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Will Deacon c1132702c7 Revert "arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES)" 
This reverts commit 65688d2a05deb9f0671a7e2301eadbfe7e27c9e9.

Unfortunately, the original Qualcomm Kryo cores integrated into the
MSM8996 SoC feature an L2 cache with 128-byte lines which sits above
the Point of Coherency. Consequently, we must restore ARCH_DMA_MINALIGN
to its former ugly self so that non-coherent DMA can be performed safely
on devices built using this SoC.

Thanks to Jeffrey Hugo for confirming this with a hardware designer.

Link: https://lore.kernel.org/r/CAOCk7NqdpUZFMSXfGjw0_1NaSK5gyTLgpS9kSdZn1jmBy-QkfA@mail.gmail.com/
Reported-by: Yassine Oudjana <y.oudjana@protonmail.com>
Link: https://lore.kernel.org/r/uHgsRacR8hJ7nW-I-pIcehzg-lNIn7NJvaL7bP9tfAftFsBjsgaY2qTjG9zyBgxHkjNL1WPNrD7YVv2JVD2_Wy-a5VTbcq-1xEi8ZnwrXBo=@protonmail.com
Signed-off-by: Will Deacon <will@kernel.org>
2021-07-12 13:37:34 +01:00
..
vdso
powerpc updates for 5.13
2021-04-30 12:22:28 -07:00
xen
xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped
2021-04-23 11:33:50 +02:00
acenv.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
acpi.h
arm64/acpi: disallow AML memory opregions to access kernel memory
2020-07-14 18:02:03 +01:00
alternative-macros.h
Merge branch 'for-next/insn' into for-next/core
2021-06-24 14:03:24 +01:00
alternative.h
arm64: alternatives: Split up alternative.h
2020-11-09 21:49:34 +00:00
arch_gicv3.h
arm64: Rename arm64-internal cache maintenance functions
2021-05-25 19:27:49 +01:00
arch_timer.h
arm64: vdso: Avoid ISB after reading from cntvct_el0
2021-03-24 16:48:41 +00:00
archrandom.h
arm64: Add support for SMCCC TRNG entropy source
2021-01-21 17:42:46 +00:00
arm_dsu_pmu.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
arm-cci.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
asm_pointer_auth.h
arm64: Conditionally configure PTR_AUTH key of the kernel.
2021-06-15 11:32:31 +01:00
asm-bug.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
asm-offsets.h
…
asm-prototypes.h
kasan: arm64: support specialized outlined tag mismatch checks
2021-05-26 23:31:26 +01:00
asm-uaccess.h
arm64: vmlinux.ld.S: add assertion for reserved_pg_dir offset
2021-02-03 20:43:45 +00:00
assembler.h
Merge branch 'for-next/caches' into for-next/core
2021-06-24 13:33:02 +01:00
atomic_ll_sc.h
arm64: Move the LSE gas support detection to Kconfig
2020-01-15 12:50:48 +00:00
atomic_lse.h
arm64: lse: fix LSE atomics with LLVM's integrated assembler
2020-01-16 17:25:10 +00:00
atomic.h
locking/atomic: make ARCH_ATOMIC a Kconfig symbol
2021-05-26 13:20:49 +02:00
barrier.h
arm64: Fix stale link in the arch_counter_enforce_ordering() comment
2021-05-18 10:47:13 +01:00
bitops.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
bitrev.h
…
boot.h
arm64: get rid of TEXT_OFFSET
2020-09-07 15:00:52 +01:00
brk-imm.h
arm64: kprobes: Use BRK instead of single-step when executing instructions out-of-line
2020-11-03 14:03:38 +00:00
bug.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
cache.h
Revert "arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES)"
2021-07-12 13:37:34 +01:00
cacheflush.h
set_memory: allow querying whether set_direct_map_*() is actually enabled
2021-07-08 11:48:20 -07:00
checksum.h
arm64: csum: cast to the proper type
2021-03-15 10:57:21 +00:00
clocksource.h
arm64: Introduce asm/vdso/clocksource.h
2020-03-21 15:23:55 +01:00
cmpxchg.h
arm64: fix unreachable code issue with cmpxchg
2019-09-17 12:11:50 +01:00
compat.h
compat: lift compat_s64 and compat_u64 to <asm-generic/compat.h>
2020-09-17 13:00:46 -04:00
compiler.h
CFI: Move function_nocfi() into compiler.h
2021-06-14 09:12:09 -07:00
cpu_ops.h
arm64: fix some spelling mistakes in the comments by codespell
2020-09-07 14:18:50 +01:00
cpu.h
