| Age | Commit message (Collapse) | Author |
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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exceptions"
Partially revert e69edc7, which introduced automatic zreladdr
support. The change in the way the manual definition is defined
seems to be error and conflict prone. Go back to the original way
we were handling this for the time being, while keeping the automatic
zreladdr facility.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Dave Hylands reports:
| We've observed a problem with dma_alloc_writecombine when the system
| is under heavy load (heavy bus traffic). We've managed to reduce the
| problem to the following snippet, which is run from a kthread in a
| continuous loop:
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| void *virtAddr;
| dma_addr_t physAddr;
| unsigned int numBytes = 256;
|
| for (;;) {
| virtAddr = dma_alloc_writecombine(NULL,
| numBytes, &physAddr, GFP_KERNEL);
| if (virtAddr == NULL) {
| printk(KERN_ERR "Running out of memory\n");
| break;
| }
|
| /* access DMA memory allocated */
| tmp = virtAddr;
| *tmp = 0x77;
|
| /* free DMA memory */
| dma_free_writecombine(NULL,
| numBytes, virtAddr, physAddr);
|
| ...sleep here...
| }
|
| By itself, the code will run forever with no issues. However, as we
| increase our bus traffic (typically using DMA) then the *tmp = 0x77
| line will eventually cause a page fault. If we add a small delay (a
| few microseconds) before the *tmp = 0x77, then we don't see a page
| fault, even under heavy load.
A dsb() is required after modifying the PTE entries to ensure that they
will always be visible. Add this dsb().
Reported-by: Dave Hylands <dhylands@gmail.com>
Tested-by: Dave Hylands <dhylands@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Commit 7cfe24947 ("ARM: AMBA: Add pclk support to AMBA bus
infrastructure") changed AMBA bus to handle the PCLK automatically.
However, in EP93xx clock initialization is arch_initcall which is done
later than AMBA device identification. This causes
amba_get_enable_pclk() to fail resulting device where UARTs are not
functional.
So change ep93xx_clock_init() to be postcore_initcall.
Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This reverts commit 4fa5518, which causes a compilation regression for
IXP4xx platforms.
Reported-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: bus speed strings should be const
PCI hotplug: Fix build with CONFIG_ACPI unset
PCI: PCIe: Remove the port driver module exit routine
PCI: PCIe: Move PCIe PME code to the pcie directory
PCI: PCIe: Disable PCIe port services during port initialization
PCI: PCIe: Ask BIOS for control of all native services at once
ACPI/PCI: Negotiate _OSC control bits before requesting them
ACPI/PCI: Do not preserve _OSC control bits returned by a query
ACPI/PCI: Make acpi_pci_query_osc() return control bits
ACPI/PCI: Reorder checks in acpi_pci_osc_control_set()
PCI: PCIe: Introduce commad line switch for disabling port services
PCI: PCIe AER: Introduce pci_aer_available()
x86/PCI: only define pci_domain_nr if PCI and PCI_DOMAINS are set
PCI: provide stub pci_domain_nr function for !CONFIG_PCI configs
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* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: Make fiemap work with sparse files
xfs: prevent 32bit overflow in space reservation
xfs: Disallow 32bit project quota id
xfs: improve buffer cache hash scalability
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* 'for-linus' of git://android.kernel.org/kernel/tegra:
[ARM] tegra: Add ZRELADDR default for ARCH_TEGRA
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
alpha: Fix printk format errors
alpha: convert perf_event to use local_t
Fix call to replaced SuperIO functions
alpha: remove homegrown L1_CACHE_ALIGN macro
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: potential ERR_PTR() dereference
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* 'for-linus' of git://neil.brown.name/md:
md: resolve confusion of MD_CHANGE_CLEAN
md: don't clear MD_CHANGE_CLEAN in md_update_sb() for external arrays
Move .gitignore from drivers/md to lib/raid6
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* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
Revert "hwrng: n2-drv - remove casts from void*"
crypto: testmgr - Default to no tests
crypto: testmgr - Fix test disabling option
crypto: hash - Fix handling of small unaligned buffers
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc/pseries: Correct rtas_data_buf locking in dlpar code
powerpc/85xx: Add P1021 PCI IDs and quirks
arch/powerpc/sysdev/qe_lib/qe.c: Add of_node_put to avoid memory leak
arch/powerpc/platforms/83xx/mpc837x_mds.c: Add missing iounmap
fsl_rio: fix compile errors
powerpc/85xx: Fix compile issue with p1022_ds due to lmb rename to memblock
powerpc/85xx: Fix compilation of mpc85xx_mds.c
powerpc: Don't use kernel stack with translation off
powerpc/perf_event: Reduce latency of calling perf_event_do_pending
powerpc/kexec: Adds correct calling convention for kexec purgatory
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: fix a mismatch between code and comment
percpu: fix a memory leak in pcpu_extend_area_map()
percpu: add __percpu notations to UP allocator
percpu: handle __percpu notations in UP accessors
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: use zalloc_cpumask_var() for gcwq->mayday_mask
workqueue: fix GCWQ_DISASSOCIATED initialization
workqueue: Add a workqueue chapter to the tracepoint docbook
workqueue: fix cwq->nr_active underflow
workqueue: improve destroy_workqueue() debuggability
workqueue: mark lock acquisition on worker_maybe_bind_and_lock()
workqueue: annotate lock context change
workqueue: free rescuer on destroy_workqueue
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
pkt_sched: Fix lockdep warning on est_tree_lock in gen_estimator
ipvs: avoid oops for passive FTP
Revert "sky2: don't do GRO on second port"
gro: fix different skb headrooms
bridge: Clear INET control block of SKBs passed into ip_fragment().
