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2020-01-04drm: mst: Fix query_payload ack reply structSean Paul
[ Upstream commit 268de6530aa18fe5773062367fd119f0045f6e88 ] Spec says[1] Allocated_PBN is 16 bits [1]- DisplayPort 1.2 Spec, Section 2.11.9.8, Table 2-98 Fixes: ad7f8a1f9ced ("drm/helper: add Displayport multi-stream helper (v0.6)") Cc: Lyude Paul <lyude@redhat.com> Cc: Todd Previte <tprevite@gmail.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190829165223.129662-1-sean@poorly.run Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-26drm: move edid property update and add modes out of edid firmware loaderJani Nikula
Make the firmware loader more generic and generally useful. Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1487344854-18777-2-git-send-email-jani.nikula@intel.com Git-commit: 07c2b84b9956dd5d0871d47f5f0bbf9388d2d83f Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: I918426a1ef7b11cfea95827b89eec821d1f4a95a Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
2019-07-26drm/edid: Have drm_edid.h include hdmi.hVille Syrjälä
drm_edid.h depends on hdmi.h on account of enum hdmi_picture_aspect, so let's just include hdmi.h and drop some useless struct declarations. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170111125725.8086-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Eric Anholt <eric@anholt.net> Git-commit: 00147934598478f7fbd0a4ce5380f2fecad542b5 Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: I9f51968fd442fea75960fdeed752904ba8b8ba05 Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
2019-07-24drm: 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 Git-commit: ba34d58c5e86c27accb3133fa991cfb6c848c58e Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Change-Id: Ice586a7d90538d77a3f120bb9ba6214e17b926d0 Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
2018-08-06drm: Add DP PSR2 sink enable bitJosé Roberto de Souza
[ Upstream commit 4f212e40468650e220c1770876c7f25b8e0c1ff5 ] To comply with eDP1.4a this bit should be set when enabling PSR2. Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180328223046.16125-1-jose.souza@intel.com Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-18drm: Allow determining if current task is output poll workerLukas Wunner
commit 25c058ccaf2ebbc3e250ec1e199e161f91fe27d4 upstream. Introduce a helper to determine if the current task is an output poll worker. This allows us to fix a long-standing deadlock in several DRM drivers wherein the ->runtime_suspend callback waits for the output poll worker to finish and the worker in turn calls a ->detect callback which waits for runtime suspend to finish. The ->detect callback is invoked from multiple call sites and waiting for runtime suspend to finish is the correct thing to do except if it's executing in the context of the worker. v2: Expand kerneldoc to specifically mention deadlock between output poll worker and autosuspend worker as use case. (Lyude) Cc: Dave Airlie <airlied@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Link: https://patchwork.freedesktop.org/patch/msgid/3549ce32e7f1467102e70d3e9cbf70c46bfe108e.1518593424.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-16drm: extra printk() wrapper macrosDave Gordon
commit 30b0da8d556e65ff935a56cd82c05ba0516d3e4a upstream. We had only DRM_INFO() and DRM_ERROR(), whereas the underlying printk() provides several other useful intermediate levels such as NOTICE and WARNING. So this patch fills out the set by providing both regular and once-only macros for each of the levels INFO, NOTICE, and WARNING, using a common underlying macro that does all the token-pasting. DRM_ERROR is unchanged, as it's not just a printk wrapper. v2: Fix whitespace, missing ## (Eric Engestrom) Signed-off-by: Dave Gordon <david.s.gordon@intel.com> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Cc: dri-devel@lists.freedesktop.org Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-01drm/edid: add colorimetry block parsing supportAbhinav Kumar
Add support for parsing the colorimetry data block of EDID to get information about the supported encoding formats of the sink. This information is needed to use the appropriate color encoding scheme before transmitting the video stream to the sink. Change-Id: I133e8f21fa4ad843219dbefed2d072ad2edab197 Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2017-08-01drm/edid: add support for parsing quantization select fieldAbhinav Kumar