arm64: cpuinfo: Split AArch32 registers out into a separate struct
2021-06-11 13:25:40 +01:00
cpufeature.h
arm64: Allow mismatched 32-bit EL0 support
2021-06-11 13:25:40 +01:00
cpuidle.h
arm64: Add cpuidle context save/restore helpers
2021-06-17 18:00:39 +01:00
cputype.h
arm64: cputype: Add CPU implementor & types for the Apple M1 cores
2021-04-08 20:18:38 +09:00
current.h
…
daifflags.h
arm64: entry: always set GIC_PRIO_PSR_I_SET during entry
2021-05-05 18:13:58 +01:00
dcc.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
debug-monitors.h
arm64: kprobes: Use BRK instead of single-step when executing instructions out-of-line
2020-11-03 14:03:38 +00:00
device.h
arm64: Remove dev->archdata.iommu pointer
2020-06-30 11:59:49 +02:00
dmi.h
…
efi.h
arm64: Rename arm64-internal cache maintenance functions
2021-05-25 19:27:49 +01:00
el2_setup.h
ARM:
2021-05-01 10:14:08 -07:00
elf.h
Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK
2020-06-05 13:45:21 -07:00
esr.h
arm64: mte: add in-kernel MTE helpers
2020-12-22 12:55:07 -08:00
exception.h
arm64: entry: make NMI entry/exit functions static
2021-06-07 11:35:56 +01:00
exec.h
arm64: uaccess: remove set_fs()
2020-12-02 19:49:11 +00:00
extable.h
arm64: Improve diagnostics when trapping BRK with FAULT_BRK_IMM
2020-09-18 16:35:54 +01:00
fb.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
fixmap.h
arm64/fixmap: make notes of fixed_addresses more precisely
2020-08-08 19:25:04 +01:00
fpsimd.h
arm64/sve: Skip flushing Z registers with 128 bit vectors
2021-05-26 20:04:28 +01:00
fpsimdmacros.h
arm64/sve: Split _sve_flush macro into separate Z and predicate flushes
2021-05-26 20:04:28 +01:00
ftrace.h
arm64: implement ftrace with regs
2019-11-06 14:17:35 +00:00
futex.h
arm64: uaccess: rename privileged uaccess routines
2020-12-02 19:49:10 +00:00
hardirq.h
arm64: irqstat: Get rid of duplicated declaration
2020-11-23 10:31:05 +01:00
hugetlb.h
mm/hugetlb: change parameters of arch_make_huge_pte()
2021-06-30 20:47:26 -07:00
hw_breakpoint.h
arm64: remove pointless __KERNEL__ guards
2019-08-05 11:06:33 +01:00
hwcap.h
Merge branch 'for-next/mte' into for-next/core
2020-10-02 12:16:11 +01:00
hyp_image.h
KVM: arm64: Allow using kvm_nvhe_sym() in hyp code
2021-03-19 12:01:20 +00:00
hypervisor.h
arm/arm64: Probe for the presence of KVM hypervisor
2021-03-31 09:16:55 +01:00
image.h
docs: arm64: convert docs to ReST and rename to .rst
2019-06-14 14:20:27 -06:00
insn-def.h
arm64: insn: avoid circular include dependency
2021-06-21 11:58:03 +01:00
insn.h
arm64: insn: avoid circular include dependency
2021-06-21 11:58:03 +01:00
io.h
asm-generic/io.h: implement pci_remap_cfgspace using ioremap_np
2021-04-08 20:18:38 +09:00
irq_work.h
arm64: smp: Add missing prototype for some smp.c functions
2021-03-29 10:41:42 +01:00
irq.h
arm64: irq: allow FIQs to be handled
2021-03-24 20:19:30 +00:00
irqflags.h
arm64: Always keep DAIF.[IF] in sync
2021-03-24 20:19:30 +00:00
jump_label.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kasan.h
arm64: kasan: simplify and inline MTE functions
2021-02-26 09:41:03 -08:00
Kbuild
set_memory: allow querying whether set_direct_map_*() is actually enabled
2021-07-08 11:48:20 -07:00
kernel-pgtable.h
arm64/mm: Rename ARM64_SWAPPER_USES_SECTION_MAPS
2021-06-21 18:22:23 +01:00
kexec.h
arm64: Use ELF fields defined in 'struct kimage'
2021-03-08 12:06:28 -07:00
kfence.h
set_memory: allow querying whether set_direct_map_*() is actually enabled
2021-07-08 11:48:20 -07:00
kgdb.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kprobes.h
arm64: kprobes: Remove redundant kprobe_step_ctx
2020-11-10 17:12:30 +00:00
kvm_arm.h
KVM: arm64: Save/restore MTE registers
2021-06-22 14:08:05 +01:00
kvm_asm.h
arm64 updates for 5.14
2021-06-28 14:04:24 -07:00
kvm_emulate.h
KVM: arm64: Introduce MTE VM feature
2021-06-22 14:08:05 +01:00
kvm_host.h
KVM/arm64 updates for v5.14.
