fbdev/intelfb: Remove driver

From looking at the PCI IDs, every device supported by intelfb is
also supported by i915. Anyone still using intelfb should please
move on to i915, which does everything intelfb does but better.

Removing intelfb is motivated by the driver's excessive use of the
global screen_info state. The state belongs to architecture and
firmware code; device drivers should not attempt to access it. But
fixing intelfb would require a significant change in the driver's
probing logic. As intelfb has been obsolete for nearly 2 decades,
it is probably not worth the effort. Let's just remove it. Also
remove the related documentation.

Signed-off-by: Thomas Zimmermann <[e-mail]>
Acked-by: Maik Broemme <[e-mail]>
Signed-off-by: Helge Deller <[e-mail]>

Documentation/fb/index.rst

···
     framebuffer
     gxfb
     intel810
-    intelfb
     internals
     lxfb
     matroxfb

Documentation/fb/intelfb.rst

···
-=============================================================
-Intel 830M/845G/852GM/855GM/865G/915G/945G Framebuffer driver
-=============================================================
-
-A. Introduction
-===============
-
-This is a framebuffer driver for various Intel 8xx/9xx compatible
-graphics devices.  These would include:
-
-	- Intel 830M
-	- Intel 845G
-	- Intel 852GM
-	- Intel 855GM
-	- Intel 865G
-	- Intel 915G
-	- Intel 915GM
-	- Intel 945G
-	- Intel 945GM
-	- Intel 945GME
-	- Intel 965G
-	- Intel 965GM
-
-B.  List of available options
-=============================
-
-   a. "video=intelfb"
-	enables the intelfb driver
-
-	Recommendation: required
-
-   b. "mode=<xres>x<yres>[-<bpp>][@<refresh>]"
-	select mode
-
-	Recommendation: user preference
-	(default = 1024x768-32@70)
-
-   c. "vram=<value>"
-	select amount of system RAM in MB to allocate for the video memory
-	if not enough RAM was already allocated by the BIOS.
-
-	Recommendation: 1 - 4 MB.
-	(default = 4 MB)
-
-   d. "voffset=<value>"
-	select at what offset in MB of the logical memory to allocate the
-	framebuffer memory.  The intent is to avoid the memory blocks
-	used by standard graphics applications (XFree86). Depending on your
-	usage, adjust the value up or down, (0 for maximum usage, 63/127 MB
-	for the least amount).  Note, an arbitrary setting may conflict
-	with XFree86.
-
-	Recommendation: do not set
-	(default = 48 MB)
-
-   e. "accel"
-	enable text acceleration.  This can be enabled/reenabled anytime
-	by using 'fbset -accel true/false'.
-
-	Recommendation: enable
-	(default = set)
-
-   f. "hwcursor"
-	enable cursor acceleration.
-
-	Recommendation: enable
-	(default = set)
-
-   g. "mtrr"
-	enable MTRR.  This allows data transfers to the framebuffer memory
-	to occur in bursts which can significantly increase performance.
-	Not very helpful with the intel chips because of 'shared memory'.
-
-	Recommendation: set
-	(default = set)
-
-   h. "fixed"
-	disable mode switching.
-
-	Recommendation: do not set
-	(default = not set)
-
-   The binary parameters can be unset with a "no" prefix, example "noaccel".
-   The default parameter (not named) is the mode.
-
-C. Kernel booting
-=================
-
-Separate each option/option-pair by commas (,) and the option from its value
-with an equals sign (=) as in the following::
-
-	video=intelfb:option1,option2=value2
-
-Sample Usage
-------------
-
-In /etc/lilo.conf, add the line::
-
-	append="video=intelfb:mode=800x600-32@75,accel,hwcursor,vram=8"
-
-This will initialize the framebuffer to 800x600 at 32bpp and 75Hz. The
-framebuffer will use 8 MB of System RAM. hw acceleration of text and cursor
-will be enabled.
-
-Remarks
--------
-
-If setting this parameter doesn't work (you stay in a 80x25 text-mode),
-you might need to set the "vga=<mode>" parameter too - see vesafb.txt
-in this directory.
-
-
-D.  Module options
-==================
-
-The module parameters are essentially similar to the kernel
-parameters. The main difference is that you need to include a Boolean value
-(1 for TRUE, and 0 for FALSE) for those options which don't need a value.
-
-Example, to enable MTRR, include "mtrr=1".
-
-Sample Usage
-------------
-
-Using the same setup as described above, load the module like this::
-
-	modprobe intelfb mode=800x600-32@75 vram=8 accel=1 hwcursor=1
-
-Or just add the following to a configuration file in /etc/modprobe.d/::
-
-	options intelfb mode=800x600-32@75 vram=8 accel=1 hwcursor=1
-
-and just do a::
-
-	modprobe intelfb
-
-
-E.  Acknowledgment:
-===================
-
-	1.  Geert Uytterhoeven - his excellent howto and the virtual
-	    framebuffer driver code made this possible.
-
-	2.  Jeff Hartmann for his agpgart code.
-
-	3.  David Dawes for his original kernel 2.4 code.
-
-	4.  The X developers.  Insights were provided just by reading the
-	    XFree86 source code.
-
-	5.  Antonino A. Daplas for his inspiring i810fb driver.
-
-	6.  Andrew Morton for his kernel patches maintenance.
-
-Sylvain

Documentation/userspace-api/ioctl/ioctl-number.rst

···
 'F'   all    linux/fb.h                                              conflict!
 'F'   01-02  drivers/scsi/pmcraid.h                                  conflict!
 'F'   20     drivers/video/fsl-diu-fb.h                              conflict!
-'F'   20     drivers/video/intelfb/intelfb.h                         conflict!
 'F'   20     linux/ivtvfb.h                                          conflict!
 'F'   20     linux/matroxfb.h                                        conflict!
 'F'   20     drivers/video/aty/atyfb_base.c                          conflict!

MAINTAINERS

···
 F:	drivers/infiniband/hw/irdma/
 F:	include/uapi/rdma/irdma-abi.h
 
-INTEL FRAMEBUFFER DRIVER (excluding 810 and 815)
-M:	Maik Broemme <[e-mail]>
-L:	[e-mail]
-S:	Maintained
-F:	Documentation/fb/intelfb.rst
-F:	drivers/video/fbdev/intelfb/
-
 INTEL GPIO DRIVERS
 M:	Andy Shevchenko <[e-mail]>
 L:	[e-mail]

drivers/Makefile

···
 
 obj-$(CONFIG_CONNECTOR)		+= connector/
 
-# i810fb and intelfb depend on char/agp/
+# i810fb depends on char/agp/
 obj-$(CONFIG_FB_I810)           += video/fbdev/i810/
-obj-$(CONFIG_FB_INTEL)          += video/fbdev/intelfb/
 
 obj-$(CONFIG_PARPORT)		+= parport/
 obj-y				+= base/ block/ misc/ mfd/ nfc/

drivers/video/fbdev/Kconfig

···
 
 	  If unsure, say Y.
 
-config FB_INTEL
-	tristate "Intel 830M/845G/852GM/855GM/865G/915G/945G/945GM/965G/965GM support"
-	depends on FB && PCI && X86 && AGP_INTEL && EXPERT
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
-	select FB_IOMEM_FOPS
-	select FB_MODE_HELPERS
-	select BOOT_VESA_SUPPORT if FB_INTEL = y
-	select VIDEO_NOMODESET
-	depends on !DRM_I915
-	help
-	  This driver supports the on-board graphics built in to the Intel
-	  830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM chipsets.
-	  Say Y if you have and plan to use such a board.
-
-	  To make FB_INTEL=Y work you need to say AGP_INTEL=y too.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called intelfb.
-
-	  For more information, please read <file:Documentation/fb/intelfb.rst>
-
-config FB_INTEL_DEBUG
-	bool "Intel driver Debug Messages"
-	depends on FB_INTEL
-	help
-	  Say Y here if you want the Intel driver to output all sorts
-	  of debugging information to provide to the maintainer when
-	  something goes wrong.
-
-config FB_INTEL_I2C
-	bool "DDC/I2C for Intel framebuffer support"
-	depends on FB_INTEL
-	select FB_DDC
-	default y
-	help
-	  Say Y here if you want DDC/I2C support for your on-board Intel graphics.
-
 config FB_MATROX
 	tristate "Matrox acceleration"
 	depends on FB && PCI

drivers/video/fbdev/intelfb/Makefile

···
-# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_FB_INTEL) += intelfb.o
-
-intelfb-y := intelfbdrv.o intelfbhw.o
-intelfb-$(CONFIG_FB_INTEL_I2C) += intelfb_i2c.o
-intelfb-objs := $(intelfb-y)
-
-ccflags-$(CONFIG_FB_INTEL_DEBUG) := -DDEBUG -DREGDUMP

drivers/video/fbdev/intelfb/intelfb.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _INTELFB_H
-#define _INTELFB_H
-
-/* $DHD: intelfb/intelfb.h,v 1.40 2003/06/27 15:06:25 dawes Exp $ */
-
-#include <linux/agp_backend.h>
-#include <linux/fb.h>
-
-#ifdef CONFIG_FB_INTEL_I2C
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#endif
-
-/*** Version/name ***/
-#define INTELFB_VERSION			"0.9.6"
-#define INTELFB_MODULE_NAME		"intelfb"
-#define SUPPORTED_CHIPSETS		"830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/945GME/965G/965GM"
-
-
-/*** Debug/feature defines ***/
-
-#ifndef DEBUG
-#define DEBUG				0
-#endif
-
-#ifndef VERBOSE
-#define VERBOSE				0
-#endif
-
-#ifndef REGDUMP
-#define REGDUMP				0
-#endif
-
-#ifndef DETECT_VGA_CLASS_ONLY
-#define DETECT_VGA_CLASS_ONLY		1
-#endif
-
-#ifndef ALLOCATE_FOR_PANNING
-#define ALLOCATE_FOR_PANNING		1
-#endif
-
-#ifndef PREFERRED_MODE
-#define PREFERRED_MODE			"1024x768-32@70"
-#endif
-
-/*** hw-related values ***/
-
-/* Resource Allocation */
-#define INTELFB_FB_ACQUIRED                 1
-#define INTELFB_MMIO_ACQUIRED               2
-
-/* PCI ids for supported devices */
-#define PCI_DEVICE_ID_INTEL_830M	0x3577
-#define PCI_DEVICE_ID_INTEL_845G	0x2562
-#define PCI_DEVICE_ID_INTEL_85XGM	0x3582
-#define PCI_DEVICE_ID_INTEL_854		0x358E
-#define PCI_DEVICE_ID_INTEL_865G	0x2572
-#define PCI_DEVICE_ID_INTEL_915G	0x2582
-#define PCI_DEVICE_ID_INTEL_915GM	0x2592
-#define PCI_DEVICE_ID_INTEL_945G	0x2772
-#define PCI_DEVICE_ID_INTEL_945GM	0x27A2
-#define PCI_DEVICE_ID_INTEL_945GME	0x27AE
-#define PCI_DEVICE_ID_INTEL_965G	0x29A2
-#define PCI_DEVICE_ID_INTEL_965GM	0x2A02
-
-/* Size of MMIO region */
-#define INTEL_REG_SIZE			0x80000
-
-#define STRIDE_ALIGNMENT		16
-#define STRIDE_ALIGNMENT_I9XX		64
-
-#define PALETTE_8_ENTRIES		256
-
-
-/*** Macros ***/
-
-/* basic arithmetic */
-#define KB(x)			((x) * 1024)
-#define MB(x)			((x) * 1024 * 1024)
-#define BtoKB(x)		((x) / 1024)
-#define BtoMB(x)		((x) / 1024 / 1024)
-
-#define GTT_PAGE_SIZE           KB(4)
-
-#define ROUND_UP_TO(x, y)	(((x) + (y) - 1) / (y) * (y))
-#define ROUND_DOWN_TO(x, y)	((x) / (y) * (y))
-#define ROUND_UP_TO_PAGE(x)	ROUND_UP_TO((x), GTT_PAGE_SIZE)
-#define ROUND_DOWN_TO_PAGE(x)	ROUND_DOWN_TO((x), GTT_PAGE_SIZE)
-
-/* messages */
-#define PFX			INTELFB_MODULE_NAME ": "
-
-#define ERR_MSG(fmt, args...)	printk(KERN_ERR PFX fmt, ## args)
-#define WRN_MSG(fmt, args...)	printk(KERN_WARNING PFX fmt, ## args)
-#define NOT_MSG(fmt, args...)	printk(KERN_NOTICE PFX fmt, ## args)
-#define INF_MSG(fmt, args...)	printk(KERN_INFO PFX fmt, ## args)
-#if DEBUG
-#define DBG_MSG(fmt, args...)	printk(KERN_DEBUG PFX fmt, ## args)
-#else
-#define DBG_MSG(fmt, args...)	while (0) printk(fmt, ## args)
-#endif
-
-/* get commonly used pointers */
-#define GET_DINFO(info)		(info)->par
-
-/* misc macros */
-#define ACCEL(d, i)                                                     \
-	((d)->accel && !(d)->ring_lockup &&                             \
-	 ((i)->var.accel_flags & FB_ACCELF_TEXT))
-
-/*#define NOACCEL_CHIPSET(d)						\
-	((d)->chipset != INTEL_865G)*/
-#define NOACCEL_CHIPSET(d)						\
-	(0)
-
-#define FIXED_MODE(d) ((d)->fixed_mode)
-
-/*** Driver parameters ***/
-
-#define RINGBUFFER_SIZE		KB(64)
-#define HW_CURSOR_SIZE		KB(4)
-
-/* Intel agpgart driver */
-#define AGP_PHYSICAL_MEMORY     2
-
-/* store information about an Ixxx DVO */
-/* The i830->i865 use multiple DVOs with multiple i2cs */
-/* the i915, i945 have a single sDVO i2c bus - which is different */
-#define MAX_OUTPUTS 6
-
-/* these are outputs from the chip - integrated only
-   external chips are via DVO or SDVO output */
-#define INTELFB_OUTPUT_UNUSED 0
-#define INTELFB_OUTPUT_ANALOG 1
-#define INTELFB_OUTPUT_DVO 2
-#define INTELFB_OUTPUT_SDVO 3
-#define INTELFB_OUTPUT_LVDS 4
-#define INTELFB_OUTPUT_TVOUT 5
-
-#define INTELFB_DVO_CHIP_NONE 0
-#define INTELFB_DVO_CHIP_LVDS 1
-#define INTELFB_DVO_CHIP_TMDS 2
-#define INTELFB_DVO_CHIP_TVOUT 4
-
-#define INTELFB_OUTPUT_PIPE_NC  0
-#define INTELFB_OUTPUT_PIPE_A   1
-#define INTELFB_OUTPUT_PIPE_B   2
-
-/*** Data Types ***/
-
-/* supported chipsets */
-enum intel_chips {
-	INTEL_830M,
-	INTEL_845G,
-	INTEL_85XGM,
-	INTEL_852GM,
-	INTEL_852GME,
-	INTEL_854,
-	INTEL_855GM,
-	INTEL_855GME,
-	INTEL_865G,
-	INTEL_915G,
-	INTEL_915GM,
-	INTEL_945G,
-	INTEL_945GM,
-	INTEL_945GME,
-	INTEL_965G,
-	INTEL_965GM,
-};
-
-struct intelfb_hwstate {
-	u32 vga0_divisor;
-	u32 vga1_divisor;
-	u32 vga_pd;
-	u32 dpll_a;
-	u32 dpll_b;
-	u32 fpa0;
-	u32 fpa1;
-	u32 fpb0;
-	u32 fpb1;
-	u32 palette_a[PALETTE_8_ENTRIES];
-	u32 palette_b[PALETTE_8_ENTRIES];
-	u32 htotal_a;
-	u32 hblank_a;
-	u32 hsync_a;
-	u32 vtotal_a;
-	u32 vblank_a;
-	u32 vsync_a;
-	u32 src_size_a;
-	u32 bclrpat_a;
-	u32 htotal_b;
-	u32 hblank_b;
-	u32 hsync_b;
-	u32 vtotal_b;
-	u32 vblank_b;
-	u32 vsync_b;
-	u32 src_size_b;
-	u32 bclrpat_b;
-	u32 adpa;
-	u32 dvoa;
-	u32 dvob;
-	u32 dvoc;
-	u32 dvoa_srcdim;
-	u32 dvob_srcdim;
-	u32 dvoc_srcdim;
-	u32 lvds;
-	u32 pipe_a_conf;
-	u32 pipe_b_conf;
-	u32 disp_arb;
-	u32 cursor_a_control;
-	u32 cursor_b_control;
-	u32 cursor_a_base;
-	u32 cursor_b_base;
-	u32 cursor_size;
-	u32 disp_a_ctrl;
-	u32 disp_b_ctrl;
-	u32 disp_a_base;
-	u32 disp_b_base;
-	u32 cursor_a_palette[4];
-	u32 cursor_b_palette[4];
-	u32 disp_a_stride;
-	u32 disp_b_stride;
-	u32 vgacntrl;
-	u32 add_id;
-	u32 swf0x[7];
-	u32 swf1x[7];
-	u32 swf3x[3];
-	u32 fence[8];
-	u32 instpm;
-	u32 mem_mode;
-	u32 fw_blc_0;
-	u32 fw_blc_1;
-	u16 hwstam;
-	u16 ier;
-	u16 iir;
-	u16 imr;
-};
-
-struct intelfb_heap_data {
-	u32 physical;
-	u8 __iomem *virtual;
-	u32 offset;		/* in GATT pages */
-	u32 size;		/* in bytes */
-};
-
-#ifdef CONFIG_FB_INTEL_I2C
-struct intelfb_i2c_chan {
-    struct intelfb_info *dinfo;
-    u32 reg;
-    struct i2c_adapter adapter;
-    struct i2c_algo_bit_data algo;
-};
-#endif
-
-struct intelfb_output_rec {
-    int type;
-    int pipe;
-    int flags;
-
-#ifdef CONFIG_FB_INTEL_I2C
-    struct intelfb_i2c_chan i2c_bus;
-    struct intelfb_i2c_chan ddc_bus;
-#endif
-};
-
-struct intelfb_vsync {
-	wait_queue_head_t wait;
-	unsigned int count;
-	int pan_display;
-	u32 pan_offset;
-};
-
-struct intelfb_info {
-	struct fb_info *info;
-	const struct fb_ops *fbops;
-	struct pci_dev *pdev;
-
-	struct intelfb_hwstate save_state;
-
-	/* agpgart structs */
-	struct agp_memory *gtt_fb_mem;     /* use all stolen memory or vram */
-	struct agp_memory *gtt_ring_mem;   /* ring buffer */
-	struct agp_memory *gtt_cursor_mem; /* hw cursor */
-
-	/* use a gart reserved fb mem */
-	u8 fbmem_gart;
-
-	int wc_cookie;
-
-	/* heap data */
-	struct intelfb_heap_data aperture;
-	struct intelfb_heap_data fb;
-	struct intelfb_heap_data ring;
-	struct intelfb_heap_data cursor;
-
-	/* mmio regs */
-	u32 mmio_base_phys;
-	u8 __iomem *mmio_base;
-
-	/* fb start offset (in bytes) */
-	u32 fb_start;
-
-	/* ring buffer */
-	u32 ring_head;
-	u32 ring_tail;
-	u32 ring_tail_mask;
-	u32 ring_space;
-	u32 ring_lockup;
-
-	/* palette */
-	u32 pseudo_palette[16];
-
-	/* chip info */
-	int pci_chipset;
-	int chipset;
-	const char *name;
-	int mobile;
-
-	/* current mode */
-	int bpp, depth;
-	u32 visual;
-	int xres, yres, pitch;
-	int pixclock;
-
-	/* current pipe */
-	int pipe;
-
-	/* some flags */
-	int accel;
-	int hwcursor;
-	int fixed_mode;
-	int ring_active;
-	int flag;
-	unsigned long irq_flags;
-	int open;
-
-	/* vsync */
-	struct intelfb_vsync vsync;
-	spinlock_t int_lock;
-
-	/* hw cursor */
-	int cursor_on;
-	int cursor_blanked;
-	u8  cursor_src[64];
-
-	/* initial parameters */
-	int initial_vga;
-	struct fb_var_screeninfo initial_var;
-	u32 initial_fb_base;
-	u32 initial_video_ram;
-	u32 initial_pitch;
-
-	/* driver registered */
-	int registered;
-
-	/* index into plls */
-	int pll_index;
-
-	/* outputs */
-	int num_outputs;
-	struct intelfb_output_rec output[MAX_OUTPUTS];
-};
-
-#define IS_I9XX(dinfo) (((dinfo)->chipset == INTEL_915G) ||	\
-			((dinfo)->chipset == INTEL_915GM) ||	\
-			((dinfo)->chipset == INTEL_945G) ||	\
-			((dinfo)->chipset == INTEL_945GM) ||	\
-			((dinfo)->chipset == INTEL_945GME) ||	\
-			((dinfo)->chipset == INTEL_965G) ||	\
-			((dinfo)->chipset == INTEL_965GM))
-
-/*** function prototypes ***/
-
-extern int intelfb_var_to_depth(const struct fb_var_screeninfo *var);
-
-#ifdef CONFIG_FB_INTEL_I2C
-extern void intelfb_create_i2c_busses(struct intelfb_info *dinfo);
-extern void intelfb_delete_i2c_busses(struct intelfb_info *dinfo);
-#endif
-
-#endif /* _INTELFB_H */

