- 26 Mar, 2018 3 commits
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Daniel Vetter authored
It published the gem object to userspace, by that point other threads can guess the id and start using it. And gem IDs are _very_ easy to guess (it's just an idr). Since gem objects is the only thing we allow drivers to create themselves (all the kms/prime/syncobj stuff is handled by the core) no other functions seem to be in need of this clarification. Motivated by reviewing the xen-front kms driver. Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by:
Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180322080233.17266-1-daniel.vetter@ffwll.ch
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Arushi Singhal authored
It's better to use list_entry instead of list_{next/prev}_entry as it makes the code more clear to read. This patch replace list_entry with list_{next/prev}_entry. Signed-off-by:Arushi Singhal <arushisinghal19971997@gmail.com> Acked-by:
Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/1522000893-5331-3-git-send-email-arushisinghal19971997@gmail.com
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Arushi Singhal authored
It's better to use list_entry instead of list_{next/prev}_entry as it makes the code more clear to read. This patch replace list_entry with list_{next/prev}_entry. Signed-off-by:
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- 22 Mar, 2018 1 commit
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Haneen Mohammed authored
This patch remove the compatibility aliases drm_property_{reference/unreference}_blob of drm_property_blob_{get/put} since all callers have been converted to the prefered _{get/put}. Remove the helpers from the semantic patch drm-get-put-cocci. Signed-off-by:Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180320133749.GA11695@haneen-VirtualBox
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- 21 Mar, 2018 7 commits
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Sean Paul authored
Refresh -misc-next Signed-off-by: -
Santha Meena Ramamoorthy authored
Replace drm_gem_object_reference/unreference function with *_get/put() suffixes, because it is shorter and consistent with the kernel kref_get/put() functions. The following Coccinelle script was used: @@ expression e; @@ ( -drm_gem_object_reference(e); +drm_gem_object_get(e); | -drm_gem_object_unreference(e); +drm_gem_object_put(e); | -drm_gem_object_unreference_unlocked(e); +drm_gem_object_put_unlocked(e); ) Signed-off-by:
Santha Meena Ramamoorthy <santhameena13@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linuxDave Airlie authored
omapdrm patches for v4.17 * Fix sparse warnings from omapdrm * HPD support for DVI connector * Big cleanup to remove static variables * tag 'omapdrm-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (69 commits) drm/omap: fix compile error when DPI is disabled drm/omap: fix compile error when debugfs is disabled drm: omapdrm: displays: panel-dsi-cm: Fix field access before set drm/omap: cleanup color space conversion drm/omap: Allow HDMI audio setup even if we do not have video configured drm/omap: fix maximum sizes drm/omap: add writeback funcs to dispc_ops drm/omap: fix scaling limits for WB drm/omap: fix WB height with interlace drm/omap: fix WBDELAYCOUNT with interlace drm/omap: fix WBDELAYCOUNT for HDMI drm/omap: set WB channel-in in wb_setup() drm/omap: Add pclk setting case when channel is DSS_WB drm/omap: dispc: disp_wb_setup to check return code drm/omap: remove leftover enums dt-bindings: display: add HPD gpio to DVI connector drm/omap: add HPD support to connector-dvi drm/omap: Init fbdev emulation only when we have displays drm/omap: cleanup fbdev init/free drm/omap: fix omap_fbdev_free() when omap_fbdev_create() wasn't called ...
