From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/x86/video/fbdev.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/x86/video/fbdev.c (limited to 'arch/x86/video/fbdev.c') diff --git a/arch/x86/video/fbdev.c b/arch/x86/video/fbdev.c new file mode 100644 index 000000000..9fd24846d --- /dev/null +++ b/arch/x86/video/fbdev.c @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2007 Antonino Daplas + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + */ +#include +#include +#include +#include + +int fb_is_primary_device(struct fb_info *info) +{ + struct device *device = info->device; + struct pci_dev *default_device = vga_default_device(); + struct pci_dev *pci_dev; + struct resource *res; + + if (!device || !dev_is_pci(device)) + return 0; + + pci_dev = to_pci_dev(device); + + if (default_device) { + if (pci_dev == default_device) + return 1; + return 0; + } + + res = pci_dev->resource + PCI_ROM_RESOURCE; + + if (res->flags & IORESOURCE_ROM_SHADOW) + return 1; + + return 0; +} +EXPORT_SYMBOL(fb_is_primary_device); +MODULE_LICENSE("GPL"); -- cgit v1.2.3