drivers/video/fbdev/intelfb/intelfb_i2c.c

···
-/**************************************************************************
-
- Copyright 2006 Dave Airlie <[e-mail]>
-
-All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-on the rights to use, copy, modify, merge, publish, distribute, sub
-license, and/or sell copies of the Software, and to permit persons to whom
-the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice (including the next
-paragraph) shall be included in all copies or substantial portions of the
-Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
-THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
-DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/fb.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-
-#include <asm/io.h>
-
-#include "intelfb.h"
-#include "intelfbhw.h"
-
-/* bit locations in the registers */
-#define SCL_DIR_MASK		0x0001
-#define SCL_DIR			0x0002
-#define SCL_VAL_MASK		0x0004
-#define SCL_VAL_OUT		0x0008
-#define SCL_VAL_IN		0x0010
-#define SDA_DIR_MASK		0x0100
-#define SDA_DIR			0x0200
-#define SDA_VAL_MASK		0x0400
-#define SDA_VAL_OUT		0x0800
-#define SDA_VAL_IN		0x1000
-
-static void intelfb_gpio_setscl(void *data, int state)
-{
-	struct intelfb_i2c_chan *chan = data;
-	struct intelfb_info *dinfo = chan->dinfo;
-	u32 val;
-
-	OUTREG(chan->reg, (state ? SCL_VAL_OUT : 0) |
-	       SCL_DIR | SCL_DIR_MASK | SCL_VAL_MASK);
-	val = INREG(chan->reg);
-}
-
-static void intelfb_gpio_setsda(void *data, int state)
-{
-	struct intelfb_i2c_chan *chan = data;
-	struct intelfb_info *dinfo = chan->dinfo;
-	u32 val;
-
-	OUTREG(chan->reg, (state ? SDA_VAL_OUT : 0) |
-	       SDA_DIR | SDA_DIR_MASK | SDA_VAL_MASK);
-	val = INREG(chan->reg);
-}
-
-static int intelfb_gpio_getscl(void *data)
-{
-	struct intelfb_i2c_chan *chan = data;
-	struct intelfb_info *dinfo = chan->dinfo;
-	u32 val;
-
-	OUTREG(chan->reg, SCL_DIR_MASK);
-	OUTREG(chan->reg, 0);
-	val = INREG(chan->reg);
-	return ((val & SCL_VAL_IN) != 0);
-}
-
-static int intelfb_gpio_getsda(void *data)
-{
-	struct intelfb_i2c_chan *chan = data;
-	struct intelfb_info *dinfo = chan->dinfo;
-	u32 val;
-
-	OUTREG(chan->reg, SDA_DIR_MASK);
-	OUTREG(chan->reg, 0);
-	val = INREG(chan->reg);
-	return ((val & SDA_VAL_IN) != 0);
-}
-
-static int intelfb_setup_i2c_bus(struct intelfb_info *dinfo,
-				 struct intelfb_i2c_chan *chan,
-				 const u32 reg, const char *name,
-				 int class)
-{
-	int rc;
-
-	chan->dinfo			= dinfo;
-	chan->reg			= reg;
-	snprintf(chan->adapter.name, sizeof(chan->adapter.name),
-		 "intelfb %s", name);
-	chan->adapter.class		= class;
-	chan->adapter.owner		= THIS_MODULE;
-	chan->adapter.algo_data		= &chan->algo;
-	chan->adapter.dev.parent	= &chan->dinfo->pdev->dev;
-	chan->algo.setsda		= intelfb_gpio_setsda;
-	chan->algo.setscl		= intelfb_gpio_setscl;
-	chan->algo.getsda		= intelfb_gpio_getsda;
-	chan->algo.getscl		= intelfb_gpio_getscl;
-	chan->algo.udelay		= 40;
-	chan->algo.timeout		= 20;
-	chan->algo.data			= chan;
-
-	i2c_set_adapdata(&chan->adapter, chan);
-
-	/* Raise SCL and SDA */
-	intelfb_gpio_setsda(chan, 1);
-	intelfb_gpio_setscl(chan, 1);
-	udelay(20);
-
-	rc = i2c_bit_add_bus(&chan->adapter);
-	if (rc == 0)
-		DBG_MSG("I2C bus %s registered.\n", name);
-	else
-		WRN_MSG("Failed to register I2C bus %s.\n", name);
-	return rc;
-}
-
-void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
-{
-	int i = 0;
-
-	/* everyone has at least a single analog output */
-	dinfo->num_outputs = 1;
-	dinfo->output[i].type = INTELFB_OUTPUT_ANALOG;
-
-	/* setup the DDC bus for analog output */
-	intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, GPIOA,
-			      "CRTDDC_A", I2C_CLASS_DDC);
-	i++;
-
-	/* need to add the output busses for each device
-	   - this function is very incomplete
-	   - i915GM has LVDS and TVOUT for example
-	*/
-	switch(dinfo->chipset) {
-	case INTEL_830M:
-	case INTEL_845G:
-	case INTEL_854:
-	case INTEL_855GM:
-	case INTEL_865G:
-		dinfo->output[i].type = INTELFB_OUTPUT_DVO;
-		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus,
-				      GPIOD, "DVODDC_D", I2C_CLASS_DDC);
-		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-				      GPIOE, "DVOI2C_E", 0);
-		i++;
-		break;
-	case INTEL_915G:
-	case INTEL_915GM:
-		/* has some LVDS + tv-out */
-	case INTEL_945G:
-	case INTEL_945GM:
-	case INTEL_945GME:
-	case INTEL_965G:
-	case INTEL_965GM:
-		/* SDVO ports have a single control bus - 2 devices */
-		dinfo->output[i].type = INTELFB_OUTPUT_SDVO;
-		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,
-				      GPIOE, "SDVOCTRL_E", 0);
-		/* TODO: initialize the SDVO */
-		/* I830SDVOInit(pScrn, i, DVOB); */
-		i++;
-
-		/* set up SDVOC */
-		dinfo->output[i].type = INTELFB_OUTPUT_SDVO;
-		dinfo->output[i].i2c_bus = dinfo->output[i - 1].i2c_bus;
-		/* TODO: initialize the SDVO */
-		/* I830SDVOInit(pScrn, i, DVOC); */
-		i++;
-		break;
-	}
-	dinfo->num_outputs = i;
-}
-
-void intelfb_delete_i2c_busses(struct intelfb_info *dinfo)
-{
-	int i;
-
-	for (i = 0; i < MAX_OUTPUTS; i++) {
-		if (dinfo->output[i].i2c_bus.dinfo) {
-			i2c_del_adapter(&dinfo->output[i].i2c_bus.adapter);
-			dinfo->output[i].i2c_bus.dinfo = NULL;
-		}
-		if (dinfo->output[i].ddc_bus.dinfo) {
-			i2c_del_adapter(&dinfo->output[i].ddc_bus.adapter);
-			dinfo->output[i].ddc_bus.dinfo = NULL;
-		}
-	}
-}

