linux-yocto - Yocto Linux Embedded kernel

Age	Commit message (Expand)	Author
2019-06-19	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	Thomas Gleixner
2015-03-04	devicetree: Add TI-NSPIRE USB OTG support to device tree	Daniel Tang
2013-06-21	arm: Add device trees for TI-Nspire hardware	Daniel Tang

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _PARISC_CACHEFLUSH_H #define _PARISC_CACHEFLUSH_H #include <linux/mm.h> #include <linux/uaccess.h> #include <asm/tlbflush.h> /* The usual comment is "Caches aren't brain-dead on the <architecture>". * Unfortunately, that doesn't apply to PA-RISC. */ /* Internal implementation */ void flush_data_cache_local(void *); /* flushes local data-cache only */ void flush_instruction_cache_local(void *); /* flushes local code-cache only */ #ifdef CONFIG_SMP void flush_data_cache(void); /* flushes data-cache only (all processors) */ void flush_instruction_cache(void); /* flushes i-cache only (all processors) */ #else #define flush_data_cache() flush_data_cache_local(NULL) #define flush_instruction_cache() flush_instruction_cache_local(NULL) #endif #define flush_cache_dup_mm(mm) flush_cache_mm(mm) void flush_user_icache_range_asm(unsigned long, unsigned long); void flush_kernel_icache_range_asm(unsigned long, unsigned long); void flush_user_dcache_range_asm(unsigned long, unsigned long); void flush_kernel_dcache_range_asm(unsigned long, unsigned long); void purge_kernel_dcache_range_asm(unsigned long, unsigned long); void flush_kernel_dcache_page_asm(void *); void flush_kernel_icache_page(void *); /* Cache flush operations */ void flush_cache_all_local(void); void flush_cache_all(void); void flush_cache_mm(struct mm_struct *mm); #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE void flush_kernel_dcache_page_addr(void *addr); static inline void flush_kernel_dcache_page(struct page *page) { flush_kernel_dcache_page_addr(page_address(page)); } #define flush_kernel_dcache_range(start,size) \ flush_kernel_dcache_range_asm((start), (start)+(size)); void flush_kernel_vmap_range(void *vaddr, int size); void invalidate_kernel_vmap_range(void *vaddr, int size); #define flush_cache_vmap(start, end) flush_cache_all() #define flush_cache_vunmap(start, end) flush_cache_all() #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 extern void flush_dcache_page(struct page *page); #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) #define flush_dcache_mmap_lock_irqsave(mapping, flags) \ xa_lock_irqsave(&mapping->i_pages, flags) #define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ xa_unlock_irqrestore(&mapping->i_pages, flags) #define flush_icache_page(vma,page) do { \ flush_kernel_dcache_page(page); \ flush_kernel_icache_page(page_address(page)); \ } while (0) #define flush_icache_range(s,e) do { \ flush_kernel_dcache_range_asm(s,e); \ flush_kernel_icache_range_asm(s,e); \ } while (0) #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ flush_cache_page(vma, vaddr, page_to_pfn(page)); \ memcpy(dst, src, len); \ flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ do { \ flush_cache_page(vma, vaddr, page_to_pfn(page)); \ memcpy(dst, src, len); \ } while (0) void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn); void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); /* defined in pacache.S exported in cache.c used by flush_anon_page */ void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr); #define ARCH_HAS_FLUSH_ANON_PAGE static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr) { if (PageAnon(page)) { flush_tlb_page(vma, vmaddr); preempt_disable(); flush_dcache_page_asm(page_to_phys(page), vmaddr); preempt_enable(); } } #include <asm/kmap_types.h> #define ARCH_HAS_KMAP static inline void *kmap(struct page *page) { might_sleep(); return page_address(page); } static inline void kunmap(struct page *page) { flush_kernel_dcache_page_addr(page_address(page)); } static inline void *kmap_atomic(struct page *page) { preempt_disable(); pagefault_disable(); return page_address(page); } static inline void __kunmap_atomic(void *addr) { flush_kernel_dcache_page_addr(addr); pagefault_enable(); preempt_enable(); } #define kmap_atomic_prot(page, prot) kmap_atomic(page) #define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn)) #endif /* _PARISC_CACHEFLUSH_H */