- 04 Jun, 2014 17 commits
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Daniel Vetter authored
After the split-out of crtc locks from the big mode_config.mutex there's still two major areas it protects: - Various connector probe states, like connector->status, EDID properties, probed mode lists and similar information. - The links from connector->encoder and encoder->crtc and other modeset-relevant connector state (e.g. properties which control the panel fitter). The later is used by modeset operations. But they don't really care about the former since it's allowed to e.g. enable a disconnected VGA output or with a mode not in the probed list. Thus far this hasn't been a problem, but for the atomic modeset conversion Rob Clark needs to convert all modeset relevant locks into w/w locks. This is required because the order of acquisition is determined by how userspace supplies the atomic modeset data. This has run into troubles in the detect path since the i915 load detect code needs _both_ protections offered by the mode_config.mutex: It updates probe state and it needs to change the modeset configuration to enable the temporary load detect pipe. The big deal here is that for the probe/detect users of this lock a plain mutex fits best, but for atomic modesets we really want a w/w mutex. To fix this lets split out a new connection_mutex lock for the modeset relevant parts. For simplicity I've decided to only add one additional lock for all connector/encoder links and modeset configuration states. We have piles of different modeset objects in addition to those (like bridges or panels), so adding per-object locks would be much more effort. Also, we're guaranteed (at least for now) to do a full modeset if we need to acquire this lock. Which means that fine-grained locking is fairly irrelevant compared to the amount of time the full modeset will take. I've done a full audit, and there's just a few things that justify special focus: - Locking in drm_sysfs.c is almost completely absent. We should sprinkle mode_config.connection_mutex over this file a bit, but since it already lacks mode_config.mutex this patch wont make the situation any worse. This is material for a follow-up patch. - omap has a omap_framebuffer_flush function which walks the connector->encoder->crtc links and is called from many contexts. Some look like they don't acquire mode_config.mutex, so this is already racy. Again fixing this is material for a separate patch. - The radeon hot_plug function to retrain DP links looks at connector->dpms. Currently this happens without any locking, so is already racy. I think radeon_hotplug_work_func should gain mutex_lock/unlock calls for the mode_config.connection_mutex. - Same applies to i915's intel_dp_hot_plug. But again, this is already racy. - i915 load_detect code needs to acquire this lock. Which means the w/w dance due to Rob's work will be nicely contained to _just_ this function. I've added fixme comments everywhere where it looks suspicious but in the sysfs code. After a quick irc discussion with Dave Airlie it sounds like the lack of locking in there is due to sysfs cleanup fun at module unload. v1: original (only compile tested) v2: missing mutex_init(), etc (from Rob Clark) v3: i915 needs more care in the conversion: - Protect the edp pp logic with the connection_mutex. - Use connection_mutex in the backlight code due to get_pipe_from_connector. - Use drm_modeset_lock_all in suspend/resume paths. - Update lock checks in the overlay code. Cc: Alex Deucher <alexdeucher@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
Rob Clark <robdclark@gmail.com>
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Rob Clark authored
I find myself making this change locally whenever debugging FB reference counting. Which seems a bit silly. Signed-off-by:
David Herrmann <dh.herrmann@gmail.com>
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Rob Clark authored
Like range, but values are signed. Signed-off-by:
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Rob Clark authored
An object property is an id (idr) for a drm mode object. This will allow a property to be used set/get a framebuffer, CRTC, etc. Signed-off-by:
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Rob Clark authored
If we continue to use bitmask for type, we will quickly run out of room to add new types. Split this up so existing part of bitmask range continues to function as before, but reserve a chunk of the remaining space for an integer type-id. Wrap this all up in some type-check helpers to keep the backwards-compat uglyness contained. Signed-off-by:
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Rob Clark authored
Add a few more useful helpers to find mode objects. Signed-off-by:
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Jani Nikula authored
No longer used or needed as the structs have a name field. Acked-by:
Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Jani Nikula authored
Generated using semantic patch: @@ expression E; @@ - drm_get_encoder_name(E) + E->name Acked-by:
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Jani Nikula authored
Generated using semantic patches: @@ expression E; @@ - drm_get_encoder_name(&E) + E.name @@ expression E; @@ - drm_get_encoder_name(E) + E->name v2: Turn drm_get_encoder_name(&E) into E.name instead of &(E)->name. Acked-by:
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Jani Nikula authored
Generated using semantic patch: @@ expression E; @@ - drm_get_connector_name(E) + E->name [airlied: regenerated] Acked-by:
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Jani Nikula authored
Generated using semantic patch: @@ expression E; @@ - drm_get_connector_name(E) + E->name [airlied: regenerated] Acked-by:
Alex Deucher <alexander.deucher@amd.com> Acked-by:
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Jani Nikula authored
Generated using semantic patches: @@ expression E; @@ - drm_get_connector_name(&E) + E.name @@ expression E; @@ - drm_get_connector_name(E) + E->name v2: Turn drm_get_connector_name(&E) into E.name instead of &(E)->name. Acked-by:
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Jani Nikula authored
Generated using semantic patches: @@ expression E; @@ - drm_get_connector_name(&E) + E.name @@ expression E; @@ - drm_get_connector_name(E) + E->name v2: Turn drm_get_connector_name(&E) into E.name instead of &(E)->name. Acked-by:
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Jani Nikula authored
Generated using semantic patch: @@ expression E; @@ - drm_get_connector_name(E) + E->name Acked-by:
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David Mansfield authored
spice-server and downstream code expect that the primary surface will always have surface_id = 0, while in reality, once allocated, the surface_id in qxl.ko is NEVER 0. In a dual head environment, all monitors render portions of the primary surface. However, when the monitor config events are generated and sent, the primary surface is only mapped to the correct identifier (i.e. 0) for the primary head (where crtc index is 0). The fix is to look at the "primary" flag in the bo and always use id 0, irrespective of which head is being configured. [airlied: qxl hw really needs to be fixed to scanout surfaces] Signed-off-by: -
Christian König authored
Instead of trying to flip inside the vblank period when the buffer is idle, offload blocking for idle to a kernel thread and program the flip directly into the hardware. v2: add error handling, fix EBUSY handling v3: add proper exclusive_lock handling v4: update crtc->primary->fb when the flip actually happens Signed-off-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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Dave Airlie authored
This reverts commit 1aab5514. Apply the fixed up version instead.
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- 03 Jun, 2014 1 commit
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
Highlights: - GPUVM opimtizations - HDMI audio cleanups - Deep color HDMI support - more bug fixes, cleanups * 'drm-next-3.16' of git://people.freedesktop.org/~agd5f/linux: (29 commits) drm/edid: Add quirk for Sony PVM-2541A to get 12 bpc hdmi deep color. drm/edid: Parse and handle HDMI deep color modes. drm/radeon: Limit hdmi deep color bit depth to 12 bpc. drm/radeon: Setup HDMI_CONTROL for hdmi deep color gcp's (v2) drm/radeon: fix pll setup for hdmi deep color (v7) drm/radeon: use hw cts/n values for deep color drm/radeon: only apply hdmi bpc pll flags when encoder mode is hdmi drm/radeon/atom: fix dithering on certain panels drm/radeon: optimize CIK VM handling v2 drm/radeon: optimize SI VM handling drm/radeon: add define for flags used in R600+ GTT drm/radeon: rework page flip handling v3 drm/radeon: separate vblank and pflip crtc handling drm/radeon: split page flip and pending callback drm/radeon: remove drm_vblank_get|put from pflip handling drm/radeon: remove (pre|post)_page_flip callbacks drm/radeon/dp: fix lane/clock setup for dp 1.2 capable devices drm/radeon: fix typo in radeon_connector_is_dp12_capable() radeon: Remove useless quirk for zx1/FireGL X1 combo introduced with fdo #7770 vgaswitcheroo: switch the mux to the igp on power down when runpm is enabled ...
