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2010-11-19drm/i915: Take advantage of auto-polling CRT hotplug detection on PCH hardwareKeith Packard
Both IBX and CPT have an automatic hotplug detection mode which appears to work reliably enough that we can dispense with the manual force hotplug trigger stuff. This means that hotplug detection is as simple as reading the current hotplug register values. The first time the hotplug detection is activated, the code synchronously waits for a hotplug sequence in case the hardware hasn't bothered to do a detection cycle since being initialized. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/i915/crt: Introduce struct intel_crtChris Wilson
We will use this structure in future patches to store CRT specific information on the encoder. Split out and tweaked from a patch by Keith Packard. Signed-off-by: Keith Packard <keithp@kithp.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/i915: Do not hold mutex when faulting in user addressesChris Wilson
Linus Torvalds found that it was rather trivial to trigger a system freeze: In fact, with lockdep, I don't even need to do the sysrq-d thing: it shows the bug as it happens. It's the X server taking the same lock recursively. Here's the problem: ============================================= [ INFO: possible recursive locking detected ] 2.6.37-rc2-00012-gbdbd01a #7 --------------------------------------------- Xorg/2816 is trying to acquire lock: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c626c>] i915_gem_fault+0x50/0x17e but task is already holding lock: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c403b>] i915_mutex_lock_interruptible+0x28/0x4a other info that might help us debug this: 2 locks held by Xorg/2816: #0: (&dev->struct_mutex){+.+.+.}, at: [<ffffffff812c403b>] i915_mutex_lock_interruptible+0x28/0x4a #1: (&mm->mmap_sem){++++++}, at: [<ffffffff81022d4f>] page_fault+0x156/0x37b This recursion was introduced by rearranging the locking to avoid the double locking on the fast path (4f27b5d and fbd5a26d) and the introduction of the prefault to encourage the fast paths (b5e4f2b). In order to undo the problem, we rearrange the code to perform the access validation upfront, attempt to prefault and then fight for control of the mutex. the best case scenario where the mutex is uncontended the prefaulting is not wasted. Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-19drm/radeon/kms: i2c s/sprintf/snprintf/g for safetyAlex Deucher
As per advice from Jean Delvare. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-19drm/radeon/kms: fix i2c pad masks on rs4xxAlex Deucher
These got lost in the last i2c cleanup. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=23222 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] remove SCSI host lock and serial number usage from ata_scsi_queuecmd
2010-11-18Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-11-18Fix build failure at cx25821-video driverYouquan Song
Kernel build fail for cx25821-video has depends on smp_lock.h header file, but the dependency is removed in recent commit 451a3c24b013. Signed-off-by: Youquan Song <youquan.song@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-183c59x: fix build failure on !CONFIG_PCINamhyung Kim
VORTEX_PCI() could return NULL so it needs to be casted before accessing any member of struct pci_dev. This fixes following build failure. Likewise VORTEX_EISA() was changed also. CC [M] drivers/net/3c59x.o drivers/net/3c59x.c: In function 'acpi_set_WOL': drivers/net/3c59x.c:3211:39: warning: dereferencing 'void *' pointer drivers/net/3c59x.c:3211:39: error: request for member 'current_state' in something not a structure or union make[3]: *** [drivers/net/3c59x.o] Error 1 make[2]: *** [drivers/net/3c59x.o] Error 2 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18ipg.c: remove id [SUNDANCE, 0x1021]Ken Kawasaki
ipg.c: The id [SUNDANCE, 0x1021] (=[0x13f0, 0x1021]) is defined at dl2k.h and ipg.c. But this device works better with dl2k driver. This problem is similar with the commit [25cca5352712561fba97bd37c495593d641c1d39 ipg: Remove device claimed by dl2k from pci id table] at 11 Feb 2010. Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18net: caif: spi: fix potential NULL dereferenceVasiliy Kulikov
alloc_netdev() is not checked here for NULL return value. dev is check instead. It might lead to NULL dereference of ndev. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18ath9k_htc: Avoid setting QoS control for non-QoS framesRajkumar Manoharan
Setting tid information in the TX header is required only for QoS frames. Not handling this case causes severe data loss with some APs. Cc: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-11-18bonding: fix a race in IGMP handlingEric Dumazet
RCU conversion in IGMP code done in net-next-2.6 raised a race in __bond_resend_igmp_join_requests(). It iterates in_dev->mc_list without appropriate protection (RTNL, or read_lock on in_dev->mc_list_lock). Another cpu might delete an entry while we use it and trigger a fault. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-18Input: fix typo in keycode validation supporting large scancodesMattia Dongili
