- 08 Sep, 2010 26 commits
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Daniel Vetter authored
Sometimes (like when flushing in preparation of batchbuffer execution) we know that we'll emit a request but haven't yet done so. Allow this case by simply taking the next seqno by default. Ensure that a request is eventually emitted before waiting for an request by issuing it in i915_wait_request iff this is not yet done. Also replace one open-coded version of i915_gem_object_wait_rendering, to prevent future code-diversion. Chris Wilson asked me to explain and clarify what this patch does and why. Here it goes: Old way of moving objects onto the active list and associating them with a reques: 1. i915_add_request + store the returned seqno somewhere 2. i915_gem_object_move_to_active (with the stored seqno as parameter) For the current users, this is all fine. But I'd like to associate objects (and fence regs) with the batchbuffer request deep down in the execbuf call-chain. I thought about three ways of implementing this. a) Don't care, just emit request when we need a new seqno. When heavily pipelining fence reg changes, this would have caused tons of superflous request (and corresponding irqs). b) Thread all changed fences, objects, whatever through the execbuf-maze, so that when we emit a request, we can store the new seqno at all the right places. c) Kill that seqno-threading-around business by simply storing the next seqno, i.e. allow 2. to be done before 1. in the above sequence. I've decided to implement c) (in this patch). The following patches are just fall-out that resulted from this small conceptual change. * We can handle the flushing list processing where we actually emit a flush (i915_gem_flush and i915_retire_commands) instead of in i915_add_request. The code makes IMHO more sense this way (and i915_add_request looses the flush_domains parameter, obviously). * We can avoid emitting unnecessary requests. IMHO there's no point in emitting more than one request per batchbuffer (with or without an corresponding irq). * By enforcing 2. before 1. ordering in the above sequence the seqno argument of i915_gem_object_move_to_active is redundant and can be dropped. v2: Now i915_wait_request issues request if it is not yet emitted. Also introduce i915_gem_next_request_seqno(dev) just in case we ever need to do some prep work before using a new seqno. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> [ickle: Keep i915_gem_object_set_to_display_plane() uninterruptible.] Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk>
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Jesse Barnes authored
Useful for capturing register read/write traces to send to the hw guys. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Chris Wilson authored
Store the pixel-multiplier on the adjusted mode and avoid modifying the requested mode. Signed-off-by: -
Chris Wilson authored
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Chris Wilson authored
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Chris Wilson authored
Instead of sleeping for an arbitrary length of time (the documentation fails to specify how long to wait for) wait until the load detection has changed state (or at most the 20ms as before). Signed-off-by: -
Chris Wilson authored
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Sitsofe Wheeler authored
With the extra intel_wait_for_vblank added in commit 9d0498a2 periodic stalls were being triggered (which were detected by i915_hangcheck_elapsed). Partially revert this change for now. Signed-off-by:
Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by:
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Chris Wilson authored
Fix a minor confusion between intel_page_flip_finish(pipe) and intel_page_flip_finish_plane(plane) -- should have no effect as currently we map pipe 0 to plane 0 (and pipe 1 to plane 1). Signed-off-by: -
Chris Wilson authored
My Samsung N210 has a VBT with DEVICE_TYPE_INT_LFP with a zero addin-offset. With the check in place, the panel was declared absent. v2: Only trust BIOS writers that have graduated to writing OpRegions. (We are all doomed.) Signed-off-by:
Adam Jackson <ajax@redhat.com>
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Chris Wilson authored
It is recommended that we use the Video BIOS tables that were copied into the OpRegion during POST when initialising the driver. This saves us from having to furtle around inside the ROM ourselves and possibly allows the vBIOS to adjust the tables prior to initialisation. On some systems, such as the Samsung N210, there is no accessible VBIOS and the only means of finding the VBT is through the OpRegion. v2: Rearrange the code so that ASLE is enabled along with ACPI v3: Enable OpRegion parsing even without ACPI Signed-off-by: -
Chris Wilson authored
It's part of the generic Intel driver infrastructure so rename it in prepreparation for using it for VBT. Signed-off-by: -
Chris Wilson authored
If we don't flush the write then we can not be sure that the border colour will have taken effect by the time we try to read it back. Signed-off-by: -
Chris Wilson authored
wait_for() uses msleep() to yield the cpu whilst spinning waiting for a register to change. kdb asserts that mode changes are atomic and so prohibits msleep. The alternative would be to use mdelay or to simply probe the register more often instead of busy waiting. Signed-off-by: -
Chris Wilson authored
Jesse's feedback from using the wait_for() macro was that the msleep argument was that it was superfluous and made the macro more difficult to use and to read. As the actually amount of time to sleep is not critical, the crucial part is to sleep and let the processor schedule something else whilst we wait for the event, replace the argument with a hardcoded value. Signed-off-by: -
Daniel Vetter authored
ums-gem code correctly cancels the retire work (at lastclose time), kms does not do so. Fix this by canceling the work right after ideling the gpu. While staring at the code I noticed that the work function is not static. Fix this, too. Signed-off-by:
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Daniel Vetter authored
