Re: [PATCH] unicore32 framebuffer driver fix: make videomemory kmalloc-ed and floatable
From: Arnd Bergmann <arnd@arndb.de>
Date: 2011-03-30 10:55:31
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On Wednesday 30 March 2011, Guan Xuetao wrote:
Is it appropriate to using __get_free_pages in framebuffer driver?
Yes, it is appropriate, and it is also more efficient than using kmalloc.
And both SLAB and SLUB allocators support 4MB request.
Ok, I did not know that, but I see now how the maximum size is computed. The limit was 128 KB for a long time, but has apparently changed. Arnd