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path: root/drivers/gpu/drm/i915/i915_drv.c
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2012-02-13drm/i915: protect force_wake_(get|put) with the gt_lockDaniel Vetter
commit 9f1f46a45a681d357d1ceedecec3671a5ae957f4 upstream. The problem this patch solves is that the forcewake accounting necessary for register reads is protected by dev->struct_mutex. But the hangcheck and error_capture code need to access registers without grabbing this mutex because we hold it while waiting for the gpu. So a new lock is required. Because currently the error_state capture is called from the error irq handler and the hangcheck code runs from a timer, it needs to be an irqsafe spinlock (note that the registers used by the irq handler (neglecting the error handling part) only uses registers that don't need the forcewake dance). We could tune this down to a normal spinlock when we rework the error_state capture and hangcheck code to run from a workqueue. But we don't have any read in a fastpath that needs forcewake, so I've decided to not care much about overhead. This prevents tests/gem_hangcheck_forcewake from i-g-t from killing my snb on recent kernels - something must have slightly changed the timings. On previous kernels it only trigger a WARN about the broken locking. v2: Drop the previous patch for the register writes. v3: Improve the commit message per Chris Wilson's suggestions. Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-13drm/i915: convert force_wake_get to func pointer in the gpu reset codeDaniel Vetter
commit 8109021313c7a3d8947677391ce6ab9cd0bb1d28 upstream. This was forgotten in the original multi-threaded forcewake conversion: commit 8d715f0024f64ad1b1be85d8c081cf577944c847 Author: Keith Packard <keithp at keithp.com> Date: Fri Nov 18 20:39:01 2011 -0800 drm/i915: add multi-threaded forcewake support Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-12-16drm/i915: enable semaphores on per-device defaultsEugeni Dodonov
This adds a default setting for semaphores parameter, and enables semaphores by default on IVB. For now, as semaphores interaction with VTd causes random issues on SNB, we do not enable them by default. But they can still be enabled via the semaphores=1 kernel parameter. v2: enables semaphores on SNB when IO remapping is disabled, with base on Keith Packard patch. CC: Daniel Vetter <daniel.vetter@ffwll.ch> CC: Ben Widawsky <ben@bwidawsk.net> CC: Keith Packard <keithp@keithp.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862 Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: By default, enable RC6 on IVB and SNB when reasonableKeith Packard
RC6 should always work on IVB, and should work on SNB whenever IO remapping is disabled. RC6 never works on Ironlake. Make the default value for the parameter follow these guidelines. Setting the value to either 0 or 1 will force the specified behavior. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567 Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu>
2011-11-23drm/i915: add multi-threaded forcewake supportKeith Packard
On IVB C0+ with newer BIOSes, the forcewake handshake has changed. There's now a bitfield for different driver components to keep the GT powered on. On Linux, we centralize forcewake handling in one place, so we still just need a single bit, but we need to use the new registers if MT forcewake is enabled. This needs testing on affected machines. Please reply with your tested-by if you had problems after a BIOS upgrade and this patch fixes them. v2: force MT mode. shift by 16 v3: set MT force wake bits then check ECOBUS Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42923 Tested-by: Manoj Iyer <manoj.iyer@canonical.com> Tested-by: Robert Hooker <robert.hooker@canonical.com> Tested-by: Keith Packard <keithp@keithp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-11-23Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (31 commits) drm: integer overflow in drm_mode_dirtyfb_ioctl() drivers/gpu/vga/vgaarb.c: add missing kfree drm/radeon/kms/atom: unify i2c gpio table handling drm/radeon/kms: fix up gpio i2c mask bits for r4xx for real ttm: Don't return the bo reserved on error path drm/radeon/kms: add a CS ioctl flag not to rewrite tiling flags in the CS drm/i915: Fix inconsistent backlight level during disabled drm, i915: Fix memory leak in i915_gem_busy_ioctl(). drm/i915: Use DPCD value for max DP lanes. drm/i915: Initiate DP link training only on the lanes we'll be using drm/i915: Remove trailing white space drm/i915: Try harder during dp pattern 1 link training drm/i915: Make DP prepare/commit consistent with DP dpms drm/i915: Let panel power sequencing hardware do its job drm/i915: Treat PCH eDP like DP in most places drm/i915: Remove link_status field from intel_dp structure drm/i915: Move common PCH_PP_CONTROL setup to ironlake_get_pp_control drm/i915: Module parameters using '-1' as default must be signed type drm/i915: Turn on another required clock gating bit on gen6. drm/i915: Turn on a required 3D clock gating bit on Sandybridge. ...
