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2014-12-24Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"Dave Airlie1-7/+0
This reverts commit 355a70183848f21198e9f6296bd646df3478a26d. This had some bad side effects under normal operation, and should have been dropped earlier. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-17drm/irq: Add drm_crtc_vblank_count()Thierry Reding1-0/+1
This function is the KMS native variant of drm_vblank_count(). It takes a struct drm_crtc * instead of a struct drm_device * and an index of the CRTC. Eventually the goal is to access vblank data through the CRTC only so that the per-CRTC data can be moved to struct drm_crtc. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-12-17drm/irq: Add drm_crtc_handle_vblank()Thierry Reding1-0/+1
This function is the KMS native variant of drm_handle_vblank(). It takes a struct drm_crtc * instead of a struct drm_device * and an index of the CRTC. Eventually the goal is to access vblank data through the CRTC only so that the per-CRTC data can be moved to struct drm_crtc. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-12-17drm/irq: Add drm_crtc_send_vblank_event()Thierry Reding1-0/+2
This function is the KMS native variant of drm_send_vblank_event(). It takes a struct drm_crtc * instead of a struct drm_device * and an index of the CRTC. Eventually the goal is to access vblank data through the CRTC only so that the per-CRTC data can be moved to struct drm_crtc. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-12-09drm/fb: add support for tiled monitor configurations. (v2)Dave Airlie1-0/+6
This adds fbdev/con support for tiled monitors, so that we only set a mode on the correct half of the monitor, or span the two halves if needed. v2: remove unneeded ERROR, fix | vs || Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-09drm/tile: expose the tile property to userspace (v3)Dave Airlie1-0/+4
This takes the tiling info from the connector and exposes it to userspace, as a blob object in a connector property. The contents of the blob is ABI. v2: add property + function documentation. v3: move property setup from previous patch. add boilerplate + fix long line (Daniel) Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-09drm/connector: store tile information from displayid (v3)Dave Airlie1-0/+18
This creates a tile group from DisplayID block, and stores the pieces of parsed info from the DisplayID block into the connector. v2: add missing signoff, add new connector bits to docs. v3: remove some debugging. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-09drm/mst: cached EDID for logical ports (v2)Dave Airlie1-1/+3
Logical ports are never going to have EDID changes, they are used for the internal ports on MST monitors. We cache the EDIDs from these to save time at MST probe. v2: drop misplace tile property line, meant for other patch. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-09drm: add tile_group support. (v3)Dave Airlie1-0/+16
A tile group is an identifier shared by a single monitor, DisplayID topology has 8 bytes we can use for this, just use those for now until something else comes up in the future. We assign these to an idr and use the idr to tell userspace what connectors are in the same tile group. DisplayID v1.3 says the serial number must be unique for displays from the same manufacturer. v2: destroy idr (dvdhrm) add docbook (danvet) airlied:- not sure how to make docbook add fns to tile group section. v3: fix missing unlock. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-09drm/displayid: add displayid defines and edid extension (v2)Dave Airlie2-0/+78
These are just taken from the DisplayID v1.3 spec, and the DDC spec. v2: use __packed (Jani) Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-03drm/ttm: optionally move duplicates to a separate listChristian König1-1/+8
This patch adds an optional list_head parameter to ttm_eu_reserve_buffers. If specified duplicates in the execbuf list are no longer reported as errors, but moved to this list instead. Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-12-02Merge tag 'topic/core-stuff-2014-11-28' of ↵Dave Airlie5-7/+61
