- May 06, 2013
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Ben Widawsky authored
Because our context refcounting doesn't grab a ref at lookup time, it is unsafe to do so without the lock. NOTE: We don't have an easy way to put the assertion in the lookup function which is where this really belongs. Context switching is good enough because it actually asserts even more correctness by protecting the default_context. Signed-off-by:
Ben Widawsky <ben@bwidawsk.net> Reviewed-by:
Jesse Barnes <jbarnes@virtuousgeek.org> [danvet: s/BUG/WARN/] Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
Only one caller. Also drop the intel_ prefix as is now customary for platform specific and static functions. Reviewed-by:
Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by:
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Daniel Vetter authored
- PCH_ prefix for pch registers on ibx/cpt/ppt. - Drop the DP_ from the link defines, redundant. - Drop the GMCH from the data defines and instead give the special g4x registers a consistent _G4X postfix. v2: - Realign #defines and use tabs (Paulo). Reviewed-by:
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Daniel Vetter authored
This is possible thanks to moving the m/n stuff into pipe_config. Unfortunately we need to move them a bit to avoid forward declarations. Reviewed-by:
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Daniel Vetter authored
While at it, also extract a common helper to copy the timings from the cpu transcoder to the pch transcoder. That way it's really explicit how the lpt transcoder is hardcoded. v2: - Re-align #defines properly (Paulo). - Use cpu_transcoder when copying pipe timings (Paulo). - s/intel_pch_transcoder_enable/intel_pch_transcoder_set_timings/ since we already have a pch transcoder enable function, and this is clearer, too. - Fixup 80 char line overflow in intel_display.c. I've opted to ignore this in i915_reg.h and i915_ums.c since meh. Cc: Paulo Zanoni <przanoni@gmail.com> Reviewed-by:
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Daniel Vetter authored
Every time I read hsw code I get completely confused about this. So call it what it is more explicitly. Also, add an LPT_TRANSCONF for the pch transcoder A and use it in lpt-only code, to really unconfuse me. v2: s/plane/pipe/ in the TRANSCONF #define (Paulo). Reviewed-by:
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Daniel Vetter authored
With the hw state readout&check code it's important that the values we keep around are the canonical ones. Unfortunately when adding the pipe timings readout support I've missed that the write side adjusts the timings in the pipe config. Fix this up and so prevent the unsightly WARN noise in dmesg. This regression has been introduced in commit 1bd1bd80 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Apr 29 21:56:12 2013 +0200 drm/i915: hw state readout support for pipe timings Reported-by:
Paulo Zanoni <przanoni@gmail.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by:
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Mika Kuoppala authored
Storing context reference into request struct allows us to inspect context and its associated objects when requests are retired. Both ppgtt and arb robustness work will need this. Signed-off-by:
Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by:
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Chris Wilson authored
In order to be notified of when the context and all of its associated objects is idle (for if the context maps to a ppgtt) we need a callback from the retire handler. We can arrange this by using the kref_get/put of the context for request tracking and by inserting a request to demarque the switch away from the old context. [Ben: fixed minor error to patch compile, AND s/last_context/from/] Signed-off-by:
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Daniel Vetter authored
dp_init_connector adjusts the encoder type if it is a eDP panel. Use that to decide whether we should set up a hdmi connector or not. To do so reorder the hdmi connector setup sequence in ddi_init a bit. Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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- May 04, 2013
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Jesse Barnes authored
We can't read the pfit regs if the power well is off, so use the cached value. v2: re-add lost comment (Jesse) make sure the crtc using the fitter is actually enabled (Jesse) Signed-off-by: -
Mika Kuoppala authored
Before module unload is called, gpu_idle() will switch to default context. This will increment ref count of base object as the default context is 'running' on module unload time. Unreference the drm object so that when context is freed, base object is freed as well. v2: added comment to explain the refcounts (Ben Widawsky) Signed-off-by:
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- May 03, 2013
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Daniel Vetter authored
