/*
 * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
 *
 * 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 <linux/fb.h>
#include <linux/pci.h>
#include <linux/module.h>

int fb_is_primary_device(struct fb_info *info)
{
	struct device *device = info->device;
	struct pci_dev *pci_dev = NULL;
	struct resource *res = NULL;
	int retval = 0;

	if (device)
		pci_dev = to_pci_dev(device);

	if (pci_dev)
		res = &pci_dev->resource[PCI_ROM_RESOURCE];

	if (res && res->flags & IORESOURCE_ROM_SHADOW)
		retval = 1;

	return retval;
}
EXPORT_SYMBOL(fb_is_primary_device);
MODULE_LICENSE("GPL");

/*
 * Copyright (C) 2007 Antonino Daplas <adaplas@gmail.com>
 *
 * 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 <linux/fb.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/vgaarb.h>

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");

Use vga_default_device() when determining whether an fb is primary
x86: Use vga_default_device() when determining whether an fb is primary

IORESOURCE_ROM_SHADOW is not necessarily an indication that the hardware
is the primary device. Add support for using the vgaarb functions and
fall back if nothing's set them.

Signed-off-by: Matthew Garrett <4cf8d479716eba9bc68e0146d95320fcb138b96b@redhat.com>
Cc: 9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@redhat.com
Acked-by: 8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com
Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>