git://anongit.freedesktop.org/drm-intel into drm-next So here's a pile of atomic fixes and improvements from various people. There's still more patches in-flight, so I think I'll keep collecting them in a separate branch. * tag 'topic/core-stuff-2014-11-28' of git://anongit.freedesktop.org/drm-intel: drm/atomic: clear plane's CRTC and FB when shutting down drm: Handle atomic state properly in kms getfoo ioctl drm: use mode_object_find helpers drm: fix indentation drm/msm: switch to atomic-helpers iterator macros drm/atomic: add plane iterator macros drm/atomic: track bitmask of planes attached to crtc drm: Free atomic state during cleanup drm: Make drm_atomic.h standalone includible drm: Make drm_atomic_helper.h standalone includible drm/plane: Add missing kerneldoc drm/plane: Pass old state to ->atomic_update() drm/atomic_helper: Cope with plane->crtc == NULL in disable helper drm/atomic: Drop per-plane locking TODO drm/atomic-helper: Skip vblank waits for unchanged fbs drm: Document that drm_dev_alloc doesn't need a parent
2014-11-27drm: fix indentationRob Clark1-1/+1
Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-27drm/atomic: add plane iterator macrosRob Clark2-0/+37
Add helper macros to iterate the current, or incoming set of planes attached to a crtc. These helpers are only available for drivers converted to use atomic-helpers. Signed-off-by: Rob Clark <robdclark@gmail.com> [danvet: Squash in fixup from Rob to move the planemask iterator to drm_crtc.h and document it. That one is needed by the atomic ioctl so can't be in a helper library.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-27drm/atomic: track bitmask of planes attached to crtcRob Clark2-5/+13
Chasing plane->state->crtc of planes that are *not* part of the same atomic update is racy, making it incredibly awkward (or impossible) to do something simple like iterate over all planes and figure out which ones are attached to a crtc. Solve this by adding a bitmask of currently attached planes in the crtc-state. Note that the transitional helpers do not maintain the plane_mask. But they only support the legacy ioctls, which have sufficient brute-force locking around plane updates that they can continue to loop over all planes to see what is attached to a crtc the old way. Signed-off-by: Rob Clark <robdclark@gmail.com> [danvet: - Drop comments about locking in set_crtc_for_plane since they're a bit misleading - we already should hold lock for the current crtc. - Also WARN_ON if get_state on the old crtc fails since that should have been done already. - Squash in fixup to check get_plane_state return value, reported by Dan Carpenter and acked by Rob Clark.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-26drm: Decouple EDID parsing from I2C adapterLars-Peter Clausen1-0/+5
The drm_get_edid() function performs direct I2C accesses to read EDID blocks, assuming that the monitor DDC interface is directly connected to the I2C bus. It can't thus be used with HDMI encoders that control the DDC bus and expose EDID blocks through a different interface. Refactor drm_do_get_edid() to take a block read callback function instead of an I2C adapter, and export it for direct use by drivers. As in the general case the DDC bus is accessible by the kernel at the I2C level, drivers must make all reasonable efforts to expose it as an I2C adapter and use drm_get_edid() instead of abusing this function. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-25drm: Make drm_atomic.h standalone includibleThierry Reding1-0/+2
This header file makes use of a bunch of structures declared in the drm_crtc.h header file. Include that to make sure the drm_atomic.h header can be included standalone. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-25drm: Make drm_atomic_helper.h standalone includibleThierry Reding1-0/+2
This header uses a bunch of declarations from the drm/drm_crtc.h header, so make sure to include that as well so that drm_atomic_helper.h can be included standalone. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-25drm/plane: Add missing kerneldocThierry Reding1-0/+4
The plane helpers aren't pulled into the DocBook yet, so these weren't noticed. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-25drm/plane: Pass old state to ->atomic_update()Thierry Reding1-1/+2
In most situations it will be useful to have the old state passed to the ->atomic_update() callback. For example if a plane is being disabled the new state's .crtc field will be NULL, but some drivers may rely on this field to program the CRTCs registers. v2: rename variable to old_plane_state and remove redundant comment as suggested by Daniel Vetter, remove an Exynos hunk that doesn't apply to drm-next and add a hunk for pending MSM mdp5 changes Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-11-21drm/gem: Warn on illegal use of the dumb buffer interface v2Thomas Hellstrom1-0/+7
