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b0b0d811 |
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07-Sep-2023 |
Jason-JH.Lin <jason-jh.lin@mediatek.com> |
drm/mediatek: Fix coverity issue with unintentional integer overflow 1. Instead of multiplying 2 variable of different types. Change to assign a value of one variable and then multiply the other variable. 2. Add a int variable for multiplier calculation instead of calculating different types multiplier with dma_addr_t variable directly. Fixes: 1a64a7aff8da ("drm/mediatek: Fix cursor plane no update") Signed-off-by: Jason-JH.Lin <jason-jh.lin@mediatek.com> Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20230907091425.9526-1-jason-jh.lin@mediatek.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
dcc583c2 |
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04-Oct-2023 |
Chen-Yu Tsai <wenst@chromium.org> |
drm/mediatek: Correctly free sg_table in gem prime vmap The MediaTek DRM driver implements GEM PRIME vmap by fetching the sg_table for the object, iterating through the pages, and then vmapping them. In essence, unlike the GEM DMA helpers which vmap when the object is first created or imported, the MediaTek version does it on request. Unfortunately, the code never correctly frees the sg_table contents. This results in a kernel memory leak. On a Hayato device with a text console on the internal display, this results in the system running out of memory in a few days from all the console screen cursor updates. Add sg_free_table() to correctly free the contents of the sg_table. This was missing despite explicitly required by mtk_gem_prime_get_sg_table(). Also move the "out" shortcut label to after the kfree() call for the sg_table. Having sg_free_table() together with kfree() makes more sense. The shortcut is only used when the object already has a kernel address, in which case the pointer is NULL and kfree() does nothing. Hence this change causes no functional change. Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function") Cc: <stable@vger.kernel.org> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: CK Hu <ck.hu@mediatek.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20231004083226.1940055-1-wenst@chromium.org/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
379091e0 |
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06-Jul-2023 |
Sui Jingfeng <suijingfeng@loongson.cn> |
drm/mediatek: Fix potential memory leak if vmap() fail Also return -ENOMEM if such a failure happens, the implement should take responsibility for the error handling. Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function") Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> Reviewed-by: CK Hu <ck.hu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patchwork.kernel.org/project/dri-devel/patch/20230706134000.130098-1-suijingfeng@loongson.cn/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
1c71222e |
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26-Jan-2023 |
Suren Baghdasaryan <surenb@google.com> |
mm: replace vma->vm_flags direct modifications with modifier calls Replace direct modifications to vma->vm_flags with calls to modifier functions to be able to track flag changes and to keep vma locking correctness. [akpm@linux-foundation.org: fix drivers/misc/open-dice.c, per Hyeonggon Yoo] Link: https://lkml.kernel.org/r/20230126193752.297968-5-surenb@google.com Signed-off-by: Suren Baghdasaryan <surenb@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arjun Roy <arjunroy@google.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: David Howells <dhowells@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: David Rientjes <rientjes@google.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Joel Fernandes <joelaf@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kent Overstreet <kent.overstreet@linux.dev> Cc: Laurent Dufour <ldufour@linux.ibm.com> Cc: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Minchan Kim <minchan@google.com> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Oskolkov <posk@google.com> Cc: Peter Xu <peterx@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Punit Agrawal <punit.agrawal@bytedance.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Shakeel Butt <shakeelb@google.com> Cc: Soheil Hassas Yeganeh <soheil@google.com> Cc: Song Liu <songliubraving@fb.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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#
4deef811 |
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19-Jan-2023 |
Rob Clark <robdclark@chromium.org> |
drm/mediatek: Drop unbalanced obj unref In the error path, mtk_drm_gem_object_mmap() is dropping an obj reference that it doesn't own. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230119231255.2883365-1-robdclark@gmail.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
