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target/arm: Add wrapper macros for accessing tbflags

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We're about to split tbflags into two parts.  These macros
will ensure that the correct part is used with the correct
set of bits.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210419202257.161730-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-04-19 13:22:30 -07:00 • committed by Peter Maydell
parent ae6eb1e9b3
commit a729a46b05
5 changed files with 101 additions and 92 deletions
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22
target/arm/cpu.h
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@ -3462,6 +3462,26 @@ FIELD(TBFLAG_A64, TCMA, 16, 2)
FIELD(TBFLAG_A64, MTE_ACTIVE, 18, 1)
FIELD(TBFLAG_A64, MTE0_ACTIVE, 19, 1)
/*
* Helpers for using the above.
*/
#define DP_TBFLAG_ANY(DST, WHICH, VAL) \
(DST = FIELD_DP32(DST, TBFLAG_ANY, WHICH, VAL))
#define DP_TBFLAG_A64(DST, WHICH, VAL) \
(DST = FIELD_DP32(DST, TBFLAG_A64, WHICH, VAL))
#define DP_TBFLAG_A32(DST, WHICH, VAL) \
(DST = FIELD_DP32(DST, TBFLAG_A32, WHICH, VAL))
#define DP_TBFLAG_M32(DST, WHICH, VAL) \
(DST = FIELD_DP32(DST, TBFLAG_M32, WHICH, VAL))
#define DP_TBFLAG_AM32(DST, WHICH, VAL) \
(DST = FIELD_DP32(DST, TBFLAG_AM32, WHICH, VAL))
#define EX_TBFLAG_ANY(IN, WHICH) FIELD_EX32(IN, TBFLAG_ANY, WHICH)
#define EX_TBFLAG_A64(IN, WHICH) FIELD_EX32(IN, TBFLAG_A64, WHICH)
#define EX_TBFLAG_A32(IN, WHICH) FIELD_EX32(IN, TBFLAG_A32, WHICH)
#define EX_TBFLAG_M32(IN, WHICH) FIELD_EX32(IN, TBFLAG_M32, WHICH)
#define EX_TBFLAG_AM32(IN, WHICH) FIELD_EX32(IN, TBFLAG_AM32, WHICH)
/**
* cpu_mmu_index:
* @env: The cpu environment
@ -3472,7 +3492,7 @@ FIELD(TBFLAG_A64, MTE0_ACTIVE, 19, 1)
*/
static inline int cpu_mmu_index(CPUARMState *env, bool ifetch)
{
return FIELD_EX32(env->hflags, TBFLAG_ANY, MMUIDX);
return EX_TBFLAG_ANY(env->hflags, MMUIDX);
}
static inline bool bswap_code(bool sctlr_b)