From e355880b838c80ff53e6386a1caad10e6f719259 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 14 Sep 2006 11:47:55 -0300 Subject: V4L/DVB (4632): Zoran: Implement pcipci failure check We should be doing this on all devices doing PCI<->PCI DMA. We only set the _FAIL ones when the DMA will fail or may cause crashes. This relies on the PCIAGP_FAIL patch I sent to Andrew already Signed-off-by: Alan Cox Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/zoran_driver.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/media/video/zoran_driver.c') diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c index 5f90db27892..862a984c215 100644 --- a/drivers/media/video/zoran_driver.c +++ b/drivers/media/video/zoran_driver.c @@ -1512,6 +1512,13 @@ setup_fbuffer (struct file *file, if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) return -EPERM; + /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on + ALi Magik (that needs very low latency while the card needs a + higher value always) */ + + if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK)) + return -ENXIO; + /* we need a bytesperline value, even if not given */ if (!bytesperline) bytesperline = width * ((fmt->depth + 7) & ~7) / 8; -- cgit v1.2.3