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2017-11-15Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.15. Core: - Atomic object lifetime fixes - Atomic iterator improvements - Sparse/smatch fixes - Legacy kms ioctls to be interruptible - EDID override improvements - fb/gem helper cleanups - Simple outreachy patches - Documentation improvements - Fix dma-buf rcu races - DRM mode object leasing for improving VR use cases. - vgaarb improvements for non-x86 platforms. New driver: - tve200: Faraday Technology TVE200 block. This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in the StorLink SL3516 (later Cortina Systems CS3516) as well as the Grain Media GM8180. New bridges: - SiI9234 support New panels: - S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba LT089AC19000, Innolux AT043TN24 i915: - Remove Coffeelake from alpha support - Cannonlake workarounds - Infoframe refactoring for DisplayPort - VBT updates - DisplayPort vswing/emph/buffer translation refactoring - CCS fixes - Restore GPU clock boost on missed vblanks - Scatter list updates for userptr allocations - Gen9+ transition watermarks - Display IPC (Isochronous Priority Control) - Private PAT management - GVT: improved error handling and pci config sanitizing - Execlist refactoring - Transparent Huge Page support - User defined priorities support - HuC/GuC firmware refactoring - DP MST fixes - eDP power sequencing fixes - Use RCU instead of stop_machine - PSR state tracking support - Eviction fixes - BDW DP aux channel timeout fixes - LSPCON fixes - Cannonlake PLL fixes amdgpu: - Per VM BO support - Powerplay cleanups - CI powerplay support - PASID mgr for kfd - SR-IOV fixes - initial GPU reset for vega10 - Prime mmap support - TTM updates - Clock query interface for Raven - Fence to handle ioctl - UVD encode ring support on Polaris - Transparent huge page DMA support - Compute LRU pipe tweaks - BO flag to allow buffers to opt out of implicit sync - CTX priority setting API - VRAM lost infrastructure plumbing qxl: - fix flicker since atomic rework amdkfd: - Further improvements from internal AMD tree - Usermode events - Drop radeon support nouveau: - Pascal temperature sensor support - Improved BAR2 handling - MMU rework to support Pascal MMU exynos: - Improved HDMI/mixer support - HDMI audio interface support tegra: - Prep work for tegra186 - Cleanup/fixes msm: - Preemption support for a5xx - Display fixes for 8x96 (snapdragon 820) - Async cursor plane fixes - FW loading rework - GPU debugging improvements vc4: - Prep for DSI panels - fix T-format tiling scanout - New madvise ioctl Rockchip: - LVDS support omapdrm: - omap4 HDMI CEC support etnaviv: - GPU performance counters groundwork sun4i: - refactor driver load + TCON backend - HDMI improvements - A31 support - Misc fixes udl: - Probe/EDID read fixes. tilcdc: - Misc fixes. pl111: - Support more variants adv7511: - Improve EDID handling. - HDMI CEC support sii8620: - Add remote control support" * tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits) drm/rockchip: analogix_dp: Use mutex rather than spinlock drm/mode_object: fix documentation for object lookups. drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU drm/i915: Move init_clock_gating() back to where it was drm/i915: Prune the reservation shared fence array drm/i915: Idle the GPU before shinking everything drm/i915: Lock llist_del_first() vs llist_del_all() drm/i915: Calculate ironlake intermediate watermarks correctly, v2. drm/i915: Disable lazy PPGTT page table optimization for vGPU drm/i915/execlists: Remove the priority "optimisation" drm/i915: Filter out spurious execlists context-switch interrupts drm/amdgpu: use irq-safe lock for kiq->ring_lock drm/amdgpu: bypass lru touch for KIQ ring submission drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories() drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs() drm/amd/powerplay: initialize a variable before using it drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug drm/rockchip: add CONFIG_OF dependency for lvds ...
