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target-arm: Split AArch64 cases out of ats_write() 

Instead of simply reusing ats_write() as the handler for both AArch32
and AArch64 address translation operations, use a different function
for each with the common code in a third function. This is necessary
because the semantics for selecting the right translation regime are
different; we are only getting away with sharing currently because
we don't support EL2 and only support EL3 in AArch32.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Peter Maydell 2015-02-05 13:37:24 +00:00
parent 0dfef7b58f
commit 060e8a48cb
1 changed files with 26 additions and 7 deletions
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33
target-arm/helper.c
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@ -1458,13 +1458,13 @@ static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri)
return CP_ACCESS_OK;
}
static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
static uint64_t do_ats_write(CPUARMState *env, uint64_t value,
int access_type, int is_user)
{
hwaddr phys_addr;
target_ulong page_size;
int prot;
int ret, is_user = ri->opc2 & 2;
int access_type = ri->opc2 & 1;
int ret;
uint64_t par64;
ret = get_phys_addr(env, value, access_type, is_user,
@ -1504,9 +1504,28 @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
((ret & 0xf) << 1) | 1;
}
}
return par64;
}
static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value)
{
int is_user = ri->opc2 & 2;
int access_type = ri->opc2 & 1;
uint64_t par64;
par64 = do_ats_write(env, value, access_type, is_user);
A32_BANKED_CURRENT_REG_SET(env, par, par64);
}
static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri,
uint64_t value)
{
int is_user = ri->opc2 & 2;
int access_type = ri->opc2 & 1;
env->cp15.par_el[1] = do_ats_write(env, value, access_type, is_user);
}
#endif
static const ARMCPRegInfo vapa_cp_reginfo[] = {
@ -2280,16 +2299,16 @@ static const ARMCPRegInfo v8_cp_reginfo[] = {
/* 64 bit address translation operations */
{ .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 0,
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write },
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 },
{ .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 1,
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write },
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 },
{ .name = "AT_S1E0R", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 2,
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write },
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 },
{ .name = "AT_S1E0W", .state = ARM_CP_STATE_AA64,
.opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 3,
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write },
.access = PL1_W, .type = ARM_CP_NO_RAW, .writefn = ats_write64 },
#endif
/* TLB invalidate last level of translation table walk */
{ .name = "TLBIMVALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5,