mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 08:43:31 +00:00
af7ddd8a62
A huge update this time, but a lot of that is just consolidating or
removing code:
- provide a common DMA_MAPPING_ERROR definition and avoid indirect
calls for dma_map_* error checking
- use direct calls for the DMA direct mapping case, avoiding huge
retpoline overhead for high performance workloads
- merge the swiotlb dma_map_ops into dma-direct
- provide a generic remapping DMA consistent allocator for architectures
that have devices that perform DMA that is not cache coherent. Based
on the existing arm64 implementation and also used for csky now.
- improve the dma-debug infrastructure, including dynamic allocation
of entries (Robin Murphy)
- default to providing chaining scatterlist everywhere, with opt-outs
for the few architectures (alpha, parisc, most arm32 variants) that
can't cope with it
- misc sparc32 dma-related cleanups
- remove the dma_mark_clean arch hook used by swiotlb on ia64 and
replace it with the generic noncoherent infrastructure
- fix the return type of dma_set_max_seg_size (Niklas Söderlund)
- move the dummy dma ops for not DMA capable devices from arm64 to
common code (Robin Murphy)
- ensure dma_alloc_coherent returns zeroed memory to avoid kernel data
leaks through userspace. We already did this for most common
architectures, but this ensures we do it everywhere.
dma_zalloc_coherent has been deprecated and can hopefully be
removed after -rc1 with a coccinelle script.
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Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping
Pull DMA mapping updates from Christoph Hellwig:
"A huge update this time, but a lot of that is just consolidating or
removing code:
- provide a common DMA_MAPPING_ERROR definition and avoid indirect
calls for dma_map_* error checking
- use direct calls for the DMA direct mapping case, avoiding huge
retpoline overhead for high performance workloads
- merge the swiotlb dma_map_ops into dma-direct
- provide a generic remapping DMA consistent allocator for
architectures that have devices that perform DMA that is not cache
coherent. Based on the existing arm64 implementation and also used
for csky now.
- improve the dma-debug infrastructure, including dynamic allocation
of entries (Robin Murphy)
- default to providing chaining scatterlist everywhere, with opt-outs
for the few architectures (alpha, parisc, most arm32 variants) that
can't cope with it
- misc sparc32 dma-related cleanups
- remove the dma_mark_clean arch hook used by swiotlb on ia64 and
replace it with the generic noncoherent infrastructure
- fix the return type of dma_set_max_seg_size (Niklas Söderlund)
- move the dummy dma ops for not DMA capable devices from arm64 to
common code (Robin Murphy)
- ensure dma_alloc_coherent returns zeroed memory to avoid kernel
data leaks through userspace. We already did this for most common
architectures, but this ensures we do it everywhere.
dma_zalloc_coherent has been deprecated and can hopefully be
removed after -rc1 with a coccinelle script"
* tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping: (73 commits)
dma-mapping: fix inverted logic in dma_supported
dma-mapping: deprecate dma_zalloc_coherent
dma-mapping: zero memory returned from dma_alloc_*
sparc/iommu: fix ->map_sg return value
sparc/io-unit: fix ->map_sg return value
arm64: default to the direct mapping in get_arch_dma_ops
PCI: Remove unused attr variable in pci_dma_configure
ia64: only select ARCH_HAS_DMA_COHERENT_TO_PFN if swiotlb is enabled
dma-mapping: bypass indirect calls for dma-direct
vmd: use the proper dma_* APIs instead of direct methods calls
dma-direct: merge swiotlb_dma_ops into the dma_direct code
dma-direct: use dma_direct_map_page to implement dma_direct_map_sg
dma-direct: improve addressability error reporting
swiotlb: remove dma_mark_clean
swiotlb: remove SWIOTLB_MAP_ERROR
ACPI / scan: Refactor _CCA enforcement
dma-mapping: factor out dummy DMA ops
dma-mapping: always build the direct mapping code
dma-mapping: move dma_cache_sync out of line
dma-mapping: move various slow path functions out of line
...
