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linux/arch/parisc/include/asm
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Mikulas Patocka 7ae04ba36b parisc: fix a possible DMA corruption 
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>
2024-07-29 16:19:07 +02:00
..
alternative.h parisc: Mark altinstructions read-only and 32-bit aligned 2023-11-25 09:43:17 +01:00
asm-offsets.h
asmregs.h
assembly.h parisc: Avoid clobbering the C/B bits in the PSW with tophys and tovirt macros 2024-02-27 22:51:44 +01:00
atomic.h locking/atomic: parisc: add preprocessor symbols 2023-06-05 09:57:16 +02:00
barrier.h parisc: Add alternative patching to synchronize_caches define 2020-10-15 08:10:38 +02:00
bitops.h Revert "parisc: Show error if wrong 32/64-bit compiler is being used" 2022-08-22 11:09:17 +02:00
bug.h parisc: Fix asm operand number out of range build error in bug table 2023-11-27 11:01:38 +01:00
cache.h parisc: fix a possible DMA corruption 2024-07-29 16:19:07 +02:00
cacheflush.h parisc: Try to fix random segmentation faults in package builds 2024-06-12 01:57:05 +02:00
cachetype.h Introduce cpu_dcache_is_aliasing() across all architectures 2024-02-22 15:27:19 -08:00
checksum.h parisc: Strip upper 32 bit of sum in csum_ipv6_magic for 64-bit builds 2024-02-27 22:51:45 +01:00
cmpxchg.h parisc: add u16 support to cmpxchg() 2024-04-09 22:06:00 -07:00
compat_ucontext.h
compat.h asm-generic: compat: Cleanup duplicate definitions 2022-04-26 13:35:54 -07:00
current.h parisc: Reduce code size by optimizing get_current() function calls 2022-03-11 19:49:31 +01:00
delay.h
dma-mapping.h dma-mapping: no need to pass a bus_type into get_arch_dma_ops() 2023-02-15 12:35:20 +01:00
dma.h parisc: dma: Add prototype for pcxl_dma_start 2023-08-10 19:12:16 +02:00
dwarf.h
eisa_bus.h
eisa_eeprom.h
elf.h parisc: fix mmap_base calculation when stack grows upwards 2023-11-15 15:30:09 -08:00
extable.h parisc: Fix random data corruption from exception handler 2024-01-30 17:18:58 +01:00
fixmap.h parisc: Don't hardcode assembler bit definitions in tmpalias code 2022-05-23 13:44:24 +02:00
floppy.h arch/*/: remove CONFIG_VIRT_TO_BUS 2022-06-28 13:20:21 +02:00
ftrace.h parisc: ftrace: Add declaration for ftrace_function_trampoline() 2023-08-10 22:51:54 +02:00
futex.h uaccess: remove CONFIG_SET_FS 2022-02-25 09:36:06 +01:00
grfioctl.h parisc: Drop HP-UX constants and structs from grfioctl.h 2023-05-03 17:43:26 +02:00
hardirq.h softirq: Move __ARCH_HAS_DO_SOFTIRQ to Kconfig 2021-02-10 23:34:16 +01:00
hardware.h parisc: Avoid printing the hardware path twice 2022-10-31 15:37:14 +01:00
hash.h
hugetlb.h mm: hugetlb: add huge page size param to set_huge_pte_at() 2023-09-29 17:20:47 -07:00
io.h asm/io: remove unnecessary xlate_dev_mem_ptr() and unxlate_dev_mem_ptr() 2023-11-23 10:37:40 +01:00
irq.h parisc: Remove leftover reference to the power_tasklet 2021-01-26 19:57:26 +01:00
irqflags.h parisc: Check if IRQs are disabled when calling arch_local_irq_restore() 2023-06-30 17:14:13 +02:00
jump_label.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
kbdleds.h
Kbuild char/agp: introduce asm-generic/agp.h 2023-02-13 22:13:29 +01:00
kexec.h parisc: fix compilation when KEXEC=n and KEXEC_FILE=y 2019-12-15 21:05:38 +01:00
kfence.h parisc: Add KFENCE support 2021-10-30 23:11:00 +02:00
kgdb.h parisc: Limit amount of kgdb breakpoints on parisc 2023-05-03 17:41:21 +02:00
kprobes.h parisc/kprobes: always include asm-generic/kprobes.h 2024-02-16 20:18:03 +01:00
ldcw.h parisc: Mark lock_aligned variables 16-byte aligned on SMP 2023-11-25 09:43:17 +01:00
led.h parisc: led: Rewrite LED/LCD driver to utilizize Linux LED subsystem 2023-08-28 17:58:14 +02:00
