kernel.git/arch/microblaze/include/asm/pgtable.h, branch linux-4.19.y

mm: make the __PAGETABLE_PxD_FOLDED defines non-empty

2018-12-29T12:37:57Z

[ Upstream commit a8874e7e8a8896f2b6c641f4b8e2473eafd35204 ] Change the currently empty defines for __PAGETABLE_PMD_FOLDED, __PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1. This makes it possible to use __is_defined() to test if the preprocessor define exists. Acked-by: Kirill A. Shutemov Signed-off-by: Martin Schwidefsky Signed-off-by: Sasha Levin

microblaze: remove consistent_sync and consistent_sync_page

2018-07-20T12:29:54Z

Both unused. Signed-off-by: Christoph Hellwig Signed-off-by: Michal Simek

microblaze: use generic dma_noncoherent_ops

2018-07-20T12:29:47Z

Switch to the generic noncoherent direct mapping implementation. This removes the direction-based optimizations in sync_{single,sg}_for_{cpu,device} which were marked untestested and do not match the usually very well tested {un,}map_{single,sg} implementations. Signed-off-by: Christoph Hellwig Signed-off-by: Michal Simek

microblaze: Provide pgprot_device/writecombine macros for nommu

2018-03-19T14:33:05Z

These macros are required for generic mmap.c implementation created by: commit f719582435af ("PCI: Add pci_mmap_resource_range() and use it for ARM64") which Microblaze is going to use. Reported-by: kbuild test robot Suggested-by: David Woodhouse Signed-off-by: Michal Simek

mm: make FIRST_USER_ADDRESS unsigned long on all archs

2015-02-12T01:06:03Z

LKP has triggered a compiler warning after my recent patch "mm: account pmd page tables to the process": mm/mmap.c: In function 'exit_mmap': >> mm/mmap.c:2857:2: warning: right shift count >= width of type [enabled by default] The code: > 2857 WARN_ON(mm_nr_pmds(mm) > 2858 round_up(FIRST_USER_ADDRESS, PUD_SIZE) >> PUD_SHIFT); In this, on tile, we have FIRST_USER_ADDRESS defined as 0. round_up() has the same type -- int. PUD_SHIFT. I think the best way to fix it is to define FIRST_USER_ADDRESS as unsigned long. On every arch for consistency. Signed-off-by: Kirill A. Shutemov Reported-by: Wu Fengguang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

microblaze: define __PAGETABLE_PMD_FOLDED

2015-02-12T01:06:03Z

Microblaze uses custom implementation of PMD folding, but doesn't define __PAGETABLE_PMD_FOLDED, which generic code expects to see. Let's fix it. Defining __PAGETABLE_PMD_FOLDED will drop out unused __pmd_alloc(). It also fixes problems with recently-introduced pmd accounting. Signed-off-by: Kirill A. Shutemov Reported-by: Guenter Roeck Tested-by: Guenter Roeck Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

microblaze: drop _PAGE_FILE and pte_file()-related helpers

2015-02-10T22:30:32Z

We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov Cc: Michal Simek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

microblaze: Fix mmap for cache coherent memory

2014-12-17T11:59:59Z

When running in non-cache coherent configuration the memory that was allocated with dma_alloc_coherent() has a custom mapping and so there is no 1-to-1 relationship between the kernel virtual address and the PFN. This means that virt_to_pfn() will not work correctly for those addresses and the default mmap implementation in the form of dma_common_mmap() will map some random, but not the requested, memory area. Fix this by providing a custom mmap implementation that looks up the PFN from the page table rather than using virt_to_pfn. Signed-off-by: Lars-Peter Clausen Signed-off-by: Michal Simek

consolidate io_remap_pfn_range definitions

2013-06-29T08:46:35Z

Signed-off-by: Al Viro

microblaze: Remove PAGE properties duplication

2012-10-04T12:52:55Z

HWEXEC and HWWRITE is define above. Remove them. Signed-off-by: Michal Simek