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2016-04-22drm/mode: move framebuffer reference into object.Dave Airlie
This is the initial code to add references to some mode objects. In the future we need to start reference counting connectors so firstly I want to reorganise the code so the framebuffer ref counting uses the same paths. This patch shouldn't change any functionality, just moves the kref. [airlied: move kerneldoc as well] Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22drm/mode: introduce wrapper to read framebuffer refcount.Dave Airlie
Avoids drivers knowing where the kref is stored. [airlied: add kerneldoc] Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22drm/modes: drop __drm_framebuffer_unregister.Dave Airlie
Just use the generic function. The main side effect of this is that the fb->base.id is now protected by the idr mutex as well. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22drm/mode: move framebuffer_free up above framebuffer_initDave Airlie
A later patch will use it in framebuffer_init, and I want to keep the diff cleaner. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22drm/mode: rework drm_mode_object_put to drm_mode_object_unregister.Dave Airlie
This changes the code to handle being called multiple times without side effects. The new names seems more suitable for what it does. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-04-22Merge branch 'drm-atmel-hlcdc-devel' of ↵Dave Airlie
https://github.com/bbrezillon/linux-at91 into drm-next This PR contains several improvement and cleanup patches for the atmel-hlcdc driver to be applied on drm-next (targeting 4.7). * 'drm-atmel-hlcdc-devel' of https://github.com/bbrezillon/linux-at91: drm: atmel-hlcdc: route DMA accesses through AHB interfaces drm: atmel-hlcdc: check display mode validity in crtc->mode_fixup() drm: atmel-hlcdc: rework the output code to support drm bridges drm: atmel-hlcdc: move output mode selection in CRTC implementation drm: atmel-hlcdc: support extended timing ranges on sama5d4 and sama5d2 drm: atmel-hlcdc: remove leftovers from atomic mode setting migration drm: atmel-hlcdc: fix connector and encoder types drm: atmel-hlcdc: support asynchronous atomic commit operations drm: atmel-hlcdc: add a ->cleanup_fb() operation
2016-04-22Merge tag 'drm-intel-next-2016-04-11' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-next - make modeset hw state checker atomic aware (Maarten) - close races in gpu stuck detection/seqno reading (Chris) - tons&tons of small improvements from Chris Wilson all over the gem code - more dsi/bxt work from Ramalingam&Jani - macro polish from Joonas - guc fw loading fixes (Arun&Dave) - vmap notifier (acked by Andrew) + i915 support by Chris Wilson - create bottom half for execlist irq processing (Chris Wilson) - vlv/chv pll cleanup (Ville) - rework DP detection, especially sink detection (Shubhangi Shrivastava) - make color manager support fully atomic (Maarten) - avoid livelock on chv in execlist irq handler (Chris) * tag 'drm-intel-next-2016-04-11' of git://anongit.freedesktop.org/drm-intel: (82 commits) drm/i915: Update DRIVER_DATE to 20160411 drm/i915: Avoid allocating a vmap arena for a single page drm,i915: Introduce drm_malloc_gfp() drm/i915/shrinker: Restrict vmap purge to objects with vmaps drm/i915: Refactor duplicate object vmap functions drm/i915: Consolidate common error handling in intel_pin_and_map_ringbuffer_obj drm/i915/dmabuf: Tighten struct_mutex for unmap_dma_buf drm/i915: implement WaClearTdlStateAckDirtyBits drm/i915/bxt: Reversed polarity of PORT_PLL_REF_SEL bit drm/i915: Rename hw state checker to hw state verifier. drm/i915: Move modeset state verifier calls. drm/i915: Make modeset state verifier take crtc as argument. drm/i915: Replace manual barrier() with READ_ONCE() in HWS accessor drm/i915: Use simplest form for flushing the single cacheline in the HWS drm/i915: Harden detection of missed interrupts drm/i915: Separate out the seqno-barrier from engine->get_seqno drm/i915: Remove forcewake dance from seqno/irq barrier on legacy gen6+ drm/i915: Fixup the free space logic in ring_prepare drm/i915: Simplify check for idleness in hangcheck drm/i915: Apply a mb between emitting the request and hangcheck ...