2017-11-03drm/vc4: Fix wrong printk format in vc4_bo_stats_debugfs()Boris BREZILLON
vc4->purgeable.size and vc4->purgeable.purged_size are size_t fields and should be printed with a %zd specifier. Fixes: b9f19259b84d ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl") Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20171101095731.14878-1-boris.brezillon@free-electrons.com (cherry picked from commit 50f365cde4ffb5ae70c3f02384bbb46698aba65c) Signed-off-by: Eric Anholt <eric@anholt.net>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-19drm/vc4: Fix sleeps during the IRQ handler for DSI transactions.Eric Anholt
VC4's DSI1 has a bug where the AXI connection is broken for 32-bit writes from the CPU, so we use the DMA engine to DMA 32-bit values into registers instead. That sleeps, so we can't do it from the top half. As a solution, use an interrupt thread so that all our writes happen when sleeping is is allowed. v2: Use IRQF_ONESHOT (suggested by Boris) v3: Style nitpicks. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20171014001255.32005-1-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> (v2)
2017-10-19drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctlBoris Brezillon
This ioctl will allow us to purge inactive userspace buffers when the system is running out of contiguous memory. For now, the purge logic is rather dumb in that it does not try to release only the amount of BO needed to meet the last CMA alloc request but instead purges all objects placed in the purgeable pool as soon as we experience a CMA allocation failure. Note that the in-kernel BO cache is always purged before the purgeable cache because those objects are known to be unused while objects marked as purgeable by a userspace application/library might have to be restored when they are marked back as unpurgeable, which can be expensive. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20171019125748.3152-1-boris.brezillon@free-electrons.com
2017-10-13drm/vc4: Fix pitch setup for T-format scanout.Eric Anholt
The documentation said to use src_w here, and I didn't consider that we actually needed to be using pitch somewhere in our setup. Fixes scanout on my DSI panel when X11 does initial setup with 1920x1080 HDMI and 800x480 DSI both at 0,0 of the same framebuffer. v2: Add some comments requested by Boris Signed-off-by: Eric Anholt <eric@anholt.net> Fixes: 98830d91da08 ("drm/vc4: Add T-format scanout support.") Link: https://patchwork.freedesktop.org/patch/msgid/20170927193209.11870-1-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-10-13drm/vc4: Move the DSI clock divider workaround closer to the clock call.Eric Anholt
We want the adjusted_mode->clock to be the actual clock we're expecting to program, so that consumers see the right values for clock and vrefresh. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170815234722.20700-1-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-10-10drm/vc4: remove bridge from driver internal structurebenjamin.gaignard@linaro.org
With a call to drm_of_panel_bridge_remove() we could remove the bridge without store it in vc4_dpi internal driver structure. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1506936888-23844-5-git-send-email-benjamin.gaignard@linaro.org
2017-09-27drm/vc4: Set up the DSI host at pdev probe time, not component bind.Eric Anholt
We need the following things to happen in sequence: DSI host creation DSI device creation in the panel driver (needs DSI host) DSI device attach from panel to host. DSI drm_panel_add() DSI encoder creation DSI encoder's DRM panel/bridge attach Unless we allow device creation while the host isn't up yet, we need to break the -EPROBE_DEFER deadlock between the panel driver looking up the host and the host driver looking up the panel. We can do so by moving the DSI host creation outside of the component bind loop, and the panel/bridge lookup/attach into the component bind process. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170815234722.20700-3-eric@anholt.net Reviewed-by: Archit Taneja <architt@codeaurora.org>
2017-09-27drm/vc4: Avoid using vrefresh==0 mode in DSI htotal math.Eric Anholt
The incoming mode might have a missing vrefresh field if it came from drmModeSetCrtc(), which the kernel is supposed to calculate using drm_mode_vrefresh(). We could either use that or the adjusted_mode's original vrefresh value. However, we can maintain a more exact vrefresh value (not just the integer approximation), by scaling by the ratio of our clocks. v2: Use math suggested by Andrzej Hajda instead. v3: Simplify math now that adjusted_mode->clock isn't padded. v4: Drop some parens. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170815234722.20700-2-eric@anholt.net Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
2017-09-08drm/vc4: clean up error handling on devm_kzalloc failureColin Ian King