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git://people.freedesktop.org/~robclark/linuxDave Airlie authored
Updates for 4.17. Sorry, running a bit late on this, didn't have a chance to send pull-req before heading to linaro. But it has all been in linux-next for a while. Main updates: + DSI updates from 10nm / SDM845 + fix for race condition with a3xx/a4xx fence completion irq + some refactoring/prep work for eventual a6xx support (ie. when we have a userspace) + a5xx debugfs enhancements + some mdp5 fixes/cleanups to prepare for eventually merging writeback support (ie. when we have a userspace) * tag 'drm-msm-next-2018-03-20' of git://people.freedesktop.org/~robclark/linux: (36 commits) drm/msm: fix building without debugfs drm/msm/mdp5: don't pre-reserve LM's if no dual-dsi drm/msm/mdp5: add missing LM flush bits drm/msm/mdp5: print a bit more of the atomic state drm/msm/mdp5: rework CTL START signal handling drm/msm: Trigger fence completion from GPU drm/msm/dsi: fix direct caller of msm_gem_free_object() drm/msm: strip out msm_fence_cb drm/msm: rename mdp->disp drm/msm/dsi: Fix potential NULL pointer dereference in msm_dsi_modeset_init drm/msm/adreno/a5xx_debugfs: fix potential NULL pointer dereference drm/msm/dsi: Get byte_intf_clk only for versions that need it drm/msm/adreno: Use generic function to load firmware to a buffer object drm/msm/adreno: Define a list of firmware files to load per target drm/msm/adreno: Rename gpmufw to powerfw drm/msm: Pass the correct aperture end to drm_mm_init drm/msm/gpu: Set number of clocks to 0 if the list allocation fails drm/msm: Replace gem_object deprecated functions drm/msm/hdmi: fix semicolon.cocci warnings drm/msm/mdp5: Fix trailing semicolon ...
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git://anongit.freedesktop.org/tegra/linuxDave Airlie authored
drm/tegra: Changes for v4.17-rc1 This fixes mmap() for fbdev devices by providing a custom implementation based on the KMS variant. This is a fairly exotic case these days, hence why it is not flagged for stable. There is also support for dedicating one of the overlay planes to serve as a hardware cursor on older Tegra that did support hardware cursors but not RGBA formats for it. Planes will now also export the IN_FORMATS property by supporting the various block-linear tiling modifiers for RGBA pixel formats. Other than that, there's a bit of cleanup of DMA API abuse, use of the private object infrastructure for global state (rather than subclassing atomic state objects) and an implementation of ->{begin,end}_cpu_access callbacks for PRIME exported buffers, which allow users to perform cache maintenance on these buffers. * tag 'drm/tegra/for-4.17-rc1' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: prime: Implement ->{begin,end}_cpu_access() drm/tegra: gem: Map pages via the DMA API drm/tegra: hub: Use private object for global state drm/tegra: fb: Properly support linear modifier drm/tegra: plane: Support format modifiers drm/tegra: dc: Dedicate overlay plane to cursor on older Tegra's drm/tegra: plane: Make tegra_plane_get_overlap_index() static drm/tegra: fb: Implement ->fb_mmap() callback drm/tegra: gem: Make __tegra_gem_mmap() available more widely drm/tegra: gem: Reshuffle declarations -
git://linux-arm.org/linux-ldDave Airlie authored
I have accumulated some patches as we went through some internal testing for mali-dp and I was waiting for the YUV2RGB patches to land in your tree. * 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld: drm: mali-dp: Add YUV->RGB conversion support for video layers drm: mali-dp: Turn off CRTC vblank when removing module. drm: arm: malidp: Use drm_atomic_helper_shutdown() to disable planes on removal drm: arm: malidp: Don't destroy planes manually in error handlers drm/mali-dp: Fix malidp_atomic_commit_hw_done() for event sending. drm/arm/malidp: Disable pixel alpha blending for colors that do not have alpha drm: mali-dp: Fix bug on scaling with rotation drm/mali-dp: Don't enable scaling engine for planes that only rotate. drm: mali-dp: Uninitialized variable in malidp_se_check_scaling() drm/mali-dp: Align pitch size to be multiple of bus burst read size. drm/mali-dp: Rotated planes need a larger pitch size.
