linux/arch/arc
Zi Yan 5c0541e11c mm: introduce cpu_icache_is_aliasing() across all architectures
In commit eacd0e950d ("ARC: [mm] Lazy D-cache flush (non aliasing
VIPT)"), arc adds the need to flush dcache to make icache see the code
page change.  This also requires special handling for
clear_user_(high)page().  Introduce cpu_icache_is_aliasing() to make MM
code query special clear_user_(high)page() easier.  This will be used by
the following commit.

Link: https://lkml.kernel.org/r/20241209182326.2955963-1-ziy@nvidia.com
Fixes: 5708d96da2 ("mm: avoid zeroing user movable page twice with init_on_alloc=1")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Alexander Potapenko <glider@google.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-12-18 19:04:43 -08:00
..
boot ARC: dts: Replace deprecated snps,nr-gpios property for snps,dw-apb-gpio-port devices 2024-12-10 10:12:56 -08:00
configs ARC: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM 2024-09-10 00:36:50 +02:00
include mm: introduce cpu_icache_is_aliasing() across all architectures 2024-12-18 19:04:43 -08:00
kernel Devicetree updates for v6.13: 2024-11-20 13:19:25 -08:00
lib ARCv2: memset: don't prefetch for len == 0 which happens a alot 2023-08-17 12:40:26 -07:00
mm mm: make arch_get_unmapped_area() take vm_flags by default 2024-09-09 16:39:13 -07:00
net ARC: bpf: Correct conditional check in 'check_jmp_32' 2024-12-10 10:12:56 -08:00
plat-axs10x arc: Explicitly include correct DT includes 2023-08-23 22:28:53 -07:00
plat-hsdk arc: Replace lkml.org links with lore 2021-12-28 19:48:49 -08:00
plat-sim ARC: merge HAPS-HS with nSIM-HS configs 2019-10-28 12:12:31 -07:00
plat-tb10x treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
Kbuild ARC: Add eBPF JIT support 2024-05-12 16:51:36 -07:00
Kconfig mm: introduce cpu_icache_is_aliasing() across all architectures 2024-12-18 19:04:43 -08:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile ARC: build: Try to guess GCC variant of cross compiler 2024-12-13 14:39:24 -08:00