diff options
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/io.h | 1 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/pci.h | 7 | ||||
| -rw-r--r-- | arch/xtensa/kernel/pci.c | 94 | ||||
| -rw-r--r-- | arch/xtensa/kernel/syscall.c | 2 | ||||
| -rw-r--r-- | arch/xtensa/mm/cache.c | 2 | ||||
| -rw-r--r-- | arch/xtensa/platforms/iss/simdisk.c | 1 |
6 files changed, 15 insertions, 92 deletions
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index c38e5a732d86..acc5bb2cf1c7 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -52,6 +52,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset, return xtensa_ioremap_cache(offset, size); } #define ioremap_cache ioremap_cache +#define ioremap_nocache ioremap_nocache #define ioremap_wc ioremap_nocache #define ioremap_wt ioremap_nocache diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h index 5c83798e3b2e..d5a82153a7c5 100644 --- a/arch/xtensa/include/asm/pci.h +++ b/arch/xtensa/include/asm/pci.h @@ -44,9 +44,10 @@ extern struct pci_controller* pcibios_alloc_controller(void); #define PCI_DMA_BUS_IS_PHYS (1) -/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ -#define HAVE_PCI_MMAP 1 -#define arch_can_pci_mmap_io() 1 +/* Tell PCI code what kind of PCI resource mappings we support */ +#define HAVE_PCI_MMAP 1 +#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 +#define arch_can_pci_mmap_io() 1 #endif /* __KERNEL__ */ diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index d981f01c8d89..b7c7a60c7000 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -39,7 +39,6 @@ * pcibios_align_resource * pcibios_fixup_bus * pci_bus_add_device - * pci_mmap_page_range */ struct pci_controller* pci_ctrl_head; @@ -258,98 +257,21 @@ pci_controller_num(struct pci_dev *dev) #endif /* CONFIG_PROC_FS */ /* - * Platform support for /proc/bus/pci/X/Y mmap()s, - * modelled on the sparc64 implementation by Dave Miller. + * Platform support for /proc/bus/pci/X/Y mmap()s. * -- paulus. */ -/* - * Adjust vm_pgoff of VMA such that it is the physical page offset - * corresponding to the 32-bit pci bus offset for DEV requested by the user. - * - * Basically, the user finds the base address for his device which he wishes - * to mmap. They read the 32-bit value from the config space base register, - * add whatever PAGE_SIZE multiple offset they wish, and feed this into the - * offset parameter of mmap on /proc/bus/pci/XXX for that device. - * - * Returns negative error code on failure, zero on success. - */ -static __inline__ int -__pci_mmap_make_offset(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) +int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma) { - struct pci_controller *pci_ctrl = (struct pci_controller*) dev->sysdata; - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - unsigned long io_offset = 0; - int i, res_bit; + struct pci_controller *pci_ctrl = (struct pci_controller*) pdev->sysdata; + resource_size_t ioaddr = pci_resource_start(pdev, bar); if (pci_ctrl == 0) return -EINVAL; /* should never happen */ - /* If memory, add on the PCI bridge address offset */ - if (mmap_state == pci_mmap_mem) { - res_bit = IORESOURCE_MEM; - } else { - io_offset = (unsigned long)pci_ctrl->io_space.base; - offset += io_offset; - res_bit = IORESOURCE_IO; - } - - /* - * Check that the offset requested corresponds to one of the - * resources of the device. - */ - for (i = 0; i <= PCI_ROM_RESOURCE; i++) { - struct resource *rp = &dev->resource[i]; - int flags = rp->flags; - - /* treat ROM as memory (should be already) */ - if (i == PCI_ROM_RESOURCE) - flags |= IORESOURCE_MEM; - - /* Active and same type? */ - if ((flags & res_bit) == 0) - continue; - - /* In the range of this resource? */ - if (offset < (rp->start & PAGE_MASK) || offset > rp->end) - continue; - - /* found it! construct the final physical address */ - if (mmap_state == pci_mmap_io) - offset += pci_ctrl->io_space.start - io_offset; - vma->vm_pgoff = offset >> PAGE_SHIFT; - return 0; - } - - return -EINVAL; -} + /* Convert to an offset within this PCI controller */ + ioaddr -= (unsigned long)pci_ctrl->io_space.base; -/* - * Perform the actual remap of the pages for a PCI device mapping, as - * appropriate for this architecture. The region in the process to map - * is described by vm_start and vm_end members of VMA, the base physical - * address is found in vm_pgoff. - * The pci device structure is provided so that architectures may make mapping - * decisions on a per-device or per-bus basis. - * - * Returns a negative error code on failure, zero on success. - */ -int pci_mmap_page_range(struct pci_dev *dev, int bar, - struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, - int write_combine) -{ - int ret; - - ret = __pci_mmap_make_offset(dev, vma, mmap_state); - if (ret < 0) - return ret; - - vma->vm_page_prot = pgprot_device(vma->vm_page_prot); - - ret = io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, - vma->vm_end - vma->vm_start,vma->vm_page_prot); - - return ret; + vma->vm_pgoff += (ioaddr + pci_ctrl->io_space.start) >> PAGE_SHIFT; + return 0; } diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c index 74afbf02d07e..8201748da05b 100644 --- a/arch/xtensa/kernel/syscall.c +++ b/arch/xtensa/kernel/syscall.c @@ -55,7 +55,7 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg) asmlinkage long xtensa_fadvise64_64(int fd, int advice, unsigned long long offset, unsigned long long len) { - return sys_fadvise64_64(fd, offset, len, advice); + return ksys_fadvise64_64(fd, offset, len, advice); } #ifdef CONFIG_MMU diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c index 57dc231a0709..9220dcde7520 100644 --- a/arch/xtensa/mm/cache.c +++ b/arch/xtensa/mm/cache.c @@ -127,7 +127,7 @@ EXPORT_SYMBOL(copy_user_highpage); void flush_dcache_page(struct page *page) { - struct address_space *mapping = page_mapping(page); + struct address_space *mapping = page_mapping_file(page); /* * If we have a mapping but the page is not mapped to user-space diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 1b6418407467..026211e7ab09 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -21,7 +21,6 @@ #include <platform/simcall.h> #define SIMDISK_MAJOR 240 -#define SECTOR_SHIFT 9 #define SIMDISK_MINORS 1 #define MAX_SIMDISK_COUNT 10 |