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tmp_suning_uos_patched/drivers/video/matrox/matroxfb_base.h
Paul A. Clarke e798bd95b6 matroxfb: rectify jitter (G450/G550) 
This builds upon my previous attempts to resolve some jitter problems seen
with the Matrox G450 and G550 -based cards, including odd disparities observed
between x86 and Power -based machines in a somewhat less hackish way (removing
the hacked ifdefs).

Apparently, preference should be given to use the DVI PLL when frequencies
permit, the Standard PLL otherwise.  The max pixel clock for the panellink
interface is extracted from the PInS information on the card and used as a
limit to determine which PLL to use.

Signed-off-by: Paul A. Clarke <pc@us.ibm.com>
Acked-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-11 15:47:40 -07:00

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/*
*
* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450
*
* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
*
*/
#ifndef __MATROXFB_H__
#define __MATROXFB_H__
/* general, but fairly heavy, debugging */
#undef MATROXFB_DEBUG
/* heavy debugging: */
/* -- logs putc[s], so everytime a char is displayed, it's logged */
#undef MATROXFB_DEBUG_HEAVY
/* This one _could_ cause infinite loops */
/* It _does_ cause lots and lots of messages during idle loops */
#undef MATROXFB_DEBUG_LOOP
/* Debug register calls, too? */
#undef MATROXFB_DEBUG_REG
/* Guard accelerator accesses with spin_lock_irqsave... */
#undef MATROXFB_USE_SPINLOCKS
#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/console.h>
#include <linux/selection.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/pci.h>
#include <linux/spinlock.h>
#include <linux/kd.h>
#include <asm/io.h>
#include <asm/unaligned.h>
#ifdef CONFIG_MTRR
#include <asm/mtrr.h>
#endif
#if defined(CONFIG_PPC_PMAC)
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#include "../macmodes.h"
#endif
/* always compile support for 32MB... It cost almost nothing */
#define CONFIG_FB_MATROX_32MB
#ifdef MATROXFB_DEBUG
#define DEBUG
#define DBG(x) printk(KERN_DEBUG "matroxfb: %s\n", (x));
#ifdef MATROXFB_DEBUG_HEAVY
#define DBG_HEAVY(x) DBG(x)
#else /* MATROXFB_DEBUG_HEAVY */
#define DBG_HEAVY(x) /* DBG_HEAVY */
#endif /* MATROXFB_DEBUG_HEAVY */
#ifdef MATROXFB_DEBUG_LOOP
#define DBG_LOOP(x) DBG(x)
#else /* MATROXFB_DEBUG_LOOP */
#define DBG_LOOP(x) /* DBG_LOOP */
#endif /* MATROXFB_DEBUG_LOOP */
#ifdef MATROXFB_DEBUG_REG
#define DBG_REG(x) DBG(x)
#else /* MATROXFB_DEBUG_REG */
#define DBG_REG(x) /* DBG_REG */
#endif /* MATROXFB_DEBUG_REG */
#else /* MATROXFB_DEBUG */
#define DBG(x) /* DBG */
#define DBG_HEAVY(x) /* DBG_HEAVY */
#define DBG_REG(x) /* DBG_REG */
#define DBG_LOOP(x) /* DBG_LOOP */
#endif /* MATROXFB_DEBUG */
#ifdef DEBUG
#define dprintk(X...) printk(X)
#else
#define dprintk(X...)
