Oded Gabbay be5d926b5c habanalabs: add command buffer module ... This patch adds the command buffer (CB) module, which allows the user to create and destroy CBs and to map them to the user's process address-space. A command buffer is a memory blocks that reside in DMA-able address-space and is physically contiguous so it can be accessed by the device without MMU translation. The command buffer memory is allocated using the coherent DMA API. When creating a new CB, the IOCTL returns a handle of it, and the user-space process needs to use that handle to mmap the buffer to get a VA in the user's address-space. Before destroying (freeing) a CB, the user must unmap the CB's VA using the CB handle. Each CB has a reference counter, which tracks its usage in command submissions and also its mmaps (only a single mmap is allowed). The driver maintains a pool of pre-allocated CBs in order to reduce latency during command submissions. In case the pool is empty, the driver will go to the slow-path of allocating a new CB, i.e. calling dma_alloc_coherent. Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-02-18 09:46:44 +01:00
..
accessibility	…
acpi	ACPI: Set debug output flags independent of ACPICA	2019-02-07 12:24:28 +01:00
amba	…
android	binder: fix handling of misaligned binder object	2019-02-15 08:49:20 +01:00
ata	libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD	2019-02-06 12:47:09 -07:00
atm	atm: he: fix sign-extension overflow on large shift	2019-01-17 11:27:00 -08:00
auxdisplay	auxdisplay: charlcd: fix x/y command parsing	2018-12-21 21:27:21 +01:00
base	Driver core fixes for 5.0-rc6	2019-02-08 10:53:44 -08:00
bcma	…
block	for-linus-20190118	2019-01-20 09:12:50 +12:00
bluetooth	Bluetooth: hci_bcm: Handle specific unknown packets after firmware loading	2018-12-19 13:43:42 +01:00
bus	ARM: SoC driver updates	2018-12-31 17:32:35 -08:00
cdrom	gdrom: fix a memory leak bug	2018-12-29 08:20:44 -07:00
char	char: lp: mark expected switch fall-through	2019-02-13 19:45:57 +01:00
clk	clk: qcom: gcc: Use active only source for CPUSS clocks	2019-01-24 11:41:48 -08:00
clocksource	arch/csky patches for 4.21-rc1	2019-01-05 09:50:07 -08:00
connector	…
cpufreq	Merge branches 'pm-cpuidle', 'pm-cpufreq' and 'pm-sleep'	2019-01-11 10:09:51 +01:00
cpuidle	cpuidle: poll_state: Fix default time limit	2019-01-30 22:57:42 +01:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-01-31 23:09:00 -08:00
dax	mm, devm_memremap_pages: fix shutdown handling	2018-12-28 12:11:47 -08:00
dca	…
devfreq	…
dio	…
dma	dmaengine-fix-5.0-rc6	2019-02-10 10:39:37 -08:00
dma-buf	drivers/dma-buf/udmabuf.c: convert to use vm_fault_t	2019-01-04 13:13:46 -08:00
edac	EDAC, altera: Fix S10 persistent register offset	2019-01-24 17:13:59 +01:00
eisa	…
extcon	extcon: ptn5150: Fix return value check in ptn5150_i2c_probe()	2019-02-11 17:21:38 +09:00
firewire	scsi: communicate max segment size to the DMA mapping code	2019-01-22 20:40:59 -05:00
firmware	ARM: SoC fixes for linux-5.0	2019-02-08 16:23:41 -08:00
fmc	…
fpga	Merge 5.0-rc6 into char-misc-next	2019-02-11 09:05:58 +01:00
fsi	…
gnss	…
gpio	gpio: vf610: Mask all GPIO interrupts	2019-01-28 15:28:43 +01:00
