mirror of
https://github.com/jart/cosmopolitan.git
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Get POSIX threads working on Apple Silicon
It's now possible to run a working
ape-m1 o/aarch64/third_party/ggml/llama.com
on Apple M1 hardware running XNU!
This commit is contained in:
Justine Tunney
parent
8fdb31681a
commit
b5eab2b0b7
3 changed files with 78 additions and 16 deletions
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@ -89,7 +89,13 @@ sched_yield:
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ret
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#elif defined(__aarch64__)
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mov x8,#0x7c
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mov x0,#0
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mov x1,#0
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mov x2,#0
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mov x3,#0
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mov x8,#0x7c // sched_yield() for linux
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mov x16,#0x85d // select(0,0,0,0) for xnu
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svc 0
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ret
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@ -18,12 +18,14 @@
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/sysv/consts/clone.h"
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#include "libc/assert.h"
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#include "libc/atomic.h"
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/ucontext-netbsd.internal.h"
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/asan.internal.h"
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#include "libc/intrin/atomic.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/intrin/strace.internal.h"
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@ -36,6 +38,7 @@
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#include "libc/runtime/clone.internal.h"
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#include "libc/runtime/internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/runtime/syslib.internal.h"
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#include "libc/sock/internal.h"
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#include "libc/stdalign.internal.h"
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#include "libc/str/str.h"
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@ -50,8 +53,6 @@
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#include "libc/thread/tls2.h"
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#include "libc/thread/xnu.internal.h"
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#ifdef __x86_64__
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#define __NR_thr_new 455
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#define __NR_clone_linux 56
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#define __NR__lwp_create 309
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@ -62,10 +63,6 @@
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#define LWP_DETACHED 0x00000040
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#define LWP_SUSPENDED 0x00000080
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__msabi extern typeof(TlsSetValue) *const __imp_TlsSetValue;
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__msabi extern typeof(ExitThread) *const __imp_ExitThread;
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__msabi extern typeof(WakeByAddressAll) *const __imp_WakeByAddressAll;
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struct CloneArgs {
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union {
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int tid;
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@ -80,9 +77,15 @@ struct CloneArgs {
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void *arg;
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};
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#ifdef __x86_64__
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////////////////////////////////////////////////////////////////////////////////
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// THE NEW TECHNOLOGY
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__msabi extern typeof(TlsSetValue) *const __imp_TlsSetValue;
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__msabi extern typeof(ExitThread) *const __imp_ExitThread;
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__msabi extern typeof(WakeByAddressAll) *const __imp_WakeByAddressAll;
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int WinThreadLaunch(void *arg, // rdi
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int tid, // rsi
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int (*func)(void *, int), // rdx
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@ -143,12 +146,12 @@ static textwindows errno_t CloneWindows(int (*func)(void *, int), char *stk,
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////////////////////////////////////////////////////////////////////////////////
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// XNU'S NOT UNIX
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void XnuThreadThunk(void *pthread, // rdi
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int machport, // rsi
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void *(*func)(void *), // rdx
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void *arg, // rcx
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intptr_t *stack, // r8
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unsigned xnuflags); // r9
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void XnuThreadThunk(void *pthread, // rdi x0
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int machport, // rsi x1
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void *(*func)(void *), // rdx x2
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void *arg, // rcx x3
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intptr_t *stack, // r8 x4
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unsigned xnuflags); // r9 x5
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asm("XnuThreadThunk:\n\t"
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"xor\t%ebp,%ebp\n\t"
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"mov\t%r8,%rsp\n\t"
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@ -189,8 +192,7 @@ XnuThreadMain(void *pthread, // rdi
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// %r10 = uint32_t sem);
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asm volatile("movl\t$0,%0\n\t" // *wt->ztid = 0
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"xor\t%%r10d,%%r10d\n\t" // sem = 0
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"syscall\n\t" // __bsdthread_terminate()
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"ud2"