#endif
#ifndef PCI_SS_VENDOR_ID_SIEMENS_NIXDORF
#define PCI_SS_VENDOR_ID_SIEMENS_NIXDORF 0x110A
#endif
#ifndef PCI_SS_VENDOR_ID_MATROX
#define PCI_SS_VENDOR_ID_MATROX PCI_VENDOR_ID_MATROX
#endif
#ifndef PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP
#define PCI_SS_ID_MATROX_GENERIC 0xFF00
#define PCI_SS_ID_MATROX_PRODUCTIVA_G100_AGP 0xFF01
#define PCI_SS_ID_MATROX_MYSTIQUE_G200_AGP 0xFF02
#define PCI_SS_ID_MATROX_MILLENIUM_G200_AGP 0xFF03
#define PCI_SS_ID_MATROX_MARVEL_G200_AGP 0xFF04
#define PCI_SS_ID_MATROX_MGA_G100_PCI 0xFF05
#define PCI_SS_ID_MATROX_MGA_G100_AGP 0x1001
#define PCI_SS_ID_MATROX_MILLENNIUM_G400_MAX_AGP 0x2179
#define PCI_SS_ID_SIEMENS_MGA_G100_AGP 0x001E /* 30 */
#define PCI_SS_ID_SIEMENS_MGA_G200_AGP 0x0032 /* 50 */
#endif
#define MX_VISUAL_TRUECOLOR FB_VISUAL_DIRECTCOLOR
#define MX_VISUAL_DIRECTCOLOR FB_VISUAL_TRUECOLOR
#define MX_VISUAL_PSEUDOCOLOR FB_VISUAL_PSEUDOCOLOR
#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
/* G-series and Mystique have (almost) same DAC */
#undef NEED_DAC1064
#if defined(CONFIG_FB_MATROX_MYSTIQUE) || defined(CONFIG_FB_MATROX_G)
#define NEED_DAC1064 1
#endif
typedef struct {
void __iomem* vaddr;
} vaddr_t;
static inline unsigned int mga_readb(vaddr_t va, unsigned int offs) {
return readb(va.vaddr + offs);
}
static inline void mga_writeb(vaddr_t va, unsigned int offs, u_int8_t value) {
writeb(value, va.vaddr + offs);
}
static inline void mga_writew(vaddr_t va, unsigned int offs, u_int16_t value) {
writew(value, va.vaddr + offs);
}
static inline u_int32_t mga_readl(vaddr_t va, unsigned int offs) {
return readl(va.vaddr + offs);
}
static inline void mga_writel(vaddr_t va, unsigned int offs, u_int32_t value) {
writel(value, va.vaddr + offs);
}
static inline void mga_memcpy_toio(vaddr_t va, const void* src, int len) {
#if defined(__alpha__) || defined(__i386__) || defined(__x86_64__)
/*
* memcpy_toio works for us if:
* (1) Copies data as 32bit quantities, not byte after byte,
* (2) Performs LE ordered stores, and
* (3) It copes with unaligned source (destination is guaranteed to be page
* aligned and length is guaranteed to be multiple of 4).
*/
memcpy_toio(va.vaddr, src, len);
#else
u_int32_t __iomem* addr = va.vaddr;
if ((unsigned long)src & 3) {
while (len >= 4) {
fb_writel(get_unaligned((u32 *)src), addr);
addr++;
len -= 4;
src += 4;
}
} else {
while (len >= 4) {
fb_writel(*(u32 *)src, addr);
addr++;
len -= 4;
src += 4;
}
}
#endif
}
static inline void vaddr_add(vaddr_t* va, unsigned long offs) {
va->vaddr += offs;
}
static inline void __iomem* vaddr_va(vaddr_t va) {
return va.vaddr;
}
#define MGA_IOREMAP_NORMAL 0
#define MGA_IOREMAP_NOCACHE 1
#define MGA_IOREMAP_FB MGA_IOREMAP_NOCACHE
#define MGA_IOREMAP_MMIO MGA_IOREMAP_NOCACHE
static inline int mga_ioremap(unsigned long phys, unsigned long size, int flags, vaddr_t* virt) {
if (flags & MGA_IOREMAP_NOCACHE)
virt->vaddr = ioremap_nocache(phys, size);
else
virt->vaddr = ioremap(phys, size);
return (virt->vaddr == 0); /* 0, !0... 0, error_code in future */
}
static inline void mga_iounmap(vaddr_t va) {
iounmap(va.vaddr);
}
struct my_timming {
unsigned int pixclock;
int mnp;
unsigned int crtc;
unsigned int HDisplay;
