[IA64] Make SN2 PCI code use ioremap rather than manually mangle the address

This one changes the SN2 specific PCI drivers to use ioremap() for
obtaining the real address to access for the PCI registers instead of
manually calculating them with __IA64_UNCACHED_OFFSET.

The patch should have no real change when running on a normal Linux
kernel, but when running as a paravirtualized it is needed.

Signed-off-by: Jes Sorenson <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Jes Sorensen 2007-06-18 17:19:05 +02:00 committed by Tony Luck
parent c034637967
commit 1ee27a4eed
3 changed files with 10 additions and 5 deletions

View File

@ -15,6 +15,7 @@
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/pic.h>
#include <asm/sn/sn2/sn_hwperf.h>
#include "xtalk/xwidgetdev.h"
#include "xtalk/hubdev.h"
@ -130,9 +131,9 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
}
memcpy(soft, prom_bussoft, sizeof(struct pcibus_info));
soft->pbi_buscommon.bs_base =
(((u64) soft->pbi_buscommon.
bs_base << 4) >> 4) | __IA64_UNCACHED_OFFSET;
soft->pbi_buscommon.bs_base = (unsigned long)
ioremap(REGION_OFFSET(soft->pbi_buscommon.bs_base),
sizeof(struct pic));
spin_lock_init(&soft->pbi_lock);

View File

@ -610,7 +610,9 @@ tioca_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
return NULL;
memcpy(tioca_common, prom_bussoft, sizeof(struct tioca_common));
tioca_common->ca_common.bs_base |= __IA64_UNCACHED_OFFSET;
tioca_common->ca_common.bs_base = (unsigned long)
ioremap(REGION_OFFSET(tioca_common->ca_common.bs_base),
sizeof(struct tioca_common));
/* init kernel-private area */

View File

@ -1002,7 +1002,9 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
return NULL;
memcpy(tioce_common, prom_bussoft, sizeof(struct tioce_common));
tioce_common->ce_pcibus.bs_base |= __IA64_UNCACHED_OFFSET;
tioce_common->ce_pcibus.bs_base = (unsigned long)
ioremap(REGION_OFFSET(tioce_common->ce_pcibus.bs_base),
sizeof(struct tioce_common));
tioce_kern = tioce_kern_init(tioce_common);
if (tioce_kern == NULL) {