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For_each_mem_pfn_range

WebPatch 1 remain the memblock_next_valid_pfn when CONFIG_HAVE_ARCH_PFN_VALID is enabled Patch 2 optimizes the memblock_next_valid_pfn() Patch 3~5 optimizes the early_pfn_valid(), I have to split it into parts because the changes are located across subsystems. I tested the pfn loop process in memmap_init(), the same as before. Web* for_each_free_mem_pfn_range_in_zone_from - iterate through zone specific: 313 * free memblock areas from a given point: 314 * @i: u64 used as loop variable: 315 * @zone: zone in which all of the memory blocks reside: 316 * @p _start: ptr to phys_addr_t for start address of the range, can be %NULL: 317

[RFC PATCH 1/2] mm/memblock: introduce …

WebThis causes shrinking node 0's pfn range because it is calculated by the address range of memblock.memory. So some of struct pages in the gap range are left uninitialized. We have a function zero_resv_unavail() which does zeroing the struct pages outside memblock.memory, but currently it covers only the reserved Webmax_low_pfn = max_pfn = memblock_end_of_DRAM () >> PAGE_SHIFT; min_low_pfn = MEMORY_START >> PAGE_SHIFT; #ifdef CONFIG_HIGHMEM max_low_pfn = … maricopa county superior court search records https://patriaselectric.com

[PATCH v25 0/2] Virtio-balloon: support free page reporting

WebMar 9, 2024 · * On a multi-node machine a per-node cma area is allocated on each node. Following gigantic hugetlb allocation are using the first available numa node if the mask … WebMar 7, 2024 · + for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid) {/* * The first 1MB is not reported as TDX convertible memory. * Although the first 1MB is always reserved and won't end up @@ -444,7 +445,7 @@ static int build_tdx_memlist(struct list_head *tmb_list) * memblock has already guaranteed they … WebDec 10, 2024 · 7952 * @max_zone_pfn: an array of max PFNs for each zone 7953 * 7954 * This will call free_area_init_node() for each active node in the system. 7955 * Using the page ranges provided by memblock_set_node(), the size of each 7956 * zone in each node and their holes is calculated. If the maximum PFN maricopa county superior court se

[PATCH v3 0/5] optimize memblock_next_valid_pfn and early_pfn…

Category:[PATCH -v3 00/14] x86, mm: init_memory_mapping cleanup

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For_each_mem_pfn_range

[PATCH v25 0/2] Virtio-balloon: support free page reporting

WebFeb 19, 2024 · /** * for_each_mem_pfn_range - early memory pfn range iterator * @i: an integer used as loop variable * @nid: node selector, %MAX_NUMNODES for all nodes * @p_start: ptr to ulong for start pfn of the range, can be %NULL * @p_end: ptr to ulong for end pfn of the range, can be %NULL * @p_nid: ptr to int for nid of the range, can be …

For_each_mem_pfn_range

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Webforeach component + npm package. Latest version: 2.0.6, last published: a year ago. Start using foreach in your project by running `npm i foreach`. There are 132 other projects in … WebChangeLog: v24->v25: - mm: change walk_free_mem_block to return 0 (instead of true) on completing the report, and return a non-zero value from the callabck, which stops the reporting.

WebNov 7, 2024 · Drivers wanting to export some pages to userspace do it by using mmap interface and a combination of 1) pgprot_noncached () 2) io_remap_pfn_range () or … WebSep 16, 2015 · Drivers wanting to export some pages to userspace do it by using mmap interface and a combination of. 1) pgprot_noncached () 2) io_remap_pfn_range () or remap_pfn_range () or vm_insert_pfn () With PAT support, a new API pgprot_writecombine is being added. So, drivers can continue to use the above …

WebFeb 17, 2016 · Initially, we tried to map this physical address range into kernel space using ioremap, but that appears to mark the region uncacheable, and the access speed is horrible, even if we try to use memcpy to make it a bounce buffer. We use /dev/mem to map this also into userspace, and I've timed memcpy as being around 70MB/sec. WebThe first (remap_pfn_range) is intended for situations where pfn refers to actual system RAM, while io_remap_page_range should be used when phys_addr points to I/O memory. In practice, the two functions are …

WebNov 7, 2024 · map pfn ram range req uncached-minus for [mem 0xABC-0xCBA], got write-back. In my understanding, write-back is cached memory. But I need uncached memory for the DMA operation. The Code (only showing the important parts): User App.

Webfor_each_mem_pfn_range() for_each_memblock() for_each_memblock_type() Back to MM init Reserve used areas - memblock_reserve() Kernel, initrd, firmware pages Detect and register physical memory - memblock_add() Available banks, NUMA topology maricopa county superior court self-helpWebJan 23, 2024 · Next, to demonstrate the use of PowerShell foreach file in a directory, the script below will read each BackupState.txt file created in Example 1. Recursively find all … natural home zoom backgroundWebptr to ulong for start pfn of the range, can be NULL p_end ptr to ulong for end pfn of the range, can be NULL p_nid ptr to int for nid of the range, can be NULL. Description. … natural honey combWebFrom: Mike Rapoport To: Andrew Morton Cc: Andy Lutomirski , Benjamin Herrenschmidt … maricopa county superior court set asideWebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [RFC PATCH 1/2] mm/memblock: introduce for_each_mem_pfn_range_rev() @ 2024-02-11 2:18 Wei … maricopa county superior court sentencingWebNov 28, 2012 · - * [0 to max_low_pfn) and [4GB to max_pfn) because of possible memory holes in - * high addresses that cannot be marked as UC by fixed/variable range MTRRs. - * Depending on the alignment of E820 ranges, this may possibly result in using natural honey crystallizeWebSeperate calculate_table_space_size and find_early_page_table out with init_memory_mapping. For all ranges, will allocate page table one time, but init mapping only for E820 RAM and E820_RESERVED_KERN. maricopa county superior court tier 1 case