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path: root/drivers/gpu/drm/tegra/drm.c
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2020-06-02Merge tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - Core DRM had a lot of refactoring around managed drm resources to make drivers simpler. - Intel Tigerlake support is on by default - amdgpu now support p2p PCI buffer sharing and encrypted GPU memory Details: core: - uapi: error out EBUSY when existing master - uapi: rework SET/DROP MASTER permission handling - remove drm_pci.h - drm_pci* are now legacy - introduced managed DRM resources - subclassing support for drm_framebuffer - simple encoder helper - edid improvements - vblank + writeback documentation improved - drm/mm - optimise tree searches - port drivers to use devm_drm_dev_alloc dma-buf: - add flag for p2p buffer support mst: - ACT timeout improvements - remove drm_dp_mst_has_audio - don't use 2nd TX slot - spec recommends against it bridge: - dw-hdmi various improvements - chrontel ch7033 support - fix stack issues with old gcc hdmi: - add unpack function for drm infoframe fbdev: - misc fbdev driver fixes i915: - uapi: global sseu pinning - uapi: OA buffer polling - uapi: remove generated perf code - uapi: per-engine default property values in sysfs - Tigerlake GEN12 enabled. - Lots of gem refactoring - Tigerlake enablement patches - move to drm_device logging - Icelake gamma HW readout - push MST link retrain to hotplug work - bandwidth atomic helpers - ICL fixes - RPS/GT refactoring - Cherryview full-ppgtt support - i915 locking guidelines documented - require linear fb stride to be 512 multiple on gen9 - Tigerlake SAGV support amdgpu: - uapi: encrypted GPU memory handling - uapi: add MEM_SYNC IB flag - p2p dma-buf support - export VRAM dma-bufs - FRU chip access support - RAS/SR-IOV updates - Powerplay locking fixes - VCN DPG (powergating) enablement - GFX10 clockgating fixes - DC fixes - GPU reset fixes - navi SDMA fix - expose FP16 for modesetting - DP 1.4 compliance fixes - gfx10 soft recovery - Improved Critical Thermal Faults handling - resizable BAR on gmc10 amdkfd: - uapi: GWS resource management - track GPU memory per process - report PCI domain in topology radeon: - safe reg list generator fixes nouveau: - HD audio fixes on recent systems - vGPU detection (fail probe if we're on one, for now) - Interlaced mode fixes (mostly avoidance on Turing, which doesn't support it) - SVM improvements/fixes - NVIDIA format modifier support - Misc other fixes. adv7511: - HDMI SPDIF support ast: - allocate crtc state size - fix double assignment - fix suspend bochs: - drop connector register cirrus: - move to tiny drivers. exynos: - fix imported dma-buf mapping - enable runtime PM - fixes and cleanups mediatek: - DPI pin mode swap - config mipi_tx current/impedance lima: - devfreq + cooling device support - task handling improvements - runtime PM support pl111: - vexpress init improvements - fix module auto-load rcar-du: - DT bindings conversion to YAML - Planes zpos sanity check and fix - MAINTAINERS entry for LVDS panel driver mcde: - fix return value mgag200: - use managed config init stm: - read endpoints from DT vboxvideo: - use PCI managed functions - drop WC mtrr vkms: - enable cursor by default rockchip: - afbc support virtio: - various cleanups qxl: - fix cursor notify port hisilicon: - 128-byte stride alignment fix sun4i: - improved format handling" * tag 'drm-next-2020-06-02' of git://anongit.freedesktop.org/drm/drm: (1401 commits) drm/amd/display: Fix potential integer wraparound resulting in a hang drm/amd/display: drop cursor position check in atomic test drm/amdgpu: fix device attribute node create failed with multi gpu drm/nouveau: use correct conflicting framebuffer API drm/vblank: Fix -Wformat compile warnings on some arches drm/amdgpu: Sync with VM root BO when switching VM to CPU update mode drm/amd/display: Handle GPU reset for DC block drm/amdgpu: add apu flags (v2) drm/amd/powerpay: Disable gfxoff when setting manual mode on picasso and raven drm/amdgpu: fix pm sysfs node handling (v2) drm/amdgpu: move gpu_info parsing after common early init drm/amdgpu: move discovery gfx config fetching drm/nouveau/dispnv50: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau/nouveau/hmm: fix migrate zero page to GPU drm/nouveau/nouveau/hmm: fix nouveau_dmem_chunk allocations drm/nouveau/kms/nv50-: Share DP SST mode_valid() handling with MST drm/nouveau/kms/nv50-: Move 8BPC limit for MST into nv50_mstc_get_modes() ...