gpu	drm-misc-fixes for v5.0-rc6:	2019-02-08 10:32:49 +10:00
hid	HID: debug: fix the ring buffer implementation	2019-01-29 12:09:11 +01:00
hsi	…
hv	vmbus: fix subchannel removal	2019-01-09 19:20:31 -05:00
hwmon	hwmon: (tmp421) Correct the misspelling of the tmp442 compatible attribute in OF device ID table	2019-01-17 12:54:52 -08:00
hwspinlock	hwspinlock: fix return value check in stm32_hwspinlock_probe()	2019-01-03 11:42:10 -08:00
hwtracing	coresight: Use event attributes for sink selection	2019-02-08 12:27:36 +01:00
i2c	i2c: omap: Use noirq system sleep pm ops to idle device for suspend	2019-02-05 13:13:20 +01:00
i3c	i3c: master: dw: fix deadlock	2019-01-26 11:14:25 +01:00
ide	ide: ensure atapi sense request aren't preempted	2019-01-31 08:25:09 -07:00
idle	…
iio	First set of IIO fixes for the 5.0 cycle.	2019-02-03 13:10:41 +01:00
infiniband	IB/uverbs: Fix OOPs in uverbs_user_mmap_disassociate	2019-01-29 13:57:22 -07:00
input	Mostly driver fixes, but there's a core framework fix in here too.	2019-01-31 23:22:57 -08:00
interconnect	interconnect: Revert to previous config if any request fails	2019-01-22 13:37:25 +01:00
iommu	IOMMU Fix for Linux v5.0-rc5:	2019-02-08 15:34:10 -08:00
ipack	…
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-02-10 09:54:19 -08:00
isdn	mISDN: fix a race in dev_expire_timer()	2019-02-05 16:39:29 -08:00
leds	leds: lp5523: fix a missing check of return value of lp55xx_read	2019-01-17 22:27:39 +01:00
lightnvm	lightnvm: pblk: fix use-after-free bug	2018-12-22 14:45:35 -07:00
macintosh	macintosh/via-cuda: Don't rely on Cuda to end a transfer	2019-01-22 10:21:45 +01:00
mailbox	mailbox: tegra-hsp: Use device-managed registration API	2018-12-21 22:31:26 -06:00
mcb	…
md	dm: don't use bio_trim() afterall	2019-02-06 17:24:37 -05:00
media	media: vim2m: only cancel work if it is for right context	2019-01-16 11:13:25 -05:00
memory	ARM: SoC: late updates	2019-01-05 11:30:37 -08:00
memstick	MMC core:	2018-12-28 16:52:18 -08:00
message	scsi: flip the default on use_clustering	2018-12-18 23:13:12 -05:00
mfd	mfd: Fix unmet dependency warning for MFD_TPS68470	2019-01-29 10:55:34 +01:00
misc	habanalabs: add command buffer module	2019-02-18 09:46:44 +01:00
mmc	mmc: mediatek: fix incorrect register setting of hs400_cmd_int_delay	2019-01-28 12:49:28 +01:00
mtd	mtd: rawnand: gpmi: fix MX28 bus master lockup problem	2019-02-06 09:39:22 +01:00
mux	…
net	net: dsa: b53: Fix for failure when irq is not defined in dt	2019-02-07 18:18:37 -08:00
nfc	…
ntb	Merge 5.0-rc4 into char-misc-next	2019-01-28 08:13:52 +01:00
nubus	…
nvdimm	libnvdimm/security: Require nvdimm_security_setup_events() to succeed	2019-01-21 09:57:43 -08:00
nvme	nvme-pci: fix rapid add remove sequence	2019-02-06 16:35:33 +01:00
nvmem	nvmem: allow to select i.MX nvmem driver for i.MX 7D	2019-02-03 13:09:37 +01:00
of	OF: properties: add missing of_node_put	2019-01-16 12:49:53 -06:00
opp	cpufreq: scpi/scmi: Fix freeing of dynamic OPPs	2019-01-04 12:19:40 +01:00
oprofile	…
parisc	Kconfig file consolidation for v4.21	2018-12-29 13:40:29 -08:00
parport	parport: daisy: use new parport device model	2019-02-13 19:45:56 +01:00
