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authorThomas Huth <thuth@redhat.com>2016-10-11 08:56:52 +0200
committerThomas Huth <thuth@redhat.com>2016-12-20 21:52:12 +0100
commitfcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch)
tree2b450d96b01455df8ed908bf8f26ddc388a03380 /target-sparc/ldst_helper.c
parent82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff)
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target-sparc/ldst_helper.c')
-rw-r--r--target-sparc/ldst_helper.c1709
1 files changed, 0 insertions, 1709 deletions
diff --git a/target-sparc/ldst_helper.c b/target-sparc/ldst_helper.c
deleted file mode 100644
index de7d53ae20..0000000000
--- a/target-sparc/ldst_helper.c
+++ /dev/null
@@ -1,1709 +0,0 @@
-/*
- * Helpers for loads and stores
- *
- * Copyright (c) 2003-2005 Fabrice Bellard
- *
- * 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 "qemu/osdep.h"
-#include "cpu.h"
-#include "tcg.h"
-#include "exec/helper-proto.h"
-#include "exec/exec-all.h"
-#include "exec/cpu_ldst.h"
-#include "asi.h"
-
-//#define DEBUG_MMU
-//#define DEBUG_MXCC
-//#define DEBUG_UNALIGNED
-//#define DEBUG_UNASSIGNED
-//#define DEBUG_ASI
-//#define DEBUG_CACHE_CONTROL
-
-#ifdef DEBUG_MMU
-#define DPRINTF_MMU(fmt, ...) \
- do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF_MMU(fmt, ...) do {} while (0)
-#endif
-
-#ifdef DEBUG_MXCC
-#define DPRINTF_MXCC(fmt, ...) \
- do { printf("MXCC: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF_MXCC(fmt, ...) do {} while (0)
-#endif
-
-#ifdef DEBUG_ASI
-#define DPRINTF_ASI(fmt, ...) \
- do { printf("ASI: " fmt , ## __VA_ARGS__); } while (0)
-#endif
-
-#ifdef DEBUG_CACHE_CONTROL
-#define DPRINTF_CACHE_CONTROL(fmt, ...) \
- do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0)
-#endif
-
-#ifdef TARGET_SPARC64
-#ifndef TARGET_ABI32
-#define AM_CHECK(env1) ((env1)->pstate & PS_AM)
-#else
-#define AM_CHECK(env1) (1)
-#endif
-#endif
-
-#define QT0 (env->qt0)
-#define QT1 (env->qt1)
-
-#if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY)
-/* Calculates TSB pointer value for fault page size 8k or 64k */
-static uint64_t ultrasparc_tsb_pointer(uint64_t tsb_register,
- uint64_t tag_access_register,
- int page_size)
-{
- uint64_t tsb_base = tsb_register & ~0x1fffULL;
- int tsb_split = (tsb_register & 0x1000ULL) ? 1 : 0;
- int tsb_size = tsb_register & 0xf;
-
- /* discard lower 13 bits which hold tag access context */
- uint64_t tag_access_va = tag_access_register & ~0x1fffULL;
-
- /* now reorder bits */
- uint64_t tsb_base_mask = ~0x1fffULL;
- uint64_t va = tag_access_va;
-
- /* move va bits to correct position */
- if (page_size == 8*1024) {
- va >>= 9;
- } else if (page_size == 64*1024) {
- va >>= 12;
- }
-
- if (tsb_size) {
- tsb_base_mask <<= tsb_size;
- }
-
- /* calculate tsb_base mask and adjust va if split is in use */
- if (tsb_split) {
- if (page_size == 8*1024) {
- va &= ~(1ULL << (13 + tsb_size));
- } else if (page_size == 64*1024) {
- va |= (1ULL << (13 + tsb_size));
- }
- tsb_base_mask <<= 1;
- }
-
- return ((tsb_base & tsb_base_mask) | (va & ~tsb_base_mask)) & ~0xfULL;
-}
-
-/* Calculates tag target register value by reordering bits
- in tag access register */
-static uint64_t ultrasparc_tag_target(uint64_t tag_access_register)
-{
- return ((tag_access_register & 0x1fff) << 48) | (tag_access_register >> 22);
-}
-
-static void replace_tlb_entry(SparcTLBEntry *tlb,
- uint64_t tlb_tag, uint64_t tlb_tte,
- CPUSPARCState *env1)
-{
- target_ulong mask, size, va, offset;
-
- /* flush page range if translation is valid */
- if (TTE_IS_VALID(tlb->tte)) {
- CPUState *cs = CPU(sparc_env_get_cpu(env1));
-
- mask = 0xffffffffffffe000ULL;
- mask <<= 3 * ((tlb->tte >> 61) & 3);
- size = ~mask + 1;
-
- va = tlb->tag & mask;
-
- for (offset = 0; offset < size; offset += TARGET_PAGE_SIZE) {
- tlb_flush_page(cs, va + offset);
- }
- }
-
- tlb->tag = tlb_tag;
- tlb->tte = tlb_tte;
-}
-
-static void demap_tlb(SparcTLBEntry *tlb, target_ulong demap_addr,
- const char *strmmu, CPUSPARCState *env1)
-{
- unsigned int i;
- target_ulong mask;
- uint64_t context;
-
- int is_demap_context = (demap_addr >> 6) & 1;
-
- /* demap context */
- switch ((demap_addr >> 4) & 3) {
- case 0: /* primary */
- context = env1->dmmu.mmu_primary_context;
- break;
- case 1: /* secondary */
- context = env1->dmmu.mmu_secondary_context;
- break;
- case 2: /* nucleus */
- context = 0;
- break;
- case 3: /* reserved */
- default:
- return;
- }
-
- for (i = 0; i < 64; i++) {
- if (TTE_IS_VALID(tlb[i].tte)) {
-
- if (is_demap_context) {
- /* will remove non-global entries matching context value */
- if (TTE_IS_GLOBAL(tlb[i].tte) ||
- !tlb_compare_context(&tlb[i], context)) {
- continue;
- }
- } else {
- /* demap page
- will remove any entry matching VA */
- mask = 0xffffffffffffe000ULL;
- mask <<= 3 * ((tlb[i].tte >> 61) & 3);
-
- if (!compare_masked(demap_addr, tlb[i].tag, mask)) {
- continue;
- }
-
- /* entry should be global or matching context value */
- if (!TTE_IS_GLOBAL(tlb[i].tte) &&
- !tlb_compare_context(&tlb[i], context)) {
- continue;
- }
- }
-
- replace_tlb_entry(&tlb[i], 0, 0, env1);
-#ifdef DEBUG_MMU
- DPRINTF_MMU("%s demap invalidated entry [%02u]\n", strmmu, i);
- dump_mmu(stdout, fprintf, env1);
-#endif
- }
- }
-}
-
-static void replace_tlb_1bit_lru(SparcTLBEntry *tlb,
- uint64_t tlb_tag, uint64_t tlb_tte,
- const char *strmmu, CPUSPARCState *env1)
-{
- unsigned int i, replace_used;
-
- /* Try replacing invalid entry */
- for (i = 0; i < 64; i++) {