If we ever leak a non-DP compliant port width through here, we have a pretty serious issue. So just rip out all these WARNs - if we need them it's probably better to have them at a central place where we compute the dp lane count. Also use the new DDI width macro for FDI mode. Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by:
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- May 01, 2013
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Mika Kuoppala authored
Enabling PPGTT and also the need to track which context was guilty of gpu hang (arb robustness enabling) have put pressure for struct i915_hw_context to be more than just a placeholder for hw context state. In order to track object lifetime properly in a multi peer usage, add reference counting for i915_hw_context. v2: track i915_hw_context pointers instead of using ctx_ids (from Chris Wilson) v3 (Ben): Get rid of do_release() and handle refcounting more compactly. (recommended by Chis) v4: kref_* put inside static inlines (Daniel Vetter) remove code duplication on freeing context (Chris Wilson) v5: idr_remove and ctx->file_priv = NULL in destroy ioctl (Chris) This actually will cause a problem if one destroys a context and later refers to the idea of the context (multiple contexts may have the same id, but only 1 will exist in the idr). v6: Strip out the request related stuff. Reworded commit message. Got rid of do_destroy and introduced i915_gem_context_release_handle, suggested by Chris Wilson. v7: idr_remove can't be called inside idr_for_each (Chris Wilson) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> (v5) Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> (v7) Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> [danvet: Squash sob lines, the patch ping-ponged between Ben and Mika a bit ...] Signed-off-by:
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Ville Syrjälä authored
Reduce the size of the the src/dst viewport to keep the scalign ratios in check. v2: Below min size sprite handling squashed to previous patch Reviewed-by:
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Ville Syrjälä authored
Properly clip the source when the destination gets clipped by the pipe dimensions. Sadly the video sprite hardware is rather limited so it can't do proper sub-pixel postitioning. Resort to truncating the source coordinates to (macro)pixel boundary. The scaling checks are done using the strict drm_region functions. Which means that an error is returned when the min/max scaling ratios are exceeded. Also do some additional checking against various hardware limits. v2: Truncate src coords instead of rounding to avoid increasing src viewport size, and adapt to changes in drm_calc_{h,v}scale(). v3: Adapt to drm_region->drm_rect rename. Fix misaligned crtc_w for packed YUV formats when scaling isn't supported. v4: Use stricter scaling checks, use drm_rect_equals() v5: If sprite is below min size, make it invisible instead returning an error. Use WARN_ON() instead if BUG_ON(), and add one to sanity check the src viewport size. v6: Add comments to remind about src and dst coordinate types Reviewed-by: -
Ville Syrjälä authored
drm_rect_equals() tells whether two drm_rects are equal. Reviewed-by:
Dave Airlie <airlied@gmail.com> Signed-off-by:
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Ville Syrjälä authored
Add a debug function to print the rectangle in a human readable format. v2: Renamed drm_region to drm_rect, the function from drm_region_debug to drm_rect_debug_print(), and use %+d instead of +%d in the format. v3: Use %d format for width/height in the non fixed point case as well Reviewed-by: -
Ville Syrjälä authored
These functions calculate the scaling factor based on the source and destination rectangles. There are two version of the functions, the strict ones that will return an error if the min/max scaling factor is exceeded, and the relaxed versions that will adjust the src/dst rectangles in order to keep the scaling factor withing the limits. v2: Return error instead of adjusting regions, refactor common parts into one function, and split into strict and relaxed versions. v3: Renamed drm_region to drm_rect, add "_rect_" to the function names. v4: Fix "calculcate" typos Reviewed-by: -
Ville Syrjälä authored
struct drm_rect represents a simple rectangle. The utility functions are there to help driver writers. v2: Moved the region stuff into its own file, made the smaller funcs static inline, used 64bit maths in the scaled clipping function to avoid overflows (instead it will saturate to INT_MIN or INT_MAX). v3: Renamed drm_region to drm_rect, drm_region_clip to drm_rect_intersect, and drm_region_subsample to drm_rect_downscale. v4: Renamed some function parameters, improve kernel-doc comments a bit, and actually generate documentation for drm_rect.[ch]. v5: s/RETUTRNS/RETURNS/ Reviewed-by:Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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- Apr 30, 2013
