#define MAXBLOCK 4096
#define MAX_OUTPUT_BLOCK_SIZE 262144
+struct ndrc_mem
+{
+ u_char translation_cache[1 << TARGET_SIZE_2];
+ struct
+ {
+ struct tramp_insns ops[2048 / sizeof(struct tramp_insns)];
+ const void *f[2048 / sizeof(void *)];
+ } tramp;
+};
+
+#ifdef BASE_ADDR_DYNAMIC
+static struct ndrc_mem *ndrc;
+#else
+static struct ndrc_mem ndrc_ __attribute__((aligned(4096)));
+static struct ndrc_mem *ndrc = &ndrc_;
+#endif
+
// stubs
enum stub_type {
CC_STUB = 1,
static void *get_direct_memhandler(void *table, u_int addr,
enum stub_type type, uintptr_t *addr_host);
static void pass_args(int a0, int a1);
+static void emit_far_jump(const void *f);
+static void emit_far_call(const void *f);
static void mprotect_w_x(void *start, void *end, int is_x)
{
static void end_tcache_write(void *start, void *end)
{
-#ifdef __arm__
+#if defined(__arm__) || defined(__aarch64__)
size_t len = (char *)end - (char *)start;
#if defined(__BLACKBERRY_QNX__)
msync(start, len, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE);
sceKernelSyncVMDomain(sceBlock, start, len);
#elif defined(_3DS)
ctr_flush_invalidate_cache();
+ #elif defined(__aarch64__)
+ // as of 2021, __clear_cache() is still broken on arm64
+ // so here is a custom one :(
+ clear_cache_arm64(start, end);
#else
__clear_cache(start, end);
#endif
(void)len;
-#else
- __clear_cache(start, end);
#endif
mprotect_w_x(start, end, 1);
static void *start_block(void)
{
u_char *end = out + MAX_OUTPUT_BLOCK_SIZE;
- if (end > translation_cache + (1<<TARGET_SIZE_2))
- end = translation_cache + (1<<TARGET_SIZE_2);
+ if (end > ndrc->translation_cache + sizeof(ndrc->translation_cache))
+ end = ndrc->translation_cache + sizeof(ndrc->translation_cache);
start_tcache_write(out, end);
return out;
}
end_tcache_write(start, out);
}
+// also takes care of w^x mappings when patching code
+static u_int needs_clear_cache[1<<(TARGET_SIZE_2-17)];
+
+static void mark_clear_cache(void *target)
+{
+ uintptr_t offset = (u_char *)target - ndrc->translation_cache;
+ u_int mask = 1u << ((offset >> 12) & 31);
+ if (!(needs_clear_cache[offset >> 17] & mask)) {
+ char *start = (char *)((uintptr_t)target & ~4095l);
+ start_tcache_write(start, start + 4095);
+ needs_clear_cache[offset >> 17] |= mask;
+ }
+}
+
+// Clearing the cache is rather slow on ARM Linux, so mark the areas
+// that need to be cleared, and then only clear these areas once.