- if (!TTE_IS_VALID(tlb[i].tte)) {
- replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
-#ifdef DEBUG_MMU
- DPRINTF_MMU("%s lru replaced invalid entry [%i]\n", strmmu, i);
- dump_mmu(stdout, fprintf, env1);
-#endif
- return;
- }
- }
-
- /* All entries are valid, try replacing unlocked entry */
-
- for (replace_used = 0; replace_used < 2; ++replace_used) {
-
- /* Used entries are not replaced on first pass */
-
- for (i = 0; i < 64; i++) {
- if (!TTE_IS_LOCKED(tlb[i].tte) && !TTE_IS_USED(tlb[i].tte)) {
-
- replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1);
-#ifdef DEBUG_MMU
- DPRINTF_MMU("%s lru replaced unlocked %s entry [%i]\n",
- strmmu, (replace_used ? "used" : "unused"), i);
- dump_mmu(stdout, fprintf, env1);
-#endif
- return;
- }
- }
-
- /* Now reset used bit and search for unused entries again */
-
- for (i = 0; i < 64; i++) {
- TTE_SET_UNUSED(tlb[i].tte);
- }
- }
-
-#ifdef DEBUG_MMU
- DPRINTF_MMU("%s lru replacement failed: no entries available\n", strmmu);
-#endif
- /* error state? */
-}
-
-#endif
-
-#ifdef TARGET_SPARC64
-/* returns true if access using this ASI is to have address translated by MMU
- otherwise access is to raw physical address */
-/* TODO: check sparc32 bits */
-static inline int is_translating_asi(int asi)
-{
- /* Ultrasparc IIi translating asi
- - note this list is defined by cpu implementation
- */
- switch (asi) {
- case 0x04 ... 0x11:
- case 0x16 ... 0x19:
- case 0x1E ... 0x1F:
- case 0x24 ... 0x2C:
- case 0x70 ... 0x73:
- case 0x78 ... 0x79:
- case 0x80 ... 0xFF:
- return 1;
-
- default:
- return 0;
- }
-}
-
-static inline target_ulong address_mask(CPUSPARCState *env1, target_ulong addr)
-{
- if (AM_CHECK(env1)) {
- addr &= 0xffffffffULL;
- }
- return addr;
-}
-
-static inline target_ulong asi_address_mask(CPUSPARCState *env,
- int asi, target_ulong addr)
-{
- if (is_translating_asi(asi)) {
- addr = address_mask(env, addr);
- }
- return addr;
-}
-#endif
-
-static void do_check_align(CPUSPARCState *env, target_ulong addr,
- uint32_t align, uintptr_t ra)
-{
- if (addr & align) {
-#ifdef DEBUG_UNALIGNED
- printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
- "\n", addr, env->pc);
-#endif
- cpu_raise_exception_ra(env, TT_UNALIGNED, ra);
- }
-}
-
-void helper_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align)
-{
- do_check_align(env, addr, align, GETPC());
-}
-
-#if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && \
- defined(DEBUG_MXCC)
-static void dump_mxcc(CPUSPARCState *env)
-{
- printf("mxccdata: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
- "\n",
- env->mxccdata[0], env->mxccdata[1],
- env->mxccdata[2], env->mxccdata[3]);
- printf("mxccregs: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
- "\n"
- " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64
- "\n",
- env->mxccregs[0], env->mxccregs[1],
- env->mxccregs[2], env->mxccregs[3],
- env->mxccregs[4], env->mxccregs[5],
- env->mxccregs[6], env->mxccregs[7]);
-}
-#endif
-
-#if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \
- && defined(DEBUG_ASI)
-static void dump_asi(const char *txt, target_ulong addr, int asi, int size,
- uint64_t r1)
-{
- switch (size) {
- case 1:
- DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt,
- addr, asi, r1 & 0xff);
- break;
- case 2:
- DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt,
- addr, asi, r1 & 0xffff);
- break;
- case 4:
- DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt,
- addr, asi, r1 & 0xffffffff);
- break;
- case 8:
- DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt,
- addr, asi, r1);
- break;
- }
-}
-#endif
-
-#ifndef TARGET_SPARC64
-#ifndef CONFIG_USER_ONLY
-
-
-/* Leon3 cache control */
-
-static void leon3_cache_control_st(CPUSPARCState *env, target_ulong addr,
- uint64_t val, int size)
-{
- DPRINTF_CACHE_CONTROL("st addr:%08x, val:%" PRIx64 ", size:%d\n",
- addr, val, size);
-
- if (size != 4) {
- DPRINTF_CACHE_CONTROL("32bits only\n");
- return;
- }
-
- switch (addr) {
- case 0x00: /* Cache control */
-
- /* These values must always be read as zeros */
- val &= ~CACHE_CTRL_FD;
- val &= ~CACHE_CTRL_FI;
- val &= ~CACHE_CTRL_IB;
- val &= ~CACHE_CTRL_IP;
- val &= ~CACHE_CTRL_DP;
-
- env->cache_control = val;
- break;
- case 0x04: /* Instruction cache configuration */
- case 0x08: /* Data cache configuration */
- /* Read Only */
- break;
- default:
- DPRINTF_CACHE_CONTROL("write unknown register %08x\n", addr);
- break;
- };
-}
-
-static uint64_t leon3_cache_control_ld(CPUSPARCState *env, target_ulong addr,
- int size)
-{
- uint64_t ret = 0;
-
- if (size != 4) {
- DPRINTF_CACHE_CONTROL("32bits only\n");
- return 0;
- }
-
- switch (addr) {
- case 0x00: /* Cache control */
- ret = env->cache_control;
- break;
-
- /* Configuration registers are read and only always keep those
- predefined values */
-
- case 0x04: /* Instruction cache configuration */
- ret = 0x10220000;
- break;
- case 0x08: /* Data cache configuration */
- ret = 0x18220000;
- break;
- default:
- DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr);
- break;
- };
- DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n",
- addr, ret, size);
- return ret;
-}
-
-uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
- int sign = memop & MO_SIGN;
- CPUState *cs = CPU(sparc_env_get_cpu(env));
- uint64_t ret = 0;
-#if defined(DEBUG_MXCC) || defined(DEBUG_ASI)
- uint32_t last_addr = addr;
-#endif
-
- do_check_align(env, addr, size - 1, GETPC());
- switch (asi) {
- case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