2011-11-22Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux ↵Dave Airlie
into drm-fixes * 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: (25 commits) drm/i915: Fix inconsistent backlight level during disabled drm, i915: Fix memory leak in i915_gem_busy_ioctl(). drm/i915: Use DPCD value for max DP lanes. drm/i915: Initiate DP link training only on the lanes we'll be using drm/i915: Remove trailing white space drm/i915: Try harder during dp pattern 1 link training drm/i915: Make DP prepare/commit consistent with DP dpms drm/i915: Let panel power sequencing hardware do its job drm/i915: Treat PCH eDP like DP in most places drm/i915: Remove link_status field from intel_dp structure drm/i915: Move common PCH_PP_CONTROL setup to ironlake_get_pp_control drm/i915: Module parameters using '-1' as default must be signed type drm/i915: Turn on another required clock gating bit on gen6. drm/i915: Turn on a required 3D clock gating bit on Sandybridge. drm/i915: enable cacheable objects on Ivybridge drm/i915: add constants to size fence arrays and fields drm/i915: Ivybridge still has fences! drm/i915: forcewake warning fixes in debugfs drm/i915: Fix object refcount leak on mmappable size limit error path. drm/i915: Use mode_config.mutex in ironlake_panel_vdd_work ...
2011-11-10drm/i915: Module parameters using '-1' as default must be signed typeKeith Packard
Testing i915_panel_use_ssc for the default value was broken, so the driver would never autodetect the correct value. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Michel Alexandre Salim <salimma@fedoraproject.org> Tested-by: Michel Alexandre Salim <salimma@fedoraproject.org> Cc: stable@kernel.org
2011-11-06Merge branch 'docs/docbook/drm' of git://github.com/mfwitten/linux into ↵Randy Dunlap
docs-move
2011-10-31gpu: add module.h to drivers/gpu files as required.Paul Gortmaker
So that we don't get build failures once the implicit module.h presence is removed. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-28drm/i915: only match on PCI_BASE_CLASS_DISPLAYDaniel Vetter
... not DISPLAY_VGA, because we ignore the VGA subclass with our class_mask. It confused me until Chris Wilson clued me up. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-20i915: Move i915_read/write out of lineAndi Kleen
With the tracing code in there they are far too big to inline. .text savings compared to a non force inline kernel: i915_restore_display 4393 12036 +7643 i915_save_display 4295 11459 +7164 i915_handle_error 2979 6666 +3687 i915_driver_irq_handler 2923 5086 +2163 i915_ringbuffer_info 458 1661 +1203 i915_save_vga - 1200 +1200 i915_driver_irq_uninstall 453 1624 +1171 i915_driver_irq_postinstall 913 2078 +1165 ironlake_enable_drps 719 1872 +1153 i915_restore_vga - 1142 +1142 intel_display_capture_error_state 784 2030 +1246 intel_init_emon 719 2016 +1297 and more ... [AK: these are older numbers, with the new SNB forcewake checks it will be even worse] Signed-off-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-10-20Merge branch 'fix-pch-refclk' into fooKeith Packard
2011-09-28Merge branch 'drm-intel-fixes' into drm-intel-nextKeith Packard
2011-09-28drm/i915: Initialize PCH refclks at modeset init timeKeith Packard
The reference clock configuration must be done before any mode setting can occur as all outputs must be disabled to change anything. Initialize the clocks after turning everything off during the initialization process. Also, re-initialize the refclk at resume time. Signed-off-by: Keith Packard <keithp@keithp.com>
2011-09-27drm/i915: Allow SSC parameter to override VBT valueKeith Packard
Allow SSC to be enabled even when the BIOS disables it for testing SSC paths. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-09-21drm/i915: FBC off for ironlake and older, otherwise on by defaultKeith Packard
Make the default FBC behaviour chipset specific, allowing us to turn it on by default for Ironlake and older where it has been seen to cause trouble with screen updates. Signed-off-by: Keith Packard <keithp@keithp.com> Tested-by: Francis Moreau <francis.moro@gmail.com>
2011-09-19Drivers: i915: Fix all space related issues.Akshay Joshi
Various issues involved with the space character were generating warnings in the checkpatch.pl file. This patch removes most of those warnings. Signed-off-by: Akshay Joshi <me@akshayjoshi.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-29DocBook/drm: Clean up code commentMichael Witten
