Flush_icache_range

Author: lsxf

August undefined, 2024

Webupdate a global variable __dcache_flags. The two functions __flush_cache_user_range () and __clean_dcache_area_pou () are modified to skip an unnecessary code execution … WebFeb 27, 2024 · Add set_ptes () and update_mmu_cache_range (). It would probably be more efficient to implement __update_tlb () by flushing the entire folio instead of calling it __update_tlb () N times, but I'll leave that for someone who understands the architecture better. Signed-off-by: Matthew Wilcox (Oracle)

LKML: "Arnd Bergmann": Re: [PATCH 20/21] ARM: dma-mapping: …

WebMar 15, 2024 · - flush_icache_range (addr, addr + page_size (page)); - set_bit (PG_arch_1, &page->flags); /* mark page as clean */ + flush_icache_range (addr, addr … Webflush_cache_range () is primarily used on VIVT caches before changing the mapping and should not really be implemented on arm64. I don't recall why we still have the I-cache invalidation, possibly for the ASID-tagged VIVT I-cache case, though we should have a specific check for this. can airsoft bbs be reused

> flush_icache_range() - LKML.ORG

WebMay 10, 2024 · On Tue, May 12, 2024 at 04:00:26PM -0700, Palmer Dabbelt wrote: > Reviewed-by: Palmer Dabbelt > Acked-by: Palmer Dabbelt > > Were you trying to get these all in at once, or do you want me to take it into > my tree? Except for the small fixups at the beginning of the … WebMay 11, 2024 · To be consistent with other functions with similar names and functionality in cacheflush.h, cache.S, and cachetlb.rst, change to specify the range in terms of start and end, as opposed to start and size. No functional change intended. can airsoft break glass

cacheflush.h - arch/arm/include/asm/cacheflush.h - Bootlin

Subject [PATCH v4 30/36] mm: Rationalise flush_icache_pages() and flush …

Webcacheflush.h - arch/arm/include/asm/cacheflush.h - Linux source code (v6.2.2) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the … Web* flush_user_range (start, end, flags) * * Clean and invalidate a range of cache entries in the * specified address space before a change of page tables. * - start - user start address (inclusive, page aligned) * - end - user end address (exclusive, page aligned) * - flags - vma->vm_flags field * * coherent_kern_range (start, end) * can air roots be trimmedWebMar 28, 2014 · Here we are flushing a specific range of (user) virtual addresses from the cache. After running, there will be no entries in the cache for 'vma->vm_mm' for virtual addresses in the range 'start' to 'end-1'. You can also check implementation of the function - http://lxr.free-electrons.com/ident?a=sh;i=flush_cache_range can a irrevocable trust be modified

"WebMar 29, 2024 · flush_icache_range() takes a range of addresses to flush. In flush_coherent_icache() we implement an optimisation for CPUs where we know we don't actually have to flush the whole range, we just need to do a single icbi. However we still execute the icbi on the user address of the start of the range we're flushing. " - Flush_icache_range

Flush_icache_range

LKML: "Matthew Wilcox (Oracle)": [PATCH v4 12/36] ia64: …

Webvoid flush_icache_range (unsigned long start, unsigned long end) When the kernel stores into addresses that it will execute out of (eg when loading modules), this function is … WebApr 4, 2024 · flush_icache_range () flush_icache_all () sbi_remote_fence_i () for CONFIG_RISCV_SBI case __sbi_rfence () Since sbi isn't initialized, so NULL deference! Here is a typical panic log: [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 0.000000] Oops [#1] [ 0.000000] Modules linked in:

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WebLinux-mm Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v4 00/36] New page table range API @ 2024-03-15 5:14 Matthew Wilcox (Oracle) 2024-03-15 5:14 ` [PATCH v4 01/36] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() Matthew Wilcox (Oracle) ` (35 more replies) 0 siblings, 36 … Web* [PATCH 1/7] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() 2024-02-11 3:39 [PATCH 0/7] New arch interfaces for manipulating multiple pages Matthew Wilcox (Oracle) @ 2024-02-11 3:39 ` Matthew Wilcox (Oracle) 2024-02-11 3:39 ` [PATCH 2/7] mm: Add generic flush_icache_pages() and documentation Matthew Wilcox …

WebMar 15, 2024 · @@ -53,7 +53,7 @@ extern void flush_icache_range(unsigned long start, unsigned long end); #define flush_icache_user_range flush_icache_range void flush_icache_pages(struct vm_area_struct *vma, struct page *page, unsigned int nr);-#define flush_icache_page(vma, page) flush_icache_pages(vma, page, 1) +#define … WebNov 12, 2024 · > + * flush_icache_range: Write any modified data cache blocks out to memory > + * and invalidate the corresponding blocks in the instruction cache > + * …

WebIn theory, we can @@ -89,9 +89,9 @@ static inline void flush_icache_range(unsigned long start, unsigned long end) * the patching operation, so we don't need extra IPIs here anyway. * In which case, add a KGDB-specific bodge and return early. WebFrom: Thomas Bogendoerfer To: [email protected], [email protected] Subject: [PATCH 3/3] MIPS: mm: Remove local_cache_flush_page Date: Mon, 3 Apr 2024 11:41:12 +0200 [thread overview] Message-ID: <[email protected]> () In-Reply-To: …

WebMay 24, 2016 · It's impossible a programmer > fixed a common bug on only one platform but leave others unchanged. flush_cache_range () is primarily used on VIVT caches before changing the mapping and should not really be implemented on arm64.

WebThis series first cleans up the cacheflush implementations, largely by switching as much as possible to the asm-generic version after a few preparations, then moves the misnamed … fisher motorsailer for sale usaWebMay 15, 2024 · sort out the flush_icache_range mess v2 Christoph Hellwig [PATCH 03/29] powerpc: unexport flush_icache_user_r... Christoph Hellwig [PATCH 04/29] unicore32: remove flush_cache_user_ra... Christoph Hellwig [PATCH 01/29] arm: fix the flush_icache_range argum... Christoph Hellwig [PATCH 02/29] nds32: unexport … fisher motorsailer for sale canadaWebMar 15, 2024 · All the functionality of flush_icache_page can be implemented in - flush_dcache_page and update_mmu_cache. In the future, the hope + flush_dcache_page and update_mmu_cache_range. In the future, the hope is to remove this interface completely. The final category of APIs is for I/O to deliberately aliased address fisher motor sailersWebRoughly “cache flushing” means writing what’s in the cache out to memory (or simply cache data goes to memory) whereas “cache invalidating” means subsequently assuming all … can airsoft guns be lethalWebMar 31, 2024 · only had one cacheflush instruction that flushes the dcache and invalidates the icache at the same time. So flush_icache_range () actually does both and flush_dcache_page () instead just marks the page as dirty to ensure flush_icache_range () does not get skipped after a writing a page from the kernel. fisher motors bulawayoWeb* flush_dcache_page is used when the kernel has written to the page * cache page at virtual address page->virtual. * * If this page isn't mapped (ie, page_mapping == NULL), or it … fisher motorsailer for sale australiaWebMay 24, 2016 · It's impossible a programmer > fixed a common bug on only one platform but leave others unchanged. flush_cache_range () is primarily used on VIVT caches before … fisher motor sailers for sale usa