Add support for parsing the RGB and YCC quantization selectable field from the Video Capability Data block(VCDB) of the EDID. These fields help to decide whether the default quantization range for a particular video format can be overridden by the source. Change-Id: Ibc72eb13302527089ad66231cd7e8bb34fb364f3 Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2017-06-30drm/msm: add support for parsing YUV 420 deep colorAbhinav Kumar
Current upstream parser only handles RGB deep color modes. Add support in the SDE EDID parser module to parse HDMI VSDB block and indicate support for YUV 420 deep color modes in the sink. Change-Id: If6c007263094e7716a29cae503d3e3471ae04306 Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2017-06-02drm/msm: Fix drm_mm bottom_up searchSushmita Susheelendra
The bottom up search of drm_mm hole nodes is currently broken. It does not correctly look for the first hole (smallest address) that fits the allocation from the bottom up. Use an RB tree to record hole nodes with their address as key, so that the hole with the smallest address that satisfies the request can be looked up. Change-Id: Ie3020cb4e8b6db13a35d0fe5caaa8781cb6ced9f Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>
2017-05-31drm: Track drm_mm nodes with an interval treeChris Wilson
In addition to the last-in/first-out stack for accessing drm_mm nodes, we occasionally and in the future often want to find a drm_mm_node by an address. To do so efficiently we need to track the nodes in an interval tree - lookups for a particular address will then be O(lg(N)), where N is the number of nodes in the range manager as opposed to O(N). Insertion however gains an extra O(lg(N)) step for all nodes irrespective of whether the interval tree is in use. For future i915 patches, eliminating the linear walk is a significant improvement. v2: Use generic interval-tree template for u64 and faster insertion. Change-Id: Iddcb7891480ca7d6e0469c8d394fcd1962ed4583 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: David Herrmann <dh.herrmann@gmail.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1470236651-678-1-git-send-email-chris@chris-wilson.co.uk Git-commit: 202b52b7fbf70858609ec20829c7d69a13ffa351 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>
2017-04-12drm/ttm, drm/vmwgfx: Relax permission checking when opening surfacesThomas Hellstrom
commit fe25deb7737ce6c0879ccf79c99fa1221d428bf2 upstream. Previously, when a surface was opened using a legacy (non prime) handle, it was verified to have been created by a client in the same master realm. Relax this so that opening is also allowed recursively if the client already has the surface open. This works around a regression in svga mesa where opening of a shared surface is used recursively to obtain surface information. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-10drm: edid: add support for parsing additional EDID blocksAbhinav Kumar
Currently the DRM upstream EDID parser doesn't have support to parse all EDID blocks such as extension tag blocks. Add support for parsing these blocks and extract necessary info. Change-Id: Iae92de79960f6f0e73a8e2ff7944c1bf101d90a6 Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2017-04-07drm: edid: HDMI 2.0 HF-VSDB block parsingJose Abreu
Adds parsing for HDMI 2.0 'HDMI Forum Vendor Specific Data Block'. This block is present in some HDMI 2.0 EDID's and gives information about scrambling support, SCDC, 3D Views, and others. Parsed parameters are stored in drm_connector structure. Change-Id: I018cfefea2fd3827d5f83c8e5717ebd95e497519 Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: Carlos Palminha <palminha@synopsys.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Patch-mainline: dri-devel @ 10 Aug 2016 16:29 Signed-off-by: Jin Li <jinl@codeaurora.org> Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2017-04-07drm/edid: add displayid detailed 1 timings to the modelist. (v1.1)Dave Airlie
The tiled 5K Dell monitor appears to be hiding it's tiled mode inside the displayid timings block, this patch parses this block and adds the modes to the modelist. v1.1: add missing __packed. Change-Id: Ief7b88bc18b6a7514a8575412937b74c38f971e4 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95207 Signed-off-by: Dave Airlie <airlied@redhat.com> Git-commit: a39ed680bddb1ead592e22ed812c7e47286bfc03 Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
2016-11-22drm: Increase max number of DRM object propertiesBenet Clark
The maximum number of properties that can be created for a DRM object needs to be increased. Change-Id: Ic0f6d9ec73a6071dbb397b924a4389a9afb81bdc Signed-off-by: Benet Clark <benetc@codeaurora.org>
