target-ppc: Disentangle get_segment()
The poorly named get_segment() function handles most of the address translation logic for hash-based MMUs. It has many ugly conditionals on whether the MMU is 32-bit or 64-bit. This patch splits the function into 32 and 64-bit versions, using the switch on mmu_type that's already in the caller (get_physical_address()) to select the right one. Most of the original function remains in mmu_helper.c to support the 6xx software loaded TLB implementations (cleaning those up is a project for another day). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
parent
c69b6151e7
commit
0480884f14
@ -85,8 +85,8 @@ static int pte_check_hash32(mmu_ctx_t *ctx, target_ulong pte0,
|
||||
}
|
||||
|
||||
/* PTE table lookup */
|
||||
int find_pte32(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits)
|
||||
static int find_pte32(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits)
|
||||
{
|
||||
hwaddr pteg_off;
|
||||
target_ulong pte0, pte1;
|
||||
@ -157,3 +157,148 @@ int find_pte32(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type)
|
||||
{
|
||||
hwaddr hash;
|
||||
target_ulong vsid;
|
||||
int ds, pr, target_page_bits;
|
||||
int ret, ret2;
|
||||
target_ulong sr, pgidx;
|
||||
|
||||
pr = msr_pr;
|
||||
ctx->eaddr = eaddr;
|
||||
|
||||
sr = env->sr[eaddr >> 28];
|
||||
ctx->key = (((sr & 0x20000000) && (pr != 0)) ||
|
||||
((sr & 0x40000000) && (pr == 0))) ? 1 : 0;
|
||||
ds = sr & 0x80000000 ? 1 : 0;
|
||||
ctx->nx = sr & 0x10000000 ? 1 : 0;
|
||||
vsid = sr & 0x00FFFFFF;
|
||||
target_page_bits = TARGET_PAGE_BITS;
|
||||
LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip="
|
||||
TARGET_FMT_lx " lr=" TARGET_FMT_lx
|
||||
" ir=%d dr=%d pr=%d %d t=%d\n",
|
||||
eaddr, (int)(eaddr >> 28), sr, env->nip, env->lr, (int)msr_ir,
|
||||
(int)msr_dr, pr != 0 ? 1 : 0, rw, type);
|
||||
pgidx = (eaddr & ~SEGMENT_MASK_256M) >> target_page_bits;
|
||||
hash = vsid ^ pgidx;
|
||||
ctx->ptem = (vsid << 7) | (pgidx >> 10);
|
||||
|
||||
LOG_MMU("pte segment: key=%d ds %d nx %d vsid " TARGET_FMT_lx "\n",
|
||||
ctx->key, ds, ctx->nx, vsid);
|
||||
ret = -1;
|
||||
if (!ds) {
|
||||
/* Check if instruction fetch is allowed, if needed */
|
||||
if (type != ACCESS_CODE || ctx->nx == 0) {
|
||||
/* Page address translation */
|
||||
LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
|
||||
" hash " TARGET_FMT_plx "\n",
|
||||
env->htab_base, env->htab_mask, hash);
|
||||
ctx->hash[0] = hash;
|
||||
ctx->hash[1] = ~hash;
|
||||
|
||||
/* Initialize real address with an invalid value */
|
||||
ctx->raddr = (hwaddr)-1ULL;
|
||||
LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n",
|
||||
env->htab_base, env->htab_mask, vsid, ctx->ptem,
|
||||
ctx->hash[0]);
|
||||
/* Primary table lookup */
|
||||
ret = find_pte32(env, ctx, 0, rw, type, target_page_bits);
|
||||
if (ret < 0) {
|
||||
/* Secondary table lookup */
|
||||
LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n", env->htab_base,
|
||||
env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
|
||||
ret2 = find_pte32(env, ctx, 1, rw, type,
|
||||
target_page_bits);
|
||||
if (ret2 != -1) {
|
||||
ret = ret2;
|
||||
}
|
||||
}
|
||||
#if defined(DUMP_PAGE_TABLES)
|
||||
if (qemu_log_enabled()) {
|
||||
hwaddr curaddr;
|
||||
uint32_t a0, a1, a2, a3;
|
||||
|
||||
qemu_log("Page table: " TARGET_FMT_plx " len " TARGET_FMT_plx
|
||||
"\n", sdr, mask + 0x80);
|
||||
for (curaddr = sdr; curaddr < (sdr + mask + 0x80);
|
||||
curaddr += 16) {
|
||||
a0 = ldl_phys(curaddr);
|
||||
a1 = ldl_phys(curaddr + 4);
|
||||
a2 = ldl_phys(curaddr + 8);
|
||||
a3 = ldl_phys(curaddr + 12);
|
||||
if (a0 != 0 || a1 != 0 || a2 != 0 || a3 != 0) {
|
||||
qemu_log(TARGET_FMT_plx ": %08x %08x %08x %08x\n",
|
||||
curaddr, a0, a1, a2, a3);
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
} else {
|
||||
LOG_MMU("No access allowed\n");
|
||||
ret = -3;
|
||||
}
|
||||
} else {
|
||||
target_ulong sr;
|
||||
|
||||
LOG_MMU("direct store...\n");
|
||||
/* Direct-store segment : absolutely *BUGGY* for now */
|
||||
|
||||
/* Direct-store implies a 32-bit MMU.
