diff options
Diffstat (limited to 'target-ppc')
| -rw-r--r-- | target-ppc/Makefile.objs | 2 | ||||
| -rw-r--r-- | target-ppc/mmu_helper.c | 882 | ||||
| -rw-r--r-- | target-ppc/op_helper.c | 854 |
3 files changed, 884 insertions, 854 deletions
diff --git a/target-ppc/Makefile.objs b/target-ppc/Makefile.objs index 5d63400ce2..0f89c2c53a 100644 --- a/target-ppc/Makefile.objs +++ b/target-ppc/Makefile.objs @@ -5,5 +5,7 @@ obj-y += op_helper.o helper.o obj-y += excp_helper.o obj-y += fpu_helper.o obj-y += int_helper.o +obj-y += mmu_helper.o +$(obj)/mmu_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS) $(obj)/op_helper.o: QEMU_CFLAGS += $(HELPER_CFLAGS) diff --git a/target-ppc/mmu_helper.c b/target-ppc/mmu_helper.c new file mode 100644 index 0000000000..81800b618f --- /dev/null +++ b/target-ppc/mmu_helper.c @@ -0,0 +1,882 @@ +/* + * PowerPC MMU, TLB, SLB and BAT emulation helpers for QEMU. + * + * Copyright (c) 2003-2007 Jocelyn Mayer + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ +#include "cpu.h" +#include "dyngen-exec.h" +#include "helper.h" + +//#define DEBUG_SOFTWARE_TLB + +#ifdef DEBUG_SOFTWARE_TLB +# define LOG_SWTLB(...) qemu_log(__VA_ARGS__) +#else +# define LOG_SWTLB(...) do { } while (0) +#endif + +/*****************************************************************************/ +/* SPR accesses */ + +#if !defined(CONFIG_USER_ONLY) +void helper_store_ibatu(uint32_t nr, target_ulong val) +{ + ppc_store_ibatu(env, nr, val); +} + +void helper_store_ibatl(uint32_t nr, target_ulong val) +{ + ppc_store_ibatl(env, nr, val); +} + +void helper_store_dbatu(uint32_t nr, target_ulong val) +{ + ppc_store_dbatu(env, nr, val); +} + +void helper_store_dbatl(uint32_t nr, target_ulong val) +{ + ppc_store_dbatl(env, nr, val); +} + +void helper_store_601_batl(uint32_t nr, target_ulong val) +{ + ppc_store_ibatl_601(env, nr, val); +} + +void helper_store_601_batu(uint32_t nr, target_ulong val) +{ + ppc_store_ibatu_601(env, nr, val); +} + +/* Segment registers load and store */ +target_ulong helper_load_sr(target_ulong sr_num) +{ +#if defined(TARGET_PPC64) + if (env->mmu_model & POWERPC_MMU_64) { + return ppc_load_sr(env, sr_num); + } +#endif + return env->sr[sr_num]; +} + +void helper_store_sr(target_ulong sr_num, target_ulong val) +{ + ppc_store_sr(env, sr_num, val); +} + +/* SLB management */ +#if defined(TARGET_PPC64) +void helper_store_slb(target_ulong rb, target_ulong rs) +{ + if (ppc_store_slb(env, rb, rs) < 0) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_INVAL); + } +} + +target_ulong helper_load_slb_esid(target_ulong rb) +{ + target_ulong rt; + + if (ppc_load_slb_esid(env, rb, &rt) < 0) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_INVAL); + } + return rt; +} + +target_ulong helper_load_slb_vsid(target_ulong rb) +{ + target_ulong rt; + + if (ppc_load_slb_vsid(env, rb, &rt) < 0) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_INVAL); + } + return rt; +} + +void helper_slbia(void) +{ + ppc_slb_invalidate_all(env); +} + +void helper_slbie(target_ulong addr) +{ + ppc_slb_invalidate_one(env, addr); +} + +#endif /* defined(TARGET_PPC64) */ + +/* TLB management */ +void helper_tlbia(void) +{ + ppc_tlb_invalidate_all(env); +} + +void helper_tlbie(target_ulong addr) +{ + ppc_tlb_invalidate_one(env, addr); +} + +/* Software driven TLBs management */ +/* PowerPC 602/603 software TLB load instructions helpers */ +static void do_6xx_tlb(target_ulong new_EPN, int is_code) +{ + target_ulong RPN, CMP, EPN; + int way; + + RPN = env->spr[SPR_RPA]; + if (is_code) { + CMP = env->spr[SPR_ICMP]; + EPN = env->spr[SPR_IMISS]; + } else { + CMP = env->spr[SPR_DCMP]; + EPN = env->spr[SPR_DMISS]; + } + way = (env->spr[SPR_SRR1] >> 17) & 1; + (void)EPN; /* avoid a compiler warning */ + LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx + " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP, + RPN, way); + /* Store this TLB */ + ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), + way, is_code, CMP, RPN); +} + +void helper_6xx_tlbd(target_ulong EPN) +{ + do_6xx_tlb(EPN, 0); +} + +void helper_6xx_tlbi(target_ulong EPN) +{ + do_6xx_tlb(EPN, 1); +} + +/* PowerPC 74xx software TLB load instructions helpers */ +static void do_74xx_tlb(target_ulong new_EPN, int is_code) +{ + target_ulong RPN, CMP, EPN; + int way; + + RPN = env->spr[SPR_PTELO]; + CMP = env->spr[SPR_PTEHI]; + EPN = env->spr[SPR_TLBMISS] & ~0x3; + way = env->spr[SPR_TLBMISS] & 0x3; + (void)EPN; /* avoid a compiler warning */ + LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx + " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP, + RPN, way); + /* Store this TLB */ + ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), + way, is_code, CMP, RPN); +} + +void helper_74xx_tlbd(target_ulong EPN) +{ + do_74xx_tlb(EPN, 0); +} + +void helper_74xx_tlbi(target_ulong EPN) +{ + do_74xx_tlb(EPN, 1); +} + +/*****************************************************************************/ +/* PowerPC 601 specific instructions (POWER bridge) */ + +target_ulong helper_rac(target_ulong addr) +{ + mmu_ctx_t ctx; + int nb_BATs; + target_ulong ret = 0; + + /* We don't have to generate many instances of this instruction, + * as rac is supervisor only. + */ + /* XXX: FIX THIS: Pretend we have no BAT */ + nb_BATs = env->nb_BATs; + env->nb_BATs = 0; + if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) { + ret = ctx.raddr; + } + env->nb_BATs = nb_BATs; + return ret; +} + +static inline target_ulong booke_tlb_to_page_size(int size) +{ + return 1024 << (2 * size); +} + +static inline int booke_page_size_to_tlb(target_ulong page_size) +{ + int size; + + switch (page_size) { + case 0x00000400UL: + size = 0x0; + break; + case 0x00001000UL: + size = 0x1; + break; + case 0x00004000UL: + size = 0x2; + break; + case 0x00010000UL: + size = 0x3; + break; + case 0x00040000UL: + size = 0x4; + break; + case 0x00100000UL: + size = 0x5; + break; + case 0x00400000UL: + size = 0x6; + break; + case 0x01000000UL: + size = 0x7; + break; + case 0x04000000UL: + size = 0x8; + break; + case 0x10000000UL: + size = 0x9; + break; + case 0x40000000UL: + size = 0xA; + break; +#if defined(TARGET_PPC64) + case 0x000100000000ULL: + size = 0xB; + break; + case 0x000400000000ULL: + size = 0xC; + break; + case 0x001000000000ULL: + size = 0xD; + break; + case 0x004000000000ULL: + size = 0xE; + break; + case 0x010000000000ULL: + size = 0xF; + break; +#endif + default: + size = -1; + break; + } + + return size; +} + +/* Helpers for 4xx TLB management */ +#define PPC4XX_TLB_ENTRY_MASK 0x0000003f /* Mask for 64 TLB entries */ + +#define PPC4XX_TLBHI_V 0x00000040 +#define PPC4XX_TLBHI_E 0x00000020 +#define PPC4XX_TLBHI_SIZE_MIN 0 +#define PPC4XX_TLBHI_SIZE_MAX 7 +#define PPC4XX_TLBHI_SIZE_DEFAULT 1 +#define PPC4XX_TLBHI_SIZE_SHIFT 7 +#define PPC4XX_TLBHI_SIZE_MASK 0x00000007 + +#define PPC4XX_TLBLO_EX 0x00000200 +#define PPC4XX_TLBLO_WR 0x00000100 +#define PPC4XX_TLBLO_ATTR_MASK 0x000000FF +#define PPC4XX_TLBLO_RPN_MASK 0xFFFFFC00 + +target_ulong helper_4xx_tlbre_hi(target_ulong entry) +{ + ppcemb_tlb_t *tlb; + target_ulong ret; + int size; + + entry &= PPC4XX_TLB_ENTRY_MASK; + tlb = &env->tlb.tlbe[entry]; + ret = tlb->EPN; + if (tlb->prot & PAGE_VALID) { + ret |= PPC4XX_TLBHI_V; + } + size = booke_page_size_to_tlb(tlb->size); + if (size < PPC4XX_TLBHI_SIZE_MIN || size > PPC4XX_TLBHI_SIZE_MAX) { + size = PPC4XX_TLBHI_SIZE_DEFAULT; + } + ret |= size << PPC4XX_TLBHI_SIZE_SHIFT; + env->spr[SPR_40x_PID] = tlb->PID; + return ret; +} + +target_ulong helper_4xx_tlbre_lo(target_ulong entry) +{ + ppcemb_tlb_t *tlb; + target_ulong ret; + + entry &= PPC4XX_TLB_ENTRY_MASK; + tlb = &env->tlb.tlbe[entry]; + ret = tlb->RPN; + if (tlb->prot & PAGE_EXEC) { + ret |= PPC4XX_TLBLO_EX; + } + if (tlb->prot & PAGE_WRITE) { + ret |= PPC4XX_TLBLO_WR; + } + return ret; +} + +void helper_4xx_tlbwe_hi(target_ulong entry, target_ulong val) +{ + ppcemb_tlb_t *tlb; + target_ulong page, end; + + LOG_SWTLB("%s entry %d val " TARGET_FMT_lx "\n", __func__, (int)entry, + val); + entry &= PPC4XX_TLB_ENTRY_MASK; + tlb = &env->tlb.tlbe[entry]; + /* Invalidate previous TLB (if it's valid) */ + if (tlb->prot & PAGE_VALID) { + end = tlb->EPN + tlb->size; + LOG_SWTLB("%s: invalidate old TLB %d start " TARGET_FMT_lx " end " + TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end); + for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) { + tlb_flush_page(env, page); + } + } + tlb->size = booke_tlb_to_page_size((val >> PPC4XX_TLBHI_SIZE_SHIFT) + & PPC4XX_TLBHI_SIZE_MASK); + /* We cannot handle TLB size < TARGET_PAGE_SIZE. + * If this ever occurs, one should use the ppcemb target instead + * of the ppc or ppc64 one + */ + if ((val & PPC4XX_TLBHI_V) && tlb->size < TARGET_PAGE_SIZE) { + cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " + "are not supported (%d)\n", + tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7)); + } + tlb->EPN = val & ~(tlb->size - 1); + if (val & PPC4XX_TLBHI_V) { + tlb->prot |= PAGE_VALID; + if (val & PPC4XX_TLBHI_E) { + /* XXX: TO BE FIXED */ + cpu_abort(env, + "Little-endian TLB entries are not supported by now\n"); + } + } else { + tlb->prot &= ~PAGE_VALID; + } + tlb->PID = env->spr[SPR_40x_PID]; /* PID */ + LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx + " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__, + (int)entry, tlb->RPN, tlb->EPN, tlb->size, + tlb->prot & PAGE_READ ? 'r' : '-', + tlb->prot & PAGE_WRITE ? 'w' : '-', + tlb->prot & PAGE_EXEC ? 'x' : '-', + tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); + /* Invalidate new TLB (if valid) */ + if (tlb->prot & PAGE_VALID) { + end = tlb->EPN + tlb->size; + LOG_SWTLB("%s: invalidate TLB %d start " TARGET_FMT_lx " end " + TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end); + for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) { + tlb_flush_page(env, page); + } + } +} + +void helper_4xx_tlbwe_lo(target_ulong entry, target_ulong val) +{ + ppcemb_tlb_t *tlb; + + LOG_SWTLB("%s entry %i val " TARGET_FMT_lx "\n", __func__, (int)entry, + val); + entry &= PPC4XX_TLB_ENTRY_MASK; + tlb = &env->tlb.tlbe[entry]; + tlb->attr = val & PPC4XX_TLBLO_ATTR_MASK; + tlb->RPN = val & PPC4XX_TLBLO_RPN_MASK; + tlb->prot = PAGE_READ; + if (val & PPC4XX_TLBLO_EX) { + tlb->prot |= PAGE_EXEC; + } + if (val & PPC4XX_TLBLO_WR) { + tlb->prot |= PAGE_WRITE; + } + LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx + " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__, + (int)entry, tlb->RPN, tlb->EPN, tlb->size, + tlb->prot & PAGE_READ ? 'r' : '-', + tlb->prot & PAGE_WRITE ? 'w' : '-', + tlb->prot & PAGE_EXEC ? 