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- 02 Jun, 2014 22 commits
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Mario Kleiner authored
The Sony PVM-2541A OLED high precision color display supports both 10 bpc and 12 bpc hdmi deep color input, but its edid does not signal any deep color support. Add a quirk to force it being treated as a 12 bpc panel. Signed-off-by:
Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by:
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Mario Kleiner authored
Check the HDMI cea block for deep color mode bits. If available, assign the highest supported bpc for a hdmi display, corresponding to the given deep color modes. Signed-off-by:
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Mario Kleiner authored
DCE-4/5/6 can't support more than 12 bpc deep color over hdmi, so clamp to 12 bpc when a hdmi deep color capable display is connected. This even makes sense on DCE-8+, which could do up to 16 bpc, as driving with more than 12 bpc would only waste video bandwidth as long as we don't support framebuffers with more than 12 bpc depth. On pre-DCE4 we clamp hdmi bit depth to 8 bpc, as those asics don't support hdmi deep color. Signed-off-by:
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Alex Deucher authored
Program HDMI_CONTROL to send general control packets for hdmi deep color mode signalling at every video frame if bpc > 8. This is only supported on evergreen / DCE-4 and later. v2: rebase Signed-off-by:
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Alex Deucher authored
Need to adjust the pll up for deep color modes. Additionally, the atom bpc defines were wrong in certain cases. v2: set the adjusted clock to the pll clock for hdmi deep color. This fixes display and audio issues with deep color as reported by Andy Furniss <adf.lists@gmail.com> v3: set crtc_clock as well v4: setcrtcinfo on the adjusted mode v5: just use the adjusted clock for setting the pll v6: only use the adjusted clock for hdmi v7: only DCE5 and DCE6 and bpc > 8 Signed-off-by: -
Alex Deucher authored
I'm not really sure how these should be calculated for deep color. The hw generated values seem to work. Signed-off-by: -
Alex Deucher authored
May fix display issues with non-HDMI displays. Signed-off-by: -
Alex Deucher authored
We need to specify the encoder mode as LVDS for eDP when using the Crtc_Source atom table in order to properly set up the FMT hardware. bug: https://bugs.freedesktop.org/show_bug.cgi?id=73911Signed-off-by:
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Christian König authored
Fill VM page tables from the GART page table if applicable. v2: fix copy&paste error Signed-off-by:
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Christian König authored
Fill VM page tables from the GART page table if applicable. Signed-off-by:
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Christian König authored
Signed-off-by:
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Christian König authored
Instead of trying to flip inside the vblank period when the buffer is idle, offload blocking for idle to a kernel thread and program the flip directly into the hardware. v2: add error handling, fix EBUSY handling v3: add proper exclusive_lock handling Signed-off-by:
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Christian König authored
Signed-off-by:
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Christian König authored
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Christian König authored
We activate the VBLANK irq manually anyway, so this is unnecessary. Signed-off-by:
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Christian König authored
They are doing the same on all generations anyway. Signed-off-by:
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Alex Deucher authored
Only DCE5+ asics support DP 1.2. Noticed by ArtForz on IRC. Signed-off-by: -
Alex Deucher authored
We were checking the ext clock rather than the display clock. Noticed by ArtForz on IRC. Signed-off-by: -
Émeric MASCHINO authored
Removes useless quirk a7f465f73363fce409870f62173d518b1bc02ae6 introduced with fdo #7770 as a failed attempt to minimize stability issues with hp zx1 chipset/ ATI FireGL X1 graphics adapter configuration (see http://marc.info/?l=linux-ia64&m=140077543819871&w=2 for details/reason) Signed-off-by:
Émeric MASCHINO <emeric.maschino@gmail.com> Signed-off-by:
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Alex Deucher authored
Avoids blank screens on muxed systems when runpm is active. bug: https://bugs.freedesktop.org/show_bug.cgi?id=75917Signed-off-by:
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Michele CURTI authored
Signed-off-by:
Michele Curti <michele.curti@gmail.com> Signed-off-by:
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Michele CURTI authored
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