3c59x: Remove incorrect locking; correct documented lock hierarchy
sky2: don't do GRO on second port
ipv4: minor fix about RPF in help of Kconfig
xfrm_user: avoid a warning with some compiler
net/sched/sch_hfsc.c: initialize parent's cl_cfmin properly in init_vf()
pxa168_eth: fix a mdiobus leak
net sched: fix kernel leak in act_police
vhost: stop worker only if created
MAINTAINERS: Add ehea driver as Supported
ath9k_hw: fix parsing of HT40 5 GHz CTLs
ath9k_hw: Fix EEPROM uncompress block reading on AR9003
wireless: register wiphy rfkill w/o holding cfg80211_mutex
netlink: Make NETLINK_USERSOCK work again.
irda: Correctly clean up self->ias_obj on irda_bind() failure.
wireless extensions: fix kernel heap content leak
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: wlan-ng: Explicitly set some fields in cfg80211 interface
Staging: octeon: depends on NETDEVICES
Staging: spectra: depend on X86_MRST
Staging: zram: free device memory when init fails
Staging: rt2870sta: Add more device IDs from vendor drivers
staging: comedi das08_cs.c: Fix io_req_t conversion
staging: spectra needs <linux/slab.h>
staging: hv: Fixed lockup problem with bounce_buffer scatter list
staging: hv: Increased storvsc ringbuffer and max_io_requests
staging: hv: Fixed the value of the 64bit-hole inside ring buffer
staging: hv: Fixed bounce kmap problem by using correct index
staging: hv: Fix missing functions for net_device_ops
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
sysfs: checking for NULL instead of ERR_PTR
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: ftdi_sio: Added custom PIDs for ChamSys products
USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint descriptors.
USB: cdc-acm: Add pseudo modem without AT command capabilities
USB: cxacru: Use a bulk/int URB to access the command endpoint
usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters.
USB: cdc-acm: Adding second ACM channel support for various Nokia and one Samsung phones
usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P.
USB: ssu100: turn off debug flag
usb: allow drivers to use allocated bandwidth until unbound
USB: cp210x usb driver: add USB_DEVICE for Pirelli DP-L10 mobile.
USB: cp210x: Add B&G H3000 link cable ID
USB: CP210x Add new device ID
USB: option: fix incorrect novatel entries
USB: Fix kernel oops with g_ether and Windows
USB: rndis: section mismatch fix
USB: ehci-ppc-of: problems in unwind
USB: s3c-hsotg: Remove DEBUG define
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty: fix tty_line must not be equal to number of allocated tty pointers in tty driver
serial: bfin_sport_uart: restore transmit frame sync fix
serial: fix port type conflict between NS16550A & U6_16550A
MAINTAINERS: orphan isicom
vt: Fix console corruption on driver hand-over.
