From 3039c914c0ac33ee89127db3bd4c53eb3c25cafd Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 15 Jul 2022 00:24:34 +0300 Subject: [PATCH] drc: some libnx support --- libpcsxcore/new_dynarec/assem_arm64.c | 12 ++-- libpcsxcore/new_dynarec/new_dynarec.c | 66 +++++++++++++++++--- libpcsxcore/new_dynarec/new_dynarec_config.h | 7 ++- 3 files changed, 71 insertions(+), 14 deletions(-) diff --git a/libpcsxcore/new_dynarec/assem_arm64.c b/libpcsxcore/new_dynarec/assem_arm64.c index 4eda43a9..ff0d1a6c 100644 --- a/libpcsxcore/new_dynarec/assem_arm64.c +++ b/libpcsxcore/new_dynarec/assem_arm64.c @@ -34,6 +34,8 @@ static void set_jump_target(void *addr, void *target) u_int *ptr = addr; intptr_t offset = (u_char *)target - (u_char *)addr; + ptr += ndrc_write_ofs / sizeof(ptr[0]); + if ((*ptr&0xFC000000) == 0x14000000) { // b assert(offset>=-134217728LL&&offset<134217728LL); *ptr=(*ptr&0xFC000000)|((offset>>2)&0x3ffffff); @@ -142,7 +144,7 @@ static unused const char *condname[16] = { static void output_w32(u_int word) { - *((u_int *)out) = word; + *((u_int *)(out + ndrc_write_ofs)) = word; out += 4; } @@ -1943,13 +1945,13 @@ static void clear_cache_arm64(char *start, char *end) static void arch_init(void) { uintptr_t diff = (u_char *)&ndrc->tramp.f - (u_char *)&ndrc->tramp.ops; - struct tramp_insns *ops = ndrc->tramp.ops; + struct tramp_insns *ops = ndrc->tramp.ops, *opsw; size_t i; assert(!(diff & 3)); - start_tcache_write(ops, (u_char *)ops + sizeof(ndrc->tramp.ops)); + opsw = start_tcache_write(ops, (u_char *)ops + sizeof(ndrc->tramp.ops)); for (i = 0; i < ARRAY_SIZE(ndrc->tramp.ops); i++) { - ops[i].ldr = 0x58000000 | imm19_rt(diff >> 2, 17); // ldr x17, [=val] - ops[i].br = 0xd61f0000 | rm_rn_rd(0, 17, 0); // br x17 + opsw[i].ldr = 0x58000000 | imm19_rt(diff >> 2, 17); // ldr x17, [=val] + opsw[i].br = 0xd61f0000 | rm_rn_rd(0, 17, 0); // br x17 } end_tcache_write(ops, (u_char *)ops + sizeof(ndrc->tramp.ops)); } diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c index b160a4a0..cabf4871 100644 --- a/libpcsxcore/new_dynarec/new_dynarec.c +++ b/libpcsxcore/new_dynarec/new_dynarec.c @@ -29,6 +29,10 @@ #ifdef _3DS #include <3ds_utils.h> #endif +#ifdef HAVE_LIBNX +#include +static Jit g_jit; +#endif #include "new_dynarec_config.h" #include "../psxhle.h" @@ -107,6 +111,17 @@ static struct ndrc_mem *ndrc; static struct ndrc_mem ndrc_ __attribute__((aligned(4096))); static struct ndrc_mem *ndrc = &ndrc_; #endif +#ifdef NDRC_WRITE_OFFSET +# ifdef __GLIBC__ +# include +# include +# include +# include +# endif +static long ndrc_write_ofs; +#else +#define ndrc_write_ofs 0 +#endif // stubs enum stub_type { @@ -424,6 +439,16 @@ static void mprotect_w_x(void *start, void *end, int is_x) sceKernelCloseVMDomain(); else sceKernelOpenVMDomain(); + #elif defined(HAVE_LIBNX) + Result rc; + if (is_x) + rc = jitTransitionToExecutable(&g_jit); + else + rc = jitTransitionToWritable(&g_jit); + if (R_FAILED(rc)) + SysPrintf("jitTransition %d %08x\n", is_x, rc); + #elif defined(NDRC_WRITE_OFFSET) + // separated rx and rw areas are always available #else u_long mstart = (u_long)start & ~4095ul; u_long mend = (u_long)end; @@ -434,9 +459,10 @@ static void mprotect_w_x(void *start, void *end, int is_x) #endif } -static void start_tcache_write(void *start, void *end) +static void *start_tcache_write(void *start, void *end) { mprotect_w_x(start, end, 0); + return (char *)start + ndrc_write_ofs; } static void end_tcache_write(void *start, void *end) @@ -451,6 +477,8 @@ static void end_tcache_write(void *start, void *end) sceKernelSyncVMDomain(sceBlock, start, len); #elif defined(_3DS) ctr_flush_invalidate_cache(); + #elif defined(HAVE_LIBNX) + // handled in mprotect_w_x() #elif defined(__aarch64__) // as of 2021, __clear_cache() is still broken on arm64 // so here is a custom one :( @@ -1154,8 +1182,8 @@ static void *get_trampoline(const void *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; + const void **d = start_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]); + *d = f; end_tcache_write(&ndrc->tramp.f[i], &ndrc->tramp.f[i + 1]); } return &ndrc->tramp.ops[i]; @@ -6057,7 +6085,7 @@ static void new_dynarec_test(void) } SysPrintf("testing if we can run recompiled code @%p...\n", out); - ((volatile u_int *)out)[0]++; // make cache dirty + ((volatile u_int *)(out + ndrc_write_ofs))[0]++; // make the cache dirty for (i = 0; i < ARRAY_SIZE(ret); i++) { out = ndrc->translation_cache; @@ -6128,19 +6156,39 @@ void new_dynarec_init(void) #elif defined(_MSC_VER) ndrc = VirtualAlloc(NULL, sizeof(*ndrc), MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE); + #elif defined(HAVE_LIBNX) + Result rc = jitCreate(&g_jit, sizeof(*ndrc)); + if (R_FAILED(rc)) + SysPrintf("jitCreate failed: %08x\n", rc); + SysPrintf("jitCreate: RX: %p RW: %p type: %d\n", g_jit.rx_addr, g_jit.rw_addr, g_jit.type); + ndrc = g_jit.rx_addr; + ndrc_write_ofs = (char *)g_jit.rw_addr - (char *)ndrc; #else uintptr_t desired_addr = 0; + int prot = PROT_READ | PROT_WRITE | PROT_EXEC; + int flags = MAP_PRIVATE | MAP_ANONYMOUS; + int fd = -1; #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); + #ifdef NDRC_WRITE_OFFSET + // mostly for testing + fd = open("/dev/shm/pcsxr", O_CREAT | O_RDWR, 0600); + ftruncate(fd, sizeof(*ndrc)); + void *mw = mmap(NULL, sizeof(*ndrc), PROT_READ | PROT_WRITE, + (flags = MAP_SHARED), fd, 0); + assert(mw != MAP_FAILED); + prot = PROT_READ | PROT_EXEC; + #endif + ndrc = mmap((void *)desired_addr, sizeof(*ndrc), prot, flags, fd, 0); if (ndrc == MAP_FAILED) { SysPrintf("mmap() failed: %s\n", strerror(errno)); abort(); } + #ifdef NDRC_WRITE_OFFSET + ndrc_write_ofs = (char *)mw - (char *)ndrc; + #endif #endif #else #ifndef NO_WRITE_EXEC @@ -6175,9 +6223,13 @@ void new_dynarec_cleanup(void) // sceBlock is managed by retroarch's bootstrap code //sceKernelFreeMemBlock(sceBlock); //sceBlock = -1; + #elif defined(HAVE_LIBNX) + jitClose(&g_jit); + ndrc = NULL; #else if (munmap(ndrc, sizeof(*ndrc)) < 0) SysPrintf("munmap() failed\n"); + ndrc = NULL; #endif #endif for (n = 0; n < ARRAY_SIZE(blocks); n++) diff --git a/libpcsxcore/new_dynarec/new_dynarec_config.h b/libpcsxcore/new_dynarec/new_dynarec_config.h index f93613ff..64c58492 100644 --- a/libpcsxcore/new_dynarec/new_dynarec_config.h +++ b/libpcsxcore/new_dynarec/new_dynarec_config.h @@ -6,9 +6,12 @@ #define USE_MINI_HT 1 //#define REG_PREFETCH 1 -#if defined(__MACH__) +#if defined(__MACH__) || defined(HAVE_LIBNX) #define NO_WRITE_EXEC 1 #endif -#ifdef VITA +#if defined(VITA) || defined(HAVE_LIBNX) #define BASE_ADDR_DYNAMIC 1 #endif +#if defined(HAVE_LIBNX) +#define NDRC_WRITE_OFFSET 1 +#endif -- 2.39.2