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* | drm/i915: Pass intel_atomic_state to cdclk funcsVille Syrjälä2019-06-041-1/+1
| | | | | | | | | | | | | | | | | | Pass around intel_atomic_state rather than drm_atomic_state. This avoids some extra casts and annoing aliasing variables. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190517193132.8140-1-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
* | drm/i915: move more defs in intel_display_power.hDaniele Ceraolo Spurio2019-06-041-110/+0
| | | | | | | | | | | | | | | | | | | | | | | | Move over structures, enums and macros from intel_display.h and i915_drv.h to have all the display PM defines in the same header. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190531222409.9177-3-daniele.ceraolospurio@intel.com
* | drm/i915: extract intel_display_power.h/c from intel_runtime_pm.h/cDaniele Ceraolo Spurio2019-06-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep all the device-level PM management in intel_runtime_pm.h/c and move all the display specific bits into their own file. Also add the new header to Makefile.header-test. Apart from the giant code move, the only difference is with the intel_runtime_<get/put>_raw() functions, which are now exposed in the header. The _put() version is also not conditionally compiled anymore since it is ok to always pass the wakeref taken from the _get() to __intel_runtime_pm_put (it is -1 if tracking is disabled). Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Imre Deak <imre.deak@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190531222409.9177-2-daniele.ceraolospurio@intel.com
* | drm/i915: Report all objects with allocated pages to the shrinkerChris Wilson2019-05-311-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we try to report to the shrinker the precise number of objects (pages) that are available to be reaped at this moment. This requires searching all objects with allocated pages to see if they fulfill the search criteria, and this count is performed quite frequently. (The shrinker tries to free ~128 pages on each invocation, before which we count all the objects; counting takes longer than unbinding the objects!) If we take the pragmatic view that with sufficient desire, all objects are eventually reapable (they become inactive, or no longer used as framebuffer etc), we can simply return the count of pinned pages maintained during get_pages/put_pages rather than walk the lists every time. The downside is that we may (slightly) over-report the number of objects/pages we could shrink and so penalize ourselves by shrinking more than required. This is mitigated by keeping the order in which we shrink objects such that we avoid penalizing active and frequently used objects, and if memory is so tight that we need to free them we would need to anyway. v2: Only expose shrinkable objects to the shrinker; a small reduction in not considering stolen and foreign objects. v3: Restore the tracking from a "backup" copy from before the gem/ split Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190530203500.26272-2-chris@chris-wilson.co.uk
* | drm/i915: Track the purgeable objects on a separate eviction listChris Wilson2019-05-311-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the purgeable objects, I915_MADV_DONTNEED, are mixed in the normal bound/unbound lists. Every shrinker pass starts with an attempt to purge from this set of unneeded objects, which entails us doing a walk over both lists looking for any candidates. If there are none, and since we are shrinking we can reasonably assume that the lists are full!, this becomes a very slow futile walk. If we separate out the purgeable objects into own list, this search then becomes its own phase that is preferentially handled during shrinking. Instead the cost becomes that we then need to filter the purgeable list if we want to distinguish between bound and unbound objects. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.william.auld@gmail.com> Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190530203500.26272-1-chris@chris-wilson.co.uk
* | drm/i915: add force_probe module parameter to replace alpha_supportJani Nikula2019-05-311-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i915.alpha_support module parameter has caused some confusion along the way. Add new i915.force_probe parameter to specify PCI IDs of devices to probe, when the devices are recognized but not automatically probed by the driver. The name is intended to reflect what the parameter effectively does, avoiding any overloaded semantics of "alpha" and "support". The parameter supports "" to disable, "<pci-id>,[<pci-id>,...]" to enable force probe for one or more devices, and "*" to enable force probe for all known devices. Also add new CONFIG_DRM_I915_FORCE_PROBE config option to replace the DRM_I915_ALPHA_SUPPORT option. This defaults to "*" if DRM_I915_ALPHA_SUPPORT=y. Instead of replacing i915.alpha_support immediately, let the two coexist for a while, with a deprecation message, for a transition period. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190506134801.28751-1-jani.nikula@intel.com
