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f30d3ced9f
linux/drivers/char
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Chris Wilson f30d3ced9f agp/intel: Reinforce the barrier after GTT updates 
After changing the timing between GTT updates and execution on the GPU,
we started seeing sporadic failures on Ironlake. These were narrowed
down to being an insufficiently strong enough barrier/delay after
updating the GTT and scheduling execution on the GPU. By forcing the
uncached read, and adding the missing barrier for the singular
insert_page (relocation paths), the sporadic failures go away.

Fixes: 983d308cb8 ("agp/intel: Serialise after GTT updates")
Fixes: 3497971a71 ("agp/intel: Flush chipset writes after updating a single PTE")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Cc: stable@vger.kernel.org # v4.0+
Link: https://patchwork.freedesktop.org/patch/msgid/20200410083535.25464-1-chris@chris-wilson.co.uk
2020-04-10 14:56:11 +01:00
..
agp agp/intel: Reinforce the barrier after GTT updates 2020-04-10 14:56:11 +01:00
hw_random treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
ipmi drivers: ipmi: fix off-by-one bounds check that leads to a out-of-bounds write 2020-01-20 11:01:00 -06:00
mwave treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
pcmcia netdev: pass the stuck queue to the timeout handler 2019-12-12 21:38:57 -08:00
tpm tpm: Add tpm_version_major sysfs file 2020-01-22 10:46:51 +02:00
xilinx_hwicap treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
xillybus char: xillybus: use devm_platform_ioremap_resource() to simplify code 2019-11-05 18:29:21 +01:00
adi.c char: sparc64: Add privileged ADI driver 2018-06-05 11:24:55 -07:00
apm-emulation.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
applicom.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
applicom.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bsr.c Merge 5.2-rc4 into char-misc-next 2019-06-09 09:11:21 +02:00
ds1620.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
dsp56k.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
dtlk.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
efirtc.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
hangcheck-timer.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 405 2019-06-05 17:37:13 +02:00
hpet.c char: hpet: Fix out-of-bounds read bug 2020-01-30 06:58:33 +01:00
Kconfig char: Fix Kconfig indentation 2019-11-20 15:09:48 +01:00
lp.c lp: fix sparc64 LPSETTIMEOUT ioctl 2019-11-13 19:08:22 +08:00
Makefile char: remove the SGI tiocx/mbcs driver 2019-08-16 11:33:56 -07:00
mem.c Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
misc.c char: misc: Move EXPORT_SYMBOL immediately next to the functions/varibles 2019-05-24 18:00:41 +02:00
mspec.c char/mspec: remove SGI SN2 support 2019-08-16 11:33:56 -07:00
nsc_gpio.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nvram.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nwbutton.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nwbutton.h treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
nwflash.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
pc8736x_gpio.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
powernv-op-panel.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ppdev.c compat_ioctl: remove most of fs/compat_ioctl.c 2019-12-01 13:46:15 -08:00
ps3flash.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164 2019-05-30 11:26:38 -07:00
random.c random: remove some dead code of poolinfo 2020-01-07 17:08:13 -05:00
raw.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
rtc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
scx200_gpio.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sonypi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
tb0219.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
tlclk.c tlclk: clean an indentation issue, remove extraneous tabs 2018-11-11 12:58:27 -08:00
toshiba.c toshiba: Add correct printk log level while emitting error log 2019-09-04 13:42:43 +02:00
ttyprintk.c ttyprintk: fix a potential deadlock in interrupt context issue 2020-01-14 14:37:54 +01:00
uv_mmtimer.c
virtio_console.c Pipework for general notification queue 2019-11-30 14:12:13 -08:00