Signed-off-by: Michael Witten <mfwitten@gmail.com>
2011-07-13drm/i915: provide module parameter descriptionBen Widawsky
Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-07-13drm/i915: add module parameter compiler hintsBen Widawsky
Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-07-13drm/i915: Cache GT fifo count for SandyBridgeChris Wilson
The read back of the available FIFO entries is vital for system stability, but extremely costly. However, we only need a guide so as to avoid eating into the reserved entries and since we are the only consumer we can cache the read of the count from the last write. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-07-12Merge branch 'drm-intel-fixes' into drm-intel-nextKeith Packard
2011-07-12Revert "drm/i915: enable rc6 by default"Keith Packard
This reverts commit a51f7a66fb5e4af5ec4286baef940d06594b59d2. We still have a few Ironlake and Sandybridge machines which fail when RC6 is enabled. Better luck next release? Signed-off-by: Keith Packard <keithp@keithp.com>
2011-07-08drm/i915: Enable i915 frame buffer compression by defaultKeith Packard
We'll try again with the new fixes. Prepare to see this reverted when we get regression reports... Signed-off-by: Keith Packard <keithp@keithp.com>
2011-07-07Merge branch 'drm-intel-fixes' into drm-intel-nextKeith Packard
2011-07-07drm/i915: Enable GPU reset on Ivybridge.Kenneth Graunke
According to the hardware documentation, GDRST is exactly the same as on Sandybridge. So simply enable the existing code. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-29Merge branch 'drm-intel-fixes' into drm-intel-nextKeith Packard
2011-06-29drm/i915: move IRQ function table init to i915_irq.cJesse Barnes
This lets us make the various IRQ functions static and helps avoid problems like the one fixed in "drm/i915: Use chipset-specific irq installers" where one of the exported functions was called rather than the chipset specific version. This also fixes a UMS-mode bug -- the correct irq functions for IRL and later chips were only getting loaded in the KMS path. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-29drm/i915: hangcheck disable parameterBen Widawsky
Provide a parameter to disable hanghcheck. This is useful mostly for developers trying to debug known problems, and probably should not be touched by normal users. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-28drm/i915: forcewake fix after resetBen Widawsky
The failure is as follows: 1. Userspace gets forcewake lock, lock count >=1 2. GPU hang/reset occurs (forcewake bit is reset) 3. count is now incorrect The failure can only occur when using the forcewake userspace lock. This has the unfortunate consequence of messing up the driver as well as userspace, unless userspace closes the debugfs file, the kernel will never end up waking the GT since the refcount will be > 1. The solution is to try to recover the correct forcewake state based on the refcount. There is a period of time where userspace reads/writes may occur after the reset, before the GT has been forcewaked. The interface was never designed to be a perfect solution for userspace reads/writes, and the kernel portion is fixed by this patch. Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-24Merge branch 'drm-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (169 commits) drivers/gpu/drm/radeon/atom.c: fix warning drm/radeon/kms: bump kms version number drm/radeon/kms: properly set num banks for fusion asics drm/radeon/kms/atom: move dig phy init out of modesetting drm/radeon/kms/cayman: fix typo in register mask drm/radeon/kms: fix typo in spread spectrum code drm/radeon/kms: fix tile_config value reported to userspace on cayman. drm/radeon/kms: fix incorrect comparison in cayman setup code. drm/radeon/kms: add wait idle ioctl for eg->cayman drm/radeon/cayman: setup hdp to invalidate and flush when asked drm/radeon/evergreen/btc/fusion: setup hdp to invalidate and flush when asked agp/uninorth: Fix lockups with radeon KMS and >1x. drm/radeon/kms: the SS_Id field in the LCD table if for LVDS only drm/radeon/kms: properly set the CLK_REF bit for DCE3 devices drm/radeon/kms: fixup eDP connector handling drm/radeon/kms: bail early for eDP in hotplug callback drm/radeon/kms: simplify hotplug handler logic drm/radeon/kms: rewrite DP handling drm/radeon/kms/atom: add support for setting DP panel mode drm/radeon/kms: atombios.h updates for DP panel mode ...