* | drm/i915: Split off pci_driver.remove() tail to drm_driver.release()Janusz Krzysztofik2019-05-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to support driver hot unbind, some cleanup operations, now performed on PCI driver remove, must be called later, after all device file descriptors are closed. Split out those operations from the tail of pci_driver.remove() callback and put them into drm_driver.release() which is called as soon as all references to the driver are put. As a result, those cleanups will be now run on last drm_dev_put(), either still called from pci_driver.remove() if all device file descriptors are already closed, or on last drm_release() file operation. Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190530133105.30467-1-janusz.krzysztofik@linux.intel.com
* | drm/i915: Move GEM client throttling to its own fileChris Wilson2019-05-281-6/+0
| | | | | | | | | | | | | | | | | | Continuing the decluttering of i915_gem.c by moving the client self throttling into its own file. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-13-chris@chris-wilson.co.uk
* | drm/i915: Move GEM object waiting to its own fileChris Wilson2019-05-281-7/+0
| | | | | | | | | | | | | | | | | | Continuing the decluttering of i915_gem.c by moving the object wait decomposition into its own file. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-11-chris@chris-wilson.co.uk
* | drm/i915: Pull scatterlist utils out of i915_gem.hChris Wilson2019-05-281-110/+0
| | | | | | | | | | | | | | | | | | | | | | | | Out scatterlist utility routines can be pulled out of i915_gem.h for a bit more decluttering. v2: Push I915_GTT_PAGE_SIZE out of i915_scatterlist itself and into the caller. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-9-chris@chris-wilson.co.uk
* | drm/i915: Move more GEM objects under gem/Chris Wilson2019-05-281-1/+1
| | | | | | | | | | | | | | | | Continuing the theme of separating out the GEM clutter. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-8-chris@chris-wilson.co.uk
* | drm/i915: Move GEM domain management to its own fileChris Wilson2019-05-281-26/+0
| | | | | | | | | | | | | | | | | | Continuing the decluttering of i915_gem.c, that of the read/write domains, perhaps the biggest of GEM's follies? Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-7-chris@chris-wilson.co.uk
* | drm/i915: Move mmap and friends to its own fileChris Wilson2019-05-281-1/+0
| | | | | | | | | | | | | | | | | | Continuing the decluttering of i915_gem.c, now the turn of do_mmap and the faulthandlers Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-6-chris@chris-wilson.co.uk
* | drm/i915: Move phys objects to its own fileChris Wilson2019-05-281-2/+0
| | | | | | | | | | | | | | | | | | Continuing the decluttering of i915_gem.c, this time the legacy physical object. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-5-chris@chris-wilson.co.uk
* | drm/i915: Move shmem object setup to its own fileChris Wilson2019-05-281-10/+0
| | | | | | | | | | | | | | | | | | | | | | Split the plain old shmem object into its own file to start decluttering i915_gem.c v2: Lose the confusing, hysterical raisins, suffix of _gtt. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-4-chris@chris-wilson.co.uk
* | drm/i915: Move object->pages API to i915_gem_object.[ch]Chris Wilson2019-05-281-135/+6
| | | | | | | | | | | | | | | | | | | | Currently the code for manipulating the pages on an object is still residing in i915_gem.c, move it to i915_gem_object.c Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-3-chris@chris-wilson.co.uk
* | drm/i915: Pull GEM ioctls interface to its own fileChris Wilson2019-05-281-38/+0
| | | | | | | | | | | | | | | | Declutter i915_drv/gem.h by moving the ioctl API into its own header. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-2-chris@chris-wilson.co.uk
* | drm/i915: Split GEM object type definition to its own headerChris Wilson2019-05-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | For convenience in avoiding inline spaghetti, keep the type definition as a separate header. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-1-chris@chris-wilson.co.uk
