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2024-10-16vdso: Introduce vdso/page.hVincenzo Frascino1-6/+1
The VDSO implementation includes headers from outside of the vdso/ namespace. Introduce vdso/page.h to make sure that the generic library uses only the allowed namespace. Signed-off-by: Vincenzo Frascino <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> # m68k Link: https://lore.kernel.org/all/[email protected]
2024-03-06arch: define CONFIG_PAGE_SIZE_*KB on all architecturesArnd Bergmann1-1/+1
Most architectures only support a single hardcoded page size. In order to ensure that each one of these sets the corresponding Kconfig symbols, change over the PAGE_SHIFT definition to the common one and allow only the hardware page size to be selected. Acked-by: Guo Ren <[email protected]> Acked-by: Heiko Carstens <[email protected]> Acked-by: Stafford Horne <[email protected]> Acked-by: Johannes Berg <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-02-09mm, arch: add generic implementation of pfn_valid() for FLATMEMMike Rapoport (IBM)1-9/+0
Every architecture that supports FLATMEM memory model defines its own version of pfn_valid() that essentially compares a pfn to max_mapnr. Use mips/powerpc version implemented as static inline as a generic implementation of pfn_valid() and drop its per-architecture definitions. [[email protected]: fix the generic pfn_valid()] Link: https://lkml.kernel.org/r/[email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Mike Rapoport (IBM) <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Acked-by: Guo Ren <[email protected]> [csky] Acked-by: Huacai Chen <[email protected]> [LoongArch] Acked-by: Stafford Horne <[email protected]> [OpenRISC] Acked-by: Michael Ellerman <[email protected]> [powerpc] Reviewed-by: David Hildenbrand <[email protected]> Tested-by: Conor Dooley <[email protected]> Cc: Brian Cain <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Greg Ungerer <[email protected]> Cc: Helge Deller <[email protected]> Cc: Huacai Chen <[email protected]> Cc: Matt Turner <[email protected]> Cc: Max Filippov <[email protected]> Cc: Michal Simek <[email protected]> Cc: Palmer Dabbelt <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Rich Felker <[email protected]> Cc: Russell King <[email protected]> Cc: Thomas Bogendoerfer <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: WANG Xuerui <[email protected]> Cc: Yoshinori Sato <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
2020-04-10mm/vma: define a default value for VM_DATA_DEFAULT_FLAGSAnshuman Khandual1-2/+1
There are many platforms with exact same value for VM_DATA_DEFAULT_FLAGS This creates a default value for VM_DATA_DEFAULT_FLAGS in line with the existing VM_STACK_DEFAULT_FLAGS. While here, also define some more macros with standard VMA access flag combinations that are used frequently across many platforms. Apart from simplification, this reduces code duplication as well. Signed-off-by: Anshuman Khandual <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Reviewed-by: Vlastimil Babka <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Vineet Gupta <[email protected]> Cc: Russell King <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Mark Salter <[email protected]> Cc: Guo Ren <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Brian Cain <[email protected]> Cc: Tony Luck <[email protected]> Cc: Michal Simek <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Burton <[email protected]> Cc: Nick Hu <[email protected]> Cc: Ley Foon Tan <[email protected]> Cc: Jonas Bonn <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Paul Walmsley <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Rich Felker <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Guan Xuetao <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Chris Zankel <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Linus Torvalds <[email protected]>
2019-06-25nios2: use the generic uncached segment support in dma-directChristoph Hellwig1-6/+0
Stop providing our own arch alloc/free hooks and just expose the segment offset and use the generic dma-direct allocator. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Ley Foon Tan <[email protected]>
2016-12-13nios2: Convert pfn_valid to static inlineTobias Klauser1-2/+9
When compiling with 'W=1' warnings such as the following occur all over the place: ./include/linux/pfn.h:21:22: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] which is due to ARCH_PFN_OFFSET being 0 by default (if CONFIG_NIOS2_MEM_BASE is not changed in the Kconfig). Fix these warnings by making pfn_valid a static inline function. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Ley Foon Tan <[email protected]>
2016-12-13nios2: Extend !__ASSEMBLY__ section in asm/page.hTobias Klauser1-2/+2
Some C-only definition from nios2 asm/page.h are exposed to assembly code. Extend the !__ASSEMBLY__ section to prevent this. Signed-off-by: Tobias Klauser <[email protected]> Acked-by: Ley Foon Tan <[email protected]>
2016-04-22nios2: use correct void* return type for page_to_virt()Ard Biesheuvel1-1/+1
To align with other architectures, the expression produced by expanding the macro page_to_virt() should be of type void*, since it returns a virtual address. Fix that, and also fix up an instance where page_to_virt was expected to return 'unsigned long', and drop another instance that was entirely unused (page_to_bus) Acked-by: Andrew Morton <[email protected]> Signed-off-by: Ard Biesheuvel <[email protected]> Signed-off-by: Will Deacon <[email protected]>
2014-12-08nios2: Remove unused extern declaration of shm_align_maskTobias Klauser1-2/+0
shm_align_mask is not defined/used on nios2, thus there is no need to declare it. Signed-off-by: Tobias Klauser <[email protected]> Acked-by: Ley Foon Tan <[email protected]>
2014-12-08nios2: Memory managementLey Foon Tan1-0/+111
This patch contains the initialisation of the memory blocks, MMU attributes and the memory map. Signed-off-by: Ley Foon Tan <[email protected]>
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