2016-10-31drm/prime: Pass the right module owner through to dma_buf_export()Chris Wilson
commit 56a76c0123d6cb034975901c80fce2627338ef9e upstream. dma_buf_export() adds a reference to the owning module to the dmabuf (to prevent the driver from being unloaded whilst a third party still refers to the dmabuf). However, drm_gem_prime_export() was passing its own THIS_MODULE (i.e. drm.ko) rather than the driver. Extract the right owner from the device->fops instead. v2: Use C99 initializers to zero out unset elements of dma_buf_export_info v3: Extract the right module from dev->fops. Testcase: igt/vgem_basic/unload Reported-by: Petri Latvala <petri.latvala@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Petri Latvala <petri.latvala@intel.com> Cc: Christian König <christian.koenig@amd.com> Tested-by: Petri Latvala <petri.latvala@intel.com> Reviewed-by: Petri Latvala <petri.latvala@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161005122145.1507-1-chris@chris-wilson.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-15drm/i915/skl: Add missing SKL idsMichał Winiarski
[ Upstream commit 7157bb27e79875db5603aa1e30f56e873a8300f9 ] Used by production devices: Intel(R) Iris Graphics 540 (Skylake GT3e) Intel(R) Iris Graphics 550 (Skylake GT3e) v2: More ids v3: Less ids (GT1 got duplicated) Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1454674902-26207-1-git-send-email-michal.winiarski@intel.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-15drm/i915/bxt: update list of PCIIDsImre Deak
[ Upstream commit 985dd4360fdf2533fe48a33a4a2094f2e4718dc0 ] Add PCIIDs for new versions of the SOC, based on BSpec. Also add the name of the versions as code comment where this is available. The new versions don't have any changes visible to the kernel driver. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1453989852-13569-1-git-send-email-imre.deak@intel.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-26Revert "Merge remote-tracking branch 'msm-4.4/tmp-510d0a3f' into msm-4.4"Trilok Soni
This reverts commit 9d6fd2c3e9fcfb ("Merge remote-tracking branch 'msm-4.4/tmp-510d0a3f' into msm-4.4"), because it breaks the dump parsing tools due to kernel can be loaded anywhere in the memory now and not fixed at linear mapping. Change-Id: Id416f0a249d803442847d09ac47781147b0d0ee6 Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
2016-07-27drm/ttm: Make ttm_bo_mem_compat availableSinclair Yeh
commit 94477bff390aa4612d2332c8abafaae0a13d6923 upstream. There are cases where it is desired to see if a proposed placement is compatible with a buffer object before calling ttm_bo_validate(). Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04drm: Loongson-3 doesn't fully support wc memoryHuacai Chen
commit 221004c66a58949a0f25c937a6789c0839feb530 upstream. Signed-off-by: Huacai Chen <chenhc@lemote.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03drm: add helper to check for wc memory supportDave Airlie
commit 4b0e4e4af6c6dc8354dcb72182d52c1bc55f12fc upstream. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03drm/dp/mst: move GUID storage from mgr, port to only mst branchHersen Wu
commit 5e93b8208d3c419b515fb75e2601931c027e12ab upstream. Previous implementation does not handle case below: boot up one MST branch to DP connector of ASIC. After boot up, hot plug 2nd MST branch to DP output of 1st MST, GUID is not created for 2nd MST branch. When downstream port of 2nd MST branch send upstream request, it fails because 2nd MST branch GUID is not available. New Implementation: only create GUID for MST branch and save it within Branch. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03drm: Add drm_fixp_from_fraction and drm_fixp2int_ceilHarry Wentland
commit 64566b5e767f9bc3161055ca1b443a51afb52aad upstream. drm_fixp_from_fraction allows us to create a fixed point directly from a fraction, rather than creating fixed point values and dividing later. This avoids overflow of our 64 bit value for large numbers. drm_fixp2int_ceil allows us to return the ceiling of our fixed point value. [airlied: squash Jordan's fix] 32-bit-build-fix: Jordan Lazare <Jordan.Lazare@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-03drm/dp/mst: always send reply for UP requestMykola Lysenko
commit 1f16ee7fa13649f4e55aa48ad31c3eb0722a62d3 upstream. We should always send reply for UP request in order to make downstream device clean-up resources appropriately. Issue was that reply for UP request was sent only once. Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-04drm/nouveau: Fix pre-nv50 pageflip events (v4)Daniel Vetter
