Re: [PATCH 3/6] powerpc: add memory map support to Freescale RapidIO block
From: Andrew Morton <akpm@linux-foundation.org>
Date: 2009-05-12 22:11:22
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linuxppc-dev, lkml
On Tue, 12 May 2009 16:36:00 +0800 Li Yang [off-list ref] wrote:
+ align = (size < 0x1000) ? 0x1000 : 1 << (__ilog2(size - 1) + 1);
+
+ /* Align the size */
+ if ((lstart + size) > (_ALIGN_DOWN(lstart, align) + align)) {__ilog2() and _ALIGN_DOWN() are powerpc-specific functions. It would be preferable to use more general helpers if possible. ALIGN() and ilog2() might suit here.