2020-04-28drm/tegra: Fix SMMU support on Tegra124 and Tegra210Thierry Reding
When testing whether or not to enable the use of the SMMU, consult the supported DMA mask rather than the actually configured DMA mask, since the latter might already have been restricted. Fixes: 2d9384ff9177 ("drm/tegra: Relax IOMMU usage criteria on old Tegra") Tested-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-03-18drm: convert .debugfs_init() hook to return void.Wambui Karuga
As a result of commit 987d65d01356 (drm: debugfs: make drm_debugfs_create_files() never fail) and changes to various debugfs functions in drm/core and across various drivers, there is no need for the drm_driver.debugfs_init() hook to have a return value. Therefore, declare it as void. This also includes refactoring all users of the .debugfs_init() hook to return void across the subsystem. v2: include changes to the hook and drivers that use it in one patch to prevent driver breakage and enable individual successful compilation of this change. References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-18-wambui.karugax@gmail.com
2020-03-18drm/tegra: remove checks for debugfs functions return valueWambui Karuga
Since 987d65d01356 (drm: debugfs: make drm_debugfs_create_files() never fail) there is no need to check the return value of drm_debugfs_create_files(). Therefore, remove the return checks and error handling of the drm_debugfs_create_files() function from various debugfs init functions in drm/tegra and have them return 0 directly. v2: remove conversion of tegra_debugfs_init() to void to avoid build breakage. References: https://lists.freedesktop.org/archives/dri-devel/2020-February/257183.html Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200310133121.27913-2-wambui.karugax@gmail.com
2020-02-06drm/tegra: Relax IOMMU usage criteria on old TegraThierry Reding
Older Tegra devices only allow addressing 32 bits of memory, so whether or not the host1x is attached to an IOMMU doesn't matter. host1x IOMMU attachment is only needed on devices that can address memory beyond the 32-bit boundary and where the host1x doesn't support the wide GATHER opcode that allows it to access buffers at higher addresses. Cc: <stable@vger.kernel.org> # v5.5 Signed-off-by: Thierry Reding <treding@nvidia.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
2020-01-10gpu: host1x: Rename "parent" to "host"Thierry Reding
Rename the host1x clients' parent to "host" because that more closely describes what it is. The parent can be confused with the parent device in terms of the device hierarchy. Subsequent patches will add a new member that refers to the parent in that hierarchy. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-12-04drm/tegra: Run hub cleanup on ->remove()Thierry Reding
The call to tegra_display_hub_cleanup() that takes care of disabling the window groups is missing from the driver's ->remove() callback. Call it to make sure the runtime PM reference counts for the display controllers are balanced. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-12-04drm/tegra: Silence expected errors on IOMMU attachThierry Reding
Subdevices may not be hooked up to an IOMMU via device tree. Detect such situations and avoid confusing users by not emitting an error message. Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29drm/tegra: Optionally attach clients to the IOMMUThierry Reding
If a client is already attached to an IOMMU domain that is not the shared domain, don't try to attach it again. This allows using the IOMMU-backed DMA API. Since the IOMMU-backed DMA API is now supported and there's no way to detach from it on 64-bit ARM, don't bother to detach from it on 32-bit ARM either. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29gpu: host1x: Add direction flags to relocationsThierry Reding
Add direction flags to host1x relocations performed during job pinning. These flags indicate the kinds of accesses that hardware is allowed to perform on the relocated buffers. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29drm/tegra: Simplify IOMMU group selectionThierry Reding
All the devices that make up the DRM device are now part of the same IOMMU group. This simplifies the handling of the IOMMU attachment and also avoids exhausting the number of IOMMUs available on early Tegra SoC generations. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29drm/tegra: Do not use ->load() and ->unload() callbacksThierry Reding
The ->load() and ->unload() drivers are midlayers and should be avoided in modern drivers. Fix this by moving the code into the driver ->probe() and ->remove() implementations, respectively. v2: kick out conflicting framebuffers before initializing fbdev v3: rebase onto drm/tegra/for-next Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-28drm/tegra: Move IOMMU group into host1x clientThierry Reding
Handling of the IOMMU group attachment is common to all clients, so move the group into the client to simplify code. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-28drm/tegra: Use DRM_DEBUG_DRIVER for driver messagesThierry Reding
The driver-specific messages should use the DRM_UT_DRIVER category so that they can be properly filtered. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-24drm/tegra: Fix ordering of cleanup codeThierry Reding
