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Catalin Marinas d50314a6b0 arm64: Create non-empty ZONE_DMA when DRAM starts above 4GB ... ZONE_DMA is created to allow 32-bit only devices to access memory in the absence of an IOMMU. On systems where the memory starts above 4GB, it is expected that some devices have a DMA offset hardwired to be able to access the bottom of the memory. Linux currently supports DT bindings for the DMA offsets but they are not (easily) available early during boot. This patch tries to guess a DMA offset and assumes that ZONE_DMA corresponds to the 32-bit mask above the start of DRAM. Fixes: 2d5a5612bc (arm64: Limit the CMA buffer to 32-bit if ZONE_DMA) Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Mark Salter <msalter@redhat.com> Tested-by: Mark Salter <msalter@redhat.com> Tested-by: Anup Patel <anup.patel@linaro.org>		11 years ago
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Makefile	arm64: mm: Optimise tlb flush logic where we have >4K granule	11 years ago
cache.S	arm64: mm: use inner-shareable barriers for inner-shareable maintenance	11 years ago
context.c	arm64: Process management	13 years ago
copypage.c	arm64: export __cpu_{clear,copy}_user_page functions	11 years ago
dma-mapping.c	arm64: Clean up the default pgprot setting	11 years ago
extable.c	arm64: MMU fault handling and page table management	13 years ago
fault.c	Revert "arm64: Introduce execute-only page access permissions"	11 years ago
flush.c	arm64: mm: Make icache synchronisation logic huge page aware	11 years ago
hugetlbpage.c	hugetlb: restrict hugepage_migration_support() to x86_64	11 years ago
init.c	arm64: Create non-empty ZONE_DMA when DRAM starts above 4GB	11 years ago
ioremap.c	arm64: add early_ioremap support	11 years ago
mm.h	arm64: Remove __flush_dcache_page()	12 years ago
mmap.c	mm: remove free_area_cache	12 years ago
mmu.c	- Optimised assembly string/memory routines (based on the AArch64 Cortex	11 years ago
pgd.c	arm64: simplify pgd_alloc	11 years ago
proc-macros.S	arm64: mm: use ubfm for dcache_line_size	11 years ago
proc.S	arm64: mm: use inner-shareable barriers for inner-shareable maintenance	11 years ago