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1c7eaac737
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Daniel Vetter 1c7eaac737 drm/i915: apply CS reg readback trick against missed IRQ on snb 
Ben Widawsky reported missed IRQ issues and this patch here helps.

We have one other missed IRQ report still left on snb, reported by QA:

https://bugs.freedesktop.org/show_bug.cgi?id=46145

This is _not_ a regression due to the forcewake voodoo though, it
started showing up before that was applied and has been on-and-off for
the past few weeks. According to QA this patch does not help. But the
missed IRQ is always from the blt ring (despite running piglit, so
also render activity expected), so I'm hopefully that this is an issue
with the blt ring itself.

Tested-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-01 12:30:24 +02:00
..
accessibility
acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
amba
ata 1) AHCI regression fix. A recent "make driver conform to spec" change 2012-03-22 20:22:30 -07:00
atm Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
auxdisplay
base Merge branch 'for-linus-3.4' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf 2012-03-28 15:02:41 -07:00
bcma
block Merge branch 'akpm' (Andrew's patch-bomb) 2012-03-28 17:19:28 -07:00
bluetooth Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
cdrom powerpc: Remove some of the legacy iSeries specific device drivers 2012-03-16 09:28:05 +11:00
char Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-03-29 18:12:23 -07:00
clk clk: make CONFIG_COMMON_CLK invisible 2012-03-19 09:37:11 +00:00
clocksource Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
connector
cpufreq Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
cpuidle Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
crypto Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-03-22 18:15:32 -07:00
dca
devfreq ARM: global cleanups 2012-03-27 16:03:32 -07:00
dio
dma MTD merge for 3.4 2012-03-30 17:31:56 -07:00
edac Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 2012-03-28 14:24:40 -07:00
eisa
firewire Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
firmware
gpio Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-03-29 16:53:48 -07:00
gpu drm/i915: apply CS reg readback trick against missed IRQ on snb 2012-04-01 12:30:24 +02:00
hid Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-03-23 14:39:09 -07:00
hv Tools: hv: Support enumeration from all the pools 2012-03-16 13:36:04 -07:00
hwmon MFD changes for 3.4 2012-03-28 13:56:35 -07:00
hwspinlock
i2c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
ide Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
idle drivers/idle/intel_idle.c: fix confusing code identation 2012-03-21 17:54:54 -07:00
ieee802154
infiniband Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-03-29 23:17:44 -07:00
iommu The IOMMU updates for this round are not very large patch-wise. But 2012-03-23 14:15:07 -07:00
isdn Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
leds MFD changes for 3.4 2012-03-28 13:56:35 -07:00
lguest
macintosh Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
mca
md dm: add verity target 2012-03-28 18:43:38 +01:00
media ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
memstick memstick: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:19 +08:00
message Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
mfd Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
misc Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
mmc MTD merge for 3.4 2012-03-30 17:31:56 -07:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-03-31 13:42:57 -07:00
net MTD merge for 3.4 2012-03-30 17:31:56 -07:00
nfc
nubus Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
of GPIO changes for v3.4 2012-03-28 14:08:46 -07:00
oprofile tidy up after d_make_root() conversion 2012-03-20 21:29:37 -04:00
parisc Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
parport
pci ASPM: Fix pcie devices with non-pcie children 2012-03-31 12:49:56 -07:00
pcmcia Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia 2012-03-29 16:00:48 -07:00
pinctrl
platform Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
pnp Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-03-30 16:45:39 -07:00
power Various small bugfixes and enhancements, plus two new drivers: 2012-03-30 16:09:02 -07:00
pps
ps3
ptp phc: Update author's email address. 2012-03-17 01:41:43 -07:00
rapidio rapidio/tsi721: fix bug in register offset definitions 2012-03-15 17:03:03 -07:00
regulator ARM: driver specific updates 2012-03-27 16:41:24 -07:00
remoteproc
rpmsg
rtc ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
s390 Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
sbus Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
scsi SCSI updates on 20120331 2012-03-31 13:31:23 -07:00
sfi
sh SuperH updates for 3.4 merge window 2012-03-30 00:09:17 -07:00
sn
spi Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-03-29 15:34:57 -07:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-03-20 21:04:47 -07:00
staging Documentation: remove references to /etc/modprobe.conf 2012-03-30 16:03:15 -07:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-03-22 12:38:04 -07:00
tc
thermal thermal: Fix for setting the thermal zone mode to enable/disable 2012-03-22 01:10:18 -04:00
tty Documentation: remove references to /etc/modprobe.conf 2012-03-30 16:03:15 -07:00
uio
usb Documentation: remove references to /etc/modprobe.conf 2012-03-30 16:03:15 -07:00
uwb uwb: use for_each_clear_bit() 2012-03-23 16:58:34 -07:00
vhost Merge branch 'vhost-net' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost 2012-03-23 14:46:48 -04:00
video ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
virt
virtio virtio-pci: switch to PM ops macro to initialise PM functions 2012-03-31 08:09:51 +05:30
vlynq
w1
watchdog ARM: cleanups of io includes 2012-03-29 18:02:10 -07:00
xen One tiny feature that accidentally got lost in the initial git pull: 2012-03-24 12:20:25 -07:00
zorro
Kconfig remoteproc/rpmsg: new subsystem 2012-03-27 16:30:09 -07:00
Makefile remoteproc/rpmsg: new subsystem 2012-03-27 16:30:09 -07:00