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target/ppc: Eliminate goto in mmubooke_check_tlb()

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Move out checking PID registers into a separate function which makes
mmubooke_check_tlb() simpler and avoids using goto.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <bd84d5f38af0ba2983ccd5c07635db49267c828f.1685448535.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
BALATON Zoltan 2023-05-30 15:28:13 +02:00 • committed by Daniel Henrique Barboza
parent 2b23daa8eb
commit a5436bc6ed
1 changed files with 26 additions and 24 deletions
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48
target/ppc/mmu_common.c
View file

@ -601,37 +601,39 @@ static int mmu40x_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
return ret; return ret;
} }
static bool mmubooke_check_pid(CPUPPCState *env, ppcemb_tlb_t *tlb,
hwaddr *raddr, target_ulong addr, int i)
{
if (ppcemb_tlb_check(env, tlb, raddr, addr, env->spr[SPR_BOOKE_PID], i)) {
if (!env->nb_pids) {
/* Extend the physical address to 36 bits */
*raddr |= (uint64_t)(tlb->RPN & 0xF) << 32;
}
return true;
} else if (!env->nb_pids) {
return false;
}
if (env->spr[SPR_BOOKE_PID1] &&
ppcemb_tlb_check(env, tlb, raddr, addr, env->spr[SPR_BOOKE_PID1], i)) {
return true;
}
if (env->spr[SPR_BOOKE_PID2] &&
ppcemb_tlb_check(env, tlb, raddr, addr, env->spr[SPR_BOOKE_PID2], i)) {
return true;
}
return false;
}
static int mmubooke_check_tlb(CPUPPCState *env, ppcemb_tlb_t *tlb, static int mmubooke_check_tlb(CPUPPCState *env, ppcemb_tlb_t *tlb,
hwaddr *raddr, int *prot, target_ulong address, hwaddr *raddr, int *prot, target_ulong address,
MMUAccessType access_type, int i) MMUAccessType access_type, int i)
{ {
int prot2; int prot2;
if (ppcemb_tlb_check(env, tlb, raddr, address, if (!mmubooke_check_pid(env, tlb, raddr, address, i)) {
env->spr[SPR_BOOKE_PID], i)) {
if (!env->nb_pids) {
/* Extend the physical address to 36 bits */
*raddr |= (uint64_t)(tlb->RPN & 0xF) << 32;
}
goto found_tlb;
}
if (env->spr[SPR_BOOKE_PID1] &&
ppcemb_tlb_check(env, tlb, raddr, address,
env->spr[SPR_BOOKE_PID1], i)) {
goto found_tlb;
}
if (env->spr[SPR_BOOKE_PID2] &&
ppcemb_tlb_check(env, tlb, raddr, address,
env->spr[SPR_BOOKE_PID2], i)) {
goto found_tlb;
}
qemu_log_mask(CPU_LOG_MMU, "%s: TLB entry not found\n", __func__); qemu_log_mask(CPU_LOG_MMU, "%s: TLB entry not found\n", __func__);
return -1; return -1;
}
found_tlb:
if (FIELD_EX64(env->msr, MSR, PR)) { if (FIELD_EX64(env->msr, MSR, PR)) {
prot2 = tlb->prot & 0xF; prot2 = tlb->prot & 0xF;