2021-06-25 11:24:24 -04:00
kvm_hyp.h
Merge branch 'kvm-arm64/nvhe-panic-info' into kvmarm-master/next
2021-04-13 15:38:03 +01:00
kvm_mmu.h
Merge branch arm64/for-next/caches into kvmarm-master/next
2021-06-18 17:30:39 +01:00
kvm_mte.h
KVM: arm64: Save/restore MTE registers
2021-06-22 14:08:05 +01:00
kvm_pgtable.h
KVM: arm64: Introduce two cache maintenance callbacks
2021-06-18 12:34:52 +01:00
kvm_ptrauth.h
KVM: arm64: Update context references from host to hyp
2020-09-15 18:39:02 +01:00
kvm_ras.h
…
kvm_types.h
KVM: arm64: Use common KVM implementation of MMU memory caches
2020-07-09 13:29:43 -04:00
linkage.h
arm64: Add assembly annotations for weak-PI-alias madness
2021-06-01 18:34:38 +01:00
lse.h
arm64: lse: Fix LSE atomics with LLVM
2020-02-18 18:10:49 +00:00
memory.h
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
mman.h
arm64: mte: Validate the PROT_MTE request via arch_validate_flags()
2020-09-04 12:46:07 +01:00
mmu_context.h
arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan
2021-06-15 19:03:24 +01:00
mmu.h
KVM: arm64: Move BP hardening helpers into spectre.h
2020-11-16 10:40:18 +00:00
mmzone.h
…
module.h
arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>
2020-04-23 10:50:26 +09:00
module.lds.h
kasan: arm64: support specialized outlined tag mismatch checks
2021-05-26 23:31:26 +01:00
mte-def.h
KVM: arm64: Add ioctl to fetch/store tags in a guest
2021-06-22 14:08:06 +01:00
mte-kasan.h
kasan: speed up mte_set_mem_tag_range
2021-05-25 19:21:58 +01:00
mte.h
ARM:
2021-06-28 15:40:51 -07:00
neon-intrinsics.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
neon.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
numa.h
numa: Move numa implementation to common code
2021-01-14 15:08:55 -08:00
page-def.h
arm64/mm: Unify CONT_PTE_SHIFT
2020-09-11 16:33:43 +01:00
page.h
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
paravirt.h
x86/paravirt: Switch time pvops functions to use static_call()
2021-03-11 16:17:52 +01:00
patching.h
arm64: insn: decouple patching from insn code
2021-06-11 11:19:27 +01:00
pci.h
arm64: Enable PCI write-combine resources under sysfs
2020-09-18 14:05:13 +01:00
percpu.h
KVM: arm64: Support per_cpu_ptr in nVHE hyp code
2020-12-04 10:08:34 +00:00
perf_event.h
arm64: perf: Add more support on caps under sysfs
2021-06-03 09:53:17 +01:00
pgalloc.h
mm/thp: define default pmd_pgtable()
2021-07-01 11:06:03 -07:00
pgtable-hwdef.h
arm64/mm: Drop SECTION_[SHIFT|SIZE|MASK]
2021-06-15 12:08:39 +01:00
pgtable-prot.h
arm64: mm: Remove unused support for Normal-WT memory type
2021-06-01 18:53:53 +01:00
pgtable-types.h
arm64: add support for folded p4d page tables
2020-06-04 19:06:21 -07:00
pgtable.h
mm: rename p4d_page_vaddr to p4d_pgtable and make it return pud_t *
2021-07-08 11:48:22 -07:00
pointer_auth.h
arm64: Conditionally configure PTR_AUTH key of the kernel.
