diff options
| author | Thomas Huth <thuth@linux.vnet.ibm.com> | 2015-02-12 18:09:29 +0100 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2015-02-18 09:37:14 +0100 |
| commit | 9d77309c9fedca33525cae820b9eff6f35c795f4 (patch) | |
| tree | 478cceecd81a9bb7dd00f6e00f971003732f48c6 /target-s390x/mmu_helper.c | |
| parent | b4ecbf8071022a2042624baaff78cab2bf7e94af (diff) | |
s390x/mmu: Clean up mmu_translate_asc()
We can get rid of the switch(asc) in mmu_translate_asc() by simply
selecting the right control register ASCE in the mmu_translate()
function already.
This patch is based on an original patch/idea by Ralf Hoppe.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'target-s390x/mmu_helper.c')
| -rw-r--r-- | target-s390x/mmu_helper.c | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/target-s390x/mmu_helper.c b/target-s390x/mmu_helper.c index c183958787..32a51f32fb 100644 --- a/target-s390x/mmu_helper.c +++ b/target-s390x/mmu_helper.c @@ -214,29 +214,13 @@ static int mmu_translate_region(CPUS390XState *env, target_ulong vaddr, raddr, flags, rw, exc); } -static int mmu_translate_asc(CPUS390XState *env, target_ulong vaddr, - uint64_t asc, target_ulong *raddr, int *flags, - int rw, bool exc) +static int mmu_translate_asce(CPUS390XState *env, target_ulong vaddr, + uint64_t asc, uint64_t asce, target_ulong *raddr, + int *flags, int rw, bool exc) { - uint64_t asce = 0; int level; int r; - switch (asc) { - case PSW_ASC_PRIMARY: - PTE_DPRINTF("%s: asc=primary\n", __func__); - asce = env->cregs[1]; - break; - case PSW_ASC_SECONDARY: - PTE_DPRINTF("%s: asc=secondary\n", __func__); - asce = env->cregs[7]; - break; - case PSW_ASC_HOME: - PTE_DPRINTF("%s: asc=home\n", __func__); - asce = env->cregs[13]; - break; - } - if (asce & _ASCE_REAL_SPACE) { /* direct mapping */ *raddr = vaddr; @@ -326,21 +310,28 @@ int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc, switch (asc) { case PSW_ASC_PRIMARY: + PTE_DPRINTF("%s: asc=primary\n", __func__); + r = mmu_translate_asce(env, vaddr, asc, env->cregs[1], raddr, flags, + rw, exc); + break; case PSW_ASC_HOME: - r = mmu_translate_asc(env, vaddr, asc, raddr, flags, rw, exc); + PTE_DPRINTF("%s: asc=home\n", __func__); + r = mmu_translate_asce(env, vaddr, asc, env->cregs[13], raddr, flags, + rw, exc); break; case PSW_ASC_SECONDARY: + PTE_DPRINTF("%s: asc=secondary\n", __func__); /* * Instruction: Primary * Data: Secondary */ if (rw == 2) { - r = mmu_translate_asc(env, vaddr, PSW_ASC_PRIMARY, raddr, flags, - rw, exc); + r = mmu_translate_asce(env, vaddr, PSW_ASC_PRIMARY, env->cregs[1], + raddr, flags, rw, exc); *flags &= ~(PAGE_READ | PAGE_WRITE); } else { - r = mmu_translate_asc(env, vaddr, PSW_ASC_SECONDARY, raddr, flags, - rw, exc); + r = mmu_translate_asce(env, vaddr, PSW_ASC_SECONDARY, env->cregs[7], + raddr, flags, rw, exc); *flags &= ~(PAGE_EXEC); } break; |