2ea8aec5 |
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19-Jan-2023 |
Rob Clark <robdclark@chromium.org> |
drm/mediatek: Remove dependency on GEM DMA helper It appears that the dependency on the DMA helpers was only for drm_gem_dma_vm_ops. Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230119224052.2879106-1-robdclark@gmail.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
4744cde0 |
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10-Jan-2023 |
Miles Chen <miles.chen@mediatek.com> |
drm/mediatek: Use NULL instead of 0 for NULL pointer Use NULL for NULL pointer to fix the following sparse warning: drivers/gpu/drm/mediatek/mtk_drm_gem.c:265:27: sparse: warning: Using plain integer as NULL pointer Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function") Signed-off-by: Miles Chen <miles.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230111024443.24559-1-miles.chen@mediatek.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
4a83c26a |
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01-Aug-2022 |
Danilo Krummrich <dakr@redhat.com> |
drm/gem: rename GEM CMA helpers to GEM DMA helpers Rename "GEM CMA" helpers to "GEM DMA" helpers - considering the hierarchy of APIs (mm/cma -> dma -> gem dma) calling them "GEM DMA" seems to be more applicable. Besides that, commit e57924d4ae80 ("drm/doc: Task to rename CMA helpers") requests to rename the CMA helpers and implies that people seem to be confused about the naming. In order to do this renaming the following script was used: ``` #!/bin/bash DIRS="drivers/gpu include/drm Documentation/gpu" REGEX_SYM_UPPER="[0-9A-Z_\-]" REGEX_SYM_LOWER="[0-9a-z_\-]" REGEX_GREP_UPPER="(${REGEX_SYM_UPPER}*)(GEM)_CMA_(${REGEX_SYM_UPPER}*)" REGEX_GREP_LOWER="(${REGEX_SYM_LOWER}*)(gem)_cma_(${REGEX_SYM_LOWER}*)" REGEX_SED_UPPER="s/${REGEX_GREP_UPPER}/\1\2_DMA_\3/g" REGEX_SED_LOWER="s/${REGEX_GREP_LOWER}/\1\2_dma_\3/g" # Find all upper case 'CMA' symbols and replace them with 'DMA'. for ff in $(grep -REHl "${REGEX_GREP_UPPER}" $DIRS) do sed -i -E "$REGEX_SED_UPPER" $ff done # Find all lower case 'cma' symbols and replace them with 'dma'. for ff in $(grep -REHl "${REGEX_GREP_LOWER}" $DIRS) do sed -i -E "$REGEX_SED_LOWER" $ff done # Replace all occurrences of 'CMA' / 'cma' in comments and # documentation files with 'DMA' / 'dma'. for ff in $(grep -RiHl " cma " $DIRS) do sed -i -E "s/ cma / dma /g" $ff sed -i -E "s/ CMA / DMA /g" $ff done # Rename all 'cma_obj's to 'dma_obj'. for ff in $(grep -RiHl "cma_obj" $DIRS) do sed -i -E "s/cma_obj/dma_obj/g" $ff done ``` Only a few more manual modifications were needed, e.g. reverting the following modifications in some DRM Kconfig files - select CMA if HAVE_DMA_CONTIGUOUS + select DMA if HAVE_DMA_CONTIGUOUS as well as manually picking the occurrences of 'CMA'/'cma' in comments and documentation which relate to "GEM CMA", but not "FB CMA". Also drivers/gpu/drm/Makefile was fixed up manually after renaming drm_gem_cma_helper.c to drm_gem_dma_helper.c. This patch is compile-time tested building a x86_64 kernel with `make allyesconfig && make drivers/gpu/drm`. Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Liviu Dudau <liviu.dudau@arm.com> #drivers/gpu/drm/arm Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-4-dakr@redhat.com
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#
7938f421 |
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04-Feb-2022 |
Lucas De Marchi <lucas.demarchi@intel.com> |
dma-buf-map: Rename to iosys-map Rename struct dma_buf_map to struct iosys_map and corresponding APIs. Over time dma-buf-map grew up to more functionality than the one used by dma-buf: in fact it's just a shim layer to abstract system memory, that can be accessed via regular load and store, from IO memory that needs to be acessed via arch helpers. The idea is to extend this API so it can fulfill other needs, internal to a single driver. Example: in the i915 driver it's desired to share the implementation for integrated graphics, which uses mostly system memory, with discrete graphics, which may need to access IO memory. The conversion was mostly done with the following semantic patch: @r1@ @@ - struct dma_buf_map + struct iosys_map @r2@ @@ ( - DMA_BUF_MAP_INIT_VADDR + IOSYS_MAP_INIT_VADDR | - dma_buf_map_set_vaddr + iosys_map_set_vaddr | - dma_buf_map_set_vaddr_iomem + iosys_map_set_vaddr_iomem | - dma_buf_map_is_equal + iosys_map_is_equal | - dma_buf_map_is_null + iosys_map_is_null | - dma_buf_map_is_set + iosys_map_is_set | - dma_buf_map_clear + iosys_map_clear | - dma_buf_map_memcpy_to + iosys_map_memcpy_to | - dma_buf_map_incr + iosys_map_incr ) @@ @@ - #include <linux/dma-buf-map.h> + #include <linux/iosys-map.h> Then some files had their includes adjusted and some comments were update to remove mentions to dma-buf-map. Since this is not specific to dma-buf anymore, move the documentation to the "Bus-Independent Device Accesses" section. v2: - Squash patches v3: - Fix wrong removal of dma-buf.h from MAINTAINERS - Move documentation from dma-buf.rst to device-io.rst v4: - Change documentation title and level Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220204170541.829227-1-lucas.demarchi@intel.com
