Dave Gordon
ebd0fd4bef
drm/i915: Consolidate ring freespace calculations ...
There are numerous places in the code where the driver's idea of
how much space is left in a ring is updated using the driver's
latest notions of the positions of 'head' and 'tail' for the ring.
Among them are some that update one or both of these values before
(re)doing the calculation. In particular, there are four different
places in the code where 'last_retired_head' is copied to 'head'
and then set to -1; and two of these do not have a guard to check
that it has actually been updated since last time it was consumed,
leaving the possibility that the dummy -1 can be transferred from
'last_retired_head' to 'head', causing the space calculation to
produce 'impossible' results (previously seen on Android/VLV).
This code therefore consolidates all the calculation and updating of
these values, such that there is only one place where the ring space
is updated, and it ALWAYS uses (and consumes) 'last_retired_head' if
(and ONLY if) it has been updated since the last call.
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-12-03 09:35:26 +01:00
ACPI / PM: Ignore wakeup setting if the ACPI companion can't wake up
2014-11-20 01:24:16 +01:00
ahci: fix AHCI parameters not taken into account
2014-11-04 12:56:25 -05:00
solos-pci: fix error return code
2014-11-23 14:29:44 -05:00
Merge branches 'pm-domains', 'pm-sleep' and 'pm-cpufreq'
2014-11-14 15:17:32 +01:00
bcma: add another PCI ID of device with BCM43228
2014-10-23 14:02:06 -04:00
zram: avoid kunmap_atomic() of a NULL pointer
2014-11-13 16:17:05 -08:00
Linux 3.18-rc7
2014-12-02 10:58:33 +10:00
clk: pxa: fix pxa27x CCCR bit usage
2014-11-17 11:25:29 -08:00
clockevent: sun4i: Fix race condition in the probe code
2014-11-19 10:43:51 +01:00
cpufreq: Avoid crash in resume on SMP without OPP
2014-11-08 02:10:04 +01:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-10-24 12:48:47 -07:00
crypto: caam - fix missing dma unmap on error path
2014-11-06 23:10:20 +08:00
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
2014-11-21 16:24:27 -08:00
e7xxx_edac: Report CE events properly
2014-10-22 22:59:00 +02:00
firewire: cdev: prevent kernel stack leaking into ioctl arguments
2014-11-14 12:10:13 +01:00
Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-23 14:45:09 -07:00
drm/i915: Consolidate ring freespace calculations
2014-12-03 09:35:26 +01:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2014-11-13 16:19:14 -08:00
hwmon: (g762) fix call to devm_hwmon_device_register_with_groups()
2014-11-19 14:06:47 -08:00
i2c: core: Dispose OF IRQ mapping at client removal time
2014-11-07 19:03:18 +01:00
Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block
2014-10-18 12:12:45 -07:00
iio: accel: bmc150: set low default thresholds
2014-11-16 20:25:00 +00:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2014-11-21 16:28:45 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2014-11-27 17:51:50 -08:00
irqchip: brcmstb-l2: Fix error handling of irq_of_parse_and_map
2014-11-26 06:28:42 +00:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2014-10-21 08:18:38 -07:00
Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2014-10-21 11:21:19 -07:00
One fix for md for 3.18.
2014-11-16 15:34:31 -08:00
[media] sp2: sp2_init() can be static
2014-11-03 19:08:06 -02:00
mfd: twl4030-power: Fix poweroff with PM configuration enabled
2014-11-10 15:22:04 +00:00
cxl: Fix PSL error due to duplicate segment table entries
2014-10-28 19:52:52 +11:00
mmc: core: fix card detection regression
2014-11-05 09:28:48 +01:00
Three main MTD fixes for 3.18:
2014-11-02 14:45:52 -08:00
Merge tag 'master-2014-11-25' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-11-26 16:38:35 -05:00
ntb: Adding split BAR support for Haswell platforms
2014-10-17 07:08:51 -04:00
of/selftest: Fix testing when /aliases is missing
2014-11-20 15:32:49 +00:00
PCI/MSI: Add device flag indicating that 64-bit MSIs don't work
2014-11-24 14:11:34 +11:00
phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
2014-11-05 14:34:06 -08:00
pinctrl: baytrail: show output gpio state correctly on Intel Baytrail
2014-10-28 11:16:26 +01:00
platform: hp_accel: Add SERIO_I8042 as a dependency since it now includes i8042.h/serio.h
2014-11-10 21:16:15 -08:00
power supply and reset changes for the v3.18-rc
2014-11-15 15:22:51 -08:00
pwm: Changes for v3.18-rc1
2014-10-21 08:17:43 -07:00
Merge remote-tracking branches 'regulator/fix/max1586', 'regulator/fix/max77686', 'regulator/fix/max77693', 'regulator/fix/max77802', 'regulator/fix/max8860' and 'regulator/fix/s2mpa01' into regulator-linus
2014-11-05 14:59:25 +00:00
drivers/rtc/rtc-bq32k.c: fix register value
2014-10-29 16:33:14 -07:00
KVM: s390: virtio_ccw: remove unused variable
2014-11-03 10:43:00 +01:00
SCSI fixes on 20141128
2014-11-29 10:15:31 -08:00
soc/tegra: fuse: export tegra_sku_info
2014-12-02 15:43:37 +10:00
Merge remote-tracking branches 'spi/fix/dw' and 'spi/fix/sirf' into spi-linus
2014-11-26 19:05:25 +00:00
Linux 3.18-rc7
2014-12-02 10:58:33 +10:00
target: return CONFLICT only when SA key unmatched
2014-11-02 22:04:57 -08:00
thermal: Exynos: Deletion of unnecessary checks before two function calls
2014-11-21 15:20:17 -04:00
Revert "serial: of-serial: add PM suspend/resume support"
2014-11-25 12:46:39 -08:00
usb-quirks: Add reset-resume quirk for MS Wireless Laser Mouse 6000
2014-11-24 17:01:55 -08:00
vhost-scsi: Take configfs group dependency during VHOST_SCSI_SET_ENDPOINT
2014-10-28 13:54:16 -07:00
Merge branch '3.18/omapdss-fixes' into 3.18/fbdev-fixes
2014-10-30 14:53:49 +02:00
One cc: stable commit, the rest are a series of minor cleanups which have
2014-10-18 10:25:09 -07:00
watchdog: meson: remove magic value for reboot
2014-10-20 21:09:17 +02:00
xen/pci: Allocate memory for physdev_pci_device_add's optarr
2014-10-23 16:24:02 +01:00
ebd0fd4bef