'x' : '-', + tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); +} + +target_ulong helper_4xx_tlbsx(target_ulong address) +{ + return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]); +} + +/* PowerPC 440 TLB management */ +void helper_440_tlbwe(uint32_t word, target_ulong entry, target_ulong value) +{ + ppcemb_tlb_t *tlb; + target_ulong EPN, RPN, size; + int do_flush_tlbs; + + LOG_SWTLB("%s word %d entry %d value " TARGET_FMT_lx "\n", + __func__, word, (int)entry, value); + do_flush_tlbs = 0; + entry &= 0x3F; + tlb = &env->tlb.tlbe[entry]; + switch (word) { + default: + /* Just here to please gcc */ + case 0: + EPN = value & 0xFFFFFC00; + if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN) { + do_flush_tlbs = 1; + } + tlb->EPN = EPN; + size = booke_tlb_to_page_size((value >> 4) & 0xF); + if ((tlb->prot & PAGE_VALID) && tlb->size < size) { + do_flush_tlbs = 1; + } + tlb->size = size; + tlb->attr &= ~0x1; + tlb->attr |= (value >> 8) & 1; + if (value & 0x200) { + tlb->prot |= PAGE_VALID; + } else { + if (tlb->prot & PAGE_VALID) { + tlb->prot &= ~PAGE_VALID; + do_flush_tlbs = 1; + } + } + tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF; + if (do_flush_tlbs) { + tlb_flush(env, 1); + } + break; + case 1: + RPN = value & 0xFFFFFC0F; + if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN) { + tlb_flush(env, 1); + } + tlb->RPN = RPN; + break; + case 2: + tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00); + tlb->prot = tlb->prot & PAGE_VALID; + if (value & 0x1) { + tlb->prot |= PAGE_READ << 4; + } + if (value & 0x2) { + tlb->prot |= PAGE_WRITE << 4; + } + if (value & 0x4) { + tlb->prot |= PAGE_EXEC << 4; + } + if (value & 0x8) { + tlb->prot |= PAGE_READ; + } + if (value & 0x10) { + tlb->prot |= PAGE_WRITE; + } + if (value & 0x20) { + tlb->prot |= PAGE_EXEC; + } + break; + } +} + +target_ulong helper_440_tlbre(uint32_t word, target_ulong entry) +{ + ppcemb_tlb_t *tlb; + target_ulong ret; + int size; + + entry &= 0x3F; + tlb = &env->tlb.tlbe[entry]; + switch (word) { + default: + /* Just here to please gcc */ + case 0: + ret = tlb->EPN; + size = booke_page_size_to_tlb(tlb->size); + if (size < 0 || size > 0xF) { + size = 1; + } + ret |= size << 4; + if (tlb->attr & 0x1) { + ret |= 0x100; + } + if (tlb->prot & PAGE_VALID) { + ret |= 0x200; + } + env->spr[SPR_440_MMUCR] &= ~0x000000FF; + env->spr[SPR_440_MMUCR] |= tlb->PID; + break; + case 1: + ret = tlb->RPN; + break; + case 2: + ret = tlb->attr & ~0x1; + if (tlb->prot & (PAGE_READ << 4)) { + ret |= 0x1; + } + if (tlb->prot & (PAGE_WRITE << 4)) { + ret |= 0x2; + } + if (tlb->prot & (PAGE_EXEC << 4)) { + ret |= 0x4; + } + if (tlb->prot & PAGE_READ) { + ret |= 0x8; + } + if (tlb->prot & PAGE_WRITE) { + ret |= 0x10; + } + if (tlb->prot & PAGE_EXEC) { + ret |= 0x20; + } + break; + } + return ret; +} + +target_ulong helper_440_tlbsx(target_ulong address) +{ + return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF); +} + +/* PowerPC BookE 2.06 TLB management */ + +static ppcmas_tlb_t *booke206_cur_tlb(CPUPPCState *env) +{ + uint32_t tlbncfg = 0; + int esel = (env->spr[SPR_BOOKE_MAS0] & MAS0_ESEL_MASK) >> MAS0_ESEL_SHIFT; + int ea = (env->spr[SPR_BOOKE_MAS2] & MAS2_EPN_MASK); + int tlb; + + tlb = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT; + tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlb]; + + if ((tlbncfg & TLBnCFG_HES) && (env->spr[SPR_BOOKE_MAS0] & MAS0_HES)) { + cpu_abort(env, "we don't support HES yet\n"); + } + + return booke206_get_tlbm(env, tlb, ea, esel); +} + +void helper_booke_setpid(uint32_t pidn, target_ulong pid) +{ + env->spr[pidn] = pid; + /* changing PIDs mean we're in a different address space now */ + tlb_flush(env, 1); +} + +void helper_booke206_tlbwe(void) +{ + uint32_t tlbncfg, tlbn; + ppcmas_tlb_t *tlb; + uint32_t size_tlb, size_ps; + + switch (env->spr[SPR_BOOKE_MAS0] & MAS0_WQ_MASK) { + case MAS0_WQ_ALWAYS: + /* good to go, write that entry */ + break; + case MAS0_WQ_COND: + /* XXX check if reserved */ + if (0) { + return; + } + break; + case MAS0_WQ_CLR_RSRV: + /* XXX clear entry */ + return; + default: + /* no idea what to do */ + return; + } + + if (((env->spr[SPR_BOOKE_MAS0] & MAS0_ATSEL) == MAS0_ATSEL_LRAT) && + !msr_gs) { + /* XXX we don't support direct LRAT setting yet */ + fprintf(stderr, "cpu: don't support LRAT setting yet\n"); + return; + } + + tlbn = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT; + tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlbn]; + + tlb = booke206_cur_tlb(env); + + if (!tlb) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_INVAL | + POWERPC_EXCP_INVAL_INVAL); + } + + /* check that we support the targeted size */ + size_tlb = (env->spr[SPR_BOOKE_MAS1] & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT; + size_ps = booke206_tlbnps(env, tlbn); + if ((env->spr[SPR_BOOKE_MAS1] & MAS1_VALID) && (tlbncfg & TLBnCFG_AVAIL) && + !(size_ps & (1 << size_tlb))) { + helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, + POWERPC_EXCP_INVAL | + POWERPC_EXCP_INVAL_INVAL); + } + + if (msr_gs) { + cpu_abort(env, "missing HV implementation\n"); + } + tlb->mas7_3 = ((uint64_t)env->spr[SPR_BOOKE_MAS7] << 32) | + env->spr[SPR_BOOKE_MAS3]; + tlb->mas1 = env->spr[SPR_BOOKE_MAS1]; + + /* MAV 1.0 only */ + if (!(tlbncfg & TLBnCFG_AVAIL)) { + /* force !AVAIL TLB entries to correct page size */ + tlb->mas1 &= ~MAS1_TSIZE_MASK; + /* XXX can be configured in MMUCSR0 */ + tlb->mas1 |= (tlbncfg & TLBnCFG_MINSIZE) >> 12; + } + + /* XXX needs to change when supporting 64-bit e500 */ + tlb->mas2 = env->spr[SPR_BOOKE_MAS2] & 0xffffffff; + + if (!