drivers/video/fbdev/intelfb/intelfbdrv.c

···
-/*
- * intelfb
- *
- * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/
- * 945G/945GM/945GME/965G/965GM integrated graphics chips.
- *
- * Copyright © 2002, 2003 David Dawes <[e-mail]>
- *                   2004 Sylvain Meyer
- *                   2006 David Airlie
- *
- * This driver consists of two parts.  The first part (intelfbdrv.c) provides
- * the basic fbdev interfaces, is derived in part from the radeonfb and
- * vesafb drivers, and is covered by the GPL.  The second part (intelfbhw.c)
- * provides the code to program the hardware.  Most of it is derived from
- * the i810/i830 XFree86 driver.  The HW-specific code is covered here
- * under a dual license (GPL and MIT/XFree86 license).
- *
- * Author: David Dawes
- *
- */
-
-/* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */
-
-/*
- * Changes:
- *    01/2003 - Initial driver (0.1.0), no mode switching, no acceleration.
- *		This initial version is a basic core that works a lot like
- *		the vesafb driver.  It must be built-in to the kernel,
- *		and the initial video mode must be set with vga=XXX at
- *		boot time.  (David Dawes)
- *
- *    01/2003 - Version 0.2.0: Mode switching added, colormap support
- *		implemented, Y panning, and soft screen blanking implemented.
- *		No acceleration yet.  (David Dawes)
- *
- *    01/2003 - Version 0.3.0: fbcon acceleration support added.  Module
- *		option handling added.  (David Dawes)
- *
- *    01/2003 - Version 0.4.0: fbcon HW cursor support added.  (David Dawes)
- *
- *    01/2003 - Version 0.4.1: Add auto-generation of built-in modes.
- *		(David Dawes)
- *
- *    02/2003 - Version 0.4.2: Add check for active non-CRT devices, and
- *		mode validation checks.  (David Dawes)
- *
- *    02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that
- *		acceleration is disabled while an XFree86 server is running.
- *		(David Dawes)
- *
- *    02/2003 - Version 0.4.4: Monitor DPMS support.  (David Dawes)
- *
- *    02/2003 - Version 0.4.5: Basic XFree86 + fbdev working.  (David Dawes)
- *
- *    02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well
- *		as 2.4.x kernels.  (David Dawes)
- *
- *    02/2003 - Version 0.6.0: Split out HW-specifics into a separate file.
- *		(David Dawes)
- *
- *    02/2003 - Version 0.7.0: Test on 852GM/855GM.  Acceleration and HW
- *		cursor are disabled on this platform.  (David Dawes)
- *
- *    02/2003 - Version 0.7.1: Test on 845G.  Acceleration is disabled
- *		on this platform.  (David Dawes)
- *
- *    02/2003 - Version 0.7.2: Test on 830M.  Acceleration and HW
- *		cursor are disabled on this platform.  (David Dawes)
- *
- *    02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms
- *		(David Dawes)
- *
- *    02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured
- *		in the kernel, and add mode bpp verification and default
- *		bpp selection based on which FBCON_HAS_CFB* are configured.
- *		(David Dawes)
- *
- *    02/2003 - Version 0.7.5: Add basic package/install scripts based on the
- *		DRI packaging scripts.  (David Dawes)
- *
- *    04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled
- *		kernels.  (David Dawes, reported by Anupam).
- *
- *    06/2003 - Version 0.7.7:
- *              Fix Makefile.kernel build problem (Tsutomu Yasuda).
- *		Fix mis-placed #endif (2.4.21 kernel).
- *
- *    09/2004 - Version 0.9.0 - by Sylvain Meyer
- *              Port to linux 2.6 kernel fbdev
- *              Fix HW accel and HW cursor on i845G
- *              Use of agpgart for fb memory reservation
- *              Add mtrr support
- *
- *    10/2004 - Version 0.9.1
- *              Use module_param instead of old MODULE_PARM
- *              Some cleanup
- *
- *    11/2004 - Version 0.9.2
- *              Add vram option to reserve more memory than stolen by BIOS
- *              Fix intelfbhw_pan_display typo
- *              Add __initdata annotations
- *
- *    04/2008 - Version 0.9.5
- *              Add support for 965G/965GM. (Maik Broemme <[e-mail]>)
- *
- *    08/2008 - Version 0.9.6
- *              Add support for 945GME. (Phil Endecott <[e-mail]>)
- */
-
-#include <linux/aperture.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
-#include <linux/screen_info.h>
-
-#include <asm/io.h>
-
-#include "intelfb.h"
-#include "intelfbhw.h"
-#include "../edid.h"
-
-static void get_initial_mode(struct intelfb_info *dinfo);
-static void update_dinfo(struct intelfb_info *dinfo,
-			 struct fb_var_screeninfo *var);
-static int intelfb_open(struct fb_info *info, int user);
-static int intelfb_release(struct fb_info *info, int user);
-static int intelfb_check_var(struct fb_var_screeninfo *var,
-			     struct fb_info *info);
-static int intelfb_set_par(struct fb_info *info);
-static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
-			     unsigned blue, unsigned transp,
-			     struct fb_info *info);
-
-static int intelfb_blank(int blank, struct fb_info *info);
-static int intelfb_pan_display(struct fb_var_screeninfo *var,
-			       struct fb_info *info);
-
-static void intelfb_fillrect(struct fb_info *info,
-			     const struct fb_fillrect *rect);
-static void intelfb_copyarea(struct fb_info *info,
-			     const struct fb_copyarea *region);
-static void intelfb_imageblit(struct fb_info *info,
-			      const struct fb_image *image);
-static int intelfb_cursor(struct fb_info *info,
-			   struct fb_cursor *cursor);
-
-static int intelfb_sync(struct fb_info *info);
-
-static int intelfb_ioctl(struct fb_info *info,
-			 unsigned int cmd, unsigned long arg);
-
-static int intelfb_pci_register(struct pci_dev *pdev,
-				const struct pci_device_id *ent);
-static void intelfb_pci_unregister(struct pci_dev *pdev);
-static int intelfb_set_fbinfo(struct intelfb_info *dinfo);
-
-/*
- * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the
- * mobile chipsets from being registered.
- */
-#if DETECT_VGA_CLASS_ONLY
-#define INTELFB_CLASS_MASK ~0 << 8
-#else
-#define INTELFB_CLASS_MASK 0
-#endif
-
-static const struct pci_device_id intelfb_pci_table[] = {
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G },
-	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM },
-	{ 0, }
-};
-
-/* Global data */
-static int num_registered = 0;
-
-/* fb ops */
-static const struct fb_ops intel_fb_ops = {
-	.owner =		THIS_MODULE,
-	.fb_open =              intelfb_open,
-	.fb_release =           intelfb_release,
-	__FB_DEFAULT_IOMEM_OPS_RDWR,
-	.fb_check_var =         intelfb_check_var,
-	.fb_set_par =           intelfb_set_par,
-	.fb_setcolreg =		intelfb_setcolreg,
-	.fb_blank =		intelfb_blank,
-	.fb_pan_display =       intelfb_pan_display,
-	.fb_fillrect  =         intelfb_fillrect,
-	.fb_copyarea  =         intelfb_copyarea,
-	.fb_imageblit =         intelfb_imageblit,
-	.fb_cursor =            intelfb_cursor,
-	.fb_sync =              intelfb_sync,
-	.fb_ioctl =		intelfb_ioctl,
-	__FB_DEFAULT_IOMEM_OPS_MMAP,
-};
-
-/* PCI driver module table */
-static struct pci_driver intelfb_driver = {
-	.name =		"intelfb",
-	.id_table =	intelfb_pci_table,
-	.probe =	intelfb_pci_register,
-	.remove =	intelfb_pci_unregister,
-};
-
-/* Module description/parameters */
-MODULE_AUTHOR("David Dawes <[e-mail]>, "
-	      "Sylvain Meyer <[e-mail]>");
-MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS
-		   " chipsets");
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DEVICE_TABLE(pci, intelfb_pci_table);
-
-static bool accel       = 1;
-static int vram         = 4;
-static bool hwcursor    = 0;
-static bool mtrr        = 1;
-static bool fixed       = 0;
-static bool noinit      = 0;
-static bool noregister  = 0;
-static bool probeonly   = 0;
-static bool idonly      = 0;
-static int bailearly    = 0;
-static int voffset	= 48;
-static char *mode       = NULL;
-
-module_param(accel, bool, S_IRUGO);
-MODULE_PARM_DESC(accel, "Enable hardware acceleration");
-module_param(vram, int, S_IRUGO);
-MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB");
-module_param(voffset, int, S_IRUGO);
-MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB");
-module_param(hwcursor, bool, S_IRUGO);
-MODULE_PARM_DESC(hwcursor, "Enable HW cursor");
-module_param(mtrr, bool, S_IRUGO);
-MODULE_PARM_DESC(mtrr, "Enable MTRR support");
-module_param(fixed, bool, S_IRUGO);
-MODULE_PARM_DESC(fixed, "Disable mode switching");
-module_param(noinit, bool, 0);
-MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading");
-module_param(noregister, bool, 0);
-MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)");
-module_param(probeonly, bool, 0);
-MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)");
-module_param(idonly, bool, 0);
-MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)");
-module_param(bailearly, int, 0);
-MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)");
-module_param(mode, charp, S_IRUGO);
-MODULE_PARM_DESC(mode,
-		 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\"");
-
-#ifndef MODULE
-#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name)))
-#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0)
-#define OPT_STRVAL(opt, name) (opt + strlen(name))
-
-static __inline__ char * get_opt_string(const char *this_opt, const char *name)
-{
-	const char *p;
-	int i;
-	char *ret;
-
-	p = OPT_STRVAL(this_opt, name);
-	i = 0;
-	while (p[i] && p[i] != ' ' && p[i] != ',')
-		i++;
-	ret = kmalloc(i + 1, GFP_KERNEL);
-	if (ret) {
-		strncpy(ret, p, i);
-		ret[i] = '\0';
-	}
-	return ret;
-}
-
-static __inline__ int get_opt_int(const char *this_opt, const char *name,
-				  int *ret)
-{
-	if (!ret)
-		return 0;
-
-	if (!OPT_EQUAL(this_opt, name))
-		return 0;
-
-	*ret = OPT_INTVAL(this_opt, name);
-	return 1;
-}
-
-static __inline__ int get_opt_bool(const char *this_opt, const char *name,
-				   bool *ret)
-{
-	if (!ret)
-		return 0;
-
-	if (OPT_EQUAL(this_opt, name)) {
-		if (this_opt[strlen(name)] == '=')
-			*ret = simple_strtoul(this_opt + strlen(name) + 1,
-					      NULL, 0);
-		else
-			*ret = 1;
-	} else {
-		if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name))
-			*ret = 0;
-		else
-			return 0;
-	}
-	return 1;
-}
-
-static int __init intelfb_setup(char *options)
-{
-	char *this_opt;
-
-	DBG_MSG("intelfb_setup\n");
-
-	if (!options || !*options) {
-		DBG_MSG("no options\n");
-		return 0;
-	} else
-		DBG_MSG("options: %s\n", options);
-
-	/*
-	 * These are the built-in options analogous to the module parameters
-	 * defined above.
-	 *
-	 * The syntax is:
-	 *
-	 *    video=intelfb:[mode][,<param>=<val>] ...
-	 *
-	 * e.g.,
-	 *
-	 *    video=intelfb:1024x768-16@75,accel=0
-	 */
-
-	while ((this_opt = strsep(&options, ","))) {
-		if (!*this_opt)
-			continue;
-		if (get_opt_bool(this_opt, "accel", &accel))
-			;
-		else if (get_opt_int(this_opt, "vram", &vram))
-			;
-		else if (get_opt_bool(this_opt, "hwcursor", &hwcursor))
-			;
-		else if (get_opt_bool(this_opt, "mtrr", &mtrr))
-			;
-		else if (get_opt_bool(this_opt, "fixed", &fixed))
-			;
-		else if (get_opt_bool(this_opt, "init", &noinit))
-			noinit = !noinit;
-		else if (OPT_EQUAL(this_opt, "mode="))
-			mode = get_opt_string(this_opt, "mode=");
-		else
-			mode = this_opt;
-	}
-
-	return 0;
-}
-
-#endif
-
-static int __init intelfb_init(void)
-{
-#ifndef MODULE
-	char *option = NULL;
-#endif
-
-	DBG_MSG("intelfb_init\n");
-
-	INF_MSG("Framebuffer driver for "
-		"Intel(R) " SUPPORTED_CHIPSETS " chipsets\n");
-	INF_MSG("Version " INTELFB_VERSION "\n");
-
-	if (idonly)
-		return -ENODEV;
-
-	if (fb_modesetting_disabled("intelfb"))
-		return -ENODEV;
-
-#ifndef MODULE
-	if (fb_get_options("intelfb", &option))
-		return -ENODEV;
-	intelfb_setup(option);
-#endif
-
-	return pci_register_driver(&intelfb_driver);
-}
-
-static void __exit intelfb_exit(void)
-{
-	DBG_MSG("intelfb_exit\n");
-	pci_unregister_driver(&intelfb_driver);
-}
-
-module_init(intelfb_init);
-module_exit(intelfb_exit);
-
-/***************************************************************
- *                        driver init / cleanup                *
- ***************************************************************/
-
-static void cleanup(struct intelfb_info *dinfo)
-{
-	DBG_MSG("cleanup\n");
-
-	if (!dinfo)
-		return;
-
-	intelfbhw_disable_irq(dinfo);
-
-	fb_dealloc_cmap(&dinfo->info->cmap);
-	kfree(dinfo->info->pixmap.addr);
-
-	if (dinfo->registered)
-		unregister_framebuffer(dinfo->info);
-
-	arch_phys_wc_del(dinfo->wc_cookie);
-
-	if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) {
-		agp_unbind_memory(dinfo->gtt_fb_mem);
-		agp_free_memory(dinfo->gtt_fb_mem);
-	}
-	if (dinfo->gtt_cursor_mem) {
-		agp_unbind_memory(dinfo->gtt_cursor_mem);
-		agp_free_memory(dinfo->gtt_cursor_mem);
-	}
-	if (dinfo->gtt_ring_mem) {
-		agp_unbind_memory(dinfo->gtt_ring_mem);
-		agp_free_memory(dinfo->gtt_ring_mem);
-	}
-
-#ifdef CONFIG_FB_INTEL_I2C
-	/* un-register I2C bus */
-	intelfb_delete_i2c_busses(dinfo);
-#endif
-
-	if (dinfo->mmio_base)
-		iounmap((void __iomem *)dinfo->mmio_base);
-	if (dinfo->aperture.virtual)
-		iounmap((void __iomem *)dinfo->aperture.virtual);
-
-	if (dinfo->flag & INTELFB_MMIO_ACQUIRED)
-		release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE);
-	if (dinfo->flag & INTELFB_FB_ACQUIRED)
-		release_mem_region(dinfo->aperture.physical,
-				   dinfo->aperture.size);
-	framebuffer_release(dinfo->info);
-}
-
-#define bailout(dinfo) do {						\
-	DBG_MSG("bailout\n");						\
-	cleanup(dinfo);							\
-	INF_MSG("Not going to register framebuffer, exiting...\n");	\
-	return -ENODEV;							\
-} while (0)
-
-
-static int intelfb_pci_register(struct pci_dev *pdev,
-				const struct pci_device_id *ent)
-{
-	struct fb_info *info;
-	struct intelfb_info *dinfo;
-	int i, err, dvo;
-	int aperture_size, stolen_size = 0;
-	struct agp_kern_info gtt_info;
-	int agp_memtype;
-	const char *s;
-	struct agp_bridge_data *bridge;
-	int aperture_bar = 0;
-	int mmio_bar = 1;
-	int offset;
-
-	DBG_MSG("intelfb_pci_register\n");
-
-	err = aperture_remove_conflicting_pci_devices(pdev, "intelfb");
-	if (err)
-		return err;
-
-	num_registered++;
-	if (num_registered != 1) {
-		ERR_MSG("Attempted to register %d devices "
-			"(should be only 1).\n", num_registered);
-		return -ENODEV;
-	}
-
-	info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev);
-	if (!info)
-		return -ENOMEM;
-
-	if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) {
-		ERR_MSG("Could not allocate cmap for intelfb_info.\n");
-		goto err_out_cmap;
-	}
-
-	dinfo = info->par;
-	dinfo->info  = info;
-	dinfo->fbops = &intel_fb_ops;
-	dinfo->pdev  = pdev;
-
-	/* Reserve pixmap space. */
-	info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL);
-	if (info->pixmap.addr == NULL) {
-		ERR_MSG("Cannot reserve pixmap memory.\n");
-		goto err_out_pixmap;
-	}
-
-	/* set early this option because it could be changed by tv encoder
-	   driver */
-	dinfo->fixed_mode = fixed;
-
-	/* Enable device. */
-	if ((err = pci_enable_device(pdev))) {
-		ERR_MSG("Cannot enable device.\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	/* Set base addresses. */
-	if ((ent->device == PCI_DEVICE_ID_INTEL_915G) ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_915GM) ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_945G)  ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_945GM) ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_945GME) ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_965G) ||
-	    (ent->device == PCI_DEVICE_ID_INTEL_965GM)) {
-
-		aperture_bar = 2;
-		mmio_bar = 0;
-	}
-	dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar);
-	dinfo->aperture.size     = pci_resource_len(pdev, aperture_bar);
-	dinfo->mmio_base_phys    = pci_resource_start(pdev, mmio_bar);
-	DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n",
-		(unsigned long long)pci_resource_start(pdev, aperture_bar),
-		(unsigned long long)pci_resource_len(pdev, aperture_bar),
-		(unsigned long long)pci_resource_start(pdev, mmio_bar),
-		(unsigned long long)pci_resource_len(pdev, mmio_bar));
-
-	/* Reserve the fb and MMIO regions */
-	if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size,
-				INTELFB_MODULE_NAME)) {
-		ERR_MSG("Cannot reserve FB region.\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	dinfo->flag |= INTELFB_FB_ACQUIRED;
-
-	if (!request_mem_region(dinfo->mmio_base_phys,
-				INTEL_REG_SIZE,
-				INTELFB_MODULE_NAME)) {
-		ERR_MSG("Cannot reserve MMIO region.\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	dinfo->flag |= INTELFB_MMIO_ACQUIRED;
-
-	/* Get the chipset info. */
-	dinfo->pci_chipset = pdev->device;
-
-	if (intelfbhw_get_chipset(pdev, dinfo)) {
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	if (intelfbhw_get_memory(pdev, &aperture_size, &stolen_size)) {
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, "
-		"stolen memory %dkB\n",
-		pdev->bus->number, PCI_SLOT(pdev->devfn),
-		PCI_FUNC(pdev->devfn), dinfo->name,
-		BtoMB(aperture_size), BtoKB(stolen_size));
-
-	/* Set these from the options. */
-	dinfo->accel    = accel;
-	dinfo->hwcursor = hwcursor;
-
-	if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) {
-		INF_MSG("Acceleration is not supported for the %s chipset.\n",
-			dinfo->name);
-		dinfo->accel = 0;
-	}
-
-	/* Framebuffer parameters - Use all the stolen memory if >= vram */
-	if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) {
-		dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size);
-		dinfo->fbmem_gart = 0;
-	} else {
-		dinfo->fb.size =  MB(vram);
-		dinfo->fbmem_gart = 1;
-	}
-
-	/* Allocate space for the ring buffer and HW cursor if enabled. */
-	if (dinfo->accel) {
-		dinfo->ring.size = RINGBUFFER_SIZE;
-		dinfo->ring_tail_mask = dinfo->ring.size - 1;
-	}
-	if (dinfo->hwcursor)
-		dinfo->cursor.size = HW_CURSOR_SIZE;
-
-	/* Use agpgart to manage the GATT */
-	if (!(bridge = agp_backend_acquire(pdev))) {
-		ERR_MSG("cannot acquire agp\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	/* get the current gatt info */
-	if (agp_copy_info(bridge, &gtt_info)) {
-		ERR_MSG("cannot get agp info\n");
-		agp_backend_release(bridge);
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	if (MB(voffset) < stolen_size)
-		offset = (stolen_size >> 12);
-	else
-		offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE;
-
-	/* set the mem offsets - set them after the already used pages */
-	if (dinfo->accel)
-		dinfo->ring.offset = offset + gtt_info.current_memory;
-	if (dinfo->hwcursor)
-		dinfo->cursor.offset = offset +
-			+ gtt_info.current_memory + (dinfo->ring.size >> 12);
-	if (dinfo->fbmem_gart)
-		dinfo->fb.offset = offset +
-			+ gtt_info.current_memory + (dinfo->ring.size >> 12)
-			+ (dinfo->cursor.size >> 12);
-
-	/* Allocate memories (which aren't stolen) */
-	/* Map the fb and MMIO regions */
-	/* ioremap only up to the end of used aperture */
-	dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc
-		(dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12)
-		 + dinfo->fb.size);
-	if (!dinfo->aperture.virtual) {
-		ERR_MSG("Cannot remap FB region.\n");
-		agp_backend_release(bridge);
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	dinfo->mmio_base =
-		(u8 __iomem *)ioremap(dinfo->mmio_base_phys,
-					      INTEL_REG_SIZE);
-	if (!dinfo->mmio_base) {
-		ERR_MSG("Cannot remap MMIO region.\n");
-		agp_backend_release(bridge);
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	if (dinfo->accel) {
-		if (!(dinfo->gtt_ring_mem =
-		      agp_allocate_memory(bridge, dinfo->ring.size >> 12,
-					  AGP_NORMAL_MEMORY))) {
-			ERR_MSG("cannot allocate ring buffer memory\n");
-			agp_backend_release(bridge);
-			cleanup(dinfo);
-			return -ENOMEM;
-		}
-		if (agp_bind_memory(dinfo->gtt_ring_mem,
-				    dinfo->ring.offset)) {
-			ERR_MSG("cannot bind ring buffer memory\n");
-			agp_backend_release(bridge);
-			cleanup(dinfo);
-			return -EBUSY;
-		}
-		dinfo->ring.physical = dinfo->aperture.physical
-			+ (dinfo->ring.offset << 12);
-		dinfo->ring.virtual  = dinfo->aperture.virtual
-			+ (dinfo->ring.offset << 12);
-		dinfo->ring_head = 0;
-	}
-	if (dinfo->hwcursor) {
-		agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY
-			: AGP_NORMAL_MEMORY;
-		if (!(dinfo->gtt_cursor_mem =
-		      agp_allocate_memory(bridge, dinfo->cursor.size >> 12,
-					  agp_memtype))) {
-			ERR_MSG("cannot allocate cursor memory\n");
-			agp_backend_release(bridge);
-			cleanup(dinfo);
-			return -ENOMEM;
-		}
-		if (agp_bind_memory(dinfo->gtt_cursor_mem,
-				    dinfo->cursor.offset)) {
-			ERR_MSG("cannot bind cursor memory\n");
-			agp_backend_release(bridge);
-			cleanup(dinfo);
-			return -EBUSY;
-		}
-		if (dinfo->mobile)
-			dinfo->cursor.physical
-				= dinfo->gtt_cursor_mem->physical;
-		else
-			dinfo->cursor.physical = dinfo->aperture.physical
-				+ (dinfo->cursor.offset << 12);
-		dinfo->cursor.virtual = dinfo->aperture.virtual
-			+ (dinfo->cursor.offset << 12);
-	}
-	if (dinfo->fbmem_gart) {
-		if (!(dinfo->gtt_fb_mem =
-		      agp_allocate_memory(bridge, dinfo->fb.size >> 12,
-					  AGP_NORMAL_MEMORY))) {
-			WRN_MSG("cannot allocate framebuffer memory - use "
-				"the stolen one\n");
-			dinfo->fbmem_gart = 0;
-		}
-		if (agp_bind_memory(dinfo->gtt_fb_mem,
-				    dinfo->fb.offset)) {
-			WRN_MSG("cannot bind framebuffer memory - use "
-				"the stolen one\n");
-			dinfo->fbmem_gart = 0;
-		}
-	}
-
-	/* update framebuffer memory parameters */
-	if (!dinfo->fbmem_gart)
-		dinfo->fb.offset = 0;   /* starts at offset 0 */
-	dinfo->fb.physical = dinfo->aperture.physical
-		+ (dinfo->fb.offset << 12);
-	dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12);
-	dinfo->fb_start = dinfo->fb.offset << 12;
-
-	/* release agpgart */
-	agp_backend_release(bridge);
-
-	if (mtrr)
-		dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical,
-						    dinfo->aperture.size);
-
-	DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n",
-		dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size,
-		dinfo->fb.virtual);
-	DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n",
-		dinfo->mmio_base_phys, INTEL_REG_SIZE,
-		dinfo->mmio_base);
-	DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n",
-		dinfo->ring.physical, dinfo->ring.size,
-		dinfo->ring.virtual);
-	DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n",
