Mika Kuoppala ee2413eeed drm/i915: Add mechanism to submit a context WA on ring submission ... This patch adds framework to submit an arbitrary batchbuffer on each context switch to clear residual state for render engine on Gen7/7.5 devices. The idea of always emitting the context and vm setup around each request is primary to make reset recovery easy, and not require rewriting the ringbuffer. As each request would set up its own context, leaving it to the HW to notice and elide no-op context switches, we could restart the ring at any point, and reorder the requests freely. However, to avoid emitting clear_residuals() between consecutive requests in the ringbuffer of the same context, we do want to track the current context in the ring. In doing so, we need to be careful to only record a context switch when we are sure the next request will be emitted. This security mitigation change does not trigger any performance regression. Performance is on par with current mainline/drm-tip. v2: Update vm_alias params to point to correct address space "vm" due to changes made in the patch "f21613797bae98773" v3-v4: none Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com> Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Balestrieri Francesco <francesco.balestrieri@intel.com> Cc: Bloomfield Jon <jon.bloomfield@intel.com> Cc: Dutt Sudeep <sudeep.dutt@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200306000957.2836150-1-chris@chris-wilson.co.uk		2020-03-06 08:59:06 +00:00
..
accessibility	…
acpi	ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system	2020-02-11 23:26:15 +01:00
amba	…
android	for-5.6/io_uring-vfs-2020-01-29	2020-01-29 18:53:37 -08:00
ata	libata-5.6-2020-02-05	2020-02-06 06:11:50 +00:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
auxdisplay	…
base	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
bcma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
block	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
bluetooth	Bluetooth: btrtl: Use kvmalloc for FW allocations	2020-01-24 19:57:53 +01:00
bus	bus: moxtet: fix potential stack buffer overflow	2020-02-15 10:33:19 -08:00
cdrom	…
char	Minor bug fixes for IPMI	2020-02-16 13:05:46 -08:00
clk	ARM: SoC: late updates	2020-02-08 14:17:27 -08:00
clocksource	ARM: SoC: late updates	2020-02-08 14:17:27 -08:00
connector	…
counter	…
cpufreq	Merge branch 'pm-cpufreq'	2020-02-14 10:40:48 +01:00
cpuidle	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
dax	dax: Get rid of fs_dax_get_by_host() helper	2020-01-16 09:52:27 -08:00
dca	…
devfreq	PM / devfreq: Add debugfs support with devfreq_summary file	2020-01-16 19:14:49 +09:00
dio	…
dma	ARM: Device-tree updates	2020-02-08 13:58:44 -08:00
dma-buf	…
edac	EDAC/sysfs: Remove csrow objects on errors	2020-02-13 13:29:41 +01:00
eisa	…
extcon	…
firewire	…
firmware	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
fpga	fpga: xilinx-pr-decoupler: Remove clk_get error message for probe defer	2020-01-10 12:51:56 -08:00
fsi	…
gnss	…
gpio	gpio: sifive: fix static checker warning	2020-02-10 13:54:17 +01:00
gpu	drm/i915: Add mechanism to submit a context WA on ring submission	2020-03-06 08:59:06 +00:00
greybus	…
hid	drm pull for 5.6-rc1	2020-01-30 08:04:01 -08:00
hsi	…
hv	- Most of the commits here are work to enable host-initiated hibernation	2020-02-03 14:42:03 +00:00
hwmon	hwmon: (pmbus/xdpe12284) fix typo in compatible strings	2020-02-12 12:43:01 -08:00
hwspinlock	hwspinlock: sirf: Use devm_hwspin_lock_register() to register hwlock controller	2020-01-21 16:16:36 -08:00
hwtracing	coresight: etm4x: Fix unused function warning	2020-01-14 15:38:28 +01:00
i2c	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
i3c	i3c: master: dw: reattach device on first available location of address table	2020-01-13 10:00:05 +01:00
ide	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
idle	intel_idle: Introduce 'states_off' module parameter	2020-02-03 11:57:18 +01:00
iio	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
infiniband	IB/mlx5: Use div64_u64 for num_var_hw_entries calculation	2020-02-14 15:21:52 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-02-15 16:49:25 -08:00
interconnect	…
iommu	IOMMU Updates for Linux v5.6	2020-02-05 17:49:54 +00:00
ipack	…
irqchip	irqchip/gic-v4.1: Avoid 64bit division for the sake of 32bit ARM	2020-02-09 15:47:37 -08:00