2016-04-22Merge tag 'v4.6-rc3' into drm-nextDave Airlie
Backmerge 4.6-rc3 for i915. Linux 4.6-rc3
2016-04-22Merge tag 'topic/drm-misc-2016-04-21' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-next misc pull req all over. Biggest thing is the drm_connector_(un)register_all cleanup from Alexey for drivers without the load/unload midlayer hooks. I.e. all the new ones, and a bunch of the pending new atomic drivers depend upon this. Or at least I asked them to rebase ;-) * tag 'topic/drm-misc-2016-04-21' of git://anongit.freedesktop.org/drm-intel: drm: Make drm.debug parameter description more helpful drm: Remove warning from drm_connector_unregister_all() drm: probe_helper: Hide ugly ifdef drm: rcar-du: Use generic drm_connector_register_all() helper drm: atmel_hldc: Use generic drm_connector_register_all() helper drm: Introduce drm_connector_register_all() helper drm: fix lut value extraction function drm/atomic-helper: Print an error if vblank wait times out drm/dp/mst: Restore primary hub guid on resume drm: Release driver references to handle before making it available again drm/i915/dp/mst: Add source port info to debugfs output drm/dp/mst: Enhance DP MST debugfs output drm/edid: Add drm_edid_get_monitor_name() include/drm: Reword debug categories comment. drm/crtc_helper: Reset empty plane state in drm_helper_crtc_mode_set_base() drm/virtio: Drop dummy gamma table support drm/bochs: Drop fake gamma support drm/core: Fix ordering in drm_mode_config_cleanup.
2016-04-22Merge tag 'topic/struct_mutex-2016-04-21' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-next struct_mutex cleanups and error paths fixes. Unfortunately I didn't manage to get acks from everyone, but this stuff has been hanging out for months now and imo simple enough to just land the remaining few patches. But separate pull request so that you can take a look yourself. * tag 'topic/struct_mutex-2016-04-21' of git://anongit.freedesktop.org/drm-intel: drm/vma_manage: Drop has_offset drm/vgem: Drop dev->struct_mutex drm/vgem: Move get_pages to gem_create drm/vgem: Simplify dumb_map drm/exynos: drop struct_mutex from fbdev setup drm/exynos: drop struct_mutex from exynos_drm_gem_get_ioctl drm/exynos: drop struct_mutex from exynos_gem_map_sgt_with_dma drm/exynos: Drop dev->struct_mutex from mmap offset function drm/nouveau: Drop dev->struct_mutex from fbdev init drm/qxl: Use unlocked gem unreferencing drm/omapdrm: Use unlocked gem unreferencing drm/nouveau: Use unlocked gem unreferencing
2016-04-21drm: Make drm.debug parameter description more helpfulEzequiel Garcia
Let's be user-friendly and print an actually helpful parameter description. This makes modinfo output the debug parameter like this: parm: debug:Enable debug output, where each bit enables a debug category. Bit 0 (0x01) will enable CORE messages (drm core code) Bit 1 (0x02) will enable DRIVER messages (drm controller code) Bit 2 (0x04) will enable KMS messages (modesetting code) Bit 3 (0x08) will enable PRIME messages (prime code) Bit 4 (0x10) will enable ATOMIC messages (atomic code) Bit 5 (0x20) will enable VBL messages (vblank code) (int) Changes from v1: * Fixed s/PRMIE/PRIME typo. * Add ATOMIC and VBL debug parameter documentation. * Prefix the continuation lines with two tabs and removed the last new line. * Remove spurious whitespace. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461170703-11216-1-git-send-email-ezequiel@vanguardiasur.com.ar
2016-04-21drm: Remove warning from drm_connector_unregister_all()Laurent Pinchart
Commit 6c87e5c3ec6d ("drm: Rename drm_connector_unplug_all() to drm_connector_unregister_all()") replaced a manual connectors list walk in drm_connector_unregister_all() with drm_for_each_connector(). The list was walked without the mode config mutex locked as that ends up in a clash with sysfs, but drm_connector_unregister_all() warns when the mutex isn't locked. The problem is known and doesn't require a large warning every time drm_connector_unregister_all() is called. Fix it by reverting to manual list walk. Fixes: 6c87e5c3ec6d ("drm: Rename drm_connector_unplug_all() to drm_connector_unregister_all()") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461190874-32674-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-04-20drm: probe_helper: Hide ugly ifdefEzequiel Garcia
Push the ifdef to the drm_edid.h and create a stub, for the DRM_LOAD_EDID_FIRMWARE=n case. This removes some clutter in the code, making it more readable. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461087638-16959-1-git-send-email-ezequiel@vanguardiasur.com.ar
2016-04-20drm: rcar-du: Use generic drm_connector_register_all() helperAlexey Brodkin
Now that a generic drm_connector_register_all() helper exists we may safely substitute it for the driver-specific implementation of connectors plugging in sysfs. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: linux-renesas-soc@vger.kernel.org Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461068693-11260-4-git-send-email-abrodkin@synopsys.com
2016-04-20drm: atmel_hldc: Use generic drm_connector_register_all() helperAlexey Brodkin