It happens on occasion that developers of generic user-space applications abuse the dumb buffer API to get hold of drm buffers that they can both mmap() and use for GPU acceleration, using the assumptions that dumb buffers and buffers available for GPU are a) The same type and can be aribtrarily type-casted. b) fully coherent. This patch makes the most widely used drivers warn nicely when that happens, the next step will be to fail. v2: Move drmP.h changes to drm_gem.h. Fix Radeon dumb mmap breakage. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-20drm: s/enum_blob_list/enum_list/ in drm_propertyDaniel Vetter1-1/+1
I guess for hysterical raisins this was meant to be the way to read blob properties. But that's done with the two-stage approach which uses separate blob kms object and the special-purpose get_blob ioctl. Shipping userspace seems to have never relied on this, and the kernel also never put any blob thing onto that property. And nowadays it would blow up, e.g. in drm_property_destroy. Also it makes no sense to return values in an ioctl that only returns metadata about everything. So let's ditch all the internal code for the blob list, rename the list to be unambiguous and sprinkle comments all over the place to explain this peculiar piece of api. v2: Squash in fixup from Rob to remove now unused variables. Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-20drm/atomic: Don't overrun the connector array when hotpluggingDaniel Vetter1-0/+2
Yet another fallout from not considering DP MST hotplug. With the previous patches we have stable indices, but it might still happen that a connector gets added between when we allocate the array and when we actually add a connector. Especially when we back off due to ww mutex contention or similar issues. So store the sizes of the arrays in struct drm_atomic_state and double check them. We don't really care about races except that we want to use a consistent value, so ACCESS_ONCE is all we need. And if we indeed notice that we'd overrun the array then just give up and restart the entire ioctl. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15Merge tag 'drm/gem-cma/for-3.19-rc1' of ↵Dave Airlie1-8/+22
git://people.freedesktop.org/~tagr/linux into drm-next drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input Some drivers erroneously treat the .pitch and .size fields of struct drm_mode_create_dumb as inputs. While the include/uapi/drm/drm_mode.h header has a comment denoting them as outputs, that seemingly wasn't enough to make drivers use them properly. The result is that some userspace doesn't explicitly zero out those fields, assuming that the kernel won't use them. That causes problems since the data within the structure might be uninitialized, so bogus data may end up confusing drivers (ridiculously large values for the pitch, ...). This series attempts to improve the situation by fixing all drivers to not use the output fields. Furthermore to spare new drivers this bad surprise, the DRM core now zeros out these fields prior to handing the data structure to the driver. Lessons learned from this are that future IOCTLs should be properly documented (in the DRM DocBook for example) and should be rigorously defined. To prevent misuse like this, userspace should be required to zero out all output fields. The kernel should check for this and fail if that's not the case. * tag 'drm/gem-cma/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: drm/cma: Remove call to drm_gem_free_mmap_offset() drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input drm/rcar: gem: dumb: pitch is an output drm/omap: gem: dumb: pitch is an output drm/cma: Introduce drm_gem_cma_dumb_create_internal() drm/doc: Add GEM/CMA helpers to kerneldoc drm/doc: mm: Fix indentation drm/gem: Fix a few kerneldoc typos
2014-11-15drm: add properties for suggested x/y offset for connectors. (v2)Dave Airlie1-0/+5
Virtual GPUs would like to give the guest some indication where on the screen the outputs are layed out. So far we only provide modes, these properties could be exposed to userspace so the desktop environment could use them as hints to set the correct offsets. v2: rename properties to be more consistent. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15Merge tag 'drm/fixes/for-3.19-rc1' of ↵Dave Airlie3-7/+23
git://people.freedesktop.org/~tagr/linux into drm-next drm: Miscellaneous fixes for v3.19-rc1 This is a small collection of fixes that I've been carrying around for a while now. Many of these have been posted and reviewed or acked. The few that haven't I deemed too trivial to bother. * tag 'drm/fixes/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: video/hdmi: Relicense header under MIT license drm/gma500: mdfld: Reuse video/mipi_display.h drm: Make drm_mode_create_tv_properties() signature consistent drm: Implement drm_get_pci_dev() dummy for !PCI drm/prime: Use unsigned type for number of pages drm/gem: Fix typo in kerneldoc drm: Use const data when creating blob properties drm: Use size_t for blob property sizes