Commit Fixes: b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after initialization") changed the initialization order of the IOMMU related bits but didn't update the cleanup path accordingly. This asymmetry can cause failures during error recovery. Fixes: b9f8b09ce256 ("drm/tegra: Setup shared IOMMU domain after initialization") Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com>
2019-08-14drm/tegra: drop use of drmP.hSam Ravnborg
Drop use of the deprecated drmP.h header file. For all touched files divide include files into blocks, and sort them within the blocks. Fix fallout. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Thierry Reding <treding@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-tegra@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20190804094132.29463-3-sam@ravnborg.org
2019-07-22Merge v5.3-rc1 into drm-misc-nextMaxime Ripard
Noralf needs some SPI patches in 5.3 to merge some work on tinydrm. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-06-26drm/tegra: remove irrelevant DRM_UNLOCKED flagEmil Velikov
DRM_UNLOCKED doesn't do anything for non-legacy drivers. Remove it. Cc: Thierry Reding <treding@nvidia.com> Cc: linux-tegra@vger.kernel.org Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190522154702.16269-1-emil.l.velikov@gmail.com
2019-06-21drm/prime: Actually remove DRIVER_PRIME everywhereDaniel Vetter
Split out to make the functional changes stick out more. All places where DRIVER_PRIME was used have been removed in previous patches already. v2: amdgpu gained DRIVER_SYNCOBJ_TIMELINE. v3: amdgpu lost DRIVER_SYNCOBJ_TIMELINE. v4: Don't add a space in i915_drv.c (Sam) v5: Add note that previous patches removed all the DRIVER_PRIME users already (Emil). v6: Fixupe ingenic (new driver) while applying. Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: amd-gfx@lists.freedesktop.org Cc: etnaviv@lists.freedesktop.org Cc: freedreno@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Cc: lima@lists.freedesktop.org Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-aspeed@lists.ozlabs.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-tegra@vger.kernel.org Cc: nouveau@lists.freedesktop.org Cc: NXP Linux Team <linux-imx@nxp.com> Cc: spice-devel@lists.freedesktop.org Cc: virtualization@lists.linux-foundation.org Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: xen-devel@lists.xenproject.org Link: https://patchwork.freedesktop.org/patch/msgid/20190617153924.414-1-daniel.vetter@ffwll.ch
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-07drm/tegra: Restrict IOVA space to DMA maskThierry Reding
On Tegra186 and later, the ARM SMMU provides an input address space that is 48 bits wide. However, memory clients can only address up to 40 bits. If the geometry is used as-is, allocations of IOVA space can end up in a region that cannot be addressed by the memory clients. To fix this, restrict the IOVA space to the DMA mask of the host1x device. Note that, technically, the IOVA space needs to be restricted to the intersection of the DMA masks for all clients that are attached to the IOMMU domain. In practice using the DMA mask of the host1x device is sufficient because all host1x clients share the same DMA mask. Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-02-07drm/tegra: Setup shared IOMMU domain after initializationThierry Reding
Move initialization of the shared IOMMU domain after the host1x device has been initialized. At this point all the Tegra DRM clients have been attached to the shared IOMMU domain. This is important because Tegra186 and later use an ARM SMMU, for which the driver defers setting up the geometry for a domain until a device is attached to it. This is to ensure that the domain is properly set up for a specific ARM SMMU instance, which is unknown at allocation time. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-02-07drm/tegra: Store parent pointer in Tegra DRM clientsThierry Reding
Tegra DRM clients need access to their parent, so store a pointer to it upon registration. It's technically possible to get at this by going via the host1x client's parent and getting the driver data, but that's quite complicated and not very transparent. It's much more straightforward and natural to let the children know about their parent. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
2018-11-29drm/tegra: vic: Add Tegra194 supportThierry Reding
The Video Image Composer (VIC) generation found on Tegra194 is backwards compatible with its predecessor found on Tegra186. Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-28Merge tag 'drm/tegra/for-4.20-rc1' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Changes for v4.20-rc1 This contains initial Tegra194 support as well as a couple of fixes for DMA/IOMMU integration. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thierry Reding <thierry.reding@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180927205051.30017-1-thierry.reding@gmail.com
2018-09-26drm/tegra: Detach devices from IOMMU DMA domain on arm32Dmitry Osipenko
All Tegra DRM devices are getting attached to an implicit IOMMU DMA domain if CONFIG_ARM_DMA_USE_IOMMU=y. Since Tegra DRM driver manages IOMMU by itself, the devices must be detached from the implicit domain using arch-specific IOMMU-API. Note that this works only for arm32 and not for arm64, which will remain broken if CONFIG_IOMMU_DMA is enabled. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-26drm/tegra: Replace drm_dev_unref with drm_dev_putThomas Zimmermann
This patch unifies the naming of DRM functions for reference counting of struct drm_device. The resulting code is more aligned with the rest of the Linux kernel interfaces. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926115640.24755-1-tzimmermann@suse.de
