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Fixes tiling swizzling mode failures that manifest in glReadPixels().
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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At leavevt and lastclose time, cancel any pending retire work handler
invocation, and keep the retire work handler from requeuing itself if it is
currently running.
This patch restructures i915_gem_idle to perform all of these tasks instead
of having both leavevt and lastclose call a sequence of functions.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This should improve performance by avoiding uncached reads by the CPU (the
point of having a status page), and may improve stability. This patch only
affects G33, GM45 and G45 chips as those are the only ones using GTT-based
HWS mappings.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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G45 appears quite sensitive to ring initialization register writes,
sometimes leaving the HEAD register with the START register contents. Check
to make sure HEAD is reset correctly when START is written, and fix it up,
screaming loudly.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Dwords 0 through 0x1f are reserved for use by the hardware. Move the GEM
breadcrumb from 0x10 to 0x20 to keep out of this area.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Like the last patch but adds a macro to get at the irq value instead of
dereferencing pdev directly. Should make things easier for the BSD guys and
if we ever support non-PCI devices.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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doing an ipi for the wbinvd case isn't necessary.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Dave Airlie <airlied@redhat.com>
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init/entervt/leavevt should be root-only master ioctls.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fixes failure to map the ringbuffer when PAT tells us we don't get to do
uncached on something that's already mapped WC, or something along those lines.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fixes bad software fallback rendering in Mesa in dual-channel configurations.
d9a2470012588dc5313a5ac8bb2f03575af00e99
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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We fail ioctls that depend on the sarea_priv with EINVAL.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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In the conversion for GEM, we had stopped using the hardware lock to protect
ring usage, since it was all internal to the DRM now. However, some paths
weren't converted to using struct_mutex to prevent multiple threads from
concurrently working on the ring, in particular between the vblank swap handler
and ioctls.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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GEM allows the creation of persistent buffer objects accessible by the
graphics device through new ioctls for managing execution of commands on the
device. The userland API is almost entirely driver-specific to ensure that
any driver building on this model can easily map the interface to individual
driver requirements.
GEM is used by the 2d driver for managing its internal state allocations and
will be used for pixmap storage to reduce memory consumption and enable
zero-copy GLX_EXT_texture_from_pixmap, and in the 3d driver is used to enable
GL_EXT_framebuffer_object and GL_ARB_pixel_buffer_object.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Previously, drivers supporting vblank interrupt waits would run the interrupt
all the time, or all the time that any 3d client was running, preventing the
CPU from sleeping for long when the system was otherwise idle. Now, interrupts
are disabled any time that no client is waiting on a vblank event. The new
method uses vblank counters on the chipsets when the interrupts are turned
off, rather than counting interrupts, so that we can continue to present
accurate vblank numbers.
Co-author: Michel Dänzer <michel@tungstengraphics.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.
Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().
Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: David Airlie <airlied@redhat.com>
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Author: Zhenyu Wang <zhenyu.z.wang@intel.com>
i915: official name for GM45 chipset
Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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[Patch against drm-next. Consider this a trial balloon for our new Linux
development model.]
This is a big chunk of code. Separating it out makes it easier to change
without churn on the main i915_drv.c file (and there will be churn as we
fix bugs and add things like kernel mode setting). Also makes it easier
to share this file with BSD.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Make writeback not get disabled on resume.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Pointed out by Roel Kluin on dri-devel.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This adds the support necessary for allowing ACPI backlight control to
work on some newer Intel-based graphics systems. Tested on Thinkpad T61
and HP 2510p hardware.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Some chips were unstable with repeated setup/teardown of the hardware status
page.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This avoids early termination for long-running commands.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Previous attempts at interrupt mitigation had been foiled by i915_wait_irq's
failure to update the sarea seqno value when the status page indicated that
the seqno had already been passed. MSI support has been seen to cut CPU
costs by up to 40% in some workloads by avoiding other expensive interrupt
handlers for frequent graphics interrupts.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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It is already correctly detected by the kernel for use in suspend/resume.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The driver can know what hardware requires MI_BATCH_BUFFER vs
MI_BATCH_BUFFER_START; there's no reason to let user mode configure this.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fix a pointer cast warning in the SIS DRM code.
This was introduced in patch ce65a44de07f73ceda1749812b75086b7add408d.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fix the SIS DRM memory allocator if the SIS FB built as a module. The SIS DRM
code initialises the mm allocation hooks, but _only_ if the SIS FB is not
built as a module because it depends on CONFIG_FB_SIS, and that's unset if the
SIS FB is not built in. It must check CONFIG_FB_SIS_MODULE as well.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (25 commits)
staging: at76_usb wireless driver
Staging: workaround build system bug
Staging: Lindent sxg.c
Staging: SLICOSS: Call pci_release_regions at driver exit
Staging: SLICOSS: Fix remaining type names
Staging: SLICOSS: Fix warnings due to static usage
Staging: SLICOSS: lots of checkpatch fixes
Staging: go7007 v4l fixes
Staging: Fix gcc warnings in sxg
Staging: add echo cancelation module
Staging: add wlan-ng prism2 usb driver
Staging: add w35und wifi driver
Staging: USB/IP: add host driver
Staging: USB/IP: add client driver
Staging: USB/IP: add common functions needed
Staging: add the go7007 video driver
Staging: add me4000 pci data collection driver
Staging: add me4000 firmware files
Staging: add sxg network driver
Staging: add Alacritech slicoss network driver
...
Fixed up conflicts due to taint flags changes and MAINTAINERS cleanup in
MAINTAINERS, include/linux/kernel.h and kernel/panic.c.