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#
500007eb |
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24-Jun-2021 |
Thomas Zimmermann <tzimmermann@suse.de> |
drm/mediatek: Implement mmap as GEM object function Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective mediatek functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
c67e6279 |
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07-Oct-2020 |
Christian König <christian.koenig@amd.com> |
drm/prime: split array import functions v4 Mapping the imported pages of a DMA-buf into an userspace process doesn't work as expected. But we have reoccurring requests on this approach, so split the functions for this and document that dma_buf_mmap() needs to be used instead. v2: split it into two functions v3: rebased on latest changes v4: update commit message a bit Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/403838/
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eea70586 |
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22-Sep-2020 |
Thomas Zimmermann <tzimmermann@suse.de> |
drm/mediatek: Introduce GEM object functions GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in mediatek. The only exception is gem_prime_mmap, which is non-trivial to convert. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
7e542ff8 |
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09-Nov-2020 |
Thomas Zimmermann <tzimmermann@suse.de> |
drm/mediatek: Use struct dma_buf_map in GEM vmap ops Fixes a build failure with mediatek. This change was supposed to be part of commit 49a3f51dfeee ("drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends"), but mediatek was forgotten. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Fixes: 49a3f51dfeee ("drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backends") Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Christian König <christian.koenig@amd.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Dave Airlie <airlied@redhat.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Russell King <linux+etnaviv@armlinux.org.uk> Cc: Christian Gmeiner <christian.gmeiner@gmail.com> Cc: Qiang Yu <yuq825@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Rob Herring <robh@kernel.org> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: Steven Price <steven.price@arm.com> Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Sandy Huang <hjc@rock-chips.com> Cc: "Heiko Stübner" <heiko@sntech.de> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Sean Paul <sean@poorly.run> Cc: Eric Anholt <eric@anholt.net> Cc: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com> Cc: Melissa Wen <melissa.srw@gmail.com> Cc: Haneen Mohammed <hamohammed.sa@gmail.com> Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Emil Velikov <emil.velikov@collabora.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Arunpravin <apaneers@amd.com> Cc: Huang Rui <ray.huang@amd.com> Cc: Luben Tuikov <luben.tuikov@amd.com> Cc: Madhav Chauhan <madhav.chauhan@amd.com> Cc: Nirmoy Das <Nirmoy.Das@amd.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: dri-devel@lists.freedesktop.org Cc: etnaviv@lists.freedesktop.org Cc: lima@lists.freedesktop.org Cc: nouveau@lists.freedesktop.org Cc: virtualization@lists.linux-foundation.org Cc: spice-devel@lists.freedesktop.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Cc: xen-devel@lists.xenproject.org Link: https://patchwork.freedesktop.org/patch/msgid/20201109103242.19544-3-tzimmermann@suse.de
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#
84274de6 |
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22-Sep-2020 |
Thomas Zimmermann <tzimmermann@suse.de> |
drm/mediatek: Introduce GEM object functions GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in mediatek. The only exception is gem_prime_mmap, which is non-trivial to convert. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200923102159.24084-9-tzimmermann@suse.de
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90dcf444 |
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08-May-2020 |
Marek Szyprowski <m.szyprowski@samsung.com> |