linkage.h
mman.h prctl: generalize PR_SET_MDWE support check to be per-arch 2024-03-26 11:07:22 -07:00
mmu_context.h parisc: Use constants to encode the space registers like SR_KERNEL 2022-03-11 19:49:31 +01:00
mmu.h parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
mmzone.h
module.h
page.h parisc: Define HAVE_ARCH_HUGETLB_UNMAPPED_AREA 2024-05-15 17:14:26 +02:00
parisc-device.h driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
parport.h
patch.h
pci.h PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h 2022-07-22 17:23:45 -05:00
pdc_chassis.h treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
pdc.h parisc: firmware: Simplify calling non-PA20 functions 2023-09-07 09:12:20 +02:00
pdcpat.h parisc: Add PDC locking functions for rendezvous code 2022-03-29 21:37:12 +02:00
perf_event.h
perf.h
pgalloc.h parisc: rename PGD_ORDER to PGD_TABLE_ORDER 2022-07-17 17:14:43 -07:00
pgtable.h parisc: Try to fix random segmentation faults in package builds 2024-06-12 01:57:05 +02:00
prefetch.h
processor.h parisc: fix mmap_base calculation when stack grows upwards 2023-11-15 15:30:09 -08:00
psw.h parisc: asm: psw.h: missing header guard 2019-06-25 14:52:26 +02:00
ptrace.h parisc: Use PRIV_USER and PRIV_KERNEL in ptrace.h 2021-11-01 07:36:00 +01:00
ropes.h parisc: sba-iommu: Fix sparse warnigs 2023-08-31 21:42:42 +02:00
rt_sigframe.h parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
runway.h parisc: ccio-dma: Create private runway procfs root entry 2023-08-28 18:00:27 +02:00
seccomp.h parisc: Enable seccomp architecture tracking 2020-11-20 11:16:34 -08:00
sections.h asm-generic: Refactor dereference_[kernel]_function_descriptor() 2022-02-16 23:25:11 +11:00
serial.h
shmparam.h parisc: shmparam.h: Document aliasing requirements of PA-RISC 2023-09-07 08:00:32 +02:00
signal.h parisc: Define sigset_t in parisc uapi header 2024-04-29 13:02:31 +02:00
smp.h parisc: Implement __cpu_die() and __cpu_disable() for CPU hotplugging 2022-03-29 21:37:12 +02:00
socket.h parisc: Define O_NONBLOCK to become 000200000 2020-10-15 08:10:38 +02:00
sparsemem.h
special_insns.h parisc: Fix random data corruption from exception handler 2024-01-30 17:18:58 +01:00
spinlock_types.h parisc: Restore __ldcw_align for PA-RISC 2.0 processors 2023-10-07 20:30:16 +02:00
spinlock.h parisc: Fix lightweight spinlock checks to not break futexes 2023-08-10 17:32:09 +02:00
string.h Revert "parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat" 2021-08-29 10:13:32 -07:00
superio.h
switch_to.h
syscall.h parisc: define syscall_get_error() 2019-07-16 19:23:24 -07:00
thread_info.h parisc: move CPU field back into thread_info 2021-11-04 11:21:47 +01:00
timex.h parisc: define get_cycles macro for arch-override 2022-05-13 23:59:23 +02:00
tlb.h parisc: use pgtable-nopXd instead of 4level-fixup 2019-12-04 19:44:15 -08:00
tlbflush.h parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
topology.h parisc: Switch from GENERIC_CPU_DEVICES to GENERIC_ARCH_TOPOLOGY 2022-03-29 21:37:12 +02:00
traps.h parisc: Fix handling off probe non-access faults 2022-03-11 19:49:30 +01:00
uaccess.h parisc: Fix random data corruption from exception handler 2024-01-30 17:18:58 +01:00
ucontext.h
unaligned.h parisc: Drop ifdef __KERNEL__ from non-uapi kernel headers 2021-11-01 07:36:00 +01:00
unistd.h parisc architecture fixes and updates for kernel v6.11-rc1: 2024-07-25 12:37:42 -07:00
unwind.h
vdso.h parisc: Add 32-bit gettimeofday() and clock_gettime() vDSO functions 2024-06-22 00:38:31 +02:00
video.h arch: Rename fbdev header and source files 2024-05-03 17:07:50 +02:00
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00