- /* case ASI_LEON_CACHEREGS: Leon3 cache control */
- switch (addr) {
- case 0x00: /* Leon3 Cache Control */
- case 0x08: /* Leon3 Instruction Cache config */
- case 0x0C: /* Leon3 Date Cache config */
- if (env->def->features & CPU_FEATURE_CACHE_CTRL) {
- ret = leon3_cache_control_ld(env, addr, size);
- }
- break;
- case 0x01c00a00: /* MXCC control register */
- if (size == 8) {
- ret = env->mxccregs[3];
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00a04: /* MXCC control register */
- if (size == 4) {
- ret = env->mxccregs[3];
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00c00: /* Module reset register */
- if (size == 8) {
- ret = env->mxccregs[5];
- /* should we do something here? */
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00f00: /* MBus port address register */
- if (size == 8) {
- ret = env->mxccregs[7];
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- default:
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented address, size: %d\n", addr,
- size);
- break;
- }
- DPRINTF_MXCC("asi = %d, size = %d, sign = %d, "
- "addr = %08x -> ret = %" PRIx64 ","
- "addr = %08x\n", asi, size, sign, last_addr, ret, addr);
-#ifdef DEBUG_MXCC
- dump_mxcc(env);
-#endif
- break;
- case ASI_M_FLUSH_PROBE: /* SuperSparc MMU probe */
- case ASI_LEON_MMUFLUSH: /* LEON3 MMU probe */
- {
- int mmulev;
-
- mmulev = (addr >> 8) & 15;
- if (mmulev > 4) {
- ret = 0;
- } else {
- ret = mmu_probe(env, addr, mmulev);
- }
- DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n",
- addr, mmulev, ret);
- }
- break;
- case ASI_M_MMUREGS: /* SuperSparc MMU regs */
- case ASI_LEON_MMUREGS: /* LEON3 MMU regs */
- {
- int reg = (addr >> 8) & 0x1f;
-
- ret = env->mmuregs[reg];
- if (reg == 3) { /* Fault status cleared on read */
- env->mmuregs[3] = 0;
- } else if (reg == 0x13) { /* Fault status read */
- ret = env->mmuregs[3];
- } else if (reg == 0x14) { /* Fault address read */
- ret = env->mmuregs[4];
- }
- DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret);
- }
- break;
- case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
- case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
- case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
- break;
- case ASI_KERNELTXT: /* Supervisor code access */
- switch (size) {
- case 1:
- ret = cpu_ldub_code(env, addr);
- break;
- case 2:
- ret = cpu_lduw_code(env, addr);
- break;
- default:
- case 4:
- ret = cpu_ldl_code(env, addr);
- break;
- case 8:
- ret = cpu_ldq_code(env, addr);
- break;
- }
- break;
- case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */
- case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */
- case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */
- case ASI_M_DATAC_DATA: /* SparcStation 5 D-cache data */
- break;
- case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
- switch (size) {
- case 1:
- ret = ldub_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32));
- break;
- case 2:
- ret = lduw_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32));
- break;
- default:
- case 4:
- ret = ldl_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32));
- break;
- case 8:
- ret = ldq_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32));
- break;
- }
- break;
- case 0x30: /* Turbosparc secondary cache diagnostic */
- case 0x31: /* Turbosparc RAM snoop */
- case 0x32: /* Turbosparc page table descriptor diagnostic */
- case 0x39: /* data cache diagnostic register */
- ret = 0;
- break;
- case 0x38: /* SuperSPARC MMU Breakpoint Control Registers */
- {
- int reg = (addr >> 8) & 3;
-
- switch (reg) {
- case 0: /* Breakpoint Value (Addr) */
- ret = env->mmubpregs[reg];
- break;
- case 1: /* Breakpoint Mask */
- ret = env->mmubpregs[reg];
- break;
- case 2: /* Breakpoint Control */
- ret = env->mmubpregs[reg];
- break;
- case 3: /* Breakpoint Status */
- ret = env->mmubpregs[reg];
- env->mmubpregs[reg] = 0ULL;
- break;
- }
- DPRINTF_MMU("read breakpoint reg[%d] 0x%016" PRIx64 "\n", reg,
- ret);
- }
- break;
- case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
- ret = env->mmubpctrv;
- break;
- case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
- ret = env->mmubpctrc;
- break;
- case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
- ret = env->mmubpctrs;
- break;
- case 0x4c: /* SuperSPARC MMU Breakpoint Action */
- ret = env->mmubpaction;
- break;
- case ASI_USERTXT: /* User code access, XXX */
- default:
- cpu_unassigned_access(cs, addr, false, false, asi, size);
- ret = 0;
- break;
-
- case ASI_USERDATA: /* User data access */
- case ASI_KERNELDATA: /* Supervisor data access */
- case ASI_P: /* Implicit primary context data access (v9 only?) */
- case ASI_M_BYPASS: /* MMU passthrough */
- case ASI_LEON_BYPASS: /* LEON MMU passthrough */
- /* These are always handled inline. */
- g_assert_not_reached();
- }
- if (sign) {
- switch (size) {
- case 1:
- ret = (int8_t) ret;
- break;
- case 2:
- ret = (int16_t) ret;
- break;
- case 4:
- ret = (int32_t) ret;
- break;
- default:
- break;
- }
- }
-#ifdef DEBUG_ASI
- dump_asi("read ", last_addr, asi, size, ret);
-#endif
- return ret;
-}
-
-void helper_st_asi(CPUSPARCState *env, target_ulong addr, uint64_t val,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
-
- do_check_align(env, addr, size - 1, GETPC());
- switch (asi) {
- case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */
- /* case ASI_LEON_CACHEREGS: Leon3 cache control */
- switch (addr) {