2018-09-26drm/tegra: sor: Add Tegra194 supportThierry Reding
The SOR implemented in Tegra194 is subtly different from its predecessor found in Tegra186. Most notably some registers have been moved around so it is no longer compatible. Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-26drm/tegra: dc: Add Tegra194 supportThierry Reding
The display controllers found on Tegra194 are almost identical to those found on Tegra186. Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-26drm/tegra: hub: Add Tegra194 supportThierry Reding
The display hub integrated into Tegra194 is almost identical to the one found on Tegra186. However, it doesn't support DSC (display stream compression) so it isn't fully compatible. Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-18drm/tegra: Convert drm_atomic_helper_suspend/resume()Souptick Joarder
convert drm_atomic_helper_suspend/resume() to use drm_mode_config_helper_suspend/resume(). With this conversion, tegra_drm_fb_suspend() and tegra_drm_fb_resume() will not be used anymore. Both of these functions can be removed. Also, in tegra_drm struct's member state will not be used anymore. So this can be removed forever. Fixed one sparse warning. Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by: Ajit Negi <ajitn.linux@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-09-03drm/tegra: kick out simplefbMichał Mirosław
Kick out firmware fb when loading Tegra driver. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/b5c3972e5774d0d1f8887054a993bbc54e9dbe2a.1535810304.git.mirq-linux@rere.qmqm.pl
2018-07-09drm/tegra: Fix comparison operator for buffer sizeMikko Perttunen
Here we are checking for the buffer length, not an offset for writing to, so using > is correct. The current code incorrectly rejects a command buffer ending at the memory buffer's end. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-22Merge tag 'drm/tegra/for-4.18-rc1' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Changes for v4.18-rc1 This set enables IOMMU support in the gr2d and gr3d drivers and adds support for the zpos property on older Tegra generations. It also enables scaling filters and incorporates some rework to eliminate a private wrapper around struct drm_framebuffer. The remainder is mostly a random assortment of fixes and cleanups, as well as some preparatory work for destaging the userspace ABI, which is almost ready and is targetted for v4.19-rc1. Signed-off-by: Dave Airlie <airlied@redhat.com> # gpg: Signature made Sat 19 May 2018 08:31:00 AEST # gpg: using RSA key DD23ACD77F3EB3A1 # gpg: Can't check signature: public key not found Link: https://patchwork.freedesktop.org/patch/msgid/20180518224523.30982-1-thierry.reding@gmail.com
2018-05-18gpu: host1x: Rename relocarray -> relocs for consistencyThierry Reding
All other array variables use a plural, and this is the only one using the *array suffix. This is confusing, so rename it for consistency. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-18gpu: host1x: Store pointer to client in jobsThierry Reding
Rather than storing some identifier derived from the application context that can't be used concretely anywhere, store a pointer to the client directly so that accesses can be made directly through that client object. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-18gpu: host1x: Remove wait check supportThierry Reding
The job submission userspace ABI doesn't support this and there are no plans to implement it, so all of this code is dead and can be removed. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-17drm/tegra: Acquire a reference to the IOVA cacheThierry Reding
The IOVA API uses a memory cache to allocate IOVA nodes from. To make sure that this cache is available, obtain a reference to it and release the reference when the cache is no longer needed. On 64-bit ARM this is hidden by the fact that the DMA mapping API gets that reference and never releases it. On 32-bit ARM, however, the DMA mapping API doesn't do that, so allocation of IOVA nodes fails. Fixes: ad92601521ea ("drm/tegra: Add Tegra DRM allocation API") Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-17drm/tegra: Fix order of teardown in IOMMU caseThierry Reding
The original code works fine, this is merely a cosmetic change to make the teardown order the reverse of the setup order. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-05-17drm/tegra: Refactor IOMMU attach/detachThierry Reding
Attaching to and detaching from an IOMMU uses the same code sequence in every driver, so factor it out into separate helpers. Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-03-30Merge airlied/drm-next into drm-misc-nextSean Paul
Backmerging to pick up a fix from drm-misc-next-fixes. Signed-off-by: Sean Paul <seanpaul@chromium.org>
2018-03-28drm/tegra: Let core take care of normalizing the zposPeter Ujfalusi
Set the drm_mode_config->normalize_zpos and call the generic drm_atomic_helper_check() instead of duplicating it within tegra_atomic_check(). Call tegra_display_hub_atomic_check() after the drm_atomic_helpre_check() returned without error. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> CC: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180321102029.15248-4-peter.ujfalusi@ti.com
2018-03-28Backmerge tag 'v4.16-rc7' into drm-nextDave Airlie
Linux 4.16-rc7 This was requested by Daniel, and things were getting a bit hard to reconcile, most of the conflicts were trivial though.