(tlbncfg & TLBnCFG_IPROT)) { + /* no IPROT supported by TLB */ + tlb->mas1 &= ~MAS1_IPROT; + } + + if (booke206_tlb_to_page_size(env, tlb) == TARGET_PAGE_SIZE) { + tlb_flush_page(env, tlb->mas2 & MAS2_EPN_MASK); + } else { + tlb_flush(env, 1); + } +} + +static inline void booke206_tlb_to_mas(CPUPPCState *env, ppcmas_tlb_t *tlb) +{ + int tlbn = booke206_tlbm_to_tlbn(env, tlb); + int way = booke206_tlbm_to_way(env, tlb); + + env->spr[SPR_BOOKE_MAS0] = tlbn << MAS0_TLBSEL_SHIFT; + env->spr[SPR_BOOKE_MAS0] |= way << MAS0_ESEL_SHIFT; + env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT; + + env->spr[SPR_BOOKE_MAS1] = tlb->mas1; + env->spr[SPR_BOOKE_MAS2] = tlb->mas2; + env->spr[SPR_BOOKE_MAS3] = tlb->mas7_3; + env->spr[SPR_BOOKE_MAS7] = tlb->mas7_3 >> 32; +} + +void helper_booke206_tlbre(void) +{ + ppcmas_tlb_t *tlb = NULL; + + tlb = booke206_cur_tlb(env); + if (!tlb) { + env->spr[SPR_BOOKE_MAS1] = 0; + } else { + booke206_tlb_to_mas(env, tlb); + } +} + +void helper_booke206_tlbsx(target_ulong address) +{ + ppcmas_tlb_t *tlb = NULL; + int i, j; + target_phys_addr_t raddr; + uint32_t spid, sas; + + spid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID_MASK) >> MAS6_SPID_SHIFT; + sas = env->spr[SPR_BOOKE_MAS6] & MAS6_SAS; + + for (i = 0; i < BOOKE206_MAX_TLBN; i++) { + int ways = booke206_tlb_ways(env, i); + + for (j = 0; j < ways; j++) { + tlb = booke206_get_tlbm(env, i, address, j); + + if (!tlb) { + continue; + } + + if (ppcmas_tlb_check(env, tlb, &raddr, address, spid)) { + continue; + } + + if (sas != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) { + continue; + } + + booke206_tlb_to_mas(env, tlb); + return; + } + } + + /* no entry found, fill with defaults */ + env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK; + env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK; + env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK; + env->spr[SPR_BOOKE_MAS3] = 0; + env->spr[SPR_BOOKE_MAS7] = 0; + + if (env->spr[SPR_BOOKE_MAS6] & MAS6_SAS) { + env->spr[SPR_BOOKE_MAS1] |= MAS1_TS; + } + + env->spr[SPR_BOOKE_MAS1] |= (env->spr[SPR_BOOKE_MAS6] >> 16) + << MAS1_TID_SHIFT; + + /* next victim logic */ + env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT; + env->last_way++; + env->last_way &= booke206_tlb_ways(env, 0) - 1; + env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT; +} + +static inline void booke206_invalidate_ea_tlb(CPUPPCState *env, int tlbn, + uint32_t ea) +{ + int i; + int ways = booke206_tlb_ways(env, tlbn); + target_ulong mask; + + for (i = 0; i < ways; i++) { + ppcmas_tlb_t *tlb = booke206_get_tlbm(env, tlbn, ea, i); + if (!tlb) { + continue; + } + mask = ~(booke206_tlb_to_page_size(env, tlb) - 1); + if (((tlb->mas2 & MAS2_EPN_MASK) == (ea & mask)) && + !(tlb->mas1 & MAS1_IPROT)) { + tlb->mas1 &= ~MAS1_VALID; + } + } +} + +void helper_booke206_tlbivax(target_ulong address) +{ + if (address & 0x4) { + /* flush all entries */ + if (address & 0x8) { + /* flush all of TLB1 */ + booke206_flush_tlb(env, BOOKE206_FLUSH_TLB1, 1); + } else { + /* flush all of TLB0 */ + booke206_flush_tlb(env, BOOKE206_FLUSH_TLB0, 0); + } + return; + } + + if (address & 0x8) { + /* flush TLB1 entries */ + booke206_invalidate_ea_tlb(env, 1, address); + tlb_flush(env, 1); + } else { + /* flush TLB0 entries */ + booke206_invalidate_ea_tlb(env, 0, address); + tlb_flush_page(env, address & MAS2_EPN_MASK); + } +} + +void helper_booke206_tlbilx0(target_ulong address) +{ + /* XXX missing LPID handling */ + booke206_flush_tlb(env, -1, 1); +} + +void helper_booke206_tlbilx1(target_ulong address) +{ + int i, j; + int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID); + ppcmas_tlb_t *tlb = env->tlb.tlbm; + int tlb_size; + + /* XXX missing LPID handling */ + for (i = 0; i < BOOKE206_MAX_TLBN; i++) { + tlb_size = booke206_tlb_size(env, i); + for (j = 0; j < tlb_size; j++) { + if (!(tlb[j].mas1 & MAS1_IPROT) && + ((tlb[j].mas1 & MAS1_TID_MASK) == tid)) { + tlb[j].mas1 &= ~MAS1_VALID; + } + } + tlb += booke206_tlb_size(env, i); + } + tlb_flush(env, 1); +} + +void helper_booke206_tlbilx3(target_ulong address) +{ + int i, j; + ppcmas_tlb_t *tlb; + int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID); + int pid = tid >> MAS6_SPID_SHIFT; + int sgs = env->spr[SPR_BOOKE_MAS5] & MAS5_SGS; + int ind = (env->spr[SPR_BOOKE_MAS6] & MAS6_SIND) ? MAS1_IND : 0; + /* XXX check for unsupported isize and raise an invalid opcode then */ + int size = env->spr[SPR_BOOKE_MAS6] & MAS6_ISIZE_MASK; + /* XXX implement MAV2 handling */ + bool mav2 = false; + + /* XXX missing LPID handling */ + /* flush by pid and ea */ + for (i = 0; i < BOOKE206_MAX_TLBN; i++) { + int ways = booke206_tlb_ways(env, i); + + for (j = 0; j < ways; j++) { + tlb = booke206_get_tlbm(env, i, address, j); + if (!tlb) { + continue; + } + if ((ppcmas_tlb_check(env, tlb, NULL, address, pid) != 0) || + (tlb->mas1 & MAS1_IPROT) || + ((tlb->mas1 & MAS1_IND) != ind) || + ((tlb->mas8 & MAS8_TGS) != sgs)) { + continue; + } + if (mav2 && ((tlb->mas1 & MAS1_TSIZE_MASK) != size)) { + /* XXX only check when MMUCFG[TWC] || TLBnCFG[HES] */ + continue; + } + /* XXX e500mc doesn't match SAS, but other cores might */ + tlb->mas1 &= ~MAS1_VALID; + } + } + tlb_flush(env, 1); +} + +void helper_booke206_tlbflush(uint32_t type) +{ + int