Chris Wilson 32d94048b9 drm/i915/gem: Prepare gen7 cmdparser for async execution ... The gen7 cmdparser is primarily a promotion-based system to allow access to additional registers beyond the HW validation, and allows fallback to normal execution of the user batch buffer if valid and requires chaining. In the next patch, we will do the cmdparser validation in the pipeline asynchronously and so at the point of request construction we will not know if we want to execute the privileged and validated batch, or the original user batch. The solution employed here is to execute both batches, one with raised privileges and one as normal. This is because the gen7 MI_BATCH_BUFFER_START command cannot change privilege level within a batch and must strictly use the current privilege level (or undefined behaviour kills the GPU). So in order to execute the original batch, we need a second non-priviledged batch buffer chain from the ring, i.e. we need to emit two batches for each user batch. Inside the two batches we determine which one should actually execute, we provide a conditional trampoline to call the original batch. Implementation-wise, we create a single buffer and write the shadow and the trampoline inside it at different offsets; and bind the buffer into both the kernel GGTT for the privileged execution of the shadow and into the user ppGTT for the non-privileged execution of the trampoline and original batch. One buffer, two batches and two vma. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191211230858.599030-1-chris@chris-wilson.co.uk		2019-12-12 10:42:57 +00:00
..
accessibility
acpi	Additional ACPI updates for 5.5-rc1	2019-12-04 10:56:35 -08:00
amba
android	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
ata	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
atm
auxdisplay	auxdisplay: charlcd: deduplicate simple_strtoul()	2019-12-04 19:44:12 -08:00
base	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
bcma
block	xen: branch for v5.5-rc1	2019-12-07 14:49:20 -08:00
bluetooth	Bluetooth: btbcm: Use the BDADDR_PROPERTY quirk	2019-11-22 13:35:20 +01:00
bus	Few ti-sysc related fixes for v5.5 merge window	2019-12-06 08:26:50 -08:00
cdrom	cdrom: respect device capabilities during opening action	2019-11-26 13:02:24 -07:00
char	drm msm + fixes for 5.5-rc1	2019-12-06 10:28:09 -08:00
clk	ARM: SoC platform updates	2019-12-05 11:38:40 -08:00
clocksource	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 12:20:25 -08:00
connector
counter
cpufreq	cpufreq: tegra: Changes for v5.5-rc1	2019-12-06 08:28:13 -08:00
cpuidle	cpuidle: minor Kconfig help text fixes	2019-11-29 11:49:32 +01:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2019-12-02 17:23:21 -08:00
dax	libnvdimm for 5.5	2019-12-01 18:43:25 -08:00
dca
devfreq	PM / devfreq: Add missing locking while setting suspend_freq	2019-11-29 12:50:34 +01:00
dio
dma	dmaengine: Fix Kconfig indentation	2019-11-22 11:16:26 +05:30
dma-buf	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
edac	EDAC/altera: Use the Altera System Manager driver	2019-11-22 10:18:29 +01:00
eisa
extcon	Char/Misc driver patches for 5.5-rc1	2019-11-27 10:53:50 -08:00
firewire	FireWire (IEEE 1394) subsystem updates:	2019-12-02 14:13:00 -08:00
firmware	ARM: SoC fixes	2019-12-06 14:19:37 -08:00
fpga
fsi
gnss
gpio	gpio: pca953x: tighten up indentation	2019-12-04 19:44:14 -08:00
gpu	drm/i915/gem: Prepare gen7 cmdparser for async execution	2019-12-12 10:42:57 +00:00
greybus
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid	2019-12-01 18:20:54 -08:00
hsi
hv	Merge branch 'akpm' (patches from Andrew)	2019-12-01 20:36:41 -08:00
hwmon	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
hwspinlock
hwtracing	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
i2c	Merge branch 'i2c/for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2019-12-01 18:29:36 -08:00
i3c
ide	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
idle	cpuidle: Drop disabled field from struct cpuidle_state	2019-11-29 11:48:39 +01:00