* | drm/i915: Keep user GGTT alive for a minimum of 250msChris Wilson2019-05-281-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not allow runtime pm autosuspend to remove userspace GGTT mmaps too quickly. For example, igt sets the autosuspend delay to 0, and so we immediately attempt to perform runtime suspend upon releasing the wakeref. Unfortunately, that involves tearing down GGTT mmaps as they require an active device. Override the autosuspend for GGTT mmaps, by keeping the wakeref around for 250ms after populating the PTE for a fresh mmap. v2: Prefer refcount_t for its under/overflow error detection v3: Flush the user runtime autosuspend prior to system system. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190527115114.13448-1-chris@chris-wilson.co.uk
* | drm/i915: Make sure we have enough memory bandwidth on ICLVille Syrjälä2019-05-271-0/+8
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ICL has so many planes that it can easily exceed the maximum effective memory bandwidth of the system. We must therefore check that we don't exceed that limit. The algorithm is very magic number heavy and lacks sufficient explanation for now. We also have no sane way to query the memory clock and timings, so we must rely on a combination of raw readout from the memory controller and hardcoded assumptions. The memory controller values obviously change as the system jumps between the different SAGV points, so we try to stabilize it first by disabling SAGV for the duration of the readout. The utilized bandwidth is tracked via a device wide atomic private object. That is actually not robust because we can't afford to enforce strict global ordering between the pipes. Thus I think I'll need to change this to simply chop up the available bandwidth between all the active pipes. Each pipe can then do whatever it wants as long as it doesn't exceed its budget. That scheme will also require that we assume that any number of planes could be active at any time. TODO: make it robust and deal with all the open questions v2: Sleep longer after disabling SAGV v3: Poll for the dclk to get raised (seen it take 250ms!) If the system has 2133MT/s memory then we pointlessly wait one full second :( v4: Use the new pcode interface to get the qgv points rather that using hardcoded numbers v5: Move the pcode stuff into intel_bw.c (Matt) s/intel_sagv_info/intel_qgv_info/ Do the NV12/P010 as per spec for now (Matt) s/IS_ICELAKE/IS_GEN11/ v6: Ignore bandwidth limits if the pcode query fails Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Acked-by: Clint Taylor <Clinton.A.Taylor@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190524153614.32410-1-ville.syrjala@linux.intel.com
* drm/i915: Update DRIVER_DATE to 20190524Jani Nikula2019-05-241-2/+2
| | | | Signed-off-by: Jani Nikula <jani.nikula@intel.com>
* drm/i915: Update DRIVER_DATE to 20190523Jani Nikula2019-05-231-2/+2
| | | | Signed-off-by: Jani Nikula <jani.nikula@intel.com>
* drm/i915: Add a new "remapped" gtt_viewVille Syrjälä2019-05-201-0/+4
| | | | | | | | | | | | | | | | | | | | | | | To overcome display engine stride limits we'll want to remap the pages in the GTT. To that end we need a new gtt_view type which is just like the "rotated" type except not rotated. v2: Use intel_remapped_plane_info base type s/unused/unused_mbz/ (Chris) Separate BUILD_BUG_ON()s (Chris) Use I915_GTT_PAGE_SIZE (Chris) v3: Use i915_gem_object_get_dma_address() (Chris) Trim the sg (Tvrtko) v4: Actually trim this time. Limit the max length to one row of pages to keep things simple Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190509122159.24376-2-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
* drm/i915: Add support for asynchronous display power disablingImre Deak2019-05-141-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By disabling a power domain asynchronously we can restrict holding a reference on that power domain to the actual code sequence that requires the power to be on for the HW access it's doing, by also avoiding unneeded on-off-on togglings of the power domain (since the disabling happens with a delay). One benefit is potential power saving due to the following two reasons: 1. The fact that we will now be holding the reference only for the necessary duration by the end of the patchset. While simply not delaying the disabling has the same benefit, it has the problem that frequent on-off-on power switching has its own power cost (see the 2. point below) and the debug trace for power well on/off events will cause a lot of dmesg spam (see details about this further below). 