Apparently pre-nv50 pageflip events happen before the actual vblank period. Therefore that functionality got semi-disabled in commit af4870e406126b7ac0ae7c7ce5751f25ebe60f28 Author: Mario Kleiner <mario.kleiner.de@gmail.com> Date: Tue May 13 00:42:08 2014 +0200 drm/nouveau/kms/nv04-nv40: fix pageflip events via special case. Unfortunately that hack got uprooted in commit cc1ef118fc099295ae6aabbacc8af94d8d8885eb Author: Thierry Reding <treding@nvidia.com> Date: Wed Aug 12 17:00:31 2015 +0200 drm/irq: Make pipe unsigned and name consistent Triggering a warning when trying to sample the vblank timestamp for a non-existing pipe. There's a few ways to fix this: - Open-code the old behaviour, which just enshrines this slight breakage of the userspace ABI. - Revert Mario's commit and again inflict broken timestamps, again not pretty. - Fix this for real by delaying the pageflip TS until the next vblank interrupt, thereby making it accurate. This patch implements the third option. Since having a page flip interrupt that happens when the pageflip gets armed and not when it completes in the next vblank seems to be fairly common (older i915 hw works very similarly) create a new helper to arm vblank events for such drivers. v2 (Mario Kleiner): - Fix function prototypes in drmP.h - Add missing vblank_put() for pageflip completion without pageflip event. - Initialize sequence number for queued pageflip event to avoid trouble in drm_handle_vblank_events(). - Remove dead code and spelling fix. v3 (Mario Kleiner): - Add a signed-off-by and cc stable tag per Ilja's advice. v4 (Thierry Reding): - Fix kerneldoc typo, discovered by Michel Dänzer - Rearrange tags and changelog Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=106431 Cc: Thierry Reding <treding@nvidia.com> Cc: Mario Kleiner <mario.kleiner.de@gmail.com> Acked-by: Ben Skeggs <bskeggs@redhat.com> Cc: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: stable@vger.kernel.org # v4.3 Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-12-04drm: Fix an unwanted master inheritance v2Thomas Hellstrom
A client calling drmSetMaster() using a file descriptor that was opened when another client was master would inherit the latter client's master object and all its authenticated clients. This is unwanted behaviour, and when this happens, instead allocate a brand new master object for the client calling drmSetMaster(). Fixes a BUG() throw in vmw_master_set(). Cc: <stable@vger.kernel.org> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-11-17drm/atomic: add a drm_atomic_clean_old_fb helper.Maarten Lankhorst
This is useful for all the boilerplate code about cleaning old_fb. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1447237751-9663-4-git-send-email-maarten.lankhorst@ubuntu.com
2015-11-06signals: kill block_all_signals() and unblock_all_signals()Oleg Nesterov
It is hardly possible to enumerate all problems with block_all_signals() and unblock_all_signals(). Just for example, 1. block_all_signals(SIGSTOP/etc) simply can't help if the caller is multithreaded. Another thread can dequeue the signal and force the group stop. 2. Even is the caller is single-threaded, it will "stop" anyway. It will not sleep, but it will spin in kernel space until SIGCONT or SIGKILL. And a lot more. In short, this interface doesn't work at all, at least the last 10+ years. Daniel said: Yeah the only times I played around with the DRM_LOCK stuff was when old drivers accidentally deadlocked - my impression is that the entire DRM_LOCK thing was never really tested properly ;-) Hence I'm all for purging where this leaks out of the drm subsystem. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Dave Airlie <airlied@redhat.com> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-20drm: Introduce generic probe function for component based masters.Liviu Dudau
A lot of component based DRM drivers use a variant of the same code as the probe function. They bind the crtc ports in the first iteration and then scan through the child nodes and bind the encoders attached to the remote endpoints. Factor the common code into a separate function called drm_of_component_probe() in order to increase code reuse. Cc: David Airlie <airlied@linux.ie> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1445332995-11212-2-git-send-email-Liviu.Dudau@arm.com Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-19drm: Check crtc viewport correctly with rotated primary plane on atomic driversVille Syrjälä
