AuxXxilium/linux_dsm_epyc7002
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e766fde651
linux_dsm_epyc7002/drivers
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Chris Wilson e766fde651 drm/i915: Delay semaphore submission until the start of the signaler 
Currently we submit the semaphore busywait as soon as the signaler is
submitted to HW. However, we may submit the signaler as the tail of a
batch of requests, and even not as the first context in the HW list,
i.e. the busywait may start spinning far in advance of the signaler even
starting.

If we wait until the request before the signaler is completed before
submitting the busywait, we prevent the busywait from starting too
early, if the signaler is not first in submission port.

To handle the case where the signaler is at the start of the second (or
later) submission port, we will need to delay the execution callback
until we know the context is promoted to port0. A challenge for later.

Fixes: e886196469 ("drm/i915: Use HW semaphores for inter-engine synchronisation on gen8+")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190501114541.10077-9-chris@chris-wilson.co.uk
(cherry picked from commit 0d90ccb702)
[Joonas: edited Fixes: tag into single line.]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2019-05-07 11:53:43 +03:00
..
accessibility
acpi ACPICA: Namespace: remove address node from global list after method termination 2019-04-09 10:05:11 +02:00
amba ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values. 2019-02-26 11:23:49 +00:00
android binder: fix race between munmap() and direct reclaim 2019-03-21 06:51:32 +01:00
ata libata: fix using DMA buffers on stack 2019-03-28 08:16:04 -06:00
atm
auxdisplay auxdisplay: charlcd: make backlight initial state configurable 2019-03-17 08:48:45 +01:00
base Device properties framework fix for 5.1-rc2 2019-03-22 12:08:52 -07:00
bcma
block virtio-blk: limit number of hw queues by nr_cpu_ids 2019-04-10 08:18:24 -06:00
bluetooth Bluetooth: btusb: request wake pin with NOAUTOEN 2019-04-09 17:38:24 -10:00
bus ARM: SoC driver updates for 5.1 2019-03-06 09:41:12 -08:00
cdrom cdrom: Fix race condition in cdrom_sysctl_register 2019-02-08 06:46:59 -07:00
char tpm: Fix the type of the return value in calc_tpm2_event_size() 2019-04-08 15:58:54 -07:00
clk clk: imx: Fix PLL_1416X not rounding rates 2019-04-12 14:21:43 -07:00
clocksource clocksource/drivers/clps711x: Remove board support 2019-03-24 11:30:11 +01:00
connector connector: fix unsafe usage of ->real_parent 2019-03-08 15:06:38 -08:00
cpufreq cpufreq/intel_pstate: Load only on Intel hardware 2019-04-01 23:39:23 +02:00
cpuidle cpuidle: governor: Add new governors to cpuidle_governors again 2019-03-12 23:46:55 +01:00
crypto crypto: caam - fix copy of next buffer for xcbc and cmac 2019-03-28 13:54:32 +08:00
dax device-dax for 5.1 2019-03-16 13:05:32 -07:00
dca
devfreq
dio
dma dmaengine: stm32-mdma: Revert "dmaengine: stm32-mdma: Add a check on read_u32_array" 2019-03-25 21:56:54 +05:30
dma-buf dma-buf: explicitely note that dma-fence-chains use 64bit seqno 2019-04-16 14:49:10 +02:00
edac Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-08 09:11:39 -08:00
eisa
extcon extcon: ptn5150: Fix return value check in ptn5150_i2c_probe() 2019-02-11 17:21:38 +09:00
firewire
firmware memblock: drop memblock_alloc_*_nopanic() variants 2019-03-12 10:04:02 -07:00
fmc
fpga Merge 5.0-rc6 into char-misc-next 2019-02-11 09:05:58 +01:00
fsi
gnss gnss: add driver for mediatek receivers 2019-02-15 16:54:38 +01:00
gpio gpio fixes for v5.1-rc3 2019-03-29 03:04:47 +01:00
gpu drm/i915: Delay semaphore submission until the start of the signaler 2019-05-07 11:53:43 +03:00
hid HID: input: add mapping for Assistant key 2019-04-03 13:33:25 +02:00
hsi HSI: omap_ssi_port: fix debugfs_simple_attr.cocci warnings 2019-02-14 12:36:21 +01:00
hv Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00
hwmon hwmon: (ntc_thermistor) Fix temperature type reporting 2019-03-29 09:51:44 -07:00
hwspinlock
hwtracing ARM updates for 5.1-rc1 2019-03-15 14:37:46 -07:00
i2c i2c: imx: don't leak the i2c adapter on error 2019-04-06 17:54:28 +02:00
i3c - Add a /* fall-through */ comment in the dw-i3c-master driver 2019-03-04 19:05:02 -08:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2019-03-11 09:34:00 -07:00
idle intel_idle: add support for Jacobsville 2019-02-15 10:49:14 +01:00
iio - New Drivers 2019-03-08 10:02:58 -08:00
infiniband IB/hfi1: Do not flush send queue in the TID RDMA second leg 2019-04-10 15:09:30 -03:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-03-11 10:57:11 -07:00
interconnect
iommu drm-misc-next for v5.2: 2019-04-24 10:12:50 +10:00