-		dinfo->cursor.physical, dinfo->cursor.size,
-		dinfo->cursor.virtual, dinfo->cursor.offset,
-		dinfo->cursor.physical);
-
-	DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, "
-		"noinit = %d\n", vram, accel, hwcursor, fixed, noinit);
-	DBG_MSG("options: mode = \"%s\"\n", mode ? mode : "");
-
-	if (probeonly)
-		bailout(dinfo);
-
-	/*
-	 * Check if the LVDS port or any DVO ports are enabled.  If so,
-	 * don't allow mode switching
-	 */
-	dvo = intelfbhw_check_non_crt(dinfo);
-	if (dvo) {
-		dinfo->fixed_mode = 1;
-		WRN_MSG("Non-CRT device is enabled ( ");
-		i = 0;
-		while (dvo) {
-			if (dvo & 1) {
-				s = intelfbhw_dvo_to_string(1 << i);
-				if (s)
-					printk("%s ", s);
-			}
-			dvo >>= 1;
-			++i;
-		}
-		printk(").  Disabling mode switching.\n");
-	}
-
-	if (bailearly == 1)
-		bailout(dinfo);
-
-	if (FIXED_MODE(dinfo) &&
-	    screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) {
-		ERR_MSG("Video mode must be programmed at boot time.\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	if (bailearly == 2)
-		bailout(dinfo);
-
-	/* Initialise dinfo and related data. */
-	/* If an initial mode was programmed at boot time, get its details. */
-	if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB)
-		get_initial_mode(dinfo);
-
-	if (bailearly == 3)
-		bailout(dinfo);
-
-	if (FIXED_MODE(dinfo))	/* remap fb address */
-		update_dinfo(dinfo, &dinfo->initial_var);
-
-	if (bailearly == 4)
-		bailout(dinfo);
-
-
-	if (intelfb_set_fbinfo(dinfo)) {
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	if (bailearly == 5)
-		bailout(dinfo);
-
-#ifdef CONFIG_FB_INTEL_I2C
-	/* register I2C bus */
-	intelfb_create_i2c_busses(dinfo);
-#endif
-
-	if (bailearly == 6)
-		bailout(dinfo);
-
-	pci_set_drvdata(pdev, dinfo);
-
-	/* Save the initial register state. */
-	i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state,
-				    bailearly > 6 ? bailearly - 6 : 0);
-	if (i != 0) {
-		DBG_MSG("intelfbhw_read_hw_state returned %d\n", i);
-		bailout(dinfo);
-	}
-
-	intelfbhw_print_hw_state(dinfo, &dinfo->save_state);
-
-	if (bailearly == 18)
-		bailout(dinfo);
-
-	/* read active pipe */
-	dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state);
-
-	/* Cursor initialisation */
-	if (dinfo->hwcursor) {
-		intelfbhw_cursor_init(dinfo);
-		intelfbhw_cursor_reset(dinfo);
-	}
-
-	if (bailearly == 19)
-		bailout(dinfo);
-
-	/* 2d acceleration init */
-	if (dinfo->accel)
-		intelfbhw_2d_start(dinfo);
-
-	if (bailearly == 20)
-		bailout(dinfo);
-
-	if (noregister)
-		bailout(dinfo);
-
-	if (register_framebuffer(dinfo->info) < 0) {
-		ERR_MSG("Cannot register framebuffer.\n");
-		cleanup(dinfo);
-		return -ENODEV;
-	}
-
-	dinfo->registered = 1;
-	dinfo->open = 0;
-
-	init_waitqueue_head(&dinfo->vsync.wait);
-	spin_lock_init(&dinfo->int_lock);
-	dinfo->irq_flags = 0;
-	dinfo->vsync.pan_display = 0;
-	dinfo->vsync.pan_offset = 0;
-
-	return 0;
-
-err_out_pixmap:
-	fb_dealloc_cmap(&info->cmap);
-err_out_cmap:
-	framebuffer_release(info);
-	return -ENODEV;
-}
-
-static void intelfb_pci_unregister(struct pci_dev *pdev)
-{
-	struct intelfb_info *dinfo = pci_get_drvdata(pdev);
-
-	DBG_MSG("intelfb_pci_unregister\n");
-
-	if (!dinfo)
-		return;
-
-	cleanup(dinfo);
-}
-
-/***************************************************************
- *                       helper functions                      *
- ***************************************************************/
-
-__inline__ int intelfb_var_to_depth(const struct fb_var_screeninfo *var)
-{
-	DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n",
-		var->bits_per_pixel, var->green.length);
-
-	switch (var->bits_per_pixel) {
-	case 16:
-		return (var->green.length == 6) ? 16 : 15;
-	case 32:
-		return 24;
-	default:
-		return var->bits_per_pixel;
-	}
-}
-
-
-static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var)
-{
-	int xtot = var->xres + var->left_margin + var->right_margin +
-		   var->hsync_len;
-	int ytot = var->yres + var->upper_margin + var->lower_margin +
-		   var->vsync_len;
-
-	return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot;
-}
-
-/***************************************************************
- *                Various initialisation functions             *
- ***************************************************************/
-
-static void get_initial_mode(struct intelfb_info *dinfo)
-{
-	struct fb_var_screeninfo *var;
-	int xtot, ytot;
-
-	DBG_MSG("get_initial_mode\n");
-
-	dinfo->initial_vga = 1;
-	dinfo->initial_fb_base = screen_info.lfb_base;
-	dinfo->initial_video_ram = screen_info.lfb_size * KB(64);
-	dinfo->initial_pitch = screen_info.lfb_linelength;
-
-	var = &dinfo->initial_var;
-	memset(var, 0, sizeof(*var));
-	var->xres = screen_info.lfb_width;
-	var->yres = screen_info.lfb_height;
-	var->bits_per_pixel = screen_info.lfb_depth;
-	switch (screen_info.lfb_depth) {
-	case 15:
-		var->bits_per_pixel = 16;
-		break;
-	case 24:
-		var->bits_per_pixel = 32;
-		break;
-	}
-
-	DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n",
-		dinfo->initial_fb_base, dinfo->initial_video_ram,
-		BtoKB(dinfo->initial_video_ram));
-
-	DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n",
-		var->xres, var->yres, var->bits_per_pixel,
-		dinfo->initial_pitch);
-
-	/* Dummy timing values (assume 60Hz) */
-	var->left_margin = (var->xres / 8) & 0xf8;
-	var->right_margin = 32;
-	var->upper_margin = 16;
-	var->lower_margin = 4;
-	var->hsync_len = (var->xres / 8) & 0xf8;
-	var->vsync_len = 4;
-
-	xtot = var->xres + var->left_margin +
-		var->right_margin + var->hsync_len;
-	ytot = var->yres + var->upper_margin +
-		var->lower_margin + var->vsync_len;
-	var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60;
-
-	var->height = -1;
-	var->width = -1;
-
-	if (var->bits_per_pixel > 8) {
-		var->red.offset = screen_info.red_pos;
-		var->red.length = screen_info.red_size;
-		var->green.offset = screen_info.green_pos;
-		var->green.length = screen_info.green_size;
-		var->blue.offset = screen_info.blue_pos;
-		var->blue.length = screen_info.blue_size;
-		var->transp.offset = screen_info.rsvd_pos;
-		var->transp.length = screen_info.rsvd_size;
-	} else {
-		var->red.length = 8;
-		var->green.length = 8;
-		var->blue.length = 8;
-	}
-}
-
-static int intelfb_init_var(struct intelfb_info *dinfo)
-{
-	struct fb_var_screeninfo *var;
-	int msrc = 0;
-
-	DBG_MSG("intelfb_init_var\n");
-
-	var = &dinfo->info->var;
-	if (FIXED_MODE(dinfo)) {
-	        memcpy(var, &dinfo->initial_var,
-		       sizeof(struct fb_var_screeninfo));
-		msrc = 5;
-	} else {
-		const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev);
-		u8 *edid_d = NULL;
-
-		if (edid_s) {
-			edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL);
-
-			if (edid_d) {
-				fb_edid_to_monspecs(edid_d,
-						    &dinfo->info->monspecs);
-				kfree(edid_d);
-			}
-		}
-
-		if (mode) {
-			printk("intelfb: Looking for mode in private "
-			       "database\n");
-			msrc = fb_find_mode(var, dinfo->info, mode,
-					    dinfo->info->monspecs.modedb,
-					    dinfo->info->monspecs.modedb_len,
-					    NULL, 0);
-
-			if (msrc && msrc > 1) {
-				printk("intelfb: No mode in private database, "
-				       "intelfb: looking for mode in global "
-				       "database ");
-				msrc = fb_find_mode(var, dinfo->info, mode,
-						    NULL, 0, NULL, 0);
-
-				if (msrc)
-					msrc |= 8;
-			}
-
-		}
-
-		if (!msrc)
-			msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE,
-					    NULL, 0, NULL, 0);
-	}
-
-	if (!msrc) {
-		ERR_MSG("Cannot find a suitable video mode.\n");
-		return 1;
-	}
-
-	INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres,
-		var->bits_per_pixel, var_to_refresh(var));
-
-	DBG_MSG("Initial video mode is from %d.\n", msrc);
-
-#if ALLOCATE_FOR_PANNING
-	/* Allow use of half of the video ram for panning */
-	var->xres_virtual = var->xres;
-	var->yres_virtual =
-		dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres);
-	if (var->yres_virtual < var->yres)
-		var->yres_virtual = var->yres;
-#else
-	var->yres_virtual = var->yres;
-#endif
-
-	if (dinfo->accel)
-		var->accel_flags |= FB_ACCELF_TEXT;
-	else
-		var->accel_flags &= ~FB_ACCELF_TEXT;
-
-	return 0;
-}
-
-static int intelfb_set_fbinfo(struct intelfb_info *dinfo)
-{
-	struct fb_info *info = dinfo->info;
-
-	DBG_MSG("intelfb_set_fbinfo\n");
-
-	info->fbops = &intel_fb_ops;
-	info->pseudo_palette = dinfo->pseudo_palette;
-
-	info->pixmap.size = 64*1024;
-	info->pixmap.buf_align = 8;
-	info->pixmap.access_align = 32;
-	info->pixmap.flags = FB_PIXMAP_SYSTEM;
-
-	if (intelfb_init_var(dinfo))
-		return 1;
-
-	info->pixmap.scan_align = 1;
-	strcpy(info->fix.id, dinfo->name);
-	info->fix.smem_start = dinfo->fb.physical;
-	info->fix.smem_len = dinfo->fb.size;
-	info->fix.type = FB_TYPE_PACKED_PIXELS;
-	info->fix.type_aux = 0;
-	info->fix.xpanstep = 8;
-	info->fix.ypanstep = 1;
-	info->fix.ywrapstep = 0;
-	info->fix.mmio_start = dinfo->mmio_base_phys;
-	info->fix.mmio_len = INTEL_REG_SIZE;
-	info->fix.accel = FB_ACCEL_I830;
-	update_dinfo(dinfo, &info->var);
-
-	return 0;
-}
-
-/* Update dinfo to match the active video mode. */
-static void update_dinfo(struct intelfb_info *dinfo,
-			 struct fb_var_screeninfo *var)
-{
-	DBG_MSG("update_dinfo\n");
-
-	dinfo->bpp = var->bits_per_pixel;
-	dinfo->depth = intelfb_var_to_depth(var);
-	dinfo->xres = var->xres;
-	dinfo->yres = var->xres;
-	dinfo->pixclock = var->pixclock;
-
-	dinfo->info->fix.visual = dinfo->visual;
-	dinfo->info->fix.line_length = dinfo->pitch;
-
-	switch (dinfo->bpp) {
-	case 8:
-		dinfo->visual = FB_VISUAL_PSEUDOCOLOR;
-		dinfo->pitch = var->xres_virtual;
-		break;
-	case 16:
-		dinfo->visual = FB_VISUAL_TRUECOLOR;
-		dinfo->pitch = var->xres_virtual * 2;
-		break;
-	case 32:
-		dinfo->visual = FB_VISUAL_TRUECOLOR;
-		dinfo->pitch = var->xres_virtual * 4;
-		break;
-	}
-
-	/* Make sure the line length is a aligned correctly. */
-	if (IS_I9XX(dinfo))
-		dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX);
-	else
-		dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT);
-
-	if (FIXED_MODE(dinfo))
-		dinfo->pitch = dinfo->initial_pitch;
-
-	dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual;
-	dinfo->info->fix.line_length = dinfo->pitch;
-	dinfo->info->fix.visual = dinfo->visual;
-}
-
-/* fbops functions */
-
-/***************************************************************
- *                       fbdev interface                       *
- ***************************************************************/
-
-static int intelfb_open(struct fb_info *info, int user)
-{
-	struct intelfb_info *dinfo = GET_DINFO(info);
-
-	if (user)
-		dinfo->open++;
-
-	return 0;
-}
-
-static int intelfb_release(struct fb_info *info, int user)
-{
-	struct intelfb_info *dinfo = GET_DINFO(info);
-
-	if (user) {
-		dinfo->open--;
-		msleep(1);
-		if (!dinfo->open)
-			intelfbhw_disable_irq(dinfo);
-	}
-
-	return 0;
-}
-
-static int intelfb_check_var(struct fb_var_screeninfo *var,
-			     struct fb_info *info)
-{
-	int change_var = 0;
-	struct fb_var_screeninfo v;
-	struct intelfb_info *dinfo;
-	static int first = 1;
-	int i;
-	/* Good pitches to allow tiling.  Don't care about pitches < 1024. */
-	static const int pitches[] = {
-		128 * 8,
-		128 * 16,
-		128 * 32,
-		128 * 64,
-		0
-	};
-
-	DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags);
-
-	dinfo = GET_DINFO(info);
-
-	if (!var->pixclock)
-		return -EINVAL;
-
-	/* update the pitch */
-	if (intelfbhw_validate_mode(dinfo, var) != 0)
-		return -EINVAL;
-
-	v = *var;
-
-	for (i = 0; pitches[i] != 0; i++) {
-		if (pitches[i] >= v.xres_virtual) {
-			v.xres_virtual = pitches[i];
-			break;
-		}
-	}
-
-	/* Check for a supported bpp. */
-	if (v.bits_per_pixel <= 8)
-		v.bits_per_pixel = 8;
-	else if (v.bits_per_pixel <= 16) {
-		if (v.bits_per_pixel == 16)
-			v.green.length = 6;
-		v.bits_per_pixel = 16;
-	} else if (v.bits_per_pixel <= 32)
-		v.bits_per_pixel = 32;
-	else
-		return -EINVAL;
-
-	change_var = ((info->var.xres != var->xres) ||
-		      (info->var.yres != var->yres) ||
-		      (info->var.xres_virtual != var->xres_virtual) ||
-		      (info->var.yres_virtual != var->yres_virtual) ||
-		      (info->var.bits_per_pixel != var->bits_per_pixel) ||
-		      memcmp(&info->var.red, &var->red, sizeof(var->red)) ||
-		      memcmp(&info->var.green, &var->green,
-			     sizeof(var->green)) ||
-		      memcmp(&info->var.blue, &var->blue, sizeof(var->blue)));
-
-	if (FIXED_MODE(dinfo) &&
-	    (change_var ||
-	     var->yres_virtual > dinfo->initial_var.yres_virtual ||
-	     var->yres_virtual < dinfo->initial_var.yres ||
-	     var->xoffset || var->nonstd)) {
-		if (first) {
-			ERR_MSG("Changing the video mode is not supported.\n");
-			first = 0;
-		}
-		return -EINVAL;
-	}
-
-	switch (intelfb_var_to_depth(&v)) {
-	case 8:
-		v.red.offset = v.green.offset = v.blue.offset = 0;
-		v.red.length = v.green.length = v.blue.length = 8;
-		v.transp.offset = v.transp.length = 0;
-		break;
-	case 15:
-		v.red.offset = 10;
-		v.green.offset = 5;
-		v.blue.offset = 0;
-		v.red.length = v.green.length = v.blue.length = 5;
-		v.transp.offset = v.transp.length = 0;
-		break;
-	case 16:
-		v.red.offset = 11;
-		v.green.offset = 5;
-		v.blue.offset = 0;
-		v.red.length = 5;
-		v.green.length = 6;
-		v.blue.length = 5;
-		v.transp.offset = v.transp.length = 0;
-		break;
-	case 24:
-		v.red.offset = 16;
-		v.green.offset = 8;
-		v.blue.offset = 0;
-		v.red.length = v.green.length = v.blue.length = 8;
-		v.transp.offset = v.transp.length = 0;
-		break;
-	case 32:
-		v.red.offset = 16;
-		v.green.offset = 8;
-		v.blue.offset = 0;
-		v.red.length = v.green.length = v.blue.length = 8;
-		v.transp.offset = 24;
-		v.transp.length = 8;
-		break;
-	}
-
-	if (v.xoffset > v.xres_virtual - v.xres)
-		v.xoffset = v.xres_virtual - v.xres;
-	if (v.yoffset > v.yres_virtual - v.yres)
-		v.yoffset = v.yres_virtual - v.yres;
-
-	v.red.msb_right = v.green.msb_right = v.blue.msb_right =
-			  v.transp.msb_right = 0;
-
-        *var = v;
-
-	return 0;
-}
-
-static int intelfb_set_par(struct fb_info *info)
-{
-	struct intelfb_hwstate *hw;
-        struct intelfb_info *dinfo = GET_DINFO(info);
-
-	if (FIXED_MODE(dinfo)) {
-		ERR_MSG("Changing the video mode is not supported.\n");
-		return -EINVAL;
-	}
-
-	hw = kmalloc(sizeof(*hw), GFP_ATOMIC);
-	if (!hw)
-		return -ENOMEM;
-
-	DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres,
-		info->var.yres, info->var.bits_per_pixel);
-
-	/*
-	 * Disable VCO prior to timing register change.
-	 */
-	OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE);
-
-	intelfb_blank(FB_BLANK_POWERDOWN, info);
-
-	if (ACCEL(dinfo, info))
-		intelfbhw_2d_stop(dinfo);
-
-	memcpy(hw, &dinfo->save_state, sizeof(*hw));
-	if (intelfbhw_mode_to_hw(dinfo, hw, &info->var))
-		goto invalid_mode;
-	if (intelfbhw_program_mode(dinfo, hw, 0))
-		goto invalid_mode;
-
-#if REGDUMP > 0
-	intelfbhw_read_hw_state(dinfo, hw, 0);
-	intelfbhw_print_hw_state(dinfo, hw);
-#endif
-
-	update_dinfo(dinfo, &info->var);
-
-	if (ACCEL(dinfo, info))
-		intelfbhw_2d_start(dinfo);
-
-	intelfb_pan_display(&info->var, info);
-
-	intelfb_blank(FB_BLANK_UNBLANK, info);
-
-	if (ACCEL(dinfo, info)) {
-		info->flags = FBINFO_HWACCEL_YPAN |
-		FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT |
-		FBINFO_HWACCEL_IMAGEBLIT;
-	} else
-		info->flags = FBINFO_HWACCEL_YPAN;
-
-	kfree(hw);
-	return 0;
-invalid_mode:
-	kfree(hw);
-	return -EINVAL;
-}
-
-static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
-			     unsigned blue, unsigned transp,
-			     struct fb_info *info)
-{
-	struct intelfb_info *dinfo = GET_DINFO(info);
-
-#if VERBOSE > 0
-	DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth);
-#endif
-
-	if (regno > 255)
-		return 1;
-
-	if (dinfo->depth == 8) {
-		red >>= 8;
-		green >>= 8;
-		blue >>= 8;
-
-		intelfbhw_setcolreg(dinfo, regno, red, green, blue,
-				    transp);
-	}
-
-	if (regno < 16) {
-		switch (dinfo->depth) {
-		case 15:
-			dinfo->pseudo_palette[regno] = ((red & 0xf800) >>  1) |
-				((green & 0xf800) >>  6) |
-				((blue & 0xf800) >> 11);
-			break;
-		case 16:
-			dinfo->pseudo_palette[regno] = (red & 0xf800) |
-				((green & 0xfc00) >>  5) |
-				((blue  & 0xf800) >> 11);
-			break;
-		case 24:
-			dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) |
-				(green & 0xff00) |
-				((blue  & 0xff00) >> 8);
-			break;
-		}
-	}
-
-	return 0;
-}
-
-static int intelfb_blank(int blank, struct fb_info *info)
-{
-	intelfbhw_do_blank(blank, info);
-	return 0;
-}
-
-static int intelfb_pan_display(struct fb_var_screeninfo *var,
-			       struct fb_info *info)
-{
-	intelfbhw_pan_display(var, info);
-	return 0;
-}
-
-/* When/if we have our own ioctls. */
-static int intelfb_ioctl(struct fb_info *info, unsigned int cmd,
-			 unsigned long arg)
-{
-	int retval = 0;
-	struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 pipe = 0;
-
-	switch (cmd) {
-		case FBIO_WAITFORVSYNC:
-			if (get_user(pipe, (__u32 __user *)arg))
-				return -EFAULT;
-
-			retval = intelfbhw_wait_for_vsync(dinfo, pipe);
-			break;
-		default:
-			break;
-	}
-
-	return retval;
-}
-
-static void intelfb_fillrect (struct fb_info *info,
-			      const struct fb_fillrect *rect)
-{
-        struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 rop, color;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfb_fillrect\n");
-#endif
-
-	if (!ACCEL(dinfo, info) || dinfo->depth == 4) {
-		cfb_fillrect(info, rect);
-		return;
-	}
-
-	if (rect->rop == ROP_COPY)
-		rop = PAT_ROP_GXCOPY;
-	else /* ROP_XOR */
-		rop = PAT_ROP_GXXOR;
-
-	if (dinfo->depth != 8)
-		color = dinfo->pseudo_palette[rect->color];
-	else
-		color = rect->color;
-
-	intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy,
-			      rect->width, rect->height, color,
-			      dinfo->pitch, info->var.bits_per_pixel,
-			      rop);
-}
-
-static void intelfb_copyarea(struct fb_info *info,
-			     const struct fb_copyarea *region)
-{
-        struct intelfb_info *dinfo = GET_DINFO(info);
-
-#if VERBOSE > 0
-	DBG_MSG("intelfb_copyarea\n");
-#endif
-
-	if (!ACCEL(dinfo, info) || dinfo->depth == 4) {
-		cfb_copyarea(info, region);
-		return;
-	}
-
-	intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx,
-			    region->dy, region->width, region->height,
-			    dinfo->pitch, info->var.bits_per_pixel);
-}
-
-static void intelfb_imageblit(struct fb_info *info,
-			      const struct fb_image *image)
-{
-        struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 fgcolor, bgcolor;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfb_imageblit\n");
-#endif
-
-	if (!ACCEL(dinfo, info) || dinfo->depth == 4
-	    || image->depth != 1) {
-		cfb_imageblit(info, image);
-		return;
-	}
-
-	if (dinfo->depth != 8) {
-		fgcolor = dinfo->pseudo_palette[image->fg_color];
-		bgcolor = dinfo->pseudo_palette[image->bg_color];
-	} else {
-		fgcolor = image->fg_color;
-		bgcolor = image->bg_color;
-	}
-
-	if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width,
-				    image->height, image->data,
-				    image->dx, image->dy,
-				    dinfo->pitch, info->var.bits_per_pixel)) {
-		cfb_imageblit(info, image);
-		return;
-	}
-}
-
-static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
-        struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 physical;
-#if VERBOSE > 0
-	DBG_MSG("intelfb_cursor\n");
-#endif
-
-	if (!dinfo->hwcursor)
-		return -ENODEV;
-
-	intelfbhw_cursor_hide(dinfo);
-
-	/* If XFree killed the cursor - restore it */
-	physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical :
-		   (dinfo->cursor.offset << 12);
-
-	if (INREG(CURSOR_A_BASEADDR) != physical) {
-		u32 fg, bg;
-
-		DBG_MSG("the cursor was killed - restore it !!\n");
-		DBG_MSG("size %d, %d   pos %d, %d\n",
-			cursor->image.width, cursor->image.height,
-			cursor->image.dx, cursor->image.dy);
-
-		intelfbhw_cursor_init(dinfo);
-		intelfbhw_cursor_reset(dinfo);
-		intelfbhw_cursor_setpos(dinfo, cursor->image.dx,
-					cursor->image.dy);
-
-		if (dinfo->depth != 8) {
-			fg =dinfo->pseudo_palette[cursor->image.fg_color];
-			bg =dinfo->pseudo_palette[cursor->image.bg_color];
-		} else {
-			fg = cursor->image.fg_color;
-			bg = cursor->image.bg_color;
-		}
-		intelfbhw_cursor_setcolor(dinfo, bg, fg);
-		intelfbhw_cursor_load(dinfo, cursor->image.width,
-				      cursor->image.height,
-				      dinfo->cursor_src);
-
-		if (cursor->enable)
-			intelfbhw_cursor_show(dinfo);
-		return 0;
-	}
-
-	if (cursor->set & FB_CUR_SETPOS) {
-		u32 dx, dy;
-
-		dx = cursor->image.dx - info->var.xoffset;
-		dy = cursor->image.dy - info->var.yoffset;
-
-		intelfbhw_cursor_setpos(dinfo, dx, dy);
-	}
-
-	if (cursor->set & FB_CUR_SETSIZE) {
-		if (cursor->image.width > 64 || cursor->image.height > 64)
-			return -ENXIO;
-
-		intelfbhw_cursor_reset(dinfo);
-	}
-
-	if (cursor->set & FB_CUR_SETCMAP) {
-		u32 fg, bg;
-
-		if (dinfo->depth != 8) {
-			fg = dinfo->pseudo_palette[cursor->image.fg_color];
-			bg = dinfo->pseudo_palette[cursor->image.bg_color];
-		} else {
-			fg = cursor->image.fg_color;
-			bg = cursor->image.bg_color;
-		}
-
-		intelfbhw_cursor_setcolor(dinfo, bg, fg);
-	}
-
-	if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) {
-		u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8);
-		u32 size = s_pitch * cursor->image.height;
-		u8 *dat = (u8 *) cursor->image.data;
-		u8 *msk = (u8 *) cursor->mask;
-		u8 src[64];
-		u32 i;
-
-		if (cursor->image.depth != 1)
-			return -ENXIO;
-
-		switch (cursor->rop) {
-		case ROP_XOR:
-			for (i = 0; i < size; i++)
-				src[i] = dat[i] ^ msk[i];
-			break;
-		case ROP_COPY:
-		default:
-			for (i = 0; i < size; i++)
-				src[i] = dat[i] & msk[i];
-			break;
-		}
-
-		/* save the bitmap to restore it when XFree will
-		   make the cursor dirty */
-		memcpy(dinfo->cursor_src, src, size);
-
-		intelfbhw_cursor_load(dinfo, cursor->image.width,
-				      cursor->image.height, src);
-	}
-
-	if (cursor->enable)
-		intelfbhw_cursor_show(dinfo);
-
-	return 0;
-}
-
-static int intelfb_sync(struct fb_info *info)
-{
-        struct intelfb_info *dinfo = GET_DINFO(info);
-
-#if VERBOSE > 0
-	DBG_MSG("intelfb_sync\n");
-#endif
-
-	if (dinfo->ring_lockup)
-		return 0;
-
-	intelfbhw_do_sync(dinfo);
-	return 0;
-}
-