When the module unloads, all users should be gone, hence all bo references held by userspace, too. This should already result in an idle ringbuffer. Still, be paranoid and idle gem before starting the unload dance. Also kill the call to i915_gem_lastclose under an if (kms), it's a noop for kms. Signed-off-by:
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Daniel Vetter authored
Kill any outstanding unpin_work when destroying the corresponding crtc. Then flush the workqueue before the gem teardown, in case any unpin work is still outstanding. Signed-off-by:
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Daniel Vetter authored
idle_work wasn't cleaned up at all. It takes &dev->struct_mutex, but accesss the mode_config crtc list (without any other locking!). Hence this work needs to be canceled before calling drm_mode_config_cleanup. As evidenced by the kernel's object debuggin code, the current code also cleans up the timer to early (it gets rearmed). So move it right before the final cleanup (it seems to work). Also unconditionally set up the idle_timer in intel_increase_pllclock. If we're unlucky the timer might fire right away, rendering the call in the modesetting teardown pointless. Signed-off-by:
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Daniel Vetter authored
With kms, interrupts now get disabled in the modesetting cleanup. So free the error state afterwards, it currently gets allocated in the interrupt handler. Signed-off-by:
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Daniel Vetter authored
hotplug_work is queued by the hotplug interrupt and only either emits a hotplug uevent or queues a crt poll slow-work. No other locking. So it's safe to cancel this work _after_ irq's have been turned off. But before the modesetting objects are destroyed because the hotplug function accesses them (without locking). The current code (for kms) only switches irqs off after modesetting teardown, hence move the irq teardown into the modeset cleanup right before the crtc cleanup. Signed-off-by:
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Daniel Vetter authored
This is the first patch to clean up module unload races due to outstanding timers/work. Preparatory step: Thou shalt not destroy the workqueue when new work might still get enqued. Now error_work gets queued by the hangcheck timer and only (atomically) reads the chip wedged status. So cancel it right after the hangcheck timer is killed. But the hangcheck is armed by interrupts, so move everything after irqs are disabled. Also change a del_timer to a del_timer_sync in the ums gem code, the hangcheck timer is self-rearming. Signed-off-by:
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Daniel Vetter authored
struct intel_dp contains both struct intel_encoder at the beginning (as it's base-class) and an i2c adapater. When initializing, the i2c adapter gets assigned intel_encoder->ddc_adaptor = &intel_dp->adapter and the generic intel_encode_destroy happily calls kfree on this pointer. Ouch. Fix this by using a dp specific cleanup function. Signed-off-by:
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Chris Wilson authored
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Chris Wilson authored
This reverts commit b9421ae8. This warning was so prelevant, even for apparently working machines, that it was just causing fear, anxiety and panic. The root cause still remains, so we will add some better debugging when we focus on fixing it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=17021Reported-by:
Maciej Rutecki <maciej.rutecki@gmail.com> Signed-off-by:
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Chris Wilson authored
This reverts commit 0f3ee801. Enabling LVDS on pipe A was causing excessive wakeups on otherwise idle systems due to i915 interrupts. So restrict the LVDS to pipe B once more, whilst the issue is properly diagnosed. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16307Reported-and-tested-by:
Enrico Bandiello <enban@postal.uv.es> Poked-by:
Florian Mickler <florian@mickler.org> Signed-off-by:
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- 07 Sep, 2010 14 commits
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Chris Wilson authored
This reverts commit ce171780. This commit has been independently bisected a few times as being the cause of a s2ram failure. Reported-and-tested-by:
Kyle McMartin <kyle@mcmartin.ca> Reported-and-tested-by:
Andy Isaacson <adi@hexapodia.org> Cc: Zou Nan hai <nanhai.zou@intel.com> Signed-off-by:
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Zhenyu Wang authored
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:
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Zhenyu Wang authored
MI_FLUSH is being deprecated, but still available on Sandybridge. Make sure it's enabled as userspace still uses MI_FLUSH. Signed-off-by:
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Zhenyu Wang authored
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:
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Zhenyu Wang authored
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Zhenyu Wang authored
It should shift bit 39-32 into pte's bit 11-4. Reported-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Chris Wilson authored
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 authored
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: -
Simon Farnsworth authored
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:
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Chris Wilson authored
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 authored
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:
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Chris Wilson authored
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 authored
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, 14571b4c). 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=15109Signed-off-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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Chris Wilson authored
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=29141Signed-off-by:
Adam Hill <sidepipeuk@yahoo.co.uk>
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