John Garry a229cc14f3 dma-mapping: add dma_opt_mapping_size() ... Streaming DMA mapping involving an IOMMU may be much slower for larger total mapping size. This is because every IOMMU DMA mapping requires an IOVA to be allocated and freed. IOVA sizes above a certain limit are not cached, which can have a big impact on DMA mapping performance. Provide an API for device drivers to know this "optimal" limit, such that they may try to produce mapping which don't exceed it. Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2022-07-19 06:05:41 +02:00
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ABI	Yet another hw vulnerability with a software mitigation: Processor MMIO	2022-06-14 07:43:15 -07:00
PCI	…
RCU	…
accounting	delayacct: track delays from write-protect copy	2022-06-01 15:55:25 -07:00
admin-guide	swiotlb: split up the global swiotlb lock	2022-07-13 13:23:10 +02:00
arc	…
arm	docs: arm: tcm: Fix typo in description of TCM and MMU usage	2022-06-09 12:56:33 -06:00
arm64	arm64/sme: Fix SVE/SME typo in ABI documentation	2022-06-08 18:38:31 +01:00
block	…
bpf	…
cdrom	…
core-api	dma-mapping: add dma_opt_mapping_size()	2022-07-19 06:05:41 +02:00
cpu-freq	…
crypto	…
dev-tools	…
devicetree	A set of interrupt subsystem updates:	2022-06-19 09:45:16 -05:00
doc-guide	…
driver-api	docs: Move the HTE documentation to driver-api/	2022-06-09 10:02:47 -06:00
fault-injection	…
fb	…
features	Documentation/features: Update the arch support status files	2022-06-09 09:35:57 -06:00
filesystems	ext4, doc: remove unnecessary escaping	2022-06-16 11:03:17 -04:00
firmware-guide	TTY / Serial driver changes for 5.19-rc1	2022-06-03 11:08:40 -07:00
firmware_class	…
fpga	…
gpu	…
hid	…
hwmon	…
i2c	…
ia64	…
iio	…
images	docs: add SVG version of the Linux logo	2022-06-01 09:32:45 -06:00
infiniband	…
input	documentation: Format button_dev as a pointer.	2022-06-01 09:34:28 -06:00
isdn	…
kbuild	…
kernel-hacking	…
leds	…
litmus-tests	…
livepatch	…
locking	…
loongarch	docs/LoongArch: Fix notes rendering by using reST directives	2022-06-17 22:09:05 +08:00
m68k	…
maintainer	…
mhi	…
mips	…
misc-devices	…
netlabel	…
networking	docs: networking: phy: Fix a typo	2022-06-13 23:12:44 -07:00
nios2	…
nvdimm	…
openrisc	…
parisc	…
pcmcia	…
peci	…
power	…
powerpc	…
process	scripts/check-local-export: avoid 'wait $!' for process substitution	2022-06-10 03:47:13 +09:00
riscv	Documentation: riscv: Add sv48 description to VM layout	2022-06-01 20:38:34 -07:00
s390	…
scheduler	…
scsi	…
security	…
sh	…
sound	…
sparc	…
sphinx	…
sphinx-static	…
spi	…
staging	…
target	…
timers	…
tools	…
trace	…
translations	docs/zh_CN/LoongArch: Fix notes rendering by using reST directives	2022-06-17 22:09:05 +08:00
usb	docs: usb: fix literal block marker in usbmon verification example	2022-06-09 09:50:03 -06:00
userspace-api	…
virt	…
vm	…
w1	…
watchdog	…
x86	x86/swiotlb: fix param usage in boot-options.rst	2022-06-22 12:42:08 +02:00
xtensa	…
.gitignore	…
Changes	…
CodingStyle	…
Kconfig	…
Makefile	…
SubmittingPatches	…
arch.rst	Documentation: LoongArch: Add basic documentations	2022-06-03 20:09:27 +08:00
asm-annotations.rst	…
atomic_bitops.txt	…
atomic_t.txt	…
conf.py	docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0	2022-06-01 09:26:05 -06:00
docutils.conf	…
dontdiff	…
index.rst	docs: Move the HTE documentation to driver-api/	2022-06-09 10:02:47 -06:00
memory-barriers.txt	…