diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 09:12:17 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-04 09:12:17 -0700 |
commit | 228abe73ad67665d71eacd6a8a347dd76b0115ae (patch) | |
tree | dfa4e0d394aab9b54ed1662eb611ea8e1904ac58 | |
parent | 1f9c52e16b5f67131440ddd51bd0cff27e45ea10 (diff) | |
parent | 765d5b9c2b72f5b99722cdfcf4bf8f88c556cf92 (diff) |
Merge branch 'x86-fb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fb changes from Ingo Molnar:
"This tree includes preparatory patches for SimpleDRM driver support,
by David Herrmann. They clean up x86 framebuffer support by creating
simplefb devices wherever possible. More background can be found at
http://lwn.net/Articles/558104/"
* 'x86-fb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
fbdev: fbcon: select VT_HW_CONSOLE_BINDING
fbdev: efifb: bind to efi-framebuffer
fbdev: vesafb: bind to platform-framebuffer device
fbdev: simplefb: add common x86 RGB formats
x86: sysfb: move EFI quirks from efifb to sysfb
x86: provide platform-devices for boot-framebuffers
fbdev: simplefb: mark as fw and allocate apertures
fbdev: simplefb: add init through platform_data
-rw-r--r-- | arch/x86/Kconfig | 26 | ||||
-rw-r--r-- | arch/x86/include/asm/sysfb.h | 98 | ||||
-rw-r--r-- | arch/x86/kernel/Makefile | 3 | ||||
-rw-r--r-- | arch/x86/kernel/sysfb.c | 74 | ||||
-rw-r--r-- | arch/x86/kernel/sysfb_efi.c | 214 | ||||
-rw-r--r-- | arch/x86/kernel/sysfb_simplefb.c | 95 | ||||
-rw-r--r-- | drivers/video/Kconfig | 5 | ||||
-rw-r--r-- | drivers/video/console/Kconfig | 3 | ||||
-rw-r--r-- | drivers/video/efifb.c | 302 | ||||
-rw-r--r-- | drivers/video/simplefb.c | 58 | ||||
-rw-r--r-- | drivers/video/vesafb.c | 55 | ||||
-rw-r--r-- | include/linux/platform_data/simplefb.h | 63 |
12 files changed, 666 insertions, 330 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f16fc34e6608..ff47e230d355 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -2270,6 +2270,32 @@ config RAPIDIO source "drivers/rapidio/Kconfig" +config X86_SYSFB + bool "Mark VGA/VBE/EFI FB as generic system framebuffer" + help + Firmwares often provide initial graphics framebuffers so the BIOS, + bootloader or kernel can show basic video-output during boot for + user-guidance and debugging. Historically, x86 used the VESA BIOS + Extensions and EFI-framebuffers for this, which are mostly limited + to x86. + This option, if enabled, marks VGA/VBE/EFI framebuffers as generic + framebuffers so the new generic system-framebuffer drivers can be + used on x86. If the framebuffer is not compatible with the generic + modes, it is adverticed as fallback platform framebuffer so legacy + drivers like efifb, vesafb and uvesafb can pick it up. + If this option is not selected, all system framebuffers are always + marked as fallback platform framebuffers as usual. + + Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will + not be able to pick up generic system framebuffers if this option + is selected. You are highly encouraged to enable simplefb as + replacement if you select this option. simplefb can correctly deal + with generic system framebuffers. But you should still keep vesafb + and others enabled as fallback if a system framebuffer is + incompatible with simplefb. + + If unsure, say Y. + endmenu diff --git a/arch/x86/include/asm/sysfb.h b/arch/x86/include/asm/sysfb.h new file mode 100644 index 000000000000..2aeb3e25579c --- /dev/null +++ b/arch/x86/include/asm/sysfb.h @@ -0,0 +1,98 @@ +#ifndef _ARCH_X86_KERNEL_SYSFB_H +#define _ARCH_X86_KERNEL_SYSFB_H + +/* + * Generic System Framebuffers on x86 + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include <linux/kernel.h> +#include <linux/platform_data/simplefb.h> +#include <linux/screen_info.h> + +enum { + M_I17, /* 17-Inch iMac */ + M_I20, /* 20-Inch iMac */ + M_I20_SR, /* 20-Inch iMac (Santa Rosa) */ + M_I24, /* 24-Inch iMac */ + M_I24_8_1, /* 24-Inch iMac, 8,1th gen */ + M_I24_10_1, /* 24-Inch iMac, 10,1th gen */ + M_I27_11_1, /* 27-Inch iMac, 11,1th gen */ + M_MINI, /* Mac Mini */ + M_MINI_3_1, /* Mac Mini, 3,1th gen */ + M_MINI_4_1, /* Mac Mini, 4,1th gen */ + M_MB, /* MacBook */ + M_MB_2, /* MacBook, 2nd rev. */ + M_MB_3, /* MacBook, 3rd rev. */ + M_MB_5_1, /* MacBook, 5th rev. */ + M_MB_6_1, /* MacBook, 6th rev. */ + M_MB_7_1, /* MacBook, 7th rev. */ + M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */ + M_MBA, /* MacBook Air */ + M_MBA_3, /* Macbook Air, 3rd rev */ + M_MBP, /* MacBook Pro */ + M_MBP_2, /* MacBook Pro 2nd gen */ + M_MBP_2_2, /* MacBook Pro 2,2nd gen */ + M_MBP_SR, /* MacBook Pro (Santa Rosa) */ + M_MBP_4, /* MacBook Pro, 4th gen */ + M_MBP_5_1, /* MacBook Pro, 5,1th gen */ + M_MBP_5_2, /* MacBook Pro, 5,2th gen */ + M_MBP_5_3, /* MacBook Pro, 5,3rd gen */ + M_MBP_6_1, /* MacBook Pro, 6,1th gen */ + M_MBP_6_2, /* MacBook Pro, 6,2th gen */ + M_MBP_7_1, /* MacBook Pro, 7,1th gen */ + M_MBP_8_2, /* MacBook Pro, 8,2nd gen */ + M_UNKNOWN /* placeholder */ +}; + +struct efifb_dmi_info { + char *optname; + unsigned long base; + int stride; + int width; + int height; + int flags; +}; + +#ifdef CONFIG_EFI + +extern struct efifb_dmi_info efifb_dmi_list[]; +void sysfb_apply_efi_quirks(void); + +#else /* CONFIG_EFI */ + +static inline void sysfb_apply_efi_quirks(void) +{ +} + +#endif /* CONFIG_EFI */ + +#ifdef CONFIG_X86_SYSFB + +bool parse_mode(const struct screen_info *si, + struct simplefb_platform_data *mode); +int create_simplefb(const struct screen_info *si, + const struct simplefb_platform_data *mode); + +#else /* CONFIG_X86_SYSFB */ + +static inline bool parse_mode(const struct screen_info *si, + struct simplefb_platform_data *mode) +{ + return false; +} + +static inline int create_simplefb(const struct screen_info *si, + const struct simplefb_platform_data *mode) +{ + return -EINVAL; +} + +#endif /* CONFIG_X86_SYSFB */ + +#endif /* _ARCH_X86_KERNEL_SYSFB_H */ diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 88d99ea77723..a5408b965c9d 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -103,6 +103,9 @@ obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o obj-$(CONFIG_OF) += devicetree.o obj-$(CONFIG_UPROBES) += uprobes.o +obj-y += sysfb.o +obj-$(CONFIG_X86_SYSFB) += sysfb_simplefb.o +obj-$(CONFIG_EFI) += sysfb_efi.o obj-$(CONFIG_PERF_EVENTS) += perf_regs.o obj-$(CONFIG_TRACING) += tracepoint.o diff --git a/arch/x86/kernel/sysfb.c b/arch/x86/kernel/sysfb.c new file mode 100644 index 000000000000..193ec2ce46c7 --- /dev/null +++ b/arch/x86/kernel/sysfb.c @@ -0,0 +1,74 @@ +/* + * Generic System Framebuffers on x86 + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * Simple-Framebuffer support for x86 systems + * Create a platform-device for any available boot framebuffer. The + * simple-framebuffer platform device is already available on DT systems, so + * this module parses the global "screen_info" object and creates a suitable + * platform device compatible with the "simple-framebuffer" DT object. If + * the framebuffer is incompatible, we instead create a legacy + * "vesa-framebuffer", "efi-framebuffer" or "platform-framebuffer" device and + * pass the screen_info as platform_data. This allows legacy drivers + * to pick these devices up without messing with simple-framebuffer drivers. + * The global "screen_info" is still valid at all times. + * + * If CONFIG_X86_SYSFB is not selected, we never register "simple-framebuffer" + * platform devices, but only use legacy framebuffer devices for + * backwards compatibility. + * + * TODO: We set the dev_id field of all platform-devices to 0. This allows + * other x86 OF/DT parsers to create such devices, too. However, they must + * start at offset 1 for this to work. + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/platform_data/simplefb.h> +#include <linux/platform_device.h> +#include <linux/screen_info.h> +#include <asm/sysfb.h> + +static __init int sysfb_init(void) +{ + struct screen_info *si = &screen_info; + struct simplefb_platform_data mode; + struct platform_device *pd; + const char *name; + bool compatible; + int ret; + + sysfb_apply_efi_quirks(); + + /* try to create a simple-framebuffer device */ + compatible = parse_mode(si, &mode); + if (compatible) { + ret = create_simplefb(si, &mode); + if (!ret) + return 0; + } + + /* if the FB is incompatible, create a legacy framebuffer device */ + if (si->orig_video_isVGA == VIDEO_TYPE_EFI) + name = "efi-framebuffer"; + else if (si->orig_video_isVGA == VIDEO_TYPE_VLFB) + name = "vesa-framebuffer"; + else + name = "platform-framebuffer"; + + pd = platform_device_register_resndata(NULL, name, 0, + NULL, 0, si, sizeof(*si)); + return IS_ERR(pd) ? PTR_ERR(pd) : 0; +} + +/* must execute after PCI subsystem for EFI quirks */ +device_initcall(sysfb_init); diff --git a/arch/x86/kernel/sysfb_efi.c b/arch/x86/kernel/sysfb_efi.c new file mode 100644 index 000000000000..b285d4e8c68e --- /dev/null +++ b/arch/x86/kernel/sysfb_efi.c @@ -0,0 +1,214 @@ +/* + * Generic System Framebuffers on x86 + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + * + * EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * EFI Quirks + * Several EFI systems do not correctly advertise their boot framebuffers. + * Hence, we use this static table of known broken machines and fix up the + * information so framebuffer drivers can load corectly. + */ + +#include <linux/dmi.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/pci.h> +#include <linux/screen_info.h> +#include <video/vga.h> +#include <asm/sysfb.h> + +enum { + OVERRIDE_NONE = 0x0, + OVERRIDE_BASE = 0x1, + OVERRIDE_STRIDE = 0x2, + OVERRIDE_HEIGHT = 0x4, + OVERRIDE_WIDTH = 0x8, +}; + +struct efifb_dmi_info efifb_dmi_list[] = { + [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */ + [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, + [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */ + [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE }, + [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE }, + [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE }, + [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE }, + [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + /* 11" Macbook Air 3,1 passes the wrong stride */ + [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE }, + [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */ + [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, + [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, + [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE }, + [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, + [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, + [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } +}; + +#define choose_value(dmivalue, fwvalue, field, flags) ({ \ + typeof(fwvalue) _ret_ = fwvalue; \ + if ((flags) & (field)) \ + _ret_ = dmivalue; \ + else if ((fwvalue) == 0) \ + _ret_ = dmivalue; \ + _ret_; \ + }) + +static int __init efifb_set_system(const struct dmi_system_id *id) +{ + struct efifb_dmi_info *info = id->driver_data; + + if (info->base == 0 && info->height == 0 && info->width == 0 && + info->stride == 0) + return 0; + + /* Trust the bootloader over the DMI tables */ + if (screen_info.lfb_base == 0) { +#if defined(CONFIG_PCI) + struct pci_dev *dev = NULL; + int found_bar = 0; +#endif + if (info->base) { + screen_info.lfb_base = choose_value(info->base, + screen_info.lfb_base, OVERRIDE_BASE, + info->flags); + +#if defined(CONFIG_PCI) + /* make sure that the address in the table is actually + * on a VGA device's PCI BAR */ + + for_each_pci_dev(dev) { + int i; + if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) + continue; + for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + resource_size_t start, end; + + start = pci_resource_start(dev, i); + if (start == 0) + break; + end = pci_resource_end(dev, i); + if (screen_info.lfb_base >= start && + screen_info.lfb_base < end) { + found_bar = 1; + } + } + } + if (!found_bar) + screen_info.lfb_base = 0; +#endif + } + } + if (screen_info.lfb_base) { + screen_info.lfb_linelength = choose_value(info->stride, + screen_info.lfb_linelength, OVERRIDE_STRIDE, + info->flags); + screen_info.lfb_width = choose_value(info->width, + screen_info.lfb_width, OVERRIDE_WIDTH, + info->flags); + screen_info.lfb_height = choose_value(info->height, + screen_info.lfb_height, OVERRIDE_HEIGHT, + info->flags); + if (screen_info.orig_video_isVGA == 0) + screen_info.orig_video_isVGA = VIDEO_TYPE_EFI; + } else { + screen_info.lfb_linelength = 0; + screen_info.lfb_width = 0; + screen_info.lfb_height = 0; + screen_info.orig_video_isVGA = 0; + return 0; + } + + printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x " + "(%dx%d, stride %d)\n", id->ident, + screen_info.lfb_base, screen_info.lfb_width, + screen_info.lfb_height, screen_info.lfb_linelength); + + return 1; +} + +#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \ + { \ + efifb_set_system, \ + name, \ + { \ + DMI_MATCH(DMI_BIOS_VENDOR, vendor), \ + DMI_MATCH(DMI_PRODUCT_NAME, name) \ + }, \ + &efifb_dmi_list[enumid] \ + } + +static const struct dmi_system_id efifb_dmi_system_table[] __initconst = { + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB), + /* At least one of these two will be right; maybe both? */ + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2), + EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1), + EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2), + {}, +}; + +__init void sysfb_apply_efi_quirks(void) +{ + if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || + !(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS)) + dmi_check_system(efifb_dmi_system_table); +} diff --git a/arch/x86/kernel/sysfb_simplefb.c b/arch/x86/kernel/sysfb_simplefb.c new file mode 100644 index 000000000000..22513e96b012 --- /dev/null +++ b/arch/x86/kernel/sysfb_simplefb.c @@ -0,0 +1,95 @@ +/* + * Generic System Framebuffers on x86 + * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * simple-framebuffer probing + * Try to convert "screen_info" into a "simple-framebuffer" compatible mode. + * If the mode is incompatible, we return "false" and let the caller create + * legacy nodes instead. + */ + +#include <linux/err.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/platform_data/simplefb.h> +#include <linux/platform_device.h> +#include <linux/screen_info.h> +#include <asm/sysfb.h> + +static const char simplefb_resname[] = "BOOTFB"; +static const struct simplefb_format formats[] = SIMPLEFB_FORMATS; + +/* try parsing x86 screen_info into a simple-framebuffer mode struct */ +__init bool parse_mode(const struct screen_info *si, + struct simplefb_platform_data *mode) +{ + const struct simplefb_format *f; + __u8 type; + unsigned int i; + + type = si->orig_video_isVGA; + if (type != VIDEO_TYPE_VLFB && type != VIDEO_TYPE_EFI) + return false; + + for (i = 0; i < ARRAY_SIZE(formats); ++i) { + f = &formats[i]; + if (si->lfb_depth == f->bits_per_pixel && + si->red_size == f->red.length && + si->red_pos == f->red.offset && + si->green_size == f->green.length && + si->green_pos == f->green.offset && + si->blue_size == f->blue.length && + si->blue_pos == f->blue.offset && + si->rsvd_size == f->transp.length && + si->rsvd_pos == f->transp.offset) { + mode->format = f->name; + mode->width = si->lfb_width; + mode->height = si->lfb_height; + mode->stride = si->lfb_linelength; + return true; + } + } + + return false; +} + +__init int create_simplefb(const struct screen_info *si, + const struct simplefb_platform_data *mode) +{ + struct platform_device *pd; + struct resource res; + unsigned long len; + + /* don't use lfb_size as it may contain the whole VMEM instead of only + * the part that is occupied by the framebuffer */ + len = mode->height * mode->stride; + len = PAGE_ALIGN(len); + if (len > si->lfb_size << 16) { + printk(KERN_WARNING "sysfb: VRAM smaller than advertised\n"); + return -EINVAL; + } + + /* setup IORESOURCE_MEM as framebuffer memory */ + memset(&res, 0, sizeof(res)); + res.flags = IORESOURCE_MEM; + res.name = simplefb_resname; + res.start = si->lfb_base; + res.end = si->lfb_base + len - 1; + if (res.end <= res.start) + return -EINVAL; + + pd = platform_device_register_resndata(NULL, "simple-framebuffer", 0, + &res, 1, mode, sizeof(*mode)); + if (IS_ERR(pd)) + return PTR_ERR(pd); + + return 0; +} diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 4cf1e1dd5621..34c3d960634d 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -2457,7 +2457,7 @@ config FB_HYPERV config FB_SIMPLE bool "Simple framebuffer support" - depends on (FB = y) && OF + depends on (FB = y) select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT @@ -2469,8 +2469,7 @@ config FB_SIMPLE pre-allocated frame buffer surface. Configuration re: surface address, size, and format must be provided - through device tree, or potentially plain old platform data in the - future. + through device tree, or plain old platform data. source "drivers/video/omap/Kconfig" source "drivers/video/omap2/Kconfig" diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index 8c30603e0a86..846caab75a46 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -92,7 +92,8 @@ config DUMMY_CONSOLE_ROWS config FRAMEBUFFER_CONSOLE tristate "Framebuffer Console support" - depends on FB + depends on FB && !UML + select VT_HW_CONSOLE_BINDING select CRC32 select FONT_SUPPORT help diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c index 50fe668c6172..2a8286ef2645 100644 --- a/drivers/video/efifb.c +++ b/drivers/video/efifb.c @@ -15,6 +15,7 @@ #include <linux/dmi.h> #include <linux/pci.h> #include <video/vga.h> +#include <asm/sysfb.h> static bool request_mem_succeeded = false; @@ -38,223 +39,6 @@ static struct fb_fix_screeninfo efifb_fix = { .visual = FB_VISUAL_TRUECOLOR, }; -enum { - M_I17, /* 17-Inch iMac */ - M_I20, /* 20-Inch iMac */ - M_I20_SR, /* 20-Inch iMac (Santa Rosa) */ - M_I24, /* 24-Inch iMac */ - M_I24_8_1, /* 24-Inch iMac, 8,1th gen */ - M_I24_10_1, /* 24-Inch iMac, 10,1th gen */ - M_I27_11_1, /* 27-Inch iMac, 11,1th gen */ - M_MINI, /* Mac Mini */ - M_MINI_3_1, /* Mac Mini, 3,1th gen */ - M_MINI_4_1, /* Mac Mini, 4,1th gen */ - M_MB, /* MacBook */ - M_MB_2, /* MacBook, 2nd rev. */ - M_MB_3, /* MacBook, 3rd rev. */ - M_MB_5_1, /* MacBook, 5th rev. */ - M_MB_6_1, /* MacBook, 6th rev. */ - M_MB_7_1, /* MacBook, 7th rev. */ - M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */ - M_MBA, /* MacBook Air */ - M_MBA_3, /* Macbook Air, 3rd rev */ - M_MBP, /* MacBook Pro */ - M_MBP_2, /* MacBook Pro 2nd gen */ - M_MBP_2_2, /* MacBook Pro 2,2nd gen */ - M_MBP_SR, /* MacBook Pro (Santa Rosa) */ - M_MBP_4, /* MacBook Pro, 