This driver used to have its own implementation of connector_register_all() which actually was taken as a prototype of drm_connector_register_all(). Now when drm_connector_register_all() exists reusing it here. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461068693-11260-3-git-send-email-abrodkin@synopsys.com
2016-04-20drm: Introduce drm_connector_register_all() helperAlexey Brodkin
As a pair to already existing drm_connector_unregister_all() we're adding generic implementation of what is already done in some drivers. Once this helper is implemented we'll be ready to switch existing driver-specific implementations with the generic one. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1461068693-11260-2-git-send-email-abrodkin@synopsys.com
2016-04-20drm/vma_manage: Drop has_offsetDaniel Vetter
It's racy, creating mmap offsets is a slowpath, so better to remove it to avoid drivers doing broken things. The only user is i915, and it's ok there because everything (well almost) is protected by dev->struct_mutex in i915-gem. While at it add a note in the create_mmap_offset kerneldoc that drivers must release it again. And then I also noticed that drm_gem_object_release entirely lacks kerneldoc. Cc: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-14-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/vgem: Drop dev->struct_mutexDaniel Vetter
With the previous two changes it doesn't protect anything any more. v2: Use _unlocked unreference variant. v3: Appease gcc noise. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-13-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/vgem: Move get_pages to gem_createDaniel Vetter
vgem doesn't have a shrinker or anything like that and drops backing storage only at object_free time. There's no use in trying to be clever and allocating backing storage delayed, it only causes trouble by requiring locking. Instead grab pages when we allocate the object right away. v2: Fix compiling. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-12-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/vgem: Simplify dumb_mapDaniel Vetter
The offset manager already checks for existing offsets internally, while holding suitable locks. We can drop this check. v2: Fix title (Emil). Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-11-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/exynos: drop struct_mutex from fbdev setupDaniel Vetter
Doesn't protect anything at all, and probably just here because a long time ago dev->struct_mutex was required to allocate gem objects. With this patch exynos is completely struct_mutex free! Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-10-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/exynos: drop struct_mutex from exynos_drm_gem_get_ioctlDaniel Vetter
The only things this protects is reading ->flags and ->size, both of which are invariant over the lifetime of an exynos gem bo. So no locking needed at all (besides that, nothing protects the writers anyway). Aside: exynos_gem_obj->size is redundant with exynos_gem_obj->base.size and probably should be removed. v2: Use _unlocked unreference (Daniel Stone). Cc: Daniel Stone <daniel@fooishbar.org> Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-9-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/exynos: drop struct_mutex from exynos_gem_map_sgt_with_dmaDaniel Vetter
The sg table isn't refcounted, there's no corresponding locking for unmapping and drm_map_sg is ok with being called concurrently. So drop the locking since it doesn't protect anything. Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-8-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/exynos: Drop dev->struct_mutex from mmap offset functionDaniel Vetter
Simply forgotten about this when I was doing my general cleansing of simple gem mmap offset functions. There's nothing but core functions called here, and they all have their own protection already. Aside: DRM_ERROR for userspace controlled input isn't great, but that's for another patch. v2: Use _unlocked unreference (Daniel Stone). Cc: Daniel Stone <daniel@fooishbar.org> Cc: Inki Dae <inki.dae@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-7-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/nouveau: Drop dev->struct_mutex from fbdev initDaniel Vetter
Doesn't protect anything at all. With this patch nouveau is completely dev->struct_mutex free! Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-6-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/qxl: Use unlocked gem unreferencingDaniel Vetter
For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-4-git-send-email-daniel.vetter@ffwll.ch Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-5-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/omapdrm: Use unlocked gem unreferencingDaniel Vetter
For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-3-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm/nouveau: Use unlocked gem unreferencingDaniel Vetter
For drm_gem_object_unreference callers are required to hold dev->struct_mutex, which these paths don't. Enforcing this requirement has become a bit more strict with commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Oct 15 09:36:25 2015 +0200 drm/gem: Check locking in drm_gem_object_unreference Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459330852-27668-2-git-send-email-daniel.vetter@ffwll.ch