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| xen | ||
| acenv.h | ||
| acpi.h | ||
| alternative.h | ||
| arch_gicv3.h | ||
| arch_timer.h | ||
| arm-cci.h | ||
| arm_dsu_pmu.h | ||
| asm-bug.h | ||
| asm-offsets.h | ||
| asm-prototypes.h | ||
| asm-uaccess.h | ||
| assembler.h | ||
| atomic.h | ||
| atomic_ll_sc.h | ||
| atomic_lse.h | ||
| barrier.h | ||
| bitops.h | ||
| bitrev.h | ||
| boot.h | ||
| brk-imm.h | ||
| bug.h | ||
| cache.h | ||
| cacheflush.h | ||
| checksum.h | ||
| clocksource.h | ||
| cmpxchg.h | ||
| compat.h | ||
| cpu.h | ||
| cpu_ops.h | ||
| cpucaps.h | ||
| cpufeature.h | ||
| cpuidle.h | ||
| cputype.h | ||
| current.h | ||
| daifflags.h | ||
| dcc.h | ||
| debug-monitors.h | ||
| device.h | ||
| dma-mapping.h | ||
| dmi.h | ||
| efi.h | ||
| elf.h | ||
| esr.h | ||
| exception.h | ||
| exec.h | ||
| extable.h | ||
| fb.h | ||
| fixmap.h | ||
| fpsimd.h | ||
| fpsimdmacros.h | ||
| ftrace.h | ||
| futex.h | ||
| hardirq.h | ||
| hugetlb.h | ||
| hw_breakpoint.h | ||
| hwcap.h | ||
| hypervisor.h | ||
| image.h | ||
| insn.h | ||
| io.h | ||
| irq.h | ||
| irq_work.h | ||
| irqflags.h | ||
| jump_label.h | ||
| kasan.h | ||
| Kbuild | ||
| kernel-pgtable.h | ||
| kexec.h | ||
| kgdb.h | ||
| kprobes.h | ||
| kvm_arm.h | ||
| kvm_asm.h | ||
| kvm_coproc.h | ||
| kvm_emulate.h | ||
| kvm_host.h | ||
| kvm_hyp.h | ||
| kvm_mmio.h | ||
| kvm_mmu.h | ||
| linkage.h | ||
| lse.h | ||
| memblock.h | ||
| memory.h | ||
| mmu.h | ||
| mmu_context.h | ||
| mmzone.h | ||
| module.h | ||
| neon-intrinsics.h | ||
| neon.h | ||
| numa.h | ||
| page-def.h | ||
| page.h | ||
| paravirt.h | ||
| pci.h | ||
| percpu.h | ||
| perf_event.h | ||
| pgalloc.h | ||
| pgtable-hwdef.h | ||
| pgtable-prot.h | ||
| pgtable-types.h | ||
| pgtable.h | ||
| pointer_auth.h | ||
| preempt.h | ||
| probes.h | ||
| proc-fns.h | ||
| processor.h | ||
| ptdump.h | ||
| ptrace.h | ||
| sdei.h | ||
| seccomp.h | ||
| sections.h | ||
| shmparam.h | ||
| signal32.h | ||
| simd.h | ||
| smp.h | ||
| smp_plat.h | ||
| sparsemem.h | ||
| spinlock.h | ||
| spinlock_types.h | ||
| stack_pointer.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| stage2_pgtable.h | ||
| stat.h | ||
| string.h | ||
| suspend.h | ||
| sync_bitops.h | ||
| syscall.h | ||
| syscall_wrapper.h | ||
| sysreg.h | ||
| system_misc.h | ||
| thread_info.h | ||
| timex.h | ||
| tlb.h | ||
| tlbflush.h | ||
| topology.h | ||
| traps.h | ||
| uaccess.h | ||
| unistd.h | ||
| unistd32.h | ||
| uprobes.h | ||
| vdso.h | ||
| vdso_datapage.h | ||
| virt.h | ||
| vmap_stack.h | ||
| word-at-a-time.h | ||
| xor.h | ||