- case 0x00: /* Leon3 Cache Control */
- case 0x08: /* Leon3 Instruction Cache config */
- case 0x0C: /* Leon3 Date Cache config */
- if (env->def->features & CPU_FEATURE_CACHE_CTRL) {
- leon3_cache_control_st(env, addr, val, size);
- }
- break;
-
- case 0x01c00000: /* MXCC stream data register 0 */
- if (size == 8) {
- env->mxccdata[0] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00008: /* MXCC stream data register 1 */
- if (size == 8) {
- env->mxccdata[1] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00010: /* MXCC stream data register 2 */
- if (size == 8) {
- env->mxccdata[2] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00018: /* MXCC stream data register 3 */
- if (size == 8) {
- env->mxccdata[3] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00100: /* MXCC stream source */
- if (size == 8) {
- env->mxccregs[0] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- env->mxccdata[0] = ldq_phys(cs->as,
- (env->mxccregs[0] & 0xffffffffULL) +
- 0);
- env->mxccdata[1] = ldq_phys(cs->as,
- (env->mxccregs[0] & 0xffffffffULL) +
- 8);
- env->mxccdata[2] = ldq_phys(cs->as,
- (env->mxccregs[0] & 0xffffffffULL) +
- 16);
- env->mxccdata[3] = ldq_phys(cs->as,
- (env->mxccregs[0] & 0xffffffffULL) +
- 24);
- break;
- case 0x01c00200: /* MXCC stream destination */
- if (size == 8) {
- env->mxccregs[1] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 0,
- env->mxccdata[0]);
- stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 8,
- env->mxccdata[1]);
- stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 16,
- env->mxccdata[2]);
- stq_phys(cs->as, (env->mxccregs[1] & 0xffffffffULL) + 24,
- env->mxccdata[3]);
- break;
- case 0x01c00a00: /* MXCC control register */
- if (size == 8) {
- env->mxccregs[3] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00a04: /* MXCC control register */
- if (size == 4) {
- env->mxccregs[3] = (env->mxccregs[3] & 0xffffffff00000000ULL)
- | val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00e00: /* MXCC error register */
- /* writing a 1 bit clears the error */
- if (size == 8) {
- env->mxccregs[6] &= ~val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- case 0x01c00f00: /* MBus port address register */
- if (size == 8) {
- env->mxccregs[7] = val;
- } else {
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented access size: %d\n", addr,
- size);
- }
- break;
- default:
- qemu_log_mask(LOG_UNIMP,
- "%08x: unimplemented address, size: %d\n", addr,
- size);
- break;
- }
- DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %" PRIx64 "\n",
- asi, size, addr, val);
-#ifdef DEBUG_MXCC
- dump_mxcc(env);
-#endif
- break;
- case ASI_M_FLUSH_PROBE: /* SuperSparc MMU flush */
- case ASI_LEON_MMUFLUSH: /* LEON3 MMU flush */
- {
- int mmulev;
-
- mmulev = (addr >> 8) & 15;
- DPRINTF_MMU("mmu flush level %d\n", mmulev);
- switch (mmulev) {
- case 0: /* flush page */
- tlb_flush_page(CPU(cpu), addr & 0xfffff000);
- break;
- case 1: /* flush segment (256k) */
- case 2: /* flush region (16M) */
- case 3: /* flush context (4G) */
- case 4: /* flush entire */
- tlb_flush(CPU(cpu), 1);
- break;
- default:
- break;
- }
-#ifdef DEBUG_MMU
- dump_mmu(stdout, fprintf, env);
-#endif
- }
- break;
- case ASI_M_MMUREGS: /* write MMU regs */
- case ASI_LEON_MMUREGS: /* LEON3 write MMU regs */
- {
- int reg = (addr >> 8) & 0x1f;
- uint32_t oldreg;
-
- oldreg = env->mmuregs[reg];
- switch (reg) {
- case 0: /* Control Register */
- env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) |
- (val & 0x00ffffff);
- /* Mappings generated during no-fault mode
- are invalid in normal mode. */
- if ((oldreg ^ env->mmuregs[reg])
- & (MMU_NF | env->def->mmu_bm)) {
- tlb_flush(CPU(cpu), 1);
- }
- break;
- case 1: /* Context Table Pointer Register */
- env->mmuregs[reg] = val & env->def->mmu_ctpr_mask;
- break;
- case 2: /* Context Register */
- env->mmuregs[reg] = val & env->def->mmu_cxr_mask;
- if (oldreg != env->mmuregs[reg]) {
- /* we flush when the MMU context changes because
- QEMU has no MMU context support */
- tlb_flush(CPU(cpu), 1);
- }
- break;
- case 3: /* Synchronous Fault Status Register with Clear */
- case 4: /* Synchronous Fault Address Register */
- break;
- case 0x10: /* TLB Replacement Control Register */
- env->mmuregs[reg] = val & env->def->mmu_trcr_mask;
- break;
- case 0x13: /* Synchronous Fault Status Register with Read
- and Clear */
- env->mmuregs[3] = val & env->def->mmu_sfsr_mask;
- break;
- case 0x14: /* Synchronous Fault Address Register */
- env->mmuregs[4] = val;
- break;
- default:
- env->mmuregs[reg] = val;
- break;
- }
- if (oldreg != env->mmuregs[reg]) {
- DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n",
- reg, oldreg, env->mmuregs[reg]);
- }
-#ifdef DEBUG_MMU
- dump_mmu(stdout, fprintf, env);
-#endif
- }
- break;
- case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */
- case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */
- case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */
- break;
- case ASI_M_TXTC_TAG: /* I-cache tag */
- case ASI_M_TXTC_DATA: /* I-cache data */
- case ASI_M_DATAC_TAG: /* D-cache tag */
- case ASI_M_DATAC_DATA: /* D-cache data */
- case ASI_M_FLUSH_PAGE: /* I/D-cache flush page */
- case ASI_M_FLUSH_SEG: /* I/D-cache flush segment */
- case ASI_M_FLUSH_REGION: /* I/D-cache flush region */
- case ASI_M_FLUSH_CTX: /* I/D-cache flush context */
- case ASI_M_FLUSH_USER: /* I/D-cache flush user */
- break;
- case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */
- {
- switch (size) {