flags = 0; + + if (type & 2) { + flags |= BOOKE206_FLUSH_TLB1; + } + + if (type & 4) { + flags |= BOOKE206_FLUSH_TLB0; + } + + booke206_flush_tlb(env, flags, 1); +} +#endif diff --git a/target-ppc/op_helper.c b/target-ppc/op_helper.c index 55b9e9dcb9..c854c71225 100644 --- a/target-ppc/op_helper.c +++ b/target-ppc/op_helper.c @@ -29,13 +29,6 @@ #endif /* !defined(CONFIG_USER_ONLY) */ //#define DEBUG_OP -//#define DEBUG_SOFTWARE_TLB - -#ifdef DEBUG_SOFTWARE_TLB -# define LOG_SWTLB(...) qemu_log(__VA_ARGS__) -#else -# define LOG_SWTLB(...) do { } while (0) -#endif /*****************************************************************************/ /* SPR accesses */ @@ -196,36 +189,6 @@ void helper_store_booke_tsr(target_ulong val) { store_booke_tsr(env, val); } - -void helper_store_ibatu(uint32_t nr, target_ulong val) -{ - ppc_store_ibatu(env, nr, val); -} - -void helper_store_ibatl(uint32_t nr, target_ulong val) -{ - ppc_store_ibatl(env, nr, val); -} - -void helper_store_dbatu(uint32_t nr, target_ulong val) -{ - ppc_store_dbatu(env, nr, val); -} - -void helper_store_dbatl(uint32_t nr, target_ulong val) -{ - ppc_store_dbatl(env, nr, val); -} - -void helper_store_601_batl(uint32_t nr, target_ulong val) -{ - ppc_store_ibatl_601(env, nr, val); -} - -void helper_store_601_batu(uint32_t nr, target_ulong val) -{ - ppc_store_ibatu_601(env, nr, val); -} #endif /*****************************************************************************/ @@ -417,27 +380,6 @@ target_ulong helper_clcs(uint32_t arg) } } -#if !defined(CONFIG_USER_ONLY) -target_ulong helper_rac(target_ulong addr) -{ - mmu_ctx_t ctx; - int nb_BATs; - target_ulong ret = 0; - - /* We don't have to generate many instances of this instruction, - * as rac is supervisor only. - */ - /* XXX: FIX THIS: Pretend we have no BAT */ - nb_BATs = env->nb_BATs; - env->nb_BATs = 0; - if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) { - ret = ctx.raddr; - } - env->nb_BATs = nb_BATs; - return ret; -} -#endif - /*****************************************************************************/ /* Embedded PowerPC specific helpers */ @@ -578,800 +520,4 @@ void tlb_fill(CPUPPCState *env1, target_ulong addr, int is_write, int mmu_idx, } env = saved_env; } - -/* Segment registers load and store */ -target_ulong helper_load_sr(target_ulong sr_num) -{ -#if defined(TARGET_PPC64) - if (env->mmu_model & POWERPC_MMU_64) { - return ppc_load_sr(env, sr_num); - } -#endif - return env->sr[sr_num]; -} - -void helper_store_sr(target_ulong sr_num, target_ulong val) -{ - ppc_store_sr(env, sr_num, val); -} - -/* SLB management */ -#if defined(TARGET_PPC64) -void helper_store_slb(target_ulong rb, target_ulong rs) -{ - if (ppc_store_slb(env, rb, rs) < 0) { - helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, - POWERPC_EXCP_INVAL); - } -} - -target_ulong helper_load_slb_esid(target_ulong rb) -{ - target_ulong rt; - - if (ppc_load_slb_esid(env, rb, &rt) < 0) { - helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, - POWERPC_EXCP_INVAL); - } - return rt; -} - -target_ulong helper_load_slb_vsid(target_ulong rb) -{ - target_ulong rt; - - if (ppc_load_slb_vsid(env, rb, &rt) < 0) { - helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, - POWERPC_EXCP_INVAL); - } - return rt; -} - -void helper_slbia(void) -{ - ppc_slb_invalidate_all(env); -} - -void helper_slbie(target_ulong addr) -{ - ppc_slb_invalidate_one(env, addr); -} - -#endif /* defined(TARGET_PPC64) */ - -/* TLB management */ -void helper_tlbia(void) -{ - ppc_tlb_invalidate_all(env); -} - -void helper_tlbie(target_ulong addr) -{ - ppc_tlb_invalidate_one(env, addr); -} - -/* Software driven TLBs management */ -/* PowerPC 602/603 software TLB load instructions helpers */ -static void do_6xx_tlb(target_ulong new_EPN, int is_code) -{ - target_ulong RPN, CMP, EPN; - int way; - - RPN = env->spr[SPR_RPA]; - if (is_code) { - CMP = env->spr[SPR_ICMP]; - EPN = env->spr[SPR_IMISS]; - } else { - CMP = env->spr[SPR_DCMP]; - EPN = env->spr[SPR_DMISS]; - } - way = (env->spr[SPR_SRR1] >> 17) & 1; - (void)EPN; /* avoid a compiler warning */ - LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx - " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP, - RPN, way); - /* Store this TLB */ - ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), - way, is_code, CMP, RPN); -} - -void helper_6xx_tlbd(target_ulong EPN) -{ - do_6xx_tlb(EPN, 0); -} - -void helper_6xx_tlbi(target_ulong EPN) -{ - do_6xx_tlb(EPN, 1); -} - -/* PowerPC 74xx software TLB load instructions helpers */ -static void do_74xx_tlb(target_ulong new_EPN, int is_code) -{ - target_ulong RPN, CMP, EPN; - int way; - - RPN = env->spr[SPR_PTELO]; - CMP = env->spr[SPR_PTEHI]; - EPN = env->spr[SPR_TLBMISS] & ~0x3; - way = env->spr[SPR_TLBMISS] & 0x3; - (void)EPN; /* avoid a compiler warning */ - LOG_SWTLB("%s: EPN " TARGET_FMT_lx " " TARGET_FMT_lx " PTE0 " TARGET_FMT_lx - " PTE1 " TARGET_FMT_lx " way %d\n", __func__, new_EPN, EPN, CMP, - RPN, way); - /* Store this TLB */ - ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), - way, is_code, CMP, RPN); -} - -void helper_74xx_tlbd(target_ulong EPN) -{ - do_74xx_tlb(EPN, 0); -} - -void helper_74xx_tlbi(target_ulong EPN) -{ - do_74xx_tlb(EPN, 1); -} - -static inline target_ulong booke_tlb_to_page_size(int size) -{ - return 1024 << (2 * size); -} - -static inline int booke_page_size_to_tlb(target_ulong