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[PATCH 4/5] target/loongarch: Add common source file for CSR register
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From: |
Bibo Mao |
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Subject: |
[PATCH 4/5] target/loongarch: Add common source file for CSR register |
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Date: |
Mon, 13 Jan 2025 16:25:56 +0800 |
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>
---
target/loongarch/csr.c | 114 ++++++++++++++++++
target/loongarch/csr.h | 1 +
target/loongarch/meson.build | 1 +
.../tcg/insn_trans/trans_privileged.c.inc | 107 ----------------
4 files changed, 116 insertions(+), 107 deletions(-)
create mode 100644 target/loongarch/csr.c
diff --git a/target/loongarch/csr.c b/target/loongarch/csr.c
new file mode 100644
index 0000000000..62c1815bfb
--- /dev/null
+++ b/target/loongarch/csr.c
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2025 Loongson Technology Corporation Limited
+ */
+#include <stddef.h>
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "csr.h"
+
+#define CSR_OFF_FUNCS(NAME, FL, RD, WR) \
+ [LOONGARCH_CSR_##NAME] = { \
+ .offset = offsetof(CPULoongArchState, CSR_##NAME), \
+ .flags = FL, .readfn = RD, .writefn = WR \
+ }
+
+#define CSR_OFF_ARRAY(NAME, N) \
+ [LOONGARCH_CSR_##NAME(N)] = { \
+ .offset = offsetof(CPULoongArchState, CSR_##NAME[N]), \
+ .flags = 0, .readfn = NULL, .writefn = NULL \
+ }
+
+#define CSR_OFF_FLAGS(NAME, FL) CSR_OFF_FUNCS(NAME, FL, NULL, NULL)
+#define CSR_OFF(NAME) CSR_OFF_FLAGS(NAME, 0)
+
+static CSRInfo csr_info[] = {
+ CSR_OFF_FLAGS(CRMD, CSRFL_EXITTB),
+ CSR_OFF(PRMD),
+ CSR_OFF_FLAGS(EUEN, CSRFL_EXITTB),
+ CSR_OFF_FLAGS(MISC, CSRFL_READONLY),
+ CSR_OFF(ECFG),
+ CSR_OFF_FLAGS(ESTAT, CSRFL_EXITTB),
+ CSR_OFF(ERA),
+ CSR_OFF(BADV),
+ CSR_OFF_FLAGS(BADI, CSRFL_READONLY),
+ CSR_OFF(EENTRY),
+ CSR_OFF(TLBIDX),
+ CSR_OFF(TLBEHI),
+ CSR_OFF(TLBELO0),
+ CSR_OFF(TLBELO1),
+ CSR_OFF_FLAGS(ASID, CSRFL_EXITTB),
+ CSR_OFF(PGDL),
+ CSR_OFF(PGDH),
+ CSR_OFF_FLAGS(PGD, CSRFL_READONLY),
+ CSR_OFF(PWCL),
+ CSR_OFF(PWCH),
+ CSR_OFF(STLBPS),
+ CSR_OFF(RVACFG),
+ CSR_OFF_FLAGS(CPUID, CSRFL_READONLY),
+ CSR_OFF_FLAGS(PRCFG1, CSRFL_READONLY),
+ CSR_OFF_FLAGS(PRCFG2, CSRFL_READONLY),
+ CSR_OFF_FLAGS(PRCFG3, CSRFL_READONLY),
+ CSR_OFF_ARRAY(SAVE, 0),
+ CSR_OFF_ARRAY(SAVE, 1),
+ CSR_OFF_ARRAY(SAVE, 2),
+ CSR_OFF_ARRAY(SAVE, 3),
+ CSR_OFF_ARRAY(SAVE, 4),
+ CSR_OFF_ARRAY(SAVE, 5),
