189f188d29
Since the PMEM driver establishes ioremaps on the fly for on demand devices it is possible for the virtual address space to become quickly fragmented. For such devices, pre-reserve the virtual address range and only set up page table mappings when required. CRs-Fixed: 299510 Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>
26 lines
555 B
C
26 lines
555 B
C
#ifdef CONFIG_MMU
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/* the upper-most page table pointer */
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extern pmd_t *top_pmd;
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#define TOP_PTE(x) pte_offset_kernel(top_pmd, x)
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static inline pmd_t *pmd_off_k(unsigned long virt)
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{
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return pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt);
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}
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struct mem_type;
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const struct mem_type *get_mem_type(unsigned int type);
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extern void __flush_dcache_page(struct address_space *mapping, struct page *page);
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#endif
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struct map_desc;
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void __init bootmem_init(void);
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void arm_mm_memblock_reserve(void);
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void __init create_mapping(struct map_desc *md);
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