4th gen */ - M_MBP_5_1, /* MacBook Pro, 5,1th gen */ - M_MBP_5_2, /* MacBook Pro, 5,2th gen */ - M_MBP_5_3, /* MacBook Pro, 5,3rd gen */ - M_MBP_6_1, /* MacBook Pro, 6,1th gen */ - M_MBP_6_2, /* MacBook Pro, 6,2th gen */ - M_MBP_7_1, /* MacBook Pro, 7,1th gen */ - M_MBP_8_2, /* MacBook Pro, 8,2nd gen */ - M_UNKNOWN /* placeholder */ -}; - -#define OVERRIDE_NONE 0x0 -#define OVERRIDE_BASE 0x1 -#define OVERRIDE_STRIDE 0x2 -#define OVERRIDE_HEIGHT 0x4 -#define OVERRIDE_WIDTH 0x8 - -static struct efifb_dmi_info { - char *optname; - unsigned long base; - int stride; - int width; - int height; - int flags; -} dmi_list[] __initdata = { - [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, - [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */ - [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, - [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */ - [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, - [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE }, - [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE }, - [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE }, - [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE }, - [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, - [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - /* 11" Macbook Air 3,1 passes the wrong stride */ - [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE }, - [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, - [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */ - [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, - [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, - [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, - [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, - [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, - [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE }, - [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, - [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE }, - [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE }, - [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE }, - [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE } -}; - -static int set_system(const struct dmi_system_id *id); - -#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \ - { set_system, name, { \ - DMI_MATCH(DMI_BIOS_VENDOR, vendor), \ - DMI_MATCH(DMI_PRODUCT_NAME, name) }, \ - &dmi_list[enumid] } - -static const struct dmi_system_id dmi_system_table[] __initconst = { - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17), - /* At least one of these two will be right; maybe both? */ - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20), - /* At least one of these two will be right; maybe both? */ - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB), - /* At least one of these two will be right; maybe both? */ - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB), - /* At least one of these two will be right; maybe both? */ - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2), - EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1), - EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2), - {}, -}; - -#define choose_value(dmivalue, fwvalue, field, flags) ({ \ - typeof(fwvalue) _ret_ = fwvalue; \ - if ((flags) & (field)) \ - _ret_ = dmivalue; \ - else if ((fwvalue) == 0) \ - _ret_ = dmivalue; \ - _ret_; \ - }) - -static int set_system(const struct dmi_system_id *id) -{ - struct efifb_dmi_info *info = id->driver_data; - - if (info->base == 0 && info->height == 0 && info->width == 0 - && info->stride == 0) - return 0; - - /* Trust the bootloader over the DMI tables */ - if (screen_info.lfb_base == 0) { -#if defined(CONFIG_PCI) - struct pci_dev *dev = NULL; - int found_bar = 0; -#endif - if (info->base) { - screen_info.lfb_base = choose_value(info->base, - screen_info.lfb_base, OVERRIDE_BASE, - info->flags); - -#if defined(CONFIG_PCI) - /* make sure that the address in the table is actually - * on a VGA device's PCI BAR */ - - for_each_pci_dev(dev) { - int i; - if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) - continue; - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { - resource_size_t start, end; - - start = pci_resource_start(dev, i); - if (start == 0) - break; - end = pci_resource_end(dev, i); - if (screen_info.lfb_base >= start && - screen_info.lfb_base < end) { - found_bar = 1; - } - } - } - if (!found_bar) - screen_info.lfb_base = 0; -#endif - } - } - if (screen_info.lfb_base) { - screen_info.lfb_linelength = choose_value(info->stride, - screen_info.lfb_linelength, OVERRIDE_STRIDE, - info->flags); - screen_info.lfb_width = choose_value(info->width, - screen_info.lfb_width, OVERRIDE_WIDTH, - info->flags); - screen_info.lfb_height = choose_value(info->height, - screen_info.lfb_height, OVERRIDE_HEIGHT, - info->flags); - if (screen_info.orig_video_isVGA == 0) - screen_info.orig_video_isVGA = VIDEO_TYPE_EFI; - } else { - screen_info.lfb_linelength = 0; - screen_info.lfb_width = 0; - screen_info.lfb_height = 0; - screen_info.orig_video_isVGA = 0; - return 0; - } - - printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x " - "(%dx%d, stride %d)\n", id->ident, - screen_info.lfb_base, screen_info.lfb_width, - screen_info.lfb_height, screen_info.lfb_linelength); - - - return 1; -} - static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) @@ -312,7 +96,7 @@ void vga_set_default_device(struct pci_dev *pdev) default_vga = pdev; } -static int __init efifb_setup(char *options) +static int efifb_setup(char *options) { char *this_opt; int i; @@ -323,12 +107,12 @@ static int __init efifb_setup(char *options) if (!*this_opt) continue; for (i = 0; i < M_UNKNOWN; i++) { - if (!strcmp(this_opt, dmi_list[i].optname) && - dmi_list[i].base != 0) { - screen_info.lfb_base = dmi_list[i].base; - screen_info.lfb_linelength = dmi_list[i].stride; - screen_info.lfb_width = dmi_list[i].width; - screen_info.lfb_height = dmi_list[i].height; + if (!strcmp(this_opt, efifb_dmi_list[i].optname) && + efifb_dmi_list[i].base != 0) { + screen_info.lfb_base = efifb_dmi_list[i].base; + screen_info.lfb_linelength = efifb_dmi_list[i].stride; + screen_info.lfb_width = efifb_dmi_list[i].width; + screen_info.lfb_height = efifb_dmi_list[i].height; } } if (!strncmp(this_opt, "base:", 5)) @@ -369,13 +153,28 @@ static int __init efifb_setup(char *options) return 0; } -static int __init efifb_probe(struct platform_device *dev) +static int efifb_probe(struct platform_device *dev) { struct fb_info *info; int err; unsigned int size_vmode; unsigned int size_remap; unsigned int size_total; + char *option = NULL; + + if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) + return -ENODEV; + + if (fb_get_options("efifb", &option)) + return -ENODEV; + efifb_setup(option); + + /* We don't get linelength from UGA Draw Protocol, only from + * EFI Graphics Protocol. So if it's not in DMI, and it's not + * passed in from the user, we really can't use the framebuffer. + */ + if (!screen_info.lfb_linelength) + return -ENODEV; if (!screen_info.lfb_depth) screen_info.lfb_depth = 32; @@ -539,55 +338,12 @@ err_release_mem: } static struct platform_driver efifb_driver = { - .driver = { - .name = "efifb", + .driver = { + .name = "efi-framebuffer", + .owner = THIS_MODULE, }, + .probe = efifb_probe, }; -static struct platform_device efifb_device = { - .name = "efifb", -}; - -static int __init efifb_init(void) -{ - int ret; - char *option = NULL; |