ipack
irqchip irqchip/irq-ls1x: Missing error code in ls1x_intc_of_init() 2019-04-05 14:37:56 +02:00
isdn mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S 2019-03-18 18:32:44 -07:00
leds leds: trigger: netdev: use memcpy in device_name_store 2019-03-30 19:09:32 +01:00
lightnvm lightnvm: pblk: fix crash in pblk_end_partial_read due to multipage bvecs 2019-04-10 12:17:01 -06:00
macintosh treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
mailbox mailbox: imx: keep MU irq working during suspend/resume 2019-03-11 02:51:43 -05:00
mcb
md dm integrity: fix deadlock with overlapping I/O 2019-04-05 18:49:08 -04:00
media media: vsp1: drm: Implement writeback support 2019-03-18 17:24:14 +02:00
memory
memstick
message
mfd mfd: sun6i-prcm: Allow to compile with COMPILE_TEST 2019-04-03 08:38:07 +01:00
misc 5.1 Merge Window Pull Request 2019-03-09 15:53:03 -08:00
mmc mmc: sdhci-omap: Don't finish_mrq() on a command error during tuning 2019-04-11 12:40:32 +02:00
mtd mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer 2019-04-05 00:39:19 +02:00
mux
net bnxt_en: Reset device on RX buffer errors. 2019-04-08 16:39:41 -07:00
nfc
ntb Fixes for switchtec debugability and mapping table entries, NTB 2019-03-15 14:32:59 -07:00
nubus
nvdimm device-dax for 5.1 2019-03-16 13:05:32 -07:00
nvme nvmet: fix discover log page when offsets are used 2019-04-11 17:28:30 +02:00
nvmem Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00
of of: fix kmemleak crash caused by imbalance in early memory reservation 2019-03-12 10:04:02 -07:00
opp PM / OPP: Update performance state when freq == old_freq 2019-03-12 09:45:56 +01:00
oprofile
parisc Revert: parisc: Use F_EXTEND() macro in iosapic code 2019-04-06 19:07:55 +02:00
parport Revert "parport: daisy: use new parport device model" 2019-03-25 14:49:00 -07:00
pci PCI: pciehp: Ignore Link State Changes after powering off a slot 2019-04-10 16:06:43 -05:00
pcmcia
perf arm64 updates for 5.1: 2019-03-10 10:17:23 -07:00
phy phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs 2019-03-26 16:48:55 +09:00
pinctrl This is the bulk of pin control changes for the v5.1 kernel cycle. 2019-03-11 11:12:50 -07:00
platform Here's more than a handful of clk driver fixes for changes that came in 2019-04-13 14:33:56 -07:00
pnp ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting 2019-02-24 21:12:01 +01:00
power power: reset: at91-reset: add support for sam9x60 SoC 2019-02-20 00:41:01 +01:00
powercap powercap/intel_rapl: add Ice Lake mobile 2019-02-18 11:31:39 +01:00
pps
ps3
ptp Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
pwm pwm: atmel: Remove useless symbolic definitions 2019-03-04 12:52:49 +01:00
rapidio rapidio/mport_cdev: mark expected switch fall-through 2019-03-07 18:32:02 -08:00
ras
regulator regulator: mc13xxx: Constify regulator_ops variables 2019-03-04 00:01:08 +00:00
remoteproc remoteproc updates for v5.1 2019-03-14 09:00:06 -07:00
reset drm/tegra: Changes for v5.2-rc1 2019-04-24 10:30:45 +10:00
rpmsg rpmsg: virtio: change header file sort style 2019-02-20 21:15:54 -08:00
rtc rtc: da9063: set uie_unsupported when relevant 2019-04-02 23:33:09 +02:00
s390 SCSI fixes on 20190329 2019-03-29 14:58:49 -07:00
sbus
scsi for-linus-20190412 2019-04-13 16:23:16 -07:00
sfi
sh
siox
slimbus
sn
soc This pull request brings in a build fix for arm64 with bcm2835 2019-03-18 10:31:24 -07:00
soundwire
spi pci-v5.1-changes 2019-03-09 14:57:08 -08:00
spmi spmi: pmic-arb: select IRQ_DOMAIN_HIERARCHY in Kconfig 2019-02-14 09:14:50 +01:00
ssb
staging Linux 5.1-rc5 2019-04-15 15:51:49 +10:00
target SCSI misc on 20190315 2019-03-16 12:51:50 -07:00
tc
tee ARM: SoC driver updates for 5.1 2019-03-06 09:41:12 -08:00
thermal Merge branches 'fixes' and 'thermal-intel' into next 2019-03-18 22:37:44 +08:00
thunderbolt
tty tty: fix NULL pointer issue when tty_port ops is not set 2019-03-28 01:21:21 +09:00
uio driver: uio: fix possible use-after-free in __uio_register_device 2019-01-31 16:36:52 +01:00
usb drm/tegra: Changes for v5.2-rc1 2019-04-24 10:30:45 +10:00
uwb
vfio vfio/type1: Limit DMA mappings per container 2019-04-03 12:43:05 -06:00
vhost virtio: fixes, cleanups 2019-03-10 12:47:57 -07:00
video fbdev changes for v5.1: 2019-03-15 14:22:59 -07:00
virt virt: vbox: Implement passing requestor info to the host for VirtualBox 6.0.x 2019-03-28 01:55:18 +09:00
virtio virtio: Honour 'may_reduce_num' in vring_create_virtqueue 2019-04-08 17:05:52 -04:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.1-rc1 tag 2019-03-11 11:22:15 -07:00
xen xen: fixes for 5.1-rc4 2019-04-07 06:12:10 -10:00
zorro
Kconfig
Makefile IOMMU Updates for Linux v5.1 2019-03-10 12:29:52 -07:00