davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
0ef82af725
kernel-ark/drivers
History
Chris Wilson 0ef82af725 drm/i915: Pad ringbuffer with NOOPs before wrapping 
According to the docs, the ringbuffer is not allowed to wrap in the middle
of an instruction.

G45 PRM, Vol 1b, p101:
  While the “free space” wrap may allow commands to be wrapped around the
  end of the Ring Buffer, the wrap should only occur between commands.
  Padding (with NOP) may be required to follow this restriction.

Do as commanded.

[Having seen bug reports where there is evidence of split commands, but
apparently the GPU has continued on merrily before a bizarre and untimely
death, this may or may not fix a few random hangs.]

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
CC: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
2009-09-06 11:29:06 -07:00
..
accessibility
acpi ACPI: don't free non-existent backlight in acpi video module 2009-08-28 15:17:07 -04:00
amba [ARM] amba: fix amba device resources 2009-07-05 22:39:08 +01:00
ata ata_piix: parallel scanning on PATA needs an extra locking 2009-08-31 17:25:00 -10:00
atm
auxdisplay
base PM / Driver Core: Kill dev_pm_ops platform warning for now 2009-08-10 23:41:18 +02:00
block mg_disk: Add missing ready status check on mg_write() 2009-07-28 08:57:33 +02:00
bluetooth headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
cdrom
char agp/intel: support for new chip variant of IGDNG mobile 2009-09-02 10:55:02 -07:00
clocksource sh: CMT suspend/resume 2009-08-15 12:58:45 +09:00
connector connector: maintainer/mail update. 2009-07-21 12:43:51 -07:00
cpufreq [CPUFREQ] Make cpufreq suspend code conditional on powerpc. 2009-08-04 14:32:11 -04:00
cpuidle
crypto
dca
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-07-30 16:46:31 -07:00
edac amd64_edac: print debug statements only on error 2009-08-04 12:10:06 +02:00
eisa
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-07-06 14:03:44 -07:00
firmware
gpio headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
gpu drm/i915: Pad ringbuffer with NOOPs before wrapping 2009-09-06 11:29:06 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2009-07-22 09:30:07 -07:00
hwmon hwmon: (asus_atk0110) Fix upper limit readings 2009-07-28 16:31:39 +02:00
i2c i2c-stu300: I2C STU300 stability updates 2009-08-20 22:27:58 +01:00
ide ide-tape: Don't leak kernel stack information 2009-07-21 20:36:25 -07:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-07-06 14:03:44 -07:00
ieee802154
infiniband Merge branches 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linus 2009-06-23 10:38:47 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-08-24 12:25:27 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-08-04 15:38:34 -07:00
leds leds: after setting inverted attribute, we must update the LED 2009-08-26 20:06:53 -07:00
lguest lguest and virtio: cleanup struct definitions to Linux style. 2009-07-30 16:03:46 +09:30
macintosh m68k: count can reach 51, not 50 2009-08-26 23:14:49 +02:00
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2009-08-18 13:54:08 -07:00
media V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors. 2009-08-31 02:24:54 -03:00
memstick
message fusion: mptsas, fix lock imbalance 2009-06-22 08:54:14 -05:00
mfd mfd: twl4030 irq fixes 2009-08-04 20:31:32 +02:00
misc cb710: use SG_MITER_TO_SG/SG_MITER_FROM_SG 2009-07-31 12:28:46 +02:00
mmc drivers/mmc: correct error-handling code 2009-08-07 10:39:56 -07:00
mtd [ARM] Orion NAND: Make asm volatile avoid GCC pushing ldrd out of the loop 2009-08-24 11:56:00 -04:00
net virtio: net refill on out-of-memory 2009-08-26 12:22:32 -07:00
nubus
of of/mdio: Add support function for Ethernet fixed-link property 2009-07-22 09:27:18 -07:00
oprofile oprofile: reset bt_lost_no_mapping with other stats 2009-07-10 12:35:36 +02:00
parisc parisc: hppb.c - fix printk format strings 2009-08-02 15:42:39 +02:00
parport parport/serial: add support for NetMos 9901 Multi-IO card 2009-06-30 18:55:59 -07:00
pci PCI: check saved state before restore 2009-08-20 09:08:45 -07:00
pcmcia Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
platform toshiba_acpi: return on a fail path 2009-08-28 15:17:07 -04:00
pnp Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
power Merge git://git.infradead.org/users/cbou/battery-2.6.31 2009-07-30 16:45:53 -07:00
pps pps: fix incorrect verdict check 2009-08-26 20:06:52 -07:00
ps3
rapidio
regulator
rtc rtc: mark if rtc-cmos drivers were successfully registered 2009-07-29 19:10:35 -07:00
s390 [S390] drivers/s390: put NULL test before dereference 2009-08-23 18:10:00 +02:00
sbus sparc: Fix cleanup crash in bbc_envctrl_cleanup() 2009-07-17 10:28:19 -07:00
scsi [SCSI] mpt2sas: fix config request and diag reset deadlock 2009-08-14 09:16:05 -05:00
serial ARM: S3C64XX: serial: Fix a typo in Kconfig 2009-08-14 00:43:46 +01:00
sh
sn
spi spi_s3c24xx: fix transfer setup code 2009-08-18 16:31:13 -07:00
ssb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-07-09 20:33:18 -07:00
staging Staging: rspiusb: Fix buffer overflow 2009-08-07 16:12:03 -07:00
tc
telephony headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
thermal thermal_sys: check get_temp return value 2009-08-26 20:06:52 -07:00
uio
usb USB: fix oops on disconnect in cdc-acm 2009-08-07 16:05:14 -07:00
uwb
video xenfb: connect to backend before registering fb 2009-08-27 12:31:18 -07:00
virtio virtio: refactor find_vqs 2009-07-30 16:03:45 +09:30
vlynq vlynq: fix typo in Kconfig to enable debugging 2009-07-06 13:57:03 -07:00
w1 drivers/w1/masters/omap_hdq.c: fix missing mutex unlock 2009-08-07 10:39:55 -07:00
watchdog [WATCHDOG] ar7_wdt: fix path to ar7-specific headers 2009-08-15 13:05:01 +00:00
xen xen: Use kcalloc() in xen_init_IRQ() 2009-07-01 11:19:47 +02:00
zorro
Kconfig
Makefile