The current error handling when devm_kzalloc fails performs a non-null check on connector which is redundant because connector is null at that failure point. Once this is removed, make the failure path into a trivial -ENOMEM return to clean up the error handling. Also remove need to initialize connector to NULL. Detected by CoverityScan CID#1339527 ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170908140504.1340-1-colin.king@canonical.com
2017-09-05drm/vc4: Use correct path to trace includeThierry Reding
The header comment in include/trace/define_trace.h specifies that the TRACE_INCLUDE_PATH needs to be relative to the define_trace.h header rather than the trace file including it. Most instances get that wrong and work around it by adding the $(src) directory to the include path. While this works, it is preferable to refer to the correct path to the trace file in the first place and avoid any workaround. Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901144954.19620-6-thierry.reding@gmail.com
2017-08-16drm/vc4: Use drm_gem_fb_create()Noralf Trønnes
drm_fb_cma_create() is just a wrapper around drm_gem_fb_create() now, so use the function directly. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1502631125-13557-21-git-send-email-noralf@tronnes.org
2017-08-14drm/vc4: Continue the switch to drm_*_put() helpersCihangir Akturk
Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and drm_*_unreference() helpers. drm_*_reference() and drm_*_unreference() functions are just compatibility alias for drm_*_get() and drm_*_put() and should not be used by new code. So convert all users of compatibility functions to use the new APIs. Generated by: scripts/coccinelle/api/drm-get-put.cocci v2: Tweak commit summary to distinguish it from the previous commit covering everything but the new bo_label ioctl (by anholt). Signed-off-by: Cihangir Akturk <cakturk@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1502454794-28558-25-git-send-email-cakturk@gmail.com Reviewed-by: Eric Anholt <eric@anholt.net>
2017-08-14drm/vc4: Fix leak of HDMI EDIDEric Anholt
We don't keep a pointer to it around anywhere, so it's our job to free it. Cc: Stefan Wahren <stefan.wahren@i2se.com> Link: https://github.com/anholt/linux/issues/101 Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.") Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170808205605.4432-1-eric@anholt.net Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
2017-08-08drm/vc4: Add exec flags to allow forcing a specific X/Y tile walk order.Eric Anholt
This is useful to allow GL to provide defined results for overlapping glBlitFramebuffer, which X11 in turn uses to accelerate uncomposited window movement without first blitting to a temporary. x11perf -copywinwin100 goes from 1850/sec to 4850/sec. v2: Default to the same behavior as before when the flags aren't passed. (suggested by Boris) Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170725162733.28007-2-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-08drm/vc4: Demote user-accessible DRM_ERROR paths to DRM_DEBUG.Eric Anholt
Userspace shouldn't be able to spam dmesg by passing bad arguments. This has particularly become an issues since we started using a bad argument to set_tiling to detect if set_tiling was supported. Signed-off-by: Eric Anholt <eric@anholt.net> Fixes: 83753117f1de ("drm/vc4: Add get/set tiling ioctls.") Link: https://patchwork.freedesktop.org/patch/msgid/20170725162733.28007-1-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-08drm/vc4: switch to drm_*{get,put} helpersCihangir Akturk
drm_*_reference() and drm_*_unreference() functions are just compatibility alias for drm_*_get() and drm_*_put() adn should not be used by new code. So convert all users of compatibility functions to use the new APIs. Signed-off-by: Cihangir Akturk <cakturk@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1501761585-11757-26-git-send-email-cakturk@gmail.com Reviewed-by: Eric Anholt <eric@anholt.net>
2017-08-08drm/vc4: Fix errant drm_bridge_remove() in DSI.Eric Anholt
drm_bridge_remove() is for unregistering a bridge driver, not for detaching a bridge from its consumer. Fixes: 656fa22f9cea ("drm/vc4: Switch DSI to the panel-bridge layer, and support bridges.") Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170802203242.12815-3-eric@anholt.net Acked-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-08drm/vc4: Don't disable DSI clocks on component unload.Eric Anholt
The clocks are enabled/disabled at encoder enable/disable time, not at component load. Fixes a WARN_ON at boot if V3D fails to probe. Fixes: 4078f5757144 ("drm/vc4: Add DSI driver") Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170802203242.12815-2-eric@anholt.net Acked-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-08drm/vc4: Fix double destroy of the BO cache on teardown.Eric Anholt