2016-04-20drm: fix lut value extraction functionLionel Landwerlin
When extracting the value at full precision (16 bits), no need to round the value. This was spotted by Jani when running sparse. Unfortunately this fix doesn't get rid of the warning. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reported-by: Jani Nikula <jani.nikula@intel.com> Cc: Daniel Stone <daniels@collabora.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: dri-devel@lists.freedesktop.org Fixes: 5488dc16fde7 ("drm: introduce pipe color correction properties") Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1458655833-19547-1-git-send-email-lionel.g.landwerlin@intel.com
2016-04-18drm/atomic-helper: Print an error if vblank wait times outVille Syrjälä
Vblank waits timing out is no a normal thing to happen, so let's inform people when it happens. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460978973-24945-2-git-send-email-ville.syrjala@linux.intel.com
2016-04-15drm/dp/mst: Restore primary hub guid on resumeLyude
Some hubs are forgetful, and end up forgetting whatever GUID we set previously after we do a suspend/resume cycle. This can lead to hotplugging breaking (along with probably other things) since the hub will start sending connection notifications with the wrong GUID. As such, we need to check on resume whether or not the GUID the hub is giving us is valid. Signed-off-by: Lyude <cpaul@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460580618-7421-1-git-send-email-cpaul@redhat.com
2016-04-15drm: Release driver references to handle before making it available againChris Wilson
When userspace closes a handle, we remove it from the file->object_idr and then tell the driver to drop its references to that file/handle. However, as the file/handle is already available again for reuse, it may be reallocated back to userspace and active on a new object before the driver has had a chance to drop the old file/handle references. Whilst calling back into the driver, we have to drop the file->table_lock spinlock and so to prevent reusing the closed handle we mark that handle as stale in the idr, perform the callback and then remove the handle. We set the stale handle to point to the NULL object, then any idr_find() whilst the driver is removing the handle will return NULL, just as if the handle is already removed from idr. Note: This will be used to have a direct handle -> vma lookup table, instead of first a handle -> obj lookup, and then an (obj, vm) -> vma lookup. v2: Use NULL rather than an ERR_PTR to avoid having to adjust callers. idr_alloc() tracks existing handles using an internal bitmap, so we are free to use the NULL object as our stale identifier. v3: Needed to update the return value check after changing from using the stale error pointer to NULL. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: dri-devel@lists.freedesktop.org Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Thierry Reding <treding@nvidia.com> [danvet: Add note about the use-case.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460721308-32405-1-git-send-email-chris@chris-wilson.co.uk
2016-04-15drm/i915/dp/mst: Add source port info to debugfs outputJim Bride
Modify the debugfs output for i915_dp_mst_info to list the source port for the DP MST topology in question. v2: rebase v3: rebase v4: rebase cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jim Bride <jim.bride@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460654317-31288-3-git-send-email-jim.bride@linux.intel.com
2016-04-15drm/dp/mst: Enhance DP MST debugfs outputJim Bride
Add some additional information (input vs. output port, sink associated with VC, peer device type, max number of VCs supported) and ensure that any embedded '\0' characters in a branch device's devid string are not written to debugfs. v2: Rebase + change drm_edid_get_monitor_name() call to reflect new signature. v3: Minor changes suggested by Jani + rebase. v4: Rebase cc: dri-devel@lists.freedesktop.org cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jim Bride <jim.bride@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460654317-31288-2-git-send-email-jim.bride@linux.intel.com
2016-04-15drm/edid: Add drm_edid_get_monitor_name()Jim Bride
In order to include monitor name information in debugfs output we needed to add a function that would extract the monitor name from the EDID, and that function needed to reside in the file where the rest of the EDID helper functions are implemented. v2: Refactor to have drm_edid_get_monitor_name() and drm_edid_to_eld() use a common helper function to extract the monitor name from the edid. [Jani] + rebase. v3: Minor changes suggested by Jani + rebase. v4: Few more minor changes suggested by Jani + rebase. cc: dri-devel@lists.freedesktop.org cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jim Bride <jim.bride@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460654317-31288-1-git-send-email-jim.bride@linux.intel.com
2016-04-14include/drm: Reword debug categories comment.Robert Foss
