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80fa64d62067ea7390cd27d924dcb7c028e455e9
linux/drivers
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Chris Wilson 80fa64d620 drm/i915: Only apply a rmw mmio update if the value changes 
If we try to clear, or even set, a bit in the register that doesn't
change the register state; skip the write. There's a slight danger in
that the register acts as a latch-on-write, but I do not think we use a
rmw cycle with any such latch registers.

Suggested-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190917080029.27632-1-chris@chris-wilson.co.uk
2019-09-17 15:25:40 +01:00
..
accessibility
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acpi
drivers/acpi/scan.c: document why we don't need the device_hotplug_lock
2019-08-03 07:02:01 -07:00
amba
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
android
binder: prevent transactions to context manager from its own process.
2019-07-24 11:02:28 +02:00
ata
ata: libahci: do not complain in case of deferred probe
2019-07-31 08:51:17 -06:00
atm
atm: idt77252: Remove call to memset after dma_alloc_coherent
2019-07-15 11:06:27 -07:00
auxdisplay
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
base
Merge tag 'char-misc-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2019-07-28 10:26:10 -07:00
bcma
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block
nbd: replace kill_bdev() with __invalidate_device() again
2019-07-31 08:51:56 -06:00
bluetooth
Bluetooth: hci_uart: check for missing tty operations
2019-07-31 13:17:33 -07:00
bus
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
cdrom
docs: cdrom: convert docs to ReST and rename to *.rst
2019-06-14 14:20:46 -06:00
char
tpm: tpm_ibm_vtpm: Fix unallocated banks
2019-08-05 00:55:00 +03:00
clk
clk: renesas: cpg-mssr: Fix reset control race condition
2019-07-22 15:04:54 -07:00
clocksource
clocksource/drivers/npcm: Fix misuse of GENMASK macro
2019-07-10 11:05:26 +02:00
connector
connector: remove redundant input callback from cn_dev
2019-07-21 13:31:14 -07:00
counter
Merge tag 'staging-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
2019-07-11 15:36:02 -07:00
cpufreq
cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init()
2019-07-23 09:49:10 +02:00
cpuidle
Merge branch 'pm-cpufreq'
2019-07-18 09:49:30 +02:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2019-07-19 12:23:37 -07:00
dax
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
dca
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devfreq
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dio
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dma
Merge tag 'dmaengine-5.3-rc1' of git://git.infradead.org/users/vkoul/slave-dma
2019-07-17 09:55:43 -07:00
dma-buf
dma-fence: Store the timestamp in the same union as the cb_list
2019-08-17 18:46:33 +01:00
edac
EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec
2019-06-27 10:24:47 -07:00
eisa
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extcon
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
firewire
firewire: mark expected switch fall-throughs
2019-07-25 20:09:37 -05:00
firmware
Merge branch 'for-linus-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft
2019-07-26 09:43:43 -07:00
fpga
fpga-manager: altera-ps-spi: Fix build error
2019-07-24 11:29:41 +02:00
fsi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 469
2019-06-19 17:09:11 +02:00
gnss
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gpio
gpiolib: Preserve desc->flags when setting state
2019-07-29 00:57:39 +02:00
gpu
drm/i915: Only apply a rmw mmio update if the value changes
2019-09-17 15:25:40 +01:00
hid
Merge tag 'v5.2' into next
2019-07-15 09:42:32 -07:00
hsi
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hv
proc/sysctl: add shared variables for range check
2019-07-18 17:08:07 -07:00
hwmon
hwmon: (nct6775) Fix register address and added missed tolerance for nct6106
2019-07-21 19:18:45 -07:00
hwspinlock
hwspinlock: add the 'in_atomic' API
2019-06-29 21:08:14 -07:00
hwtracing
coresight: Make the coresight_device_fwnode_match declaration's fwnode parameter const
2019-07-12 14:42:05 -07:00
i2c
i2c: s3c2410: Mark expected switch fall-through
2019-08-01 22:24:16 +02:00
i3c
Merge tag 'i3c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
2019-07-09 09:04:31 -07:00
ide
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
idle
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iio
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
infiniband
RDMA/hns: Fix error return code in hns_roce_v1_rsv_lp_qp()
2019-08-01 12:53:53 -04:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-07-20 12:22:30 -07:00
interconnect
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iommu
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2019-07-29 11:34:12 -07:00
ipack
Merge tag 'tty-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2019-07-11 15:38:21 -07:00
irqchip
Merge tag 'irqchip-fixes-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
2019-08-01 20:21:00 +02:00
isdn
ISDN: hfcsusb: checking idx of ep configuration
2019-07-15 11:10:31 -07:00
leds
Merge tag 'leds-for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
2019-07-09 08:59:39 -07:00
lightnvm
lightnvm: fix uninitialized pointer in nvm_remove_tgt()
2019-06-21 03:14:30 -06:00
macintosh
drivers/macintosh/smu.c: Mark expected switch fall-through
2019-07-31 21:44:45 +10:00
mailbox
Merge tag 'mailbox-v5.3' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2019-07-14 16:36:51 -07:00
mcb
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md
dm table: fix various whitespace issues with recent DAX code
2019-07-30 18:59:24 -04:00
media
Merge tag 'media/v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2019-07-22 09:01:47 -07:00
memory
Merge tag 'kbuild-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2019-07-20 09:34:55 -07:00
memstick
Merge tag 'mmc-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
2019-07-11 18:11:21 -07:00
message