- case 1:
- stb_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32), val);
- break;
- case 2:
- stw_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32), val);
- break;
- case 4:
- default:
- stl_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32), val);
- break;
- case 8:
- stq_phys(cs->as, (hwaddr)addr
- | ((hwaddr)(asi & 0xf) << 32), val);
- break;
- }
- }
- break;
- case 0x30: /* store buffer tags or Turbosparc secondary cache diagnostic */
- case 0x31: /* store buffer data, Ross RT620 I-cache flush or
- Turbosparc snoop RAM */
- case 0x32: /* store buffer control or Turbosparc page table
- descriptor diagnostic */
- case 0x36: /* I-cache flash clear */
- case 0x37: /* D-cache flash clear */
- break;
- case 0x38: /* SuperSPARC MMU Breakpoint Control Registers*/
- {
- int reg = (addr >> 8) & 3;
-
- switch (reg) {
- case 0: /* Breakpoint Value (Addr) */
- env->mmubpregs[reg] = (val & 0xfffffffffULL);
- break;
- case 1: /* Breakpoint Mask */
- env->mmubpregs[reg] = (val & 0xfffffffffULL);
- break;
- case 2: /* Breakpoint Control */
- env->mmubpregs[reg] = (val & 0x7fULL);
- break;
- case 3: /* Breakpoint Status */
- env->mmubpregs[reg] = (val & 0xfULL);
- break;
- }
- DPRINTF_MMU("write breakpoint reg[%d] 0x%016x\n", reg,
- env->mmuregs[reg]);
- }
- break;
- case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */
- env->mmubpctrv = val & 0xffffffff;
- break;
- case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */
- env->mmubpctrc = val & 0x3;
- break;
- case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */
- env->mmubpctrs = val & 0x3;
- break;
- case 0x4c: /* SuperSPARC MMU Breakpoint Action */
- env->mmubpaction = val & 0x1fff;
- break;
- case ASI_USERTXT: /* User code access, XXX */
- case ASI_KERNELTXT: /* Supervisor code access, XXX */
- default:
- cpu_unassigned_access(CPU(sparc_env_get_cpu(env)),
- addr, true, false, asi, size);
- break;
-
- case ASI_USERDATA: /* User data access */
- case ASI_KERNELDATA: /* Supervisor data access */
- case ASI_P:
- case ASI_M_BYPASS: /* MMU passthrough */
- case ASI_LEON_BYPASS: /* LEON MMU passthrough */
- case ASI_M_BCOPY: /* Block copy, sta access */
- case ASI_M_BFILL: /* Block fill, stda access */
- /* These are always handled inline. */
- g_assert_not_reached();
- }
-#ifdef DEBUG_ASI
- dump_asi("write", addr, asi, size, val);
-#endif
-}
-
-#endif /* CONFIG_USER_ONLY */
-#else /* TARGET_SPARC64 */
-
-#ifdef CONFIG_USER_ONLY
-uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
- int sign = memop & MO_SIGN;
- uint64_t ret = 0;
-
- if (asi < 0x80) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
- do_check_align(env, addr, size - 1, GETPC());
- addr = asi_address_mask(env, asi, addr);
-
- switch (asi) {
- case ASI_PNF: /* Primary no-fault */
- case ASI_PNFL: /* Primary no-fault LE */
- case ASI_SNF: /* Secondary no-fault */
- case ASI_SNFL: /* Secondary no-fault LE */
- if (page_check_range(addr, size, PAGE_READ) == -1) {
- ret = 0;
- break;
- }
- switch (size) {
- case 1:
- ret = cpu_ldub_data(env, addr);
- break;
- case 2:
- ret = cpu_lduw_data(env, addr);
- break;
- case 4:
- ret = cpu_ldl_data(env, addr);
- break;
- case 8:
- ret = cpu_ldq_data(env, addr);
- break;
- default:
- g_assert_not_reached();
- }
- break;
- break;
-
- case ASI_P: /* Primary */
- case ASI_PL: /* Primary LE */
- case ASI_S: /* Secondary */
- case ASI_SL: /* Secondary LE */
- /* These are always handled inline. */
- g_assert_not_reached();
-
- default:
- cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
- }
-
- /* Convert from little endian */
- switch (asi) {
- case ASI_PNFL: /* Primary no-fault LE */
- case ASI_SNFL: /* Secondary no-fault LE */
- switch (size) {
- case 2:
- ret = bswap16(ret);
- break;
- case 4:
- ret = bswap32(ret);
- break;
- case 8:
- ret = bswap64(ret);
- break;
- }
- }
-
- /* Convert to signed number */
- if (sign) {
- switch (size) {
- case 1:
- ret = (int8_t) ret;
- break;
- case 2:
- ret = (int16_t) ret;
- break;
- case 4:
- ret = (int32_t) ret;
- break;
- }
- }
-#ifdef DEBUG_ASI
- dump_asi("read", addr, asi, size, ret);
-#endif
- return ret;
-}
-
-void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
-#ifdef DEBUG_ASI
- dump_asi("write", addr, asi, size, val);
-#endif
- if (asi < 0x80) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
- do_check_align(env, addr, size - 1, GETPC());
-
- switch (asi) {
- case ASI_P: /* Primary */
- case ASI_PL: /* Primary LE */
- case ASI_S: /* Secondary */
- case ASI_SL: /* Secondary LE */
- /* These are always handled inline. */
- g_assert_not_reached();
-
- case ASI_PNF: /* Primary no-fault, RO */
- case ASI_SNF: /* Secondary no-fault, RO */
- case ASI_PNFL: /* Primary no-fault LE, RO */
- case ASI_SNFL: /* Secondary no-fault LE, RO */
- default:
- cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC());
- }
-}
-
-#else /* CONFIG_USER_ONLY */
-
-uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
- int sign = memop & MO_SIGN;
- CPUState *cs = CPU(sparc_env_get_cpu(env));
- uint64_t ret = 0;
-#if defined(DEBUG_ASI)
- target_ulong last_addr = addr;
-#endif
-
- asi &= 0xff;
-
- if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
- || (cpu_has_hypervisor(env)
- && asi >= 0x30 && asi < 0x80
- && !(env->hpstate & HS_PRIV))) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
-
- do_check_align(env, addr, size - 1, GETPC());
- addr = asi_address_mask(env, asi, addr);
-
- switch (asi) {
- case ASI_PNF:
- case ASI_PNFL:
- case ASI_SNF:
- case ASI_SNFL:
- {
- TCGMemOpIdx oi;
- int idx = (env->pstate & PS_PRIV
- ? (asi & 1 ? MMU_KERNEL_SECONDARY_IDX : MMU_KERNEL_IDX)
- : (asi & 1 ? MMU_USER_SECONDARY_IDX : MMU_USER_IDX));
-
- if (cpu_get_phys_page_nofault(env, addr, idx) == -1ULL) {
-#ifdef DEBUG_ASI
- dump_asi("read ", last_addr, asi, size, ret);
-#endif
- /* exception_index is set in get_physical_address_data. */
- cpu_raise_exception_ra(env, cs->exception_index, GETPC());
- }
- oi = make_memop_idx(memop, idx);
- switch (size) {
- case 1:
- ret = helper_ret_ldub_mmu(env, addr, oi, GETPC());
- break;
- case 2:
- if (asi & 8) {
- ret = helper_le_lduw_mmu(env, addr, oi, GETPC());
- } else {
- ret = helper_be_lduw_mmu(env, addr, oi, GETPC());
- }
- break;
- case 4:
- if (asi & 8) {
- ret = helper_le_ldul_mmu(env, addr, oi, GETPC());
- } else {
- ret = helper_be_ldul_mmu(env, addr, oi, GETPC());
- }
- break;
- case 8:
- if (asi & 8) {
- ret = helper_le_ldq_mmu(env, addr, oi, GETPC());
- } else {
- ret = helper_be_ldq_mmu(env, addr, oi, GETPC());
- }
- break;
- default:
- g_assert_not_reached();
- }
- }
- break;
-
- case ASI_AIUP: /* As if user primary */
- case ASI_AIUS: /* As if user secondary */
- case ASI_AIUPL: /* As if user primary LE */
- case ASI_AIUSL: /* As if user secondary LE */
- case ASI_P: /* Primary */
- case ASI_S: /* Secondary */
- case ASI_PL: /* Primary LE */
- case ASI_SL: /* Secondary LE */
- case ASI_REAL: /* Bypass */
- case ASI_REAL_IO: /* Bypass, non-cacheable */
- case ASI_REAL_L: /* Bypass LE */
- case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
- case ASI_N: /* Nucleus */
- case ASI_NL: /* Nucleus Little Endian (LE) */
- case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
- case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
- case ASI_TWINX_AIUP: /* As if user primary, twinx */
- case ASI_TWINX_AIUS: /* As if user secondary, twinx */
- case ASI_TWINX_REAL: /* Real address, twinx */
- case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
- case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
- case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
- case ASI_TWINX_N: /* Nucleus, twinx */
- case ASI_TWINX_NL: /* Nucleus, twinx, LE */
- /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
- case ASI_TWINX_P: /* Primary, twinx */
- case ASI_TWINX_PL: /* Primary, twinx, LE */
- case ASI_TWINX_S: /* Secondary, twinx */
- case ASI_TWINX_SL: /* Secondary, twinx, LE */
- /* These are always handled inline. */
- g_assert_not_reached();
-
- case ASI_UPA_CONFIG: /* UPA config */
- /* XXX */
- break;
- case ASI_LSU_CONTROL: /* LSU */
- ret = env->lsu;
- break;
- case ASI_IMMU: /* I-MMU regs */
- {
- int reg = (addr >> 3) & 0xf;
-
- if (reg == 0) {
- /* I-TSB Tag Target register */
- ret = ultrasparc_tag_target(env->immu.tag_access);
- } else {
- ret = env->immuregs[reg];
- }
-
- break;
- }
- case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer */
- {
- /* env->immuregs[5] holds I-MMU TSB register value
- env->immuregs[6] holds I-MMU Tag Access register value */
- ret = ultrasparc_tsb_pointer(env->immu.tsb, env->immu.tag_access,
- 8*1024);
- break;
- }
- case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer */
- {
- /* env->immuregs[5] holds I-MMU TSB register value
- env->immuregs[6] holds I-MMU Tag Access register value */
- ret = ultrasparc_tsb_pointer(env->immu.tsb, env->immu.tag_access,
- 64*1024);
- break;
- }
- case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
- {
- int reg = (addr >> 3) & 0x3f;
-
- ret = env->itlb[reg].tte;
- break;
- }
- case ASI_ITLB_TAG_READ: /* I-MMU tag read */
- {
- int reg = (addr >> 3) & 0x3f;
-
- ret = env->itlb[reg].tag;
- break;
- }
- case ASI_DMMU: /* D-MMU regs */
- {
- int reg = (addr >> 3) & 0xf;
-
- if (reg == 0) {
- /* D-TSB Tag Target register */
- ret = ultrasparc_tag_target(env->dmmu.tag_access);
- } else {
- ret = env->dmmuregs[reg];
- }
- break;
- }
- case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer */
- {
- /* env->dmmuregs[5] holds D-MMU TSB register value
- env->dmmuregs[6] holds D-MMU Tag Access register value */
- ret = ultrasparc_tsb_pointer(env->dmmu.tsb, env->dmmu.tag_access,
- 8*1024);
- break;
- }
- case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer */
- {
- /* env->dmmuregs[5] holds D-MMU TSB register value
- env->dmmuregs[6] holds D-MMU Tag Access register value */
- ret = ultrasparc_tsb_pointer(env->dmmu.tsb, env->dmmu.tag_access,
- 64*1024);
- break;
- }
- case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
- {
- int reg = (addr >> 3) & 0x3f;
-
- ret = env->dtlb[reg].tte;
- break;
- }
- case ASI_DTLB_TAG_READ: /* D-MMU tag read */
- {
- int reg = (addr >> 3) & 0x3f;
-
- ret = env->dtlb[reg].tag;
- break;
- }
- case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
- break;
- case ASI_INTR_RECEIVE: /* Interrupt data receive */
- ret = env->ivec_status;
- break;
- case ASI_INTR_R: /* Incoming interrupt vector, RO */
- {
- int reg = (addr >> 4) & 0x3;
- if (reg < 3) {
- ret = env->ivec_data[reg];
- }
- 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 */
- case ASI_AFSR: /* E-cache asynchronous fault status */
- case ASI_AFAR: /* E-cache asynchronous fault address */
- case ASI_EC_TAG_DATA: /* E-cache tag data */
- case ASI_IC_INSTR: /* I-cache instruction access */
- case ASI_IC_TAG: /* I-cache tag access */
- case ASI_IC_PRE_DECODE: /* I-cache predecode */
- case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
- case ASI_EC_W: /* E-cache tag */