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* 'linux-next' of git://git.infradead.org/ubi-2.6:
UBI: do not oops when erroneous PEB is scheduled for scrubbing
UBI: fix kconfig unmet dependency
UBI: fix forward compatibility
UBI: eliminate update of list_for_each_entry loop cursor
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git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
nilfs2: fix leak of shadow dat inode in error path of load_nilfs
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* 'drm-intel-fixes' of git://anongit.freedesktop.org/~ickle/drm-intel: (25 commits)
intel_agp,i915: Add more sandybridge graphics device ids
drm/i915: Enable MI_FLUSH on Sandybridge
agp/intel: Fix cache control for Sandybridge
agp/intel: use #ifdef idiom for intel-agp.h
agp/intel: fix physical address mask bits for sandybridge
drm/i915: Prevent double dpms on
drm/i915: Avoid use of uninitialised values when disabling panel-fitter
drm/i915: Avoid pageflipping freeze when we miss the flip prepare interrupt
drm/i915: Tightly scope intel_encoder to prevent invalid use
drm/i915: Allocate the PCI resource for the MCHBAR
drm/i915/dp: Really try 5 times before giving up.
drm/i915/sdvo: Restore guess of the DDC bus in absence of VBIOS
drm/i915/dp: Boost timeout for enabling transcoder to 100ms
drm/i915: Re-use set_base_atomic to share setting of the display registers
drm/i915: Fix offset page-flips on i965+
drm/i915: Include a generation number in the device info
i915: return -EFAULT if copy_to_user fails
i915: return -EFAULT if copy_to_user fails
agp/intel: Promote warning about failure to setup flush to error.
drm/i915: overlay on gen2 can't address above 1G
...
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: Do not force 1024x768 modes on unknown connectors
drm/kms: Add a module parameter to disable polling
drm/radeon/kms: fix tv-out on avivo asics
drm/radeon/kms/evergreen: fix gpu hangs in userspace accel code
drm/nv50: initialize ramht_refs list for faked 0 channel
drm/nouveau: Don't take struct_mutex around the pushbuf IOCTL.
drm/nouveau: Take fence spinlock before reading the last sequence.
drm/radeon/kms/evergreen: work around bad data in some i2c tables
drm/radeon/kms: properly set crtc high base on r7xx
drm/radeon/kms: fix tv module parameter
drm/radeon/kms: force legacy pll algo for RV515 LVDS
drm/radeon/kms: remove useless clock code
drm/radeon/kms: fix a regression on r7xx AGP due to the HDP flush fix
drm/radeon/kms: use tracked values for sclk and mclk
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Recent changes to linker segments that hold per-cpu data broke linking
for m68knommu targets:
LD vmlinux
/usr/local/bin/m68k-uclinux-ld.real: error: no memory region specified for loadable section `.data..shared_aligned'
Add missing segments into the m68knommu linker script.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix missing consts in h8300's kernel_execve():
arch/h8300/kernel/sys_h8300.c: In function 'kernel_execve':
arch/h8300/kernel/sys_h8300.c:59: warning: initialization from incompatible pointer type
arch/h8300/kernel/sys_h8300.c:60: warning: initialization from incompatible pointer type
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix h8300's die() to take care of a number of problems:
CC arch/h8300/kernel/traps.o
In file included from arch/h8300/include/asm/bitops.h:10,
from include/linux/bitops.h:22,
from include/linux/kernel.h:17,
from include/linux/sched.h:54,
from arch/h8300/kernel/traps.c:18:
arch/h8300/include/asm/system.h:136: warning: 'struct pt_regs' declared inside parameter list
arch/h8300/include/asm/system.h:136: warning: its scope is only this definition or declaration, which is probably not what you want
arch/h8300/kernel/traps.c:100: error: conflicting types for 'die'
arch/h8300/include/asm/system.h:136: error: previous declaration of 'die' was here
make[2]: *** [arch/h8300/kernel/traps.o] Error 1
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix h8300's asm/atomic.h to store the IRQ flags in an unsigned long to deal
with warnings of the following type:
arch/h8300/include/asm/atomic.h: In function 'atomic_add_return':
arch/h8300/include/asm/atomic.h:22: warning: comparison of distinct pointer types lacks a cast
arch/h8300/include/asm/atomic.h:24: warning: comparison of distinct pointer types lacks a cast
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sanity check the flags passed to change_mnt_propagation(). Exactly
one flag should be set. Return EINVAL otherwise.
Userspace can pass in arbitrary combinations of MS_* flags to mount().
do_change_type() is called if any of MS_SHARED, MS_PRIVATE, MS_SLAVE,
or MS_UNBINDABLE is set. do_change_type() clears MS_REC and then
calls change_mnt_propagation() with the rest of the user-supplied
flags. change_mnt_propagation() clearly assumes only one flag is set
but do_change_type() does not check that this is true. For example,
mount() with flags MS_SHARED | MS_RDONLY does not actually make the
mount shared or read-only but does clear MNT_UNBINDABLE.
