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Line 61... Line 61...
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SPINLOCK_INITIALIZE(tidlock);
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SPINLOCK_INITIALIZE(tidlock);
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__u32 last_tid = 0;
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__u32 last_tid = 0;
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static slab_cache_t *thread_slab;
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static slab_cache_t *thread_slab;
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#ifdef ARCH_HAS_FPU
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slab_cache_t *fpu_context_slab;
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#endif
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/** Thread wrapper
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/** Thread wrapper
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 *
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 *
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 * This wrapper is provided to ensure that every thread
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 * This wrapper is provided to ensure that every thread
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    link_initialize(&t->rq_link);
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    link_initialize(&t->rq_link);
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    link_initialize(&t->wq_link);
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    link_initialize(&t->wq_link);
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    link_initialize(&t->th_link);
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    link_initialize(&t->th_link);
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    link_initialize(&t->threads_link);
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    link_initialize(&t->threads_link);
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#ifdef ARCH_HAS_FPU
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#  ifdef CONFIG_FPU_LAZY
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    t->saved_fpu_context = NULL;
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#  else
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    t->saved_fpu_context = slab_alloc(fpu_context_slab,kmflags);
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    if (!t->saved_fpu_context)
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        return -1;
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#  endif
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#endif 
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    pfn = frame_alloc_rc(ONE_FRAME, FRAME_KA | kmflags,&status);
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    pfn = frame_alloc_rc(ONE_FRAME, FRAME_KA | kmflags,&status);
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    if (status)
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    if (status) {
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#ifdef ARCH_HAS_FPU
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        if (t->saved_fpu_context)
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            slab_free(fpu_context_slab,t->saved_fpu_context);
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#endif
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        return -1;
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        return -1;
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    }
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    t->kstack = (__u8 *)PA2KA(PFN2ADDR(pfn));
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    t->kstack = (__u8 *)PA2KA(PFN2ADDR(pfn));
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    return 0;
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    return 0;
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}
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}
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static int thr_destructor(void *obj)
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static int thr_destructor(void *obj)
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{
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{
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    thread_t *t = (thread_t *)obj;
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    thread_t *t = (thread_t *)obj;
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    frame_free(ADDR2PFN(KA2PA(t->kstack)));
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    frame_free(ADDR2PFN(KA2PA(t->kstack)));
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#ifdef ARCH_HAS_FPU
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    if (t->saved_fpu_context)
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        slab_free(fpu_context_slab,t->saved_fpu_context);
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#endif
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    return 1; /* One page freed */
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    return 1; /* One page freed */
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}
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}
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/** Initialize threads
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/** Initialize threads
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 *
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 *
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    THREAD = NULL;
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    THREAD = NULL;
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    atomic_set(&nrdy,0);
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    atomic_set(&nrdy,0);
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    thread_slab = slab_cache_create("thread_slab",
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    thread_slab = slab_cache_create("thread_slab",
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                    sizeof(thread_t),0,
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                    sizeof(thread_t),0,
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                    thr_constructor, thr_destructor, 0);
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                    thr_constructor, thr_destructor, 0);
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#ifdef ARCH_HAS_FPU
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    fpu_context_slab = slab_cache_create("fpu_slab",
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                         sizeof(fpu_context_t),
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                         FPU_CONTEXT_ALIGN,
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                         NULL, NULL, 0);
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#endif
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}
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}
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/** Make thread ready
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/** Make thread ready
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 *
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 *