Mikulas Patocka 642a0b7453 parisc: fix a possible DMA corruption ... commit 7ae04ba36b upstream. ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-08-14 13:58:57 +02:00
..
boot	parisc: boot: Nuke some sparse warnings in decompressor	2023-08-10 22:42:57 +02:00
configs	arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS	2023-07-29 14:08:22 -07:00
include	parisc: fix a possible DMA corruption	2024-08-14 13:58:57 +02:00
kernel	parisc: use generic sys_fanotify_mark implementation	2024-07-05 09:33:54 +02:00
lib	parisc: ucmpdi2: Fix no previous prototype for '__ucmpdi2' warning	2023-08-10 18:34:05 +02:00
math-emu	parisc: math-emu: Avoid compiler warnings with W=1	2023-07-03 18:56:03 +02:00
mm	parisc: Fix random data corruption from exception handler	2024-02-23 09:25:18 +01:00
net	parisc: fix unaligned accesses in BPF	2024-08-14 13:58:57 +02:00
video	fbdev: Include <linux/fb.h> instead of <asm/fb.h>	2023-05-18 11:06:21 +02:00
defpalo.conf
install.sh	kbuild: factor out the common installation code into scripts/install.sh	2022-05-11 21:45:53 +09:00
Kbuild	parisc: Wire up eBPF JIT compiler	2023-08-22 10:24:47 +02:00
Kconfig	parisc: fix a possible DMA corruption	2024-08-14 13:58:57 +02:00
Kconfig.debug	parisc: Use page table locks only if DEBUG_KERNEL is enabled	2023-08-20 20:23:46 +02:00
Makefile	kbuild: unify vdso_install rules	2024-06-12 11:12:32 +02:00