Signed-off-by: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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New pci ids for GT2 and GT2+ on desktop and mobile sandybridge,
and graphics device ids for server sandybridge. Also rename original
ids string to reflect GT1 version.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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MI_FLUSH is being deprecated, but still available on Sandybridge.
Make sure it's enabled as userspace still uses MI_FLUSH.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Sandybridge GTT has new cache control bits in PTE, which controls
graphics page cache in LLC or LLC/MLC, so we need to extend the mask
function to respect the new bits.
And set cache control to always LLC only by default on Gen6.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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It should shift bit 39-32 into pte's bit 11-4.
Reported-by:Takashi Iwai <tiwai@suse.de>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Arguably this is a bug in drm-core in that we should not be called twice
in succession with DPMS_ON, however this is still occuring and we see
FDI link training failures on the second call leading to the occassional
blank display. For the time being ignore the repeated call.
Original patch by Dave Airlie <airlied@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
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We were passing garbage values into the panel-fitter control register
when disabling it on Ironlake - those values (filter modes and reserved
MBZ bits) would have then be re-used the next time panel-fitting was
enabled.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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When we miss the flip prepare interrupt, we never get into the
software state needed to restart userspace, resulting in a freeze of a
full-screen OpenGL application (such as a compositor).
Work around this by checking DSPxSURF/DSPxBASE to see if the page flip
has actually happened. If it has, do the work we would have done when
the flip prepare interrupt comes in.
Also, add debugfs information to tell us what's going on (based on the
patch from Chris Wilson attached to bugs.fdo bug #29798).
Signed-off-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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We reset intel_encoder for every matching encoder whilst iterating over
the encoders attached to this crtc when changing mode. As such in a
cloned configuration intel_encoder may not correspond to the correct
is_edp encoder.
By scoping intel_encoder to the loop, not only is the compiler able to
spot this mistake, we also improve readiability for ourselves.
[It might not be a mistake, within this function it is unclear as to
whether it is permissable for eDP to be cloned...]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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We were failing when trying to allocate the resource for MMIO of the
MCHBAR because we forgot to specify what type of resource we wanted.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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Only stop trying if the aux channel sucessfully reports that the
transmission was completed, otherwise try again. On the 5th failure,
bail and report that something is amiss.
This fixes a sporadic failure in reading the EDID for my external panel
over DP.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
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If the VBIOS tells us the mapping of the SDVO device onto the DDC bus,
use it. However, if there is no VBIOS available that mapping is
uninitialised and we should fallback to our earlier guess.
Fix regression introduced in b1083333 (which in turn is a fix for the
regression caused by the introduction of this guess, 14571b4).
References:
Bug 29499 - [945GM] Screen disconnected because of missing VBIOS
https://bugs.freedesktop.org/show_bug.cgi?id=29499
Bug 15109 - i945GM fails to detect EDID on DVI port
https://bugzilla.kernel.org/show_bug.cgi?id=15109
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Paul Neumann <paul104x@yahoo.de>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: stable@kernel.org
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Adam Hill reported that his Arrandale system required a much longer, up
to 200x500us, wait for the panel to initialise or else modesetting would
fail.
References:
https://bugs.freedesktop.org/show_bug.cgi?id=29141
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-and-tested-by: Adam Hill <sidepipeuk@yahoo.co.uk>
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Lets try to avoid repeating old bugs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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i965 uses the Display Registers to compute the offset from the display
base so the new base does not need adjusting when flipping. The older
chipsets use a fence to access the display and so do perceive the
surface as linear and have a single base register which is reprogrammed
using the flip.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: Marty Jack <martyj19@comcast.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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To simplify the IS_GEN[234] macros and to enable switching.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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copy_to_user() returns the number of bytes remaining to be copied and
I'm pretty sure we want to return a negative error code here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
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copy_to_user returns the number of bytes remaining to be copied, but we
want to return a negative error code here. These are returned to
userspace.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
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Make sure we always detect when we fail to correctly allocate the Isoch
Flush Page and print an error to warn the user about the likely memory
corruption that will result in invalid rendering or worse.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
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So set the coherent dma mask accordingly. This dma mask is only used
for physical objects, so it won't really matter allocation-wise.
Now this never really surfaced because sane 32bit kernels only have 1G
of lowmem. But some eager testers (distros?) still carry around the patch
to adjust lowmem via a kconfig option. And the kernel seems to favour
high allocations on boot-up, hence the overlay blowing up reliably.
Because the patch is tiny and nicely shows how broken gen2 is it's imho
worth to merge despite the fact that mucking around with the lowmem/
highmem division is (no longer) supported.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=28318
Cc: stable@kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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