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
- Continued cleanup and restructuring of powerplay - Fetch VRAM type from vbios rather than hardcoding for SOC15 asics - Allow ttm to drop its backing store when drivers don't need it - DC bandwidth calc updates - Enable DC backlight control pre-DCE11 asics - Enable DC on all supported asics - DC Fixes for planes due to the way our hw is ordered vs what drm expects - DC CTM/regamma fixes - Misc cleanup and bug fixes * 'drm-next-4.17' of git://people.freedesktop.org/~agd5f/linux: (89 commits) amdgpu/dm: Default PRE_VEGA ASIC support to 'y' drm/amd/pp: Remove the cgs wrapper for notify smu version on APU drm/amd/display: fix dereferencing possible ERR_PTR() drm/amd/display: Refine disable VGA drm/amdgpu: Improve documentation of bo_ptr in amdgpu_bo_create_kernel drm/radeon: Don't turn off DP sink when disconnected drm/amd/pp: Rename file name cz_* to smu8_* drm/amd/pp: Replace function/struct name cz_* with smu8_* drm/amd/pp: Remove unneeded void * casts in cz_hwmgr.c/cz_smumgr.c drm/amd/pp: Mv cz uvd/vce pg/dpm functions to cz_hwmgr.c drm/amd/pp: Remove dead header file pp_asicblocks.h drm/amd/pp: Delete dead code on cz_clockpowergating.c drm/amdgpu: Call amdgpu_ucode_fini_bo in amd_powerplay.c drm/amdgpu: Remove wrapper layer of smu ip functions drm/amdgpu: Don't compared ip_block_type with ip_block_index drm/amdgpu: Plus NULL function pointer check drm/amd/pp: Move helper functions to smu_help.c drm/amd/pp: Replace rv_* with smu10_* drm/amd/pp: Fix function parameter not correct drm/amd/pp: Add rv_copy_table_from/to_smc to smu backend function table ...
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- 20 Mar, 2018 1 commit
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Wei Yongjun authored
platform_get_resource_byname() may fail and return NULL, so we should better check it's return value to avoid a NULL pointer dereference a bit later in the code. This is detected by Coccinelle semantic patch. @@ expression pdev, res, n, t, e, e1, e2; @@ res = platform_get_resource_byname(pdev, t, n); + if (!res) + return -EINVAL; ... when != res == NULL e = devm_ioremap(e1, res->start, e2); Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Acked-by:
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- 19 Mar, 2018 23 commits
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Maxime Ripard authored
Now that we have the guarantee that we will have only a single YUV plane, actually support them. The way it works is not really straightforward, since we first need to enable the YUV mode in the plane that we want to setup, and then we have a few registers to setup the YUV buffer and parameters. We also need to setup the color correction to actually have something displayed. Reviewed-by:
Chen-Yu Tsai <wens@csie.org> Signed-off-by:
Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/66088c1398bd3189123f28a89a7ccc669fe9f296.1519931807.git-series.maxime.ripard@bootlin.com
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Maxime Ripard authored
Just like for the frontend, a single plane can use a YUV format. Make sure we have that constraint covered in our atomic_check. This is preliminary to the actual YUV support to make sure we don't end up in an impossible to support situation. Reviewed-by:
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Chen-Yu Tsai authored
This patch adds support for the compatible strings of the A80 display pipeline. Signed-off-by:
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Chen-Yu Tsai authored
This patch adds compatible strings for the remaining documented components of the Allwinner A80 display pipeline. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Chen-Yu Tsai authored
The Allwinner A80 SoC has 2 documented TCONs. The display pipeline diagram from the user manual shows a third TCON, but it's missing an interrupt line, and its registers are not explained either. It's also not used in Allwinner's vendor BSP. The first TCON only has channel 0, for LCD panel output. The TCON hardware setup is peculiar in that the eDP reset must also be deasserted to allow access to the TCON. How the eDP module is wired in the SoC itself is never explained. The second TCON only has channel 1, and its output is connected to the HDMI encoder block. This patch adds a "needs_edp_reset" field to the tcon quirks structure, and adds quirks and compatible strings for the 2 documented TCONs. Signed-off-by:
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Chen-Yu Tsai authored
