Simplify serverworks workaround.
PATCH 1/1 Simplify serverworks workaround.
Linus, Richard,
Patch below makes the workaround for Serverworks LE chipsets a little simpler, and also adds a printk to let people know why they can't use Write-combining.
regards,
Dave.
arch/i386/kernel/mtrr.c +7 -16
@@ -473,25 +473,16 @@unsigned long config, dummy;struct pci_dev *dev =NULL ; -/* ServerWorks LE chipsets have problems with write-combining -Don't allow it and leave room for other chipsets to be tagged */ +/* ServerWorks LE chipsets have problems with write-combining +Don't allow it and leave room for other chipsets to be tagged */ -if ((dev =pci_find_class (PCI_CLASS_BRIDGE_HOST <<8 ,NULL )) !=NULL ) { -switch (dev->vendor) { -case PCI_VENDOR_ID_SERVERWORKS : -switch (dev->device) { -case PCI_DEVICE_ID_SERVERWORKS_LE : +if ((dev =pci_find_class (PCI_CLASS_BRIDGE_HOST <<8 ,NULL )) !=NULL ) { +if ((dev->vendor ==PCI_VENDOR_ID_SERVERWORKS ) && + (dev->device ==PCI_DEVICE_ID_SERVERWORKS_LE )) { +printk (KERN_INFO "mtrr: Serverworks LE detected. Write-combining disabled.\n" );return 0 ; -break ; -default : -break ; - } -break ; -default : -break ; + } } - } -switch ( mtrr_if ) {
Signature · 2 lines
| Dave Jones. http://www.codemonkey.org.uk | SuSE Labs .
Quoted 4 lines · Dave Jones
Linus, Richard,
Patch below makes the workaround for Serverworks LE chipsets a little simpler, and also adds a printk to let people know why they can't use Write-combining.
Do the serverworks HE chipsets have the same problem?