On atomic drivers we can dig out the primary plane rotation from the plane state instead of looking at the legacy crtc->invert_dimensions flag. The flag is not set by anyone except omapdrm, and it would be racy to set it the same way in the atomic helpers. v2: Kill crtc->invert_dimensions totally since omap is state based already and no one else ever used it (Matt) Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1445009919-22746-1-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-19drm/gem: Use kref_get_unless_zero for the weak mmap referencesDaniel Vetter
Compared to wrapping the final kref_put with dev->struct_mutex this allows us to only acquire the offset manager look both in the final cleanup and in the lookup. Which has the upside that no locks leak out of the core abstractions. But it means that we need to hold a temporary reference to the object while checking mmap constraints, to make sure the object doesn't disappear. Extended the critical region would have worked too, but would result in more leaky locking. Also, this is the final bit which required dev->struct_mutex in gem core, now modern drivers can be completely struct_mutex free! This needs a new drm_vma_offset_exact_lookup_locked and makes both drm_vma_offset_exact_lookup and drm_vma_offset_lookup unused. v2: Don't leak object references in failure paths (David). v3: Add a comment from Chris explaining how the ordering works, with the slight adjustment that I dropped any mention of struct_mutex since with this patch it's now immaterial ot core gem. Cc: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://mid.gmane.org/1444901623-18918-1-git-send-email-daniel.vetter@ffwll.ch Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-10-19drm/gem: Check locking in drm_gem_object_unreferenceDaniel Vetter
Pretty soon only some drivers will need dev->struct_mutex in their gem_free_object callbacks. Hence it's really important to make sure everything still keeps getting this right. v2: Don't check for locking before we check for non-NULL obj. Spotted by Dan Carpenter. Link: http://mid.gmane.org/1444894601-5200-10-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-10-16gpu/doc: Convert to markdown harderLukas Wunner
This snippet... * Lock VMA manager for extended lookups. Only *_locked() VMA function calls * are allowed while holding this lock. All other contexts are blocked from VMA * until the lock is released via drm_vma_offset_unlock_lookup(). ...causes markdown-enabled kernel-doc to barf: debian/build/build-doc/Documentation/DocBook/gpu.aux.xml:3247: parser error : Opening and ending tag mismatch: emphasis line 3247 and function *<function><emphasis>locked</function> VMA function calls are allowed while ^ /root/airlied/debian/build/build-doc/Documentation/DocBook/gpu.aux.xml:3249: parser error : Opening and ending tag mismatch: function line 3249 and emphasis released via <function>drm</emphasis>vma_offset_unlock_lookup</function>. ^ unable to parse /root/airlied/debian/build/build-doc/Documentation/DocBook/gpu.aux.xml A quick workaround is to replace *_locked() by X_locked(). Cc: Danilo Cesar Lemes de Paula <danilo.cesar@collabora.co.uk> Signed-off-by: Lukas Wunner <lukas@wunner.de> [danvet: Just drop the X_ too, the usual style is _unlocked, except that _ seems to be what annoys markdown.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-16drm: Add DRM_DEBUG_VBL()Ville Syrjälä
Add a new debug class for _verbose_ debug message from the vblank code. That is message we spew out potentially for every vblank interrupt. Thierry already got annoyed at the spew, and now I managed to lock up my box with these debug prints (seems serial console + a few debug prints every vblank aren't a good combination). Or should I maybe call it DRM_DEBUG_IRQ? Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-15drm/dp/mst: make mst i2c transfer code more robust.Dave Airlie
This zeroes the msg so no random stack data ends up getting sent, it also limits the function to not accepting > 4 i2c msgs. Cc: stable@vger.kernel.org Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-07drm: Stop using drm_vblank_count() as the hw frame counterVille Syrjälä