|
||||
* Check the Segment Register's bus unit ID (BUID).
|
||||
*/
|
||||
sr = env->sr[eaddr >> 28];
|
||||
if ((sr & 0x1FF00000) >> 20 == 0x07f) {
|
||||
/* Memory-forced I/O controller interface access */
|
||||
/* If T=1 and BUID=x'07F', the 601 performs a memory access
|
||||
* to SR[28-31] LA[4-31], bypassing all protection mechanisms.
|
||||
*/
|
||||
ctx->raddr = ((sr & 0xF) << 28) | (eaddr & 0x0FFFFFFF);
|
||||
ctx->prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
|
||||
return 0;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case ACCESS_INT:
|
||||
/* Integer load/store : only access allowed */
|
||||
break;
|
||||
case ACCESS_CODE:
|
||||
/* No code fetch is allowed in direct-store areas */
|
||||
return -4;
|
||||
case ACCESS_FLOAT:
|
||||
/* Floating point load/store */
|
||||
return -4;
|
||||
case ACCESS_RES:
|
||||
/* lwarx, ldarx or srwcx. */
|
||||
return -4;
|
||||
case ACCESS_CACHE:
|
||||
/* dcba, dcbt, dcbtst, dcbf, dcbi, dcbst, dcbz, or icbi */
|
||||
/* Should make the instruction do no-op.
|
||||
* As it already do no-op, it's quite easy :-)
|
||||
*/
|
||||
ctx->raddr = eaddr;
|
||||
return 0;
|
||||
case ACCESS_EXT:
|
||||
/* eciwx or ecowx */
|
||||
return -4;
|
||||
default:
|
||||
qemu_log("ERROR: instruction should not need "
|
||||
"address translation\n");
|
||||
return -4;
|
||||
}
|
||||
if ((rw == 1 || ctx->key != 1) && (rw == 0 || ctx->key != 0)) {
|
||||
ctx->raddr = eaddr;
|
||||
ret = 2;
|
||||
} else {
|
||||
ret = -2;
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
@ -4,8 +4,8 @@
|
||||
#ifndef CONFIG_USER_ONLY
|
||||
|
||||
int pte32_is_valid(target_ulong pte0);
|
||||
int find_pte32(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits);
|
||||
int get_segment32(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type);
|
||||
|
||||
#endif /* CONFIG_USER_ONLY */
|
||||
|
||||
|
@ -44,7 +44,7 @@
|
||||
* SLB handling
|
||||
*/
|
||||
|
||||
ppc_slb_t *slb_lookup(CPUPPCState *env, target_ulong eaddr)
|
||||
static ppc_slb_t *slb_lookup(CPUPPCState *env, target_ulong eaddr)
|
||||
{
|
||||
uint64_t esid_256M, esid_1T;
|
||||
int n;
|
||||
@ -276,8 +276,8 @@ static int pte64_check(mmu_ctx_t *ctx, target_ulong pte0,
|
||||
}
|
||||
|
||||
/* PTE table lookup */
|
||||
int find_pte64(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits)
|
||||
static int find_pte64(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits)
|
||||
{
|
||||
hwaddr pteg_off;
|
||||
target_ulong pte0, pte1;
|
||||
@ -349,3 +349,89 @@ int find_pte64(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type)
|
||||
{
|
||||
hwaddr hash;
|
||||
target_ulong vsid;
|
||||
int pr, target_page_bits;
|
||||
int ret, ret2;
|
||||
|
||||
pr = msr_pr;
|
||||
ctx->eaddr = eaddr;
|
||||
ppc_slb_t *slb;
|
||||
target_ulong pageaddr;
|
||||
int segment_bits;
|
||||
|
||||
LOG_MMU("Check SLBs\n");
|
||||
slb = slb_lookup(env, eaddr);
|
||||
if (!slb) {
|
||||
return -5;
|
||||
}
|
||||
|
||||
if (slb->vsid & SLB_VSID_B) {
|
||||
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT_1T;
|
||||
segment_bits = 40;
|
||||
} else {
|
