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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | /*-*- linux-c -*- * linux/drivers/video/i810fb_main.h -- Intel 810 frame buffer device * main header file * * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> * All Rights Reserved * * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #ifndef __I810_MAIN_H__ #define __I810_MAIN_H__ static int __devinit i810fb_init_pci (struct pci_dev *dev, const struct pci_device_id *entry); static void __exit i810fb_remove_pci(struct pci_dev *dev); static int i810fb_resume(struct pci_dev *dev); static int i810fb_suspend(struct pci_dev *dev, pm_message_t state); /* * voffset - framebuffer offset in MiB from aperture start address. In order for * the driver to work with X, we must try to use memory holes left untouched by X. The * following table lists where X's different surfaces start at. * * --------------------------------------------- * : : 64 MiB : 32 MiB : * ---------------------------------------------- * : FrontBuffer : 0 : 0 : * : DepthBuffer : 48 : 16 : * : BackBuffer : 56 : 24 : * ---------------------------------------------- * * So for chipsets with 64 MiB Aperture sizes, 32 MiB for v_offset is okay, allowing up to * 15 + 1 MiB of Framebuffer memory. For 32 MiB Aperture sizes, a v_offset of 8 MiB should * work, allowing 7 + 1 MiB of Framebuffer memory. * Note, the size of the hole may change depending on how much memory you allocate to X, * and how the memory is split up between these surfaces. * * Note: Anytime the DepthBuffer or FrontBuffer is overlapped, X would still run but with * DRI disabled. But if the Frontbuffer is overlapped, X will fail to load. * * Experiment with v_offset to find out which works best for you. */ static u32 v_offset_default __initdata; /* For 32 MiB Aper size, 8 should be the default */ static u32 voffset __initdata = 0; static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor); /* Chipset Specific Functions */ static int i810fb_set_par (struct fb_info *info); static int i810fb_getcolreg (u8 regno, u8 *red, u8 *green, u8 *blue, u8 *transp, struct fb_info *info); static int i810fb_setcolreg (unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info); static int i810fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info); static int i810fb_blank (int blank_mode, struct fb_info *info); /* Initialization */ static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par); extern int __init agp_intel_init(void); /* Video Timings */ extern void round_off_xres (u32 *xres); extern void round_off_yres (u32 *xres, u32 *yres); extern u32 i810_get_watermark (const struct fb_var_screeninfo *var, struct i810fb_par *par); extern void i810fb_encode_registers(const struct fb_var_screeninfo *var, struct i810fb_par *par, u32 xres, u32 yres); extern void i810fb_fill_var_timings(struct fb_var_screeninfo *var); /* Accelerated Functions */ extern void i810fb_fillrect (struct fb_info *p, const struct fb_fillrect *rect); extern void i810fb_copyarea (struct fb_info *p, const struct fb_copyarea *region); extern void i810fb_imageblit(struct fb_info *p, const struct fb_image *image); extern int i810fb_sync (struct fb_info *p); extern void i810fb_init_ringbuffer(struct fb_info *info); extern void i810fb_load_front (u32 offset, struct fb_info *info); /* Conditionals */ #ifdef CONFIG_X86 inline void flush_cache(void) { asm volatile ("wbinvd":::"memory"); } #else #define flush_cache() do { } while(0) #endif #ifdef CONFIG_MTRR #define KERNEL_HAS_MTRR 1 static inline void __devinit set_mtrr(struct i810fb_par *par) { par->mtrr_reg = mtrr_add((u32) par->aperture.physical, par->aperture.size, MTRR_TYPE_WRCOMB, 1); if (par->mtrr_reg < 0) { printk(KERN_ERR "set_mtrr: unable to set MTRR\n"); return; } par->dev_flags |= HAS_MTRR; } static inline void unset_mtrr(struct i810fb_par *par) { if (par->dev_flags & HAS_MTRR) mtrr_del(par->mtrr_reg, (u32) par->aperture.physical, par->aperture.size); } #else #define KERNEL_HAS_MTRR 0 #define set_mtrr(x) printk("set_mtrr: MTRR is disabled in the kernel\n") #define unset_mtrr(x) do { } while (0) #endif /* CONFIG_MTRR */ #ifdef CONFIG_FB_I810_GTF #define IS_DVT (0) #else #define IS_DVT (1) #endif #endif /* __I810_MAIN_H__ */ |