drm_vblank_count() returns the software counter. We should not pretend it's the hw counter since we use the hw counter to figuere out what the software counter value should be. So instead provide a new function drm_vblank_no_hw_counter() for drivers that don't have a real hw counter. The new function simply returns 0, which is about the only thing it can do. Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Vincent Abriou <vincent.abriou@st.com> [danvet: s/int pipe/unsigned int pipe/ to follow Thierry's interface change.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-07drm/i915: add kerneldoc for i915_audio_componentLibin Yang
Add the kerneldoc for i915_audio_component in i915_component.h Signed-off-by: Libin Yang <libin.yang@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-06drm/irq: Use unsigned int pipe in public APIThierry Reding
This continues the pattern started in commit cc1ef118fc09 ("drm/irq: Make pipe unsigned and name consistent"). This is applied to the public APIs and driver callbacks, so pretty much all drivers need to be updated to match the new prototypes. Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Inki Dae <inki.dae@samsung.com> Cc: Jianwei Wang <jianwei.wang.chn@gmail.com> Cc: Alison Wang <alison.wang@freescale.com> Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: David Airlie <airlied@linux.ie> Cc: Rob Clark <robdclark@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-05drm: Add DRM_ROTATE_MASK and DRM_REFLECT_MASKJoonas Lahtinen
Makes it cleaner to separate the two from rotation variable. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-10-02drm/dp/mst: add some defines for logical/physical portsDave Airlie
This just removes the magic number. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-10-02drm/dp/mst: split connector registration into two parts (v2)Dave Airlie
In order to cache the EDID properly for tiled displays, we need to retrieve it before we register the connector with userspace, otherwise userspace can call get resources and try and get the edid before we've even cached it. This fixes some problems when hotplugging mst monitors, with X/mutter running. As mutter seems to get 0 modes for one of the monitors in the tile. v2: fix warning in radeon handle tile setting in cached path rather than get edid path. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-09-30drm: Add a non-locking version of drm_kms_helper_poll_enable(), v2Egbert Eich
drm_kms_helper_poll_enable() was converted to lock the mode_config mutex in commit 8c4ccc4ab6f64e859d4ff8d7c02c2ed2e956e07f ("drm/probe-helper: Grab mode_config.mutex in poll_init/enable"). This disregarded the cases where this function is called from a context where this mutex is already locked. Add a non-locking version as well. Changes since v1: - use function name suffix '_locked' for the function that is to be called from a locked context. Signed-off-by: Egbert Eich <eich@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2015-09-30drm: Remove dummy agp ioctl wrappersDaniel Vetter
They're only used in the drm ioctl table, and there they're excluded when AGP support is disabled. So this is just dead code ripe for removal. Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-09-30drm: Define a drm_invalid_op ioctl implementationDaniel Vetter
And use it in radeon to replace all the ioctls no longer valid in kms mode. I plan to also use this later on when nuking the ums support for i915. Note that setting the function pointer in the ioctl table to NULL would amount to the same, but that results in some debug output from the drm_ioctl() function. I've figured it's cleaner to have a special-purpose function. Cc: Alex Deucher <alexdeucher@gmail.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-09-30drm: Remove __OS_HAS_AGPDaniel Vetter
We already express the drm/agp depencies correctly in Kconfig, so we can rip this remnant from the shared drm core days. Aside: Pretty much all the #ifdefs in radeon/nouveau could be killed if ttm would provide dummy functions. I'm not going to volunteer for that though. v2: Use IS_ENABLED(CONFIG_AGP) as suggested by Ville v3: Polish from Ville's review. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> (v2) Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-09-25drm/i915: set proper N/CTS in modesetLibin Yang
When modeset occurs and the TMDS frequency is set to some speical values, the N/CTS need to be set manually if audio is playing. Signed-off-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-25drm/i915: Add audio sync_audio_rate callbackLibin Yang
Add the sync_audio_rate callback. With the callback, audio driver can trigger i915 driver to set the proper N/CTS or N/M based on different sample rates. Signed-off-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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