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

..

9p.h

net/9p/tracing: Export enums in tracepoints to userspace

2015-04-08 09:39:59 -04:00

asoc.h

ASoC: trace: fix printing jack name

2016-02-26 10:52:48 +09:00

bcache.h

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

block.h

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

btrfs.h

btrfs: fix crash when tracepoint arguments are freed by wq callbacks

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

cgroup.h

cgroup: add tracepoints for basic operations

2016-08-10 11:23:44 -04:00

clk.h

clk: Add tracepoints for hardware operations

2015-03-12 12:18:51 -07:00

cma.h

mm: cma: add trace events for CMA allocations and freeings

2015-04-15 16:35:19 -07:00

compaction.h

mm, compaction: rename COMPACT_PARTIAL to COMPACT_SUCCESS

2016-10-07 18:46:27 -07:00

context_tracking.h

context_tracking: User/kernel broundary cross trace events

2013-08-14 17:14:48 +02:00

cpuhp.h

cpu/hotplug: Add multi instance support

2016-09-02 20:05:05 +02:00

devlink.h

devlink: fix trace format string

2016-07-14 22:16:05 -07:00

ext4.h

don't bother with ->d_inode->i_sb - it's always equal to ->d_sb

2016-04-10 17:11:51 -04:00

f2fs.h

f2fs: clean up bio cache trace

2016-08-24 10:16:14 -07:00

fence.h

tracing/dma-buf/fence: Fix timeline str value on fence_annotate_wait_on

2016-01-25 11:03:17 -05:00

fib6.h

ipv6, trace: fix tos reporting on fib6_table_lookup

2016-03-20 13:44:34 -04:00

fib.h

net: Make table id type u32

2015-09-01 14:32:44 -07:00

filelock.h

locks: sprinkle some tracepoints around the file locking code

2016-01-08 11:38:13 -05:00

filemap.h

tracing, mm: Record pfn instead of pointer to struct page

2015-04-13 11:44:52 -03:00

gpio.h

tracing: gpio: Add Kconfig option for enabling/disabling trace events

2015-10-20 21:56:10 -04:00

host1x.h

gpu: host1x: Use struct host1x_bo pointers in traces

2014-11-13 16:11:32 +01:00

hswadsp.h

Merge remote-tracking branches 'asoc/topic/ml26124', 'asoc/topic/of', 'asoc/topic/omap', 'asoc/topic/pxa' and 'asoc/topic/rcar' into asoc-next

2014-03-12 23:04:35 +00:00

huge_memory.h

mm, thp: convert from optimistic swapin collapsing to conservative

2016-07-26 16:19:19 -07:00

i2c.h

i2c: Add message transfer tracepoints for SMBUS [ver #2]

2014-03-13 22:15:07 +01:00

intel_ish.h

HID: intel-ish-hid: ipc layer

2016-08-17 11:13:07 +02:00

intel-sst.h

tracing: Add TRACE_SYSTEM_VAR to intel-sst

2015-04-07 12:31:12 -04:00

iommu.h

iommu: Change trace unmap api to report unmapped size

2015-01-19 15:19:31 +01:00

ipi.h

tracepoint: add generic tracepoint definitions for IPI tracing

2014-08-07 20:40:40 -04:00

irq.h

irq: Fix typo in tracepoint.xml

2016-09-29 10:03:38 +02:00

jbd2.h

jbd2: trace when lock_buffer in do_get_write_access takes a long time

2013-04-21 16:47:54 -04:00

kmem.h

Merge tag 'trace-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2016-03-24 10:52:25 -07:00