drivers/video/fbdev/intelfb/intelfbhw.c

···
-/*
- * intelfb
- *
- * Linux framebuffer driver for Intel(R) 865G integrated graphics chips.
- *
- * Copyright © 2002, 2003 David Dawes <[e-mail]>
- *                   2004 Sylvain Meyer
- *
- * This driver consists of two parts.  The first part (intelfbdrv.c) provides
- * the basic fbdev interfaces, is derived in part from the radeonfb and
- * vesafb drivers, and is covered by the GPL.  The second part (intelfbhw.c)
- * provides the code to program the hardware.  Most of it is derived from
- * the i810/i830 XFree86 driver.  The HW-specific code is covered here
- * under a dual license (GPL and MIT/XFree86 license).
- *
- * Author: David Dawes
- *
- */
-
-/* $DHD: intelfb/intelfbhw.c,v 1.9 2003/06/27 15:06:25 dawes Exp $ */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-
-#include "intelfb.h"
-#include "intelfbhw.h"
-
-struct pll_min_max {
-	int min_m, max_m, min_m1, max_m1;
-	int min_m2, max_m2, min_n, max_n;
-	int min_p, max_p, min_p1, max_p1;
-	int min_vco, max_vco, p_transition_clk, ref_clk;
-	int p_inc_lo, p_inc_hi;
-};
-
-#define PLLS_I8xx 0
-#define PLLS_I9xx 1
-#define PLLS_MAX 2
-
-static struct pll_min_max plls[PLLS_MAX] = {
-	{ 108, 140, 18, 26,
-	  6, 16, 3, 16,
-	  4, 128, 0, 31,
-	  930000, 1400000, 165000, 48000,
-	  4, 2 },		/* I8xx */
-
-	{ 75, 120, 10, 20,
-	  5, 9, 4, 7,
-	  5, 80, 1, 8,
-	  1400000, 2800000, 200000, 96000,
-	  10, 5 }		/* I9xx */
-};
-
-int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo)
-{
-	u32 tmp;
-	if (!pdev || !dinfo)
-		return 1;
-
-	switch (pdev->device) {
-	case PCI_DEVICE_ID_INTEL_830M:
-		dinfo->name = "Intel(R) 830M";
-		dinfo->chipset = INTEL_830M;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I8xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_845G:
-		dinfo->name = "Intel(R) 845G";
-		dinfo->chipset = INTEL_845G;
-		dinfo->mobile = 0;
-		dinfo->pll_index = PLLS_I8xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_854:
-		dinfo->mobile = 1;
-		dinfo->name = "Intel(R) 854";
-		dinfo->chipset = INTEL_854;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_85XGM:
-		tmp = 0;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I8xx;
-		pci_read_config_dword(pdev, INTEL_85X_CAPID, &tmp);
-		switch ((tmp >> INTEL_85X_VARIANT_SHIFT) &
-			INTEL_85X_VARIANT_MASK) {
-		case INTEL_VAR_855GME:
-			dinfo->name = "Intel(R) 855GME";
-			dinfo->chipset = INTEL_855GME;
-			return 0;
-		case INTEL_VAR_855GM:
-			dinfo->name = "Intel(R) 855GM";
-			dinfo->chipset = INTEL_855GM;
-			return 0;
-		case INTEL_VAR_852GME:
-			dinfo->name = "Intel(R) 852GME";
-			dinfo->chipset = INTEL_852GME;
-			return 0;
-		case INTEL_VAR_852GM:
-			dinfo->name = "Intel(R) 852GM";
-			dinfo->chipset = INTEL_852GM;
-			return 0;
-		default:
-			dinfo->name = "Intel(R) 852GM/855GM";
-			dinfo->chipset = INTEL_85XGM;
-			return 0;
-		}
-		break;
-	case PCI_DEVICE_ID_INTEL_865G:
-		dinfo->name = "Intel(R) 865G";
-		dinfo->chipset = INTEL_865G;
-		dinfo->mobile = 0;
-		dinfo->pll_index = PLLS_I8xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_915G:
-		dinfo->name = "Intel(R) 915G";
-		dinfo->chipset = INTEL_915G;
-		dinfo->mobile = 0;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_915GM:
-		dinfo->name = "Intel(R) 915GM";
-		dinfo->chipset = INTEL_915GM;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_945G:
-		dinfo->name = "Intel(R) 945G";
-		dinfo->chipset = INTEL_945G;
-		dinfo->mobile = 0;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_945GM:
-		dinfo->name = "Intel(R) 945GM";
-		dinfo->chipset = INTEL_945GM;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_945GME:
-		dinfo->name = "Intel(R) 945GME";
-		dinfo->chipset = INTEL_945GME;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_965G:
-		dinfo->name = "Intel(R) 965G";
-		dinfo->chipset = INTEL_965G;
-		dinfo->mobile = 0;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	case PCI_DEVICE_ID_INTEL_965GM:
-		dinfo->name = "Intel(R) 965GM";
-		dinfo->chipset = INTEL_965GM;
-		dinfo->mobile = 1;
-		dinfo->pll_index = PLLS_I9xx;
-		return 0;
-	default:
-		return 1;
-	}
-}
-
-int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
-			 int *stolen_size)
-{
-	struct pci_dev *bridge_dev;
-	u16 tmp;
-	int stolen_overhead;
-
-	if (!pdev || !aperture_size || !stolen_size)
-		return 1;
-
-	/* Find the bridge device.  It is always 0:0.0 */
-	bridge_dev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 0,
-						 PCI_DEVFN(0, 0));
-	if (!bridge_dev) {
-		ERR_MSG("cannot find bridge device\n");
-		return 1;
-	}
-
-	/* Get the fb aperture size and "stolen" memory amount. */
-	tmp = 0;
-	pci_read_config_word(bridge_dev, INTEL_GMCH_CTRL, &tmp);
-	pci_dev_put(bridge_dev);
-
-	switch (pdev->device) {
-	case PCI_DEVICE_ID_INTEL_915G:
-	case PCI_DEVICE_ID_INTEL_915GM:
-	case PCI_DEVICE_ID_INTEL_945G:
-	case PCI_DEVICE_ID_INTEL_945GM:
-	case PCI_DEVICE_ID_INTEL_945GME:
-	case PCI_DEVICE_ID_INTEL_965G:
-	case PCI_DEVICE_ID_INTEL_965GM:
-		/*
-		 * 915, 945 and 965 chipsets support 64MB, 128MB or 256MB
-		 * aperture. Determine size from PCI resource length.
-		 */
-		*aperture_size = pci_resource_len(pdev, 2);
-		break;
-	default:
-		if ((tmp & INTEL_GMCH_MEM_MASK) == INTEL_GMCH_MEM_64M)
-			*aperture_size = MB(64);
-		else
-			*aperture_size = MB(128);
-		break;
-	}
-
-	/* Stolen memory size is reduced by the GTT and the popup.
-	   GTT is 1K per MB of aperture size, and popup is 4K. */
-	stolen_overhead = (*aperture_size / MB(1)) + 4;
-	switch(pdev->device) {
-	case PCI_DEVICE_ID_INTEL_830M:
-	case PCI_DEVICE_ID_INTEL_845G:
-		switch (tmp & INTEL_830_GMCH_GMS_MASK) {
-		case INTEL_830_GMCH_GMS_STOLEN_512:
-			*stolen_size = KB(512) - KB(stolen_overhead);
-			return 0;
-		case INTEL_830_GMCH_GMS_STOLEN_1024:
-			*stolen_size = MB(1) - KB(stolen_overhead);
-			return 0;
-		case INTEL_830_GMCH_GMS_STOLEN_8192:
-			*stolen_size = MB(8) - KB(stolen_overhead);
-			return 0;
-		case INTEL_830_GMCH_GMS_LOCAL:
-			ERR_MSG("only local memory found\n");
-			return 1;
-		case INTEL_830_GMCH_GMS_DISABLED:
-			ERR_MSG("video memory is disabled\n");
-			return 1;
-		default:
-			ERR_MSG("unexpected GMCH_GMS value: 0x%02x\n",
-				tmp & INTEL_830_GMCH_GMS_MASK);
-			return 1;
-		}
-		break;
-	default:
-		switch (tmp & INTEL_855_GMCH_GMS_MASK) {
-		case INTEL_855_GMCH_GMS_STOLEN_1M:
-			*stolen_size = MB(1) - KB(stolen_overhead);
-			return 0;
-		case INTEL_855_GMCH_GMS_STOLEN_4M:
-			*stolen_size = MB(4) - KB(stolen_overhead);
-			return 0;
-		case INTEL_855_GMCH_GMS_STOLEN_8M:
-			*stolen_size = MB(8) - KB(stolen_overhead);
-			return 0;
-		case INTEL_855_GMCH_GMS_STOLEN_16M:
-			*stolen_size = MB(16) - KB(stolen_overhead);
-			return 0;
-		case INTEL_855_GMCH_GMS_STOLEN_32M:
-			*stolen_size = MB(32) - KB(stolen_overhead);
-			return 0;
-		case INTEL_915G_GMCH_GMS_STOLEN_48M:
-			*stolen_size = MB(48) - KB(stolen_overhead);
-			return 0;
-		case INTEL_915G_GMCH_GMS_STOLEN_64M:
-			*stolen_size = MB(64) - KB(stolen_overhead);
-			return 0;
-		case INTEL_855_GMCH_GMS_DISABLED:
-			ERR_MSG("video memory is disabled\n");
-			return 0;
-		default:
-			ERR_MSG("unexpected GMCH_GMS value: 0x%02x\n",
-				tmp & INTEL_855_GMCH_GMS_MASK);
-			return 1;
-		}
-	}
-}
-
-int intelfbhw_check_non_crt(struct intelfb_info *dinfo)
-{
-	int dvo = 0;
-
-	if (INREG(LVDS) & PORT_ENABLE)
-		dvo |= LVDS_PORT;
-	if (INREG(DVOA) & PORT_ENABLE)
-		dvo |= DVOA_PORT;
-	if (INREG(DVOB) & PORT_ENABLE)
-		dvo |= DVOB_PORT;
-	if (INREG(DVOC) & PORT_ENABLE)
-		dvo |= DVOC_PORT;
-
-	return dvo;
-}
-
-const char * intelfbhw_dvo_to_string(int dvo)
-{
-	if (dvo & DVOA_PORT)
-		return "DVO port A";
-	else if (dvo & DVOB_PORT)
-		return "DVO port B";
-	else if (dvo & DVOC_PORT)
-		return "DVO port C";
-	else if (dvo & LVDS_PORT)
-		return "LVDS port";
-	else
-		return NULL;
-}
-
-
-int intelfbhw_validate_mode(struct intelfb_info *dinfo,
-			    struct fb_var_screeninfo *var)
-{
-	int bytes_per_pixel;
-	int tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_validate_mode\n");
-#endif
-
-	bytes_per_pixel = var->bits_per_pixel / 8;
-	if (bytes_per_pixel == 3)
-		bytes_per_pixel = 4;
-
-	/* Check if enough video memory. */
-	tmp = var->yres_virtual * var->xres_virtual * bytes_per_pixel;
-	if (tmp > dinfo->fb.size) {
-		WRN_MSG("Not enough video ram for mode "
-			"(%d KByte vs %d KByte).\n",
-			BtoKB(tmp), BtoKB(dinfo->fb.size));
-		return 1;
-	}
-
-	/* Check if x/y limits are OK. */
-	if (var->xres - 1 > HACTIVE_MASK) {
-		WRN_MSG("X resolution too large (%d vs %d).\n",
-			var->xres, HACTIVE_MASK + 1);
-		return 1;
-	}
-	if (var->yres - 1 > VACTIVE_MASK) {
-		WRN_MSG("Y resolution too large (%d vs %d).\n",
-			var->yres, VACTIVE_MASK + 1);
-		return 1;
-	}
-	if (var->xres < 4) {
-		WRN_MSG("X resolution too small (%d vs 4).\n", var->xres);
-		return 1;
-	}
-	if (var->yres < 4) {
-		WRN_MSG("Y resolution too small (%d vs 4).\n", var->yres);
-		return 1;
-	}
-
-	/* Check for doublescan modes. */
-	if (var->vmode & FB_VMODE_DOUBLE) {
-		WRN_MSG("Mode is double-scan.\n");
-		return 1;
-	}
-
-	if ((var->vmode & FB_VMODE_INTERLACED) && (var->yres & 1)) {
-		WRN_MSG("Odd number of lines in interlaced mode\n");
-		return 1;
-	}
-
-	/* Check if clock is OK. */
-	tmp = 1000000000 / var->pixclock;
-	if (tmp < MIN_CLOCK) {
-		WRN_MSG("Pixel clock is too low (%d MHz vs %d MHz).\n",
-			(tmp + 500) / 1000, MIN_CLOCK / 1000);
-		return 1;
-	}
-	if (tmp > MAX_CLOCK) {
-		WRN_MSG("Pixel clock is too high (%d MHz vs %d MHz).\n",
-			(tmp + 500) / 1000, MAX_CLOCK / 1000);
-		return 1;
-	}
-
-	return 0;
-}
-
-int intelfbhw_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
-{
-	struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 offset, xoffset, yoffset;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_pan_display\n");
-#endif
-
-	xoffset = ROUND_DOWN_TO(var->xoffset, 8);
-	yoffset = var->yoffset;
-
-	if ((xoffset + info->var.xres > info->var.xres_virtual) ||
-	    (yoffset + info->var.yres > info->var.yres_virtual))
-		return -EINVAL;
-
-	offset = (yoffset * dinfo->pitch) +
-		 (xoffset * info->var.bits_per_pixel) / 8;
-
-	offset += dinfo->fb.offset << 12;
-
-	dinfo->vsync.pan_offset = offset;
-	if ((var->activate & FB_ACTIVATE_VBL) &&
-	    !intelfbhw_enable_irq(dinfo))
-		dinfo->vsync.pan_display = 1;
-	else {
-		dinfo->vsync.pan_display = 0;
-		OUTREG(DSPABASE, offset);
-	}
-
-	return 0;
-}
-
-/* Blank the screen. */
-void intelfbhw_do_blank(int blank, struct fb_info *info)
-{
-	struct intelfb_info *dinfo = GET_DINFO(info);
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_do_blank: blank is %d\n", blank);
-#endif
-
-	/* Turn plane A on or off */
-	tmp = INREG(DSPACNTR);
-	if (blank)
-		tmp &= ~DISPPLANE_PLANE_ENABLE;
-	else
-		tmp |= DISPPLANE_PLANE_ENABLE;
-	OUTREG(DSPACNTR, tmp);
-	/* Flush */
-	tmp = INREG(DSPABASE);
-	OUTREG(DSPABASE, tmp);
-
-	/* Turn off/on the HW cursor */
-#if VERBOSE > 0
-	DBG_MSG("cursor_on is %d\n", dinfo->cursor_on);
-#endif
-	if (dinfo->cursor_on) {
-		if (blank)
-			intelfbhw_cursor_hide(dinfo);
-		else
-			intelfbhw_cursor_show(dinfo);
-		dinfo->cursor_on = 1;
-	}
-	dinfo->cursor_blanked = blank;
-
-	/* Set DPMS level */
-	tmp = INREG(ADPA) & ~ADPA_DPMS_CONTROL_MASK;
-	switch (blank) {
-	case FB_BLANK_UNBLANK:
-	case FB_BLANK_NORMAL:
-		tmp |= ADPA_DPMS_D0;
-		break;
-	case FB_BLANK_VSYNC_SUSPEND:
-		tmp |= ADPA_DPMS_D1;
-		break;
-	case FB_BLANK_HSYNC_SUSPEND:
-		tmp |= ADPA_DPMS_D2;
-		break;
-	case FB_BLANK_POWERDOWN:
-		tmp |= ADPA_DPMS_D3;
-		break;
-	}
-	OUTREG(ADPA, tmp);
-
-	return;
-}
-
-
-/* Check which pipe is connected to an active display plane. */
-int intelfbhw_active_pipe(const struct intelfb_hwstate *hw)
-{
-	int pipe = -1;
-
-	/* keep old default behaviour - prefer PIPE_A */
-	if (hw->disp_b_ctrl & DISPPLANE_PLANE_ENABLE) {
-		pipe = (hw->disp_b_ctrl >> DISPPLANE_SEL_PIPE_SHIFT);
-		pipe &= PIPE_MASK;
-		if (unlikely(pipe == PIPE_A))
-			return PIPE_A;
-	}
-	if (hw->disp_a_ctrl & DISPPLANE_PLANE_ENABLE) {
-		pipe = (hw->disp_a_ctrl >> DISPPLANE_SEL_PIPE_SHIFT);
-		pipe &= PIPE_MASK;
-		if (likely(pipe == PIPE_A))
-			return PIPE_A;
-	}
-	/* Impossible that no pipe is selected - return PIPE_A */
-	WARN_ON(pipe == -1);
-	if (unlikely(pipe == -1))
-		pipe = PIPE_A;
-
-	return pipe;
-}
-
-void intelfbhw_setcolreg(struct intelfb_info *dinfo, unsigned regno,
-			 unsigned red, unsigned green, unsigned blue,
-			 unsigned transp)
-{
-	u32 palette_reg = (dinfo->pipe == PIPE_A) ?
-			  PALETTE_A : PALETTE_B;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_setcolreg: %d: (%d, %d, %d)\n",
-		regno, red, green, blue);
-#endif
-
-	OUTREG(palette_reg + (regno << 2),
-	       (red << PALETTE_8_RED_SHIFT) |
-	       (green << PALETTE_8_GREEN_SHIFT) |
-	       (blue << PALETTE_8_BLUE_SHIFT));
-}
-
-
-int intelfbhw_read_hw_state(struct intelfb_info *dinfo,
-			    struct intelfb_hwstate *hw, int flag)
-{
-	int i;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_read_hw_state\n");
-#endif
-
-	if (!hw || !dinfo)
-		return -1;
-
-	/* Read in as much of the HW state as possible. */
-	hw->vga0_divisor = INREG(VGA0_DIVISOR);
-	hw->vga1_divisor = INREG(VGA1_DIVISOR);
-	hw->vga_pd = INREG(VGAPD);
-	hw->dpll_a = INREG(DPLL_A);
-	hw->dpll_b = INREG(DPLL_B);
-	hw->fpa0 = INREG(FPA0);
-	hw->fpa1 = INREG(FPA1);
-	hw->fpb0 = INREG(FPB0);
-	hw->fpb1 = INREG(FPB1);
-
-	if (flag == 1)
-		return flag;
-
-#if 0
-	/* This seems to be a problem with the 852GM/855GM */
-	for (i = 0; i < PALETTE_8_ENTRIES; i++) {
-		hw->palette_a[i] = INREG(PALETTE_A + (i << 2));
-		hw->palette_b[i] = INREG(PALETTE_B + (i << 2));
-	}
-#endif
-
-	if (flag == 2)
-		return flag;
-
-	hw->htotal_a = INREG(HTOTAL_A);
-	hw->hblank_a = INREG(HBLANK_A);
-	hw->hsync_a = INREG(HSYNC_A);
-	hw->vtotal_a = INREG(VTOTAL_A);
-	hw->vblank_a = INREG(VBLANK_A);
-	hw->vsync_a = INREG(VSYNC_A);
-	hw->src_size_a = INREG(SRC_SIZE_A);
-	hw->bclrpat_a = INREG(BCLRPAT_A);
-	hw->htotal_b = INREG(HTOTAL_B);
-	hw->hblank_b = INREG(HBLANK_B);
-	hw->hsync_b = INREG(HSYNC_B);
-	hw->vtotal_b = INREG(VTOTAL_B);
-	hw->vblank_b = INREG(VBLANK_B);
-	hw->vsync_b = INREG(VSYNC_B);
-	hw->src_size_b = INREG(SRC_SIZE_B);
-	hw->bclrpat_b = INREG(BCLRPAT_B);
-
-	if (flag == 3)
-		return flag;
-
-	hw->adpa = INREG(ADPA);
-	hw->dvoa = INREG(DVOA);
-	hw->dvob = INREG(DVOB);
-	hw->dvoc = INREG(DVOC);
-	hw->dvoa_srcdim = INREG(DVOA_SRCDIM);
-	hw->dvob_srcdim = INREG(DVOB_SRCDIM);
-	hw->dvoc_srcdim = INREG(DVOC_SRCDIM);
-	hw->lvds = INREG(LVDS);
-
-	if (flag == 4)
-		return flag;
-
-	hw->pipe_a_conf = INREG(PIPEACONF);
-	hw->pipe_b_conf = INREG(PIPEBCONF);
-	hw->disp_arb = INREG(DISPARB);
-
-	if (flag == 5)
-		return flag;
-
-	hw->cursor_a_control = INREG(CURSOR_A_CONTROL);
-	hw->cursor_b_control = INREG(CURSOR_B_CONTROL);
-	hw->cursor_a_base = INREG(CURSOR_A_BASEADDR);
-	hw->cursor_b_base = INREG(CURSOR_B_BASEADDR);
-
-	if (flag == 6)
-		return flag;
-
-	for (i = 0; i < 4; i++) {
-		hw->cursor_a_palette[i] = INREG(CURSOR_A_PALETTE0 + (i << 2));
-		hw->cursor_b_palette[i] = INREG(CURSOR_B_PALETTE0 + (i << 2));
-	}
-
-	if (flag == 7)
-		return flag;
-
-	hw->cursor_size = INREG(CURSOR_SIZE);
-
-	if (flag == 8)
-		return flag;
-
-	hw->disp_a_ctrl = INREG(DSPACNTR);
-	hw->disp_b_ctrl = INREG(DSPBCNTR);
-	hw->disp_a_base = INREG(DSPABASE);
-	hw->disp_b_base = INREG(DSPBBASE);
-	hw->disp_a_stride = INREG(DSPASTRIDE);
-	hw->disp_b_stride = INREG(DSPBSTRIDE);
-
-	if (flag == 9)
-		return flag;
-
-	hw->vgacntrl = INREG(VGACNTRL);
-
-	if (flag == 10)
-		return flag;
-
-	hw->add_id = INREG(ADD_ID);
-
-	if (flag == 11)
-		return flag;
-
-	for (i = 0; i < 7; i++) {
-		hw->swf0x[i] = INREG(SWF00 + (i << 2));
-		hw->swf1x[i] = INREG(SWF10 + (i << 2));
-		if (i < 3)
-			hw->swf3x[i] = INREG(SWF30 + (i << 2));
-	}
-
-	for (i = 0; i < 8; i++)
-		hw->fence[i] = INREG(FENCE + (i << 2));
-
-	hw->instpm = INREG(INSTPM);
-	hw->mem_mode = INREG(MEM_MODE);
-	hw->fw_blc_0 = INREG(FW_BLC_0);
-	hw->fw_blc_1 = INREG(FW_BLC_1);
-
-	hw->hwstam = INREG16(HWSTAM);
-	hw->ier = INREG16(IER);
-	hw->iir = INREG16(IIR);
-	hw->imr = INREG16(IMR);
-
-	return 0;
-}
-
-
-static int calc_vclock3(int index, int m, int n, int p)
-{
-	if (p == 0 || n == 0)
-		return 0;
-	return plls[index].ref_clk * m / n / p;
-}
-
-static int calc_vclock(int index, int m1, int m2, int n, int p1, int p2,
-		       int lvds)
-{
-	struct pll_min_max *pll = &plls[index];
-	u32 m, vco, p;
-
-	m = (5 * (m1 + 2)) + (m2 + 2);
-	n += 2;
-	vco = pll->ref_clk * m / n;
-
-	if (index == PLLS_I8xx)
-		p = ((p1 + 2) * (1 << (p2 + 1)));
-	else
-		p = ((p1) * (p2 ? 5 : 10));
-	return vco / p;
-}
-
-#if REGDUMP
-static void intelfbhw_get_p1p2(struct intelfb_info *dinfo, int dpll,
-			       int *o_p1, int *o_p2)
-{
-	int p1, p2;
-
-	if (IS_I9XX(dinfo)) {
-		if (dpll & DPLL_P1_FORCE_DIV2)
-			p1 = 1;
-		else
-			p1 = (dpll >> DPLL_P1_SHIFT) & 0xff;
-
-		p1 = ffs(p1);
-
-		p2 = (dpll >> DPLL_I9XX_P2_SHIFT) & DPLL_P2_MASK;
-	} else {
-		if (dpll & DPLL_P1_FORCE_DIV2)
-			p1 = 0;
-		else
-			p1 = (dpll >> DPLL_P1_SHIFT) & DPLL_P1_MASK;
-		p2 = (dpll >> DPLL_P2_SHIFT) & DPLL_P2_MASK;
-	}
-
-	*o_p1 = p1;
-	*o_p2 = p2;
-}
-#endif
-
-
-void intelfbhw_print_hw_state(struct intelfb_info *dinfo,
-			      struct intelfb_hwstate *hw)
-{
-#if REGDUMP
-	int i, m1, m2, n, p1, p2;
-	int index = dinfo->pll_index;
-	DBG_MSG("intelfbhw_print_hw_state\n");
-
-	if (!hw)
-		return;
-	/* Read in as much of the HW state as possible. */
-	printk("hw state dump start\n");
-	printk("	VGA0_DIVISOR:		0x%08x\n", hw->vga0_divisor);
-	printk("	VGA1_DIVISOR:		0x%08x\n", hw->vga1_divisor);
-	printk("	VGAPD:			0x%08x\n", hw->vga_pd);
-	n = (hw->vga0_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m1 = (hw->vga0_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m2 = (hw->vga0_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-
-	intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2);
-
-	printk("	VGA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n",
-	       m1, m2, n, p1, p2);
-	printk("	VGA0: clock is %d\n",
-	       calc_vclock(index, m1, m2, n, p1, p2, 0));
-