isdn	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
leds	leds: lm3532: add pointer to documentation and fix typo	2020-01-22 21:08:24 +01:00
lightnvm	…
macintosh	powerpc updates for 5.6	2020-02-04 13:06:46 +00:00
mailbox	…
mcb	…
md	block-5.6-2020-02-16	2020-02-16 12:35:52 -08:00
media	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
memory	mvebu drivers for 5.6 (part 1)	2020-01-16 10:45:44 -08:00
memstick	…
message	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
mfd	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
misc	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
mmc	ioremap changes for 5.6	2020-01-27 13:03:00 -08:00
mtd	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
mux	…
net	net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples()	2020-02-14 07:05:17 -08:00
nfc	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
ntb	…
nubus	…
nvdimm	mm: Cleanup __put_devmap_managed_page() vs ->page_free()	2020-01-31 10:30:37 -08:00
nvme	block-5.6-2020-02-16	2020-02-16 12:35:52 -08:00
nvmem	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
of	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
opp	ioremap changes for 5.6	2020-01-27 13:03:00 -08:00
oprofile	tracing: Make struct ring_buffer less ambiguous	2020-01-13 13:19:38 -05:00
parisc	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
parport	…
pci	pci-v5.6-fixes-1	2020-02-06 14:17:38 +00:00
pcmcia	…
perf	perf/smmuv3: Use platform_get_irq_optional() for wired interrupt	2020-02-10 18:14:46 +00:00
phy	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
pinctrl	pinctrl: fix pxa2xx.c build warnings	2020-02-04 03:05:24 +00:00
platform	Merge branch 'akpm' (patches from Andrew)	2020-02-04 07:24:48 +00:00
pnp	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
power	ARM: SoC platform updates	2020-02-08 13:55:25 -08:00
powercap	Merge back power capping changes for v5.6.	2020-01-13 10:32:19 +01:00
pps	…
ps3	…
ptp	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
pwm	pwm: Remove set but not set variable 'pwm'	2020-01-20 15:40:49 +01:00
rapidio	…
ras	…
regulator	- New Drivers	2020-02-03 14:51:57 +00:00
remoteproc	remoteproc: qcom: q6v5-mss: Improve readability of reset_assert	2020-01-24 09:34:07 -08:00
reset	Reset controller updates for v5.6	2020-01-10 22:20:37 -08:00
rpmsg	rpmsg: add rpmsg support for mt8183 SCP.	2020-01-20 10:29:56 -08:00
rtc	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
s390	fix style of SPDX License Identifier	2020-02-11 20:14:28 +01:00
sbus	…
scsi	SCSI misc on 20200208	2020-02-08 17:24:41 -08:00
sfi	…
sh	…
siox	siox: Use the correct style for SPDX License Identifier	2020-01-14 21:46:53 +01:00
slimbus	slimbus: qcom: add missed clk_disable_unprepare in remove	2020-01-14 21:46:48 +01:00
soc	soc/tegra: fuse: Fix build with Tegra194 configuration	2020-02-11 15:00:15 -08:00
soundwire	soundwire: cadence: fix kernel-doc parameter descriptions	2020-01-16 17:34:38 +05:30
spi	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
spmi	spmi: pmic-arb: Set lockdep class for hierarchical irq domains	2020-02-10 13:16:04 +01:00
ssb	…
staging	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
target	SCSI misc on 20200129	2020-01-29 18:16:16 -08:00
tc	The main MIPS changes for 5.6:	2020-01-31 11:28:31 -08:00
tee	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
thermal	- Fix a SEVERE docs build failure for cpu idle cooling device (Randy Dunlap)	2020-01-31 14:39:21 -08:00
thunderbolt	thunderbolt: fix memory leak of object sw	2020-01-14 15:37:41 +01:00
tty	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
uio	uio: uio_pdrv_genirq: Do not log an error when deferring probe routine.	2020-01-14 15:27:51 +01:00
usb	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
vfio	VFIO updates for v5.6-rc1	2020-02-03 22:22:05 +00:00
vhost	…
video	drm-misc-next for 5.7:	2020-02-21 05:44:40 +10:00
virt	…
virtio	virtio_balloon: Fix memory leaks on errors in virtballoon_probe()	2020-02-06 03:40:27 -05:00
visorbus	visorbus: fix uninitialized variable access	2020-01-14 15:30:35 +01:00
vlynq	…
vme	Char/Misc driver changes for 5.6-rc1	2020-01-29 10:35:54 -08:00
w1	Char/Misc driver changes for 5.6-rc1	2020-01-29 10:35:54 -08:00
watchdog	linux-watchdog 5.6-rc1 tag	2020-02-07 12:30:16 -08:00
xen	xen: branch for v5.6-rc1	2020-02-05 17:44:14 +00:00
zorro	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
Kconfig	…
Makefile	…