linux-kernel - Re: [PATCH] unicore32 framebuffer driver fix: make videomemory kmalloc-ed and floatable

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Date:	Tue, 29 Mar 2011 16:42:49 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	"Guan Xuetao" <gxt@...c.pku.edu.cn>
Cc:	"Paul Mundt" <lethal@...ux-sh.org>, linux-kernel@...r.kernel.org,
	linux-fbdev@...r.kernel.org
Subject: Re: [PATCH] unicore32 framebuffer driver fix: make videomemory kmalloc-ed and floatable

On Tuesday 29 March 2011, Guan Xuetao wrote:
> 
> 1. make videomemory kmalloc-ed in fb-puv3.c
> 2. remove resource reservation for old fixed UNIGFX_MMAP & UVC_MMAP space
> 3. remove unused PKUNTIY_UNIGFX_MMAP_BASE, PKUNITY_UNIGFX_MMAP_SIZE,
>         PKUNITY_UVC_MMAP_BASE, PKUNITY_UVC_MMAP_SIZE and KUSER_UNIGFX_BASE
> 4. remove unused header linux/vmalloc.h in fb-puv3.c
> 
> Signed-off-by: Guan Xuetao <gxt@...c.pku.edu.cn>

How does this work? UNIFB_MEMSIZE seems to be 4 MB, much more than the
maximum of 128 KB that kmalloc can allocate.

Shouldn't this use get_free_pages() instead of kmalloc?

	Arnd
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