iio	chrome platform changes for v5.5	2019-12-03 14:37:12 -08:00
infiniband	net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup	2019-12-04 12:27:13 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2019-12-07 18:33:01 -08:00
interconnect
iommu	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
ipack
irqchip	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
isdn	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
leds	Merge tag 'leds-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds	2019-12-01 16:09:28 -08:00
lightnvm
macintosh	powerpc updates for 5.5	2019-11-30 14:35:43 -08:00
mailbox	mailbox changes for v5.5	2019-12-01 18:42:02 -08:00
mcb
md	block: don't handle bio based drivers in blk_revalidate_disk_zones	2019-12-03 08:51:25 -07:00
media	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
memory	memory: tegra: Fixes for v5.5-rc1	2019-12-06 08:28:51 -08:00
memstick	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
message
mfd	chrome platform changes for v5.5	2019-12-03 14:37:12 -08:00
misc	lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has_addr	2019-12-04 19:44:13 -08:00
mmc	Driver core patches for 5.5-rc1	2019-11-27 11:06:20 -08:00
mtd	TTY/Serial patches for 5.5-rc1	2019-12-03 14:09:14 -08:00
mux
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-12-08 13:28:11 -08:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-11-22 16:27:24 -08:00
ntb	Add Hygon Device ID to the AMD NTB device driver	2019-12-07 18:38:17 -08:00
nubus
nvdimm	libnvdimm for 5.5	2019-12-01 18:43:25 -08:00
nvme	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
nvmem	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
of	Devicetree updates for v5.5:	2019-12-02 11:41:35 -08:00
opp
oprofile	Printk changes for 5.5	2019-11-25 19:40:40 -08:00
parisc
parport
pci	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
pcmcia	pcmcia: remove unused dprintk definition	2019-11-22 07:03:45 +01:00
perf
phy	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
pinctrl	Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-12-03 09:29:50 -08:00
platform	chrome platform changes for v5.5	2019-12-03 14:37:12 -08:00
pnp
power	Additional power management updates for 5.5-rc1	2019-12-04 10:48:09 -08:00
powercap
pps
ps3
ptp
pwm	pwm: Changes for v5.5-rc1	2019-12-05 11:28:14 -08:00
rapidio	drivers/rapidio/rio-access.c: fix missing include of <linux/rio_drv.h>	2019-12-04 19:44:13 -08:00
ras
regulator	Merge branch 'regulator-5.5' into regulator-next	2019-11-22 19:56:20 +00:00
remoteproc
reset	ARM: SoC-related driver updates	2019-12-05 11:43:31 -08:00
rpmsg	rpmsg updates for v5.5	2019-12-01 18:39:24 -08:00
rtc	RTC for 5.5	2019-12-03 13:31:08 -08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-12-08 13:28:11 -08:00
sbus
scsi	SCSI misc on 20191207	2019-12-08 12:23:42 -08:00
sfi
sh
siox
slimbus
soc	ARM: SoC fixes	2019-12-06 14:19:37 -08:00
soundwire
spi	Merge branch 'spi-5.5' into spi-next	2019-11-22 19:56:35 +00:00
spmi
ssb
staging	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
target	SCSI misc on 20191130	2019-12-02 13:37:02 -08:00
tc
tee	Merge mainline/master into arm/fixes	2019-12-05 13:18:54 -08:00
thermal	Merge branch 'thermal/next' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux	2019-12-05 11:21:24 -08:00
thunderbolt
tty	TTY/Serial patches for 5.5-rc1	2019-12-03 14:09:14 -08:00
uio
usb	usb, kcov: collect coverage from hub_event	2019-12-04 19:44:14 -08:00
vfio	VFIO updates for v5.5-rc1	2019-12-07 14:51:04 -08:00
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2019-12-08 13:28:11 -08:00
video	pci-v5.5-changes	2019-12-03 13:58:22 -08:00
virt	compat_ioctl: remove most of fs/compat_ioctl.c	2019-12-01 13:46:15 -08:00
virtio	virtio_balloon: fix shrinker count	2019-11-20 02:15:57 -05:00
visorbus
vlynq
vme
w1
watchdog	linux-watchdog 5.5-rc1 tag	2019-12-01 18:01:03 -08:00
xen	xen: branch for v5.5-rc1	2019-12-07 14:49:20 -08:00
zorro
Kconfig
Makefile