+static void do_clear_cache(void)
+{
+ int i, j;
+ for (i = 0; i < (1<<(TARGET_SIZE_2-17)); i++)
+ {
+ u_int bitmap = needs_clear_cache[i];
+ if (!bitmap)
+ continue;
+ for (j = 0; j < 32; j++)
+ {
+ u_char *start, *end;
+ if (!(bitmap & (1<<j)))
+ continue;
+
+ start = ndrc->translation_cache + i*131072 + j*4096;
+ end = start + 4095;
+ for (j++; j < 32; j++) {
+ if (!(bitmap & (1<<j)))
+ break;
+ end += 4096;
+ }
+ end_tcache_write(start, end);
+ }
+ needs_clear_cache[i] = 0;
+ }
+}
+
//#define DEBUG_CYCLE_COUNT 1
#define NO_CYCLE_PENALTY_THR 12
#include "assem_arm64.c"
#endif
+static void *get_trampoline(const void *f)
+{
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(ndrc->tramp.f); i++) {
+ if (ndrc->tramp.f[i] == f || ndrc->tramp.f[i] == NULL)
+ break;
+ }
+ if (i == ARRAY_SIZE(ndrc->tramp.f)) {
+ SysPrintf("trampoline table is full, last func %p\n", f);
+ abort();
+ }
+ if (ndrc->tramp.f[i] == NULL) {
+ start_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]);
+ ndrc->tramp.f[i] = f;
+ end_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]);
+ }
+ return &ndrc->tramp.ops[i];
+}
+
+static void emit_far_jump(const void *f)
+{
+ if (can_jump_or_call(f)) {
+ emit_jmp(f);
+ return;
+ }
+
+ f = get_trampoline(f);
+ emit_jmp(f);
+}
+
+static void emit_far_call(const void *f)
+{
+ if (can_jump_or_call(f)) {
+ emit_call(f);
+ return;
+ }
+
+ f = get_trampoline(f);
+ emit_call(f);
+}
+
// Add virtual address mapping to linked list
void ll_add(struct ll_entry **head,int vaddr,void *addr)
{
{
inv_debug("EXP: Kill pointer at %p (%x)\n",head->addr,head->vaddr);
void *host_addr=find_extjump_insn(head->addr);
- #if defined(__arm__) || defined(__aarch64__)
- mark_clear_cache(host_addr);
- #endif
+ mark_clear_cache(host_addr);
set_jump_target(host_addr, head->addr);
}
head=head->next;
while(head!=NULL) {
inv_debug("INVALIDATE: kill pointer to %x (%p)\n",head->vaddr,head->addr);
void *host_addr=find_extjump_insn(head->addr);
- #if defined(__arm__) || defined(__aarch64__)
- mark_clear_cache(host_addr);
- #endif
+ mark_clear_cache(host_addr);
set_jump_target(host_addr, head->addr);
next=head->next;
free(head);
for(first=page+1;first<last;first++) {
invalidate_page(first);
}
- #if defined(__arm__) || defined(__aarch64__)
- do_clear_cache();
- #endif
+ do_clear_cache();
// Don't trap writes
invalid_code[block]=1;
// This is called when loading a save state.
// Anything could have changed, so invalidate everything.
-void invalidate_all_pages()
+void invalidate_all_pages(void)
{
u_int page;
for(page=0;page<4096;page++)
#ifdef USE_MINI_HT
memset(mini_ht,-1,sizeof(mini_ht));
#endif
+ do_clear_cache();
}
static void do_invstub(int n)
set_jump_target(stubs[n].addr, out);
save_regs(reglist);
if(stubs[n].b!=0) emit_mov(stubs[n].b,0);
- emit_call(invalidate_addr);
+ emit_far_call(invalidate_addr);
restore_regs(reglist);
emit_jmp(stubs[n].retaddr); // return address
}
emit_movimm(start+i*4+4,0);
emit_writeword(0,&pcaddr);
emit_addimm(HOST_CCREG,2,HOST_CCREG);
- emit_call(get_addr_ht);
+ emit_far_call(get_addr_ht);
emit_jmpreg(0);
}
}
emit_storereg(CCREG,HOST_CCREG);
emit_loadreg(rs1[i],1);
emit_movimm(copr,0);
- emit_call(pcsx_mtc0_ds);
+ emit_far_call(pcsx_mtc0_ds);
emit_loadreg(rs1[i],s);
return;
}
emit_movimm(0,HOST_TEMPREG);
emit_writeword(HOST_TEMPREG,&pending_exception);
}
- //else if(copr==12&&is_delayslot) emit_call((int)MTC0_R12);
- //else
if(s==HOST_CCREG)
emit_loadreg(rs1[i],1);
else if(s!=1)
emit_mov(s,1);
emit_movimm(copr,0);
- emit_call(pcsx_mtc0);
+ emit_far_call(pcsx_mtc0);
if(copr==9||copr==11||copr==12||copr==13) {
emit_readword(&Count,HOST_CCREG);
emit_readword(&next_interupt,HOST_TEMPREG);
emit_jeq(0);
emit_readword(&pcaddr, 0);
emit_addimm(HOST_CCREG,2,HOST_CCREG);
- emit_call(get_addr_ht);
+ emit_far_call(get_addr_ht);
emit_jmpreg(0);
set_jump_target(jaddr, out);
}
if(regs[i].regmap_entry[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG);
emit_movimm(start+(i-ds)*4,EAX); // Get PC
emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // CHECK: is this right? There should probably be an extra cycle...
