[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>

diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 04a8256017eb6ab8c0294580c52b12b584c15102..b42bfcae6f911108f364473ae7e3d7a7fcf80b26 100644 (file)
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -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);
 

diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index b9bedbd6e1d628d38016e9910fd0ab0b6307b7a8..d798dd4d0dc444eb2144eaaf4404e71552c3c7af 100644 (file)
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -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 */
 

diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index f4c0b961a9390ccbaad79dc45413615a9f6addc3..84b72b27e27fcdc6917e3587f52c8b55039a355b 100644 (file)
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -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) {