page_size) -{ - int size; - - switch (page_size) { - case 0x00000400UL: - size = 0x0; - break; - case 0x00001000UL: - size = 0x1; - break; - case 0x00004000UL: - size = 0x2; - break; - case 0x00010000UL: - size = 0x3; - break; - case 0x00040000UL: - size = 0x4; - break; - case 0x00100000UL: - size = 0x5; - break; - case 0x00400000UL: - size = 0x6; - break; - case 0x01000000UL: - size = 0x7; - break; - case 0x04000000UL: - size = 0x8; - break; - case 0x10000000UL: - size = 0x9; - break; - case 0x40000000UL: - size = 0xA; - break; -#if defined(TARGET_PPC64) - case 0x000100000000ULL: - size = 0xB; - break; - case 0x000400000000ULL: - size = 0xC; - break; - case 0x001000000000ULL: - size = 0xD; - break; - case 0x004000000000ULL: - size = 0xE; - break; - case 0x010000000000ULL: - size = 0xF; - break; -#endif - default: - size = -1; - break; - } - - return size; -} - -/* Helpers for 4xx TLB management */ -#define PPC4XX_TLB_ENTRY_MASK 0x0000003f /* Mask for 64 TLB entries */ - -#define PPC4XX_TLBHI_V 0x00000040 -#define PPC4XX_TLBHI_E 0x00000020 -#define PPC4XX_TLBHI_SIZE_MIN 0 -#define PPC4XX_TLBHI_SIZE_MAX 7 -#define PPC4XX_TLBHI_SIZE_DEFAULT 1 -#define PPC4XX_TLBHI_SIZE_SHIFT 7 -#define PPC4XX_TLBHI_SIZE_MASK 0x00000007 - -#define PPC4XX_TLBLO_EX 0x00000200 -#define PPC4XX_TLBLO_WR 0x00000100 -#define PPC4XX_TLBLO_ATTR_MASK 0x000000FF -#define PPC4XX_TLBLO_RPN_MASK 0xFFFFFC00 - -target_ulong helper_4xx_tlbre_hi(target_ulong entry) -{ - ppcemb_tlb_t *tlb; - target_ulong ret; - int size; - - entry &= PPC4XX_TLB_ENTRY_MASK; - tlb = &env->tlb.tlbe[entry]; - ret = tlb->EPN; - if (tlb->prot & PAGE_VALID) { - ret |= PPC4XX_TLBHI_V; - } - size = booke_page_size_to_tlb(tlb->size); - if (size < PPC4XX_TLBHI_SIZE_MIN || size > PPC4XX_TLBHI_SIZE_MAX) { - size = PPC4XX_TLBHI_SIZE_DEFAULT; - } - ret |= size << PPC4XX_TLBHI_SIZE_SHIFT; - env->spr[SPR_40x_PID] = tlb->PID; - return ret; -} - -target_ulong helper_4xx_tlbre_lo(target_ulong entry) -{ - ppcemb_tlb_t *tlb; - target_ulong ret; - - entry &= PPC4XX_TLB_ENTRY_MASK; - tlb = &env->tlb.tlbe[entry]; - ret = tlb->RPN; - if (tlb->prot & PAGE_EXEC) { - ret |= PPC4XX_TLBLO_EX; - } - if (tlb->prot & PAGE_WRITE) { - ret |= PPC4XX_TLBLO_WR; - } - return ret; -} - -void helper_4xx_tlbwe_hi(target_ulong entry, target_ulong val) -{ - ppcemb_tlb_t *tlb; - target_ulong page, end; - - LOG_SWTLB("%s entry %d val " TARGET_FMT_lx "\n", __func__, (int)entry, - val); - entry &= PPC4XX_TLB_ENTRY_MASK; - tlb = &env->tlb.tlbe[entry]; - /* Invalidate previous TLB (if it's valid) */ - if (tlb->prot & PAGE_VALID) { - end = tlb->EPN + tlb->size; - LOG_SWTLB("%s: invalidate old TLB %d start " TARGET_FMT_lx " end " - TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end); - for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) { - tlb_flush_page(env, page); - } - } - tlb->size = booke_tlb_to_page_size((val >> PPC4XX_TLBHI_SIZE_SHIFT) - & PPC4XX_TLBHI_SIZE_MASK); - /* We cannot handle TLB size < TARGET_PAGE_SIZE. - * If this ever occurs, one should use the ppcemb target instead - * of the ppc or ppc64 one - */ - if ((val & PPC4XX_TLBHI_V) && tlb->size < TARGET_PAGE_SIZE) { - cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " - "are not supported (%d)\n", - tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7)); - } - tlb->EPN = val & ~(tlb->size - 1); - if (val & PPC4XX_TLBHI_V) { - tlb->prot |= PAGE_VALID; - if (val & PPC4XX_TLBHI_E) { - /* XXX: TO BE FIXED */ - cpu_abort(env, - "Little-endian TLB entries are not supported by now\n"); - } - } else { - tlb->prot &= ~PAGE_VALID; - } - tlb->PID = env->spr[SPR_40x_PID]; /* PID */ - LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx - " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__, - (int)entry, tlb->RPN, tlb->EPN, tlb->size, - tlb->prot & PAGE_READ ? 'r' : '-', - tlb->prot & PAGE_WRITE ? 'w' : '-', - tlb->prot & PAGE_EXEC ? 'x' : '-', - tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); - /* Invalidate new TLB (if valid) */ - if (tlb->prot & PAGE_VALID) { - end = tlb->EPN + tlb->size; - LOG_SWTLB("%s: invalidate TLB %d start " TARGET_FMT_lx " end " - TARGET_FMT_lx "\n", __func__, (int)entry, tlb->EPN, end); - for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE) { - tlb_flush_page(env, page); - } - } -} - -void helper_4xx_tlbwe_lo(target_ulong entry, target_ulong val) -{ - ppcemb_tlb_t *tlb; - - LOG_SWTLB("%s entry %i val " TARGET_FMT_lx "\n", __func__, (int)entry, - val); - entry &= PPC4XX_TLB_ENTRY_MASK; - tlb = &env->tlb.tlbe[entry]; - tlb->attr = val & PPC4XX_TLBLO_ATTR_MASK; - tlb->RPN = val & PPC4XX_TLBLO_RPN_MASK; - tlb->prot = PAGE_READ; - if (val & PPC4XX_TLBLO_EX) { - tlb->prot |= PAGE_EXEC; - } - if (val & PPC4XX_TLBLO_WR) { - tlb->prot |= PAGE_WRITE; - } - LOG_SWTLB("%s: set up TLB %d RPN " TARGET_FMT_plx " EPN " TARGET_FMT_lx - " size " TARGET_FMT_lx " prot %c%c%c%c PID %d\n", __func__, - (int)entry, tlb->RPN, tlb->EPN, tlb->size, - tlb->prot & PAGE_READ ? 'r' : '-', - tlb->prot & PAGE_WRITE ? 'w' : '-', - tlb->prot & PAGE_EXEC ? 