+ CSR_OFF_ARRAY(SAVE, 6),
+ CSR_OFF_ARRAY(SAVE, 7),
+ CSR_OFF_ARRAY(SAVE, 8),
+ CSR_OFF_ARRAY(SAVE, 9),
+ CSR_OFF_ARRAY(SAVE, 10),
+ CSR_OFF_ARRAY(SAVE, 11),
+ CSR_OFF_ARRAY(SAVE, 12),
+ CSR_OFF_ARRAY(SAVE, 13),
+ CSR_OFF_ARRAY(SAVE, 14),
+ CSR_OFF_ARRAY(SAVE, 15),
+ CSR_OFF(TID),
+ CSR_OFF_FLAGS(TCFG, CSRFL_IO),
+ CSR_OFF_FLAGS(TVAL, CSRFL_READONLY | CSRFL_IO),
+ CSR_OFF(CNTC),
+ CSR_OFF_FLAGS(TICLR, CSRFL_IO),
+ CSR_OFF(LLBCTL),
+ CSR_OFF(IMPCTL1),
+ CSR_OFF(IMPCTL2),
+ CSR_OFF(TLBRENTRY),
+ CSR_OFF(TLBRBADV),
+ CSR_OFF(TLBRERA),
+ CSR_OFF(TLBRSAVE),
+ CSR_OFF(TLBRELO0),
+ CSR_OFF(TLBRELO1),
+ CSR_OFF(TLBREHI),
+ CSR_OFF(TLBRPRMD),
+ CSR_OFF(MERRCTL),
+ CSR_OFF(MERRINFO1),
+ CSR_OFF(MERRINFO2),
+ CSR_OFF(MERRENTRY),
+ CSR_OFF(MERRERA),
+ CSR_OFF(MERRSAVE),
+ CSR_OFF(CTAG),
+ CSR_OFF_ARRAY(DMW, 0),
+ CSR_OFF_ARRAY(DMW, 1),
+ CSR_OFF_ARRAY(DMW, 2),
+ CSR_OFF_ARRAY(DMW, 3),
+ CSR_OFF(DBG),
+ CSR_OFF(DERA),
+ CSR_OFF(DSAVE),
+};
+
+CSRInfo *get_csr(unsigned int csr_num)
+{
+ CSRInfo *csr;
+
+ if (csr_num >= ARRAY_SIZE(csr_info)) {
+ return NULL;
+ }
+
+ csr = &csr_info[csr_num];
+ if (csr->offset == 0) {
+ return NULL;
+ }
+
+ return csr;
+}
diff --git a/target/loongarch/csr.h b/target/loongarch/csr.h
index b0e51d51cd..d32a607975 100644
--- a/target/loongarch/csr.h
+++ b/target/loongarch/csr.h
@@ -32,4 +32,5 @@ typedef struct {
GenCSRWrite writefn;
} CSRInfo;
+CSRInfo *get_csr(unsigned int csr_num);
#endif /* TARGET_LOONGARCH_TCG_LOONGARCH_H */
diff --git a/target/loongarch/meson.build b/target/loongarch/meson.build
index 7817318287..20bd3e2f0a 100644
--- a/target/loongarch/meson.build
+++ b/target/loongarch/meson.build
@@ -10,6 +10,7 @@ loongarch_system_ss = ss.source_set()
loongarch_system_ss.add(files(
'arch_dump.c',
'cpu_helper.c',
+ 'csr.c',
'loongarch-qmp-cmds.c',
'machine.c',
))
diff --git a/target/loongarch/tcg/insn_trans/trans_privileged.c.inc
b/target/loongarch/tcg/insn_trans/trans_privileged.c.inc
index 34a7ca39fd..458307e9f1 100644
--- a/target/loongarch/tcg/insn_trans/trans_privileged.c.inc
+++ b/target/loongarch/tcg/insn_trans/trans_privileged.c.inc
@@ -42,99 +42,6 @@ GEN_FALSE_TRANS(idle)
#else
-#define CSR_OFF_FUNCS(NAME, FL, RD, WR) \
- [LOONGARCH_CSR_##NAME] = { \
- .offset = offsetof(CPULoongArchState, CSR_##NAME), \
- .flags = FL, .readfn = RD, .writefn = WR \
- }
-
-#define CSR_OFF_ARRAY(NAME, N) \
- [LOONGARCH_CSR_##NAME(N)] = { \
- .offset = offsetof(CPULoongArchState, CSR_##NAME[N]), \