2021-06-15 11:32:31 +01:00
preempt.h
sched/core: Initialize the idle task with preemption disabled
2021-05-12 13:01:45 +02:00
probes.h
arm64/fpsimd: add <asm/insn.h> to <asm/kprobes.h> to fix fpsimd build
2020-11-23 10:59:00 +00:00
proc-fns.h
arm64: mm: convert cpu_do_switch_mm() to C
2020-02-27 14:30:50 +00:00
processor.h
Merge branch 'for-next/ptrauth' into for-next/core
2021-06-24 14:06:23 +01:00
ptdump.h
arm64: Add __init section marker to some functions
2021-04-08 17:45:10 +01:00
ptrace.h
Merge branch 'kvm-master' into kvm-next
2021-01-07 18:06:52 -05:00
pvclock-abi.h
KVM: arm64: Implement PV_TIME_FEATURES call
2019-10-21 19:20:27 +01:00
rwonce.h
arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y
2020-11-09 21:49:34 +00:00
scs.h
arm64: scs: Drop unused 'tmp' argument to scs_{load, save} asm macros
2021-05-27 17:55:33 +01:00
sdei.h
Merge branch 'for-next/entry' into for-next/core
2021-06-24 14:01:55 +01:00
seccomp.h
arm64: Enable seccomp architecture tracking
2020-11-20 11:16:34 -08:00
sections.h
KVM: arm64: Introduce a BSS section for use at Hyp
2021-03-19 12:01:20 +00:00
set_memory.h
set_memory: allow querying whether set_direct_map_*() is actually enabled
2021-07-08 11:48:20 -07:00
setup.h
arm64: Extract early FDT mapping from kaslr_early_init()
2021-02-09 13:47:50 +00:00
shmparam.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
signal32.h
arm64: remove pointless __KERNEL__ guards
2019-08-05 11:06:33 +01:00
signal.h
arm64: expose FAR_EL1 tag bits in siginfo
2020-11-23 18:17:39 +00:00
simd.h
arm64: fpsimd: Make sure SVE setup is complete before SIMD is used
2020-01-14 17:11:21 +00:00
smp_plat.h
arm64: Add missing header <asm/smp.h> in two files
2021-07-12 13:37:34 +01:00
smp.h
arm64: smp: remove stack from secondary_data
2021-05-26 22:45:46 +01:00
sparsemem.h
arm64: Force SPARSEMEM_VMEMMAP as the only memory management model
2021-04-23 14:18:21 +01:00
spectre.h
Merge remote-tracking branch 'origin/kvm-arm64/csv3' into kvmarm-master/queue
2020-12-03 19:12:24 +00:00
spinlock_types.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
spinlock.h
locking/arch: Move qrwlock.h include after qspinlock.h
2021-02-11 07:59:54 -05:00
stack_pointer.h
…
stackprotector.h
arm64: Defer enabling pointer authentication on boot core
2021-02-09 13:50:57 +00:00
stacktrace.h
arm64: Change the on_*stack functions to take a size argument
2021-05-26 20:01:17 +01:00
stage2_pgtable.h
KVM: arm64: Remove unused page-table code
2020-09-11 15:51:15 +01:00
stat.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
string.h
kasan, arm64: expand CONFIG_KASAN checks
2020-12-22 12:55:08 -08:00
suspend.h
arm64: Preserve register x18 when CPU is suspended
2020-05-15 16:35:50 +01:00
sync_bitops.h
…
syscall_wrapper.h
arm64: simplify syscall wrapper ifdeffery
2019-10-14 10:55:00 +01:00
syscall.h
arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
2020-07-16 11:41:31 +01:00
sysreg.h
ARM:
2021-06-28 15:40:51 -07:00
system_misc.h
ARM: 9095/1: ARM64: Remove arm_pm_restart()
2021-06-13 18:16:47 +01:00
thread_info.h
arm64/process.c: fix Wmissing-prototypes build warnings
2021-03-25 09:50:16 +00:00
timex.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
tlb.h
arm64: tlb: fix the TTL value of tlb_get_level
2021-06-23 14:52:57 +01:00
tlbflush.h
arm64: use a common .arch preamble for inline assembly
2020-08-28 11:15:15 +01:00
topology.h
arch_topology: Allow multiple entities to provide sched_freq_tick() callback
2021-03-10 10:55:37 +05:30
trans_pgd.h
arm64: trans_pgd: hibernate: idmap the single page that holds the copy page routines
2021-01-27 15:41:12 +00:00
traps.h
arm64: expose FAR_EL1 tag bits in siginfo
2020-11-23 18:17:39 +00:00
uaccess.h
arm64: mte: Enable TCO in functions that can read beyond buffer limits
2021-04-11 10:56:39 +01:00
unistd32.h
quota: Wire up quotactl_fd syscall
2021-06-07 12:11:24 +02:00
unistd.h
arch: Wire up Landlock syscalls
2021-04-22 12:22:11 -07:00
uprobes.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
vdso.h
arm64/vdso: Add time namespace page
2020-07-24 13:15:20 +01:00
vermagic.h
arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h>
2020-04-23 10:50:26 +09:00
virt.h
arm64: Provide an 'upgrade to VHE' stub hypercall
2021-02-08 12:51:26 +00:00
vmalloc.h
mm/vmalloc: provide fallback arch huge vmap support functions
2021-04-30 11:20:40 -07:00
vmap_stack.h
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00
word-at-a-time.h
arm64 updates for 5.13:
2021-04-26 10:25:03 -07:00
xor.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00