The debug category comment mentions 4 categories, but more than 4 categories are listed. Let's change the wording to something a bit more generic. Signed-off-by: Robert Foss <robert.foss@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1460644456-9752-1-git-send-email-robert.foss@collabora.com
2016-04-14drm: atmel-hlcdc: route DMA accesses through AHB interfacesBoris Brezillon
In relation with the actuall bandwidth consumed on a DMA Source interface, choose the less used one for a created plane. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: check display mode validity in crtc->mode_fixup()Boris Brezillon
Move the adjusted display mode check into ->mode_fixup(). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: rework the output code to support drm bridgesBoris Brezillon
The current output code only supports connection to drm panels. First simplify the drm panel code, and then add support for external drm bridges. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: move output mode selection in CRTC implementationBoris Brezillon
In order to support multiple outputs we need to move the output mode selection to the CRTC object, so that the output validity check can be done against the drm_atomic_state. If the connectors selected by a specific mode setting are requiring incompatible bus format the atomic operation is aborted (->atomic_check() returns -EINVAL). In order to implement that, we need to define our own CRTC state and overload default ->reset(), ->atomic_duplicate_state() and ->atomic_destroy_state() functions. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: support extended timing ranges on sama5d4 and sama5d2Boris Brezillon
The display timings on old SoCs older than the sama5d4 are quite limited and prevent the use of many displays. Add support for extended timing ranges on sama5d2 and sama5d4. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: remove leftovers from atomic mode setting migrationBoris Brezillon
The ->dpms field is no longer used and can be removed. The same goes for the dummy ->mode_fixup() implementation which always returns true. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: fix connector and encoder typesBoris Brezillon
The hlcdc IP keep the pixel stream in raw RGB mode, and does not provide any specific connector. Since DRM_MODE_CONNECTOR_RAW_RGB does not exist, use DRM_MODE_CONNECTOR_Unknown. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: support asynchronous atomic commit operationsBoris Brezillon
drm_atomic_helper_commit() does not support asynchronous commits. Replace it by a specific commit function supporting these kind of requests. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm: atmel-hlcdc: add a ->cleanup_fb() operationBoris Brezillon
Add a ->cleanup_fb() operation to avoid memory leaks when the atomic operation is interrupted after the ->prepare_fb() call. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes 2389fc1 ("drm: atmel-hlcdc: Atomic mode-setting conversion") Reviewed-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-04-14drm/crtc_helper: Reset empty plane state in drm_helper_crtc_mode_set_base()Liu Ying
Transitional drivers might access the NULL pointer plane->state in drm_helper_crtc_mode_set_base(), which causes NULL pointer dereference. So, let's reset it before handing it over to those drivers. commit e4f31ad2b713 ("drm: reset empty state in transitional helpers") did the same thing for other transitional helpers, but it seems this one was missed. Signed-off-by: Liu Ying <gnuiyl@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1459846239-8946-1-git-send-email-gnuiyl@gmail.com
2016-04-14Merge branch 'gma500-next' of git://github.com/patjak/drm-gma500 into drm-nextDave Airlie
A few fixes and cleanups for 4.7 that's been collecting dust in my inbox for a while. * 'gma500-next' of git://github.com/patjak/drm-gma500: drm/gma500/mdfld_dsi: remove bogus if check drm/gma500: Fix possible out of bounds read drm/gma500: fix double freeing
2016-04-12drm/virtio: Drop dummy gamma table supportDaniel Vetter
No need to confuse userspace like this. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459331485-28376-8-git-send-email-daniel.vetter@ffwll.ch
2016-04-12drm/bochs: Drop fake gamma supportDaniel Vetter
Only really needed for fbdev emulation at 8bpp. And bochs doesn't do that. And either way bochs only does 32bit rgb, so this is all pretty much wasted dead code. The only consideration is that we need to not set up any gamma size either. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1459331485-28376-5-git-send-email-daniel.vetter@ffwll.ch
2016-04-12drm/core: Fix ordering in drm_mode_config_cleanup.Maarten Lankhorst
__drm_atomic_helper_plane_destroy_state calls drm_framebuffer_unreference, which means that if drm_framebuffer_free is called before plane->destroy freed memory will be accessed. A similar case happens for the blob list, which was freed before the crtc state was, resulting in the unreference_blob from crtc_destroy_state pointing to garbage memory causing another opportunity for a GPF. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1458657734-21866-1-git-send-email-maarten.lankhorst@linux.intel.com
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