Geert Uytterhoeven 41c6b3e898 swiotlb: Add swiotlb=noforce debug option ...

commit fff5d99225 upstream.

On architectures like arm64, swiotlb is tied intimately to the core
architecture DMA support. In addition, ZONE_DMA cannot be disabled.

To aid debugging and catch devices not supporting DMA to memory outside
the 32-bit address space, add a kernel command line option
"swiotlb=noforce", which disables the use of bounce buffers.
If specified, trying to map memory that cannot be used with DMA will
fail, and a rate-limited warning will be printed.

Note that io_tlb_nslabs is set to 1, which is the minimal supported
value.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-01-26 08:24:44 +01:00

..

842

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2016-03-17 21:38:27 -07:00

fonts

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lz4

lib: lz4: cleanup unaligned access efficiency detection

2016-04-13 09:22:49 -07:00

lzo

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mpi

mpi: Fix NULL ptr dereference in mpi_powm() [ver #3]

2016-11-25 12:57:50 +11:00

raid6

Merge tag 'md/4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md

2016-10-07 09:45:43 -07:00

reed_solomon

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xz

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zlib_deflate

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zlib_inflate

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.gitignore

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argv_split.c

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asn1_decoder.c

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-05-17 09:33:39 -07:00

assoc_array.c

assoc_array: don't call compare_object() on a node

2016-04-06 14:06:48 +01:00

atomic64_test.c

atomic64: no need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE

2016-10-07 18:46:30 -07:00

atomic64.c

locking/atomic: Implement atomic{,64,_long}_fetch_{add,sub,and,andnot,or,xor}{,_relaxed,_acquire,_release}()

2016-06-16 10:48:32 +02:00

audit.c

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bcd.c

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bch.c

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bitmap.c

lib/bitmap.c: enhance bitmap syntax

2016-10-11 15:06:30 -07:00

bitrev.c

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bsearch.c

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btree.c

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bug.c

lib/bug.c: use common WARN helper

2016-03-17 15:09:34 -07:00

build_OID_registry

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bust_spinlocks.c

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chacha20.c

random: replace non-blocking pool with a Chacha20-based CRNG

2016-07-03 00:57:23 -04:00

check_signature.c

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checksum.c

ipv4: Update parameters for csum_tcpudp_magic to their original types

2016-03-13 23:55:13 -04:00

clz_ctz.c

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clz_tab.c

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cmdline.c

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compat_audit.c

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cordic.c

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cpu_rmap.c

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cpu-notifier-error-inject.c

fault-injection/cpu: Convert to hotplug state machine

2016-09-19 21:44:31 +02:00

cpumask.c

cpumask: Export cpumask_any_but()

2016-02-29 09:35:20 +01:00

crc7.c

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crc8.c

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crc16.c

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crc32.c

crc32: use ktime_get_ns() for measurement

2016-08-02 19:35:08 -04:00

crc32defs.h

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crc-ccitt.c

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crc-itu-t.c

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crc-t10dif.c

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ctype.c

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debug_info.c

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debug_locks.c

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debugobjects.c

lib/debugobjects: export for use in modules

2016-11-30 16:32:52 -08:00

dec_and_lock.c

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decompress_bunzip2.c

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decompress_inflate.c

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decompress_unlz4.c

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decompress_unlzma.c

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decompress_unlzo.c

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decompress_unxz.c

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decompress.c

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devres.c

devres: use to_pci_dev()

2016-02-07 23:17:59 -08:00

digsig.c

lib/digsig: digsig_verify_rsa(): return -EINVAL if modulo length is zero

2016-05-31 16:42:00 +08:00

div64.c

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dma-debug.c

Merge tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2016-10-06 17:13:54 -07:00