It's also destroyed from the top level vc4_drv.c initialization, which is where the cache was actually initialized from. This used to just involve duplicate del_timer() and cancel_work_sync() being called, but it started causing kmalloc issues once we double-freed the new BO label array. Fixes: 1908a876f909 ("drm/vc4: Add an ioctl for labeling GEM BOs for summary stats") Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170802203242.12815-1-eric@anholt.net Tested-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-08-08drm: Nuke drm_atomic_helper_connector_dpmsDaniel Vetter
It's dead code, the core handles all this directly now. The only special case is nouveau and tda988x which used one function for both legacy modeset code and -nv50 atomic world instead of 2 vtables. But amounts to exactly the same. v2: Rebase over the panel/brideg refactorings in stm/ltdc. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Peter Senna Tschudin <peter.senna@collabora.com> Cc: Martin Donnelly <martin.donnelly@ge.com> Cc: Martyn Welch <martyn.welch@collabora.co.uk> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Stefan Agner <stefan@agner.ch> Cc: Alison Wang <alison.wang@freescale.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: CK Hu <ck.hu@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Marek Vasut <marex@denx.de> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Eric Anholt <eric@anholt.net> Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Yannick Fertre <yannick.fertre@st.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Jyri Sarha <jsarha@ti.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: Jeffy Chen <jeffy.chen@rock-chips.com> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: Yakir Yang <kuankuan.y@gmail.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Romain Perier <romain.perier@collabora.com> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Rongrong Zou <zourongrong@gmail.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Hai Li <hali@codeaurora.org> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: intel-gfx@lists.freedesktop.org Cc: linux-mediatek@lists.infradead.org Cc: linux-amlogic@lists.infradead.org Cc: nouveau@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-tegra@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Cc: zain wang <wzz@rock-chips.com> Cc: Baoyou Xie <baoyou.xie@linaro.org> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-8-daniel.vetter@ffwll.ch Acked-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Archit Taneja <architt@codeaurora.org> Tested-by: Philippe Cornu <philippe.cornu@st.com> (on stm) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Vincent Abriou <vincent.abriou@st.com>
2017-08-08drm: Nuke drm_atomic_helper_connector_set_propertyDaniel Vetter
It's dead code, the core handles all this directly now. This also allows us to unexport drm_atomic_helper_connector_set_property. The only special case is nouveau which used one function for both pre-nv50 legacy modeset code and post-nv50 atomic world instead of 2 vtables. But amounts to exactly the same. What is rather strange here is how few drivers set this up, I suspect the earlier patch to handle properties in the core did end up fixing a pile of possible issues. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Eric Anholt <eric@anholt.net> Cc: intel-gfx@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170725080122.20548-7-daniel.vetter@ffwll.ch Acked-by: Vincent Abriou <vincent.abriou@st.com>
2017-08-01drm: Plumb modifiers through plane initBen Widawsky
This is the plumbing for supporting fb modifiers on planes. Modifiers have already been introduced to some extent, but this series will extend this to allow querying modifiers per plane. Based on this, the client to enable optimal modifications for framebuffers. This patch simply allows the DRM drivers to initialize their list of supported modifiers upon initializing the plane. v2: A minor addition from Daniel v3: * Updated commit message * s/INVALID/DRM_FORMAT_MOD_INVALID (Liviu) * Remove some excess newlines (Liviu) * Update comment for > 64 modifiers (Liviu) v4: Minor comment adjustments (Liviu) v5: Some new platforms added due to rebase v6: Add some missed plane inits (or maybe they're new - who knows at this point) (Daniel) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Daniel Stone <daniels@collabora.com> (v2) Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Daniel Stone <daniels@collabora.com>
2017-07-29drm/vc4: Use .dumb_map_offset and .dumb_destroy defaultsNoralf Trønnes
This driver can use the drm_driver.dumb_destroy and drm_driver.dumb_map_offset defaults, so no need to set them. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-20-git-send-email-noralf@tronnes.org
2017-07-28drm/vc4: Convert more lock requirement comments to lockdep assertions.Eric Anholt
Since I do my development with lockdep on, this will help make sure I don't introduce bugs here. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170725182718.31468-3-eric@anholt.net Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-28drm/vc4: Add an ioctl for labeling GEM BOs for summary statsEric Anholt
