target/loongarch: Add default CSRFL_BASIC info with flags field
With CSR array structure, its validity is checked from offset field. Now default CSRFL_BASIC information is added with flags field and its validility can be checked with flags field. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Tested-by: Song Gao <gaosong@loongson.cn> Message-ID: <20260605083854.175625-1-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
Bibo Mao committed
Jun 5, 2026 at 16:38 UTC
9d1a6d194ee9e589406df8a54c48b1f3fbd279fa
2 files changed
+4
-3
target/loongarch/csr.c
+3
-3
@@ -17,11 +17,11 @@
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[LOONGARCH_CSR_##NAME(N)] = { \
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.name = (stringify(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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+ .flags = CSRFL_BASIC, .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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+#define CSR_OFF(NAME) CSR_OFF_FLAGS(NAME, CSRFL_BASIC)
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static CSRInfo csr_info[] = {
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CSR_OFF_FLAGS(CRMD, CSRFL_EXITTB),
@@ -144,7 +144,7 @@ CSRInfo *get_csr(unsigned int csr_num)
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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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+ if (csr->flags == 0) {
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return NULL;
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}
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target/loongarch/csr.h
+1
@@ -14,6 +14,7 @@ enum {
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CSRFL_EXITTB = (1 << 1),
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CSRFL_IO = (1 << 2),
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CSRFL_UNUSED = (1 << 3),
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+ CSRFL_BASIC = (1 << 4),
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};
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typedef struct {