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| author | Fabian Aggeler <aggelerf@ethz.ch> | 2014-12-11 12:07:50 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-12-11 12:07:50 +0000 |
| commit | b85a1fd61c4d72c7928cd9b70f9f59fb2895936d (patch) | |
| tree | 4dd83df7d63b6932ba0de15dcb9c30d35072c1e7 /target-arm | |
| parent | 6e8801f9dea9e10449f4fd7d85dbe8cab708a686 (diff) | |
| download | qemu-b85a1fd61c4d72c7928cd9b70f9f59fb2895936d.zip qemu-b85a1fd61c4d72c7928cd9b70f9f59fb2895936d.tar.gz qemu-b85a1fd61c4d72c7928cd9b70f9f59fb2895936d.tar.bz2 | |
target-arm: make CSSELR banked
Rename CSSELR (cache size selection register) and add secure
instance (AArch32).
Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch>
Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1416242878-876-16-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/cpu.h | 10 | ||||
| -rw-r--r-- | target-arm/helper.c | 14 |
2 files changed, 20 insertions, 4 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 6559aa8..f06d209 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -177,7 +177,15 @@ typedef struct CPUARMState { /* System control coprocessor (cp15) */ struct { uint32_t c0_cpuid; - uint64_t c0_cssel; /* Cache size selection. */ + union { /* Cache size selection */ + struct { + uint64_t _unused_csselr0; + uint64_t csselr_ns; + uint64_t _unused_csselr1; + uint64_t csselr_s; + }; + uint64_t csselr_el[4]; + }; union { /* System control register. */ struct { uint64_t _unused_sctlr; diff --git a/target-arm/helper.c b/target-arm/helper.c index d43d208..961dd37 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -776,7 +776,14 @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) static uint64_t ccsidr_read(CPUARMState *env, const ARMCPRegInfo *ri) { ARMCPU *cpu = arm_env_get_cpu(env); - return cpu->ccsidr[env->cp15.c0_cssel]; + + /* Acquire the CSSELR index from the bank corresponding to the CCSIDR + * bank + */ + uint32_t index = A32_BANKED_REG_GET(env, csselr, + ri->secure & ARM_CP_SECSTATE_S); + + return cpu->ccsidr[index]; } static void csselr_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -903,8 +910,9 @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .access = PL1_R, .readfn = ccsidr_read, .type = ARM_CP_NO_MIGRATE }, { .name = "CSSELR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 2, .opc2 = 0, - .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.c0_cssel), - .writefn = csselr_write, .resetvalue = 0 }, + .access = PL1_RW, .writefn = csselr_write, .resetvalue = 0, + .bank_fieldoffsets = { offsetof(CPUARMState, cp15.csselr_s), + offsetof(CPUARMState, cp15.csselr_ns) } }, /* Auxiliary ID register: this actually has an IMPDEF value but for now * just RAZ for all cores: */ |