2018-03-19drm/tegra: Shutdown on driver unbindThierry Reding
Since commit 846c7dfc1193 ("drm/atomic: Try to preserve the crtc enabled state in drm_atomic_remove_fb, v2."), removing the last framebuffer will no longer disable the corresponding pipeline, which causes the KMS core to complain about leaked connectors on driver unbind. Fix this by calling drm_atomic_helper_shutdown() on driver unbind, which will cause all display pipelines to be shut down and therefore drop the extra references on the connectors. Signed-off-by: Thierry Reding <treding@nvidia.com>
2018-03-17drm/tegra: hub: Use private object for global stateThierry Reding
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: Thierry Reding <treding@nvidia.com>
2018-01-12Merge tag 'drm/tegra/for-4.16-rc1-fixes' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/tegra: Changes for v4.16-rc1 The bulk of these changes are preparation work and addition of support for Tegra186. Currently only HDMI output (the primary output on Jetson TX2) is supported, but the hardware is also capable of doing DSI and DisplayPort. Tegra DRM now also uses the atomic commit helpers instead of the open- coded variant that was only doing half its job. As a bit of a byproduct of the Tegra186 support the driver also gained HDMI 2.0 as well as zpos property support. Along the way there are also a few patches to clean up a few things and fix minor issues. * tag 'drm/tegra/for-4.16-rc1-fixes' of git://anongit.freedesktop.org/tegra/linux: (51 commits) drm/tegra: dc: Properly cleanup overlay planes drm/tegra: dc: Fix possible_crtcs mask for planes drm/tegra: dc: Restore YUV overlay support drm/tegra: dc: Implement legacy blending drm/tegra: Correct timeout in tegra_syncpt_wait drm/tegra: gem: Correct iommu_map_sg() error checking drm/tegra: dc: Link DC1 to DC0 on Tegra20 drm/tegra: Fix non-debugfs builds drm/tegra: dpaux: Keep reset defaults for hybrid pad parameters drm/tegra: Mark Tegra186 display hub PM functions __maybe_unused drm/tegra: Use IOMMU groups gpu: host1x: Use IOMMU groups drm/tegra: Implement zpos property drm/tegra: dc: Remove redundant spinlock drm/tegra: dc: Use direct offset to plane registers drm/tegra: dc: Support more formats drm/tegra: fb: Force alpha formats drm/tegra: dpaux: Add Tegra186 support drm/tegra: dpaux: Implement runtime PM drm/tegra: sor: Support HDMI 2.0 modes ...
2017-12-21drm/tegra: Correct timeout in tegra_syncpt_waitDmitry Osipenko
host1x_syncpt_wait() takes timeout value in jiffies, but DRM passes it in milliseconds. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-21drm/tegra: Implement zpos propertyThierry Reding
Implement the standard zpos property for planes on Tegra124 and later. Earlier generations have a different blending unit that needs different programming. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: sor: Add Tegra186 supportThierry Reding
The SOR found on Tegra186 is very similar to the one found on Tegra210 and earlier. However, due to some changes in the display architecture, some programming sequences have changed and some register have moved around. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13drm/tegra: dc: Add Tegra186 supportThierry Reding
The display architecture has changed in several signifcant ways with the new Tegra186 SoC. Display controllers are a completely different design, but have been given a frontend that simulates the register interface for earlier chips. Unfortunately the frontend isn't completely backwards compatible, so the driver needs parameterization to take the changes into account. One big change is that the total number of display controllers has been increased to three. At the same time the number of planes available has remained constant. However, planes can now be freely assigned between the display controllers, giving applications more flexibility in making the best use of the available resources. Signed-off-by: Thierry Reding <treding@nvidia.com>