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/*
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 * running the l2 cache as write-back and using cached memory for
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 * usb data structures yields spurious errors such as
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 *
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 *	qhintr: td 0x60ee3d80 csw 0x8824a error 0x48 transaction error
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 *
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 * from usbehci.  so, at least for now, we will use uncached memory until
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 * we sort out the write-back problems.
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 */
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#define free			ucfree
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#define malloc			myucalloc
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#define mallocz			ucallocz
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#define smalloc			myucalloc
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#define xspanalloc		ucallocalign
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#define allocb			ucallocb
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#define iallocb			uciallocb
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#define freeb			ucfreeb
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static void *
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ucallocz(uint n, int)
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{
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	char *p = ucalloc(n);
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	if (p)
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		memset(p, 0, n);
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	else
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		panic("ucalloc: out of memory");
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	return p;
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}
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static void *
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myucalloc(uint n)
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{
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	return ucallocz(n, 1);
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}