From 448504130f18bc9d8d10ba045775c906abd01438 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 18 Apr 2008 23:30:45 +0400 Subject: [PATCH] [SCSI] aic7xxx: fix MMIO for PPC 44x platforms The driver stores the PCI resource address into 'u_long' variable before calling ioremap_nocache() on it. This warrants kernel oops when the registers are accessed on PPC 44x platforms which (being 32-bit) have PCI memory space mapped beyond 4 GB. The arch/ppc/ kernel has a fixup in ioremap() that helps create an illusion that the PCI memory resources are mapped below 4 GB, but arch/powerpc/ code got rid of this trick, having instead CONFIG_RESOURCES_64BIT enabled. Signed-off-by: Sergei Shtylyov Signed-off-by: James Bottomley --- drivers/scsi/aic7xxx/aic7xxx_osm.h | 2 +- drivers/scsi/aic7xxx/aic7xxx_osm_pci.c | 18 +++++++++--------- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.h b/drivers/scsi/aic7xxx/aic7xxx_osm.h index 9d6e0660dd..c2a9ad76d3 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.h +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.h @@ -365,7 +365,7 @@ struct ahc_platform_data { #define AHC_LINUX_NOIRQ ((uint32_t)~0) uint32_t irq; /* IRQ for this adapter */ uint32_t bios_address; - uint32_t mem_busaddr; /* Mem Base Addr */ + resource_size_t mem_busaddr; /* Mem Base Addr */ }; /************************** OS Utility Wrappers *******************************/ diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c index bd422a80e9..950a046788 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c @@ -344,7 +344,7 @@ ahc_linux_pci_exit(void) } static int -ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, u_long *base) +ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, resource_size_t *base) { if (aic7xxx_allow_memio == 0) return (ENOMEM); @@ -359,10 +359,10 @@ ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc, u_long *base) static int ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc, - u_long *bus_addr, + resource_size_t *bus_addr, uint8_t __iomem **maddr) { - u_long start; + resource_size_t start; int error; error = 0; @@ -387,7 +387,7 @@ int ahc_pci_map_registers(struct ahc_softc *ahc) { uint32_t command; - u_long base; + resource_size_t base; uint8_t __iomem *maddr; int error; @@ -425,12 +425,12 @@ ahc_pci_map_registers(struct ahc_softc *ahc) } else command |= PCIM_CMD_MEMEN; } else { - printf("aic7xxx: PCI%d:%d:%d MEM region 0x%lx " + printf("aic7xxx: PCI%d:%d:%d MEM region 0x%llx " "unavailable. Cannot memory map device.\n", ahc_get_pci_bus(ahc->dev_softc), ahc_get_pci_slot(ahc->dev_softc), ahc_get_pci_function(ahc->dev_softc), - base); + (unsigned long long)base); } /* @@ -441,15 +441,15 @@ ahc_pci_map_registers(struct ahc_softc *ahc) error = ahc_linux_pci_reserve_io_region(ahc, &base); if (error == 0) { ahc->tag = BUS_SPACE_PIO; - ahc->bsh.ioport = base; + ahc->bsh.ioport = (u_long)base; command |= PCIM_CMD_PORTEN; } else { - printf("aic7xxx: PCI%d:%d:%d IO region 0x%lx[0..255] " + printf("aic7xxx: PCI%d:%d:%d IO region 0x%llx[0..255] " "unavailable. Cannot map device.\n", ahc_get_pci_bus(ahc->dev_softc), ahc_get_pci_slot(ahc->dev_softc), ahc_get_pci_function(ahc->dev_softc), - base); + (unsigned long long)base); } } ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, 4); -- 2.39.5