The display pipeline on the A80 SoC has what is called the Detail Enhancement Unit, or DEU for short, block in between the display frontend and backend. This unit can sharpen images in both luma and chroma channels. It seems to also do colorspace conversion. This patch adds the device tree binding for this hardware block. Reviewed-by:
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Chen-Yu Tsai authored
The A80 has 2 or 3 TCONs. The documentation and vendor kernel are very vague about the third TCON, to the point that it might not exist. In the documentation, the first TCON is missing channel 1, and the second is missing channel 0. However the vendor kernel seems to be able to use them regardless. Here we model them like the old TCONs. An oddity is that TCON0 requires the reset control for the eDP block to be deasserted, for any register access to stick. This patch adds compatible strings for TCON0 and TCON1, with TCON0 requiring an extra "edp" reset control. Reviewed-by:
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Joe Perches authored
These macros are similar to the DRM_<LEVEL> with the addition of a struct device * to the arguments. Convert the single drm_dev_printk function into 2 separate functions. drm_dev_printk with a KERN_<LEVEL> * for generic use and drm_dev_dbg for conditional masked use. Remove the __func__ argument and use __builtin_return_address(0) to be similar to the DRM_<LEVEL> macros uses. Convert the DRM_DEV_<LEVEL> macros to remove now unnecessary arguments and use a consistent style. These macros are rarely used in the generic gpu/drm code so the code size does not change much for a defconfig, but when more drivers are enabled, there is ~4k savings. Many of these macros have no existing use at all. $ size -t drivers/gpu/drm/built-in.a | tail -1 1877530 44651 995 1923176 1d5868 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 1877527 44651 995 1923173 1d5865 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 17166750 2689238 108352 19964340 130a1b4 (TOTALS) $ size -t drivers/gpu/drm/built-in.a | tail -1 17168888 2691734 108352 19968974 130b3ce (TOTALS) Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Daniel Vetter authored
We have quite a few driver docs now, which is great, but having them all in the top-level gpu documentation chapter makes it harder to spot the core/shared bits. Stuff them into a separate chapter and ecourage people to add even more! Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Paul McQuade authored
Fix a couple of checkpatch issues Signed-off-by:
Paul McQuade <paulmcquad@gmail.com> [seanpaul squashed series of 4 into one patch, and changed commit msg] Signed-off-by:
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Haneen Mohammed authored
This patch remove the compatibility aliases drm_mode_object_{reference/unreference} of drm_mode_object_{get/put} since all callers have been converted to the prefered _{get/put}. Remove the helpers from the semantic patch drm-get-put-cocci. Signed-off-by: -
Arnd Bergmann authored
The adreno driver stopped building when CONFIG_DEBUGFS is disabled: drivers/gpu/drm/msm/adreno/adreno_device.c: In function 'adreno_load_gpu': drivers/gpu/drm/msm/adreno/adreno_device.c:153:16: error: 'const struct msm_gpu_funcs' has no member named 'debugfs_init' if (gpu->funcs->debugfs_init) { ^~ drivers/gpu/drm/msm/adreno/adreno_device.c:154:13: error: 'const struct msm_gpu_funcs' has no member named 'debugfs_init' gpu->funcs->debugfs_init(gpu, dev->primary); ^~ This adds an #ifdef around the code that references the hidden pointer. Fixes: 331dc0bc ("drm/msm: add a5xx specific debugfs") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Rob Clark <robdclark@gmail.com>
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Rob Clark authored
If there is only a single DSI interface, don't reserve the first two layer-mixers for the dual-DSI use-case. This was causing problems for WB, not being able to assign a LM, on 8x16, which has only two LM's and a single DSI. Signed-off-by: -
Rob Clark authored
For some reason, layer-mixer 3 and 4 were missing. LM3 is used for writeback on 8x16. Signed-off-by: -
Rob Clark authored
Signed-off-by: -
Rob Clark authored
For DSI cmd-mode and writeback, we need to write the CTL's START register to kick things off, but we only want to do that once both the encoder and the crtc have a chance to write their corresponding flush bits. The difficulty is that when there is a full modeset (ie. encoder state has changed) we want to defer the start until encoder->enable(). But if only plane's have changed, we want to do this from crtc->commit(). The start_mask was a previous attempt to handle this, but it didn't really do the right thing since atomic conversion. Instead track in the crtc state that the start should be deferred, set to try from encoder's (or in future writeback's) atomic_check(). This way the state is part of the atomic state, and rollback can work properly if an atomic test fails. Signed-off-by: -