dma-noop.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

dump_stack.c

dump_stack: avoid potential deadlocks

2016-02-05 18:10:40 -08:00

dynamic_debug.c

dynamic_debug: add jump label support

2016-08-04 08:50:07 -04:00

dynamic_queue_limits.c

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earlycpio.c

lib/cpio: Make find_cpio_data()'s offset arg optional

2016-06-08 11:04:19 +02:00

extable.c

extable: add support for relative extables to search and sort routines

2016-02-24 14:57:26 +00:00

fault-inject.c

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fdt_empty_tree.c

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fdt_ro.c

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fdt_rw.c

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fdt_strerror.c

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fdt_sw.c

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fdt_wip.c

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fdt.c

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find_bit.c

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flex_array.c

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flex_proportions.c

lib+mm: fix few spelling mistakes

2016-02-15 11:18:23 +01:00

gcd.c

lib/GCD.c: use binary GCD algorithm instead of Euclidean

2016-05-20 17:58:30 -07:00

gen_crc32table.c

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genalloc.c

lib/genalloc.c: start search from start of chunk

2016-10-27 18:43:43 -07:00

glob.c

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halfmd4.c

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hexdump.c

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hweight.c

x86/hweight: Get rid of the special calling convention

2016-06-08 15:01:02 +02:00

idr.c

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inflate.c

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int_sqrt.c

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interval_tree_test.c

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interval_tree.c

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iomap_copy.c

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iomap.c

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iommu-common.c

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iommu-helper.c

lib/iommu-helper: skip to next segment

2016-08-02 19:35:07 -04:00

ioremap.c

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iov_iter.c

fix a fencepost error in pipe_advance()

2017-01-19 20:18:02 +01:00

irq_poll.c

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00

irq_regs.c

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is_single_threaded.c

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jedec_ddr_data.c

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kasprintf.c

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Kconfig

Merge branch 'akpm' (patches from Andrew)

2016-10-07 21:38:00 -07:00

Kconfig.debug

config: Adding the new config parameter CONFIG_PROVE_LOCKING_SMALL for sparc

2016-11-18 11:33:19 -08:00

Kconfig.kasan

mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB

2016-07-28 16:07:41 -07:00

Kconfig.kgdb

kgdb: depends on VT

2016-05-23 17:04:14 -07:00

Kconfig.kmemcheck

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Kconfig.ubsan

ubsan: allow to disable the null sanitizer

2016-09-20 14:26:08 +02:00

kfifo.c

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klist.c

klist: fix starting point removed bug in klist iterators

2016-02-07 22:18:47 -08:00

kobject_uevent.c

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kobject.c

kobject: export kset_find_obj() for module use

2016-02-09 17:36:34 -08:00

kstrtox.c

lib/kstrtox.c: smaller _parse_integer()

2016-10-11 15:06:30 -07:00

kstrtox.h

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lcm.c

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libcrc32c.c

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2016-01-22 11:58:43 -08:00

list_debug.c

list: kill list_force_poison()

2016-03-09 15:43:42 -08:00

list_sort.c

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llist.c

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locking-selftest-hardirq.h

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locking-selftest-mutex.h

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locking-selftest-rlock-hardirq.h

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locking-selftest-rlock-softirq.h

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locking-selftest-rlock.h

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locking-selftest-rsem.h

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locking-selftest-softirq.h

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locking-selftest-spin-hardirq.h

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locking-selftest-spin-softirq.h

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locking-selftest-spin.h

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locking-selftest-wlock-hardirq.h

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locking-selftest-wlock-softirq.h

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locking-selftest-wlock.h

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locking-selftest-wsem.h

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locking-selftest.c

locking/selftest: Fix output since KERN_CONT changes

2016-11-25 07:12:19 +01:00

lockref.c

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lru_cache.c

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Makefile

kcov: do not instrument lib/stackdepot.c

2016-10-11 15:06:32 -07:00

md5.c

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memory-notifier-error-inject.c

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memweight.c

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net_utils.c

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netdev-notifier-error-inject.c

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nlattr.c

libnl: fix help of _64bit functions

2016-04-23 20:13:24 -04:00

nmi_backtrace.c

nmi_backtrace: generate one-line reports for idle cpus

2016-10-07 18:46:30 -07:00

nodemask.c

include/linux/nodemask.h: create next_node_in() helper

2016-05-19 19:12:14 -07:00

notifier-error-inject.c

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notifier-error-inject.h

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of-reconfig-notifier-error-inject.c