drm: mediatek: use common helper for extracting pages array Use common helper for converting a sg_table object into struct page pointer array. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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960db7fc |
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08-May-2020 |
Marek Szyprowski <m.szyprowski@samsung.com> |
drm: mediatek: use common helper for a scatterlist contiguity check Use common helper for checking the contiguity of the imported dma-buf and do this check before allocating resources, so the error path is simpler. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
9a67bc4a |
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20-Apr-2020 |
Anand K Mistry <amistry@chromium.org> |
drm/mediatek: Stop iterating dma addresses when sg_dma_len() == 0 If dma_map_sg() merges pages when creating the mapping, only the first entries will have a valid sg_dma_address() and sg_dma_len(), followed by entries with sg_dma_len() == 0. Signed-off-by: Anand K Mistry <amistry@google.com> Signed-off-by: Anand K Mistry <amistry@chromium.org> Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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#
556372df |
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15-May-2020 |
Emil Velikov <emil.velikov@collabora.com> |
drm/mediatek: remove _unlocked suffix in drm_gem_object_put_unlocked Spelling out _unlocked for each and every driver is a annoying. Especially if we consider how many drivers, do not know (or need to) about the horror stories involving struct_mutex. Just drop the suffix. It makes the API cleaner. Done via the following script: __from=drm_gem_object_put_unlocked __to=drm_gem_object_put for __file in $(git grep --name-only $__from); do sed -i "s/$__from/$__to/g" $__file; done Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: David Airlie <airlied@linux.ie> Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20200515095118.2743122-23-emil.l.velikov@gmail.com
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2ec35bd2 |
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23-Oct-2019 |
Wambui Karuga <wambui.karugax@gmail.com> |
drm/mediatek: remove cast to pointers passed to kfree Remove unnecessary casts to pointer types passed to kfree. Issue detected by coccinelle: @@ type t1; expression *e; @@ -kfree((t1 *)e); +kfree(e); Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191023111107.9972-1-wambui.karugax@gmail.com
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1eef08cb |
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18-Jul-2019 |
Sam Ravnborg <sam@ravnborg.org> |
drm/mediatek: direct include of drm.h in mtk_drm_gem.c Do not rely on including drm.h from drm_file.h, as the include in drm_file.h will be dropped. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Sean Paul <sean@poorly.run> Acked-by: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Link: https://patchwork.freedesktop.org/patch/msgid/20190718161507.2047-11-sam@ravnborg.org
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9aef5867 |
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16-Jul-2019 |
Sam Ravnborg <sam@ravnborg.org> |
drm/mediatek: drop use of drmP.h Drop use of the deprecated drmP.h header file. While touching the include files divide them up in blocks in the typical order: \#include <linux/*> \#include <video/*> \#include <drm/*> \#include "" And sort the includes in the blocks Add the necessary includes to fix build after removal of drmP.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: CK Hu <ck.hu@mediatek.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Link: https://patchwork.freedesktop.org/patch/msgid/20190716064220.18157-20-sam@ravnborg.org
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1802d0be |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 Based on 1 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 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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46a3b9fc |
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27-Mar-2019 |
Yongqiang Niu <yongqiang.niu@mediatek.com> |
drm/mediatek: respect page offset for PRIME mmap calls Respect page offset for PRIME mmap calls Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com> Signed-off-by: CK Hu <ck.hu@mediatek.com>
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3df64d7b |
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14-Jan-2019 |
CK Hu <ck.hu@mediatek.com> |
drm/mediatek: Implement gem prime vmap/vunmap function For some application which need kernel virtual address, such as fbcon, implement these function to map/unmap kernel virtual address of prime buffer. Signed-off-by: CK Hu <ck.hu@mediatek.com>
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1e109115 |