2. Avoiding the power cost of freuqent on-off-on power switching. This requires us to find the optimal disabling delay based on the measured power cost of on->off and off->on switching of each power well vs. the power of keeping the given power well on. In this patchset I'm not providing this optimal delay for two reasons: a) I don't have the means yet to perform the measurement (with high enough signal-to-noise ratio, or with the help of an energy counter that takes switching into account). I'm currently looking for a way to measure this. b) Before reducing the disabling delay we need an alternative way for debug tracing powerwell on/off events. Simply avoiding/throttling the debug messages is not a solution, see further below. Note that even in the case where we can't measure any considerable power cost of frequent on-off switching of powerwells, it still would make sense to do the disabling asynchronously (with 0 delay) to avoid blocking on the disabling. On VLV I measured this disabling time overhead to be 1ms on average with a worst case of 4ms. In the case of the AUX power domains on ICL we would also need to keep the sequence where we hold the power reference short, the way it would be by the end of this patchset where we hold it only for the actual AUX transfer. Anything else would make the locking we need for ICL TypeC ports (whenever we hold a reference on any AUX power domain) rather problematic, adding for instance unnecessary lockdep dependencies to the required TypeC port lock. I chose the disabling delay to be 100msec for now to avoid the unneeded toggling (and so not to introduce dmesg spamming) in the DP MST sideband signaling code. We could optimize this delay later, once we have the means to measure the switching power cost (see above). Note that simply removing/throttling the debug tracing for power well on/off events is not a solution. We need to know the exact spots of these events and cannot rely only on incorrect register accesses caught (due to not holding a wakeref at the time of access). Incorrect powerwell enabling/disabling could lead to other problems, for instance we need to keep certain powerwells enabled for the duration of modesets and AUX transfers. v2: - Clarify the commit log parts about power cost measurement and the problem of simply removing/throttling debug tracing. (Chris) - Optimize out local wakeref vars at intel_runtime_pm_put_raw() and intel_display_power_put_async() call sites if CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n. (Chris) - Rebased on v2 of the wakeref w/o power-on guarantee patch. - Add missing docbook headers. v3: - Checkpatch spelling/missing-empty-line fix. v4: - Fix unintended local wakeref var optimization when using call-arguments with side-effects, by using inline funcs instead of macros. In this patch in particular this will fix the intel_display_power_grab_async_put_ref()->intel_runtime_pm_put_raw() call). No size change in practice (would be the same disregarding the corresponding change in intel_display_power_grab_async_put_ref()): $ size i915-macro.ko text data bss dec hex filename 2455190 105890 10272 2571352 273c58 i915-macro.ko $ size i915-inline.ko text data bss dec hex filename 2455195 105890 10272 2571357 273c5d i915-inline.ko Kudos to Stan for reporting the raw-wakeref WARNs this issue caused. His config has CONFIG_DRM_I915_DEBUG_RUNTIME_PM=n, which I didn't retest after v1, and we are also not testing this config in CI. Now tested both with CONFIG_DRM_I915_DEBUG_RUNTIME_PM=y/n on ICL, connecting both Chamelium and regular DP, HDMI sinks. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190513192533.12586-1-imre.deak@intel.com
* drm/i915: Reboot CI if forcewake failsChris Wilson2019-05-081-0/+11
| | | | | | | | | | | | | | | | If the HW fails to ack a change in forcewake status, the machine is as good as dead -- it may recover, but in reality it missed the mmio updates and is now in a very inconsistent state. If it happens, we can't trust the CI results (or at least the fails may be genuine but due to the HW being dead and not the actual test!) so reboot the machine (CI checks for a kernel taint in between each test and reboots if the machine is tainted). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190508115245.27790-1-chris@chris-wilson.co.uk
* drm/i915: Kill PCH_KBPVille Syrjälä2019-05-071-3/+1
| | | | | | | | | | | For us KBP is 100% identical to SPT. Kill the redundant enum value. Also bspec doesn't talk about KBP either, so this might avoid some confusion when cross checking the code against the spec. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190506152627.20283-1-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
* drm/i915: Remove delay for idle_workChris Wilson2019-05-071-1/+1
| | | | | | | | | | | | | | | The original intent for the delay before running the idle_work was to provide a hysteresis to avoid ping-ponging the device runtime-pm. Since then we have also pulled in some memory management and general device management for parking. But with the inversion of the wakeref handling, GEM is no longer responsible for the wakeref and by the time we call the idle_work, the device is asleep. It seems appropriate now to drop the delay and just run the worker immediately to flush the cached GEM state before sleeping. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190507121108.18377-2-chris@chris-wilson.co.uk