unsigned int HSyncStart;
unsigned int HSyncEnd;
unsigned int HTotal;
unsigned int VDisplay;
unsigned int VSyncStart;
unsigned int VSyncEnd;
unsigned int VTotal;
unsigned int sync;
int dblscan;
int interlaced;
unsigned int delay; /* CRTC delay */
};
enum { M_SYSTEM_PLL, M_PIXEL_PLL_A, M_PIXEL_PLL_B, M_PIXEL_PLL_C, M_VIDEO_PLL };
struct matrox_pll_cache {
unsigned int valid;
struct {
unsigned int mnp_key;
unsigned int mnp_value;
} data[4];
};
struct matrox_pll_limits {
unsigned int vcomin;
unsigned int vcomax;
};
struct matrox_pll_features {
unsigned int vco_freq_min;
unsigned int ref_freq;
unsigned int feed_div_min;
unsigned int feed_div_max;
unsigned int in_div_min;
unsigned int in_div_max;
unsigned int post_shift_max;
};
struct matroxfb_par
{
unsigned int final_bppShift;
unsigned int cmap_len;
struct {
unsigned int bytes;
unsigned int pixels;
unsigned int chunks;
} ydstorg;
};
struct matrox_fb_info;
struct matrox_DAC1064_features {
u_int8_t xvrefctrl;
u_int8_t xmiscctrl;
};
/* current hardware status */
struct mavenregs {
u_int8_t regs[256];
int mode;
int vlines;
int xtal;
int fv;
u_int16_t htotal;
u_int16_t hcorr;
};
struct matrox_crtc2 {
u_int32_t ctl;
};
struct matrox_hw_state {
u_int32_t MXoptionReg;
unsigned char DACclk[6];
unsigned char DACreg[80];
unsigned char MiscOutReg;
unsigned char DACpal[768];
unsigned char CRTC[25];
unsigned char CRTCEXT[9];
unsigned char SEQ[5];
/* unused for MGA mode, but who knows... */
unsigned char GCTL[9];
/* unused for MGA mode, but who knows... */
unsigned char ATTR[21];
/* TVOut only */
struct mavenregs maven;
struct matrox_crtc2 crtc2;
};
struct matrox_accel_data {
#ifdef CONFIG_FB_MATROX_MILLENIUM
unsigned char ramdac_rev;
#endif
u_int32_t m_dwg_rect;
u_int32_t m_opmode;
};
struct v4l2_queryctrl;
struct v4l2_control;
struct matrox_altout {
const char *name;
int (*compute)(void* altout_dev, struct my_timming* input);
int (*program)(void* altout_dev);
int (*start)(void* altout_dev);
int (*verifymode)(void* altout_dev, u_int32_t mode);
int (*getqueryctrl)(void* altout_dev,
struct v4l2_queryctrl* ctrl);
int (*getctrl)(void* altout_dev,
struct v4l2_control* ctrl);
int (*setctrl)(void* altout_dev,
struct v4l2_control* ctrl);
};
#define MATROXFB_SRC_NONE 0
#define MATROXFB_SRC_CRTC1 1
#define MATROXFB_SRC_CRTC2 2
enum mga_chip { MGA_2064, MGA_2164, MGA_1064, MGA_1164, MGA_G100, MGA_G200, MGA_G400, MGA_G450, MGA_G550 };
struct matrox_bios {
unsigned int bios_valid : 1;
unsigned int pins_len;
unsigned char pins[128];
struct {
unsigned char vMaj, vMin, vRev;
} version;
struct {
unsigned char state, tvout;
} output;
};
struct matrox_switch;
struct matroxfb_driver;
struct matroxfb_dh_fb_info;
struct matrox_vsync {
wait_queue_head_t wait;
unsigned int cnt;
};
struct matrox_fb_info {
struct fb_info fbcon;
struct list_head next_fb;
int dead;
int initialized;
unsigned int usecount;
unsigned int userusecount;
unsigned long irq_flags;
struct matroxfb_par curr;
struct matrox_hw_state hw;
struct matrox_accel_data accel;
struct pci_dev* pcidev;
struct {
struct matrox_vsync vsync;
unsigned int pixclock;
int mnp;
int panpos;
} crtc1;
struct {
struct matrox_vsync vsync;
unsigned int pixclock;