This has proven immensely useful for debugging memory leaks and overallocation (which is a rather serious concern on the platform, given that we typically run at about 256MB of CMA out of up to 1GB total memory, with framebuffers that are about 8MB ecah). The state of the art without this is to dump debug logs from every GL application, guess as to kernel allocations based on bo_stats, and try to merge that all together into a global picture of memory allocation state. With this, you can add a couple of calls to the debug build of the 3D driver and get a pretty detailed view of GPU memory usage from /debug/dri/0/bo_stats (or when we debug print to dmesg on allocation failure). The Mesa side currently labels at the gallium resource level (so you see that a 1920x20 pixmap has been created, presumably for the window system panel), but we could extend that to be even more useful with glObjectLabel() names being sent all the way down to the kernel. (partial) example of sorted debugfs output with Mesa labeling all resources: kernel BO cache: 16392kb BOs (3) tiling shadow 1920x1080: 8160kb BOs (1) resource 1920x1080@32/0: 8160kb BOs (1) scanout resource 1920x1080@32/0: 8100kb BOs (1) kernel: 8100kb BOs (1) v2: Use strndup_user(), use lockdep assertion instead of just a comment, fix an array[-1] reference, extend comment about name freeing. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170725182718.31468-2-eric@anholt.net Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-07-28drm/vc4: Start using u64_to_user_ptr.Eric Anholt
Chris Wilson pointed out this little cleanup in a review of new code, so let's fix up the code I was copying from. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170725182718.31468-1-eric@anholt.net Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-26Merge airlied/drm-next into drm-misc-nextSean Paul
Backmerge drm-next with -rc2 in it to pull in a couple stm patches that were previously incorrectly applied to -misc-next. By picking them up in the correct manner, git will hopefully fix any errant trees that are out in the wild. Signed-off-by: Sean Paul <seanpaul@chromium.org>
2017-07-27Backmerge tag 'v4.13-rc2' into drm-nextDave Airlie
Linux 4.13-rc2 This is required for drm-misc fixing.
2017-07-26drm/vc4: add HDMI CEC supportHans Verkuil
This patch adds support to VC4 for CEC. It is under a separate Kconfig option to keep everyone using VC4 from needing to pull in the CEC core. Thanks to Eric Anholt for providing me with the CEC register information. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170716104804.48308-4-hverkuil@xs4all.nl
2017-07-26drm/vc4: prepare for CEC supportHans Verkuil
In order to support CEC the hsm clock needs to be enabled in vc4_hdmi_bind(), not in vc4_hdmi_encoder_enable(). Otherwise you wouldn't be able to support CEC when there is no hotplug detect signal, which is required by some monitors that turn off the HPD when in standby, but keep the CEC bus alive so they can be woken up. The HDMI core also has to be enabled in vc4_hdmi_bind() for the same reason. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20170716104804.48308-3-hverkuil@xs4all.nl
2017-07-26drm/vc4: Handle drm_atomic_helper_swap_state failureMaarten Lankhorst
drm_atomic_helper_swap_state() will be changed to interruptible waiting in the next few commits, so all drivers have to be changed to handling failure. VC4 has its own nonblocking modeset tracking through the vc4->async_modeset semaphore, so it doesn't need to stall in swap_state. Pass stall = false and BUG_ON when it returns an error. This should never happen for !stall. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170711143314.2148-11-maarten.lankhorst@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-07-14drm/vc4: Fix misleading name of the continuous flag.Eric Anholt
The logic was all right in the end, the name was just backwards. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170627195839.3338-3-eric@anholt.net Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
2017-07-14drm/vc4: Fix DSI T_INIT timing.Eric Anholt
The DPHY spec requires a much larger T_INIT than I was specifying before. In the absence of clear specs from the slave of what their timing is, just use the value that the firmware was using. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170627195839.3338-2-eric@anholt.net Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
2017-07-14drm/vc4: Fix VBLANK handling in crtc->enable() pathBoris Brezillon
When we are enabling a CRTC, drm_crtc_vblank_get() is called before drm_crtc_vblank_on(), which is not supposed to happen (hence the WARN_ON() in the code). To solve the problem, we delay the 'update display list' operation after the CRTC is actually enabled. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1498163126-26678-1-git-send-email-boris.brezillon@free-electrons.com Fixes: 34c8ea400ff6 ("drm/vc4: Mimic drm_atomic_helper_commit() behavior")