-	n = (hw->vga1_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m1 = (hw->vga1_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m2 = (hw->vga1_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-
-	intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2);
-	printk("	VGA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n",
-	       m1, m2, n, p1, p2);
-	printk("	VGA1: clock is %d\n",
-	       calc_vclock(index, m1, m2, n, p1, p2, 0));
-
-	printk("	DPLL_A:			0x%08x\n", hw->dpll_a);
-	printk("	DPLL_B:			0x%08x\n", hw->dpll_b);
-	printk("	FPA0:			0x%08x\n", hw->fpa0);
-	printk("	FPA1:			0x%08x\n", hw->fpa1);
-	printk("	FPB0:			0x%08x\n", hw->fpb0);
-	printk("	FPB1:			0x%08x\n", hw->fpb1);
-
-	n = (hw->fpa0 >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m1 = (hw->fpa0 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m2 = (hw->fpa0 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-
-	intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2);
-
-	printk("	PLLA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n",
-	       m1, m2, n, p1, p2);
-	printk("	PLLA0: clock is %d\n",
-	       calc_vclock(index, m1, m2, n, p1, p2, 0));
-
-	n = (hw->fpa1 >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m1 = (hw->fpa1 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-	m2 = (hw->fpa1 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK;
-
-	intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2);
-
-	printk("	PLLA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n",
-	       m1, m2, n, p1, p2);
-	printk("	PLLA1: clock is %d\n",
-	       calc_vclock(index, m1, m2, n, p1, p2, 0));
-
-#if 0
-	printk("	PALETTE_A:\n");
-	for (i = 0; i < PALETTE_8_ENTRIES)
-		printk("	%3d:	0x%08x\n", i, hw->palette_a[i]);
-	printk("	PALETTE_B:\n");
-	for (i = 0; i < PALETTE_8_ENTRIES)
-		printk("	%3d:	0x%08x\n", i, hw->palette_b[i]);
-#endif
-
-	printk("	HTOTAL_A:		0x%08x\n", hw->htotal_a);
-	printk("	HBLANK_A:		0x%08x\n", hw->hblank_a);
-	printk("	HSYNC_A:		0x%08x\n", hw->hsync_a);
-	printk("	VTOTAL_A:		0x%08x\n", hw->vtotal_a);
-	printk("	VBLANK_A:		0x%08x\n", hw->vblank_a);
-	printk("	VSYNC_A:		0x%08x\n", hw->vsync_a);
-	printk("	SRC_SIZE_A:		0x%08x\n", hw->src_size_a);
-	printk("	BCLRPAT_A:		0x%08x\n", hw->bclrpat_a);
-	printk("	HTOTAL_B:		0x%08x\n", hw->htotal_b);
-	printk("	HBLANK_B:		0x%08x\n", hw->hblank_b);
-	printk("	HSYNC_B:		0x%08x\n", hw->hsync_b);
-	printk("	VTOTAL_B:		0x%08x\n", hw->vtotal_b);
-	printk("	VBLANK_B:		0x%08x\n", hw->vblank_b);
-	printk("	VSYNC_B:		0x%08x\n", hw->vsync_b);
-	printk("	SRC_SIZE_B:		0x%08x\n", hw->src_size_b);
-	printk("	BCLRPAT_B:		0x%08x\n", hw->bclrpat_b);
-
-	printk("	ADPA:			0x%08x\n", hw->adpa);
-	printk("	DVOA:			0x%08x\n", hw->dvoa);
-	printk("	DVOB:			0x%08x\n", hw->dvob);
-	printk("	DVOC:			0x%08x\n", hw->dvoc);
-	printk("	DVOA_SRCDIM:		0x%08x\n", hw->dvoa_srcdim);
-	printk("	DVOB_SRCDIM:		0x%08x\n", hw->dvob_srcdim);
-	printk("	DVOC_SRCDIM:		0x%08x\n", hw->dvoc_srcdim);
-	printk("	LVDS:			0x%08x\n", hw->lvds);
-
-	printk("	PIPEACONF:		0x%08x\n", hw->pipe_a_conf);
-	printk("	PIPEBCONF:		0x%08x\n", hw->pipe_b_conf);
-	printk("	DISPARB:		0x%08x\n", hw->disp_arb);
-
-	printk("	CURSOR_A_CONTROL:	0x%08x\n", hw->cursor_a_control);
-	printk("	CURSOR_B_CONTROL:	0x%08x\n", hw->cursor_b_control);
-	printk("	CURSOR_A_BASEADDR:	0x%08x\n", hw->cursor_a_base);
-	printk("	CURSOR_B_BASEADDR:	0x%08x\n", hw->cursor_b_base);
-
-	printk("	CURSOR_A_PALETTE:	");
-	for (i = 0; i < 4; i++) {
-		printk("0x%08x", hw->cursor_a_palette[i]);
-		if (i < 3)
-			printk(", ");
-	}
-	printk("\n");
-	printk("	CURSOR_B_PALETTE:	");
-	for (i = 0; i < 4; i++) {
-		printk("0x%08x", hw->cursor_b_palette[i]);
-		if (i < 3)
-			printk(", ");
-	}
-	printk("\n");
-
-	printk("	CURSOR_SIZE:		0x%08x\n", hw->cursor_size);
-
-	printk("	DSPACNTR:		0x%08x\n", hw->disp_a_ctrl);
-	printk("	DSPBCNTR:		0x%08x\n", hw->disp_b_ctrl);
-	printk("	DSPABASE:		0x%08x\n", hw->disp_a_base);
-	printk("	DSPBBASE:		0x%08x\n", hw->disp_b_base);
-	printk("	DSPASTRIDE:		0x%08x\n", hw->disp_a_stride);
-	printk("	DSPBSTRIDE:		0x%08x\n", hw->disp_b_stride);
-
-	printk("	VGACNTRL:		0x%08x\n", hw->vgacntrl);
-	printk("	ADD_ID:			0x%08x\n", hw->add_id);
-
-	for (i = 0; i < 7; i++) {
-		printk("	SWF0%d			0x%08x\n", i,
-			hw->swf0x[i]);
-	}
-	for (i = 0; i < 7; i++) {
-		printk("	SWF1%d			0x%08x\n", i,
-			hw->swf1x[i]);
-	}
-	for (i = 0; i < 3; i++) {
-		printk("	SWF3%d			0x%08x\n", i,
-		       hw->swf3x[i]);
-	}
-	for (i = 0; i < 8; i++)
-		printk("	FENCE%d			0x%08x\n", i,
-		       hw->fence[i]);
-
-	printk("	INSTPM			0x%08x\n", hw->instpm);
-	printk("	MEM_MODE		0x%08x\n", hw->mem_mode);
-	printk("	FW_BLC_0		0x%08x\n", hw->fw_blc_0);
-	printk("	FW_BLC_1		0x%08x\n", hw->fw_blc_1);
-
-	printk("	HWSTAM			0x%04x\n", hw->hwstam);
-	printk("	IER			0x%04x\n", hw->ier);
-	printk("	IIR			0x%04x\n", hw->iir);
-	printk("	IMR			0x%04x\n", hw->imr);
-	printk("hw state dump end\n");
-#endif
-}
-
-
-
-/* Split the M parameter into M1 and M2. */
-static int splitm(int index, unsigned int m, unsigned int *retm1,
-		  unsigned int *retm2)
-{
-	int m1, m2;
-	int testm;
-	struct pll_min_max *pll = &plls[index];
-
-	/* no point optimising too much - brute force m */
-	for (m1 = pll->min_m1; m1 < pll->max_m1 + 1; m1++) {
-		for (m2 = pll->min_m2; m2 < pll->max_m2 + 1; m2++) {
-			testm = (5 * (m1 + 2)) + (m2 + 2);
-			if (testm == m) {
-				*retm1 = (unsigned int)m1;
-				*retm2 = (unsigned int)m2;
-				return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-/* Split the P parameter into P1 and P2. */
-static int splitp(int index, unsigned int p, unsigned int *retp1,
-		  unsigned int *retp2)
-{
-	int p1, p2;
-	struct pll_min_max *pll = &plls[index];
-
-	if (index == PLLS_I9xx) {
-		p2 = (p % 10) ? 1 : 0;
-
-		p1 = p / (p2 ? 5 : 10);
-
-		*retp1 = (unsigned int)p1;
-		*retp2 = (unsigned int)p2;
-		return 0;
-	}
-
-	if (p % 4 == 0)
-		p2 = 1;
-	else
-		p2 = 0;
-	p1 = (p / (1 << (p2 + 1))) - 2;
-	if (p % 4 == 0 && p1 < pll->min_p1) {
-		p2 = 0;
-		p1 = (p / (1 << (p2 + 1))) - 2;
-	}
-	if (p1 < pll->min_p1 || p1 > pll->max_p1 ||
-	    (p1 + 2) * (1 << (p2 + 1)) != p) {
-		return 1;
-	} else {
-		*retp1 = (unsigned int)p1;
-		*retp2 = (unsigned int)p2;
-		return 0;
-	}
-}
-
-static int calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2,
-			   u32 *retn, u32 *retp1, u32 *retp2, u32 *retclock)
-{
-	u32 m1, m2, n, p1, p2, n1, testm;
-	u32 f_vco, p, p_best = 0, m, f_out = 0;
-	u32 err_best = 10000000;
-	u32 n_best = 0, m_best = 0, f_err;
-	u32 p_min, p_max, p_inc, div_max;
-	struct pll_min_max *pll = &plls[index];
-
-	DBG_MSG("Clock is %d\n", clock);
-
-	div_max = pll->max_vco / clock;
-
-	p_inc = (clock <= pll->p_transition_clk) ? pll->p_inc_lo : pll->p_inc_hi;
-	p_min = p_inc;
-	p_max = ROUND_DOWN_TO(div_max, p_inc);
-	if (p_min < pll->min_p)
-		p_min = pll->min_p;
-	if (p_max > pll->max_p)
-		p_max = pll->max_p;
-
-	DBG_MSG("p range is %d-%d (%d)\n", p_min, p_max, p_inc);
-
-	p = p_min;
-	do {
-		if (splitp(index, p, &p1, &p2)) {
-			WRN_MSG("cannot split p = %d\n", p);
-			p += p_inc;
-			continue;
-		}
-		n = pll->min_n;
-		f_vco = clock * p;
-
-		do {
-			m = ROUND_UP_TO(f_vco * n, pll->ref_clk) / pll->ref_clk;
-			if (m < pll->min_m)
-				m = pll->min_m + 1;
-			if (m > pll->max_m)
-				m = pll->max_m - 1;
-			for (testm = m - 1; testm <= m; testm++) {
-				f_out = calc_vclock3(index, testm, n, p);
-				if (splitm(index, testm, &m1, &m2)) {
-					WRN_MSG("cannot split m = %d\n",
-						testm);
-					continue;
-				}
-				if (clock > f_out)
-					f_err = clock - f_out;
-				else/* slightly bias the error for bigger clocks */
-					f_err = f_out - clock + 1;
-
-				if (f_err < err_best) {
-					m_best = testm;
-					n_best = n;
-					p_best = p;
-					err_best = f_err;
-				}
-			}
-			n++;
-		} while ((n <= pll->max_n) && (f_out >= clock));
-		p += p_inc;
-	} while ((p <= p_max));
-
-	if (!m_best) {
-		WRN_MSG("cannot find parameters for clock %d\n", clock);
-		return 1;
-	}
-	m = m_best;
-	n = n_best;
-	p = p_best;
-	splitm(index, m, &m1, &m2);
-	splitp(index, p, &p1, &p2);
-	n1 = n - 2;
-
-	DBG_MSG("m, n, p: %d (%d,%d), %d (%d), %d (%d,%d), "
-		"f: %d (%d), VCO: %d\n",
-		m, m1, m2, n, n1, p, p1, p2,
-		calc_vclock3(index, m, n, p),
-		calc_vclock(index, m1, m2, n1, p1, p2, 0),
-		calc_vclock3(index, m, n, p) * p);
-	*retm1 = m1;
-	*retm2 = m2;
-	*retn = n1;
-	*retp1 = p1;
-	*retp2 = p2;
-	*retclock = calc_vclock(index, m1, m2, n1, p1, p2, 0);
-
-	return 0;
-}
-
-static __inline__ int check_overflow(u32 value, u32 limit,
-				     const char *description)
-{
-	if (value > limit) {
-		WRN_MSG("%s value %d exceeds limit %d\n",
-			description, value, limit);
-		return 1;
-	}
-	return 0;
-}
-
-/* It is assumed that hw is filled in with the initial state information. */
-int intelfbhw_mode_to_hw(struct intelfb_info *dinfo,
-			 struct intelfb_hwstate *hw,
-			 struct fb_var_screeninfo *var)
-{
-	int pipe = intelfbhw_active_pipe(hw);
-	u32 *dpll, *fp0, *fp1;
-	u32 m1, m2, n, p1, p2, clock_target, clock;
-	u32 hsync_start, hsync_end, hblank_start, hblank_end, htotal, hactive;
-	u32 vsync_start, vsync_end, vblank_start, vblank_end, vtotal, vactive;
-	u32 vsync_pol, hsync_pol;
-	u32 *vs, *vb, *vt, *hs, *hb, *ht, *ss, *pipe_conf;
-	u32 stride_alignment;
-
-	DBG_MSG("intelfbhw_mode_to_hw\n");
-
-	/* Disable VGA */
-	hw->vgacntrl |= VGA_DISABLE;
-
-	/* Set which pipe's registers will be set. */
-	if (pipe == PIPE_B) {
-		dpll = &hw->dpll_b;
-		fp0 = &hw->fpb0;
-		fp1 = &hw->fpb1;
-		hs = &hw->hsync_b;
-		hb = &hw->hblank_b;
-		ht = &hw->htotal_b;
-		vs = &hw->vsync_b;
-		vb = &hw->vblank_b;
-		vt = &hw->vtotal_b;
-		ss = &hw->src_size_b;
-		pipe_conf = &hw->pipe_b_conf;
-	} else {
-		dpll = &hw->dpll_a;
-		fp0 = &hw->fpa0;
-		fp1 = &hw->fpa1;
-		hs = &hw->hsync_a;
-		hb = &hw->hblank_a;
-		ht = &hw->htotal_a;
-		vs = &hw->vsync_a;
-		vb = &hw->vblank_a;
-		vt = &hw->vtotal_a;
-		ss = &hw->src_size_a;
-		pipe_conf = &hw->pipe_a_conf;
-	}
-
-	/* Use ADPA register for sync control. */
-	hw->adpa &= ~ADPA_USE_VGA_HVPOLARITY;
-
-	/* sync polarity */
-	hsync_pol = (var->sync & FB_SYNC_HOR_HIGH_ACT) ?
-			ADPA_SYNC_ACTIVE_HIGH : ADPA_SYNC_ACTIVE_LOW;
-	vsync_pol = (var->sync & FB_SYNC_VERT_HIGH_ACT) ?
-			ADPA_SYNC_ACTIVE_HIGH : ADPA_SYNC_ACTIVE_LOW;
-	hw->adpa &= ~((ADPA_SYNC_ACTIVE_MASK << ADPA_VSYNC_ACTIVE_SHIFT) |
-		      (ADPA_SYNC_ACTIVE_MASK << ADPA_HSYNC_ACTIVE_SHIFT));
-	hw->adpa |= (hsync_pol << ADPA_HSYNC_ACTIVE_SHIFT) |
-		    (vsync_pol << ADPA_VSYNC_ACTIVE_SHIFT);
-
-	/* Connect correct pipe to the analog port DAC */
-	hw->adpa &= ~(PIPE_MASK << ADPA_PIPE_SELECT_SHIFT);
-	hw->adpa |= (pipe << ADPA_PIPE_SELECT_SHIFT);
-
-	/* Set DPMS state to D0 (on) */
-	hw->adpa &= ~ADPA_DPMS_CONTROL_MASK;
-	hw->adpa |= ADPA_DPMS_D0;
-
-	hw->adpa |= ADPA_DAC_ENABLE;
-
-	*dpll |= (DPLL_VCO_ENABLE | DPLL_VGA_MODE_DISABLE);
-	*dpll &= ~(DPLL_RATE_SELECT_MASK | DPLL_REFERENCE_SELECT_MASK);
-	*dpll |= (DPLL_REFERENCE_DEFAULT | DPLL_RATE_SELECT_FP0);
-
-	/* Desired clock in kHz */
-	clock_target = 1000000000 / var->pixclock;
-
-	if (calc_pll_params(dinfo->pll_index, clock_target, &m1, &m2,
-			    &n, &p1, &p2, &clock)) {
-		WRN_MSG("calc_pll_params failed\n");
-		return 1;
-	}
-
-	/* Check for overflow. */
-	if (check_overflow(p1, DPLL_P1_MASK, "PLL P1 parameter"))
-		return 1;
-	if (check_overflow(p2, DPLL_P2_MASK, "PLL P2 parameter"))
-		return 1;
-	if (check_overflow(m1, FP_DIVISOR_MASK, "PLL M1 parameter"))
-		return 1;
-	if (check_overflow(m2, FP_DIVISOR_MASK, "PLL M2 parameter"))
-		return 1;
-	if (check_overflow(n, FP_DIVISOR_MASK, "PLL N parameter"))
-		return 1;
-
-	*dpll &= ~DPLL_P1_FORCE_DIV2;
-	*dpll &= ~((DPLL_P2_MASK << DPLL_P2_SHIFT) |
-		   (DPLL_P1_MASK << DPLL_P1_SHIFT));
-
-	if (IS_I9XX(dinfo)) {
-		*dpll |= (p2 << DPLL_I9XX_P2_SHIFT);
-		*dpll |= (1 << (p1 - 1)) << DPLL_P1_SHIFT;
-	} else
-		*dpll |= (p2 << DPLL_P2_SHIFT) | (p1 << DPLL_P1_SHIFT);
-
-	*fp0 = (n << FP_N_DIVISOR_SHIFT) |
-	       (m1 << FP_M1_DIVISOR_SHIFT) |
-	       (m2 << FP_M2_DIVISOR_SHIFT);
-	*fp1 = *fp0;
-
-	hw->dvob &= ~PORT_ENABLE;
-	hw->dvoc &= ~PORT_ENABLE;
-
-	/* Use display plane A. */
-	hw->disp_a_ctrl |= DISPPLANE_PLANE_ENABLE;
-	hw->disp_a_ctrl &= ~DISPPLANE_GAMMA_ENABLE;
-	hw->disp_a_ctrl &= ~DISPPLANE_PIXFORMAT_MASK;
-	switch (intelfb_var_to_depth(var)) {
-	case 8:
-		hw->disp_a_ctrl |= DISPPLANE_8BPP | DISPPLANE_GAMMA_ENABLE;
-		break;
-	case 15:
-		hw->disp_a_ctrl |= DISPPLANE_15_16BPP;
-		break;
-	case 16:
-		hw->disp_a_ctrl |= DISPPLANE_16BPP;
-		break;
-	case 24:
-		hw->disp_a_ctrl |= DISPPLANE_32BPP_NO_ALPHA;
-		break;
-	}
-	hw->disp_a_ctrl &= ~(PIPE_MASK << DISPPLANE_SEL_PIPE_SHIFT);
-	hw->disp_a_ctrl |= (pipe << DISPPLANE_SEL_PIPE_SHIFT);
-
-	/* Set CRTC registers. */
-	hactive = var->xres;
-	hsync_start = hactive + var->right_margin;
-	hsync_end = hsync_start + var->hsync_len;
-	htotal = hsync_end + var->left_margin;
-	hblank_start = hactive;
-	hblank_end = htotal;
-
-	DBG_MSG("H: act %d, ss %d, se %d, tot %d bs %d, be %d\n",
-		hactive, hsync_start, hsync_end, htotal, hblank_start,
-		hblank_end);
-
-	vactive = var->yres;
-	if (var->vmode & FB_VMODE_INTERLACED)
-		vactive--; /* the chip adds 2 halflines automatically */
-	vsync_start = vactive + var->lower_margin;
-	vsync_end = vsync_start + var->vsync_len;
-	vtotal = vsync_end + var->upper_margin;
-	vblank_start = vactive;
-	vblank_end = vsync_end + 1;
-
-	DBG_MSG("V: act %d, ss %d, se %d, tot %d bs %d, be %d\n",
-		vactive, vsync_start, vsync_end, vtotal, vblank_start,
-		vblank_end);
-
-	/* Adjust for register values, and check for overflow. */
-	hactive--;
-	if (check_overflow(hactive, HACTIVE_MASK, "CRTC hactive"))
-		return 1;
-	hsync_start--;
-	if (check_overflow(hsync_start, HSYNCSTART_MASK, "CRTC hsync_start"))
-		return 1;
-	hsync_end--;
-	if (check_overflow(hsync_end, HSYNCEND_MASK, "CRTC hsync_end"))
-		return 1;
-	htotal--;
-	if (check_overflow(htotal, HTOTAL_MASK, "CRTC htotal"))
-		return 1;
-	hblank_start--;
-	if (check_overflow(hblank_start, HBLANKSTART_MASK, "CRTC hblank_start"))
-		return 1;
-	hblank_end--;
-	if (check_overflow(hblank_end, HBLANKEND_MASK, "CRTC hblank_end"))
-		return 1;
-
-	vactive--;
-	if (check_overflow(vactive, VACTIVE_MASK, "CRTC vactive"))
-		return 1;
-	vsync_start--;
-	if (check_overflow(vsync_start, VSYNCSTART_MASK, "CRTC vsync_start"))
-		return 1;
-	vsync_end--;
-	if (check_overflow(vsync_end, VSYNCEND_MASK, "CRTC vsync_end"))
-		return 1;
-	vtotal--;
-	if (check_overflow(vtotal, VTOTAL_MASK, "CRTC vtotal"))
-		return 1;
-	vblank_start--;
-	if (check_overflow(vblank_start, VBLANKSTART_MASK, "CRTC vblank_start"))
-		return 1;
-	vblank_end--;
-	if (check_overflow(vblank_end, VBLANKEND_MASK, "CRTC vblank_end"))
-		return 1;
-
-	*ht = (htotal << HTOTAL_SHIFT) | (hactive << HACTIVE_SHIFT);
-	*hb = (hblank_start << HBLANKSTART_SHIFT) |
-	      (hblank_end << HSYNCEND_SHIFT);
-	*hs = (hsync_start << HSYNCSTART_SHIFT) | (hsync_end << HSYNCEND_SHIFT);
-
-	*vt = (vtotal << VTOTAL_SHIFT) | (vactive << VACTIVE_SHIFT);
-	*vb = (vblank_start << VBLANKSTART_SHIFT) |
-	      (vblank_end << VSYNCEND_SHIFT);
-	*vs = (vsync_start << VSYNCSTART_SHIFT) | (vsync_end << VSYNCEND_SHIFT);
-	*ss = (hactive << SRC_SIZE_HORIZ_SHIFT) |
-	      (vactive << SRC_SIZE_VERT_SHIFT);
-
-	hw->disp_a_stride = dinfo->pitch;
-	DBG_MSG("pitch is %d\n", hw->disp_a_stride);
-
-	hw->disp_a_base = hw->disp_a_stride * var->yoffset +
-			  var->xoffset * var->bits_per_pixel / 8;
-
-	hw->disp_a_base += dinfo->fb.offset << 12;
-
-	/* Check stride alignment. */
-	stride_alignment = IS_I9XX(dinfo) ? STRIDE_ALIGNMENT_I9XX :
-					    STRIDE_ALIGNMENT;
-	if (hw->disp_a_stride % stride_alignment != 0) {
-		WRN_MSG("display stride %d has bad alignment %d\n",
-			hw->disp_a_stride, stride_alignment);
-		return 1;
-	}
-
-	/* Set the palette to 8-bit mode. */
-	*pipe_conf &= ~PIPECONF_GAMMA;
-
-	if (var->vmode & FB_VMODE_INTERLACED)
-		*pipe_conf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
-	else
-		*pipe_conf &= ~PIPECONF_INTERLACE_MASK;
-
-	return 0;
-}
-
-/* Program a (non-VGA) video mode. */
-int intelfbhw_program_mode(struct intelfb_info *dinfo,
-			   const struct intelfb_hwstate *hw, int blank)
-{
-	u32 tmp;
-	const u32 *dpll, *fp0, *fp1, *pipe_conf;
-	const u32 *hs, *ht, *hb, *vs, *vt, *vb, *ss;
-	u32 dpll_reg, fp0_reg, fp1_reg, pipe_conf_reg, pipe_stat_reg;
-	u32 hsync_reg, htotal_reg, hblank_reg;
-	u32 vsync_reg, vtotal_reg, vblank_reg;
-	u32 src_size_reg;
-	u32 count, tmp_val[3];
-
-	/* Assume single pipe */
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_program_mode\n");
-#endif
-
-	/* Disable VGA */
-	tmp = INREG(VGACNTRL);
-	tmp |= VGA_DISABLE;
-	OUTREG(VGACNTRL, tmp);
-
-	dinfo->pipe = intelfbhw_active_pipe(hw);
-
-	if (dinfo->pipe == PIPE_B) {
-		dpll = &hw->dpll_b;
-		fp0 = &hw->fpb0;
-		fp1 = &hw->fpb1;
-		pipe_conf = &hw->pipe_b_conf;
-		hs = &hw->hsync_b;
-		hb = &hw->hblank_b;
-		ht = &hw->htotal_b;
-		vs = &hw->vsync_b;
-		vb = &hw->vblank_b;
-		vt = &hw->vtotal_b;
-		ss = &hw->src_size_b;
-		dpll_reg = DPLL_B;
-		fp0_reg = FPB0;
-		fp1_reg = FPB1;
-		pipe_conf_reg = PIPEBCONF;
-		pipe_stat_reg = PIPEBSTAT;
-		hsync_reg = HSYNC_B;
-		htotal_reg = HTOTAL_B;
-		hblank_reg = HBLANK_B;
-		vsync_reg = VSYNC_B;
-		vtotal_reg = VTOTAL_B;
-		vblank_reg = VBLANK_B;
-		src_size_reg = SRC_SIZE_B;
-	} else {
-		dpll = &hw->dpll_a;
-		fp0 = &hw->fpa0;
-		fp1 = &hw->fpa1;
-		pipe_conf = &hw->pipe_a_conf;
-		hs = &hw->hsync_a;
-		hb = &hw->hblank_a;
-		ht = &hw->htotal_a;
-		vs = &hw->vsync_a;
-		vb = &hw->vblank_a;
-		vt = &hw->vtotal_a;
-		ss = &hw->src_size_a;
-		dpll_reg = DPLL_A;
-		fp0_reg = FPA0;
-		fp1_reg = FPA1;
-		pipe_conf_reg = PIPEACONF;
-		pipe_stat_reg = PIPEASTAT;
-		hsync_reg = HSYNC_A;
-		htotal_reg = HTOTAL_A;
-		hblank_reg = HBLANK_A;
-		vsync_reg = VSYNC_A;
-		vtotal_reg = VTOTAL_A;
-		vblank_reg = VBLANK_A;
-		src_size_reg = SRC_SIZE_A;
-	}
-
-	/* turn off pipe */
-	tmp = INREG(pipe_conf_reg);
-	tmp &= ~PIPECONF_ENABLE;
-	OUTREG(pipe_conf_reg, tmp);
-
-	count = 0;
-	do {
-		tmp_val[count % 3] = INREG(PIPEA_DSL);
-		if ((tmp_val[0] == tmp_val[1]) && (tmp_val[1] == tmp_val[2]))
-			break;
-		count++;
-		udelay(1);
-		if (count % 200 == 0) {
