linux-stable/drivers/misc
farah kassabri b9d31cada7 habanalabs: change wait_for_interrupt implementation
Currently the cq counters are allocated in userspace memory,
and mapped by the driver to the device address space.

A new requirement that is part of new future API related to this one,
requires that cq counters will be allocated in kernel memory.

We leverage the existing cb_create API with KERNEL_MAPPED flag set to
allocate this memory.

That way we gain two things:
1. The memory cannot be freed while in use since it's protected
by refcount in driver.

2. No need to wake up the user thread upon each interrupt from CQ,
because the kernel has direct access to the counter. Therefore,
it can make comparison with the target value in the interrupt
handler and wake up the user thread only if the counter reaches the
target value. This is instead of waking the thread up to copy counter
value from user then go sleep again if target value wasn't reached.

Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26 08:59:09 +02:00
..
altera-stapl
bcm-vk misc: bcm-vk: fix tty registration race 2021-09-21 16:17:15 +02:00
c2port
cardreader misc: rtsx: Avoid mangling IRQ during runtime PM 2021-12-03 14:32:00 +01:00
cb710 cb710: avoid NULL pointer subtraction 2021-10-05 15:50:05 +02:00
cxl cxl: Use to_pci_driver() instead of pci_dev->driver 2021-10-18 09:20:15 -05:00
echo
eeprom Merge v5.15-rc5 into char-misc-next 2021-12-13 10:17:10 +01:00
genwqe Merge 5.15-rc3 into char-misc next 2021-09-27 15:39:40 +02:00
habanalabs habanalabs: change wait_for_interrupt implementation 2021-12-26 08:59:09 +02:00
ibmasm
lis3lv02d misc: lis3lv02d: Make lis3lv02d_remove_fs() return void 2021-10-13 14:35:20 +02:00
lkdtm lkdtm: Fix content of section containing lkdtm_rodata_do_nothing() 2021-12-16 15:54:37 -08:00
mei mei: Remove some dead code 2021-12-03 14:26:33 +01:00
ocxl drivers/misc/ocxl: remove redundant rc variable 2021-12-21 10:26:28 +01:00
pvpanic pvpanic: Indentation fixes here and there 2021-09-14 11:07:13 +02:00
sgi-gru
sgi-xp net: sgi-xp: use eth_hw_addr_set() 2021-10-29 13:17:21 +01:00
ti-st
uacce uacce: use sysfs_emit instead of sprintf 2021-12-21 10:13:34 +01:00
vmw_vmci misc: vmw_vmci: Switch to kvfree_rcu() API 2021-12-21 10:25:15 +01:00
ad525x_dpot-i2c.c misc: ad525x_dpot: Make ad_dpot_remove() return void 2021-10-13 14:35:37 +02:00
ad525x_dpot-spi.c misc: ad525x_dpot: Make ad_dpot_remove() return void 2021-10-13 14:35:37 +02:00
ad525x_dpot.c misc: ad525x_dpot: Make ad_dpot_remove() return void 2021-10-13 14:35:37 +02:00
ad525x_dpot.h misc: ad525x_dpot: Make ad_dpot_remove() return void 2021-10-13 14:35:37 +02:00
apds990x.c
apds9802als.c
atmel-ssc.c
bh1770glc.c
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
dw-xdata-pcie.c
enclosure.c misc: enclosure: replace snprintf in show functions with sysfs_emit 2021-10-22 11:25:39 +02:00
fastrpc.c misc: fastrpc: fix improper packet size calculation 2021-12-03 14:17:52 +01:00
gehc-achc.c misc: gehc: Add SPI ID table 2021-10-05 15:47:18 +02:00
hi6421v600-irq.c mfd: hi6421-spmi-pmic: Cleanup drvdata to only include regmap 2021-10-05 08:56:08 +01:00
hisi_hikey_usb.c misc: hisi_hikey_usb: change the DT schema 2021-09-14 10:57:31 +02:00
hmc6352.c
hpilo.c
hpilo.h
ibmvmc.c
ibmvmc.h
ics932s401.c
isl29003.c
isl29020.c
Kconfig misc: HI6421V600_IRQ should depend on HAS_IOMEM 2021-10-05 16:07:56 +02:00
kgdbts.c
lattice-ecp3-config.c
Makefile IIO / Staging driver update for 5.15-rc1 2021-09-01 09:45:57 -07:00
pch_phub.c
pci_endpoint_test.c pci-v5.15-changes 2021-09-07 19:13:42 -07:00
phantom.c
qcom-coincell.c
sram-exec.c
sram.c misc: sram: Add compatible string for Tegra234 SYSRAM 2021-12-08 15:16:05 +01:00
sram.h
tifm_7xx1.c tifm: Remove usage of the deprecated "pci-dma-compat.h" API 2021-09-21 17:33:31 +02:00
tifm_core.c tifm: Remove usage of the deprecated "pci-dma-compat.h" API 2021-09-21 17:33:31 +02:00
tsl2550.c
vmw_balloon.c
xilinx_sdfec.c