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* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (47 commits)
hwmon: (adm1026) Prevent log spamming
hwmon: (adm1026) Fix debug messages
hwmon: (adm1029) Use mask for fan_div value
hwmon: (adt7470) Add documentation
hwmon: (ibmaem) Automatically load on IBM systems via DMI
hwmon: (ibmpex) Automatically load on IBM systems via DMI
hwmon: (w83781d) Use new style driver binding
hwmon: (w83781d) Stop abusing struct i2c_client for ISA devices
hwmon: (w83781d) Make ISA interface depend on CONFIG_ISA
hwmon: (w83781d) Additional information about AS99127F PWM
hwmon: (w83781d) Detect alias chips
hwmon: (w83781d) Refactor beep enable handling
hwmon: Drop dead links to old National Semiconductor chip datasheets
hwmon: (w83791d) add support for thermal cruise mode
hwmon: (w83791d) add pwm_enable support
hwmon: (w83791d) add manual PWM support
hwmon: (w83791d) fan 4/5 pins can also be used for gpio
hwmon: (max1619) Use inline functions instead of macros
hwmon: (it87) Fix thermal sensor type values
hwmon: (lm78) Convert to a new-style i2c driver
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
block: remove __generic_unplug_device() from exports
block: move q->unplug_work initialization
blktrace: pass zfcp driver data
blktrace: add support for driver data
block: fix current kernel-doc warnings
block: only call ->request_fn when the queue is not stopped
block: simplify string handling in elv_iosched_store()
block: fix kernel-doc for blk_alloc_devt()
block: fix nr_phys_segments miscalculation bug
block: add partition attribute for partition number
block: add BIG FAT WARNING to CONFIG_DEBUG_BLOCK_EXT_DEVT
softirq: Add support for triggering softirq work on softirqs.
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits)
[SCSI] sd: fix compile failure with CONFIG_BLK_DEV_INTEGRITY=n
libiscsi: fix locking in iscsi_eh_device_reset
libiscsi: check reason why we are stopping iscsi session to determine error value
[SCSI] iscsi_tcp: return a descriptive error value during connection errors
[SCSI] libiscsi: rename host reset to target reset
[SCSI] iscsi class: fix endpoint id handling
[SCSI] libiscsi: Support drivers initiating session removal
[SCSI] libiscsi: fix data corruption when target has to resend data-in packets
[SCSI] sd: Switch kernel printing level for DIF messages
[SCSI] sd: Correctly handle all combinations of DIF and DIX
[SCSI] sd: Always print actual protection_type
[SCSI] sd: Issue correct protection operation
[SCSI] scsi_error: fix target reset handling
[SCSI] lpfc 8.2.8 v2 : Add statistical reporting control and additional fc vendor events
[SCSI] lpfc 8.2.8 v2 : Add sysfs control of target queue depth handling
[SCSI] lpfc 8.2.8 v2 : Revert target busy in favor of transport disrupted
[SCSI] scsi_dh_alua: remove REQ_NOMERGE
[SCSI] lpfc 8.2.8 : update driver version to 8.2.8
[SCSI] lpfc 8.2.8 : Add MSI-X support
[SCSI] lpfc 8.2.8 : Update driver to use new Host byte error code DID_TRANSPORT_DISRUPTED
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
net: Remove CONFIG_KMOD from net/ (towards removing CONFIG_KMOD entirely)
ipv4: Add a missing rcu_assign_pointer() in routing cache.
[netdrvr] ibmtr: PCMCIA IBMTR is ok on 64bit
xen-netfront: Avoid unaligned accesses to IP header
lmc: copy_*_user under spinlock
[netdrvr] myri10ge, ixgbe: remove broken select INTEL_IOATDMA
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When debugging is enabled, the adm1026 driver currently logs the
message "Setting VID from GPIO11-15" 108 times each time you run
"sensors". Once should be enough.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Philip Pokorny <ppokorny@penguincomputing.com>
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* Add missing new-line to one debug message.
* Remove leading colon from 3 debug messages.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Philip Pokorny <ppokorny@penguincomputing.com>
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This is my patch for testing correct values of fan div in adm1029 and
prevent a division by 0 for some (unlikely) register values.
Signed-off-by: Corentin Labbe <corentin.labbe@geomatys.fr>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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This patch modifies the w83781d driver to use new style driver binding.
Substantial code modifications are required to deal with the new
interface, especially legacy device detection.
[JD: largely edited to make the patch smaller and to get the driver
to work again on ISA devices.]
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Upcoming changes to the I2C part of the w83781d driver will cause ISA
devices to no longer have a struct i2c_client at hand. So, we must
stop (ab)using it now.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
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Probing the ISA bus on systems without ISA bus may hang the system.
This patch makes the ISA bus related code depend on the kernel
configuration parameter CONFIG_ISA. It moves ISA bus related code
into one #ifdef CONFIG_ISA ... #endif block and adds some helper
function.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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The W83781D and W83782D can be accessed either on the I2C bus or the
ISA bus. We must not access the same chip through both interfaces. So
far we were relying on the user passing the correct ignore parameter
to skip the registration of the I2C interface as suggested by
sensors-detect, but this is fragile: the user may load the w83781d
driver without running sensors-detect, and the i2c bus numbers are
not stable across reboots and hardware changes.
So, better detect alias chips in the driver directly, and skip any
I2C chip which is obviously an alias of the ISA chip. This is done
by comparing the value of 26 selected registers.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
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