- case ASI_EC_R: /* E-cache tag */
- break;
- case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer */
- case ASI_ITLB_DATA_IN: /* I-MMU data in, WO */
- case ASI_IMMU_DEMAP: /* I-MMU demap, WO */
- case ASI_DTLB_DATA_IN: /* D-MMU data in, WO */
- case ASI_DMMU_DEMAP: /* D-MMU demap, WO */
- case ASI_INTR_W: /* Interrupt vector, WO */
- default:
- cpu_unassigned_access(cs, addr, false, false, 1, size);
- ret = 0;
- break;
- }
-
- /* Convert to signed number */
- if (sign) {
- switch (size) {
- case 1:
- ret = (int8_t) ret;
- break;
- case 2:
- ret = (int16_t) ret;
- break;
- case 4:
- ret = (int32_t) ret;
- break;
- default:
- break;
- }
- }
-#ifdef DEBUG_ASI
- dump_asi("read ", last_addr, asi, size, ret);
-#endif
- return ret;
-}
-
-void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val,
- int asi, uint32_t memop)
-{
- int size = 1 << (memop & MO_SIZE);
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
-
-#ifdef DEBUG_ASI
- dump_asi("write", addr, asi, size, val);
-#endif
-
- asi &= 0xff;
-
- if ((asi < 0x80 && (env->pstate & PS_PRIV) == 0)
- || (cpu_has_hypervisor(env)
- && asi >= 0x30 && asi < 0x80
- && !(env->hpstate & HS_PRIV))) {
- cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC());
- }
-
- do_check_align(env, addr, size - 1, GETPC());
- addr = asi_address_mask(env, asi, addr);
-
- switch (asi) {
- case ASI_AIUP: /* As if user primary */
- case ASI_AIUS: /* As if user secondary */
- case ASI_AIUPL: /* As if user primary LE */
- case ASI_AIUSL: /* As if user secondary LE */
- case ASI_P: /* Primary */
- case ASI_S: /* Secondary */
- case ASI_PL: /* Primary LE */
- case ASI_SL: /* Secondary LE */
- case ASI_REAL: /* Bypass */
- case ASI_REAL_IO: /* Bypass, non-cacheable */
- case ASI_REAL_L: /* Bypass LE */
- case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */
- case ASI_N: /* Nucleus */
- case ASI_NL: /* Nucleus Little Endian (LE) */
- case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */
- case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */
- case ASI_TWINX_AIUP: /* As if user primary, twinx */
- case ASI_TWINX_AIUS: /* As if user secondary, twinx */
- case ASI_TWINX_REAL: /* Real address, twinx */
- case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */
- case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */
- case ASI_TWINX_REAL_L: /* Real address, twinx, LE */
- case ASI_TWINX_N: /* Nucleus, twinx */
- case ASI_TWINX_NL: /* Nucleus, twinx, LE */
- /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */
- case ASI_TWINX_P: /* Primary, twinx */
- case ASI_TWINX_PL: /* Primary, twinx, LE */
- case ASI_TWINX_S: /* Secondary, twinx */
- case ASI_TWINX_SL: /* Secondary, twinx, LE */
- /* These are always handled inline. */
- g_assert_not_reached();
-
- case ASI_UPA_CONFIG: /* UPA config */
- /* XXX */
- return;
- case ASI_LSU_CONTROL: /* LSU */
- env->lsu = val & (DMMU_E | IMMU_E);
- return;
- case ASI_IMMU: /* I-MMU regs */
- {
- int reg = (addr >> 3) & 0xf;
- uint64_t oldreg;
-
- oldreg = env->immuregs[reg];
- switch (reg) {
- case 0: /* RO */
- return;
- case 1: /* Not in I-MMU */
- case 2:
- return;
- case 3: /* SFSR */
- if ((val & 1) == 0) {
- val = 0; /* Clear SFSR */
- }
- env->immu.sfsr = val;
- break;
- case 4: /* RO */
- return;
- case 5: /* TSB access */
- DPRINTF_MMU("immu TSB write: 0x%016" PRIx64 " -> 0x%016"
- PRIx64 "\n", env->immu.tsb, val);
- env->immu.tsb = val;
- break;
- case 6: /* Tag access */
- env->immu.tag_access = val;
- break;
- case 7:
- case 8:
- return;
- default:
- break;
- }
-
- if (oldreg != env->immuregs[reg]) {
- DPRINTF_MMU("immu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
- PRIx64 "\n", reg, oldreg, env->immuregs[reg]);
- }
-#ifdef DEBUG_MMU
- dump_mmu(stdout, fprintf, env);
-#endif
- return;
- }
- case ASI_ITLB_DATA_IN: /* I-MMU data in */
- replace_tlb_1bit_lru(env->itlb, env->immu.tag_access, val, "immu", env);
- return;
- case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */
- {
- /* TODO: auto demap */
-
- unsigned int i = (addr >> 3) & 0x3f;
-
- replace_tlb_entry(&env->itlb[i], env->immu.tag_access, val, env);
-
-#ifdef DEBUG_MMU
- DPRINTF_MMU("immu data access replaced entry [%i]\n", i);
- dump_mmu(stdout, fprintf, env);
-#endif
- return;
- }
- case ASI_IMMU_DEMAP: /* I-MMU demap */
- demap_tlb(env->itlb, addr, "immu", env);
- return;
- case ASI_DMMU: /* D-MMU regs */
- {
- int reg = (addr >> 3) & 0xf;
- uint64_t oldreg;
-
- oldreg = env->dmmuregs[reg];
- switch (reg) {
- case 0: /* RO */
- case 4:
- return;
- case 3: /* SFSR */
- if ((val & 1) == 0) {
- val = 0; /* Clear SFSR, Fault address */
- env->dmmu.sfar = 0;
- }
- env->dmmu.sfsr = val;
- break;
- case 1: /* Primary context */
- env->dmmu.mmu_primary_context = val;
- /* can be optimized to only flush MMU_USER_IDX
- and MMU_KERNEL_IDX entries */
- tlb_flush(CPU(cpu), 1);
- break;
- case 2: /* Secondary context */
- env->dmmu.mmu_secondary_context = val;
- /* can be optimized to only flush MMU_USER_SECONDARY_IDX
- and MMU_KERNEL_SECONDARY_IDX entries */
- tlb_flush(CPU(cpu), 1);
- break;
- case 5: /* TSB access */
- DPRINTF_MMU("dmmu TSB write: 0x%016" PRIx64 " -> 0x%016"
- PRIx64 "\n", env->dmmu.tsb, val);
- env->dmmu.tsb = val;
- break;
- case 6: /* Tag access */
- env->dmmu.tag_access = val;
- break;
- case 7: /* Virtual Watchpoint */
- case 8: /* Physical Watchpoint */
- default:
- env->dmmuregs[reg] = val;
- break;
- }
-
- if (oldreg != env->dmmuregs[reg]) {
- DPRINTF_MMU("dmmu change reg[%d]: 0x%016" PRIx64 " -> 0x%016"
- PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]);
- }
-#ifdef DEBUG_MMU
- dump_mmu(stdout, fprintf, env);
-#endif
- return;
- }
- case ASI_DTLB_DATA_IN: /* D-MMU data in */
- replace_tlb_1bit_lru(env->dtlb, env->dmmu.tag_access, val, "dmmu", env);
- return;
- case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */
- {
- unsigned int i = (addr >> 3) & 0x3f;
-
- replace_tlb_entry(&env->dtlb[i], env->dmmu.tag_access, val, env);
-
-#ifdef DEBUG_MMU
- DPRINTF_MMU("dmmu data access replaced entry [%i]\n", i);
- dump_mmu(stdout, fprintf, env);
-#endif
- return;
- }
- case ASI_DMMU_DEMAP: /* D-MMU demap */
- demap_tlb(env->dtlb, addr, "dmmu", env);
- return;
- case ASI_INTR_RECEIVE: /* Interrupt data receive */
- env->ivec_status = val & 0x20;
- return;
- case ASI_DCACHE_DATA: /* D-cache data */
- case ASI_DCACHE_TAG: /* D-cache tag access */
- case ASI_ESTATE_ERROR_EN: /* E-cache error enable */
- case ASI_AFSR: /* E-cache asynchronous fault status */
- case ASI_AFAR: /* E-cache asynchronous fault address */
- case ASI_EC_TAG_DATA: /* E-cache tag data */
- case ASI_IC_INSTR: /* I-cache instruction access */
- case ASI_IC_TAG: /* I-cache tag access */
- case ASI_IC_PRE_DECODE: /* I-cache predecode */
- case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */
- case ASI_EC_W: /* E-cache tag */
- case ASI_EC_R: /* E-cache tag */
- return;
- case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer, RO */
- case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer, RO */
- case ASI_ITLB_TAG_READ: /* I-MMU tag read, RO */
- case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer, RO */
- case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer, RO */
- case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer, RO */
- case ASI_DTLB_TAG_READ: /* D-MMU tag read, RO */
- case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */
- case ASI_INTR_R: /* Incoming interrupt vector, RO */
- case ASI_PNF: /* Primary no-fault, RO */
- case ASI_SNF: /* Secondary no-fault, RO */
- case ASI_PNFL: /* Primary no-fault LE, RO */
- case ASI_SNFL: /* Secondary no-fault LE, RO */
- default:
- cpu_unassigned_access(cs, addr, true, false, 1, size);
- return;
- }
-}
-#endif /* CONFIG_USER_ONLY */
-#endif /* TARGET_SPARC64 */
-
-#if !defined(CONFIG_USER_ONLY)
-#ifndef TARGET_SPARC64
-void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr,
- bool is_write, bool is_exec, int is_asi,
- unsigned size)
-{
- SPARCCPU *cpu = SPARC_CPU(cs);
- CPUSPARCState *env = &cpu->env;
- int fault_type;
-
-#ifdef DEBUG_UNASSIGNED
- if (is_asi) {
- printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
- " asi 0x%02x from " TARGET_FMT_lx "\n",
- is_exec ? "exec" : is_write ? "write" : "read", size,
- size == 1 ? "" : "s", addr, is_asi, env->pc);
- } else {
- printf("Unassigned mem %s access of %d byte%s to " TARGET_FMT_plx
- " from " TARGET_FMT_lx "\n",
- is_exec ? "exec" : is_write ? "write" : "read", size,
- size == 1 ? "" : "s", addr, env->pc);
- }
-#endif
- /* Don't overwrite translation and access faults */
- fault_type = (env->mmuregs[3] & 0x1c) >> 2;
- if ((fault_type > 4) || (fault_type == 0)) {
- env->mmuregs[3] = 0; /* Fault status register */
- if (is_asi) {
- env->mmuregs[3] |= 1 << 16;
- }
- if (env->psrs) {
- env->mmuregs[3] |= 1 << 5;
- }
- if (is_exec) {
- env->mmuregs[3] |= 1 << 6;
- }
- if (is_write) {
- env->mmuregs[3] |= 1 << 7;
- }
- env->mmuregs[3] |= (5 << 2) | 2;
- /* SuperSPARC will never place instruction fault addresses in the FAR */
- if (!is_exec) {
- env->mmuregs[4] = addr; /* Fault address register */
- }
- }
- /* overflow (same type fault was not read before another fault) */
- if (fault_type == ((env->mmuregs[3] & 0x1c)) >> 2) {
- env->mmuregs[3] |= 1;
- }
-
- if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) {
- int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS;
- cpu_raise_exception_ra(env, tt, GETPC());
- }
-
- /* flush neverland mappings created during no-fault mode,
- so the sequential MMU faults report proper fault types */
- if (env->mmuregs[0] & MMU_NF) {
- tlb_flush(cs, 1);
- }
-}
-#else
-void sparc_cpu_unassigned_access(CPUState *cs, hwaddr addr,
- bool is_write, bool is_exec, int is_asi,
- unsigned size)
-{
- SPARCCPU *cpu = SPARC_CPU(cs);
- CPUSPARCState *env = &cpu->env;
- int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS;
-
-#ifdef DEBUG_UNASSIGNED
- printf("Unassigned mem access to " TARGET_FMT_plx " from " TARGET_FMT_lx
- "\n", addr, env->pc);
-#endif
-
- cpu_raise_exception_ra(env, tt, GETPC());
-}
-#endif
-#endif
-
-#if !defined(CONFIG_USER_ONLY)
-void QEMU_NORETURN sparc_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
- MMUAccessType access_type,
- int mmu_idx,
- uintptr_t retaddr)
-{
- SPARCCPU *cpu = SPARC_CPU(cs);
- CPUSPARCState *env = &cpu->env;
-
-#ifdef DEBUG_UNALIGNED
- printf("Unaligned access to 0x" TARGET_FMT_lx " from 0x" TARGET_FMT_lx
- "\n", addr, env->pc);
-#endif
- cpu_raise_exception_ra(env, TT_UNALIGNED, retaddr);
-}
-
-/* try to fill the TLB and return an exception if error. If retaddr is
- NULL, it means that the function was called in C code (i.e. not
- from generated code or from helper.c) */
-/* XXX: fix it to restore all registers */
-void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
- int mmu_idx, uintptr_t retaddr)
-{
- int ret;
-
- ret = sparc_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
- if (ret) {
- cpu_loop_exit_restore(cs, retaddr);
- }
-}
-#endif