2017-07-14drm: handle HDMI 2.0 VICs in AVI info-framesShashank Sharma
HDMI 1.4b support the CEA video modes as per range of CEA-861-D (VIC 1-64). For any other mode, the VIC filed in AVI infoframes should be 0. HDMI 2.0 sinks, support video modes range as per CEA-861-F spec, which is extended to (VIC 1-107). This patch adds a bool input variable, which indicates if the connected sink is a HDMI 2.0 sink or not. This will make sure that we don't pass a HDMI 2.0 VIC to a HDMI 1.4 sink. This patch touches all drm drivers, who are callers of this function drm_hdmi_avi_infoframe_from_display_mode but to make sure there is no change in current behavior, is_hdmi2 is kept as false. In case of I915 driver, this patch: - checks if the connected display is HDMI 2.0. - HDMI infoframes carry one of this two type of information: - VIC for 4K modes for HDMI 1.4 sinks - S3D information for S3D modes As CEA-861-F has already defined VICs for 4K videomodes, this patch doesn't allow sending HDMI infoframes for HDMI 2.0 sinks, until the mode is 3D. Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Jose Abreu <jose.abreu@synopsys.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Daniel Vetter <daniel.vetter@intel.com> PS: This patch touches a few lines in few files, which were already above 80 char, so checkpatch gives 80 char warning again. - gpu/drm/omapdrm/omap_encoder.c - gpu/drm/i915/intel_sdvo.c V2: Rebase, Added r-b from Andrzej V3: Addressed review comment from Ville: - Do not send VICs in both AVI-IF and HDMI-IF send only one of it. V4: Rebase V5: Added r-b from Neil. Addressed review comments from Ville - Do not block HDMI vendor IF, instead check for VIC while handling AVI infoframes V6: Rebase V7: Rebase Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1499960000-9232-2-git-send-email-shashank.sharma@intel.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-06-30drm: Convert atomic drivers from CRTC .disable() to .atomic_disable()Laurent Pinchart
The CRTC .disable() helper operation is deprecated for atomic drivers, the new .atomic_disable() helper operation being preferred. Convert all atomic drivers to .atomic_disable() to avoid cargo-cult use of .disable() in new drivers. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for mediatek Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-3-laurent.pinchart+renesas@ideasonboard.com
2017-06-30drm: Add old state pointer to CRTC .enable() helper functionLaurent Pinchart
The old state is useful for drivers that need to perform operations at enable time that depend on the transition between the old and new states. While at it, rename the operation to .atomic_enable() to be consistent with .atomic_disable(), as the .enable() operation is used by atomic helpers only. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-drm and mediatek Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> # for hdlcd and mali-dp Acked-by: Stefan Agner <stefan@agner.ch> # for fsl-dcu Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-2-laurent.pinchart+renesas@ideasonboard.com
2017-06-22drm/vc4: Remove dead vc4_event_pending().Eric Anholt
It is no longer used as of commit 34c8ea400ff6 ("drm/vc4: Mimic drm_atomic_helper_commit() behavior") Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170621185002.28563-4-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-22drm/vc4: Use the atomic state's commit workqueue.Eric Anholt
Now that we're using the atomic helpers for fence waits, we can use the same codepath as drm_atomic_helper_commit() does for async, getting rid of our custom vc4_commit struct. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170621185002.28563-3-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-22drm/vc4: Wait for fences interruptibly in blocking mode.Eric Anholt
We should allow SIGIO and things to interrupt us before we get to the no-error stage of the commit process. This code is effectively copied from drm_atomic_helper_commit(). Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170621185002.28563-2-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-22drm/vc4: Hook up plane prepare_fb to lookup dma-buf reservations.Eric Anholt
This way drm_atomic_helper_wait_for_fences() will actually do something. The vc4_seqno_cb has been doing the fence waits on V3D manually, so far. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170621185002.28563-1-eric@anholt.net Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-22drm/vc4: Allow vblank_disable_immediate on non-fw-kms. (v2)Mario Kleiner
