RD, .writefn = WR \
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}
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#define CSR_OFF_ARRAY(NAME, N) \
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[LOONGARCH_CSR_##NAME(N)] = { \
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.offset = offsetof(CPULoongArchState, CSR_##NAME[N]), \
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.flags = 0, .readfn = NULL, .writefn = NULL \
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}
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#define CSR_OFF_FLAGS(NAME, FL) \
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CSR_OFF_FUNCS(NAME, FL, NULL, NULL)
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#define CSR_OFF(NAME) \
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CSR_OFF_FLAGS(NAME, 0)
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static CSRInfo csr_info[] = {
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CSR_OFF_FLAGS(CRMD, CSRFL_EXITTB),
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CSR_OFF(PRMD),
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CSR_OFF_FLAGS(EUEN, CSRFL_EXITTB),
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CSR_OFF_FLAGS(MISC, CSRFL_READONLY),
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CSR_OFF(ECFG),
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CSR_OFF_FLAGS(ESTAT, CSRFL_EXITTB),
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CSR_OFF(ERA),
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CSR_OFF(BADV),
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CSR_OFF_FLAGS(BADI, CSRFL_READONLY),
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CSR_OFF(EENTRY),
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CSR_OFF(TLBIDX),
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CSR_OFF(TLBEHI),
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CSR_OFF(TLBELO0),
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CSR_OFF(TLBELO1),
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CSR_OFF_FLAGS(ASID, CSRFL_EXITTB),
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CSR_OFF(PGDL),
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CSR_OFF(PGDH),
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CSR_OFF_FLAGS(PGD, CSRFL_READONLY),
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CSR_OFF(PWCL),
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CSR_OFF(PWCH),
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CSR_OFF(STLBPS),
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CSR_OFF(RVACFG),
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CSR_OFF_FLAGS(CPUID, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG1, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG2, CSRFL_READONLY),
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CSR_OFF_FLAGS(PRCFG3, CSRFL_READONLY),
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CSR_OFF_ARRAY(SAVE, 0),
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CSR_OFF_ARRAY(SAVE, 1),
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CSR_OFF_ARRAY(SAVE, 2),
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CSR_OFF_ARRAY(SAVE, 3),
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CSR_OFF_ARRAY(SAVE, 4),
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CSR_OFF_ARRAY(SAVE, 5),
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CSR_OFF_ARRAY(SAVE, 6),
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CSR_OFF_ARRAY(SAVE, 7),
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CSR_OFF_ARRAY(SAVE, 8),
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CSR_OFF_ARRAY(SAVE, 9),
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CSR_OFF_ARRAY(SAVE, 10),
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CSR_OFF_ARRAY(SAVE, 11),
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CSR_OFF_ARRAY(SAVE, 12),
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CSR_OFF_ARRAY(SAVE, 13),
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CSR_OFF_ARRAY(SAVE, 14),
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CSR_OFF_ARRAY(SAVE, 15),
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CSR_OFF(TID),
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CSR_OFF_FLAGS(TCFG, CSRFL_IO),
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CSR_OFF_FLAGS(TVAL, CSRFL_READONLY | CSRFL_IO),
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CSR_OFF(CNTC),
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CSR_OFF_FLAGS(TICLR, CSRFL_IO),
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CSR_OFF(LLBCTL),
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CSR_OFF(IMPCTL1),
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CSR_OFF(IMPCTL2),
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CSR_OFF(TLBRENTRY),
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CSR_OFF(TLBRBADV),
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CSR_OFF(TLBRERA),
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CSR_OFF(TLBRSAVE),
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CSR_OFF(TLBRELO0),
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CSR_OFF(TLBRELO1),
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CSR_OFF(TLBREHI),
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CSR_OFF(TLBRPRMD),
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CSR_OFF(MERRCTL),
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CSR_OFF(MERRINFO1),
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CSR_OFF(MERRINFO2),
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CSR_OFF(MERRENTRY),
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CSR_OFF(MERRERA),
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CSR_OFF(MERRSAVE),
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CSR_OFF(CTAG),
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CSR_OFF_ARRAY(DMW, 0),
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CSR_OFF_ARRAY(DMW, 1),
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CSR_OFF_ARRAY(DMW, 2),
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CSR_OFF_ARRAY(DMW, 3),
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CSR_OFF(DBG),
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CSR_OFF(DERA),
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CSR_OFF(DSAVE),
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};
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static bool check_plv(DisasContext *ctx)
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static bool check_plv(DisasContext *ctx)
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{
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{
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if (ctx->plv == MMU_PLV_USER) {
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if (ctx->plv == MMU_PLV_USER) {
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@ -147,20 +54,6 @@ static bool check_plv(DisasContext *ctx)
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return false;
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return false;
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}
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}
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static CSRInfo *get_csr(unsigned csr_num)
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{
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CSRInfo *csr;
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if (csr_num >= ARRAY_SIZE(csr_info)) {
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return NULL;
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}
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csr = &csr_info[csr_num];
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if (csr->offset == 0) {
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return NULL;
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}
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return csr;
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}
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static bool set_csr_trans_func(unsigned int csr_num, GenCSRRead readfn,
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static bool set_csr_trans_func(unsigned int csr_num, GenCSRRead readfn,
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GenCSRWrite writefn)
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GenCSRWrite writefn)
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{
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{
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