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-07-11 15:14:01 -07:00
mfd
Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-07-15 20:18:40 -07:00
misc
misc/mei/hdcp: Fill transcoder index in port info
2019-08-30 14:08:29 +05:30
mmc
mmc: mmc_spi: Enable stable writes
2019-07-22 15:31:00 +02:00
mtd
Merge tag 'mtd/fixes-for-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
2019-08-04 16:37:08 -07:00
mux
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net
Merge tag 'Wimplicit-fallthrough-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
2019-07-27 11:04:18 -07:00
nfc
nfc: st-nci: remove redundant assignment to variable r
2019-07-02 12:00:50 -07:00
ntb
Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb
2019-07-21 09:46:59 -07:00
nubus
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nvdimm
Merge tag 'libnvdimm-fixes-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2019-07-27 08:25:51 -07:00
nvme
Revert "nvme-pci: don't create a read hctx mapping without read queues"
2019-07-23 17:47:02 +02:00
nvmem
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
of
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2019-07-17 11:26:09 -07:00
opp
Merge tag 'pci-v5.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2019-07-15 20:44:49 -07:00
oprofile
vfs: Convert oprofilefs to use the new mount API
2019-07-04 22:01:59 -04:00
parisc
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parport
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
pci
Merge tag 'ntb-5.3' of git://github.com/jonmason/ntb
2019-07-21 09:46:59 -07:00
pcmcia
Merge tag 'docs-5.3' of git://git.lwn.net/linux
2019-07-09 12:34:26 -07:00
perf
drivers/perf: arm_pmu: Fix failure path in PM notifier
2019-07-29 11:43:48 +01:00
phy
Merge tag 'phy-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
2019-07-01 15:04:59 +02:00
pinctrl
Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
2019-07-13 15:02:27 -07:00
platform
platform/x86: pcengines-apuv2: use KEY_RESTART for front button
2019-07-29 18:24:59 +03:00
pnp
docs: driver-api: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
power
Merge tag 'for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
2019-07-15 21:06:15 -07:00
powercap
powercap: Invoke powercap_init() and rapl_init() earlier
2019-07-22 11:23:00 +02:00
pps
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
2019-07-16 19:23:24 -07:00
ps3
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ptp
ptp: add QorIQ PTP support for DPAA2
2019-06-15 13:43:06 -07:00
pwm
Merge tag 'pwm/for-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
2019-07-09 08:57:45 -07:00
rapidio
Merge branch 'akpm' (patches from Andrew)
2019-07-17 08:58:04 -07:00
ras
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regulator
Merge tag 'mfd-next-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
2019-07-15 20:18:40 -07:00
remoteproc
Merge tag 'rproc-v5.3' of git://github.com/andersson/remoteproc
2019-07-17 11:44:41 -07:00
reset
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-07-19 17:13:56 -07:00
rpmsg
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rtc
Merge tag 'rtc-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2019-07-17 10:03:50 -07:00
s390
Merge tag 's390-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2019-08-02 15:13:27 -07:00
sbus
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scsi
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2019-08-02 14:46:33 -07:00
sfi
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sh
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siox
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slimbus
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sn
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soc
Merge branch 'pdf_fixes_v1' of https://git.linuxtv.org/mchehab/experimental into mauro
2019-07-22 13:51:20 -06:00
soundwire
Merge tag 'soundwire-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next
2019-07-05 08:15:08 +02:00
spi
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
spmi
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ssb
ssb/gpio: Remove unnecessary WARN_ON from driver_gpio
2019-06-25 08:05:34 +03:00
staging
Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2019-07-16 12:21:41 -07:00
target
scsi: target: cxgbit: add support for IEEE_8021QAZ_APP_SEL_STREAM selector
2019-07-22 17:04:20 -04:00
tc
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tee
…
thermal
int340X/processor_thermal_device: Fix proc_thermal_rapl_remove()
2019-07-23 09:36:07 +02:00
thunderbolt
Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2019-07-12 12:24:03 -07:00
tty
Merge tag 'tty-5.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2019-07-28 10:18:33 -07:00
uio
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
usb
xhci: Fix crash if scatter gather is used with Immediate Data Transfer (IDT).
2019-07-25 11:26:42 +02:00
uwb
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
vfio
Merge tag 'vfio-v5.3-rc1' of git://github.com/awilliam/linux-vfio
2019-07-17 11:23:13 -07:00
vhost
vhost: disable metadata prefetch optimization
2019-07-26 07:49:29 -04:00
video
video: omapfb2: Make standard and custom panel drivers mutually exclusive
2019-08-16 21:10:09 +02:00
virt
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virtio
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
visorbus
bus_find_device: Unify the match callback with class_find_device
2019-06-24 05:22:31 +02:00
vlynq
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vme
…
w1
docs: driver-api: add a series of orphaned documents
2019-07-15 11:03:02 -03:00
watchdog
watchdog: digicolor_wdt: Remove unused variable in dc_wdt_probe
2019-07-15 08:49:11 +02:00
xen
Merge tag 'for-linus-5.3a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2019-08-02 15:26:48 -07:00
zorro
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Kconfig
fmc: Delete the FMC subsystem
2019-06-12 14:23:50 +02:00
Makefile
fmc: Delete the FMC subsystem
2019-06-12 14:23:50 +02:00