||||
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT;
|
||||
segment_bits = 28;
|
||||
}
|
||||
|
||||
target_page_bits = (slb->vsid & SLB_VSID_L)
|
||||
? TARGET_PAGE_BITS_16M : TARGET_PAGE_BITS;
|
||||
ctx->key = !!(pr ? (slb->vsid & SLB_VSID_KP)
|
||||
: (slb->vsid & SLB_VSID_KS));
|
||||
ctx->nx = !!(slb->vsid & SLB_VSID_N);
|
||||
|
||||
pageaddr = eaddr & ((1ULL << segment_bits)
|
||||
- (1ULL << target_page_bits));
|
||||
if (slb->vsid & SLB_VSID_B) {
|
||||
hash = vsid ^ (vsid << 25) ^ (pageaddr >> target_page_bits);
|
||||
} else {
|
||||
hash = vsid ^ (pageaddr >> target_page_bits);
|
||||
}
|
||||
/* Only 5 bits of the page index are used in the AVPN */
|
||||
ctx->ptem = (slb->vsid & SLB_VSID_PTEM) |
|
||||
((pageaddr >> 16) & ((1ULL << segment_bits) - 0x80));
|
||||
|
||||
LOG_MMU("pte segment: key=%d nx %d vsid " TARGET_FMT_lx "\n",
|
||||
ctx->key, ctx->nx, vsid);
|
||||
ret = -1;
|
||||
|
||||
/* Check if instruction fetch is allowed, if needed */
|
||||
if (type != ACCESS_CODE || ctx->nx == 0) {
|
||||
/* Page address translation */
|
||||
LOG_MMU("htab_base " TARGET_FMT_plx " htab_mask " TARGET_FMT_plx
|
||||
" hash " TARGET_FMT_plx "\n",
|
||||
env->htab_base, env->htab_mask, hash);
|
||||
ctx->hash[0] = hash;
|
||||
ctx->hash[1] = ~hash;
|
||||
|
||||
/* Initialize real address with an invalid value */
|
||||
ctx->raddr = (hwaddr)-1ULL;
|
||||
LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n",
|
||||
env->htab_base, env->htab_mask, vsid, ctx->ptem,
|
||||
ctx->hash[0]);
|
||||
/* Primary table lookup */
|
||||
ret = find_pte64(env, ctx, 0, rw, type, target_page_bits);
|
||||
if (ret < 0) {
|
||||
/* Secondary table lookup */
|
||||
LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n", env->htab_base,
|
||||
env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
|
||||
ret2 = find_pte64(env, ctx, 1, rw, type, target_page_bits);
|
||||
if (ret2 != -1) {
|
||||
ret = ret2;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
LOG_MMU("No access allowed\n");
|
||||
ret = -3;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
@ -4,11 +4,10 @@
|
||||
#ifndef CONFIG_USER_ONLY
|
||||
|
||||
#ifdef TARGET_PPC64
|
||||
ppc_slb_t *slb_lookup(CPUPPCState *env, target_ulong eaddr);
|
||||
void dump_slb(FILE *f, fprintf_function cpu_fprintf, CPUPPCState *env);
|
||||
int ppc_store_slb (CPUPPCState *env, target_ulong rb, target_ulong rs);
|
||||
int find_pte64(CPUPPCState *env, mmu_ctx_t *ctx, int h,
|
||||
int rw, int type, int target_page_bits);
|
||||
int get_segment64(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type);
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_USER_ONLY */
|
||||
|
@ -507,87 +507,35 @@ hwaddr get_pteg_offset(CPUPPCState *env, hwaddr hash, int pte_size)
|
||||
return (hash * pte_size * 8) & env->htab_mask;
|
||||
}
|
||||
|
||||
static inline int find_pte(CPUPPCState *env, mmu_ctx_t *ctx, int h, int rw,
|
||||
int type, int target_page_bits)
|
||||
{
|
||||
#if defined(TARGET_PPC64)
|
||||
if (env->mmu_model & POWERPC_MMU_64) {
|
||||
return find_pte64(env, ctx, h, rw, type, target_page_bits);
