Intel 80310 I/O Processor Chipset AAU Coding Techniques
Intel 80310 I/O Processor Chipset AAU Coding Techniques
Intel 80310 I/O Processor Chipset AAU Coding Techniques
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<strong>Intel</strong> ® <strong>80310</strong> I/O <strong>Processor</strong> <strong>Chipset</strong> <strong>AAU</strong> <strong>Coding</strong> <strong>Techniques</strong><strong>AAU</strong> Source Code868 printk("<strong>Intel</strong> <strong>80310</strong> <strong>AAU</strong> Copyright(c) 2001 <strong>Intel</strong> Corporation\n");869 DPRINTK("Initializing...");870871 /* set the IRQ */872 aau_dev.irq = IRQ_IOP310_<strong>AAU</strong>;873874 err = request_irq(aau_dev.irq, aau_irq_handler, SA_INTERRUPT,875 NULL, (void *)&aau_dev);876 if(err < 0)877 {878 printk(KERN_ERR "unable to request IRQ %d for <strong>AAU</strong>: %d\n",879 aau_dev.irq, err);880 return err;881 }882883 /* init free stack */884 INIT_LIST_HEAD(&free_stack);885 /* init free stack spinlock */886 spin_lock_init(&free_lock);887888889 /* pre-alloc <strong>AAU</strong> descriptors */890 for(i = 0; i < MAX_<strong>AAU</strong>_DESC; i++)891 {892 desc = kmalloc((sizeof(sw_aau_t) + 0x20), GFP_KERNEL);893 memset(desc, 0, sizeof(sw_aau_t));894 sw_desc = (sw_aau_t *) (((u32) desc & 0xffffffe0) + 0x20);895 sw_desc->aau_phys = virt_to_phys((void *)sw_desc);896 /* we keep track of original address before alignment adjust */897 /* so we can free it later */898 sw_desc->desc_addr = (u32) desc;899900 spin_lock_irq(&free_lock);901 /* put the descriptors on the free stack */White Paper 59
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