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Daniel Vetter authored
Writing hw registers from compute_config? Just say no! In this case not too horrible since we write a constant 0, and only debugging would put something else in there. But while checking that code I've noticed that this register disappeared on pch platforms, so fix that up, too. And adjust the comment a bit, it's outdated. Reviewed-by:
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Daniel Vetter authored
This was still required a bit (on the cargo-cult side though) when the state was stored in dev_priv, and when the enable/disable sequence was botched a bit (to avoid too many updates). But with pipeconfig we always get a clean slate, so this is pointless. Rip it out. Reviewed-by:
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Daniel Vetter authored
pipe_config is the new dev_priv! More seriously, this is actually better since a pipe_config can be thrown away if the modeset compute config stage fails. Whereas any state stored in dev_prive needs to be painstakingly restored, since otherwise a dpms off/on will wreak massive havoc. Yes, that even applies to state only used in ->mode_set callbacks, since we need to call those even for dpms on when the Haswell power well cleared everything out. Reviewed-by:
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Jani Nikula authored
Both intel_opregion_enable_asle() and intel_enable_asle() have shrunk considerably. Merge them together into a static function in i915_irq.c, and rename to better reflect the purpose and the related platforms. No functional changes. Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
Damien Lespiau <damien.lespiau@intel.com> Signed-off-by:
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Jani Nikula authored
Realize that intel_enable_asle() is never called on PCH-split platforms or on VLV. Rip out the GSE irq enable for PCH-split platforms, which also happens to be incorrect for IVB+. This should not cause any functional changes. Signed-off-by:
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Jani Nikula authored
Stop calling intel_opregion_enable_asle() and consequently intel_enable_asle() on opregion init. It should not be necessary for these reasons: 1) On PCH split platforms, it only enables GSE interrupt, which is enabled in irq postinstall anyway. Moreover, the irq enable uses the wrong bit on IVB+. 2) On gen 2, it would enable a reserved pipestat bit. If there were gen 2 systems with opregion asle support, that is. And the gen 2 irq handler won't handle it anyway. 3) On gen 3-4, the irq postinstall will call intel_opregion_enable_asle() to enable the pipestat. In short, move the asle irq/pipestat enable responsibility to irq postinstall, which already happens to be in place. This should not cause any functional changes, but only do the one line change here for easier bisectability, just in case, and leave all the cleanups this allows to followup patches. Signed-off-by:
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Jani Nikula authored
Only set ASLE driver readiness (ARDY) and technology enabled indicator (TCHE) once per opregion init. There should be no need to do that at irq postinstall time. Also clear driver readiness at fini. While at it, add defines for driver readiness. Signed-off-by:
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Jani Nikula authored
Move near other defines, add TCHE in the name. No functional changes. Signed-off-by:
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Daniel Vetter authored
This does duplicate the logic in intel_crtc_mode_get a bit, but the issue is that we also should handle interlace modes and other insanity correctly. Hence I've opted for a sligthly more elaborate route where we first read out the crtc timings for the adjusted mode, and then optionally (not sure if we really need it) compute the modeline from that. v2: Also read out the pipe source dimensions into the requested mode. v3: Rebase on top of the moved cpu_transcoder. v4: Simplify CHECK_FLAGS logic as suggested by Chris Wilson. Also properly #undef that macro again. Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> (v3) [danvet: Use the existing mask for interlaced bits, spotted by Mika.] Signed-off-by: -
Daniel Vetter authored
We want to use the fdi m/n values to easily compute the adjusted mode dotclock on pch ports. Hence make sure the values stored in the pipe config are always reliable. v2: Fixup FDI TU readout. v3: Rebase on top of moved cpu_transcoder. Reviewed-by:
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Daniel Vetter authored
This code will get _really_ repetive, and we'll end up with tons more of this kind. So extract the common patterns. This should also help when we add a lazy pipe_config compare mode for fastboot. Reviewed-by:
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Daniel Vetter authored
Spotted while changing related code. Reviewed-by:
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Daniel Vetter authored
So on a bunch of setups we only have 2 fdi lanes available, e.g. hsw VGA or 3 pipes on ivb. And seemingly a lot of modes don't quite fit into this, among them the default 1080p mode. The solution is to dither down the pipe a bit so that everything fits, which this patch implements. But ports compute their state under the assumption that the bpp they pick will be the one selected, e.g. the display port bw computations won't work otherwise. Now we could adjust our code to again up-dither to the computed DP link parameters, but that's pointless. So instead when the pipe needs to adjust parameters we need to retry the pipe_config computation at the encoder stage. Furthermore we need to inform encoders that they should not increase bandwidth requirements if possible. This is required for the hdmi code, which prefers the pipe to up-dither to either of the two possible hdmi bpc values. LVDS has a similar requirement, although that's probably only theoretical in nature: It's unlikely that we'll ever see an 8bpc high-res lvds panel (which is required to hit the 2 fdi lane limit). eDP is the only thing which could increase the pipe_bpp setting again, even when in the retry-loop. This could hit the WARN. Two reasons for not bothering: - On many eDP panels we'll get a black screen if the bpp settings don't match vbt. So failing the modeset is the right thing to do. But since that also means it's the only way to light up the panel, it should work. So we shouldn't be able to hit this WARN. - There are still opens around the eDP panel handling, and maybe we need additional tricks. Before that happens it's imo no use trying to be too clever. Worst case we just need to kill that WARN or maybe fail the compute config stage if the eDP connector can't get the bpp setting it wants. And since this can only happen with an fdi link in between and so for pch eDP panels it's rather unlikely to blow up, if ever. v2: Rebased on top of a bikeshed from Paulo. v3: Improve commit message around eDP handling with the stuff things with Imre. Reviewed-by:
Imre Deak <imre.deak@intel.com> Signed-off-by:
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Daniel Vetter authored
We need to multiply the hdmi port dotclock by 1.5x since it's not really a dotclock, but the 10/8 encoding bitclock divided by 10. Also add correct limit checks for the dotclock and reject modes which don't fit. HDMI 1.4 would allow more, but our hw doesn't support that unfortunately :( Somehow I suspect 12bpc hdmi output never really worked - we really need an i-g-t testcase to check all the different pixel modes and outputs. v2: Fixup the adjusted port clock handling - we need to make sure that the fdi link code still gets the real pixelclock. v3: g4x/vlv don't support 12bpc hdmi output so drop the bogus comment. Acked-by:
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Daniel Vetter authored
This allows us to use all 4 fdi lanes on fdi B when the cpu eDP is running on pipe C. Yay! v2: Encapsulate test into a little helper function, as suggested by Chris Wilson. Reviewed-by:
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Daniel Vetter authored
This nicely allows us to drop some hacks which have only been used to work around modeset failures due to lack of fdi lanes. v2: Implement proper checking for Haswell platforms - the fdi link to the LPT PCH has only 2 lanes. Note that we already filter out impossible modes in intel_crt_mode_valid. Unfortunately LPT does not support 6bpc on the fdi rx, so we can't pull clever tricks to squeeze in a few more modes. v2: Rebased on top of Ben Widawsky's num_pipes reorg. v3: Rebase on top of Ville's pipe debug output ocd rampage. v4: Fixup rebase fail spotted by Ville. v5: Fixup rebase fail spotted by Imre Deak. I suck. Cc: Imre Deak <imre.deak@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Daniel Vetter authored
Again in preparation to move the configuration checks into the pipe_config computation stage of the modeset sequence. Reviewed-by:
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Daniel Vetter authored
Now that it's split up, we can easily move it around and precompute the fdi lane configuration. Reviewed-by:
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Daniel Vetter authored
And also move the computed m_n values into the pipe_config. This is a prep step to move the fdi state computation completely into the prepare phase of the modeset sequence. Which will allow us to handle fdi link bw constraints in a better way. Reviewed-by:
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Daniel Vetter authored
v2: Introduce some nice #defines for the FDI lane width fields and put them to good use. Suggested by Ville. v3: Fixup the mask vs. shift copy&pasta fail Imre Deak spotted, and use the shift #define also in the mask. Cc: Imre Deak <imre.deak@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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