int mnp;
struct matroxfb_dh_fb_info* info;
struct rw_semaphore lock;
} crtc2;
struct {
struct rw_semaphore lock;
struct {
int brightness, contrast, saturation, hue, gamma;
int testout, deflicker;
} tvo_params;
} altout;
#define MATROXFB_MAX_OUTPUTS 3
struct {
unsigned int src;
struct matrox_altout* output;
void* data;
unsigned int mode;
unsigned int default_src;
} outputs[MATROXFB_MAX_OUTPUTS];
#define MATROXFB_MAX_FB_DRIVERS 5
struct matroxfb_driver* (drivers[MATROXFB_MAX_FB_DRIVERS]);
void* (drivers_data[MATROXFB_MAX_FB_DRIVERS]);
unsigned int drivers_count;
struct {
unsigned long base; /* physical */
vaddr_t vbase; /* CPU view */
unsigned int len;
unsigned int len_usable;
unsigned int len_maximum;
} video;
struct {
unsigned long base; /* physical */
vaddr_t vbase; /* CPU view */
unsigned int len;
} mmio;
unsigned int max_pixel_clock;
unsigned int max_pixel_clock_panellink;
struct matrox_switch* hw_switch;
struct {
struct matrox_pll_features pll;
struct matrox_DAC1064_features DAC1064;
} features;
struct {
spinlock_t DAC;
spinlock_t accel;
} lock;
enum mga_chip chip;
int interleave;
int millenium;
int milleniumII;
struct {
int cfb4;
const int* vxres;
int cross4MB;
int text;
int plnwt;
int srcorg;
} capable;
#ifdef CONFIG_MTRR
struct {
int vram;
int vram_valid;
} mtrr;
#endif
struct {
int precise_width;
int mga_24bpp_fix;
int novga;
int nobios;
int nopciretry;
int noinit;
int sgram;
#ifdef CONFIG_FB_MATROX_32MB
int support32MB;
#endif
int accelerator;
int text_type_aux;
int video64bits;
int crtc2;
int maven_capable;
unsigned int vgastep;
unsigned int textmode;
unsigned int textstep;
unsigned int textvram; /* character cells */
unsigned int ydstorg; /* offset in bytes from video start to usable memory */
/* 0 except for 6MB Millenium */
int memtype;
int g450dac;
int dfp_type;
int panellink; /* G400 DFP possible (not G450/G550) */
int dualhead;
unsigned int fbResource;
} devflags;
struct fb_ops fbops;
struct matrox_bios bios;
struct {
struct matrox_pll_limits pixel;
struct matrox_pll_limits system;
struct matrox_pll_limits video;
} limits;
struct {
struct matrox_pll_cache pixel;
struct matrox_pll_cache system;
struct matrox_pll_cache video;
} cache;
struct {
struct {
unsigned int video;
unsigned int system;
} pll;
struct {
u_int32_t opt;
u_int32_t opt2;
u_int32_t opt3;
u_int32_t mctlwtst;
u_int32_t mctlwtst_core;
u_int32_t memmisc;
u_int32_t memrdbk;
u_int32_t maccess;
} reg;
struct {
unsigned int ddr:1,
emrswen:1,
dll:1;
} memory;
} values;
u_int32_t cmap[16];
};
#define info2minfo(info) container_of(info, struct matrox_fb_info, fbcon)
#ifdef CONFIG_FB_MATROX_MULTIHEAD
#define ACCESS_FBINFO2(info, x) (info->x)
#define ACCESS_FBINFO(x) ACCESS_FBINFO2(minfo,x)
#define MINFO minfo
#define WPMINFO2 struct matrox_fb_info* minfo
#define WPMINFO WPMINFO2 ,
#define CPMINFO2 const struct matrox_fb_info* minfo
#define CPMINFO CPMINFO2 ,
#define PMINFO2 minfo
#define PMINFO PMINFO2 ,
#define MINFO_FROM(x) struct matrox_fb_info* minfo = x
#else
extern struct matrox_fb_info matroxfb_global_mxinfo;
#define ACCESS_FBINFO(x) (matroxfb_global_mxinfo.x)
#define ACCESS_FBINFO2(info, x) (matroxfb_global_mxinfo.x)
#define MINFO (&matroxfb_global_mxinfo)
