linux/arch/arm64/mm
Nicholas Piggin bbc180a5ad mm: HUGE_VMAP arch support cleanup
This changes the awkward approach where architectures provide init
functions to determine which levels they can provide large mappings for,
to one where the arch is queried for each call.

This removes code and indirection, and allows constant-folding of dead
code for unsupported levels.

This also adds a prot argument to the arch query.  This is unused
currently but could help with some architectures (e.g., some powerpc
processors can't map uncacheable memory with large pages).

Link: https://lkml.kernel.org/r/20210317062402.533919-7-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-04-30 11:20:40 -07:00
..
cache.S arm64: mm: Use modern annotations for assembly functions 2020-01-08 12:23:38 +00:00
context.c arm64: mm: Pin down ASIDs for sharing mm with devices 2020-09-28 22:15:38 +01:00
copypage.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
dma-mapping.c xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped 2021-04-23 11:33:50 +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: Support execute-only permissions with Enhanced PAN 2021-03-26 09:37:23 +00:00
flush.c mm: introduce page_size() 2019-09-24 15:54:08 -07:00
hugetlbpage.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
init.c arm64/mm: Reorganize pfn_valid() 2021-03-08 18:04:00 +00:00
ioremap.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -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: HUGE_VMAP arch support cleanup 2021-04-30 11:20:40 -07:00
mteswap.c arm64: mte: reset the page tag in page->flags 2020-12-22 12:55:07 -08:00
pageattr.c arch, mm: make kernel_page_present() always available 2020-12-15 12:13:43 -08:00
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: setup: name tcr register 2021-03-28 18:23:01 +01:00
ptdump_debugfs.c arm64: Add __init section marker to some functions 2021-04-08 17:45:10 +01:00
ptdump.c arm64: Add __init section marker to some functions 2021-04-08 17:45:10 +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