forked from luck/tmp_suning_uos_patched
db88e382a0
Clean the handling of ioremapped video memory up. The following changes were made: info->screen_base - viafb_FB_MM (VRAM offset calculation) was replaced by info->fix.smem_start - viafbinfo->fix.smem_start which is essentially the same calculation but done with physical instead virtual addresses. *->fbmem_virt was replaced by viafbinfo->screen_base This is true for viafbinfo and viafbinfo1 as the par pointers are equal. An early initialization of viafbinfo1->fix.smem* was removed as done later in viafb_setup_fixinfo. This patch highlights that the only usage of the ioremapped video memory in the driver is for hardware cursor handling. Even if it has to hold the used virtual screen mapped for old-fashioned read/write calls (vs. mmap'ed) a lot virtual memory could be saved by only ioremapping on demand. Code cleanup, no runtime changes expected. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Harald Welte <laforge@gnumonks.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
|
|
* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
|
|
* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
|
|
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License as published by the Free Software Foundation;
|
|
* either version 2, or (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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, write to the Free Software
|
|
* Foundation, Inc.,
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifndef __GLOBAL_H__
|
|
#define __GLOBAL_H__
|
|
|
|
#include <linux/fb.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/io.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/init.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <linux/console.h>
|
|
#include <linux/timer.h>
|
|
|
|
#include "debug.h"
|
|
|
|
#include "iface.h"
|
|
#include "viafbdev.h"
|
|
#include "chip.h"
|
|
#include "accel.h"
|
|
#include "share.h"
|
|
#include "dvi.h"
|
|
#include "viamode.h"
|
|
#include "via_i2c.h"
|
|
#include "hw.h"
|
|
|
|
#include "lcd.h"
|
|
#include "ioctl.h"
|
|
#include "via_utility.h"
|
|
#include "vt1636.h"
|
|
#include "tblDPASetting.h"
|
|
#include "tbl1636.h"
|
|
|
|
/* External struct*/
|
|
|
|
extern int viafb_platform_epia_dvi;
|
|
extern int viafb_device_lcd_dualedge;
|
|
extern int viafb_bus_width;
|
|
extern int viafb_display_hardware_layout;
|
|
extern struct offset offset_reg;
|
|
extern struct viafb_par *viaparinfo;
|
|
extern struct viafb_par *viaparinfo1;
|
|
extern struct fb_info *viafbinfo;
|
|
extern struct fb_info *viafbinfo1;
|
|
extern int viafb_DeviceStatus;
|
|
extern int viafb_refresh;
|
|
extern int viafb_refresh1;
|
|
extern int viafb_lcd_dsp_method;
|
|
extern int viafb_lcd_mode;
|
|
extern int viafb_bpp;
|
|
extern int viafb_bpp1;
|
|
|
|
extern int viafb_CRT_ON;
|
|
extern int viafb_hotplug_Xres;
|
|
extern int viafb_hotplug_Yres;
|
|
extern int viafb_hotplug_bpp;
|
|
extern int viafb_hotplug_refresh;
|
|
extern int viafb_primary_dev;
|
|
extern struct fb_cursor viacursor;
|
|
|
|
extern unsigned int viafb_second_xres;
|
|
extern unsigned int viafb_second_yres;
|
|
extern int viafb_lcd_panel_id;
|
|
|
|
#endif /* __GLOBAL_H__ */
|