Check the input_keymap_entry keycode size (u32) instead of the device's (void*) when validating that keycode value can be stored in the keymap. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=22722 Signed-off-by: Mattia Dongili <malattia@linux.it> Tested-by: Norbert Preining <preining@logic.at> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-11-18drm/ttm: Fix up a theoretical deadlockThomas Hellstrom
A process suspended waiting for a higher sequence or no sequence to unreserve, a bo may be beaten to the reservation by a process with a lower sequence. In that case the first process should give up trying to reserve and return -EAGAIN. In order for that to happen, we must wake waiting processes when we change sequence, so that they have a chance to detect the new sequence. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into ↵Dave Airlie
drm-fixes * 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next: (25 commits) nouveau: Acknowledge HPD irq in handler, not bottom half drm/nouveau: Fix a few confusions between "chipset" and "card_type". drm/nouveau: don't expose backlight control when available through ACPI drm/nouveau/pm: improve memtiming mappings drm/nouveau: Make PCIE GART size depend on the available RAMIN space. drm/nouveau: Return error from nouveau_gpuobj_new if we're out of RAMIN. drm/nouveau: Fix compilation issues in nouveau_pm when CONFIG_HWMON is not set drm/nouveau: Don't use load detection for connector polling. drm/nv10-nv20: Fix instability after MPLL changes. drm/nv50: implement possible workaround for NV86 PGRAPH TLB flush hang drm/nouveau: Don't poll LVDS outputs. drm/nouveau: Use "force" to decide if analog load detection is ok or not. drm/nv04: Fix scanout over the 16MB mark. drm/nouveau: fix nv40 pcie gart size drm/nva3: fix overflow in fixed point math used for pll calculation drm/nv10: Balance RTs expected to be accessed simultaneously by the 3d engine. drm/nouveau: Expose some BO usage flags to userspace. drm/nouveau: Reduce severity of the unknown getparam error. drm/nouveau: Avoid lock dependency between ramht and ramin spinlocks. drm/nouveau: Some random cleanups. ...
2010-11-18drm/radeon/kms: fix tiling info on evergreenAlex Deucher
We aren't currently using tiling in userspace on evergreen, but the info we currently return for the tiling info query (gb_addr_config) is no adequate for userspace tiling alignment calculations. It does not contain the bank info. Create a custom tiling info dword with all the necessary info (num channels, num banks, group size, row size). Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: fix alignment when allocating buffersAlex Deucher
We were previously dropping alignment requests on the floor when allocating buffers so we always ended up page aligned. Certain tiling modes on 6xx+ require larger alignment which wasn't happening before. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: Jerome Glisse <j.glisse@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/vmwgfx: Fix up an error path during bo creationThomas Hellstrom
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: register an i2c adapter name for the dp aux busAlex Deucher
This causes the connector to not be added since i2c init fails for the adapter. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=31688 Noticed by Ari Savolainen. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: Ari Savolainen <ari.m.savolainen@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms/atom: add proper external encoders supportAlex Deucher
These are external encoder chips connected via DVO or DP. The actual external encoder programming is handled by the kms encoder functions for primary encoder. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms/atom: cleanup and unify DVO handlingAlex Deucher
Handle all the various asic family specific things for DVO. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: properly power up/down the eDP panel as needed (v4)Alex Deucher
The eDP panel must be powered up for aux transactions, so power it up for detect and mode probe functions, otherwise power it up or down based on dpms. v2: - only mess with eDP panel on DCE4+ - only mess with eDP panel on eDP connectors, not all DP connectors v3: - be extra careful to only mess with eDP panels on eDP connectors v4: - avoid possible null derefernce if a connector has not been assigned to the encoder Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms/atom: set sane defaults in atombios_get_encoder_mode()Alex Deucher
If there was no connector mapped to the encoder, atombios_get_encoder_mode() returned 0 which is the id for DP. Return something sane instead based on the encoder id. This avoids hitting the DP paths on non-DP encoders. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: turn the backlight off explicitly for dpmsAlex Deucher
Seems some newer systems require this explicitly. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: fix typo in r600 cs checkerAlex Deucher