|
||||
}
|
||||
#endif
|
||||
|
||||
return find_pte32(env, ctx, h, rw, type, target_page_bits);
|
||||
}
|
||||
|
||||
/* Perform segment based translation */
|
||||
static inline int get_segment(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type)
|
||||
static inline int get_segment_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
target_ulong eaddr, int rw, int type)
|
||||
{
|
||||
hwaddr hash;
|
||||
target_ulong vsid;
|
||||
int ds, pr, target_page_bits;
|
||||
int ret, ret2;
|
||||
int ret;
|
||||
target_ulong sr, pgidx;
|
||||
|
||||
pr = msr_pr;
|
||||
ctx->eaddr = eaddr;
|
||||
#if defined(TARGET_PPC64)
|
||||
if (env->mmu_model & POWERPC_MMU_64) {
|
||||
ppc_slb_t *slb;
|
||||
target_ulong pageaddr;
|
||||
int segment_bits;
|
||||
|
||||
LOG_MMU("Check SLBs\n");
|
||||
slb = slb_lookup(env, eaddr);
|
||||
if (!slb) {
|
||||
return -5;
|
||||
}
|
||||
sr = env->sr[eaddr >> 28];
|
||||
ctx->key = (((sr & 0x20000000) && (pr != 0)) ||
|
||||
((sr & 0x40000000) && (pr == 0))) ? 1 : 0;
|
||||
ds = sr & 0x80000000 ? 1 : 0;
|
||||
ctx->nx = sr & 0x10000000 ? 1 : 0;
|
||||
vsid = sr & 0x00FFFFFF;
|
||||
target_page_bits = TARGET_PAGE_BITS;
|
||||
LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip="
|
||||
TARGET_FMT_lx " lr=" TARGET_FMT_lx
|
||||
" ir=%d dr=%d pr=%d %d t=%d\n",
|
||||
eaddr, (int)(eaddr >> 28), sr, env->nip, env->lr, (int)msr_ir,
|
||||
(int)msr_dr, pr != 0 ? 1 : 0, rw, type);
|
||||
pgidx = (eaddr & ~SEGMENT_MASK_256M) >> target_page_bits;
|
||||
hash = vsid ^ pgidx;
|
||||
ctx->ptem = (vsid << 7) | (pgidx >> 10);
|
||||
|
||||
if (slb->vsid & SLB_VSID_B) {
|
||||
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT_1T;
|
||||
segment_bits = 40;
|
||||
} else {
|
||||
vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT;
|
||||
segment_bits = 28;
|
||||
}
|
||||
|
||||
target_page_bits = (slb->vsid & SLB_VSID_L)
|
||||
? TARGET_PAGE_BITS_16M : TARGET_PAGE_BITS;
|
||||
ctx->key = !!(pr ? (slb->vsid & SLB_VSID_KP)
|
||||
: (slb->vsid & SLB_VSID_KS));
|
||||
ds = 0;
|
||||
ctx->nx = !!(slb->vsid & SLB_VSID_N);
|
||||
|
||||
pageaddr = eaddr & ((1ULL << segment_bits)
|
||||
- (1ULL << target_page_bits));
|
||||
if (slb->vsid & SLB_VSID_B) {
|
||||
hash = vsid ^ (vsid << 25) ^ (pageaddr >> target_page_bits);
|
||||
} else {
|
||||
hash = vsid ^ (pageaddr >> target_page_bits);
|
||||
}
|
||||
/* Only 5 bits of the page index are used in the AVPN */
|
||||
ctx->ptem = (slb->vsid & SLB_VSID_PTEM) |
|
||||
((pageaddr >> 16) & ((1ULL << segment_bits) - 0x80));
|
||||
} else
|
||||
#endif /* defined(TARGET_PPC64) */
|
||||
{
|
||||
target_ulong sr, pgidx;
|
||||
|
||||
sr = env->sr[eaddr >> 28];
|
||||
ctx->key = (((sr & 0x20000000) && (pr != 0)) ||
|
||||
((sr & 0x40000000) && (pr == 0))) ? 1 : 0;
|
||||
ds = sr & 0x80000000 ? 1 : 0;
|
||||
ctx->nx = sr & 0x10000000 ? 1 : 0;
|
||||
vsid = sr & 0x00FFFFFF;
|
||||
target_page_bits = TARGET_PAGE_BITS;
|
||||
LOG_MMU("Check segment v=" TARGET_FMT_lx " %d " TARGET_FMT_lx " nip="
|
||||
TARGET_FMT_lx " lr=" TARGET_FMT_lx
|
||||
" ir=%d dr=%d pr=%d %d t=%d\n",
|
||||
