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authorIngo Molnar <mingo@elte.hu>2008-12-12 05:59:39 -0500
committerIngo Molnar <mingo@elte.hu>2008-12-12 05:59:39 -0500
commitfd10902797fc9d6abaf55d9c2e3c6698c90b10c7 (patch)
tree0bc15b8b967e6f0973387e7c81f5b0dc9ce44e75 /arch/mips/pci/pci.c
parent5b3eec0c80038c8739ccd465b897a35c0dff1cc4 (diff)
parent8b1fae4e4200388b64dd88065639413cb3f1051c (diff)
Merge commit 'v2.6.28-rc8' into x86/irq
Diffstat (limited to 'arch/mips/pci/pci.c')
-rw-r--r--arch/mips/pci/pci.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index a377e9d2d029..62cae740e250 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -354,6 +354,30 @@ EXPORT_SYMBOL(PCIBIOS_MIN_IO);
354EXPORT_SYMBOL(PCIBIOS_MIN_MEM); 354EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
355#endif 355#endif
356 356
357int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
358 enum pci_mmap_state mmap_state, int write_combine)
359{
360 unsigned long prot;
361
362 /*
363 * I/O space can be accessed via normal processor loads and stores on
364 * this platform but for now we elect not to do this and portable
365 * drivers should not do this anyway.
366 */
367 if (mmap_state == pci_mmap_io)
368 return -EINVAL;
369
370 /*
371 * Ignore write-combine; for now only return uncached mappings.
372 */
373 prot = pgprot_val(vma->vm_page_prot);
374 prot = (prot & ~_CACHE_MASK) | _CACHE_UNCACHED;
375 vma->vm_page_prot = __pgprot(prot);
376
377 return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
378 vma->vm_end - vma->vm_start, vma->vm_page_prot);
379}
380
357char * (*pcibios_plat_setup)(char *str) __devinitdata; 381char * (*pcibios_plat_setup)(char *str) __devinitdata;
358 382
359char *__devinit pcibios_setup(char *str) 383char *__devinit pcibios_setup(char *str)