- emit_jmp(ds?fp_exception_ds:fp_exception);
+ emit_far_jump(ds?fp_exception_ds:fp_exception);
}
static void cop2_get_dreg(u_int copr,signed char tl,signed char temp)
if(cc<0)
emit_loadreg(CCREG,2);
emit_addimm(cc<0?2:cc,CLOCK_ADJUST((int)stubs[n].d+1),2);
- emit_call((opcode[i]==0x2a?jump_handle_swl:jump_handle_swr));
+ emit_far_call((opcode[i]==0x2a?jump_handle_swl:jump_handle_swr));
emit_addimm(0,-CLOCK_ADJUST((int)stubs[n].d+1),cc<0?2:cc);
if(cc<0)
emit_storereg(CCREG,2);
emit_addimm(HOST_CCREG,CLOCK_ADJUST(ccadj[i]),HOST_CCREG); // XXX
emit_add(2,HOST_CCREG,2);
emit_writeword(2,&psxRegs.cycle);
- emit_call(func);
- emit_jmp(jump_to_new_pc);
+ emit_far_call(func);
+ emit_far_jump(jump_to_new_pc);
}
static void syscall_assemble(int i,struct regstat *i_regs)
save_regs(reglist);
emit_movimm(start+i*4,0);
emit_writeword(0,&pcaddr);
- emit_call(do_insn_cmp);
+ emit_far_call(do_insn_cmp);
//emit_readword(&cycle,0);
//emit_addimm(0,2,0);
//emit_writeword(0,&cycle);
// Update cycle count
assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1);
if(stubs[n].a) emit_addimm(HOST_CCREG,CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG);
- emit_call(cc_interrupt);
+ emit_far_call(cc_interrupt);
if(stubs[n].a) emit_addimm(HOST_CCREG,-CLOCK_ADJUST((signed int)stubs[n].a),HOST_CCREG);
if(stubs[n].d==TAKEN) {
if(internal_branch(ba[i]))
((volatile u_int *)out)[0]++; // make cache dirty
for (i = 0; i < ARRAY_SIZE(ret); i++) {
- out = translation_cache;
+ out = ndrc->translation_cache;
beginning = start_block();
emit_movimm(DRC_TEST_VAL + i, 0); // test
emit_ret();
SysPrintf("test passed.\n");
else
SysPrintf("test failed, will likely crash soon (r=%08x %08x)\n", ret[0], ret[1]);
- out = translation_cache;
+ out = ndrc->translation_cache;
}
// clear the state completely, instead of just marking
// things invalid like invalidate_all_pages() does
-void new_dynarec_clear_full()
+void new_dynarec_clear_full(void)
{
int n;
- out = translation_cache;
+ out = ndrc->translation_cache;
memset(invalid_code,1,sizeof(invalid_code));
memset(hash_table,0xff,sizeof(hash_table));
memset(mini_ht,-1,sizeof(mini_ht));
for(n=0;n<4096;n++) ll_clear(jump_dirty+n);
}
-void new_dynarec_init()
+void new_dynarec_init(void)
{
SysPrintf("Init new dynarec\n");
- // allocate/prepare a buffer for translation cache
- // see assem_arm.h for some explanation
-#if defined(BASE_ADDR_FIXED)
- if (mmap(translation_cache, 1 << TARGET_SIZE_2,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_PRIVATE | MAP_ANONYMOUS,
- -1, 0) != translation_cache) {
- SysPrintf("mmap() failed: %s\n", strerror(errno));
- SysPrintf("disable BASE_ADDR_FIXED and recompile\n");
- abort();
- }
-#elif defined(BASE_ADDR_DYNAMIC)
+#ifdef BASE_ADDR_DYNAMIC
#ifdef VITA
sceBlock = sceKernelAllocMemBlockForVM("code", 1 << TARGET_SIZE_2);
if (sceBlock < 0)
SysPrintf("sceKernelAllocMemBlockForVM failed\n");
- int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&translation_cache);
+ int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&ndrc);
if (ret < 0)
SysPrintf("sceKernelGetMemBlockBase failed\n");