eaddr, (int)(eaddr >> 28), sr, env->nip, env->lr, (int)msr_ir,
|
||||
(int)msr_dr, pr != 0 ? 1 : 0, rw, type);
|
||||
pgidx = (eaddr & ~SEGMENT_MASK_256M) >> target_page_bits;
|
||||
hash = vsid ^ pgidx;
|
||||
ctx->ptem = (vsid << 7) | (pgidx >> 10);
|
||||
}
|
||||
LOG_MMU("pte segment: key=%d ds %d nx %d vsid " TARGET_FMT_lx "\n",
|
||||
ctx->key, ds, ctx->nx, vsid);
|
||||
ret = -1;
|
||||
@ -603,31 +551,8 @@ static inline int get_segment(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
|
||||
/* Initialize real address with an invalid value */
|
||||
ctx->raddr = (hwaddr)-1ULL;
|
||||
if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_6xx ||
|
||||
env->mmu_model == POWERPC_MMU_SOFT_74xx)) {
|
||||
/* Software TLB search */
|
||||
ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
|
||||
} else {
|
||||
LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n",
|
||||
env->htab_base, env->htab_mask, vsid, ctx->ptem,
|
||||
ctx->hash[0]);
|
||||
/* Primary table lookup */
|
||||
ret = find_pte(env, ctx, 0, rw, type, target_page_bits);
|
||||
if (ret < 0) {
|
||||
/* Secondary table lookup */
|
||||
LOG_MMU("1 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx
|
||||
" vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx
|
||||
" hash=" TARGET_FMT_plx "\n", env->htab_base,
|
||||
env->htab_mask, vsid, ctx->ptem, ctx->hash[1]);
|
||||
ret2 = find_pte(env, ctx, 1, rw, type,
|
||||
target_page_bits);
|
||||
if (ret2 != -1) {
|
||||
ret = ret2;
|
||||
}
|
||||
}
|
||||
}
|
||||
/* Software TLB search */
|
||||
ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
|
||||
#if defined(DUMP_PAGE_TABLES)
|
||||
if (qemu_log_enabled()) {
|
||||
hwaddr curaddr;
|
||||
@ -1415,22 +1340,36 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx,
|
||||
switch (env->mmu_model) {
|
||||
case POWERPC_MMU_32B:
|
||||
case POWERPC_MMU_601:
|
||||
/* Try to find a BAT */
|
||||
if (env->nb_BATs != 0) {
|
||||
ret = get_bat(env, ctx, eaddr, rw, access_type);
|
||||
}
|
||||
if (ret < 0) {
|
||||
/* We didn't match any BAT entry or don't have BATs */
|
||||
ret = get_segment32(env, ctx, eaddr, rw, access_type);
|
||||
}
|
||||
break;
|
||||
|
||||
case POWERPC_MMU_SOFT_6xx:
|
||||
case POWERPC_MMU_SOFT_74xx:
|
||||
/* Try to find a BAT */
|
||||
if (env->nb_BATs != 0) {
|
||||
ret = get_bat(env, ctx, eaddr, rw, access_type);
|
||||
}
|
||||
if (ret < 0) {
|
||||
/* We didn't match any BAT entry or don't have BATs */
|
||||
ret = get_segment_6xx_tlb(env, ctx, eaddr, rw, access_type);
|
||||
}
|
||||
break;
|
||||
|
||||
#if defined(TARGET_PPC64)
|
||||
case POWERPC_MMU_64B:
|
||||
case POWERPC_MMU_2_06:
|
||||
case POWERPC_MMU_2_06d:
|
||||
#endif
|
||||
if (ret < 0) {
|
||||
/* We didn't match any BAT entry or don't have BATs */
|
||||
ret = get_segment(env, ctx, eaddr, rw, access_type);
|
||||
}
|
||||
ret = get_segment64(env, ctx, eaddr, rw, access_type);
|
||||
break;
|
||||
#endif
|
||||
|
||||
case POWERPC_MMU_SOFT_4xx:
|
||||
case POWERPC_MMU_SOFT_4xx_Z:
|
||||
ret = mmu40x_get_physical_address(env, ctx, eaddr,
|
||||
|
Loading…
Reference in New Issue
Block a user