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"syscall" // __bsdthread_terminate()
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: "=m"(*wt->ztid)
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: "a"(0x2000000 | 361), "D"(0), "S"(0), "d"(0L)
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: "rcx", "r10", "r11", "memory");
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@ -430,6 +432,52 @@ static int CloneNetbsd(int (*func)(void *, int), char *stk, size_t stksz,
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#endif /* __x86_64__ */
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#ifdef __aarch64__
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////////////////////////////////////////////////////////////////////////////////
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// APPLE SILICON
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static void *SiliconThreadMain(void *arg) {
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register struct CloneArgs *wt asm("x21") = arg;
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asm volatile("ldr\tx28,%0" : /* no outputs */ : "m"(wt->tls));
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int tid = sys_gettid();
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*wt->ctid = tid;
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*wt->ptid = tid;
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register long x0 asm("x0") = (long)wt->arg;
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register long x1 asm("x1") = (long)tid;
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asm volatile("mov\tx19,x29\n\t" // save frame pointer
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"mov\tx20,sp\n\t" // save stack pointer
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"mov\tx29,#0\n\t" // reset backtrace
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"mov\tsp,x21\n\t" // switch stack
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"blr\t%2\n\t" // wt->func(wt->arg, tid)
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"mov\tx29,x19\n\t" // restore frame pointer
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"mov\tsp,x20" // restore stack pointer
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: "+r"(x0)
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: "r"(x1), "r"(wt->func)
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: "x19", "x20", "memory");
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*wt->ztid = 0;
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return 0;
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}
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static errno_t CloneSilicon(int (*fn)(void *, int), char *stk, size_t stksz,
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int flags, void *arg, void *tls, int *ptid,
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int *ctid) {
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pthread_t th;
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struct CloneArgs *wt;
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wt = (struct CloneArgs *)(((intptr_t)(stk + stksz) -
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sizeof(struct CloneArgs)) &
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-MAX(16, alignof(struct CloneArgs)));
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wt->ctid = flags & CLONE_CHILD_SETTID ? ctid : &wt->tid;
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wt->ptid = flags & CLONE_PARENT_SETTID ? ptid : &wt->tid;
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wt->ztid = flags & CLONE_CHILD_CLEARTID ? ctid : &wt->tid;
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wt->tls = flags & CLONE_SETTLS ? tls : 0;
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wt->func = fn;
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wt->arg = arg;
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return __syslib->pthread_create(&th, 0, SiliconThreadMain, wt);
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}
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#endif /* __aarch64__ */
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////////////////////////////////////////////////////////////////////////////////
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// GNU/SYSTEMD
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@ -605,9 +653,15 @@ errno_t clone(void *func, void *stk, size_t stksz, int flags, void *arg,
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CLONE_SIGHAND | CLONE_SYSVSEM)) {
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STRACE("cosmo clone() is picky about flags, see clone.c");
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rc = EINVAL;
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#ifdef __x86_64__
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} else if (IsXnu()) {
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#ifdef __x86_64__
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rc = CloneXnu(func, stk, stksz, flags, arg, tls, ptid, ctid);
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#elif defined(__aarch64__)
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rc = CloneSilicon(func, stk, stksz, flags, arg, tls, ptid, ctid);
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#else
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#error "unsupported architecture"
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#endif
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#ifdef __x86_64__
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} else if (IsFreebsd()) {
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rc = CloneFreebsd(func, stk, stksz, flags, arg, tls, ptid, ctid);
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} else if (IsNetbsd()) {
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2
third_party/ggml/llama.cc
vendored
2
third_party/ggml/llama.cc
vendored
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@ -1128,8 +1128,10 @@ static void llama_model_load_internal(
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const size_t mem_required_state =
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scale*MEM_REQ_KV_SELF().at(model.type);
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if (verbose > 0) {
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fprintf(stderr, "%s: mem required = %7.2f MB (+ %7.2f MB per state)\n", __func__,
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mem_required / 1024.0 / 1024.0, mem_required_state / 1024.0 / 1024.0);
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}
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#ifdef GGML_USE_CUBLAS
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const int n_gpu = std::min(n_gpu_layers, int(hparams.n_layer));
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