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picture1_Confidential Powerpoint 73040 | Aarch64 Kernel Memory Management


picture2_Confidential Powerpoint 73040 | Aarch64 Kernel Memory Management picture3_Confidential Powerpoint 73040 | Aarch64 Kernel Memory Management

 135x       Filetype PPTX       File size 0.63 MB       Source: community.nxp.com


File: Confidential Powerpoint 73040 | Aarch64 Kernel Memory Management
Kernel virtual memory layout MODULES_VADDR (VA_START) KIMAGE_VADDR + TEXT_OFFSET VMEMMAP_START _phys_to_virt(memblock_start_of_DRAM()) 2 CONFIDENTIAL AND PROPRIETARY Kernel variable and configure • VA_BITS = 48 • VA_START = 0xffff000000000000 • PAGE_OFFSET = ...

icon picture PPTX Filetype Power Point PPTX | Posted on 31 Aug 2022 | 2 years ago
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...Kernel virtual memory layout modules vaddr va start kimage text offset vmemmap phys to virt memblock of dram confidential and proprietary variable configure bits xffff page x i mxqm qxp passed in by u boot get from scfw module end define unsigned long kimg voffset ddr on xbfff fff g f configurations is who usable api sc rm memreg info ffff bl tee xfe mxq there s memblocks the hole used atf m shm blue xdfff android auto car no cma xc blocks uboot swiotlb xcff add dsp after below settings rpmsg mb red vpu reserved dts black allocation kmalloc for small chunks go through slxb directly call vmalloc dma alloc pages large continue size ion continuous e physical not z slub driver required be place slab slob specific range a p described next allocators managed drivers usage like gpu buddy allocator video camera buffers target allocating big physically contiguous integrated with gi how it works ve se at time ay mo t r when initializes released ak y migrate type can movable normal examples em an...
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