- 17 Dec, 2015 9 commits
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Imre Deak authored
With this change we have the corresponding wake lock checks in both the rpm get and put functions. v2-v3: - unchanged v4: - keep the corresponding check in the get helper (Chris) v5: - add a note to the commit message that with this change we have the checks both in the rpm get and put functions (Joonas) Signed-off-by:
Imre Deak <imre.deak@intel.com> Reviewed-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1450203038-5150-9-git-send-email-imre.deak@intel.com
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Imre Deak authored
Atm, we assert that the device is not suspended until the point when the device is truly put to a suspended state. This is fine, but we can catch more problems if we check that RPM refcount is non-zero. After that one drops to zero we shouldn't access the device any more, even if the actual device suspend may be delayed. Change assert_rpm_wakelock_held() accordingly to check for a non-zero RPM refcount in addition to the current device-not-suspended check. For the new asserts to work we need to annotate every place explicitly in the code where we expect that the device is powered. The places where we only assume this, but may not hold an RPM reference: - driver load We assume the device to be powered until we enable RPM. Make this explicit by taking an RPM reference around the load function. - system and runtime sudpend/resume handlers These handlers are called when the RPM reference becomes 0 and know the exact point after which the device can get powered off. Disable the RPM-reference-held check for their duration. - the IRQ, hangcheck and RPS work handlers These handlers are flushed in the system/runtime suspend handler before the device is powered off, so it's guaranteed that they won't run while the device is powered off even though they don't hold any RPM reference. Disable the RPM-reference-held check for their duration. In all these cases we still check that the device is not suspended. These explicit annotations also have the positive side effect of documenting our assumptions better. This caught additional WARNs from the atomic modeset path, those should be fixed separately. v2: - remove the redundant HAS_RUNTIME_PM check (moved to patch 1) (Ville) v3: - use a new dedicated RPM wakelock refcount to also catch cases where our own RPM get/put functions were not called (Chris) - assert also that the new RPM wakelock refcount is 0 in the RPM suspend handler (Chris) - change the assert error message to be more meaningful (Chris) - prevent false assert errors and check that the RPM wakelock is 0 in the RPM resume handler too - prevent false assert errors in the hangcheck work too - add a device not suspended assert check to the hangcheck work v4: - rename disable/enable_rpm_asserts to disable/enable_rpm_wakeref_asserts and wakelock_count to wakeref_count - disable the wakeref asserts in the IRQ handlers and RPS work too - update/clarify commit message v5: - mark places we plan to change to use proper RPM refcounting with separate DISABLE/ENABLE_RPM_WAKEREF_ASSERTS aliases (Chris) Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1450227139-13471-1-git-send-email-imre.deak@intel.com
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Imre Deak authored
Signed-off-by:
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Imre Deak authored
As a preparation for follow-up patches add a new helper that checks whether we hold an RPM reference, since this is what we want most of the cases. Atm this helper will only check for the HW suspended state, a follow-up patch will do the actual change to check the refcount instead. One exception is the forcewake release timer function, where it's guaranteed that the HW is on even though the RPM refcount drops to zero. This guarantee is provided by flushing the timer in the runtime suspend handler. So leave the assert_device_not_suspended check in place there. Also rename assert_device_suspended for consistency and export these helpers as a preparation for the follow-up patches. No functional change. v3: - change the assert warning message to be more meaningful (Chris) Signed-off-by:
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Imre Deak authored
We don't really need to check this flag in the get/put/assert helpers, as on platforms without RPM support we won't ever enable RPM. That means pm.suspend will be always false and the assert will be always true. Do this to simplify the code and to let us extend the RPM asserts to all platforms for a better coverage. Motivated by Ville. v2-v3: - unchanged v4: - remove the HAS_RUNTIME_PM check from intel_runtime_pm_enable() too made possible by the previous two patches v5: - rebased on the previous new patch in the series that keeps HAS_RUNTIME_PM() in intel_runtime_pm_enable() with a permanent reference taken there Signed-off-by:
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Imre Deak authored
Currently we disable RPM functionality on platforms that doesn't support this by not putting/getting the RPM reference we receive from the RPM core during driver loading/unloading respectively. This is somewhat obscure, so make it more explicit by keeping a reference dedicated for this particular purpose whenever the driver is loaded. This makes it possible to remove the HAS_RUNTIME_PM() special casing from every other places in the next patch. v2: - fix intel_runtime_pm_get vs. intel_runtime_pm_put in intel_power_domains_fini() v3: - take only a low level RPM reference so the ref tracking asserts continue to work (Ville) - update the commit message - move the patch earlier for bisectability Suggested-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Imre Deak authored