2014-11-15Merge tag 'drm/panel/for-3.19-rc1' of ↵Dave Airlie1-6/+88
git://people.freedesktop.org/~tagr/linux into drm-next drm/panel: Changes for v3.19-rc1 This contains support for a couple of new panels, updates for some GPIO API changes and a bunch of updates to the MIPI DSI support that should make it easier to write panel drivers in the future. * tag 'drm/panel/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: (31 commits) drm/panel: Add Sharp LQ101R1SX01 support drm/dsi: Do not require .owner field to be set drm/dsi: Resolve MIPI DSI device from phandle drm/dsi: Implement DCS set_{column,page}_address commands drm/dsi: Implement DCS {get,set}_pixel_format commands drm/dsi: Implement DCS get_power_mode command drm/dsi: Implement DCS soft_reset command drm/dsi: Implement DCS nop command drm/dsi: Add to DocBook documentation drm/dsi: Implement some standard DCS commands drm/dsi: Implement generic read and write commands drm/panel: s6e8aa0: Use standard MIPI DSI function drm/dsi: Add mipi_dsi_set_maximum_return_packet_size() helper drm/dsi: Constify mipi_dsi_msg drm/dsi: Make mipi_dsi_dcs_{read,write}() symmetrical drm/dsi: Add DSI transfer helper drm/dsi: Add message to packet translator drm/dsi: Introduce packet format helpers drm/panel: s6e8aa0: Fix build warnings on 64-bit drm/panel: ld9040: Fix build warnings on 64-bit ...
2014-11-15drm: flip-work: change drm_flip_work_init prototypeBoris BREZILLON1-1/+1
Now that we're using lists instead of kfifo to store drm flip-work tasks we do not need the size parameter passed to drm_flip_work_init function anymore. Moreover this function cannot fail anymore, we can thus remove the return code. Modify drm_flip_work_init users to take account of these changes. [airlied: fixed two unused variable warnings] Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-15drm: rework flip-work helpers to avoid calling func when the FIFO is fullBoris BREZILLON1-8/+23
Make use of lists instead of kfifo in order to dynamically allocate task entry when someone require some delayed work, and thus preventing drm_flip_work_queue from directly calling func instead of queuing this call. This allow drm_flip_work_queue to be safely called even within irq handlers. Add new helper functions to allocate a flip work task and queue it when needed. This prevents allocating data within irq context (which might impact the time spent in the irq handler). Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-13drm/dsi: Do not require .owner field to be setThierry Reding1-1/+5
Drivers now no longer need to set the .owner field. It will be automatically set at registration time. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Resolve MIPI DSI device from phandleThierry Reding1-0/+1
Add a function, of_find_mipi_dsi_device_by_node(), that can be used to resolve a phandle to a MIPI DSI device. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement DCS set_{column,page}_address commandsThierry Reding1-0/+4
Provide small convenience wrappers to set the column and page extents of the frame memory accessed by the host processors. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement DCS {get,set}_pixel_format commandsThierry Reding1-0/+2
Provide small convenience wrappers to query or set the pixel format used by the interface. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement DCS get_power_mode commandThierry Reding1-0/+7
Provide a small convenience wrapper that transmits a DCS get_power_mode command. A set of bitmasks for the mode bits is also provided. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement DCS soft_reset commandThierry Reding1-0/+1
Provide a small convenience wrapper that transmits a DCS soft_reset command. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement DCS nop commandThierry Reding1-0/+1
Provide a small convenience wrapper that transmits a DCS nop command. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Add to DocBook documentationThierry Reding1-2/+14
Integrate the MIPI DSI helpers into DocBook and clean up various kerneldoc warnings. Also add a brief DOC section and clarify some aspects of the mipi_dsi_host struct's .transfer() operation. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement some standard DCS commandsYoungJun Cho1-0/+19
