Chris Wilson 56f581bad4 drm/i915/gt: Only transfer the virtual context to the new engine if active ... One more complication of preempt-to-busy with respect to the virtual engine is that we may have retired the last request along the virtual engine at the same time as preparing to submit the completed request to a new engine. That submit will be shortcircuited, but not before we have updated the context with the new register offsets and marked the virtual engine as bound to the new engine (by calling swap on ve->siblings[]). As we may have just retired the completed request, we may also be in the middle of calling virtual_context_exit() to turn off the power management associated with the virtual engine, and that in turn walks the ve->siblings[]. If we happen to call swap() on the array as we walk, we will call intel_engine_pm_put() twice on the same engine. In this patch, we prevent this by only updating the bound engine after a successful submission which weeds out the already completed requests. Alternatively, we could walk a non-volatile array for the pm, such as using the engine->mask. The small advantage to performing the update after the submit is that we then only have to do a swap for active requests. Fixes: 22b7a426bb ("drm/i915/execlists: Preempt-to-busy") References: 6d06779e86 ("drm/i915: Load balancing across a virtual engine" Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: "Nayana, Venkata Ramana" <venkata.ramana.nayana@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200731154834.8378-3-chris@chris-wilson.co.uk Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>		2020-09-07 14:23:50 +03:00
..
accessibility	TTY/Serial patches for 5.9-rc1	2020-08-06 14:56:11 -07:00
acpi	More ACPI updates for 5.9-rc1	2020-08-15 08:18:22 -07:00
amba	…
android	drivers: android: Fix the SPDX comment style	2020-07-29 17:05:44 +02:00
ata	…
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-08-05 20:13:21 -07:00
auxdisplay	Minor cleanup for auxdisplay:	2020-08-06 18:09:34 -07:00
base	More power management updates for 5.9-rc1	2020-08-07 13:13:09 -07:00
bcma	bcma: gpio: Use irqchip template	2020-08-02 18:26:51 +03:00
block	block-5.9-2020-08-14	2020-08-15 20:36:42 -07:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2020-07-31 15:11:52 -07:00
bus	MIPS upates for v5.9	2020-08-06 10:54:07 -07:00
cdrom	…
char	Linux 5.8	2020-08-11 11:58:31 +10:00
clk	More ACPI updates for 5.9-rc1	2020-08-15 08:18:22 -07:00
clocksource	RISC-V: Remove CLINT related code from timer and arch	2020-08-20 10:58:13 -07:00
connector	…
counter	…
cpufreq	cpufreq: intel_pstate: Implement passive mode with HWP enabled	2020-08-11 17:29:45 +02:00
cpuidle	powerpc updates for 5.9	2020-08-07 10:33:50 -07:00
crypto	virtio: fixes, features	2020-08-11 14:34:17 -07:00
dax	libnvdimm for 5.9	2020-08-11 10:59:19 -07:00
dca	…
devfreq	PM / devfreq: Fix the wrong end with semicolon	2020-07-30 17:22:58 +09:00
dio	…
dma	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-08-07 21:14:30 -07:00
dma-buf	A set of locking fixes and updates:	2020-08-10 19:07:44 -07:00
edac	EDAC/{i7core,sb,pnd2,skx}: Fix error event severity	2020-08-18 15:40:30 +02:00
eisa	…
extcon	…
firewire	…
firmware	efi/libstub: Handle unterminated cmdline	2020-08-20 11:18:58 +02:00
fpga	Linux 5.8-rc7	2020-07-27 11:49:37 +02:00
fsi	…
gnss	…
gpio	This is the bulk of GPIO changes for the v5.9 kernel cycle:	2020-08-05 12:56:27 -07:00
gpu	drm/i915/gt: Only transfer the virtual context to the new engine if active	2020-09-07 14:23:50 +03:00
greybus	greybus: Use fallthrough pseudo-keyword	2020-07-29 16:58:08 +02:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2020-08-10 16:33:54 -07:00
hsi	…
hv	hyperv-fixes for 5.9-rc	2020-08-14 13:31:25 -07:00
hwmon	pwm: Changes for v5.9-rc1	2020-08-14 16:00:09 -07:00
hwspinlock	…
hwtracing	…
i2c	More ACPI updates for 5.9-rc1	2020-08-15 08:18:22 -07:00
i3c	…
ide	…
idle	Remove uninitialized_var() macro for v5.9-rc1	2020-08-04 13:49:43 -07:00
iio	…
infiniband	Revert "RDMA/hns: Reserve one sge in order to avoid local length error"	2020-08-20 08:35:19 -03:00
input	Cleanup, SECCOMP_FILTER support, message printing fixes, and other	2020-08-15 18:50:32 -07:00
interconnect	Char/Misc driver patches for 5.9-rc1	2020-08-05 11:43:47 -07:00
