fc47897d2c
This patch adds several definitions for device communication, including I/O accessors and ioremap(). The __raw_* accessors are implemented as inline asm to avoid compiler generation of post-indexed accesses (less efficient to emulate in a virtualised environment). Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
35 lines
1,000 B
C
35 lines
1,000 B
C
/*
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef __ASM_FB_H_
|
|
#define __ASM_FB_H_
|
|
|
|
#include <linux/fb.h>
|
|
#include <linux/fs.h>
|
|
#include <asm/page.h>
|
|
|
|
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
|
|
unsigned long off)
|
|
{
|
|
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
|
|
}
|
|
|
|
static inline int fb_is_primary_device(struct fb_info *info)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* __ASM_FB_H_ */
|