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21-Nov-2017 |
Gomonovych, Vasyl <gomonovych@gmail.com> |
drm/mediatek: Use ERR_CAST instead of ERR_PTR(PTR_ERR()) Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...)). drivers/gpu/drm/mediatek/mtk_drm_gem.c:223:9-16: WARNING: ERR_CAST can be used with mtk_gem Generated by: scripts/coccinelle/api/err_cast.cocci Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: CK Hu <ck.hu@mediatek.com>
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1365e2db |
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11-Aug-2017 |
Cihangir Akturk <cakturk@gmail.com> |
drm/mediatek: switch to drm_*_get(), drm_*_put() helpers 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 Signed-off-by: Cihangir Akturk <cakturk@gmail.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/1502454794-28558-14-git-send-email-cakturk@gmail.com
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819e0a98 |
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23-Jul-2017 |
Noralf Trønnes <noralf@tronnes.org> |
drm/mediatek: Use .dumb_map_offset and .dumb_destroy defaults This driver can use the drm_driver.dumb_destroy and drm_driver.dumb_map_offset defaults, so no need to set them. Cc: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-23-git-send-email-noralf@tronnes.org
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00085f1e |
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03-Aug-2016 |
Krzysztof Kozlowski <krzk@kernel.org> |
dma-mapping: use unsigned long for dma_attrs The dma-mapping core and the implementations do not change the DMA attributes passed by pointer. Thus the pointer can point to const data. However the attributes do not have to be a bitfield. Instead unsigned long will do fine: 1. This is just simpler. Both in terms of reading the code and setting attributes. Instead of initializing local attributes on the stack and passing pointer to it to dma_set_attr(), just set the bits. 2. It brings safeness and checking for const correctness because the attributes are passed by value. Semantic patches for this change (at least most of them): virtual patch virtual context @r@ identifier f, attrs; @@ f(..., - struct dma_attrs *attrs + unsigned long attrs , ...) { ... } @@ identifier r.f; @@ f(..., - NULL + 0 ) and // Options: --all-includes virtual patch virtual context @r@ identifier f, attrs; type t; @@ t f(..., struct dma_attrs *attrs); @@ identifier r.f; @@ f(..., - NULL + 0 ) Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Acked-by: Mark Salter <msalter@redhat.com> [c6x] Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris] Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm] Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp] Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core] Acked-by: David Vrabel <david.vrabel@citrix.com> [xen] Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb] Acked-by: Joerg Roedel <jroedel@suse.de> [iommu] Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon] Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32] Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc] Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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de4ae068 |
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18-May-2016 |
Arnd Bergmann <arnd@arndb.de> |
drm: mediatek: fixup drm_gem_object_lookup API change The drm_gem_object_lookup() function prototype changed while this driver was added, so it fails to build now: drivers/gpu/drm/mediatek/mtk_drm_gem.c: In function 'mtk_drm_gem_dumb_map_offset': drivers/gpu/drm/mediatek/mtk_drm_gem.c:142:30: error: passing argument 1 of 'drm_gem_object_lookup' from incompatible pointer type [-Werror=incompatible-pointer-types] obj = drm_gem_object_lookup(dev, file_priv, handle); This fixes the new caller as well. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: a8ad0bd84f98 ("drm: Remove unused drm_device from drm_gem_object_lookup()") Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1463587653-3035181-4-git-send-email-arnd@arndb.de
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119f5173 |
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04-Jan-2016 |
CK Hu <ck.hu@mediatek.com> |
drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. This patch adds an initial DRM driver for the Mediatek MT8173 DISP subsystem. It currently supports two fixed output streams from the OVL0/OVL1 sources to the DSI0/DPI0 sinks, respectively. Signed-off-by: CK Hu <ck.hu@mediatek.com> Signed-off-by: YT Shen <yt.shen@mediatek.com> Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com> Signed-off-by: Mao Huang <littlecvr@chromium.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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