- .flags = 0, .readfn = NULL, .writefn = NULL \
- }
-
-#define CSR_OFF_FLAGS(NAME, FL) \
- CSR_OFF_FUNCS(NAME, FL, NULL, NULL)
-
-#define CSR_OFF(NAME) \
- CSR_OFF_FLAGS(NAME, 0)
-
-static CSRInfo csr_info[] = {
- CSR_OFF_FLAGS(CRMD, CSRFL_EXITTB),
- CSR_OFF(PRMD),
- CSR_OFF_FLAGS(EUEN, CSRFL_EXITTB),
- CSR_OFF_FLAGS(MISC, CSRFL_READONLY),
- CSR_OFF(ECFG),
- CSR_OFF_FLAGS(ESTAT, CSRFL_EXITTB),
- CSR_OFF(ERA),
- CSR_OFF(BADV),
- CSR_OFF_FLAGS(BADI, CSRFL_READONLY),
- CSR_OFF(EENTRY),
- CSR_OFF(TLBIDX),
- CSR_OFF(TLBEHI),
- CSR_OFF(TLBELO0),
- CSR_OFF(TLBELO1),
- CSR_OFF_FLAGS(ASID, CSRFL_EXITTB),
- CSR_OFF(PGDL),
- CSR_OFF(PGDH),
- CSR_OFF_FLAGS(PGD, CSRFL_READONLY),
- CSR_OFF(PWCL),
- CSR_OFF(PWCH),
- CSR_OFF(STLBPS),
- CSR_OFF(RVACFG),
- CSR_OFF_FLAGS(CPUID, CSRFL_READONLY),
- CSR_OFF_FLAGS(PRCFG1, CSRFL_READONLY),
- CSR_OFF_FLAGS(PRCFG2, CSRFL_READONLY),
- CSR_OFF_FLAGS(PRCFG3, CSRFL_READONLY),
- CSR_OFF_ARRAY(SAVE, 0),
- CSR_OFF_ARRAY(SAVE, 1),
- CSR_OFF_ARRAY(SAVE, 2),
- CSR_OFF_ARRAY(SAVE, 3),
- CSR_OFF_ARRAY(SAVE, 4),
- CSR_OFF_ARRAY(SAVE, 5),
- CSR_OFF_ARRAY(SAVE, 6),
- CSR_OFF_ARRAY(SAVE, 7),
- CSR_OFF_ARRAY(SAVE, 8),
- CSR_OFF_ARRAY(SAVE, 9),
- CSR_OFF_ARRAY(SAVE, 10),
- CSR_OFF_ARRAY(SAVE, 11),
- CSR_OFF_ARRAY(SAVE, 12),
- CSR_OFF_ARRAY(SAVE, 13),
- CSR_OFF_ARRAY(SAVE, 14),
- CSR_OFF_ARRAY(SAVE, 15),
- CSR_OFF(TID),
- CSR_OFF_FLAGS(TCFG, CSRFL_IO),
- CSR_OFF_FLAGS(TVAL, CSRFL_READONLY | CSRFL_IO),
- CSR_OFF(CNTC),
- CSR_OFF_FLAGS(TICLR, CSRFL_IO),
- CSR_OFF(LLBCTL),
- CSR_OFF(IMPCTL1),
- CSR_OFF(IMPCTL2),
- CSR_OFF(TLBRENTRY),
- CSR_OFF(TLBRBADV),
- CSR_OFF(TLBRERA),
- CSR_OFF(TLBRSAVE),
- CSR_OFF(TLBRELO0),
- CSR_OFF(TLBRELO1),
- CSR_OFF(TLBREHI),
- CSR_OFF(TLBRPRMD),
- CSR_OFF(MERRCTL),
- CSR_OFF(MERRINFO1),
- CSR_OFF(MERRINFO2),
- CSR_OFF(MERRENTRY),
- CSR_OFF(MERRERA),
- CSR_OFF(MERRSAVE),
- CSR_OFF(CTAG),
- CSR_OFF_ARRAY(DMW, 0),
- CSR_OFF_ARRAY(DMW, 1),
- CSR_OFF_ARRAY(DMW, 2),
- CSR_OFF_ARRAY(DMW, 3),
- CSR_OFF(DBG),
- CSR_OFF(DERA),
- CSR_OFF(DSAVE),
-};
-
static bool check_plv(DisasContext *ctx)
{
if (ctx->plv == MMU_PLV_USER) {
@@ -144,20 +51,6 @@ static bool check_plv(DisasContext *ctx)
return false;
}
-static CSRInfo *get_csr(unsigned csr_num)
-{
- CSRInfo *csr;
-
- if (csr_num >= ARRAY_SIZE(csr_info)) {
- return NULL;
- }
- csr = &csr_info[csr_num];
- if (csr->offset == 0) {
- return NULL;
- }
- return csr;
-}
-
static bool set_csr_trans_func(unsigned int csr_num, GenCSRRead readfn,
GenCSRWrite writefn)
{
--
2.39.3