#define WPMINFO2 void
#define WPMINFO
#define CPMINFO2 void
#define CPMINFO
#define PMINFO2
#define PMINFO
#define MINFO_FROM(x)
#endif
#define MINFO_FROM_INFO(x) MINFO_FROM(info2minfo(x))
struct matrox_switch {
int (*preinit)(WPMINFO2);
void (*reset)(WPMINFO2);
int (*init)(WPMINFO struct my_timming*);
void (*restore)(WPMINFO2);
};
struct matroxfb_driver {
struct list_head node;
char* name;
void* (*probe)(struct matrox_fb_info* info);
void (*remove)(struct matrox_fb_info* info, void* data);
};
int matroxfb_register_driver(struct matroxfb_driver* drv);
void matroxfb_unregister_driver(struct matroxfb_driver* drv);
#define PCI_OPTION_REG 0x40
#define PCI_OPTION_ENABLE_ROM 0x40000000
#define PCI_MGA_INDEX 0x44
#define PCI_MGA_DATA 0x48
#define PCI_OPTION2_REG 0x50
#define PCI_OPTION3_REG 0x54
#define PCI_MEMMISC_REG 0x58
#define M_DWGCTL 0x1C00
#define M_MACCESS 0x1C04
#define M_CTLWTST 0x1C08
#define M_PLNWT 0x1C1C
#define M_BCOL 0x1C20
#define M_FCOL 0x1C24
#define M_SGN 0x1C58
#define M_LEN 0x1C5C
#define M_AR0 0x1C60
#define M_AR1 0x1C64
#define M_AR2 0x1C68
#define M_AR3 0x1C6C
#define M_AR4 0x1C70
#define M_AR5 0x1C74
#define M_AR6 0x1C78
#define M_CXBNDRY 0x1C80
#define M_FXBNDRY 0x1C84
#define M_YDSTLEN 0x1C88
#define M_PITCH 0x1C8C
#define M_YDST 0x1C90
#define M_YDSTORG 0x1C94
#define M_YTOP 0x1C98
#define M_YBOT 0x1C9C
/* mystique only */
#define M_CACHEFLUSH 0x1FFF
#define M_EXEC 0x0100
#define M_DWG_TRAP 0x04
#define M_DWG_BITBLT 0x08
#define M_DWG_ILOAD 0x09
#define M_DWG_LINEAR 0x0080
#define M_DWG_SOLID 0x0800
#define M_DWG_ARZERO 0x1000
#define M_DWG_SGNZERO 0x2000
#define M_DWG_SHIFTZERO 0x4000
#define M_DWG_REPLACE 0x000C0000
#define M_DWG_REPLACE2 (M_DWG_REPLACE | 0x40)
#define M_DWG_XOR 0x00060010
#define M_DWG_BFCOL 0x04000000
#define M_DWG_BMONOWF 0x08000000
#define M_DWG_TRANSC 0x40000000
#define M_FIFOSTATUS 0x1E10
#define M_STATUS 0x1E14
#define M_ICLEAR 0x1E18
#define M_IEN 0x1E1C
#define M_VCOUNT 0x1E20
#define M_RESET 0x1E40
#define M_MEMRDBK 0x1E44
#define M_AGP2PLL 0x1E4C
#define M_OPMODE 0x1E54
#define M_OPMODE_DMA_GEN_WRITE 0x00
#define M_OPMODE_DMA_BLIT 0x04
#define M_OPMODE_DMA_VECTOR_WRITE 0x08
#define M_OPMODE_DMA_LE 0x0000 /* little endian - no transformation */
#define M_OPMODE_DMA_BE_8BPP 0x0000
#define M_OPMODE_DMA_BE_16BPP 0x0100
#define M_OPMODE_DMA_BE_32BPP 0x0200
#define M_OPMODE_DIR_LE 0x000000 /* little endian - no transformation */
#define M_OPMODE_DIR_BE_8BPP 0x000000
#define M_OPMODE_DIR_BE_16BPP 0x010000
#define M_OPMODE_DIR_BE_32BPP 0x020000
#define M_ATTR_INDEX 0x1FC0
#define M_ATTR_DATA 0x1FC1
#define M_MISC_REG 0x1FC2
#define M_3C2_RD 0x1FC2
#define M_SEQ_INDEX 0x1FC4
#define M_SEQ_DATA 0x1FC5
#define M_SEQ1 0x01
#define M_SEQ1_SCROFF 0x20
#define M_MISC_REG_READ 0x1FCC
#define M_GRAPHICS_INDEX 0x1FCE
#define M_GRAPHICS_DATA 0x1FCF
#define M_CRTC_INDEX 0x1FD4
#define M_ATTR_RESET 0x1FDA
#define M_3DA_WR 0x1FDA
#define M_INSTS1 0x1FDA
#define M_EXTVGA_INDEX 0x1FDE
#define M_EXTVGA_DATA 0x1FDF
/* G200 only */
#define M_SRCORG 0x2CB4
#define M_DSTORG 0x2CB8
#define M_RAMDAC_BASE 0x3C00
/* fortunately, same on TVP3026 and MGA1064 */
#define M_DAC_REG (M_RAMDAC_BASE+0)