With instantaneous high precision vblank timestamping that updates at leading edge of vblank, the emulated "hw vblank counter" from vblank timestamping which increments at leading edge of vblank, and reliable page flip execution and completion at leading edge of vblank, we should meet the requirements for fast vblank irq disable/enable. Testing against rpi-4.12-rc5 Linux kernel with timing measurement equipment indicates this works fine, so allow immediate vblank disable for power saving. For debugging in case of unexpected trouble, booting with kernel cmdline option drm.vblankoffdelay=0 would keep vblank irqs on to approximate old behavior. v2: Respin onto drm-misc-next, per Eric's suggestion. Drop !vc4->firmware_kms check, as the firmware_kms implementation does not exist in upstream. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170622012811.2139-1-mario.kleiner.de@gmail.com
2017-06-21drm/vc4: Send a VBLANK event when disabling a CRTCBoris Brezillon
VBLANK events are missed when the CRTC is being disabled because the driver does not wait till the end of the frame before stopping the HVS and PV blocks. In this case, we should explicitly issue a VBLANK event if there's one waiting. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1497601833-24588-1-git-send-email-boris.brezillon@free-electrons.com
2017-06-20drm: vc4: Use crtc->mode_valid() and encoder->mode_valid() callbacksJose Abreu
Now that we have a callback to check if crtc and encoder supports a given mode we can use it in vc4 so that we restrict the number of probed modes to the ones we can actually display. Also, remove the mode_fixup() calls as these are no longer needed because mode_valid() will be called before. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Cc: Carlos Palminha <palminha@synopsys.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Eric Anholt <eric@anholt.net> Cc: David Airlie <airlied@linux.ie> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Compile-tested and Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/5bea792f91074688c88a2dab8b0a90eec6e98fdf.1495720737.git.joabreu@synopsys.com
2017-06-15drm/vc4: Mimic drm_atomic_helper_commit() behaviorBoris Brezillon
The VC4 KMS driver is implementing its own ->atomic_commit() but there are a few generic helpers we can use instead of open-coding the logic. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/1496392332-8722-4-git-send-email-boris.brezillon@free-electrons.com
2017-06-15drm/vc4: Add get/set tiling ioctls.Eric Anholt
This allows mesa to set the tiling format for a BO and have that tiling format be respected by mesa on the other side of an import/export (and by vc4 scanout in the kernel), without defining a protocol to pass the tiling through userspace. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170608001336.12842-2-eric@anholt.net Acked-by: Dave Airlie <airlied@redhat.com>
2017-06-15drm/vc4: Add T-format scanout support.Eric Anholt
The T tiling format is what V3D uses for textures, with no raster support at all until later revisions of the hardware (and always at a large 3D performance penalty). If we can't scan out V3D's format, then we often need to do a relayout at some stage of the pipeline, either right before texturing from the scanout buffer (common in X11 without a compositor) or between a tiled screen buffer right before scanout (an option I've considered in trying to resolve this inconsistency, but which means needing to use the dirty fb ioctl and having some update policy). T-format scanout lets us avoid either of those shadow copies, for a massive, obvious performance improvement to X11 window dragging without a compositor. Unfortunately, enabling a compositor to work around the discrepancy has turned out to be too costly in memory consumption for the Raspbian distribution. Because the HVS operates a scanline at a time, compositing from T does increase the memory bandwidth cost of scanout. On my 1920x1080@32bpp display on a RPi3, we go from about 15% of system memory bandwidth with linear to about 20% with tiled. However, for X11 this still ends up being a huge performance win in active usage. This patch doesn't yet handle src_x/src_y offsetting within the tiled buffer. However, we fail to do so for untiled buffers already. Signed-off-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170608001336.12842-1-eric@anholt.net Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-06-12drm/vc4: Fix resource leak in 'vc4_get_hang_state_ioctl()' in error handling ↵Christophe JAILLET
path If one 'drm_gem_handle_create()' fails, we leak somes handles and some memory. In order to fix it: - move the 'free(bo_state)' at the end of the function so that it is also called in the eror handling path. This has the side effect to also try to free it if the first 'kcalloc' fails. This is harmless. - add a new label, err_delete_handle, in order to delete already allocated handles in error handling path - remove the now useless 'err' label The way the code is now written will also delete the handles if the 'copy_to_user()' call fails. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Eric Anholt <eric@anholt.net> Link: http://patchwork.freedesktop.org/patch/msgid/20170512123803.1886-1-christophe.jaillet@wanadoo.fr