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oid_registry.c

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once.c

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parser.c

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pci_iomap.c

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percpu_counter.c

percpu_counter: update debugobjects fixup callbacks return type

2016-05-19 19:12:14 -07:00

percpu_ida.c

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percpu_test.c

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percpu-refcount.c

percpu-refcount: init ->confirm_switch member properly

2016-08-11 13:52:23 -04:00

plist.c

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pm-notifier-error-inject.c

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radix-tree.c

Revert "radix tree test suite: fix compilation"

2016-12-09 10:41:42 -08:00

random32.c

Merge tag 'gcc-plugins-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2016-10-15 10:03:15 -07:00

ratelimit.c

ratelimit: extend to print suppressed messages on release

2016-08-02 19:35:06 -04:00

rational.c

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rbtree_test.c

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rbtree.c

Introduce rb_replace_node_rcu()

2016-07-06 10:51:14 +01:00

reciprocal_div.c

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rhashtable.c

rhashtable: Add rhlist interface

2016-09-20 04:43:36 -04:00

sbitmap.c

sbitmap: initialize weight to zero

2016-09-19 08:19:40 -06:00

scatterlist.c

scatterlist: fix a typo in comment block of sg_miter_stop()

2016-02-08 10:15:17 -08:00

seq_buf.c

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sg_pool.c

lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c

2016-04-15 16:53:14 -04:00

sg_split.c

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sha1.c

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show_mem.c

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smp_processor_id.c

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sort.c

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stackdepot.c

lib/stackdepot: export save/fetch stack for drivers

2016-11-11 08:12:37 -08:00

stmp_device.c

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string_helpers.c

string_helpers: add kstrdup_quotable_file

2016-04-21 10:47:26 +10:00

string.c

lib: move strtobool() to kstrtobool()

2016-03-17 15:09:34 -07:00

strncpy_from_user.c

lib: harden strncpy_from_user

2016-10-11 15:06:30 -07:00

strnlen_user.c

unsafe_[get|put]_user: change interface to use a error target label

2016-08-08 13:02:01 -07:00

swiotlb.c

swiotlb: Add swiotlb=noforce debug option

2017-01-26 08:24:44 +01:00

syscall.c

lib/syscall: Pin the task stack in collect_syscall()

2016-09-16 09:18:53 +02:00

test_bitmap.c

test_bitmap: unit tests for lib/bitmap.c

2016-02-19 22:54:09 -05:00

test_bpf.c

bpf, test: fix ld_abs + vlan push/pop stress test

2016-10-20 14:39:06 -04:00

test_firmware.c

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test_hash.c

lib/test_hash.c: fix warning in preprocessor symbol evaluation

2016-09-01 17:52:01 -07:00

test_hexdump.c

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test_kasan.c

kasan: support use-after-scope detection

2016-11-30 16:32:52 -08:00

test_module.c

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test_printf.c

mm, printk: introduce new format string for flags

2016-03-15 16:55:16 -07:00

test_rhashtable.c

rhashtable-test: Fix max_size parameter description

2016-08-08 12:52:42 -07:00

test_static_key_base.c

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test_static_keys.c

locking/static_keys: Avoid nested functions

2016-02-09 10:27:29 +01:00

test_user_copy.c

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test_uuid.c

lib/uuid: add a test module

2016-05-30 15:26:57 -07:00

test-kstrtox.c

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test-string_helpers.c

lib/test-string_helpers.c: fix and improve string_get_size() tests

2016-02-03 08:28:43 -08:00

textsearch.c

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timerqueue.c

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ts_bm.c

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ts_fsm.c

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ts_kmp.c

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ubsan.c

UBSAN: fix typo in format string

2016-08-02 17:31:41 -04:00

ubsan.h

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ucs2_string.c

lib/ucs2_string: Speed up ucs2_utf8size()

2016-09-09 16:08:46 +01:00

uuid.c

lib/uuid.c: use correct offset in uuid parser

2016-05-30 15:26:57 -07:00

vsprintf.c

lib/uuid.c: introduce a few more generic helpers

2016-05-20 17:58:30 -07:00

win_minmax.c

lib/win_minmax: windowed min or max estimator

2016-09-21 00:22:59 -04:00