iommu	dma-pool: fix coherent pool allocations for IOMMU mappings	2020-08-14 16:27:00 +02:00
ipack	…
irqchip	The usual boring updates from the interrupt subsystem:	2020-08-04 18:11:58 -07:00
isdn	mISDN: Don't try to print a sockptr_t from debug logging code.	2020-07-24 16:36:13 -07:00
leds	LEDs changes for 5.9-rc1.	2020-08-05 19:24:27 -07:00
lightnvm	…
macintosh	powerpc updates for 5.9	2020-08-07 10:33:50 -07:00
mailbox	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
mcb	…
md	block-5.9-2020-08-14	2020-08-15 20:36:42 -07:00
media	IOMMU Updates for Linux v5.9	2020-08-11 14:13:24 -07:00
memory	IOMMU Updates for Linux v5.9	2020-08-11 14:13:24 -07:00
memstick	MMC core:	2020-08-05 13:23:24 -07:00
message	…
mfd	- Core Frameworks	2020-08-15 08:09:38 -07:00
misc	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-08-07 21:14:30 -07:00
mmc	This tree adds the sched_set_fifo*() encapsulation APIs to remove	2020-08-06 11:55:43 -07:00
most	drivers: most: add USB adapter driver	2020-07-31 14:38:12 +02:00
mtd	This pull request contains changes for JFFS2, UBI and UBIFS	2020-08-10 18:20:04 -07:00
mux	…
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-08-23 10:52:33 -07:00
nfc	…
ntb	ntb: intel: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
nubus	…
nvdimm	mm: add thp_size	2020-08-14 19:56:56 -07:00
nvme	for-5.9/block-merge-20200804	2020-08-05 11:12:34 -07:00
nvmem	nvmem: qcom-spmi-sdam: Enable multiple devices	2020-07-29 17:12:09 +02:00
of	of: address: Work around missing device_type property in pcie nodes	2020-08-19 16:30:57 -06:00
opp	opp: Enable resources again if they were disabled earlier	2020-08-20 11:30:22 +05:30
oprofile	…
parisc	Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2020-08-12 12:41:15 -07:00
parport	…
pci	s390 fixes for 5.9-rc2	2020-08-22 10:12:49 -07:00
pcmcia	…
perf	It looks like a smaller batch of clk updates this time around. In the core	2020-08-07 13:35:51 -07:00
phy	…
pinctrl	This is the bulk of the pin control changes for the v5.9	2020-08-09 12:52:28 -07:00
platform	linux-watchdog 5.9-rc1 tag	2020-08-12 12:13:44 -07:00
pnp	…
power	power supply and reset changes for the v5.9 series	2020-08-07 21:27:37 -07:00
powercap	This tree adds the sched_set_fifo*() encapsulation APIs to remove	2020-08-06 11:55:43 -07:00
pps	…
ps3	…
ptp	ptp: ptp_clockmatrix: use i2c_master_send for i2c write	2020-08-19 16:23:22 -07:00
pwm	pwm: Changes for v5.9-rc1	2020-08-14 16:00:09 -07:00
rapidio	rapidio/rio_mport_cdev: use array_size() helper in copy_{from,to}_user()	2020-08-12 10:58:01 -07:00
ras	…
regulator	Merge remote-tracking branch 'regulator/for-5.9' into regulator-next	2020-07-30 23:27:08 +01:00
remoteproc	remoteproc updates for v5.9	2020-08-11 11:17:45 -07:00
reset	SOC: TI Keystone driver update for v5.9	2020-07-27 14:24:51 +02:00
rpmsg	…
rtc	RTC for 5.9	2020-08-12 17:17:00 -07:00
s390	s390 fixes for 5.9-rc2	2020-08-22 10:12:49 -07:00
sbus	…
scsi	Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe"	2020-08-17 22:43:55 -04:00
sfi	…
sh	iomap: constify ioreadX() iomem argument (as in generic implementation)	2020-08-14 19:56:57 -07:00
siox	…
slimbus	…
soc	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-08-07 21:14:30 -07:00
soundwire	…
spi	spi: Fixes for v5.9	2020-08-18 14:27:12 -07:00
spmi	…
ssb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-08-05 20:13:21 -07:00
staging	pci-v5.9-changes	2020-08-07 18:48:15 -07:00
target	SCSI misc on 20200814	2020-08-14 16:01:59 -07:00
tc	…
tee	…
thermal	- Core Frameworks	2020-08-15 08:09:38 -07:00
thunderbolt	thunderbolt: merge fix for kunix_resource changes	2020-08-09 11:06:10 -07:00
tty	TTY/Serial patches for 5.9-rc1	2020-08-06 14:56:11 -07:00
uio	…
usb	media updates for v5.9-rc1	2020-08-07 13:00:53 -07:00
vdpa	virtio: fixes, features	2020-08-11 14:34:17 -07:00
vfio	vfio/type1: Add proper error unwind for vfio_iommu_replay()	2020-08-17 11:09:13 -06:00
vhost	virtio: fixes, features	2020-08-11 14:34:17 -07:00
video	drm-misc-next for 5.10:	2020-08-28 12:38:06 +10:00
virt	…
virtio	virtio: fix build for configs without dma-bufs	2020-08-19 06:43:28 +02:00
visorbus	…
vlynq	…
vme	…
w1	…
watchdog	linux-watchdog 5.9-rc1 tag	2020-08-12 12:13:44 -07:00
xen	xen: branch for v5.9-rc1b	2020-08-14 13:34:37 -07:00
zorro	…
Kconfig	…
Makefile	…