2011-05-17drm/i915: enable rc6 by defaultJesse Barnes
With FBC disabled by default, it should be safe to enable RC6. So let's give it a try. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-17drm/i915: add fbc enable flag, but disable by defaultJesse Barnes
FBC has too many corner cases that we don't currently deal with, so disable it by default so we can enable more important features like RC6, which conflicts in some configurations. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31742 Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-13drm/i915: set IBX pch type explicitlyJesse Barnes
This is a little less confusing than relying on the implicit zeroing of the dev_priv. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-13drm/i915: add Ivy Bridge PCI IDs and driver feature structsJesse Barnes
There are several variants, set feature bits appropriately for both mobile and desktop parts. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-13drm/i915: add PantherPoint PCH IDJesse Barnes
We can treat PantherPoint as CougarPoint as far as display goes. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-05-13drm/i915: Revert i915.semaphore=1 default from i915 mergeAndy Lutomirski
My Q67 / i7-2600 box has rev09 Sandy Bridge graphics. It hangs instantly when GNOME loads and it hangs so hard the reset button doesn't work. Setting i915.semaphore=0 fixes it. Semaphores were disabled in a1656b9090f7 ("drm/i915: Disable GPU semaphores by default") in 2.6.38 but were then re-enabled (by mistake?) by the merge 47ae63e0c2e5 ("Merge branch 'drm-intel-fixes' into drm-intel-next"). (It's worth noting that the offending change is i915_drv.c, which was not marked as a conflict - although a 'git show --cc' on the merge does show that neither parent had it set to 1) Signed-off-by: Andy Lutomirski <luto@mit.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-10drm/i915: reference counted forcewakeBen Widawsky
Provide a reference count to track the forcewake state of the GPU and give a safe mechanism for userspace to wake the GT. This also potentially saves a UC read if the GT is known to be awake already. The reference count is atomic, but the register access and hardware wake sequence is protected by struct_mutex. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-03-14Merge remote branch 'intel/drm-intel-next' of ../drm-next into drm-core-nextDave Airlie
* 'intel/drm-intel-next' of ../drm-next: (755 commits) drm/i915: Only wait on a pending flip if we intend to write to the buffer drm/i915/dp: Sanity check eDP existence drm/i915: Rebind the buffer if its alignment constraints changes with tiling drm/i915: Disable GPU semaphores by default drm/i915: Do not overflow the MMADDR write FIFO Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing" drm/i915: Don't save/restore hardware status page address register drm/i915: don't store the reg value for HWS_PGA drm/i915: fix memory corruption with GM965 and >4GB RAM Linux 2.6.38-rc7 Revert "TPM: Long default timeout fix" drm/i915: Re-enable GPU semaphores for SandyBridge mobile drm/i915: Replace vblank PM QoS with "Interrupt-Based AGPBUSY#" Revert "drm/i915: Use PM QoS to prevent C-State starvation of gen3 GPU" drm/i915: Allow relocation deltas outside of target bo drm/i915: Silence an innocuous compiler warning for an unused variable fs/block_dev.c: fix new kernel-doc warning ACPI: Fix build for CONFIG_NET unset mm: <asm-generic/pgtable.h> must include <linux/mm_types.h> x86: Use u32 instead of long to set reset vector back to 0 ... Conflicts: drivers/gpu/drm/i915/i915_gem.c
2011-03-07Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson
Apply the trivial conflicting regression fixes, but keep GPU semaphores enabled. Conflicts: drivers/gpu/drm/i915/i915_drv.h drivers/gpu/drm/i915/i915_gem_execbuffer.c
2011-03-07drm/i915: Disable GPU semaphores by defaultChris Wilson