'x' : '-', - tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); -} - -target_ulong helper_4xx_tlbsx(target_ulong address) -{ - return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]); -} - -/* PowerPC 440 TLB management */ -void helper_440_tlbwe(uint32_t word, target_ulong entry, target_ulong value) -{ - ppcemb_tlb_t *tlb; - target_ulong EPN, RPN, size; - int do_flush_tlbs; - - LOG_SWTLB("%s word %d entry %d value " TARGET_FMT_lx "\n", - __func__, word, (int)entry, value); - do_flush_tlbs = 0; - entry &= 0x3F; - tlb = &env->tlb.tlbe[entry]; - switch (word) { - default: - /* Just here to please gcc */ - case 0: - EPN = value & 0xFFFFFC00; - if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN) { - do_flush_tlbs = 1; - } - tlb->EPN = EPN; - size = booke_tlb_to_page_size((value >> 4) & 0xF); - if ((tlb->prot & PAGE_VALID) && tlb->size < size) { - do_flush_tlbs = 1; - } - tlb->size = size; - tlb->attr &= ~0x1; - tlb->attr |= (value >> 8) & 1; - if (value & 0x200) { - tlb->prot |= PAGE_VALID; - } else { - if (tlb->prot & PAGE_VALID) { - tlb->prot &= ~PAGE_VALID; - do_flush_tlbs = 1; - } - } - tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF; - if (do_flush_tlbs) { - tlb_flush(env, 1); - } - break; - case 1: - RPN = value & 0xFFFFFC0F; - if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN) { - tlb_flush(env, 1); - } - tlb->RPN = RPN; - break; - case 2: - tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00); - tlb->prot = tlb->prot & PAGE_VALID; - if (value & 0x1) { - tlb->prot |= PAGE_READ << 4; - } - if (value & 0x2) { - tlb->prot |= PAGE_WRITE << 4; - } - if (value & 0x4) { - tlb->prot |= PAGE_EXEC << 4; - } - if (value & 0x8) { - tlb->prot |= PAGE_READ; - } - if (value & 0x10) { - tlb->prot |= PAGE_WRITE; - } - if (value & 0x20) { - tlb->prot |= PAGE_EXEC; - } - break; - } -} - -target_ulong helper_440_tlbre(uint32_t word, target_ulong entry) -{ - ppcemb_tlb_t *tlb; - target_ulong ret; - int size; - - entry &= 0x3F; - tlb = &env->tlb.tlbe[entry]; - switch (word) { - default: - /* Just here to please gcc */ - case 0: - ret = tlb->EPN; - size = booke_page_size_to_tlb(tlb->size); - if (size < 0 || size > 0xF) { - size = 1; - } - ret |= size << 4; - if (tlb->attr & 0x1) { - ret |= 0x100; - } - if (tlb->prot & PAGE_VALID) { - ret |= 0x200; - } - env->spr[SPR_440_MMUCR] &= ~0x000000FF; - env->spr[SPR_440_MMUCR] |= tlb->PID; - break; - case 1: - ret = tlb->RPN; - break; - case 2: - ret = tlb->attr & ~0x1; - if (tlb->prot & (PAGE_READ << 4)) { - ret |= 0x1; - } - if (tlb->prot & (PAGE_WRITE << 4)) { - ret |= 0x2; - } - if (tlb->prot & (PAGE_EXEC << 4)) { - ret |= 0x4; - } - if (tlb->prot & PAGE_READ) { - ret |= 0x8; - } - if (tlb->prot & PAGE_WRITE) { - ret |= 0x10; - } - if (tlb->prot & PAGE_EXEC) { - ret |= 0x20; - } - break; - } - return ret; -} - -target_ulong helper_440_tlbsx(target_ulong address) -{ - return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF); -} - -/* PowerPC BookE 2.06 TLB management */ - -static ppcmas_tlb_t *booke206_cur_tlb(CPUPPCState *env) -{ - uint32_t tlbncfg = 0; - int esel = (env->spr[SPR_BOOKE_MAS0] & MAS0_ESEL_MASK) >> MAS0_ESEL_SHIFT; - int ea = (env->spr[SPR_BOOKE_MAS2] & MAS2_EPN_MASK); - int tlb; - - tlb = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT; - tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlb]; - - if ((tlbncfg & TLBnCFG_HES) && (env->spr[SPR_BOOKE_MAS0] & MAS0_HES)) { - cpu_abort(env, "we don't support HES yet\n"); - } - - return booke206_get_tlbm(env, tlb, ea, esel); -} - -void helper_booke_setpid(uint32_t pidn, target_ulong pid) -{ - env->spr[pidn] = pid; - /* changing PIDs mean we're in a different address space now */ - tlb_flush(env, 1); -} - -void helper_booke206_tlbwe(void) -{ - uint32_t tlbncfg, tlbn; - ppcmas_tlb_t *tlb; - uint32_t size_tlb, size_ps; - - switch (env->spr[SPR_BOOKE_MAS0] & MAS0_WQ_MASK) { - case MAS0_WQ_ALWAYS: - /* good to go, write that entry */ - break; - case MAS0_WQ_COND: - /* XXX check if reserved */ - if (0) { - return; - } - break; - case MAS0_WQ_CLR_RSRV: - /* XXX clear entry */ - return; - default: - /* no idea what to do */ - return; - } - - if (((env->spr[SPR_BOOKE_MAS0] & MAS0_ATSEL) == MAS0_ATSEL_LRAT) && - !msr_gs) { - /* XXX we don't support direct LRAT setting yet */ - fprintf(stderr, "cpu: don't support LRAT setting yet\n"); - return; - } - - tlbn = (env->spr[SPR_BOOKE_MAS0] & MAS0_TLBSEL_MASK) >> MAS0_TLBSEL_SHIFT; - tlbncfg = env->spr[SPR_BOOKE_TLB0CFG + tlbn]; - - tlb = booke206_cur_tlb(env); - - if (!tlb) { - helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, - POWERPC_EXCP_INVAL | - POWERPC_EXCP_INVAL_INVAL); - } - - /* check that we support the targeted size */ - size_tlb = (env->spr[SPR_BOOKE_MAS1] & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT; - size_ps = booke206_tlbnps(env, tlbn); - if ((env->spr[SPR_BOOKE_MAS1] & MAS1_VALID) && (tlbncfg & TLBnCFG_AVAIL) && - !(size_ps & (1 << size_tlb))) { - helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, - POWERPC_EXCP_INVAL | - POWERPC_EXCP_INVAL_INVAL); - } - - if (msr_gs) { - cpu_abort(env, "missing HV implementation\n"); - } - tlb->mas7_3 = ((uint64_t)env->spr[SPR_BOOKE_MAS7] << 32) | - env->spr[SPR_BOOKE_MAS3]; - tlb->mas1 = env->spr[SPR_BOOKE_MAS1]; - - /* MAV 1.0 only */ - if (!(tlbncfg & TLBnCFG_AVAIL)) { - /* force !AVAIL TLB entries to correct page size */ - tlb->mas1 &= ~MAS1_TSIZE_MASK; - /* XXX can be configured in MMUCSR0 */ - tlb->mas1 |= (tlbncfg & TLBnCFG_MINSIZE) >> 12; - } - - /* XXX needs to change when supporting 64-bit e500 */ - tlb->mas2 = env->spr[SPR_BOOKE_MAS2] & 0xffffffff; - - if (!