-			tmp = INREG(pipe_conf_reg);
-			tmp &= ~PIPECONF_ENABLE;
-			OUTREG(pipe_conf_reg, tmp);
-		}
-	} while (count < 2000);
-
-	OUTREG(ADPA, INREG(ADPA) & ~ADPA_DAC_ENABLE);
-
-	/* Disable planes A and B. */
-	tmp = INREG(DSPACNTR);
-	tmp &= ~DISPPLANE_PLANE_ENABLE;
-	OUTREG(DSPACNTR, tmp);
-	tmp = INREG(DSPBCNTR);
-	tmp &= ~DISPPLANE_PLANE_ENABLE;
-	OUTREG(DSPBCNTR, tmp);
-
-	/* Wait for vblank. For now, just wait for a 50Hz cycle (20ms)) */
-	mdelay(20);
-
-	OUTREG(DVOB, INREG(DVOB) & ~PORT_ENABLE);
-	OUTREG(DVOC, INREG(DVOC) & ~PORT_ENABLE);
-	OUTREG(ADPA, INREG(ADPA) & ~ADPA_DAC_ENABLE);
-
-	/* Disable Sync */
-	tmp = INREG(ADPA);
-	tmp &= ~ADPA_DPMS_CONTROL_MASK;
-	tmp |= ADPA_DPMS_D3;
-	OUTREG(ADPA, tmp);
-
-	/* do some funky magic - xyzzy */
-	OUTREG(0x61204, 0xabcd0000);
-
-	/* turn off PLL */
-	tmp = INREG(dpll_reg);
-	tmp &= ~DPLL_VCO_ENABLE;
-	OUTREG(dpll_reg, tmp);
-
-	/* Set PLL parameters */
-	OUTREG(fp0_reg, *fp0);
-	OUTREG(fp1_reg, *fp1);
-
-	/* Enable PLL */
-	OUTREG(dpll_reg, *dpll);
-
-	/* Set DVOs B/C */
-	OUTREG(DVOB, hw->dvob);
-	OUTREG(DVOC, hw->dvoc);
-
-	/* undo funky magic */
-	OUTREG(0x61204, 0x00000000);
-
-	/* Set ADPA */
-	OUTREG(ADPA, INREG(ADPA) | ADPA_DAC_ENABLE);
-	OUTREG(ADPA, (hw->adpa & ~(ADPA_DPMS_CONTROL_MASK)) | ADPA_DPMS_D3);
-
-	/* Set pipe parameters */
-	OUTREG(hsync_reg, *hs);
-	OUTREG(hblank_reg, *hb);
-	OUTREG(htotal_reg, *ht);
-	OUTREG(vsync_reg, *vs);
-	OUTREG(vblank_reg, *vb);
-	OUTREG(vtotal_reg, *vt);
-	OUTREG(src_size_reg, *ss);
-
-	switch (dinfo->info->var.vmode & (FB_VMODE_INTERLACED |
-					  FB_VMODE_ODD_FLD_FIRST)) {
-	case FB_VMODE_INTERLACED | FB_VMODE_ODD_FLD_FIRST:
-		OUTREG(pipe_stat_reg, 0xFFFF | PIPESTAT_FLD_EVT_ODD_EN);
-		break;
-	case FB_VMODE_INTERLACED: /* even lines first */
-		OUTREG(pipe_stat_reg, 0xFFFF | PIPESTAT_FLD_EVT_EVEN_EN);
-		break;
-	default:		/* non-interlaced */
-		OUTREG(pipe_stat_reg, 0xFFFF); /* clear all status bits only */
-	}
-	/* Enable pipe */
-	OUTREG(pipe_conf_reg, *pipe_conf | PIPECONF_ENABLE);
-
-	/* Enable sync */
-	tmp = INREG(ADPA);
-	tmp &= ~ADPA_DPMS_CONTROL_MASK;
-	tmp |= ADPA_DPMS_D0;
-	OUTREG(ADPA, tmp);
-
-	/* setup display plane */
-	if (dinfo->pdev->device == PCI_DEVICE_ID_INTEL_830M) {
-		/*
-		 *      i830M errata: the display plane must be enabled
-		 *      to allow writes to the other bits in the plane
-		 *      control register.
-		 */
-		tmp = INREG(DSPACNTR);
-		if ((tmp & DISPPLANE_PLANE_ENABLE) != DISPPLANE_PLANE_ENABLE) {
-			tmp |= DISPPLANE_PLANE_ENABLE;
-			OUTREG(DSPACNTR, tmp);
-			OUTREG(DSPACNTR,
-			       hw->disp_a_ctrl|DISPPLANE_PLANE_ENABLE);
-			mdelay(1);
-		}
-	}
-
-	OUTREG(DSPACNTR, hw->disp_a_ctrl & ~DISPPLANE_PLANE_ENABLE);
-	OUTREG(DSPASTRIDE, hw->disp_a_stride);
-	OUTREG(DSPABASE, hw->disp_a_base);
-
-	/* Enable plane */
-	if (!blank) {
-		tmp = INREG(DSPACNTR);
-		tmp |= DISPPLANE_PLANE_ENABLE;
-		OUTREG(DSPACNTR, tmp);
-		OUTREG(DSPABASE, hw->disp_a_base);
-	}
-
-	return 0;
-}
-
-/* forward declarations */
-static void refresh_ring(struct intelfb_info *dinfo);
-static void reset_state(struct intelfb_info *dinfo);
-static void do_flush(struct intelfb_info *dinfo);
-
-static  u32 get_ring_space(struct intelfb_info *dinfo)
-{
-	u32 ring_space;
-
-	if (dinfo->ring_tail >= dinfo->ring_head)
-		ring_space = dinfo->ring.size -
-			(dinfo->ring_tail - dinfo->ring_head);
-	else
-		ring_space = dinfo->ring_head - dinfo->ring_tail;
-
-	if (ring_space > RING_MIN_FREE)
-		ring_space -= RING_MIN_FREE;
-	else
-		ring_space = 0;
-
-	return ring_space;
-}
-
-static int wait_ring(struct intelfb_info *dinfo, int n)
-{
-	int i = 0;
-	unsigned long end;
-	u32 last_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK;
-
-#if VERBOSE > 0
-	DBG_MSG("wait_ring: %d\n", n);
-#endif
-
-	end = jiffies + (HZ * 3);
-	while (dinfo->ring_space < n) {
-		dinfo->ring_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK;
-		dinfo->ring_space = get_ring_space(dinfo);
-
-		if (dinfo->ring_head != last_head) {
-			end = jiffies + (HZ * 3);
-			last_head = dinfo->ring_head;
-		}
-		i++;
-		if (time_before(end, jiffies)) {
-			if (!i) {
-				/* Try again */
-				reset_state(dinfo);
-				refresh_ring(dinfo);
-				do_flush(dinfo);
-				end = jiffies + (HZ * 3);
-				i = 1;
-			} else {
-				WRN_MSG("ring buffer : space: %d wanted %d\n",
-					dinfo->ring_space, n);
-				WRN_MSG("lockup - turning off hardware "
-					"acceleration\n");
-				dinfo->ring_lockup = 1;
-				break;
-			}
-		}
-		udelay(1);
-	}
-	return i;
-}
-
-static void do_flush(struct intelfb_info *dinfo)
-{
-	START_RING(2);
-	OUT_RING(MI_FLUSH | MI_WRITE_DIRTY_STATE | MI_INVALIDATE_MAP_CACHE);
-	OUT_RING(MI_NOOP);
-	ADVANCE_RING();
-}
-
-void intelfbhw_do_sync(struct intelfb_info *dinfo)
-{
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_do_sync\n");
-#endif
-
-	if (!dinfo->accel)
-		return;
-
-	/*
-	 * Send a flush, then wait until the ring is empty.  This is what
-	 * the XFree86 driver does, and actually it doesn't seem a lot worse
-	 * than the recommended method (both have problems).
-	 */
-	do_flush(dinfo);
-	wait_ring(dinfo, dinfo->ring.size - RING_MIN_FREE);
-	dinfo->ring_space = dinfo->ring.size - RING_MIN_FREE;
-}
-
-static void refresh_ring(struct intelfb_info *dinfo)
-{
-#if VERBOSE > 0
-	DBG_MSG("refresh_ring\n");
-#endif
-
-	dinfo->ring_head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK;
-	dinfo->ring_tail = INREG(PRI_RING_TAIL) & RING_TAIL_MASK;
-	dinfo->ring_space = get_ring_space(dinfo);
-}
-
-static void reset_state(struct intelfb_info *dinfo)
-{
-	int i;
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("reset_state\n");
-#endif
-
-	for (i = 0; i < FENCE_NUM; i++)
-		OUTREG(FENCE + (i << 2), 0);
-
-	/* Flush the ring buffer if it's enabled. */
-	tmp = INREG(PRI_RING_LENGTH);
-	if (tmp & RING_ENABLE) {
-#if VERBOSE > 0
-		DBG_MSG("reset_state: ring was enabled\n");
-#endif
-		refresh_ring(dinfo);
-		intelfbhw_do_sync(dinfo);
-		DO_RING_IDLE();
-	}
-
-	OUTREG(PRI_RING_LENGTH, 0);
-	OUTREG(PRI_RING_HEAD, 0);
-	OUTREG(PRI_RING_TAIL, 0);
-	OUTREG(PRI_RING_START, 0);
-}
-
-/* Stop the 2D engine, and turn off the ring buffer. */
-void intelfbhw_2d_stop(struct intelfb_info *dinfo)
-{
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_2d_stop: accel: %d, ring_active: %d\n",
-		dinfo->accel, dinfo->ring_active);
-#endif
-
-	if (!dinfo->accel)
-		return;
-
-	dinfo->ring_active = 0;
-	reset_state(dinfo);
-}
-
-/*
- * Enable the ring buffer, and initialise the 2D engine.
- * It is assumed that the graphics engine has been stopped by previously
- * calling intelfb_2d_stop().
- */
-void intelfbhw_2d_start(struct intelfb_info *dinfo)
-{
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_2d_start: accel: %d, ring_active: %d\n",
-		dinfo->accel, dinfo->ring_active);
-#endif
-
-	if (!dinfo->accel)
-		return;
-
-	/* Initialise the primary ring buffer. */
-	OUTREG(PRI_RING_LENGTH, 0);
-	OUTREG(PRI_RING_TAIL, 0);
-	OUTREG(PRI_RING_HEAD, 0);
-
-	OUTREG(PRI_RING_START, dinfo->ring.physical & RING_START_MASK);
-	OUTREG(PRI_RING_LENGTH,
-		((dinfo->ring.size - GTT_PAGE_SIZE) & RING_LENGTH_MASK) |
-		RING_NO_REPORT | RING_ENABLE);
-	refresh_ring(dinfo);
-	dinfo->ring_active = 1;
-}
-
-/* 2D fillrect (solid fill or invert) */
-void intelfbhw_do_fillrect(struct intelfb_info *dinfo, u32 x, u32 y, u32 w,
-			   u32 h, u32 color, u32 pitch, u32 bpp, u32 rop)
-{
-	u32 br00, br09, br13, br14, br16;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_do_fillrect: (%d,%d) %dx%d, c 0x%06x, p %d bpp %d, "
-		"rop 0x%02x\n", x, y, w, h, color, pitch, bpp, rop);
-#endif
-
-	br00 = COLOR_BLT_CMD;
-	br09 = dinfo->fb_start + (y * pitch + x * (bpp / 8));
-	br13 = (rop << ROP_SHIFT) | pitch;
-	br14 = (h << HEIGHT_SHIFT) | ((w * (bpp / 8)) << WIDTH_SHIFT);
-	br16 = color;
-
-	switch (bpp) {
-	case 8:
-		br13 |= COLOR_DEPTH_8;
-		break;
-	case 16:
-		br13 |= COLOR_DEPTH_16;
-		break;
-	case 32:
-		br13 |= COLOR_DEPTH_32;
-		br00 |= WRITE_ALPHA | WRITE_RGB;
-		break;
-	}
-
-	START_RING(6);
-	OUT_RING(br00);
-	OUT_RING(br13);
-	OUT_RING(br14);
-	OUT_RING(br09);
-	OUT_RING(br16);
-	OUT_RING(MI_NOOP);
-	ADVANCE_RING();
-
-#if VERBOSE > 0
-	DBG_MSG("ring = 0x%08x, 0x%08x (%d)\n", dinfo->ring_head,
-		dinfo->ring_tail, dinfo->ring_space);
-#endif
-}
-
-void
-intelfbhw_do_bitblt(struct intelfb_info *dinfo, u32 curx, u32 cury,
-		    u32 dstx, u32 dsty, u32 w, u32 h, u32 pitch, u32 bpp)
-{
-	u32 br00, br09, br11, br12, br13, br22, br23, br26;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_do_bitblt: (%d,%d)->(%d,%d) %dx%d, p %d bpp %d\n",
-		curx, cury, dstx, dsty, w, h, pitch, bpp);
-#endif
-
-	br00 = XY_SRC_COPY_BLT_CMD;
-	br09 = dinfo->fb_start;
-	br11 = (pitch << PITCH_SHIFT);
-	br12 = dinfo->fb_start;
-	br13 = (SRC_ROP_GXCOPY << ROP_SHIFT) | (pitch << PITCH_SHIFT);
-	br22 = (dstx << WIDTH_SHIFT) | (dsty << HEIGHT_SHIFT);
-	br23 = ((dstx + w) << WIDTH_SHIFT) |
-	       ((dsty + h) << HEIGHT_SHIFT);
-	br26 = (curx << WIDTH_SHIFT) | (cury << HEIGHT_SHIFT);
-
-	switch (bpp) {
-	case 8:
-		br13 |= COLOR_DEPTH_8;
-		break;
-	case 16:
-		br13 |= COLOR_DEPTH_16;
-		break;
-	case 32:
-		br13 |= COLOR_DEPTH_32;
-		br00 |= WRITE_ALPHA | WRITE_RGB;
-		break;
-	}
-
-	START_RING(8);
-	OUT_RING(br00);
-	OUT_RING(br13);
-	OUT_RING(br22);
-	OUT_RING(br23);
-	OUT_RING(br09);
-	OUT_RING(br26);
-	OUT_RING(br11);
-	OUT_RING(br12);
-	ADVANCE_RING();
-}
-
-int intelfbhw_do_drawglyph(struct intelfb_info *dinfo, u32 fg, u32 bg, u32 w,
-			   u32 h, const u8* cdat, u32 x, u32 y, u32 pitch,
-			   u32 bpp)
-{
-	int nbytes, ndwords, pad, tmp;
-	u32 br00, br09, br13, br18, br19, br22, br23;
-	int dat, ix, iy, iw;
-	int i, j;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_do_drawglyph: (%d,%d) %dx%d\n", x, y, w, h);
-#endif
-
-	/* size in bytes of a padded scanline */
-	nbytes = ROUND_UP_TO(w, 16) / 8;
-
-	/* Total bytes of padded scanline data to write out. */
-	nbytes = nbytes * h;
-
-	/*
-	 * Check if the glyph data exceeds the immediate mode limit.
-	 * It would take a large font (1K pixels) to hit this limit.
-	 */
-	if (nbytes > MAX_MONO_IMM_SIZE)
-		return 0;
-
-	/* Src data is packaged a dword (32-bit) at a time. */
-	ndwords = ROUND_UP_TO(nbytes, 4) / 4;
-
-	/*
-	 * Ring has to be padded to a quad word. But because the command starts
-	   with 7 bytes, pad only if there is an even number of ndwords
-	 */
-	pad = !(ndwords % 2);
-
-	tmp = (XY_MONO_SRC_IMM_BLT_CMD & DW_LENGTH_MASK) + ndwords;
-	br00 = (XY_MONO_SRC_IMM_BLT_CMD & ~DW_LENGTH_MASK) | tmp;
-	br09 = dinfo->fb_start;
-	br13 = (SRC_ROP_GXCOPY << ROP_SHIFT) | (pitch << PITCH_SHIFT);
-	br18 = bg;
-	br19 = fg;
-	br22 = (x << WIDTH_SHIFT) | (y << HEIGHT_SHIFT);
-	br23 = ((x + w) << WIDTH_SHIFT) | ((y + h) << HEIGHT_SHIFT);
-
-	switch (bpp) {
-	case 8:
-		br13 |= COLOR_DEPTH_8;
-		break;
-	case 16:
-		br13 |= COLOR_DEPTH_16;
-		break;
-	case 32:
-		br13 |= COLOR_DEPTH_32;
-		br00 |= WRITE_ALPHA | WRITE_RGB;
-		break;
-	}
-
-	START_RING(8 + ndwords);
-	OUT_RING(br00);
-	OUT_RING(br13);
-	OUT_RING(br22);
-	OUT_RING(br23);
-	OUT_RING(br09);
-	OUT_RING(br18);
-	OUT_RING(br19);
-	ix = iy = 0;
-	iw = ROUND_UP_TO(w, 8) / 8;
-	while (ndwords--) {
-		dat = 0;
-		for (j = 0; j < 2; ++j) {
-			for (i = 0; i < 2; ++i) {
-				if (ix != iw || i == 0)
-					dat |= cdat[iy*iw + ix++] << (i+j*2)*8;
-			}
-			if (ix == iw && iy != (h-1)) {
-				ix = 0;
-				++iy;
-			}
-		}
-		OUT_RING(dat);
-	}
-	if (pad)
-		OUT_RING(MI_NOOP);
-	ADVANCE_RING();
-
-	return 1;
-}
-
-/* HW cursor functions. */
-void intelfbhw_cursor_init(struct intelfb_info *dinfo)
-{
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_init\n");
-#endif
-
-	if (dinfo->mobile || IS_I9XX(dinfo)) {
-		if (!dinfo->cursor.physical)
-			return;
-		tmp = INREG(CURSOR_A_CONTROL);
-		tmp &= ~(CURSOR_MODE_MASK | CURSOR_MOBILE_GAMMA_ENABLE |
-			 CURSOR_MEM_TYPE_LOCAL |
-			 (1 << CURSOR_PIPE_SELECT_SHIFT));
-		tmp |= CURSOR_MODE_DISABLE;
-		OUTREG(CURSOR_A_CONTROL, tmp);
-		OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical);
-	} else {
-		tmp = INREG(CURSOR_CONTROL);
-		tmp &= ~(CURSOR_FORMAT_MASK | CURSOR_GAMMA_ENABLE |
-			 CURSOR_ENABLE | CURSOR_STRIDE_MASK);
-		tmp |= CURSOR_FORMAT_3C;
-		OUTREG(CURSOR_CONTROL, tmp);
-		OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.offset << 12);
-		tmp = (64 << CURSOR_SIZE_H_SHIFT) |
-		      (64 << CURSOR_SIZE_V_SHIFT);
-		OUTREG(CURSOR_SIZE, tmp);
-	}
-}
-
-void intelfbhw_cursor_hide(struct intelfb_info *dinfo)
-{
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_hide\n");
-#endif
-
-	dinfo->cursor_on = 0;
-	if (dinfo->mobile || IS_I9XX(dinfo)) {
-		if (!dinfo->cursor.physical)
-			return;
-		tmp = INREG(CURSOR_A_CONTROL);
-		tmp &= ~CURSOR_MODE_MASK;
-		tmp |= CURSOR_MODE_DISABLE;
-		OUTREG(CURSOR_A_CONTROL, tmp);
-		/* Flush changes */
-		OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical);
-	} else {
-		tmp = INREG(CURSOR_CONTROL);
-		tmp &= ~CURSOR_ENABLE;
-		OUTREG(CURSOR_CONTROL, tmp);
-	}
-}
-
-void intelfbhw_cursor_show(struct intelfb_info *dinfo)
-{
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_show\n");
-#endif
-
-	dinfo->cursor_on = 1;
-
-	if (dinfo->cursor_blanked)
-		return;
-
-	if (dinfo->mobile || IS_I9XX(dinfo)) {
-		if (!dinfo->cursor.physical)
-			return;
-		tmp = INREG(CURSOR_A_CONTROL);
-		tmp &= ~CURSOR_MODE_MASK;
-		tmp |= CURSOR_MODE_64_4C_AX;
-		OUTREG(CURSOR_A_CONTROL, tmp);
-		/* Flush changes */
-		OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical);
-	} else {
-		tmp = INREG(CURSOR_CONTROL);
-		tmp |= CURSOR_ENABLE;
-		OUTREG(CURSOR_CONTROL, tmp);
-	}
-}
-
-void intelfbhw_cursor_setpos(struct intelfb_info *dinfo, int x, int y)
-{
-	u32 tmp;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_setpos: (%d, %d)\n", x, y);
-#endif
-
-	/*
-	 * Sets the position. The coordinates are assumed to already
-	 * have any offset adjusted. Assume that the cursor is never
-	 * completely off-screen, and that x, y are always >= 0.
-	 */
-
-	tmp = ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT) |
-	      ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
-	OUTREG(CURSOR_A_POSITION, tmp);
-
-	if (IS_I9XX(dinfo))
-		OUTREG(CURSOR_A_BASEADDR, dinfo->cursor.physical);
-}
-
-void intelfbhw_cursor_setcolor(struct intelfb_info *dinfo, u32 bg, u32 fg)
-{
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_setcolor\n");
-#endif
-
-	OUTREG(CURSOR_A_PALETTE0, bg & CURSOR_PALETTE_MASK);
-	OUTREG(CURSOR_A_PALETTE1, fg & CURSOR_PALETTE_MASK);
-	OUTREG(CURSOR_A_PALETTE2, fg & CURSOR_PALETTE_MASK);
-	OUTREG(CURSOR_A_PALETTE3, bg & CURSOR_PALETTE_MASK);
-}
-
-void intelfbhw_cursor_load(struct intelfb_info *dinfo, int width, int height,
-			   u8 *data)
-{
-	u8 __iomem *addr = (u8 __iomem *)dinfo->cursor.virtual;
-	int i, j, w = width / 8;
-	int mod = width % 8, t_mask, d_mask;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_load\n");
-#endif
-
-	if (!dinfo->cursor.virtual)
-		return;
-
-	t_mask = 0xff >> mod;
-	d_mask = ~(0xff >> mod);
-	for (i = height; i--; ) {
-		for (j = 0; j < w; j++) {
-			writeb(0x00, addr + j);
-			writeb(*(data++), addr + j+8);
-		}
-		if (mod) {
-			writeb(t_mask, addr + j);
-			writeb(*(data++) & d_mask, addr + j+8);
-		}
-		addr += 16;
-	}
-}
-
-void intelfbhw_cursor_reset(struct intelfb_info *dinfo)
-{
-	u8 __iomem *addr = (u8 __iomem *)dinfo->cursor.virtual;
-	int i, j;
-
-#if VERBOSE > 0
-	DBG_MSG("intelfbhw_cursor_reset\n");
-#endif
-
-	if (!dinfo->cursor.virtual)
-		return;
-
-	for (i = 64; i--; ) {
-		for (j = 0; j < 8; j++) {
-			writeb(0xff, addr + j+0);
-			writeb(0x00, addr + j+8);
-		}
-		addr += 16;
-	}
-}
-
-static irqreturn_t intelfbhw_irq(int irq, void *dev_id)
-{
-	u16 tmp;
-	struct intelfb_info *dinfo = dev_id;
-
-	spin_lock(&dinfo->int_lock);
-
-	tmp = INREG16(IIR);
-	if (dinfo->info->var.vmode & FB_VMODE_INTERLACED)
-		tmp &= PIPE_A_EVENT_INTERRUPT;
-	else
-		tmp &= VSYNC_PIPE_A_INTERRUPT; /* non-interlaced */
-
-	if (tmp == 0) {
-		spin_unlock(&dinfo->int_lock);
-		return IRQ_RETVAL(0); /* not us */
-	}
-
-	/* clear status bits 0-15 ASAP and don't touch bits 16-31 */
-	OUTREG(PIPEASTAT, INREG(PIPEASTAT));
-
-	OUTREG16(IIR, tmp);
-	if (dinfo->vsync.pan_display) {
-		dinfo->vsync.pan_display = 0;
-		OUTREG(DSPABASE, dinfo->vsync.pan_offset);
-	}
-
-	dinfo->vsync.count++;
-	wake_up_interruptible(&dinfo->vsync.wait);
-
-	spin_unlock(&dinfo->int_lock);
-
-	return IRQ_RETVAL(1);
-}
-
-int intelfbhw_enable_irq(struct intelfb_info *dinfo)
-{
-	u16 tmp;
-	if (!test_and_set_bit(0, &dinfo->irq_flags)) {
-		if (request_irq(dinfo->pdev->irq, intelfbhw_irq, IRQF_SHARED,
-				"intelfb", dinfo)) {
-			clear_bit(0, &dinfo->irq_flags);
-			return -EINVAL;
-		}
-
-		spin_lock_irq(&dinfo->int_lock);
-		OUTREG16(HWSTAM, 0xfffe); /* i830 DRM uses ffff */
-		OUTREG16(IMR, 0);
-	} else
-		spin_lock_irq(&dinfo->int_lock);
-
-	if (dinfo->info->var.vmode & FB_VMODE_INTERLACED)
-		tmp = PIPE_A_EVENT_INTERRUPT;
-	else
-		tmp = VSYNC_PIPE_A_INTERRUPT; /* non-interlaced */
-	if (tmp != INREG16(IER)) {
-		DBG_MSG("changing IER to 0x%X\n", tmp);
-		OUTREG16(IER, tmp);
-	}
-
-	spin_unlock_irq(&dinfo->int_lock);
-	return 0;
-}
-
-void intelfbhw_disable_irq(struct intelfb_info *dinfo)
-{
-	if (test_and_clear_bit(0, &dinfo->irq_flags)) {
-		if (dinfo->vsync.pan_display) {
-			dinfo->vsync.pan_display = 0;
-			OUTREG(DSPABASE, dinfo->vsync.pan_offset);
-		}
-		spin_lock_irq(&dinfo->int_lock);
-		OUTREG16(HWSTAM, 0xffff);
-		OUTREG16(IMR, 0xffff);
-		OUTREG16(IER, 0x0);
-
-		OUTREG16(IIR, INREG16(IIR)); /* clear IRQ requests */
-		spin_unlock_irq(&dinfo->int_lock);
-
-		free_irq(dinfo->pdev->irq, dinfo);
-	}
-}
-
-int intelfbhw_wait_for_vsync(struct intelfb_info *dinfo, u32 pipe)
-{
-	struct intelfb_vsync *vsync;
-	unsigned int count;
-	int ret;
-
-	switch (pipe) {
-		case 0:
-			vsync = &dinfo->vsync;
-			break;
-		default:
-			return -ENODEV;
-	}
-
-	ret = intelfbhw_enable_irq(dinfo);
-	if (ret)
-		return ret;
-
-	count = vsync->count;
-	ret = wait_event_interruptible_timeout(vsync->wait,
-					       count != vsync->count, HZ / 10);
-	if (ret < 0)
-		return ret;
-	if (ret == 0) {
-		DBG_MSG("wait_for_vsync timed out!\n");
-		return -ETIMEDOUT;
-	}
-
-	return 0;
-}

