diff options
Diffstat (limited to 'target-ppc/helper.c')
| -rw-r--r-- | target-ppc/helper.c | 67 |
1 files changed, 19 insertions, 48 deletions
diff --git a/target-ppc/helper.c b/target-ppc/helper.c index 0efa2a8c3a..ae8001cd35 100644 --- a/target-ppc/helper.c +++ b/target-ppc/helper.c @@ -661,29 +661,15 @@ static inline int _find_pte(CPUState *env, mmu_ctx_t *ctx, int is_64b, int h, return ret; } -static inline int find_pte32(CPUState *env, mmu_ctx_t *ctx, int h, int rw, - int type, int target_page_bits) -{ - return _find_pte(env, ctx, 0, h, rw, type, target_page_bits); -} - -#if defined(TARGET_PPC64) -static inline int find_pte64(CPUState *env, mmu_ctx_t *ctx, int h, int rw, - int type, int target_page_bits) -{ - return _find_pte(env, ctx, 1, h, rw, type, target_page_bits); -} -#endif - static inline int find_pte(CPUState *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); + return _find_pte(env, ctx, 1, h, rw, type, target_page_bits); #endif - return find_pte32(env, ctx, h, rw, type, target_page_bits); + return _find_pte(env, ctx, 0, h, rw, type, target_page_bits); } #if defined(TARGET_PPC64) @@ -803,14 +789,16 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, target_ulong eaddr, int rw, int type) { target_phys_addr_t hash; - target_ulong sr, vsid, pgidx, page_mask; + target_ulong vsid; int ds, pr, target_page_bits; int ret, ret2; pr = msr_pr; + ctx->eaddr = eaddr; #if defined(TARGET_PPC64) if (env->mmu_model & POWERPC_MMU_64) { ppc_slb_t *slb; + target_ulong pageaddr; LOG_MMU("Check SLBs\n"); slb = slb_lookup(env, eaddr); @@ -819,19 +807,24 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, } vsid = (slb->vsid & SLB_VSID_VSID) >> SLB_VSID_SHIFT; - page_mask = ~SEGMENT_MASK_256M; 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); - ctx->eaddr = eaddr; + + pageaddr = eaddr & ((1ULL << 28) - (1ULL << target_page_bits)); + /* XXX: this is false for 1 TB segments */ + 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) & 0x0F80); } else #endif /* defined(TARGET_PPC64) */ { + target_ulong sr, pgidx; + sr = env->sr[eaddr >> 28]; - page_mask = 0x0FFFFFFF; ctx->key = (((sr & 0x20000000) && (pr != 0)) || ((sr & 0x40000000) && (pr == 0))) ? 1 : 0; ds = sr & 0x80000000 ? 1 : 0; @@ -843,6 +836,9 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, " 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); @@ -851,36 +847,12 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, /* Check if instruction fetch is allowed, if needed */ if (type != ACCESS_CODE || ctx->nx == 0) { /* Page address translation */ - pgidx = (eaddr & page_mask) >> target_page_bits; -#if defined(TARGET_PPC64) - if (env->mmu_model & POWERPC_MMU_64) { - /* XXX: this is false for 1 TB segments */ - hash = vsid ^ pgidx; - } else -#endif - { - hash = vsid ^ pgidx; - } 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; -#if defined(TARGET_PPC64) - if (env->mmu_model & POWERPC_MMU_64) { - /* Only 5 bits of the page index are used in the AVPN */ - if (target_page_bits > 23) { - ctx->ptem = (vsid << 12) | - ((pgidx << (target_page_bits - 16)) & 0xF80); - } else { - ctx->ptem = (vsid << 12) | ((pgidx >> 4) & 0x0F80); - } - } else -#endif - { - ctx->ptem = (vsid << 7) | (pgidx >> 10); - } /* Initialize real address with an invalid value */ ctx->raddr = (target_phys_addr_t)-1ULL; if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_6xx || @@ -889,9 +861,9 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type); } else { LOG_MMU("0 htab=" TARGET_FMT_plx "/" TARGET_FMT_plx - " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx + " vsid=" TARGET_FMT_lx " ptem=" TARGET_FMT_lx " hash=" TARGET_FMT_plx "\n", - env->htab_base, env->htab_mask, vsid, pgidx, + 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); @@ -902,8 +874,7 @@ static inline int get_segment(CPUState *env, mmu_ctx_t *ctx, " vsid=" TARGET_FMT_lx " api=" TARGET_FMT_lx " hash=" TARGET_FMT_plx " pg_addr=" TARGET_FMT_plx "\n", env->htab_base, - env->htab_mask, vsid, pgidx, hash, - ctx->hash[1]); + env->htab_mask, vsid, ctx->ptem, ctx->hash[1]); ret2 = find_pte(env, ctx, 1, rw, type, target_page_bits); if (ret2 != -1) |