* drm/i915: extract intel_gmbus.h from i915_drv.h and rename intel_i2c.cJani Nikula2019-05-031-17/+0
| | | | | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. While at it, rename intel_i2c.c to intel_gmbus.c and the functions to intel_gmbus_*. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5834b8fbbfd4ac2e3d0159e69c87f6926066f537.1556809195.git.jani.nikula@intel.com
* drm/i915: move more generic utils to i915_utils.hJani Nikula2019-05-031-44/+0
| | | | | | | | Reduce clutter from i915_drv.h and intel_drv.h. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8c197872384fc35442b738c21ba0da9336e02a85.1556809195.git.jani.nikula@intel.com
* drm/i915: move i915_vgacntrl_reg() where neededJani Nikula2019-05-031-10/+0
| | | | | | | | Reduce clutter from i915_drv.h. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/d30a79d008b875f708f5acf7924f9ca8ab06b575.1556809195.git.jani.nikula@intel.com
* drm/i915: extract i915_debugfs.h from i915_drv.hJani Nikula2019-05-031-12/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/2843b028d65e118dc40316aa84bf620a93f6c67b.1556809195.git.jani.nikula@intel.com
* drm/i915: extract intel_acpi.h from i915_drv.hJani Nikula2019-05-031-9/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/9bc1317a67df0b9d019eca5b36f474b76a1cad26.1556809195.git.jani.nikula@intel.com
* drm/i915: extract intel_lpe_audio.h from i915_drv.hJani Nikula2019-05-031-8/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/9101a58b9f10bcf11332175e17b6e6e45f4ebd17.1556809195.git.jani.nikula@intel.com
* drm/i915: extract intel_dpio_phy.h from i915_drv.hJani Nikula2019-05-031-41/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/876a1671a84c6839bcafdf276cf9c4e1da6c631c.1556809195.git.jani.nikula@intel.com
* drm/i915/csr: move CSR version macros to intel_csr.hJani Nikula2019-05-031-4/+0
| | | | | | | | Reduce clutter from i915_drv.h. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8222df3f559b056387b5c7e6e04a878cbf8b4e2e.1556809195.git.jani.nikula@intel.com
* drm/i915: Complete both freed-object passes before draining the workqueueChris Wilson2019-05-011-3/+3
| | | | | | | | | | | | | | | | | | | | The workqueue code complains viciously if we try to queue more work onto the queue while attampting to drain it. As we asynchronously free objects and defer their enqueuing with RCU, it is quite tricky to quiesce the system before attempting to drain the workqueue. Yet drain we must to ensure that the worker is idle before unloading the module. Give the freed object drain 3 whole passes with multiple rcu_barrier() to give the defer freeing of several levels each protected by RCU and needing a grace period before its parent can be freed, ultimately resulting in a GEM object being freed after another RCU period. A consequence is that it will make module unload even slower. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110550 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190501135753.8711-1-chris@chris-wilson.co.uk
* drm/i915: Move the engine->destroy() vfunc onto the engineChris Wilson2019-05-011-6/+0
| | | | | | | | | | | | | | | | Make the engine responsible for cleaning itself up! This removes the i915->gt.cleanup vfunc that has been annoying the casual reader and myself for the last several years, and helps keep a future patch to add more cleanup tidy. v2: Assert that engine->destroy is set after the backend starts allocating its own state. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190501103204.18632-1-chris@chris-wilson.co.uk
* drm/i915: extract intel_combo_phy.h from i915_drv.hJani Nikula2019-04-301-6/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/6aea17072684dec0b04b6831c0c0e5a134edf87e.1556540890.git.jani.nikula@intel.com
* drm/i915: move some leftovers to intel_pm.h from i915_drv.hJani Nikula2019-04-301-13/+0
| | | | | | | | | Commit 696173b064c6 ("drm/i915: extract intel_pm.h from intel_drv.h") missed the declarations in i915_drv.h. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/770f5f1c2dd99e4d6a314b70184e71b928a6d362.1556540890.git.jani.nikula@intel.com
* drm/i915: extract intel_runtime_pm.h from intel_drv.hJani Nikula2019-04-301-0/+1
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87904259868782c1ad664d852b27a50c1597cfaa.1556540890.git.jani.nikula@intel.com
* drm/i915: extract intel_vdsc.h from intel_drv.h and i915_drv.hJani Nikula2019-04-301-3/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/76d2719b462004ec6f6f5c302ee5d3876357c599.1556540890.git.jani.nikula@intel.com
* drm/i915: extract intel_overlay.h from intel_drv.h and i915_drv.hJani Nikula2019-04-301-6/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/2e4fb1e67ed38870df3040bb0a1b1a58fd90cc86.1556540890.git.jani.nikula@intel.com