drivers/video/fbdev/intelfb/intelfbhw.h

···
-#ifndef _INTELFBHW_H
-#define _INTELFBHW_H
-
-/* $DHD: intelfb/intelfbhw.h,v 1.5 2003/06/27 15:06:25 dawes Exp $ */
-
-
-/*** HW-specific data ***/
-
-/* Information about the 852GM/855GM variants */
-#define INTEL_85X_CAPID		0x44
-#define INTEL_85X_VARIANT_MASK		0x7
-#define INTEL_85X_VARIANT_SHIFT		5
-#define INTEL_VAR_855GME		0x0
-#define INTEL_VAR_855GM			0x4
-#define INTEL_VAR_852GME		0x2
-#define INTEL_VAR_852GM			0x5
-
-/* Information about DVO/LVDS Ports */
-#define DVOA_PORT  0x1
-#define DVOB_PORT  0x2
-#define DVOC_PORT  0x4
-#define LVDS_PORT  0x8
-
-/*
- * The Bridge device's PCI config space has information about the
- * fb aperture size and the amount of pre-reserved memory.
- */
-#define INTEL_GMCH_CTRL		0x52
-#define INTEL_GMCH_ENABLED		0x4
-#define INTEL_GMCH_MEM_MASK		0x1
-#define INTEL_GMCH_MEM_64M		0x1
-#define INTEL_GMCH_MEM_128M		0
-
-#define INTEL_830_GMCH_GMS_MASK		(0x7 << 4)
-#define INTEL_830_GMCH_GMS_DISABLED	(0x0 << 4)
-#define INTEL_830_GMCH_GMS_LOCAL	(0x1 << 4)
-#define INTEL_830_GMCH_GMS_STOLEN_512	(0x2 << 4)
-#define INTEL_830_GMCH_GMS_STOLEN_1024	(0x3 << 4)
-#define INTEL_830_GMCH_GMS_STOLEN_8192	(0x4 << 4)
-
-#define INTEL_855_GMCH_GMS_MASK		(0x7 << 4)
-#define INTEL_855_GMCH_GMS_DISABLED	(0x0 << 4)
-#define INTEL_855_GMCH_GMS_STOLEN_1M	(0x1 << 4)
-#define INTEL_855_GMCH_GMS_STOLEN_4M	(0x2 << 4)
-#define INTEL_855_GMCH_GMS_STOLEN_8M	(0x3 << 4)
-#define INTEL_855_GMCH_GMS_STOLEN_16M	(0x4 << 4)
-#define INTEL_855_GMCH_GMS_STOLEN_32M	(0x5 << 4)
-
-#define INTEL_915G_GMCH_GMS_STOLEN_48M	(0x6 << 4)
-#define INTEL_915G_GMCH_GMS_STOLEN_64M	(0x7 << 4)
-
-/* HW registers */
-
-/* Fence registers */
-#define FENCE			0x2000
-#define FENCE_NUM			8
-
-/* Primary ring buffer */
-#define PRI_RING_TAIL		0x2030
-#define RING_TAIL_MASK			0x001ffff8
-#define RING_INUSE			0x1
-
-#define PRI_RING_HEAD		0x2034
-#define RING_HEAD_WRAP_MASK		0x7ff
-#define RING_HEAD_WRAP_SHIFT		21
-#define RING_HEAD_MASK			0x001ffffc
-
-#define PRI_RING_START		0x2038
-#define RING_START_MASK			0xfffff000
-
-#define PRI_RING_LENGTH		0x203c
-#define RING_LENGTH_MASK		0x001ff000
-#define RING_REPORT_MASK		(0x3 << 1)
-#define RING_NO_REPORT			(0x0 << 1)
-#define RING_REPORT_64K			(0x1 << 1)
-#define RING_REPORT_4K			(0x2 << 1)
-#define RING_REPORT_128K		(0x3 << 1)
-#define RING_ENABLE			0x1
-
-/*
- * Tail can't wrap to any closer than RING_MIN_FREE bytes of the head,
- * and the last RING_MIN_FREE bytes need to be padded with MI_NOOP
- */
-#define RING_MIN_FREE			64
-
-#define IPEHR			0x2088
-
-#define INSTDONE		0x2090
-#define PRI_RING_EMPTY			1
-
-#define HWSTAM			0x2098
-#define IER			0x20A0
-#define IIR			0x20A4
-#define IMR			0x20A8
-#define VSYNC_PIPE_A_INTERRUPT		(1 << 7)
-#define PIPE_A_EVENT_INTERRUPT		(1 << 6)
-#define VSYNC_PIPE_B_INTERRUPT		(1 << 5)
-#define PIPE_B_EVENT_INTERRUPT		(1 << 4)
-#define HOST_PORT_EVENT_INTERRUPT	(1 << 3)
-#define CAPTURE_EVENT_INTERRUPT		(1 << 2)
-#define USER_DEFINED_INTERRUPT		(1 << 1)
-#define BREAKPOINT_INTERRUPT		1
-
-#define INSTPM			0x20c0
-#define SYNC_FLUSH_ENABLE		(1 << 5)
-
-#define INSTPS			0x20c4
-
-#define MEM_MODE		0x20cc
-
-#define MASK_SHIFT			16
-
-#define FW_BLC_0		0x20d8
-#define FW_DISPA_WM_SHIFT		0
-#define FW_DISPA_WM_MASK		0x3f
-#define FW_DISPA_BL_SHIFT		8
-#define FW_DISPA_BL_MASK		0xf
-#define FW_DISPB_WM_SHIFT		16
-#define FW_DISPB_WM_MASK		0x1f
-#define FW_DISPB_BL_SHIFT		24
-#define FW_DISPB_BL_MASK		0x7
-
-#define FW_BLC_1		0x20dc
-#define FW_DISPC_WM_SHIFT		0
-#define FW_DISPC_WM_MASK		0x1f
-#define FW_DISPC_BL_SHIFT		8
-#define FW_DISPC_BL_MASK		0x7
-
-#define GPIOA             0x5010
-#define GPIOB             0x5014
-#define GPIOC             0x5018 /* this may be external DDC on i830 */
-#define GPIOD             0x501C /* this is DVO DDC */
-#define GPIOE             0x5020 /* this is DVO i2C */
-#define GPIOF             0x5024
-
-/* PLL registers */
-#define VGA0_DIVISOR		0x06000
-#define VGA1_DIVISOR		0x06004
-#define VGAPD			0x06010
-#define VGAPD_0_P1_SHIFT		0
-#define VGAPD_0_P1_FORCE_DIV2		(1 << 5)
-#define VGAPD_0_P2_SHIFT		7
-#define VGAPD_1_P1_SHIFT		8
-#define VGAPD_1_P1_FORCE_DIV2		(1 << 13)
-#define VGAPD_1_P2_SHIFT		15
-
-#define DPLL_A			0x06014
-#define DPLL_B			0x06018
-#define DPLL_VCO_ENABLE			(1 << 31)
-#define DPLL_2X_CLOCK_ENABLE		(1 << 30)
-#define DPLL_SYNCLOCK_ENABLE		(1 << 29)
-#define DPLL_VGA_MODE_DISABLE		(1 << 28)
-#define DPLL_P2_MASK			1
-#define DPLL_P2_SHIFT			23
-#define DPLL_I9XX_P2_SHIFT              24
-#define DPLL_P1_FORCE_DIV2		(1 << 21)
-#define DPLL_P1_MASK			0x1f
-#define DPLL_P1_SHIFT			16
-#define DPLL_REFERENCE_SELECT_MASK	(0x3 << 13)
-#define DPLL_REFERENCE_DEFAULT		(0x0 << 13)
-#define DPLL_REFERENCE_TVCLK		(0x2 << 13)
-#define DPLL_RATE_SELECT_MASK		(1 << 8)
-#define DPLL_RATE_SELECT_FP0		(0 << 8)
-#define DPLL_RATE_SELECT_FP1		(1 << 8)
-
-#define FPA0			0x06040
-#define FPA1			0x06044
-#define FPB0			0x06048
-#define FPB1			0x0604c
-#define FP_DIVISOR_MASK			0x3f
-#define FP_N_DIVISOR_SHIFT		16
-#define FP_M1_DIVISOR_SHIFT		8
-#define FP_M2_DIVISOR_SHIFT		0
-
-/* PLL parameters (these are for 852GM/855GM/865G, check earlier chips). */
-/* Clock values are in units of kHz */
-#define PLL_REFCLK		48000
-#define MIN_CLOCK		25000
-#define MAX_CLOCK		350000
-
-/* Two pipes */
-#define PIPE_A			0
-#define PIPE_B			1
-#define PIPE_MASK		1
-
-/* palette registers */
-#define PALETTE_A		0x0a000
-#define PALETTE_B		0x0a800
-#ifndef PALETTE_8_ENTRIES
-#define PALETTE_8_ENTRIES		256
-#endif
-#define PALETTE_8_SIZE			(PALETTE_8_ENTRIES * 4)
-#define PALETTE_10_ENTRIES		128
-#define PALETTE_10_SIZE			(PALETTE_10_ENTRIES * 8)
-#define PALETTE_8_MASK			0xff
-#define PALETTE_8_RED_SHIFT		16
-#define PALETTE_8_GREEN_SHIFT		8
-#define PALETTE_8_BLUE_SHIFT		0
-
-/* CRTC registers */
-#define HTOTAL_A		0x60000
-#define HBLANK_A		0x60004
-#define HSYNC_A			0x60008
-#define VTOTAL_A		0x6000c
-#define VBLANK_A		0x60010
-#define VSYNC_A			0x60014
-#define SRC_SIZE_A		0x6001c
-#define BCLRPAT_A		0x60020
-
-#define HTOTAL_B		0x61000
-#define HBLANK_B		0x61004
-#define HSYNC_B			0x61008
-#define VTOTAL_B		0x6100c
-#define VBLANK_B		0x61010
-#define VSYNC_B			0x61014
-#define SRC_SIZE_B		0x6101c
-#define BCLRPAT_B		0x61020
-
-#define HTOTAL_MASK			0xfff
-#define HTOTAL_SHIFT			16
-#define HACTIVE_MASK			0x7ff
-#define HACTIVE_SHIFT			0
-#define HBLANKEND_MASK			0xfff
-#define HBLANKEND_SHIFT			16
-#define HBLANKSTART_MASK		0xfff
-#define HBLANKSTART_SHIFT		0
-#define HSYNCEND_MASK			0xfff
-#define HSYNCEND_SHIFT			16
-#define HSYNCSTART_MASK			0xfff
-#define HSYNCSTART_SHIFT		0
-#define VTOTAL_MASK			0xfff
-#define VTOTAL_SHIFT			16
-#define VACTIVE_MASK			0x7ff
-#define VACTIVE_SHIFT			0
-#define VBLANKEND_MASK			0xfff
-#define VBLANKEND_SHIFT			16
-#define VBLANKSTART_MASK		0xfff
-#define VBLANKSTART_SHIFT		0
-#define VSYNCEND_MASK			0xfff
-#define VSYNCEND_SHIFT			16
-#define VSYNCSTART_MASK			0xfff
-#define VSYNCSTART_SHIFT		0
-#define SRC_SIZE_HORIZ_MASK		0x7ff
-#define SRC_SIZE_HORIZ_SHIFT		16
-#define SRC_SIZE_VERT_MASK		0x7ff
-#define SRC_SIZE_VERT_SHIFT		0
-
-#define ADPA			0x61100
-#define ADPA_DAC_ENABLE			(1 << 31)
-#define ADPA_DAC_DISABLE		0
-#define ADPA_PIPE_SELECT_SHIFT		30
-#define ADPA_USE_VGA_HVPOLARITY		(1 << 15)
-#define ADPA_SETS_HVPOLARITY		0
-#define ADPA_DPMS_CONTROL_MASK		(0x3 << 10)
-#define ADPA_DPMS_D0			(0x0 << 10)
-#define ADPA_DPMS_D2			(0x1 << 10)
-#define ADPA_DPMS_D1			(0x2 << 10)
-#define ADPA_DPMS_D3			(0x3 << 10)
-#define ADPA_VSYNC_ACTIVE_SHIFT		4
-#define ADPA_HSYNC_ACTIVE_SHIFT		3
-#define ADPA_SYNC_ACTIVE_MASK		1
-#define ADPA_SYNC_ACTIVE_HIGH		1
-#define ADPA_SYNC_ACTIVE_LOW		0
-
-#define DVOA			0x61120
-#define DVOB			0x61140
-#define DVOC			0x61160
-#define LVDS			0x61180
-#define PORT_ENABLE		        (1 << 31)
-#define PORT_PIPE_SELECT_SHIFT	        30
-#define PORT_TV_FLAGS_MASK              0xFF
-#define PORT_TV_FLAGS                   0xC4	/* ripped from my BIOS
-						   to understand and correct */
-
-#define DVOA_SRCDIM		0x61124
-#define DVOB_SRCDIM		0x61144
-#define DVOC_SRCDIM		0x61164
-
-#define PIPEA_DSL		0x70000
-#define PIPEB_DSL		0x71000
-#define PIPEACONF		0x70008
-#define PIPEBCONF		0x71008
-#define PIPEASTAT		0x70024 /* bits 0-15 are "write 1 to clear" */
-#define PIPEBSTAT		0x71024
-
-#define PIPECONF_ENABLE			(1 << 31)
-#define PIPECONF_DISABLE		0
-#define PIPECONF_DOUBLE_WIDE		(1 << 30)
-#define PIPECONF_SINGLE_WIDE		0
-#define PIPECONF_LOCKED			(1 << 25)
-#define PIPECONF_UNLOCKED		0
-#define PIPECONF_GAMMA			(1 << 24)
-#define PIPECONF_PALETTE		0
-#define PIPECONF_PROGRESSIVE			(0 << 21)
-#define PIPECONF_INTERLACE_W_FIELD_INDICATION	(6 << 21)
-#define PIPECONF_INTERLACE_FIELD_0_ONLY		(7 << 21)
-#define PIPECONF_INTERLACE_MASK			(7 << 21)
-
-/* enable bits, write 1 to enable */
-#define PIPESTAT_FIFO_UNDERRUN		(1 << 31)
-#define PIPESTAT_CRC_ERROR_EN		(1 << 29)
-#define PIPESTAT_CRC_DONE_EN		(1 << 28)
-#define PIPESTAT_HOTPLUG_EN		(1 << 26)
-#define PIPESTAT_VERTICAL_SYNC_EN	(1 << 25)
-#define PIPESTAT_DISPLINE_COMP_EN	(1 << 24)
-#define PIPESTAT_FLD_EVT_ODD_EN		(1 << 21)
-#define PIPESTAT_FLD_EVT_EVEN_EN	(1 << 20)
-#define PIPESTAT_TV_HOTPLUG_EN		(1 << 18)
-#define PIPESTAT_VBLANK_EN		(1 << 17)
-#define PIPESTAT_OVL_UPDATE_EN		(1 << 16)
-/* status bits, write 1 to clear */
-#define PIPESTAT_HOTPLUG_STATE		(1 << 15)
-#define PIPESTAT_CRC_ERROR		(1 << 13)
-#define PIPESTAT_CRC_DONE		(1 << 12)
-#define PIPESTAT_HOTPLUG		(1 << 10)
-#define PIPESTAT_VSYNC			(1 << 9)
-#define PIPESTAT_DISPLINE_COMP		(1 << 8)
-#define PIPESTAT_FLD_EVT_ODD		(1 << 5)
-#define PIPESTAT_FLD_EVT_EVEN		(1 << 4)
-#define PIPESTAT_TV_HOTPLUG		(1 << 2)
-#define PIPESTAT_VBLANK			(1 << 1)
-#define PIPESTAT_OVL_UPDATE		(1 << 0)
-
-#define DISPARB			0x70030
-#define DISPARB_AEND_MASK		0x1ff
-#define DISPARB_AEND_SHIFT		0
-#define DISPARB_BEND_MASK		0x3ff
-#define DISPARB_BEND_SHIFT		9
-
-/* Desktop HW cursor */
-#define CURSOR_CONTROL		0x70080
-#define CURSOR_ENABLE			(1 << 31)
-#define CURSOR_GAMMA_ENABLE		(1 << 30)
-#define CURSOR_STRIDE_MASK		(0x3 << 28)
-#define CURSOR_STRIDE_256		(0x0 << 28)
-#define CURSOR_STRIDE_512		(0x1 << 28)
-#define CURSOR_STRIDE_1K		(0x2 << 28)
-#define CURSOR_STRIDE_2K		(0x3 << 28)
-#define CURSOR_FORMAT_MASK		(0x7 << 24)
-#define CURSOR_FORMAT_2C		(0x0 << 24)
-#define CURSOR_FORMAT_3C		(0x1 << 24)
-#define CURSOR_FORMAT_4C		(0x2 << 24)
-#define CURSOR_FORMAT_ARGB		(0x4 << 24)
-#define CURSOR_FORMAT_XRGB		(0x5 << 24)
-
-/* Mobile HW cursor (and i810) */
-#define CURSOR_A_CONTROL	CURSOR_CONTROL
-#define CURSOR_B_CONTROL	0x700c0
-#define CURSOR_MODE_MASK		0x27
-#define CURSOR_MODE_DISABLE		0
-#define CURSOR_MODE_64_3C		0x04
-#define CURSOR_MODE_64_4C_AX		0x05
-#define CURSOR_MODE_64_4C		0x06
-#define CURSOR_MODE_64_32B_AX		0x07
-#define CURSOR_MODE_64_ARGB_AX		0x27
-#define CURSOR_PIPE_SELECT_SHIFT	28
-#define CURSOR_MOBILE_GAMMA_ENABLE	(1 << 26)
-#define CURSOR_MEM_TYPE_LOCAL		(1 << 25)
-
-/* All platforms (desktop has no pipe B) */
-#define CURSOR_A_BASEADDR	0x70084
-#define CURSOR_B_BASEADDR	0x700c4
-#define CURSOR_BASE_MASK		0xffffff00
-
-#define CURSOR_A_POSITION	0x70088
-#define CURSOR_B_POSITION	0x700c8
-#define CURSOR_POS_SIGN			(1 << 15)
-#define CURSOR_POS_MASK			0x7ff
-#define CURSOR_X_SHIFT			0
-#define CURSOR_Y_SHIFT			16
-
-#define CURSOR_A_PALETTE0	0x70090
-#define CURSOR_A_PALETTE1	0x70094
-#define CURSOR_A_PALETTE2	0x70098
-#define CURSOR_A_PALETTE3	0x7009c
-#define CURSOR_B_PALETTE0	0x700d0
-#define CURSOR_B_PALETTE1	0x700d4
-#define CURSOR_B_PALETTE2	0x700d8
-#define CURSOR_B_PALETTE3	0x700dc
-#define CURSOR_COLOR_MASK			0xff
-#define CURSOR_RED_SHIFT			16
-#define CURSOR_GREEN_SHIFT			8
-#define CURSOR_BLUE_SHIFT			0
-#define CURSOR_PALETTE_MASK			0xffffff
-
-/* Desktop only */
-#define CURSOR_SIZE		0x700a0
-#define CURSOR_SIZE_MASK		0x3ff
-#define CURSOR_SIZE_H_SHIFT		0
-#define CURSOR_SIZE_V_SHIFT		12
-
-#define DSPACNTR		0x70180
-#define DSPBCNTR		0x71180
-#define DISPPLANE_PLANE_ENABLE		(1 << 31)
-#define DISPPLANE_PLANE_DISABLE		0
-#define DISPPLANE_GAMMA_ENABLE		(1<<30)
-#define DISPPLANE_GAMMA_DISABLE		0
-#define DISPPLANE_PIXFORMAT_MASK	(0xf<<26)
-#define DISPPLANE_8BPP			(0x2<<26)
-#define DISPPLANE_15_16BPP		(0x4<<26)
-#define DISPPLANE_16BPP			(0x5<<26)
-#define DISPPLANE_32BPP_NO_ALPHA	(0x6<<26)
-#define DISPPLANE_32BPP			(0x7<<26)
-#define DISPPLANE_STEREO_ENABLE		(1<<25)
-#define DISPPLANE_STEREO_DISABLE	0
-#define DISPPLANE_SEL_PIPE_SHIFT	24
-#define DISPPLANE_SRC_KEY_ENABLE	(1<<22)
-#define DISPPLANE_SRC_KEY_DISABLE	0
-#define DISPPLANE_LINE_DOUBLE		(1<<20)
-#define DISPPLANE_NO_LINE_DOUBLE	0
-#define DISPPLANE_STEREO_POLARITY_FIRST	0
-#define DISPPLANE_STEREO_POLARITY_SECOND (1<<18)
-/* plane B only */
-#define DISPPLANE_ALPHA_TRANS_ENABLE	(1<<15)
-#define DISPPLANE_ALPHA_TRANS_DISABLE	0
-#define DISPPLANE_SPRITE_ABOVE_DISPLAYA	0
-#define DISPPLANE_SPRITE_ABOVE_OVERLAY	1
-
-#define DSPABASE		0x70184
-#define DSPASTRIDE		0x70188
-
-#define DSPBBASE		0x71184
-#define DSPBSTRIDE		0x71188
-
-#define VGACNTRL		0x71400
-#define VGA_DISABLE			(1 << 31)
-#define VGA_ENABLE			0
-#define VGA_PIPE_SELECT_SHIFT		29
-#define VGA_PALETTE_READ_SELECT		23
-#define VGA_PALETTE_A_WRITE_DISABLE	(1 << 22)
-#define VGA_PALETTE_B_WRITE_DISABLE	(1 << 21)
-#define VGA_LEGACY_PALETTE		(1 << 20)
-#define VGA_6BIT_DAC			0
-#define VGA_8BIT_DAC			(1 << 20)
-
-#define ADD_ID			0x71408
-#define ADD_ID_MASK			0xff
-
-/* BIOS scratch area registers (830M and 845G). */
-#define SWF0			0x71410
-#define SWF1			0x71414
-#define SWF2			0x71418
-#define SWF3			0x7141c
-#define SWF4			0x71420
-#define SWF5			0x71424
-#define SWF6			0x71428
-
-/* BIOS scratch area registers (852GM, 855GM, 865G). */
-#define SWF00			0x70410
-#define SWF01			0x70414
-#define SWF02			0x70418
-#define SWF03			0x7041c
-#define SWF04			0x70420
-#define SWF05			0x70424
-#define SWF06			0x70428
-
-#define SWF10			SWF0
-#define SWF11			SWF1
-#define SWF12			SWF2
-#define SWF13			SWF3
-#define SWF14			SWF4
-#define SWF15			SWF5
-#define SWF16			SWF6
-
-#define SWF30			0x72414
-#define SWF31			0x72418
-#define SWF32			0x7241c
-
-/* Memory Commands */
-#define MI_NOOP			(0x00 << 23)
-#define MI_NOOP_WRITE_ID		(1 << 22)
-#define MI_NOOP_ID_MASK			((1 << 22) - 1)
-
-#define MI_FLUSH		(0x04 << 23)
-#define MI_WRITE_DIRTY_STATE		(1 << 4)
-#define MI_END_SCENE			(1 << 3)
-#define MI_INHIBIT_RENDER_CACHE_FLUSH	(1 << 2)
-#define MI_INVALIDATE_MAP_CACHE		(1 << 0)
-
-#define MI_STORE_DWORD_IMM	((0x20 << 23) | 1)
-
-/* 2D Commands */
-#define COLOR_BLT_CMD		((2 << 29) | (0x40 << 22) | 3)
-#define XY_COLOR_BLT_CMD	((2 << 29) | (0x50 << 22) | 4)
-#define XY_SETUP_CLIP_BLT_CMD	((2 << 29) | (0x03 << 22) | 1)
-#define XY_SRC_COPY_BLT_CMD	((2 << 29) | (0x53 << 22) | 6)
-#define SRC_COPY_BLT_CMD	((2 << 29) | (0x43 << 22) | 4)
-#define XY_MONO_PAT_BLT_CMD	((2 << 29) | (0x52 << 22) | 7)
-#define XY_MONO_SRC_BLT_CMD	((2 << 29) | (0x54 << 22) | 6)
-#define XY_MONO_SRC_IMM_BLT_CMD	((2 << 29) | (0x71 << 22) | 5)
-#define TXT_IMM_BLT_CMD	        ((2 << 29) | (0x30 << 22) | 2)
-#define SETUP_BLT_CMD	        ((2 << 29) | (0x00 << 22) | 6)
-
-#define DW_LENGTH_MASK			0xff
-
-#define WRITE_ALPHA			(1 << 21)
-#define WRITE_RGB			(1 << 20)
-#define VERT_SEED			(3 << 8)
-#define HORIZ_SEED			(3 << 12)
-
-#define COLOR_DEPTH_8			(0 << 24)
-#define COLOR_DEPTH_16			(1 << 24)
-#define COLOR_DEPTH_32			(3 << 24)
-
-#define SRC_ROP_GXCOPY			0xcc
-#define SRC_ROP_GXXOR			0x66
-
-#define PAT_ROP_GXCOPY                  0xf0
-#define PAT_ROP_GXXOR                   0x5a
-
-#define PITCH_SHIFT			0
-#define ROP_SHIFT			16
-#define WIDTH_SHIFT			0
-#define HEIGHT_SHIFT			16
-
-/* in bytes */
-#define MAX_MONO_IMM_SIZE		128
-
-
-/*** Macros ***/
-
-/* I/O macros */
-#define INREG8(addr)	      readb((u8 __iomem *)(dinfo->mmio_base + (addr)))
-#define INREG16(addr)	      readw((u16 __iomem *)(dinfo->mmio_base + (addr)))
-#define INREG(addr)	      readl((u32 __iomem *)(dinfo->mmio_base + (addr)))
-#define OUTREG8(addr, val)    writeb((val),(u8 __iomem *)(dinfo->mmio_base + \
-							   (addr)))
-#define OUTREG16(addr, val)    writew((val),(u16 __iomem *)(dinfo->mmio_base + \
-							   (addr)))
-#define OUTREG(addr, val)     writel((val),(u32 __iomem *)(dinfo->mmio_base + \
-                                     (addr)))
-
-/* Ring buffer macros */
-#define OUT_RING(n)	do {						\
-	writel((n), (u32 __iomem *)(dinfo->ring.virtual + dinfo->ring_tail));\
-	dinfo->ring_tail += 4;						\
-	dinfo->ring_tail &= dinfo->ring_tail_mask;			\
-} while (0)
-
-#define START_RING(n)	do {						\
-	if (dinfo->ring_space < (n) * 4)				\
-		wait_ring(dinfo,(n) * 4);				\
-	dinfo->ring_space -= (n) * 4;					\
-} while (0)
-
-#define ADVANCE_RING()	do {						\
-	OUTREG(PRI_RING_TAIL, dinfo->ring_tail);                        \
-} while (0)
-
-#define DO_RING_IDLE()	do {						\
-	u32 head, tail;							\
-	do {								\
-		head = INREG(PRI_RING_HEAD) & RING_HEAD_MASK;		\
-		tail = INREG(PRI_RING_TAIL) & RING_TAIL_MASK;		\
-		udelay(10);						\
-	} while (head != tail);						\
-} while (0)
-
-
-/* function protoypes */
-extern int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo);
-extern int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
-				int *stolen_size);
-extern int intelfbhw_check_non_crt(struct intelfb_info *dinfo);
-extern const char *intelfbhw_dvo_to_string(int dvo);
-extern int intelfbhw_validate_mode(struct intelfb_info *dinfo,
-				   struct fb_var_screeninfo *var);
-extern int intelfbhw_pan_display(struct fb_var_screeninfo *var,
-				 struct fb_info *info);
-extern void intelfbhw_do_blank(int blank, struct fb_info *info);
-extern void intelfbhw_setcolreg(struct intelfb_info *dinfo, unsigned regno,
-				unsigned red, unsigned green, unsigned blue,
-				unsigned transp);
-extern int intelfbhw_read_hw_state(struct intelfb_info *dinfo,
-				   struct intelfb_hwstate *hw, int flag);
-extern void intelfbhw_print_hw_state(struct intelfb_info *dinfo,
-				     struct intelfb_hwstate *hw);
-extern int intelfbhw_mode_to_hw(struct intelfb_info *dinfo,
-				struct intelfb_hwstate *hw,
-				struct fb_var_screeninfo *var);
-extern int intelfbhw_program_mode(struct intelfb_info *dinfo,
-				  const struct intelfb_hwstate *hw, int blank);
-extern void intelfbhw_do_sync(struct intelfb_info *dinfo);
-extern void intelfbhw_2d_stop(struct intelfb_info *dinfo);
-extern void intelfbhw_2d_start(struct intelfb_info *dinfo);
-extern void intelfbhw_do_fillrect(struct intelfb_info *dinfo, u32 x, u32 y,
-				  u32 w, u32 h, u32 color, u32 pitch, u32 bpp,
-				  u32 rop);
-extern void intelfbhw_do_bitblt(struct intelfb_info *dinfo, u32 curx, u32 cury,
-				u32 dstx, u32 dsty, u32 w, u32 h, u32 pitch,
-				u32 bpp);
-extern int intelfbhw_do_drawglyph(struct intelfb_info *dinfo, u32 fg, u32 bg,
-				  u32 w, u32 h, const u8* cdat, u32 x, u32 y,
-				  u32 pitch, u32 bpp);
-extern void intelfbhw_cursor_init(struct intelfb_info *dinfo);
-extern void intelfbhw_cursor_hide(struct intelfb_info *dinfo);
-extern void intelfbhw_cursor_show(struct intelfb_info *dinfo);
-extern void intelfbhw_cursor_setpos(struct intelfb_info *dinfo, int x, int y);
-extern void intelfbhw_cursor_setcolor(struct intelfb_info *dinfo, u32 bg,
-				      u32 fg);
-extern void intelfbhw_cursor_load(struct intelfb_info *dinfo, int width,
-				  int height, u8 *data);
-extern void intelfbhw_cursor_reset(struct intelfb_info *dinfo);
-extern int intelfbhw_enable_irq(struct intelfb_info *dinfo);
-extern void intelfbhw_disable_irq(struct intelfb_info *dinfo);
-extern int intelfbhw_wait_for_vsync(struct intelfb_info *dinfo, u32 pipe);
-extern int intelfbhw_active_pipe(const struct intelfb_hwstate *hw);
-
-#endif /* _INTELFBHW_H */