pci	pci-v5.0-fixes-4	2019-02-08 15:32:10 -08:00
pcmcia	Included in this update:	2019-01-05 11:23:17 -08:00
perf	perf/aux: Make perf_event accessible to setup_aux()	2019-02-08 12:27:36 +01:00
phy	USB/PHY fixes for 5.0-rc4	2019-01-25 12:57:09 -10:00
pinctrl	pinctrl: sunxi: Correct number of IRQ banks on H6 main pin controller	2019-01-22 10:52:39 +01:00
platform	Merge 5.0-rc6 into char-misc-next	2019-02-11 09:05:58 +01:00
pnp	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
power	power supply and reset changes for the v4.21 series	2018-12-28 20:22:45 -08:00
powercap	…
pps	Kconfig updates for v4.21	2018-12-29 13:03:29 -08:00
ps3	…
ptp	ptp: check that rsv field is zero in struct ptp_sys_offset_extended	2019-01-08 16:22:56 -05:00
pwm	pwm: imx: Add ipg clock operation	2018-12-24 12:06:56 +01:00
rapidio	cross-tree: phase out dma_zalloc_coherent()	2019-01-08 07:58:37 -05:00
ras	treewide: surround Kconfig file paths with double quotes	2018-12-22 00:25:54 +09:00
regulator	Merge remote-tracking branch 'regulator/topic/coupled' into regulator-next	2018-12-21 13:43:35 +00:00
remoteproc	virtio: don't allocate vqs when names[i] = NULL	2019-01-14 20:15:19 -05:00
reset	reset: uniphier-glue: Add AHCI reset control support in glue layer	2019-01-07 16:38:51 +01:00
rpmsg	…
rtc	RTC for 4.21	2019-01-01 13:24:31 -08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-02-08 11:21:54 -08:00
sbus	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next	2018-12-26 10:32:18 -08:00
scsi	Merge 5.0-rc6 into char-misc-next	2019-02-11 09:05:58 +01:00
sfi	…
sh	…
siox	…
slimbus	slimbus: core: add missing spin_lock_init on txn_lock	2019-01-22 13:34:35 +01:00
sn	…
soc	soc/fsl fixes for v5.0	2019-01-30 11:14:04 +01:00
soundwire	…
spi	cross-tree: phase out dma_zalloc_coherent()	2019-01-08 07:58:37 -05:00
spmi	…
ssb	…
staging	Staging/IIO driver fixes for 5.0-rc6	2019-02-08 10:51:59 -08:00
target	scsi: target: make the pi_prot_format ConfigFS path readable	2019-02-04 21:40:32 -05:00
tc	…
tee	OP-TEE dynamic shm log message	2018-12-31 13:06:30 -08:00
thermal	Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2019-01-23 16:23:41 +13:00
thunderbolt	…
tty	TTY/Serial fixes for 5.0-rc6	2019-02-08 10:49:55 -08:00
uio	driver: uio: fix possible use-after-free in __uio_register_device	2019-01-31 16:36:52 +01:00
usb	usb: typec: tcpm: Correct the PPS out_volt calculation	2019-01-31 09:14:00 +01:00
uwb	…
vfio	vfio-pci/nvlink2: Fix ancient gcc warnings	2019-01-23 08:20:43 -07:00
vhost	vhost: fix OOB in get_rx_bufs()	2019-01-28 22:53:09 -08:00
video	Merge 5.0-rc4 into char-misc-next	2019-01-28 08:13:52 +01:00
virt	…
virtio	virtio: drop internal struct from UAPI	2019-02-05 15:29:48 -05:00
visorbus	…
vlynq	…
vme	…
w1	treewide: surround Kconfig file paths with double quotes	2018-12-22 00:25:54 +09:00
watchdog	watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs	2019-01-07 10:10:35 +01:00
xen	arm64/xen: fix xen-swiotlb cache flushing	2019-01-23 22:14:56 +01:00
zorro	…
Kconfig	interconnect: Add generic on-chip interconnect API	2019-01-22 13:37:25 +01:00
Makefile	interconnect: Add generic on-chip interconnect API	2019-01-22 13:37:25 +01:00