linux/drivers/gpu/drm/drm_atomic.c, branch v4.9

drm: Release reference from blob lookup after replacing property

2016-10-26T08:28:10Z

drm_property_lookup_blob() returns a reference to the returned blob, and drm_atomic_replace_property_blob() takes a references to the blob it stores, so afterwards we are left owning a reference to the new_blob that we never release, and thus leak memory every time we update a property such as during drm_atomic_helper_legacy_gamma_set(). v2: update credentials, drm_property_unreference_blob() is NULL safe and NULL is passed consistently to it throughout drm_atomic.c so do so here. Reported-by: Felix Monninger Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98420 Signed-off-by: Felix Monninger Signed-off-by: Chris Wilson Cc: stable@vger.kernel.org Fixes: 5488dc16fde7 ("drm: introduce pipe color correction properties") Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20161025212808.3908-1-chris@chris-wilson.co.uk

Merge tag 'v4.8-rc8' into drm-next

2016-09-28T02:08:49Z

Linux 4.8-rc8 There was a lot of fallout in the imx/amdgpu/i915 drivers, so backmerge it now to avoid troubles. * tag 'v4.8-rc8': (1442 commits) Linux 4.8-rc8 fault_in_multipages_readable() throws set-but-unused error mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing radix tree: fix sibling entry handling in radix_tree_descend() radix tree test suite: Test radix_tree_replace_slot() for multiorder entries fix memory leaks in tracing_buffers_splice_read() tracing: Move mutex to protect against resetting of seq data MIPS: Fix delay slot emulation count in debugfs MIPS: SMP: Fix possibility of deadlock when bringing CPUs online mm: delete unnecessary and unsafe init_tlb_ubc() huge tmpfs: fix Committed_AS leak shmem: fix tmpfs to handle the huge= option properly blk-mq: skip unmapped queues in blk_mq_alloc_request_hctx MIPS: Fix pre-r6 emulation FPU initialisation arm64: kgdb: handle read-only text / modules arm64: Call numa_store_cpu_info() earlier. locking/hung_task: Fix typo in CONFIG_DETECT_HUNG_TASK help text nvme-rdma: only clear queue flags after successful connect i2c: qup: skip qup_i2c_suspend if the device is already runtime suspended perf/core: Limit matching exclusive events to one PMU ...

drm: Move property validation to a helper, v2.

2016-09-12T14:32:49Z

Property lifetimes are equal to the device lifetime, so the separate drm_property_find is not needed. The pointer can be retrieved from the properties member, which saves us some locking and a extra lookup. The lifetime for properties is until the device is destroyed, which happens late in the device unload path. kms_atomic is also testing for invalid properties which returns -ENOENT, to be consistent return -ENOENT for valid properties that don't appear on the object property list. Changes since v1: - Return -ENOENT for invalid properties to make kms_atomic pass. - Change commit message slightly to take this into account. Testcase: kms_atomic Testcase: kms_properties Fixes: 4e9951d96093 ("drm/atomic: Reject properties not part of the object.") Suggested-by: Ville Syrjälä Signed-off-by: Maarten Lankhorst Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/599c7fa8-b6fd-a42b-c619-a9e4a9c5c244@linux.intel.com

drm/atomic: Reject properties not part of the object.

2016-09-06T17:56:41Z

The legacy setprop ioctl doesn't attempt to set properties that are not enumerated on the object. The atomic ioctl does, fix this by validating first. Signed-off-by: Maarten Lankhorst Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1473062773-5045-1-git-send-email-maarten.lankhorst@linux.intel.com

drm/atomic: Don't potentially reset color_mgmt_changed on successive property updates.

2016-08-28T20:55:47Z

Due to assigning the 'replaced' value instead of or'ing it, if drm_atomic_crtc_set_property() gets called multiple times, the last call will define the color_mgmt_changed flag, so a non-updating call to a property can reset the flag and prevent actual hw state updates required by preceding property updates. Signed-off-by: Mario Kleiner Cc: Daniel Vetter Cc: # v4.6+ Reviewed-by: Daniel Vetter Signed-off-by: Dave Airlie

drm: remove `const` attribute to hint at caller that they now own the memory

2016-08-16T12:06:53Z

Signed-off-by: Eric Engestrom Reviewed-by: Jani Nikula Signed-off-by: Daniel Vetter

drm: make drm_get_format_name thread-safe

2016-08-15T07:25:12Z

Signed-off-by: Eric Engestrom [danvet: Clarify that the returned pointer must be freed with kfree().] Signed-off-by: Daniel Vetter

drm: add generic zpos property

2016-07-29T07:59:30Z

version 8: - move drm_blend.o from drm-y to drm_kms_helper-y to avoid EXPORT_SYMBOL(drm_atomic_helper_normalize_zpos) - remove dead function declarations in drm_crtc.h version 7: - remove useless EXPORT_SYMBOL() - better z-order wording in Documentation version 6: - add zpos in gpu documentation file - merge Ville patch about zpos initial value and API improvement. I have split Ville patch between zpos core and drivers version 5: - remove zpos range check and comeback to 0 to N-1 normalization algorithm version 4: - make sure that normalized zpos value is stay in the defined property range and warn user if not This patch adds support for generic plane's zpos property property with well-defined semantics: - added zpos properties to plane and plane state structures - added helpers for normalizing zpos properties of given set of planes - well defined semantics: planes are sorted by zpos values and then plane id value if zpos equals Normalized zpos values are calculated automatically when generic muttable zpos property has been initialized. Drivers can simply use plane_state->normalized_zpos in their atomic_check and/or plane_update callbacks without any additional calls to DRM core. Signed-off-by: Marek Szyprowski Compare to Marek's original patch zpos property is now specific to each plane and no more to the core. Normalize function take care of the range of per plane defined range before set normalized_zpos. Signed-off-by: Benjamin Gaignard Reviewed-by: Ville Syrjälä Acked-by: Laurent Pinchart Tested-by: Laurent Pinchart Cc: Inki Dae Cc: Daniel Vetter Cc: Ville Syrjala Cc: Joonyoung Shim Cc: Seung-Woo Kim Cc: Andrzej Hajda Cc: Krzysztof Kozlowski Cc: Bartlomiej Zolnierkiewicz Cc: Tobias Jakobi Cc: Gustavo Padovan Cc: vincent.abriou@st.com Cc: fabien.dessenne@st.com Cc: Laurent Pinchart

drm/atomic: Delete an unnecessary check before drm_property_unreference_blob()

2016-07-20T17:23:39Z

The drm_property_unreference_blob() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/aa4cd508-38c3-78d7-a9f2-70e3b06a8fb5@users.sourceforge.net

Merge remote-tracking branch 'airlied/drm-next' into topic/drm-misc

2016-07-19T07:27:29Z

Backmerge drm-next to be able to apply Chris' connector_unregister_all cleanup (need latest i915 and sun4i state for that). Also there's a trivial conflict in ttm_bo.c that git rerere fails to remember. Signed-off-by: Daniel Vetter