Andi Kleen narrowed his GPU hangs on his Sugar Bay (SNB desktop) rev 09 down to the use of GPU semaphores, and we already know that they appear broken up to Huron River (mobile) rev 08. (I'm optimistic that disabling GPU semaphores is simply hiding another bug by the latency and side-effects of the additional device interaction it introduces...) However, use of semaphores is a massive performance improvement... Only as long as the system remains stable. Enable at your peril. Reported-by: Andi Kleen <andi-fd@firstfloor.org> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=33921 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-03-06drm/i915: Do not overflow the MMADDR write FIFOChris Wilson
Whilst the GT is powered down (rc6), writes to MMADDR are placed in a FIFO by the System Agent. This is a limited resource, only 64 entries, of which 20 are reserved for Display and PCH writes, and so we must take care not to queue up too many writes. To avoid this, there is counter which we can poll to ensure there are sufficient free entries in the fifo. "Issuing a write to a full FIFO is not supported; at worst it could result in corruption or a system hang." Reported-and-Tested-by: Matt Turner <mattst88@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34056 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-22drm/i915: Add a module parameter to ignore lid statusChris Wilson
Seems like we are forever to be cursed with buggy firmware, so allow the user to explicitly set the panel connection status. Of secondary utility for cases where I run laptops with the lid closed, but still want to configure the LVDS. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-16Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson
Grab the latest stabilisation bits from -fixes and some suspend and resume fixes from linus. Conflicts: drivers/gpu/drm/i915/i915_drv.h drivers/gpu/drm/i915/i915_irq.c
2011-02-09drm/i915: Disable RC6 on IronlakeChris Wilson
The automatic powersaving feature is once again causing havoc, with 100% reliable hangs on boot and resume on affected machines. Reported-by: Francesco Allertsen <fallertsen@gmail.com> Reported-by: Gui Rui <chaos.proton@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28582 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2011-02-07drm: rework PCI/platform driver interface.Dave Airlie
This abstracts the pci/platform interface out a step further, we can go further but this is far enough for now to allow USB to be plugged in. The drivers now just call the init code directly for their device type. Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-07drm: dumb scanout create/mmap for intel/radeon (v3)Dave Airlie
This is just an idea that might or might not be a good idea, it basically adds two ioctls to create a dumb and map a dumb buffer suitable for scanout. The handle can be passed to the KMS ioctls to create a framebuffer. It looks to me like it would be useful in the following cases: a) in development drivers - we can always provide a shadowfb fallback. b) libkms users - we can clean up libkms a lot and avoid linking to libdrm_*. c) plymouth via libkms is a lot easier. Userspace bits would be just calls + mmaps. We could probably mark these handles somehow as not being suitable for acceleartion so as top stop people who are dumber than dumb. Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-02-01drm/i915: Only bind to function 0 of the PCI deviceChris Wilson
Early chipsets (gen2/3) used function 1 as a placeholder for multi-head. We used to ignore these since they were not assigned to PCI_CLASS_DISPLAY_VGA. However with 934f992c7 we attempt to bind to all Intel PCI_CLASS_DISPLAY devices (and functions) to work in multi-gpu systems. This fails hard on gen2/3. Reported-by: Ferenc Wágner <wferi@niif.hu> Tested-by: Ferenc Wágner <wferi@niif.hu> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=28012 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2011-02-01Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson
Merge resume fixes from -fixes and an important fix for SDVO GMBUS.
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