We can make the RPM dependency on RC6 explcit in the code by taking an actual RPM reference, instead of avoiding to drop the initial one. This will also enable us to remove the HAS_RUNTIME_PM special casing from more places in the next patch. v2: - fixed typo in commit message (Joonas) Signed-off-by:
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Imre Deak authored
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Jani Nikula authored
The RVDA and RVDS (raw VBT data address and size) fields of the ASLE mailbox may specify an alternate location for VBT instead of mailbox #4. Use the alternate location if available and valid, falling back to mailbox #4 otherwise. v2: Update debug logging (Ville) Reviewed-by:
Mika Kahola <mika.kahola@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1450178280-28020-1-git-send-email-jani.nikula@intel.com
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- 16 Dec, 2015 16 commits
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Ville Syrjälä authored
I broke AVI/HDMI/SPD infoframes on HSW+ with the register type safety changes. We were supposed to check that the infoframe data register is valid before writing the infoframe data, but the check ended up inverted, and so in practice we never wrote or enabled these infoframes. We were still sending out the GCP infoframe when the sink was deep-color capable. That and the fact that we use a single bool to track our infoframe state meant that the state checker only caught this when a HDMI sink that doesn't do deep-color was used. We really need to fix our infoframe state checking to be much more anal. But in the meantime let's just fix the regression. In fact let's just throw out the register validity check and convert some of the "unknown info frame type" debug messages into MISSING_CASE(). So far we support the same set of infoframe types on all platforms, so the silent debug messages make no sense. Cc: drm-intel-fixes@lists.freedesktop.org Fixes: f0f59a00 ("drm/i915: Type safe register read/write") Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> (irc) Tested-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> (irc) Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Jani Nikula authored
Slightly cleaner with early exit. Reviewed-by:
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Jani Nikula authored
dev_priv is the new black. Or something. Reviewed-by:
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Jani Nikula authored
Specify the maximum number of letters to print from the potentially unterminated buffer, not the minimum. While at it, use sizeof instead of a magic number. Reviewed-by:
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Jani Nikula authored
The intel_bios.h header doesn't even need it, but other headers included from i915_drv.h do. Let's untangle the mess a bit. Reviewed-by:
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Jani Nikula authored
Use the for_each_intel_* macros for iterating intel_encoder, intel_connector, and intel_crtc. No functional changes. Reviewed-by:
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Jani Nikula authored
In the future the VBT might not be in mailbox #4 of the ACPI OpRegion, thus unavailable in i915_opregion, so add a separate file for the VBT. v2: Drop the locking as unneeded (Chris) v3: Rebase Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
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Jani Nikula authored
Hasn't been necessary since commit 115719fc Author: Williams, Dan J <dan.j.williams@intel.com> Date: Mon Oct 12 21:12:57 2015 +0000 i915: switch from acpi_os_ioremap to memremap Reviewed-by:
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Jani Nikula authored
Because we can. It's not to be touched so tell the compiler too. Reviewed-by:
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Jani Nikula authored
The VBT in OpRegion should fit in mailbox #4. Reviewed-by:
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Jani Nikula authored
Make the validation function a boolean operating on a buffer of given size, removing the extra pointer dances. Move the OpRegion based VBT validation to intel_opregion_setup(), only initializing opregion->vbt if it's valid. v2: move logging about valid VBT to opregion setup too (Ville) Reviewed-by:
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Jani Nikula authored
While at it, move the declaration to where everything else is declared. Reviewed-by:
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Jani Nikula authored
The decision about which source will be used for VBT is done in intel_parse_bios(), not in the VBT validation function. Make the VBT validation function strictly about validation, and move the debug logging to where it logically belongs. Also split the logging about where the valid VBT was found and what the signature is. This will make even more sense in the future when the validation for ACPI OpRegion based VBT takes place at OpRegion setup time. v2: Split logging about VBT signature and BDB version. Reviewed-by:
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Jani Nikula authored
This will simplify further work. Reviewed-by:
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Jani Nikula authored
Check the quirk in intel_opregion_setup(), and don't initialize opregion->vbt at all if the quirk says it's not present, hiding the quirk from the rest of the driver. Reviewed-by:
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Deepak M authored
Mailbox 5 is BIOS to Driver Notification mailbox is intended to support BIOS to Driver event notification or data storage for BIOS to Driver data synchronization purpose. Mailbox 5 is the extension of mailbox 3. v4 by Jani: - don't add asle_ext to dev_priv as it's unused - use u8 for bddc and rsvd fields in asle ext struct - add BUILD_BUG_ON the asle ext struct size - debug logging for asle ext present Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Deepak M <m.deepak@intel.com> Reviewed-by:
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- 14 Dec, 2015 2 commits
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Ville Syrjälä authored
The cursor code tries to treat base==0 to mean disabled. That fails when the cursor bo gets bound at ggtt offset 0, and the user is left looking at an invisible cursor. We lose the disabled->disabled optimization, but that seems like something better handled at a slightly higher level. Cc: drm-intel-fixes@lists.freedesktop.org Cc: Takashi Iwai <tiwai@suse.de> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
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Ville Syrjälä authored
The vma may have been rebound between the last time the cursor was enabled and now, so skipping the cursor gtt offset deduction is not safe unless we would also reset cursor_bo to NULL when disabling the cursor. Just thow cursor_bo to the bin instead since it's lost all other uses thanks to universal plane support. Chris pointed out that cursor updates are currently too slow via universal planes that micro optimizations like these wouldn't even help. v2: Add a note about futility of micro optimizations (Chris) Cc: drm-intel-fixes@lists.freedesktop.org References: http://lists.freedesktop.org/archives/intel-gfx/2015-December/082976.html Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Takashi Iwai <tiwai@suse.de> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
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- 12 Dec, 2015 1 commit
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Rodrigo Vivi authored
This bit is also reserved on Skylake. Actually the only platform that supports this is Haswell, so let's fix this logic and apply this link entry time only for the platform that supports it, i.e. Haswell. This also changes the style to let more clear platform differences outside the reg write. We would probably catch this case sooner if separated, or not... Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by:
Paulo Zanoni <paulo.r.zanoni@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1449880291-21388-1-git-send-email-rodrigo.vivi@intel.com
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- 11 Dec, 2015 6 commits
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Daniel Vetter authored
Add get_eld audio component for i915/HD-audio Currently, the HDMI/DP audio status and ELD are notified and obtained via the hardware-level communication over HD-audio unsolicited event and verbs although the graphics driver holds the exactly same information. As we already have a notification via audio component, this is another step forward; namely, the audio driver may fetch directly the audio status and ELD via the new component op. Signed-off-by:Daniel Vetter <daniel.vetter@intel.com>
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Dave Gordon authored
When creating a new (pageable) GEM object and filling it with data, we must mark it as 'dirty', i.e. backing store is out-of-date w.r.t. the newly-written content. This ensures that if the object is evicted under memory pressure, its pages in the pagecache will be written to backing store rather than discarded. Based on an original version by Alex Dai. Signed-off-by:
Alex Dai <yu.dai@intel.com> Signed-off-by:
Dave Gordon <david.s.gordon@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1449773486-30822-3-git-send-email-david.s.gordon@intel.comReviewed-by:
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Dave Gordon authored
In various places, a single page of a (regular) GEM object is mapped into CPU address space and updated. In each such case, either the page or the the object should be marked dirty, to ensure that the modifications are not discarded if the object is evicted under memory pressure. The typical sequence is: va = kmap_atomic(i915_gem_object_get_page(obj, pageno)); *(va+offset) = ... kunmap_atomic(va); Here we introduce i915_gem_object_get_dirty_page(), which performs the same operation as i915_gem_object_get_page() but with the side-effect of marking the returned page dirty in the pagecache. This will ensure that if the object is subsequently evicted (due to memory pressure), the changes are written to backing store rather than discarded. Note that it works only for regular (shmfs-backed) GEM objects, but (at least for now) those are the only ones that are updated in this way -- the objects in question are contexts and batchbuffers, which are always shmfs-backed. Separate patches deal with the cases where whole objects are (or may be) dirtied. v3: Mark two more pages dirty in the page-boundary-crossing cases of the execbuffer relocation code [Chris Wilson] Signed-off-by: -
Tomas Elf authored
When clearing an execlist queue, instead of traversing it and unreferencing all requests while holding the spinlock (which might lead to thread sleeping with IRQs are turned off - bad news!), just move all requests to the retire request list while holding spinlock and then drop spinlock and invoke the execlists request retirement path, which already deals with the intricacies of purging/dereferencing execlist queue requests. This patch can be considered v3 of: commit b96db8b81c54ef30485ddb5992d63305d86ea8d3 Author: Tomas Elf <tomas.elf@intel.com> drm/i915: Grab execlist spinlock to avoid post-reset concurrency issues This patch assumes v2 of the above patch is part of the baseline, reverts v2 and adds changes on top to turn it into v3. Signed-off-by:
Tomas Elf <tomas.elf@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1445619757-19822-1-git-send-email-tomas.elf@intel.comReviewed-by:
Thomas Daniel <thomas.daniel@intel.com> Reviewed-by:
Dave Gordon <dave.gordon@intel.com> Signed-off-by:
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Deepak M authored
Pipe is assigned based on the port, but it should be based on current crtc. Correcting the same in this patch. v2: Use macro BXT_PIPE_SELECT(pipe) (Daniel) Signed-off-by:
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Deepak M authored
To be used on systems where the VBT does not fit into the normal VBT mailbox. v3: rebase Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:
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- 10 Dec, 2015 6 commits
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Rodrigo Vivi authored
Mainly aux communications on sink_crc were failing a lot randomly on recent platforms. The first solution was to try to use intel_dp_dpcd_read_wake, but then it was suggested to move retries to drm level. Since drm level was already taking care of retries and didn't want to through random retries on that level the second solution was to put the retries at aux_transfer layer what was nacked. So I realized we had so many retries in different places and started to organize that a bit. During this organization I noticed that we weren't handing at all the case were the message size was zeroed. And this was exactly the case that was affecting sink_crc. Also we weren't respect BSPec who says this size message = 0 or > 20 are forbidden. It is a fact that we still have no clue why we are getting this forbidden value there. But anyway we need to handle that for now so we return -EBUSY and drm level takes care of the retries that are already in place. v2: Print debug messsage when this case is reached as suggested by Jani. v3: This patch is crucial to make PSR test cases reliably working on SKL. So split this patch from the aux re-org series and add a FIXME as a promisse to continue that effort besides reminding to remove the sleep when that is merged. v4: Use a bigger usleep range so kernel doesn't need to be interrupted on a exact time, as suggested by Paulo. But anyway we should discuss the better time ranges on the EBUSY handle re-org at drm level since this one here is temporary. v5: s/1000,1500/1000, 1500/ (by Paulo). Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: -
Dave Gordon authored
Based on Chris Wilson's patch from 6 months ago, rebased and adapted. The current implementation of intel_ring_initialized() is too heavyweight; it's a non-inlined function that chases several levels of pointers. This wouldn't matter too much if it were rarely called, but it's used inside the iterator test of for_each_ring() and is therefore called quite frequently. So let's make it simple and inline ... The idea here is to use ring->dev as an indicator showing which engines have been initialised and are therefore to be included in iterations that use for_each_ring(). This allows us to avoid multiple memory references and a (non-inlined) function call on each iteration of each such loop. Fixes regression from commit 48d82387 Author: Oscar Mateo <oscar.mateo@intel.com> Date: Thu Jul 24 17:04:23 2014 +0100 drm/i915/bdw: Generic logical ring init and cleanup Signed-off-by:
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Takashi Iwai authored
This patch adds a reverse mapping from a digital port number to intel_encoder object containing the corresponding intel_digital_port. It simplifies the query of the encoder a lot. Note that, even if it's a valid digital port, the dig_port_map[] might point still to NULL -- usually it implies a DP MST port. Due to this fact, the NULL check in each place has no WARN_ON() and just skips the port. Once when the situation changes in future, we might introduce WARN_ON() for a more strict check. Signed-off-by:Takashi Iwai <tiwai@suse.de>
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Takashi Iwai authored
Implement a new i915_audio_component_ops, get_eld(). It's called by the audio driver to fetch the current audio status and ELD of the given HDMI/DP port. It returns the size of expected ELD bytes if it's valid, zero if no valid ELD is found, or a negative error code. The current state of audio on/off is stored in the given pointer, too. Note that the returned size isn't limited to the given max bytes. If the size is greater than the max bytes, it means that only a part of ELD has been copied back. For achieving this implementation, a new field audio_connector is added to struct intel_digital_port. It points to the connector assigned to the given digital port. It's set/reset at each audio enable/disable call in intel_audio.c, and protected with av_mutex. Reviewed-by:
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Maarten Lankhorst authored
When disable_noatomic is called plane_mask is not correct yet, and plane_state->visible = true is left as true after disabling the primary plane. Other planes are already disabled as part of crtc sanitization, only the primary is left active. But the plane_mask is not updated here. It gets updated during fb takeover in modeset_gem_init, or set to the new value on resume. This means that to disable the primary plane 1 << drm_plane_index(primary) needs to be used. Afterwards because the crtc is no longer active it's forbidden to keep plane_state->visible set, or a WARN_ON in intel_plane_atomic_calc_changes triggers. There are other code points that rely on accurate plane_state->visible too, so make sure the bool is cleared. The other planes are already disabled in intel_sanitize_crtc, so they don't have to be handled here. Cc: stable@vger.kernel.org #v4.3, v4.2? Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92655Tested-by:
Tomas Mezzadra <tmezzadra@gmail.com> Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by:
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Wayne Boyer authored
Do some further clean up based on the initial review of drm/i915: Separate cherryview from valleyview. In this case remove the BUG_ON call in vlv_enable_pll(). v2: Also remove the BUG_ON call in chv_enable_pll(). (Ville) Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
Wayne Boyer <wayne.boyer@intel.com> Signed-off-by:
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