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d02f1aa391
Some Lenovo 2-in-1s with a detachable keyboard have a portrait screen but advertise a landscape resolution and pitch, resulting in a messed up display if the kernel tries to show anything on the efifb (because of the wrong pitch). Fix this by adding a new DMI match table for devices which need to have their width and height swapped. At first it was tried to use the existing table for overriding some of the efifb parameters, but some of the affected devices have variants with different LCD resolutions which will not work with hardcoded override values. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1730783 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190721152418.11644-1-hdegoede@redhat.com
285 lines
10 KiB
C
285 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Generic System Framebuffers on x86
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* Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
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*
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* EFI Quirks Copyright (c) 2006 Edgar Hucek <gimli@dark-green.com>
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*/
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/*
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* EFI Quirks
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* Several EFI systems do not correctly advertise their boot framebuffers.
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* Hence, we use this static table of known broken machines and fix up the
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* information so framebuffer drivers can load corectly.
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*/
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#include <linux/dmi.h>
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#include <linux/err.h>
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#include <linux/efi.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/pci.h>
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#include <linux/screen_info.h>
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#include <video/vga.h>
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#include <asm/efi.h>
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#include <asm/sysfb.h>
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enum {
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OVERRIDE_NONE = 0x0,
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OVERRIDE_BASE = 0x1,
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OVERRIDE_STRIDE = 0x2,
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OVERRIDE_HEIGHT = 0x4,
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OVERRIDE_WIDTH = 0x8,
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};
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struct efifb_dmi_info efifb_dmi_list[] = {
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[M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
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[M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
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[M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
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[M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
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[M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
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[M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
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[M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
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[M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
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[M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
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[M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
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[M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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[M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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[M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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[M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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[M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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/* 11" Macbook Air 3,1 passes the wrong stride */
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[M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
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[M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
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[M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
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[M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
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[M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
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[M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
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[M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
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[M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
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[M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
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[M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
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[M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
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[M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
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[M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
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[M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
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};
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void efifb_setup_from_dmi(struct screen_info *si, const char *opt)
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{
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int i;
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for (i = 0; i < M_UNKNOWN; i++) {
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if (efifb_dmi_list[i].base != 0 &&
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!strcmp(opt, efifb_dmi_list[i].optname)) {
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si->lfb_base = efifb_dmi_list[i].base;
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si->lfb_linelength = efifb_dmi_list[i].stride;
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si->lfb_width = efifb_dmi_list[i].width;
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si->lfb_height = efifb_dmi_list[i].height;
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}
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}
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}
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#define choose_value(dmivalue, fwvalue, field, flags) ({ \
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typeof(fwvalue) _ret_ = fwvalue; \
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if ((flags) & (field)) \
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_ret_ = dmivalue; \
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else if ((fwvalue) == 0) \
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_ret_ = dmivalue; \
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_ret_; \
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})
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static int __init efifb_set_system(const struct dmi_system_id *id)
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{
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struct efifb_dmi_info *info = id->driver_data;
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if (info->base == 0 && info->height == 0 && info->width == 0 &&
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info->stride == 0)
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return 0;
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/* Trust the bootloader over the DMI tables */
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if (screen_info.lfb_base == 0) {
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#if defined(CONFIG_PCI)
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struct pci_dev *dev = NULL;
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int found_bar = 0;
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#endif
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if (info->base) {
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screen_info.lfb_base = choose_value(info->base,
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screen_info.lfb_base, OVERRIDE_BASE,
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info->flags);
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#if defined(CONFIG_PCI)
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/* make sure that the address in the table is actually
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* on a VGA device's PCI BAR */
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for_each_pci_dev(dev) {
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int i;
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if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
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continue;
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for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
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resource_size_t start, end;
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unsigned long flags;
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flags = pci_resource_flags(dev, i);
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if (!(flags & IORESOURCE_MEM))
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continue;
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if (flags & IORESOURCE_UNSET)
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continue;
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if (pci_resource_len(dev, i) == 0)
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continue;
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start = pci_resource_start(dev, i);
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end = pci_resource_end(dev, i);
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if (screen_info.lfb_base >= start &&
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screen_info.lfb_base < end) {
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found_bar = 1;
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break;
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}
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}
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}
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if (!found_bar)
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screen_info.lfb_base = 0;
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#endif
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}
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}
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if (screen_info.lfb_base) {
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screen_info.lfb_linelength = choose_value(info->stride,
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screen_info.lfb_linelength, OVERRIDE_STRIDE,
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info->flags);
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screen_info.lfb_width = choose_value(info->width,
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screen_info.lfb_width, OVERRIDE_WIDTH,
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info->flags);
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screen_info.lfb_height = choose_value(info->height,
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screen_info.lfb_height, OVERRIDE_HEIGHT,
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info->flags);
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if (screen_info.orig_video_isVGA == 0)
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screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
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} else {
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screen_info.lfb_linelength = 0;
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screen_info.lfb_width = 0;
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screen_info.lfb_height = 0;
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screen_info.orig_video_isVGA = 0;
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return 0;
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}
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printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
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"(%dx%d, stride %d)\n", id->ident,
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screen_info.lfb_base, screen_info.lfb_width,
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screen_info.lfb_height, screen_info.lfb_linelength);
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return 1;
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}
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#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
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{ \
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efifb_set_system, \
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name, \
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{ \
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DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
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DMI_MATCH(DMI_PRODUCT_NAME, name) \
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}, \
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&efifb_dmi_list[enumid] \
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}
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static const struct dmi_system_id efifb_dmi_system_table[] __initconst = {
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
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/* At least one of these two will be right; maybe both? */
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
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/* At least one of these two will be right; maybe both? */
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
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/* At least one of these two will be right; maybe both? */
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
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/* At least one of these two will be right; maybe both? */
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
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EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
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EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
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{},
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};
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/*
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* Some devices have a portrait LCD but advertise a landscape resolution (and
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* pitch). We simply swap width and height for these devices so that we can
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* correctly deal with some of them coming with multiple resolutions.
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*/
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static const struct dmi_system_id efifb_dmi_swap_width_height[] __initconst = {
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{
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/*
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* Lenovo MIIX310-10ICR, only some batches have the troublesome
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* 800x1280 portrait screen. Luckily the portrait version has
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* its own BIOS version, so we match on that.
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*/
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.matches = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
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DMI_EXACT_MATCH(DMI_BIOS_VERSION, "1HCN44WW"),
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},
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},
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{
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/* Lenovo MIIX 320-10ICR with 800x1280 portrait screen */
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.matches = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
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"Lenovo MIIX 320-10ICR"),
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},
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},
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{
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/* Lenovo D330 with 800x1280 or 1200x1920 portrait screen */
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.matches = {
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DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
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DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
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"Lenovo ideapad D330-10IGM"),
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},
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},
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{},
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};
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__init void sysfb_apply_efi_quirks(void)
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{
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if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI ||
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!(screen_info.capabilities & VIDEO_CAPABILITY_SKIP_QUIRKS))
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dmi_check_system(efifb_dmi_system_table);
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if (screen_info.orig_video_isVGA == VIDEO_TYPE_EFI &&
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dmi_check_system(efifb_dmi_swap_width_height)) {
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u16 temp = screen_info.lfb_width;
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screen_info.lfb_width = screen_info.lfb_height;
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screen_info.lfb_height = temp;
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screen_info.lfb_linelength = 4 * screen_info.lfb_width;
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}
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}
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