Looks like a typo in: drm/radeon/r600: fix tiling issues in CS checker. (f30df2fad0c901e74ac9a52a488a54c69a373a41) Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm: radeon: fix error value signVasiliy Kulikov
enable_vblank implementations should use negative result to indicate error. radeon_enable_vblank() returns EINVAL in this case. Change this to -EINVAL. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18drm/radeon/kms: fix and unify tiled buffer alignment checking for r6xx/7xxAlex Deucher
Tiled buffers have the same alignment requirements regardless of whether the surface is for db, cb, or textures. Previously, the calculations where inconsistent for each buffer type. - Unify the alignment calculations in a common function - Standardize the alignment units (pixels for pitch/height/depth, bytes for base) - properly check the buffer base alignments Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-11-18nouveau: Acknowledge HPD irq in handler, not bottom halfAndy Lutomirski
The old code generated an interrupt storm bad enough to completely take down my system. Signed-off-by: Andy Lutomirski <luto@mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Fix a few confusions between "chipset" and "card_type".Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: don't expose backlight control when available through ACPIBen Skeggs
Avoid confusing userspace by not publishing backlight controls if ACPI equivalents are available. Reported-by: Aaron Sowry <aaron@aeneby.se> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau/pm: improve memtiming mappingsRoy Spliet
Improvements: - Fix bug in switch statement - Add parts of 0x10022c, 0x10023c - Clean up 0x100234 - Comment out assumption in 0x100228 until verified Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Make PCIE GART size depend on the available RAMIN space.Francisco Jerez
Reported-by: Tomas Miljenovic <tomasmiljenovic@gmail.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Return error from nouveau_gpuobj_new if we're out of RAMIN.Francisco Jerez
Reported-by: Tomas Miljenovic <tomasmiljenovic@gmail.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Fix compilation issues in nouveau_pm when CONFIG_HWMON is not setMartin Peres
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Don't use load detection for connector polling.Francisco Jerez
Analog output polling makes GL programs jerky when pageflip is being used because it's carried out with the mode_config mutex held. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv10-nv20: Fix instability after MPLL changes.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv50: implement possible workaround for NV86 PGRAPH TLB flush hangBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Don't poll LVDS outputs.Francisco Jerez
Reported-by: Xavier Chantry <chantry.xavier@gmail.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Use "force" to decide if analog load detection is ok or not.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv04: Fix scanout over the 16MB mark.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: fix nv40 pcie gart sizeLucas Stach
Nouveau sets the PCIE GART size to 64MiB for all cards before nv50, but nv40 has enough RAMIN space to support 512MiB GART size. This patch fixes this value to make use of this hardware capability. Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nva3: fix overflow in fixed point math used for pll calculationBen Skeggs
And a slight tweak which gets us closer to VBIOS-calculated numbers. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv10: Balance RTs expected to be accessed simultaneously by the 3d engine.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Expose some BO usage flags to userspace.Francisco Jerez
This will be needed for Z compression and to take smarter placement decisions. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Acked-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Reduce severity of the unknown getparam error.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Acked-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Avoid lock dependency between ramht and ramin spinlocks.Francisco Jerez
The ramht code called some gpuobj functions with the HARDIRQ-safe RAMHT spinlock held, this could potentially lead to a dead lock because ramin_lock is HARDIRQ-unsafe. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nouveau: Some random cleanups.Francisco Jerez
Remove some unused/duplicated definitions and make sparse happy again. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv11: Fix bad PLL detection false positive.Francisco Jerez
Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-11-18drm/nv04-nv40: Fall back to panel rescaling if we have no usable native mode.Francisco Jerez
This allows the user to set a mode larger than the native one, useful if we had trouble finding the actual native mode (e.g. because it goes above the hardware bandwidth limits). Reported-by: Grzesiek Sójka <pld@pfu.pl> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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