* drm/i915: extract intel_bios.h functions from i915_drv.hJani Nikula2019-04-301-16/+0
| | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time i915_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the header remains self-contained, and do so with minimal further includes, using forward declarations as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/cf9b17d56489e15d82356575037432ad04712475.1556540890.git.jani.nikula@intel.com
* drm/i915: extract intel_hotplug.h from intel_drv.h and i915_drv.hJani Nikula2019-04-301-11/+0
| | | | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. v2: fix sparse warnings on undeclared global functions Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190429125011.10876-1-jani.nikula@intel.com
* drm/i915: extract i915_irq.h from intel_drv.h and i915_drv.hJani Nikula2019-04-301-62/+0
| | | | | | | | | | | | | | | | | | It used to be handy that we only had a couple of headers, but over time intel_drv.h has become unwieldy. Extract declarations to a separate header file corresponding to the implementation module, clarifying the modularity of the driver. Ensure the new header is self-contained, and do so with minimal further includes, using forward declarations as needed. Include the new header only where needed, and sort the modified include directives while at it and as needed. No functional changes. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/64e46278dc8dccc9c548ef453cb2ceece5367bb2.1556540890.git.jani.nikula@intel.com
* drm/i915: Move sandybride pcode access to intel_sideband.cChris Wilson2019-04-261-10/+0
| | | | | | | | sandybride_pcode is another sideband, so move it to their new home. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-8-chris@chris-wilson.co.uk
* drm/i915: Separate sideband declarations to intel_sideband.hChris Wilson2019-04-261-120/+0
| | | | | | | | Split the sideback declarations out of the ginormous i915_drv.h Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-5-chris@chris-wilson.co.uk
* drm/i915: Replace pcu_lock with sb_lockChris Wilson2019-04-261-8/+2
| | | | | | | | | | | | | | | We now have two locks for sideband access. The general one covering sideband access across all generation, sb_lock, and a specific one covering sideband access via the punit on vlv/chv. After lifting the sb_lock around the punit into the callers, the pcu_lock is now redudant and can be separated from its other use to regulate RPS (essentially giving RPS a lock all of its own). v2: Extract a couple of minor bug fixes. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-4-chris@chris-wilson.co.uk
* drm/i915: Lift acquiring the vlv punit magic to a common sb-getChris Wilson2019-04-261-15/+109
| | | | | | | | | | | | | | | As we now employ a very heavy pm_qos around the punit access, we want to minimise the number of synchronous requests by performing one for the whole punit sequence rather than around individual accesses. The sideband lock is used for this, so push the pm_qos into the sideband lock acquisition and release, moving it from the lowlevel punit rw routine to the callers. In the first step, we move the punit magic into the common sideband lock so that we can acquire a bunch of ports simultaneously, and if need be extend the workaround protection later. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-2-chris@chris-wilson.co.uk
* drm/i915: Disable preemption and sleeping while using the punit sidebandChris Wilson2019-04-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While we talk to the punit over its sideband, we need to prevent the cpu from sleeping in order to prevent a potential machine hang. Note that by itself, it appears that pm_qos_update_request (via intel_idle) doesn't provide a sufficient barrier to ensure that all core are indeed awake (out of Cstate) and that the package is awake. To do so, we need to supplement the pm_qos with a manual ping on_each_cpu. v2: Restrict the heavy-weight wakeup to just the ISOF_PORT_PUNIT, there is insufficient evidence to implicate a wider problem atm. Similarly, restrict the w/a to Valleyview, as Cherryview doesn't have an angry cadre of users. The working theory, courtesy of Ville and Hans, is the issue lies within the power delivery and so is likely to be unit and board specific and occurs when both the unit/fw require extra power at the same time as the cpu package is changing its own power state. References: https://bugzilla.kernel.org/show_bug.cgi?id=109051 References: https://bugs.freedesktop.org/show_bug.cgi?id=102657 References: https://bugzilla.kernel.org/show_bug.cgi?id=195255 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190426081725.31217-1-chris@chris-wilson.co.uk
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