kvm.h

KVM: x86: add KVM_CAP_X2APIC_API

2016-07-14 09:03:57 +02:00

libata.h

ata: Handle ATA NCQ NO-DATA commands correctly

2016-07-15 08:08:13 -04:00

lock.h

tracing: Factorize lock events in a lock class

2010-05-09 13:45:35 +02:00

mce.h

x86/mce/AMD: Save MCA_IPID in MCE struct on SMCA systems

2016-09-13 15:23:12 +02:00

migrate.h

mm: tracing: Export enums in tracepoints to user space

2015-04-08 09:40:01 -04:00

mmc.h

mmc: core: Provide tracepoints for request processing

2016-05-02 10:33:11 +02:00

mmflags.h

mm, thp: remove __GFP_NORETRY from khugepaged and madvised allocations

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

module.h

tracing: %pF is only for function pointers

2015-03-25 08:57:22 -04:00

napi.h

net: fixup for tracepoint napi:napi_poll

2016-07-15 15:55:01 -07:00

net.h

net: rename vlan_tx_* helpers since "tx" is misleading there

2015-01-13 17:51:08 -05:00

nilfs2.h

nilfs2: add tracepoints for analyzing reading and writing metadata files

2015-11-06 17:50:42 -08:00

nmi.h

x86: Add NMI duration tracepoints

2013-06-23 11:52:58 +02:00

oom.h

mm, oom: change type of oom_score_adj to short

2012-12-11 17:22:27 -08:00

page_isolation.h

mm/page_isolation: fix tracepoint to mirror check function behavior

2016-04-01 17:03:37 -05:00

page_ref.h

mm/page_ref: add tracepoint to track down page reference manipulation

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

pagemap.h

mm: pagemap: avoid unnecessary overhead when tracepoints are deactivated

2014-08-06 18:01:20 -07:00

power_cpu_migrate.h

ARM: bL_switcher/trace: Add trace trigger for trace bootstrapping

2013-09-23 18:47:30 -04:00

power.h

cpufreq: intel_pstate: Add io_boost trace

2016-09-16 23:55:30 +02:00

printk.h

printk, tracing: Avoiding unneeded blank lines

2016-07-15 15:52:41 -04:00

random.h

tracing: %pF is only for function pointers

2015-03-25 08:57:22 -04:00

rcu.h

rcu: Enforce expedited-GP fairness via funnel wait queue

2016-03-31 13:34:08 -07:00

regulator.h

regulator: Add basic trace facilities

2011-01-12 14:33:00 +00:00

rpm.h

device.h: audit and cleanup users in main include dir

2012-03-16 10:38:24 -04:00

rxrpc.h

rxrpc: Keep the call timeouts as ktimes rather than jiffies

2016-09-30 14:40:11 +01:00

sched.h

sched/core: Fix trace_sched_switch()

2015-10-06 17:08:15 +02:00

scsi.h

scsi-trace: define ZBC_IN and ZBC_OUT

2016-04-11 16:57:09 -04:00

signal.h

tracing: let trace_signal_generate() report more info, kill overflow_fail/lose_info

2012-01-13 18:48:50 +01:00

skb.h

tracing: Fix event alignment: skb:kfree_skb

2011-03-10 10:34:31 -05:00

sock.h

core: add tracepoints for queueing skb to rcvbuf

2011-06-21 16:06:10 -07:00

spi.h

spi: Provide common spi_message processing loop

2013-10-11 20:09:50 +01:00

spmi.h

spmi: add command tracepoints for SPMI

2015-08-05 12:27:09 -07:00

sunrpc.h

SUNRPC: Add tracepoints for dropped and deferred requests

2016-07-13 15:53:43 -04:00

sunvnet.h

sunvnet: Add support for perf LDC event tracing

2016-02-07 14:13:05 -05:00

swiotlb.h

swiotlb: Add swiotlb=noforce debug option

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

syscalls.h

tracepoint: Fix sparse warnings in tracepoint.c

2014-04-09 10:12:11 -04:00

target.h

target: Minimize SCSI header #include directives

2015-06-02 08:03:25 -07:00

task.h

tracing: Don't make assumptions about length of string on task rename

2015-08-31 10:47:14 -04:00

thermal_power_allocator.h

thermal: consistently use int for temperatures

2015-08-03 23:15:50 +08:00

thermal.h

thermal: trace: migrating thermal traces to use TRACE_DEFINE_ENUM() macros

2016-03-15 07:51:40 +08:00

thp.h

powerpc/thp: Add tracepoints to track hugepage invalidate

2014-08-13 18:20:42 +10:00

timer.h

tracing: Fix tick_stop tracepoint symbols for user export

2016-08-09 09:51:23 -04:00

tlb.h

tracing: Remove duplicate checks for online CPUs

2016-03-08 11:19:28 -05:00

udp.h

udp: add tracepoints for queueing skb to rcvbuf

2011-06-21 16:06:10 -07:00

v4l2.h

[media] media: videobuf2: Move timestamp to vb2_buffer

2015-12-18 13:53:31 -02:00

vb2.h

[media] media: videobuf2: Move timestamp to vb2_buffer

2015-12-18 13:53:31 -02:00

vmscan.h

mm, vmscan: add classzone information to tracepoints

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

vsock_virtio_transport_common.h

VSOCK: Introduce virtio_vsock_common.ko

2016-08-02 02:57:29 +03:00

workqueue.h

workqueue: rename cpu_workqueue to pool_workqueue

2013-02-13 19:29:12 -08:00

writeback.h

mm: move vmscan writes and file write accounting to the node

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

xen.h

x86: expose number of page table levels on Kconfig level

2015-04-14 16:49:02 -07:00