From: Kristoffer Glembo <kristoffer@xxxxxxxxxxx> Date: Fri, 09 Oct 2009 16:02:14 +0200 > Currently in io_32.h page_to_phys is defined as: > > #define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT) > > Should it not be: > > #define page_to_phys(page) ((((page) - mem_map) << PAGE_SHIFT) + > #phys_base) > > or perhaps: > > #define page_to_phys(page) ((dma_addr_t)page_to_pfn(page) << > #PAGE_SHIFT) Sparc 32-bit doesn't offset the mem_map at phys_base. What is offset by phys_base is what gets mapped at PAGE_OFFSET virtually. That's why the things that translate between virtual and physical addresses do take phys_base into account. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
