Flush_icache_range

Author: jnsi

August undefined, 2024

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) 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:

cacheflush(2) - Linux man page - die.net

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 called. ... All the functionality of flush_icache_page can be implemented in flush_dcache_page and update_mmu_cache. In the future, the hope is to remove this interface ... Webcacheflush() flushes the contents of the indicated cache(s) for the user addresses in the range addr to (addr+nbytes-1). cache may be one of: ICACHE Flush the instruction … green heather musical

Documentation – Arm Developer

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 … 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. 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 … green heather t shirt

[xtensa-cvscommit] linux/arch/xtensa/mm cache.c,NONE,1.1 ... - SourceForge

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

Webflush_icache_user_range.) The reason for doing this is that when flush_icache_page is called from do_no_page or do_swap_page, I want to be able to do the flush … 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 … greenheath international ltdWebMay 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. greenheath ltd

"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

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

WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 1/3] MIPS: mm: Remove unused *cache_page_indexed flush functions @ 2024-04-03 9:41 Thomas Bogendoerfer 2024-04-03 9:41 ` [PATCH 2/3] MIPS: Remove no longer used ide.h Thomas Bogendoerfer ` (2 more replies) 0 siblings, 3 replies; 6+ messages in thread From: … 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 …

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Webflush_cache_range (struct mm_struct *mm, unsigned long start, unsigned long end); flush_tlb_range (struct mm_struct *mm, unsigned long start, unsigned long end); A … WebJan 17, 2003 · - If dcaches are not writeback, dhwbi equals dhi, etc. - When flushing a range in the icache, we have to first writeback the dcache for the same range, so new ifetches will see any data that was dirty in the dcache. */ /* XTFIXME: Compare against arch/mips/mm/r4xx0.c, which has extensive tests before deciding to flush anything.

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 … WebFeb 15, 2024 · ia64: Implement the new page table range API Add set_ptes (), update_mmu_cache_range () and flush_dcache_folio (). PG_arch_1 (aka PG_dcache_clean) becomes a per-folio flag instead of per-page, which makes arch_dma_mark_clean () and mark_clean () a little more exciting.

Webflush_cache_range (struct mm_struct *mm, unsigned long start, unsigned long end); flush_tlb_range (struct mm_struct *mm, unsigned long start, unsigned long end); A change to a particular range of user addresses in the address space described by the mm_struct passed is occurring. WebGitiles. Code Review Sign In. nv-tegra.nvidia.com / linux-3.10 / c60afe1014dc4b8d2211fb6cc9dd08ebab31d00b / . / include / asm-mn10300 / cacheflush.h

WebMar 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.

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) * flutter show remaining datetimeWebFrom: 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: … flutter show password buttonWeb* [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 … greenheath lakenheathWebcacheflush () flushes the contents of the indicated cache (s) for the user addresses in the range addr to (addr+nbytes-1). cache may be one of: ICACHE Flush the instruction … flutter show image full screenWeb* 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 … flutter show popup dialogWebNov 12, 2024 · > + * flush_icache_range: Write any modified data cache blocks out to memory > + * and invalidate the corresponding blocks in the instruction cache > + * … flutter show password iconWebMar 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 greenheath road