#else
- translation_cache = mmap (NULL, 1 << TARGET_SIZE_2,
+ uintptr_t desired_addr = 0;
+ #ifdef __ELF__
+ extern char _end;
+ desired_addr = ((uintptr_t)&_end + 0xffffff) & ~0xffffffl;
+ #endif
+ ndrc = mmap((void *)desired_addr, sizeof(*ndrc),
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
- if (translation_cache == MAP_FAILED) {
+ if (ndrc == MAP_FAILED) {
SysPrintf("mmap() failed: %s\n", strerror(errno));
abort();
}
#else
#ifndef NO_WRITE_EXEC
// not all systems allow execute in data segment by default
- if (mprotect(translation_cache, 1<<TARGET_SIZE_2, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
+ if (mprotect(ndrc, sizeof(ndrc->translation_cache) + sizeof(ndrc->tramp.ops),
+ PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
SysPrintf("mprotect() failed: %s\n", strerror(errno));
#endif
#endif
- out = translation_cache;
+ out = ndrc->translation_cache;
cycle_multiplier=200;
new_dynarec_clear_full();
#ifdef HOST_IMM8
SysPrintf("warning: RAM is not directly mapped, performance will suffer\n");
}
-void new_dynarec_cleanup()
+void new_dynarec_cleanup(void)
{
int n;
-#if defined(BASE_ADDR_FIXED) || defined(BASE_ADDR_DYNAMIC)
+#ifdef BASE_ADDR_DYNAMIC
#ifdef VITA
sceKernelFreeMemBlock(sceBlock);
sceBlock = -1;
#else
- if (munmap(translation_cache, 1<<TARGET_SIZE_2) < 0)
+ if (munmap(ndrc, sizeof(*ndrc)) < 0)
SysPrintf("munmap() failed\n");
#endif
#endif
invalid_code[start>>12]=0;
emit_movimm(start,0);
emit_writeword(0,&pcaddr);
- emit_jmp(new_dyna_leave);
+ emit_far_jump(new_dyna_leave);
literal_pool(0);
end_block(beginning);
ll_add_flags(jump_in+page,start,state_rflags,(void *)beginning);
emit_cmp(0,1);
#ifdef __aarch64__
emit_jeq(out + 4*2);
- emit_jmp(new_dyna_leave);
+ emit_far_jump(new_dyna_leave);
#else
emit_jne(new_dyna_leave);
#endif
// If we're within 256K of the end of the buffer,
// start over from the beginning. (Is 256K enough?)
- if (out > translation_cache+(1<<TARGET_SIZE_2)-MAX_OUTPUT_BLOCK_SIZE)
- out = translation_cache;
+ if (out > ndrc->translation_cache + sizeof(ndrc->translation_cache) - MAX_OUTPUT_BLOCK_SIZE)
+ out = ndrc->translation_cache;
// Trap writes to any of the pages we compiled
for(i=start>>12;i<=(start+slen*4)>>12;i++) {
/* Pass 10 - Free memory by expiring oldest blocks */
- int end=(((out-translation_cache)>>(TARGET_SIZE_2-16))+16384)&65535;
+ int end=(((out-ndrc->translation_cache)>>(TARGET_SIZE_2-16))+16384)&65535;
while(expirep!=end)
{
int shift=TARGET_SIZE_2-3; // Divide into 8 blocks
- uintptr_t base=(uintptr_t)translation_cache+((expirep>>13)<<shift); // Base address of this block
+ uintptr_t base=(uintptr_t)ndrc->translation_cache+((expirep>>13)<<shift); // Base address of this block
inv_debug("EXP: Phase %d\n",expirep);
switch((expirep>>11)&3)
{
break;
case 3:
// Clear jump_out
- #if defined(__arm__) || defined(__aarch64__)
if((expirep&2047)==0)
do_clear_cache();
- #endif
ll_remove_matching_addrs(jump_out+(expirep&2047),base,shift);
ll_remove_matching_addrs(jump_out+2048+(expirep&2047),base,shift);
break;
notaz.gp2x.de / pcsx_rearmed.git / blobdiff