ARM: pgtable: move pgprot functions to one place
Rather than scattering them throughout the file, group them together. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -219,6 +219,27 @@ extern pgprot_t pgprot_kernel;
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#define __PAGE_READONLY __pgprot(_L_PTE_DEFAULT | L_PTE_USER)
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#define __PAGE_READONLY_EXEC __pgprot(_L_PTE_DEFAULT | L_PTE_USER | L_PTE_EXEC)
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#define __pgprot_modify(prot,mask,bits) \
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__pgprot((pgprot_val(prot) & ~(mask)) | (bits))
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#define pgprot_noncached(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED)
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#define pgprot_writecombine(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE)
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#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
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#define pgprot_dmacoherent(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
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#define __HAVE_PHYS_MEM_ACCESS_PROT
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struct file;
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extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
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unsigned long size, pgprot_t vma_prot);
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#else
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#define pgprot_dmacoherent(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)
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#endif
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#endif /* __ASSEMBLY__ */
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/*
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@ -322,28 +343,6 @@ PTE_BIT_FUNC(mkyoung, |= L_PTE_YOUNG);
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static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
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#define __pgprot_modify(prot,mask,bits) \
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__pgprot((pgprot_val(prot) & ~(mask)) | (bits))
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/*
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* Mark the prot value as uncacheable and unbufferable.
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*/
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#define pgprot_noncached(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED)
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#define pgprot_writecombine(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE)
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#ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
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#define pgprot_dmacoherent(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_BUFFERABLE)
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#define __HAVE_PHYS_MEM_ACCESS_PROT
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struct file;
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extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
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unsigned long size, pgprot_t vma_prot);
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#else
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#define pgprot_dmacoherent(prot) \
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__pgprot_modify(prot, L_PTE_MT_MASK|L_PTE_EXEC, L_PTE_MT_UNCACHED)
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#endif
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#define pmd_none(pmd) (!pmd_val(pmd))
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#define pmd_present(pmd) (pmd_val(pmd))
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#define pmd_bad(pmd) (pmd_val(pmd) & 2)
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