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path: root/drivers/gpu/drm/udl/udl_dmabuf.c
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2019-07-17drm/udl: drop use of drmP.hSam Ravnborg
The drmP.h header file is deprecated. Drop it from all files in the udl driver. Made the header files self contained, which then made it simpler to update the .c files. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Robert Tarasov <tutankhamen@chromium.org> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: "Noralf Trønnes" <noralf@tronnes.org> Cc: Eric Anholt <eric@anholt.net> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Emil Lundmark <lndmrk@chromium.org> Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190716064220.18157-9-sam@ravnborg.org
2019-06-21drm/prime: Align gem_prime_export with obj_funcs.exportDaniel Vetter
The idea is that gem_prime_export is deprecated in favor of obj_funcs.export. That's much easier to do if both have matching function signatures. Reviewed-by: Eric Anholt <eric@anholt.net> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <maxime.ripard@bootlin.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: Zhi Wang <zhi.a.wang@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Eric Anholt <eric@anholt.net> Cc: "Michel Dänzer" <michel.daenzer@amd.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Huang Rui <ray.huang@amd.com> Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Hawking Zhang <Hawking.Zhang@amd.com> Cc: Feifei Xu <Feifei.Xu@amd.com> Cc: Jim Qu <Jim.Qu@amd.com> Cc: Evan Quan <evan.quan@amd.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Thomas Zimmermann <tdz@users.sourceforge.net> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Jilayne Lovejoy <opensource@jilayne.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Junwei Zhang <Jerry.Zhang@amd.com> Cc: intel-gvt-dev@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20190614203615.12639-10-daniel.vetter@ffwll.ch
2019-05-21treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13Thomas 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 as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-20dma-buf: remove kmap_atomic interfaceChristian König
Neither used nor correctly implemented anywhere. Just completely remove the interface. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://patchwork.freedesktop.org/patch/226645/
2018-06-20dma_buf: remove device parameter from attach callback v2Christian König
The device parameter is completely unused because it is available in the attachment structure as well. v2: fix kerneldoc as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/226643/
2018-03-28drm/udl: Get rid of dev->struct_mutex usageDaniel Vetter
It's only used to protect our page list, and only when we know we have a full reference. This means none of these code paths can ever race with the final unref, and hence we do not need dev->struct_mutex serialization and can simply switch to our own locking. For more context the only magic the locked gem_free_object provides is that it prevents concurrent final unref (and destruction) of gem objects while anyone is holding dev->struct_mutex. This was used by i915 (and other drivers) to implement eviction handling with less headaches. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180327082356.24516-3-daniel.vetter@ffwll.ch
2017-07-03drm/udl: dma-buf: Constify dma_buf_ops structures.Arvind Yadav
dma_buf_ops are not supposed to change at runtime. All functions working with dma_buf_ops provided by <linux/dma-buf.h> work with const dma_buf_ops. So mark the non-const structs as const. File size before: text data bss dec hex filename 2002 112 0 2114 842 drivers/gpu/drm/udl/udl_dmabuf.o File size After adding 'const': text data bss dec hex filename 2114 0 0 2114 842 drivers/gpu/drm/udl/udl_dmabuf.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/cb4dfac90e85e2270779331f8cb10b635042bad7.1498912415.git.arvind.yadav.cs@gmail.com
2017-05-18drm: drop drm_[cm]alloc* helpersMichal Hocko
Now that drm_[cm]alloc* helpers are simple one line wrappers around kvmalloc_array and drm_free_large is just kvfree alias we can drop them and replace by their native forms. This shouldn't introduce any functional change. Changes since v1 - fix typo in drivers/gpu//drm/etnaviv/etnaviv_gem.c - noticed by 0day build robot Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Michal Hocko <mhocko@suse.com>drm: drop drm_[cm]alloc* helpers [danvet: Fixup vgem which grew another user very recently.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Christian König <christian.koenig@amd.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170517122312.GK18247@dhcp22.suse.cz
2017-04-20dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macroLogan Gunthorpe
Seeing the kunmap_atomic dma_buf_ops share the same name with a macro in highmem.h, the former can be aliased if any dma-buf user includes that header. I'm personally trying to include highmem.h inside scatterlist.h and this breaks the dma-buf code proper. Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP. To maintain consistency I've renamed all four of kmap* and kunmap* to be map* and unmap*. (Even though only kmap_atomic presently conflicts.) [1] https://www.spinics.net/lists/target-devel/msg15070.html Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1492630570-879-1-git-send-email-logang@deltatee.com
2016-10-05drm/prime: Take a ref on the drm_dev when exporting a dma_bufChris Wilson
dma_buf may live a long time, longer than the last direct user of the driver. We already hold a reference to the owner module (that prevents the object code from disappearing), but there is no reference to the drm_dev - so the pointers to the driver backend themselves may vanish. v2: Resist temptation to fix the bug in armada_gem.c not setting the correct flags on the exported dma-buf (it should pass the flags through and not be arbitrarily setting O_RDWR). Use a common wrapper for exporting the dmabuf and acquiring the reference to the drm_device. Testcase: igt/vgem_basic/unload Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Petri Latvala <petri.latvala@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org Tested-by: Petri Latvala <petri.latvala@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161005122145.1507-2-chris@chris-wilson.co.uk
2015-04-21dma-buf: cleanup dma_buf_export() to make it easily extensibleSumit Semwal
At present, dma_buf_export() takes a series of parameters, which makes it difficult to add any new parameters for exporters, if required. Make it simpler by moving all these parameters into a struct, and pass the struct * as parameter to dma_buf_export(). While at it, unite dma_buf_export_named() with dma_buf_export(), and change all callers accordingly. Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2014-11-26drm/udl: properly check for error pointersHaixia Shi
The drm_prime_pages_to_sg() function never returns NULL pointers, only error pointers and valid pointers. Signed-off-by: Haixia Shi <hshi@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-26drm/udl: handle page mapping in dmabuf export.Haixia Shi
Fixes dmabuf export failure with -E_NOMEM when the page is not mapped. Signed-off-by: Haixia Shi <hshi@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-11-20drm/udl: add support to export a handle to a FD on UDL.Haixia Shi
Only importing an FD to a handle is currently supported on UDL, but the exporting functionality is equally useful. Signed-off-by: Haixia Shi <hshi@chromium.org> Reviewed-by: Stéphane Marchesin <marcheu@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com>