Bjorn Andersson authored
Interrupt commands causes the CP to trigger an interrupt as the command is processed, regardless of the GPU being done processing previous commands. This is seen by the interrupt being delivered before the fence is written on 8974 and is likely the cause of the additional CP_WAIT_FOR_IDLE workaround found for a306, which would cause the CP to wait for the GPU to go idle before triggering the interrupt. Instead we can set the (undocumented) BIT(31) of the CACHE_FLUSH_TS which will cause a special CACHE_FLUSH_TS interrupt to be triggered from the GPU as the write event is processed. Add CACHE_FLUSH_TS to the IRQ masks of A3xx and A4xx and remove the workaround for A306. Suggested-by:
Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by:
Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by:
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Rob Clark authored
This should be using drm_gem_object_put(). Also since this is done only in driver unload path, we don't need to synchronize setting tx_gem_obj to NULL, so juse use the _unlocked() variant. Signed-off-by: -
Rob Clark authored
Remnants of pre-dma_fence fencing which got left behind by mistake. Signed-off-by: -
Rob Clark authored
Since new display controller is called "dpu" instead of "mdp". Lets make the name of the toplevel directory for the display controllers a bit more generic. Signed-off-by:
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Gustavo A. R. Silva authored
_dev_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _dev_ has been null checked. Fixes: d4e7f38d70ef ("drm/msm/dsi: check msm_dsi and dsi pointers before use") Signed-off-by:Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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Gustavo A. R. Silva authored
_minor_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _minor_ has been null checked. Fixes: 024ad8df763f ("drm/msm: add a5xx specific debugfs") Signed-off-by: -
José Roberto de Souza authored
eDP 1.4a specification defines PSR version 3, it PSR2 with the addition of Y-coordinate support when doing selective update. Signed-off-by:
José Roberto de Souza <jose.souza@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180317013828.24182-1-jose.souza@intel.com
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- 16 Mar, 2018 5 commits
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Thierry Reding authored
These callbacks allow the exporter to swap in and pin the backing storage for buffers as well as invalidate the cache in preparation for accessing the buffer from the CPU, and flush the cache and unpin the backing storage when the CPU is done modifying the buffer. Signed-off-by:Thierry Reding <treding@nvidia.com>
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Thierry Reding authored
When allocating pages, map them with the DMA API in order to invalidate caches. This is the correct usage of the API and works just as well as faking up the SG table and using the dma_sync_sg_for_device() function. Signed-off-by: -
Thierry Reding authored
Rather than subclass the global atomic state to store the hub display clock and rate, create a private object and store this data in its state. Signed-off-by: -
Gustavo A. R. Silva authored
In preparation to enabling -Wvla, remove VLA. In this particular case use macro ARRAY_SIZE so the length of array _bo_ can be computed at preprocessing time. The use of stack Variable Length Arrays needs to be avoided, as they can be a vector for stack exhaustion, which can be both a runtime bug or a security flaw. Also, in general, as code evolves it is easy to lose track of how big a VLA can get. Thus, we can end up having runtime failures that are hard to debug. Also, fixed as part of the directive to remove all VLAs from the kernel: https://lkml.org/lkml/2018/3/7/621Signed-off-by:
Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by:
Eric Anholt <eric@anholt.net> Reviewed-by:
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Harry Wentland authored
Even though we default PRE_VEGA support to 'n' upstream in amd-staging we want to keep it enabled by default. Signed-off-by:
Harry Wentland <harry.wentland@amd.com> Reviewed-by:
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