ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

target-sparc: implement UA2005 ASI_MMU (0x21) 

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
This commit is contained in:
Artyom Tarasenko 2016-04-18 11:52:43 +02:00
parent d00a233443
commit 7dd8c0760e
No known key found for this signature in database
GPG Key ID: 3360C3F7411A125F
1 changed files with 31 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
target/sparc/ldst_helper.c
View File

@ -1396,6 +1396,18 @@ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
ret = env->scratch[i];
break;
}
case ASI_MMU: /* UA2005 Context ID registers */
switch ((addr >> 3) & 0x3) {
case 1:
ret = env->dmmu.mmu_primary_context;
break;
case 2:
ret = env->dmmu.mmu_secondary_context;
break;
default:
cpu_unassigned_access(cs, addr, true, false, 1, size);
}
break;
case ASI_DCACHE_DATA: /* D-cache data */
case ASI_DCACHE_TAG: /* D-cache tag access */
case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
@ -1714,6 +1726,25 @@ void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
env->scratch[i] = val;
return;
}
case ASI_MMU: /* UA2005 Context ID registers */
{
switch ((addr >> 3) & 0x3) {
case 1:
env->dmmu.mmu_primary_context = val;
env->immu.mmu_primary_context = val;
tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_IDX, MMU_KERNEL_IDX, -1);
break;
case 2:
env->dmmu.mmu_secondary_context = val;
env->immu.mmu_secondary_context = val;
tlb_flush_by_mmuidx(CPU(cpu), MMU_USER_SECONDARY_IDX,
MMU_KERNEL_SECONDARY_IDX, -1);
break;
default:
cpu_unassigned_access(cs, addr, true, false, 1, size);
}
}
return;
case ASI_QUEUE: /* UA2005 CPU mondo queue */
case ASI_DCACHE_DATA: /* D-cache data */
case ASI_DCACHE_TAG: /* D-cache tag access */