- 08 Sep, 2010 40 commits
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Chris Wilson authored
Signed-off-by:Chris Wilson <chris@chris-wilson.co.uk>
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Jesse Barnes authored
Otherwise we may not be able to train the DP link. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Jesse Barnes authored
When turning on or off the VDD AUX bit, we need to give the panel time to start or stop or AUX transactions may fail. Signed-off-by:
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Jesse Barnes authored
Mode set sequence outlines when the AUX VDD bit should be set and cleared, and it's separate from the panel power sequence. Signed-off-by:
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Jesse Barnes authored
Mode set sequence requires that we start training, then enable the panel, then complete training. So split the DP training function into two parts; the first enables the DP port and sets training pattern 1 and the second completes the training. As part of this, remove some redundant function args from the various DP handling functions and use the intel_dp fields everywhere we can. Signed-off-by:
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Jesse Barnes authored
Mode setting sequence specifies that we use VDD AUX for configuration and detection, and early in the mode set sequence. Only later (after DP_A has started training) should we actually enable panel power. Signed-off-by:
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Jesse Barnes authored
Fix the test so we don't try to use the 450MHz refclk on PCH attached eDP. References: https://bugs.freedesktop.org/show_bug.cgi?id=29141Signed-off-by:
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Jesse Barnes authored
Panel needs to be powered up. Signed-off-by:
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Dan Carpenter authored
snprintf() returns the number of bytes which would have been used if there was enough space. It can be larger than the size of the buffer. Obviously in this case the buffer is large enough but everyone just copy and pastes this code so it's better to limit it and set a good example. Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Daniel Vetter authored
Use the detection from intel-gtt.ko instead. Hooray! Also move the stolen mem allocator to the other gtt stuff in dev_prv->mem. v2: Chris Wilson noted that my error handling was crap. Fix it. He also said that this fixes a problem on his i845. Indeed, i915_probe_agp misses a special case for i830/i845 stolen mem detection. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=25476 Cc: stable@kernel.org Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Daniel Vetter authored
Not used and simply confusing. Signed-off-by:
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Daniel Vetter authored
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Daniel Vetter authored
This way create_gatt_table become dummy glue functions for the fake agp driver - rename them accordingly (and kill the now unnecessary i9xx copy). With this change, the gtt initialization code is almost independant from the agp stuff. Two things are still missing: - the scratch page is created by the generic agp code. - filling the whole gtt with scratch_page ptes is not yet consolidated - this needs abstracted pte handling, first. Signed-off-by:
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Daniel Vetter authored
The only difference between i915 and i965 was the calculation of the gtt address. So merge these two paths into one. Otherwise the same changes as in the i830 setup consolidation. Signed-off-by:
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Daniel Vetter authored
Slighlty reordered sequence was necessary. Also don't set agp_bridge->gatt_bus_addr anymore. Only used by generic agp helper functions, hence unnecessary for the intel fake agp driver. Signed-off-by:
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Daniel Vetter authored
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Daniel Vetter authored
This way around this can be extracted into common code. Also use a common cleanup function (and give it a generic name). Signed-off-by:
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Daniel Vetter authored
Also move the Sandybdridge size detection into gtt_total_entries, like the rest. Signed-off-by:
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Daniel Vetter authored
Slight reordering of the init sequence required. Signed-off-by:
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Daniel Vetter authored
Same idea as INTEL_INFO from drm/i915. This - reduces the dependancy on agp_driver - stops the what-does-IS_I965G-mean confusion (here it's just gen4, in drm/i915 it's gen >=4) - further prepares the separation of the fake agp driver from the rest. Signed-off-by:
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Daniel Vetter authored
In commit f1befe71 Chris Wilson added some code to clear the full gtt on g33/pineview instead of just the mappable part. The code looks like it was copy-pasted from agp/intel-gtt.c, at least an identical piece of code is still there (in intel_i830_init_gtt_entries). This lead to a regression in 2.6.35 which was supposedly fixed in commit e7b96f28 Now this commit makes absolutely no sense to me. It seems to be slightly confused about chipset generations - it references docs for 4th gen but the regression concerns 3rd gen g33. Luckily the the g33 gmch docs are available with the GMCH Graphics Control pci config register definitions. The other (bigger problem) is that the new check in there uses the i830 stolen mem bits (.5M, 1M or 8M of stolen mem). They are different since the i855GM. The most likely case is that it hits the 512M fallback, which was probably the right thing for the boxes this was tested on. So the original approach by Chris Wilson seems to be wrong and the current code is definitely wrong. There is a third approach by Jesse Barnes from his RFC patch "Who wants a bigger GTT mapping range?" where he simply shoves g33 in the same clause like later chipset generations. I've asked him and Jesse confirmed that this should work. So implement it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16891$Tested-by:
Anisse Astier <anisse@astier.eu> Cc: stable@kernel.org Signed-off-by:
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Daniel Vetter authored
Start to separate the fake agp driver from the rest of intel-gtt.c Signed-off-by:
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Daniel Vetter authored
agp/intel_gtt.c and drm/i915/i915_dma.c don't calculate this the same way: The intel-gtt code seems to use the actual gtt size, the drm module just the mappable. Go with the logic from the drm module because that's the more conservative choice. But conserve the original code in intel_gtt_total_size for later use. Signed-off-by:
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Daniel Vetter authored
The dedection function in drm/i915/i915_dma.c works without it, so drop it here, too. All the values are disdinct, anyway. Signed-off-by:
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Daniel Vetter authored
This somewhat aligns it with the version in drm/i915/i915_dma.c. Changes: - s/gtt_entries/stolen_size - track overhead entries in a seperate var (the effective gtt size calculation will be extracted later on). - subtract the overhead at the end instead of in each clause. Signed-off-by:
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Daniel Vetter authored
This uses the new mappable gtt size detection from the previous patch. Signed-off-by:
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Daniel Vetter authored
This implementation is stolen from drm/i915, but is equivalent to the code sprinkled over intel-gtt.c in the various fetch_size functions. It's not yet used anywhere, though. Also introduce intel_gtt_init which only calls intel_gtt_stolen_entries. Over the course of the next patches, this will grow untill it contains the complete init sequence starting from the call to gtt_mappable_entries. Signed-off-by:
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Daniel Vetter authored
First simple step towards a more generic initialization. This is needed to disentangle the agp stuff from the stuff that is actually needed by drm/i915. Signed-off-by:
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Daniel Vetter authored
When the intel-gtt code now longer depends on agp, we cannot rely on this. So store a local reference in intel-gtt.c. Signed-off-by:
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Daniel Vetter authored
Add a few definitions to it that are already shared and that will be shared in the future (like the number of stolen entries). No functional changes in here. Signed-off-by:
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Daniel Vetter authored
Now that the disentangling is complete, stop including intel-gtt.c from intel-agp.c. The linux build system _really_ doesn't allow .c source files with the same name as the module. It fails with the following message when trying to build such a bugger: make[3]: Circular drivers/char/agp/intel-agp.o <- drivers/char/agp/intel-agp.o dependency dropped. Instead of renameing intel-agp.c I've simply created a new module out of intel-gtt.c. Renaming intel-agp.ko to something else is not an option for it will surely kill someones boot process. This also paves the way to use the gtt code without loading the agp driver. Signed-off-by:
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Daniel Vetter authored
This just splits the device list into two and moves the gtt related stuff to intel-gtt.c. The two new devices lists also lose the not longer needed fields. There where only about 5 cases anyway with both a gmch and a possible agp port, so the duplication of entries is rather small. Additionally kill 2 out of the three Ironlake mobile entries that only differed in host bridge pci id. Signed-off-by:
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Matthew Garrett authored
It seems to be possible to program a new mode without disabling the panel if the panel fitter setup doesn't change. Add support for that. Signed-off-by:
Matthew Garrett <mjg@redhat.com> Acked-by:
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Jesse Barnes authored
We really need a macro to test whether a given connector has a panel attached rather than sprinkling HAS_PCH_SPLIT/IS_eDP/has_edp_encoder etc all over. In the meantime, fix the bug... Signed-off-by:
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Jesse Barnes authored
Make them match the others and add BPP definitions. Signed-off-by:
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Chris Wilson authored
Our usage of kmap() cannot return NULL here, so remove the unnecessary error handling. Signed-off-by: -
Chris Wilson authored
The GPU records whether it is currently waiting for a completion of a WAIT_FOR_EVENT in the RB_WAIT bit in the ringbuffer control registers. On third generation chipsets and later, a write of 1 to this bit breaks the hang and returns the GPU to arbitration, i.e. the GPU should continue executing the reminder of the batchbuffer and return to normal operations. By adding this to hangcheck we can avoid a full GPU reset under these conditions. Signed-off-by: -
Chris Wilson authored
If we disable the pipe and the GPU is currently waiting on a scanline WAIT_FOR_EVENT, the GPU will hang. Fortunately, there is a magic bit which we can write on i915+ to break this wait after disabling the pipe. References: Bug 29252 - [Arrandale] Hung WAIT_FOR_EVENT when running rss-glx-skyrocket https://bugs.freedesktop.org/show_bug.cgi?id=29252 Bug 28964 - [i965gm] GPU infinite MI_WAIT_FOR_EVENT while watching video in Totem https://bugs.freedesktop.org/show_bug.cgi?id=28964 and many others. Signed-off-by:
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Chris Wilson authored
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Chris Wilson authored
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