Add helpers for the {enter,exit}_sleep_mode, set_display_{on,off} and set_tear_{on,off} DCS commands. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> [treding: kerneldoc and other minor cleanup] Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Implement generic read and write commandsThierry Reding1-0/+6
Implement generic read and write commands. Selection of the proper data type for packets is done automatically based on the number of parameters or payload length. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Add mipi_dsi_set_maximum_return_packet_size() helperYoungJun Cho1-0/+2
This function can be used to set the maximum return packet size for a MIPI DSI peripheral. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> [treding: endianess, kerneldoc, return value] Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Constify mipi_dsi_msgThierry Reding1-1/+1
struct mipi_dsi_msg is a read-only structure, drivers should never need to modify it. Make this explicit by making all references to the struct const. Acked-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Make mipi_dsi_dcs_{read,write}() symmetricalThierry Reding1-2/+4
Currently the mipi_dsi_dcs_write() function requires the DCS command byte to be embedded within the write buffer whereas mipi_dsi_dcs_read() has a separate parameter. Make them more symmetrical by adding an extra command parameter to mipi_dsi_dcs_write(). The S6E8AA0 driver relies on the old asymmetric API and there's concern that moving to the new API may be less efficient. Provide a new function with the old semantics for those cases and make the S6E8AA0 driver use it instead. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Add message to packet translatorThierry Reding1-0/+18
This commit introduces a new function, mipi_dsi_create_packet(), which converts from a MIPI DSI message to a MIPI DSI packet. The MIPI DSI packet is as close to the protocol described in the DSI specification as possible and useful in drivers that need to write a DSI packet into a FIFO to send a message off to the peripheral. Suggested-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/dsi: Introduce packet format helpersThierry Reding1-0/+3
Add two helpers, mipi_dsi_packet_format_is_{short,long}(), that help in determining the format of a packet. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/cma: Introduce drm_gem_cma_dumb_create_internal()Thierry Reding1-0/+5
This function is similar to drm_gem_cma_dumb_create() but targetted at kernel internal users so that they can override the pitch and size requirements of the dumb buffer. It is important to make this difference because the IOCTL says that the pitch and size fields are to be considered outputs and therefore should not be used in computations of the framebuffer size. Internal users may still want to use this code to avoid duplication and at the same time pass on additional, driver-specific restrictions on the pitch and size. While at it, convert the R-Car DU driver, the single user that overrides the pitch, to use the new internal helper. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/doc: Add GEM/CMA helpers to kerneldocThierry Reding1-8/+17
Most of the functions already have the beginnings of kerneldoc comments but are using the wrong opening marker. Use the correct opening marker and flesh out the comments so that they can be integrated with the DRM DocBook document. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm: Make drm_mode_create_tv_properties() signature consistentThierry Reding1-2/+3
The prototype and the function implementation differ in their signature. Make them consistent and use an unsigned integer for the number of modes while at it. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm: Implement drm_get_pci_dev() dummy for !PCIThierry Reding1-0/+15
Implementing a dummy of this function allows drivers that use it to be built on platforms that don't have PCI. This can happen for example if the nouveau driver is built on Tegra without PCI enabled (or on 64-bit ARM where PCI is not yet implemented). Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm/prime: Use unsigned type for number of pagesThierry Reding1-1/+1
The number of pages can never be negative, so an unsigned type is enough. This also matches the type of the n_pages argument of the sg_alloc_table_from_pages() function. Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-11-13drm: Use const data when creating blob propertiesThierry Reding2-3/+3
Creating a blob property will always copy the input data so the data that is passed in can be const. Signed-off-by: Thierry Reding <treding@nvidia.com>
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