From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sander Eikelenboom Date: Fri, 31 Jan 2014 09:28:22 +0000 Subject: [PATCH v2] Setting the IORESOURCE_ROM_SHADOW flag on a VGA card other than the primary prevents it f Message-Id: <1391160503-11122-1-git-send-email-linux@eikelenboom.it> List-Id: References: <20140130000831.GJ16825@google.com> In-Reply-To: <20140130000831.GJ16825@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Bjorn Helgaas , Tony Luck , Dave Airlie , Eiichiro Oiwa , Greg Kroah-Hartman Cc: Sander Eikelenboom , Konrad Rzeszutek Wilk , "linux-kernel @ vger . kernel . org" , "linux-pci @ vger . kernel . org" , linux-ia64@vger.kernel.org Hi Bjorn / Tony, I fixed up ia64 as well and brought it inline again with the x86 code, but i don't have a ia64 machine, so that part is untested. Perhaps Tony is able to review/test it ? Sander Setting the IORESOURCE_ROM_SHADOW flag on a VGA card other than the primary prevents it from reading it's own rom. It will get the content of the shadowrom at C000 instead, which is of the primary VGA card and the driver of the secondary card will bail out. Fix this by checking if the arch code or vga-arbitration has already determined the vga_default_device, if so only apply the fix to this primary video device and let the comment reflect this. v2: - Fix pci_fixup_video both in x86 and ia64 Sander Eikelenboom (1): Setting the IORESOURCE_ROM_SHADOW flag on a VGA card other than the primary prevents it from reading it's own rom. It will get the content of the shadowrom at C000 instead, which is of the primary VGA card and the driver of the secondary card will bail out. arch/ia64/pci/fixup.c | 24 +++++++++++++----------- arch/x86/pci/fixup.c | 18 ++++++++++-------- 2 files changed, 23 insertions(+), 19 deletions(-) -- 1.7.10.4