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OpenCloudOS-Kernel/arch/arm64/mm/mm.h

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arm64: MMU fault handling and page table management This patch adds support for the handling of the MMU faults (exception entry code introduced by a previous patch) and page table management. The user translation table is pointed to by TTBR0 and the kernel one (swapper_pg_dir) by TTBR1. There is no translation information shared or address space overlapping between user and kernel page tables. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-05 19:49:27 +08:00
extern void __init bootmem_init(void);
arm64: Call swiotlb_init() instead of swiotlb_init_with_default_size() Following commit 74838b7 (swiotlb: add the late swiotlb initialization function with iotlb memory) the swiotlb_init_with_default_size() is a static function. This patch changes the arm64 code to call swiotlb_init() instead and use the default size of 64MB. It is assumed that AArch64 platforms have enough RAM to afford the pre-allocated swiotlb memory. It also removes the #ifdef around this call since CONFIG_SWIOTLB is always enabled. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2012-10-03 21:35:18 +08:00
extern void __init arm64_swiotlb_init(void);