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target/arm: Move arm_pamax, pamax_map into ptw.c

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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220604040607.269301-19-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-08 19:38:52 +01:00 committed by Peter Maydell
parent cd6bc4d517
commit 1c73d84807
3 changed files with 25 additions and 27 deletions
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25
target/arm/helper.c
View File

@ -10814,31 +10814,6 @@ bool check_s2_mmu_setup(ARMCPU *cpu, bool is_aa64, int level,
}
#endif /* !CONFIG_USER_ONLY */
/* This mapping is common between ID_AA64MMFR0.PARANGE and TCR_ELx.{I}PS. */
const uint8_t pamax_map[] = {
[0] = 32,
[1] = 36,
[2] = 40,
[3] = 42,
[4] = 44,
[5] = 48,
[6] = 52,
};
/* The cpu-specific constant value of PAMax; also used by hw/arm/virt. */
unsigned int arm_pamax(ARMCPU *cpu)
{
unsigned int parange =
FIELD_EX64(cpu->isar.id_aa64mmfr0, ID_AA64MMFR0, PARANGE);
/*
* id_aa64mmfr0 is a read-only register so values outside of the
* supported mappings can be considered an implementation error.
*/
assert(parange < ARRAY_SIZE(pamax_map));
return pamax_map[parange];
}
int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx)
{
if (regime_has_2_ranges(mmu_idx)) {

25
target/arm/ptw.c
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@ -23,6 +23,31 @@ static bool get_phys_addr_lpae(CPUARMState *env, uint64_t address,
ARMMMUFaultInfo *fi, ARMCacheAttrs *cacheattrs)
__attribute__((nonnull));
/* This mapping is common between ID_AA64MMFR0.PARANGE and TCR_ELx.{I}PS. */
static const uint8_t pamax_map[] = {
[0] = 32,
[1] = 36,
[2] = 40,
[3] = 42,
[4] = 44,
[5] = 48,
[6] = 52,
};
/* The cpu-specific constant value of PAMax; also used by hw/arm/virt. */
unsigned int arm_pamax(ARMCPU *cpu)
{
unsigned int parange =
FIELD_EX64(cpu->isar.id_aa64mmfr0, ID_AA64MMFR0, PARANGE);
/*
* id_aa64mmfr0 is a read-only register so values outside of the
* supported mappings can be considered an implementation error.
*/
assert(parange < ARRAY_SIZE(pamax_map));
return pamax_map[parange];
}
static bool regime_translation_big_endian(CPUARMState *env, ARMMMUIdx mmu_idx)
{
return (regime_sctlr(env, mmu_idx) & SCTLR_EE) != 0;

2
target/arm/ptw.h
View File

@ -11,8 +11,6 @@
#ifndef CONFIG_USER_ONLY
extern const uint8_t pamax_map[7];
bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx);
bool regime_translation_disabled(CPUARMState *env, ARMMMUIdx mmu_idx);
uint64_t regime_ttbr(CPUARMState *env, ARMMMUIdx mmu_idx, int ttbrn);