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mirror_ubuntu-kernels/arch/arm64/mm
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Mike Kravetz 2e5809a4dd arm64/hugetlb: fix CMA gigantic page order for non-4K PAGE_SIZE 
For non-4K PAGE_SIZE configs, the largest gigantic huge page size is
CONT_PMD_SHIFT order. On arm64 with 64K PAGE_SIZE, the gigantic page is
16G. Therefore, one should be able to specify 'hugetlb_cma=16G' on the
kernel command line so that one gigantic page can be allocated from CMA.
However, when adding such an option the following message is produced:

hugetlb_cma: cma area should be at least 8796093022208 MiB

This is because the calculation for non-4K gigantic page order is
incorrect in the arm64 specific routine arm64_hugetlb_cma_reserve().

Fixes: abb7962adc ("arm64/hugetlb: Reserve CMA areas for gigantic pages on 16K and 64K configs")
Cc: <stable@vger.kernel.org> # 5.9.x
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20211005202529.213812-1-mike.kravetz@oracle.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-10-11 18:45:19 +01:00
..
cache.S arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
context.c arm64: mm: Use better bitmap_zalloc() 2021-06-01 18:52:05 +01:00
copypage.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
dma-mapping.c iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops() 2021-06-25 15:02:43 +02:00
extable.c arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM 2020-09-18 16:35:54 +01:00
fault.c arm64: kasan: mte: remove redundant mte_report_once logic 2021-08-02 18:15:28 +01:00
flush.c arm64: Rename arm64-internal cache maintenance functions 2021-05-25 19:27:49 +01:00
hugetlbpage.c arm64/hugetlb: fix CMA gigantic page order for non-4K PAGE_SIZE 2021-10-11 18:45:19 +01:00
init.c arm64 fixes: 2021-09-10 11:58:20 -07:00
ioremap.c arm64: decouple check whether pfn is in linear map from pfn_valid() 2021-06-30 20:47:29 -07:00
kasan_init.c Merge branches 'for-next/misc', 'for-next/kselftest', 'for-next/xntable', 'for-next/vdso', 'for-next/fiq', 'for-next/epan', 'for-next/kasan-vmalloc', 'for-next/fgt-boot-init', 'for-next/vhe-only' and 'for-next/neon-softirqs-disabled', remote-tracking branch 'arm64/for-next/perf' into for-next/core 2021-04-15 14:00:38 +01:00
Makefile RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
mmap.c arm64: Include linux/io.h in mm/mmap.c 2021-01-27 12:52:16 +00:00
mmu.c mm/memory_hotplug: remove nid parameter from arch_remove_memory() 2021-09-08 11:50:23 -07:00
mteswap.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
pageattr.c set_memory: allow querying whether set_direct_map_*() is actually enabled 2021-07-08 11:48:20 -07:00
pgd.c mm: consolidate pgtable_cache_init() and pgd_cache_init() 2019-09-24 15:54:09 -07:00
physaddr.c arm64: Do not pass tagged addresses to __is_lm_address() 2021-02-02 17:44:47 +00:00
proc.S arm64: kasan: mte: use a constant kernel GCR_EL1 value 2021-08-02 18:14:21 +01:00
ptdump_debugfs.c arm64: Add __init section marker to some functions 2021-04-08 17:45:10 +01:00
ptdump.c arm64: mm: Remove unused support for Device-GRE memory type 2021-06-01 18:53:53 +01:00
trans_pgd.c arm64: trans_pgd: hibernate: idmap the single page that holds the copy page routines 2021-01-27 15:41:12 +00:00