From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/x86/video/fbdev.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 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 00000000..d5644bbe --- /dev/null +++ b/arch/x86/video/fbdev.c @@ -0,0 +1,42 @@ +/* + * 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 *pci_dev = NULL; + struct pci_dev *default_device = vga_default_device(); + struct resource *res = NULL; + + if (device) + pci_dev = to_pci_dev(device); + + if (!pci_dev) + return 0; + + if (default_device) { + if (pci_dev == default_device) + return 1; + else + return 0; + } + + res = &pci_dev->resource[PCI_ROM_RESOURCE]; + + if (res && res->flags & IORESOURCE_ROM_SHADOW) + return 1; + + return 0; +} +EXPORT_SYMBOL(fb_is_primary_device); +MODULE_LICENSE("GPL"); -- cgit v1.3.1