/* * intelfb * * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/ * 945G/945GM integrated graphics chips. * * Copyright © 2002, 2003 David Dawes * 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 * * TODO: * * * Wish List: * * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_MTRR #include #endif #include "intelfb.h" #include "intelfbhw.h" static void __devinit get_initial_mode(struct intelfb_info *dinfo); static void update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var); 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 __devinit intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent); static void __devexit intelfb_pci_unregister(struct pci_dev *pdev); static int __devinit 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 struct pci_device_id intelfb_pci_table[] __devinitdata = { { 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_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 }, { 0, } }; /* Global data */ static int num_registered = 0; /* fb ops */ static struct fb_ops intel_fb_ops = { .owner = THIS_MODULE, .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 }; /* PCI driver module table */ static struct pci_driver intelfb_driver = { .name = "intelfb", .id_table = intelfb_pci_table, .probe = intelfb_pci_register, .remove = __devexit_p(intelfb_pci_unregister) }; /* Module description/parameters */ MODULE_AUTHOR("David Dawes , " "Sylvain Meyer "); MODULE_DESCRIPTION( "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_DEVICE_TABLE(pci, intelfb_pci_table); static int accel = 1; static int vram = 4; static int hwcursor = 0; static int mtrr = 1; static int fixed = 0; static int noinit = 0; static int noregister = 0; static int probeonly = 0; static int 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, bool, 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 \"x[-][@]\""); #ifndef MODULE #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name), 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, int *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][,=] ... * * 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; #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); /*************************************************************** * mtrr support functions * ***************************************************************/ #ifdef CONFIG_MTRR static inline void __devinit set_mtrr(struct intelfb_info *dinfo) { dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical, dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1); if (dinfo->mtrr_reg < 0) { ERR_MSG("unable to set MTRR\n"); return; } dinfo->has_mtrr = 1; } static inline void unset_mtrr(struct intelfb_info *dinfo) { if (dinfo->has_mtrr) mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical, dinfo->aperture.size); } #else #define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n") #define unset_mtrr(x) do { } while (0) #endif /* CONFIG_MTRR */ /*************************************************************** * driver init / cleanup * ***************************************************************/ static void cleanup(struct intelfb_info *dinfo) { DBG_MSG("cleanup\n"); if (!dinfo) return; fb_dealloc_cmap(&dinfo->info->cmap); kfree(dinfo->info->pixmap.addr); if (dinfo->registered) unregister_framebuffer(dinfo->info); unset_mtrr(dinfo); 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); } 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 __devinit 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; 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"); 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) { ERR_MSG("Could not allocate memory for intelfb_info.\n"); return -ENODEV; } if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { ERR_MSG("Could not allocate cmap for intelfb_info.\n"); goto err_out_cmap; return -ENODEV; } dinfo = info->par; dinfo->info = info; dinfo->fbops = &intel_fb_ops; dinfo->pdev = pdev; /* Reserve pixmap space. */ info->pixmap.addr = kmalloc(64 * 1024, GFP_KERNEL); if (info->pixmap.addr == NULL) { ERR_MSG("Cannot reserve pixmap memory.\n"); goto err_out_pixmap; } memset(info->pixmap.addr, 0, 64 * 1024); /* 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)) { 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, >t_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_nocache (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) + dinfo->fb.size); if (!dinfo->aperture.virtual) { ERR_MSG("Cannot remap FB region.\n"); cleanup(dinfo); return -ENODEV; } dinfo->mmio_base = (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys, INTEL_REG_SIZE); if (!dinfo->mmio_base) { ERR_MSG("Cannot remap MMIO region.\n"); 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 = dinfo->ring.virtual; } 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) set_mtrr(dinfo); DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%x)\n", dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, (u32 __iomem ) dinfo->fb.virtual); DBG_MSG("MMIO: 0x%x/0x%x (0x%x)\n", dinfo->mmio_base_phys, INTEL_REG_SIZE, (u32 __iomem) dinfo->mmio_base); DBG_MSG("ring buffer: 0x%x/0x%x (0x%x)\n", dinfo->ring.physical, dinfo->ring.size, (u32 __iomem ) dinfo->ring.virtual); DBG_MSG("HW cursor: 0x%x/0x%x (0x%x) (offset 0x%x) (phys 0x%x)\n", dinfo->cursor.physical, dinfo->cursor.size, (u32 __iomem ) 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) && 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 (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); 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); /* 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; return 0; err_out_pixmap: fb_dealloc_cmap(&info->cmap); err_out_cmap: framebuffer_release(info); return -ENODEV; } static void __devexit 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); pci_set_drvdata(pdev, NULL); } /*************************************************************** * helper functions * ***************************************************************/ int __inline__ 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 intialisation functions * ***************************************************************/ static void __devinit 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 __devinit 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 { if (mode) { msrc = fb_find_mode(var, dinfo->info, mode, vesa_modes, VESA_MODEDB_SIZE, NULL, 0); if (msrc) msrc |= 8; } if (!msrc) { msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, vesa_modes, VESA_MODEDB_SIZE, 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 __devinit intelfb_set_fbinfo(struct intelfb_info *dinfo) { struct fb_info *info = dinfo->info; DBG_MSG("intelfb_set_fbinfo\n"); info->flags = FBINFO_FLAG_DEFAULT; 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. */ 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_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); /* 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 < 0) v.xoffset = 0; if (v.yoffset < 0) v.yoffset = 0; 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); 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_DEFAULT | FBINFO_HWACCEL_YPAN | FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT; } else { info->flags = FBINFO_DEFAULT | 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; 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) return cfb_fillrect(info, rect); 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) return cfb_copyarea(info, region); 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) return cfb_imageblit(info, image); 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)) return cfb_imageblit(info, image); } 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; }