(tlbncfg & TLBnCFG_IPROT)) { - /* no IPROT supported by TLB */ - tlb->mas1 &= ~MAS1_IPROT; - } - - if (booke206_tlb_to_page_size(env, tlb) == TARGET_PAGE_SIZE) { - tlb_flush_page(env, tlb->mas2 & MAS2_EPN_MASK); - } else { - tlb_flush(env, 1); - } -} - -static inline void booke206_tlb_to_mas(CPUPPCState *env, ppcmas_tlb_t *tlb) -{ - int tlbn = booke206_tlbm_to_tlbn(env, tlb); - int way = booke206_tlbm_to_way(env, tlb); - - env->spr[SPR_BOOKE_MAS0] = tlbn << MAS0_TLBSEL_SHIFT; - env->spr[SPR_BOOKE_MAS0] |= way << MAS0_ESEL_SHIFT; - env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT; - - env->spr[SPR_BOOKE_MAS1] = tlb->mas1; - env->spr[SPR_BOOKE_MAS2] = tlb->mas2; - env->spr[SPR_BOOKE_MAS3] = tlb->mas7_3; - env->spr[SPR_BOOKE_MAS7] = tlb->mas7_3 >> 32; -} - -void helper_booke206_tlbre(void) -{ - ppcmas_tlb_t *tlb = NULL; - - tlb = booke206_cur_tlb(env); - if (!tlb) { - env->spr[SPR_BOOKE_MAS1] = 0; - } else { - booke206_tlb_to_mas(env, tlb); - } -} - -void helper_booke206_tlbsx(target_ulong address) -{ - ppcmas_tlb_t *tlb = NULL; - int i, j; - target_phys_addr_t raddr; - uint32_t spid, sas; - - spid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID_MASK) >> MAS6_SPID_SHIFT; - sas = env->spr[SPR_BOOKE_MAS6] & MAS6_SAS; - - for (i = 0; i < BOOKE206_MAX_TLBN; i++) { - int ways = booke206_tlb_ways(env, i); - - for (j = 0; j < ways; j++) { - tlb = booke206_get_tlbm(env, i, address, j); - - if (!tlb) { - continue; - } - - if (ppcmas_tlb_check(env, tlb, &raddr, address, spid)) { - continue; - } - - if (sas != ((tlb->mas1 & MAS1_TS) >> MAS1_TS_SHIFT)) { - continue; - } - - booke206_tlb_to_mas(env, tlb); - return; - } - } - - /* no entry found, fill with defaults */ - env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK; - env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK; - env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK; - env->spr[SPR_BOOKE_MAS3] = 0; - env->spr[SPR_BOOKE_MAS7] = 0; - - if (env->spr[SPR_BOOKE_MAS6] & MAS6_SAS) { - env->spr[SPR_BOOKE_MAS1] |= MAS1_TS; - } - - env->spr[SPR_BOOKE_MAS1] |= (env->spr[SPR_BOOKE_MAS6] >> 16) - << MAS1_TID_SHIFT; - - /* next victim logic */ - env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT; - env->last_way++; - env->last_way &= booke206_tlb_ways(env, 0) - 1; - env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT; -} - -static inline void booke206_invalidate_ea_tlb(CPUPPCState *env, int tlbn, - uint32_t ea) -{ - int i; - int ways = booke206_tlb_ways(env, tlbn); - target_ulong mask; - - for (i = 0; i < ways; i++) { - ppcmas_tlb_t *tlb = booke206_get_tlbm(env, tlbn, ea, i); - if (!tlb) { - continue; - } - mask = ~(booke206_tlb_to_page_size(env, tlb) - 1); - if (((tlb->mas2 & MAS2_EPN_MASK) == (ea & mask)) && - !(tlb->mas1 & MAS1_IPROT)) { - tlb->mas1 &= ~MAS1_VALID; - } - } -} - -void helper_booke206_tlbivax(target_ulong address) -{ - if (address & 0x4) { - /* flush all entries */ - if (address & 0x8) { - /* flush all of TLB1 */ - booke206_flush_tlb(env, BOOKE206_FLUSH_TLB1, 1); - } else { - /* flush all of TLB0 */ - booke206_flush_tlb(env, BOOKE206_FLUSH_TLB0, 0); - } - return; - } - - if (address & 0x8) { - /* flush TLB1 entries */ - booke206_invalidate_ea_tlb(env, 1, address); - tlb_flush(env, 1); - } else { - /* flush TLB0 entries */ - booke206_invalidate_ea_tlb(env, 0, address); - tlb_flush_page(env, address & MAS2_EPN_MASK); - } -} - -void helper_booke206_tlbilx0(target_ulong address) -{ - /* XXX missing LPID handling */ - booke206_flush_tlb(env, -1, 1); -} - -void helper_booke206_tlbilx1(target_ulong address) -{ - int i, j; - int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID); - ppcmas_tlb_t *tlb = env->tlb.tlbm; - int tlb_size; - - /* XXX missing LPID handling */ - for (i = 0; i < BOOKE206_MAX_TLBN; i++) { - tlb_size = booke206_tlb_size(env, i); - for (j = 0; j < tlb_size; j++) { - if (!(tlb[j].mas1 & MAS1_IPROT) && - ((tlb[j].mas1 & MAS1_TID_MASK) == tid)) { - tlb[j].mas1 &= ~MAS1_VALID; - } - } - tlb += booke206_tlb_size(env, i); - } - tlb_flush(env, 1); -} - -void helper_booke206_tlbilx3(target_ulong address) -{ - int i, j; - ppcmas_tlb_t *tlb; - int tid = (env->spr[SPR_BOOKE_MAS6] & MAS6_SPID); - int pid = tid >> MAS6_SPID_SHIFT; - int sgs = env->spr[SPR_BOOKE_MAS5] & MAS5_SGS; - int ind = (env->spr[SPR_BOOKE_MAS6] & MAS6_SIND) ? MAS1_IND : 0; - /* XXX check for unsupported isize and raise an invalid opcode then */ - int size = env->spr[SPR_BOOKE_MAS6] & MAS6_ISIZE_MASK; - /* XXX implement MAV2 handling */ - bool mav2 = false; - - /* XXX missing LPID handling */ - /* flush by pid and ea */ - for (i = 0; i < BOOKE206_MAX_TLBN; i++) { - int ways = booke206_tlb_ways(env, i); - - for (j = 0; j < ways; j++) { - tlb = booke206_get_tlbm(env, i, address, j); - if (!tlb) { - continue; - } - if ((ppcmas_tlb_check(env, tlb, NULL, address, pid) != 0) || - (tlb->mas1 & MAS1_IPROT) || - ((tlb->mas1 & MAS1_IND) != ind) || - ((tlb->mas8 & MAS8_TGS) != sgs)) { - continue; - } - if (mav2 && ((tlb->mas1 & MAS1_TSIZE_MASK) != size)) { - /* XXX only check when MMUCFG[TWC] || TLBnCFG[HES] */ - continue; - } - /* XXX e500mc doesn't match SAS, but other cores might */ - tlb->mas1 &= ~MAS1_VALID; - } - } - tlb_flush(env, 1); -} - -void helper_booke206_tlbflush(uint32_t type) -{ - int flags = 0; - - if (type & 2) { - flags |= BOOKE206_FLUSH_TLB1; - } - - if (type & 4) { - flags |= BOOKE206_FLUSH_TLB0; - } - - booke206_flush_tlb(env, flags, 1); -} #endif /* !CONFIG_USER_ONLY */ |