#define M_DAC_VAL (M_RAMDAC_BASE+1)
#define M_PALETTE_MASK (M_RAMDAC_BASE+2)
#define M_X_INDEX 0x00
#define M_X_DATAREG 0x0A
#define DAC_XGENIOCTRL 0x2A
#define DAC_XGENIODATA 0x2B
#define M_C2CTL 0x3C10
#define MX_OPTION_BSWAP 0x00000000
#ifdef __LITTLE_ENDIAN
#define M_OPMODE_4BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
#define M_OPMODE_8BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
#define M_OPMODE_16BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
#define M_OPMODE_24BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
#define M_OPMODE_32BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT)
#else
#ifdef __BIG_ENDIAN
#define M_OPMODE_4BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_LE | M_OPMODE_DMA_BLIT) /* TODO */
#define M_OPMODE_8BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP | M_OPMODE_DMA_BLIT)
#define M_OPMODE_16BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_16BPP | M_OPMODE_DMA_BLIT)
#define M_OPMODE_24BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_8BPP | M_OPMODE_DMA_BLIT) /* TODO, ?32 */
#define M_OPMODE_32BPP (M_OPMODE_DMA_LE | M_OPMODE_DIR_BE_32BPP | M_OPMODE_DMA_BLIT)
#else
#error "Byte ordering have to be defined. Cannot continue."
#endif
#endif
#define mga_inb(addr) mga_readb(ACCESS_FBINFO(mmio.vbase), (addr))
#define mga_inl(addr) mga_readl(ACCESS_FBINFO(mmio.vbase), (addr))
#define mga_outb(addr,val) mga_writeb(ACCESS_FBINFO(mmio.vbase), (addr), (val))
#define mga_outw(addr,val) mga_writew(ACCESS_FBINFO(mmio.vbase), (addr), (val))
#define mga_outl(addr,val) mga_writel(ACCESS_FBINFO(mmio.vbase), (addr), (val))
#define mga_readr(port,idx) (mga_outb((port),(idx)), mga_inb((port)+1))
#define mga_setr(addr,port,val) mga_outw(addr, ((val)<<8) | (port))
#define mga_fifo(n) do {} while ((mga_inl(M_FIFOSTATUS) & 0xFF) < (n))
#define WaitTillIdle() do {} while (mga_inl(M_STATUS) & 0x10000)
/* code speedup */
#ifdef CONFIG_FB_MATROX_MILLENIUM
#define isInterleave(x) (x->interleave)
#define isMillenium(x) (x->millenium)
#define isMilleniumII(x) (x->milleniumII)
#else
#define isInterleave(x) (0)
#define isMillenium(x) (0)
#define isMilleniumII(x) (0)
#endif
#define matroxfb_DAC_lock() spin_lock(&ACCESS_FBINFO(lock.DAC))
#define matroxfb_DAC_unlock() spin_unlock(&ACCESS_FBINFO(lock.DAC))
#define matroxfb_DAC_lock_irqsave(flags) spin_lock_irqsave(&ACCESS_FBINFO(lock.DAC),flags)
#define matroxfb_DAC_unlock_irqrestore(flags) spin_unlock_irqrestore(&ACCESS_FBINFO(lock.DAC),flags)
extern void matroxfb_DAC_out(CPMINFO int reg, int val);
extern int matroxfb_DAC_in(CPMINFO int reg);
extern void matroxfb_var2my(struct fb_var_screeninfo* fvsi, struct my_timming* mt);
extern int matroxfb_wait_for_sync(WPMINFO u_int32_t crtc);
extern int matroxfb_enable_irq(WPMINFO int reenable);
#ifdef MATROXFB_USE_SPINLOCKS
#define CRITBEGIN spin_lock_irqsave(&ACCESS_FBINFO(lock.accel), critflags);
#define CRITEND spin_unlock_irqrestore(&ACCESS_FBINFO(lock.accel), critflags);
#define CRITFLAGS unsigned long critflags;
#else
#define CRITBEGIN
#define CRITEND
#define CRITFLAGS
#endif
#endif /* __MATROXFB_H__ */
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