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>
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "global.h"
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int viafb_platform_epia_dvi = STATE_OFF;
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int viafb_device_lcd_dualedge = STATE_OFF;
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int viafb_bus_width = 12;
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int viafb_display_hardware_layout = HW_LAYOUT_LCD_DVI;
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int viafb_memsize;
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int viafb_DeviceStatus = CRT_Device;
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int viafb_hotplug;
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int viafb_refresh = 60;
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int viafb_refresh1 = 60;
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int viafb_lcd_dsp_method = LCD_EXPANDSION;
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int viafb_lcd_mode = LCD_OPENLDI;
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int viafb_bpp = 32;
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int viafb_bpp1 = 32;
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int viafb_accel = 1;
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int viafb_CRT_ON = 1;
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int viafb_DVI_ON;
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int viafb_LCD_ON ;
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int viafb_LCD2_ON;
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int viafb_SAMM_ON;
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int viafb_dual_fb;
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int viafb_hotplug_Xres = 640;
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int viafb_hotplug_Yres = 480;
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int viafb_hotplug_bpp = 32;
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int viafb_hotplug_refresh = 60;
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unsigned int viafb_second_offset;
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int viafb_second_size;
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int viafb_primary_dev = None_Device;
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unsigned int viafb_second_xres = 640;
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unsigned int viafb_second_yres = 480;
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unsigned int viafb_second_virtual_xres;
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unsigned int viafb_second_virtual_yres;
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int viafb_lcd_panel_id = LCD_PANEL_ID_MAXIMUM + 1;
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struct fb_cursor viacursor;
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struct fb_info *viafbinfo;
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struct fb_info *viafbinfo1;
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struct viafb_par *viaparinfo;
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struct viafb_par *viaparinfo1;
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