- 17 Sep, 2020 10 commits
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Dave Airlie authored
This pattern is called in a few places, just clean it up. Reviewed-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200917043040.146575-6-airlied@gmail.com
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Dave Airlie authored
Now the bind functions have all the protection explicitly the drivers can just call them directly, and the api can be unexported Reviewed-by:
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Dave Airlie authored
This moves unbind into the driver side on destroy paths. Reviewed-by:
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Dave Airlie authored
Call the driver first and have it call the common code cleanup. This is useful later to fix unbind. Reviewed-by:
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Dave Airlie authored
This moves the generic tracking into the drivers and protects against reentrancy in the drivers. It fixes up radeon and agp to be able to query the bound status as that is required. Reviewed-by:
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Christian König authored
Extern is the default attribute for functions anyway. Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/390972/
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Daniel Vetter authored
GPU drivers need this in their shrinkers, to be able to throw out mmap'ed buffers. Note that we also need dma_resv_lock in shrinkers, but that loop is resolved by trylocking in shrinkers. So full hierarchy is now (ignore some of the other branches we already have primed): mmap_read_lock -> dma_resv -> shrinkers -> i_mmap_lock_write I hope that's not inconsistent with anything mm or fs does, adding relevant people. Reviewed-by:
Thomas Hellström <thomas.hellstrom@intel.com> Reviewed-by:
Daniel Vetter <daniel.vetter@intel.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: "Christian König" <christian.koenig@amd.com> Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Cc: Dave Chinner <david@fromorbit.com> Cc: Qian Cai <cai@lca.pw> Cc: linux-xfs@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Cc: Thomas Hellström (Intel) <thomas_os@shipmail.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: linux-mm@kvack.org Cc: linux-rdma@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200728135839.1035515-1-daniel.vetter@ffwll.ch
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Wang Qing authored
Change the comment typo: "manger" -> "manager". Signed-off-by:
Wang Qing <wangqing@vivo.com> Signed-off-by:
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Lukas Bulwahn authored
Commit f15a3ea8 ("MAINTAINERS: Add ASPEED BMC GFX DRM driver entry") does not mention that linux-aspeed@lists.ozlabs.org is moderated for non-subscribers, but the other three entries for linux-aspeed@lists.ozlabs.org do. By 'majority vote' among entries, let us assume it was just missed here and adjust it to be consistent with others. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by:
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Christian König authored
Unexport ttm_check_under_lowerlimit. Make ttm_bo_acc_size static and unexport it. Remove ttm_get_kernel_zone_memory_size. Signed-off-by:
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- 16 Sep, 2020 8 commits
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Maxime Ripard authored
Merge branch 'virtio-shm' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse into drm-misc-next Topic pull request for core virtio changes that will be required by the DRM driver. Signed-off-by:
Maxime Ripard <maxime@cerno.tech> From: Gurchetan Singh <gurchetansingh@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/CAAfnVBn2BzXWFY3hhjDxd5q0P2_JWn-HdkVxgS94x9keAUZiow@mail.gmail.com
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Thomas Zimmermann authored
An active cursor plane requires a valid display mode. Change the commit_tail callback, so that it sets up the CRTC's mode before updating planes. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
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Thomas Zimmermann authored
This change simplifies ast's modesetting code. The display mode is now programmed from within the CRTC's atomic_enable(), which only runs if we actually want to program the mode. Corresponding code in atomic_flush() is being removed. Also removed is atomic_begin(), which serves no purpose at all. Signed-off-by:
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Thomas Zimmermann authored
The ast HW cursor requires the primary plane and CRTC to display at a valid mode and format. This is not the case while switching display modes, which can lead to the screen turing permanently dark. As a workaround, the ast driver now disables active planes while the mode or format switch takes place. It also synchronizes with the vertical refresh to give CRTC and planes some time to catch up on each other. The active planes planes (primary or cursor) will be re-enabled by each plane's atomic_update() function. v3: * move the logic into the CRTC's atomic_disable function v2: * move the logic into the commit-tail function Signed-off-by:
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Thomas Zimmermann authored
The atomic modesetting code tried to distinguish format changes from full modesetting operations. But the implementation was buggy and the format registers were often updated even for simple pageflips. Fix this problem by handling format changes in the primary plane's update function. v3: * program format in primary plane's update function Signed-off-by:
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Thomas Zimmermann authored
I'm adding myself as reviewer for ast, mgag200 and udl. I've already been keeping these drivers in shape for a while. While at it I'm also setting the list and tree for ast and mgag200, and update each driver's status to Supported. Working on these drivers is part of my job. Signed-off-by:
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Stefan Agner authored
The lcdif IP does not support a framebuffer pitch (stride) other than framebuffer width. Check for equality and reject the framebuffer otherwise. This prevents a distorted picture when using 640x800 and running the Mesa graphics stack. Mesa tries to use a cache aligned stride, which leads at that particular resolution to width != stride. Currently Mesa has no fallback behavior, but rejecting this configuration allows userspace to handle the issue correctly. Fixes: 45d59d70 ("drm: Add new driver for MXSFB controller") Signed-off-by:
Stefan Agner <stefan@agner.ch> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200908141654.266836-1-stefan@agner.ch
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Tian Tao authored
Handing the return value of drm_universal_plane_init to fix the following W=1 kernel build warning(s): vc4_plane.c: In function ‘vc4_plane_init’: vc4_plane.c:1340:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Reviewed-by:
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- 15 Sep, 2020 14 commits
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Dave Airlie authored
Just use the top bit of page flags to store the populated state. Reviewed-by:
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Dave Airlie authored
Move bound up into the bo object, and keep populated with the tt object. The ghost object handling needs to follow the flags at the bo level now instead of it being part of the ttm tt object. Reviewed-by:
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Dave Airlie authored
Move these up to the bo level, moving ttm_tt to just being backing store. Next step is to move the bound flag out. Reviewed-by:
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Dave Airlie authored
Drivers have to call populate themselves now before binding. Reviewed-by:
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Dave Airlie authored
This just makes things easier later. Reviewed-by:
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Dave Airlie authored
All places this was called was using bo->ttm either direct or indirectly. v2: move to ttm_bo Reviewed-by:
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Dave Airlie authored
This adds 2 getters and 4 setters, however unbound and populated are currently the same thing, this will change, it also drops a BUG_ON that seems not that useful. Reviewed-by:
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Christian König authored
Instead of letting TTM make an educated guess based on some mask all drivers should just specify what caching they want for their CPU mappings. Signed-off-by:
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Christian König authored
Instead of letting TTM masking the caching bits specify directly what the driver needs. Signed-off-by:
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Christian König authored
As far as I can tell this was never used either and we just always fallback to the order cached > wc > uncached anyway. Signed-off-by:
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Enric Balletbo i Serra authored
The get_edid() callback can be triggered anytime by an ioctl, i.e drm_mode_getconnector (ioctl) -> drm_helper_probe_single_connector_modes -> drm_bridge_connector_get_modes -> ps8640_bridge_get_edid Actually if the bridge pre_enable() function was not called before get_edid(), the driver will not be able to get the EDID properly and display will not work until a second get_edid() call is issued and if pre_enable() is called before. The side effect of this, for example, is that you see anything when `Frecon` starts, neither the splash screen, until the graphical session manager starts. To fix this we need to make sure that all we need is enabled before reading the EDID. This means the following: 1. If get_edid() is called before having the device powered we need to power on the device. In such case, the driver will power off again the device. 2. If get_edid() is called after having the device powered, all should just work. We added a powered flag in order to avoid recurrent calls to ps8640_bridge_poweron() and unneeded delays. 3. This seems to be specific for this device, but we need to make sure the panel is powered on before do a power on cycle on this device. Otherwise the device fails to retrieve the EDID. Signed-off-by:Enric Balletbo i Serra <enric.balletbo@collabora.com> Tested-by:
Bilal Wasim <bwasim.lkml@gmail.com> Acked-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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Gerd Hoffmann authored
Usually we wait for the host to complete the unref request, then cleanup the guest-side state of the object in the completion callback. When submitting the unref command failed the completion callback will not be called though, so cleanup right away. Fixes a WARN on stale mm entries on driver shutdown. Signed-off-by:
Gerd Hoffmann <kraxel@redhat.com> Reviewed-by:
Gurchetan Singh <gurchetansingh@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20200908070723.6394-4-kraxel@redhat.com
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Gerd Hoffmann authored
In case queuing virtio commands fails (can happen when the device got unplugged) pass up the error. Signed-off-by:
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Gerd Hoffmann authored
Use managed init call to simplify cleanup. Signed-off-by:
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- 14 Sep, 2020 8 commits
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Paul Cercueil authored
Ingenic SoCs are most notably used in cheap chinese handheld gaming consoles. There, the games and applications generally render in software directly into GEM buffers. Traditionally, GEM buffers are mapped write-combine. Writes to the buffer are accelerated, and reads are slow. Application doing lots of alpha-blending paint inside shadow buffers, which is then memcpy'd into the final GEM buffer. On recent Ingenic SoCs however, it is much faster to have a fully cached GEM buffer, in which applications paint directly, and whose data is invalidated before scanout, than having a write-combine GEM buffer, even when alpha blending is not used. Add an optional 'cached_gem_buffers' parameter to the ingenic-drm driver to allow GEM buffers to be mapped fully-cached, in order to speed up software rendering. v2: Use standard noncoherent DMA APIs v3: Use damage clips instead of invalidating full frames v4: Avoid dma_pgprot() which is not exported. Using vm_get_page_prot() is enough in this case. v5: - Avoid calling drm_gem_cma_prime_mmap(). It has the side effect that an extra object reference is obtained, which causes our dumb buffers to never be freed. It should have been drm_gem_cma_mmap_obj(). However, our custom mmap function only differs with one flag, so we can cleanly handle both modes in ingenic_drm_gem_mmap(). - Call drm_gem_vm_close() if drm_mmap_attrs() failed, just like in drm_gem_cma_mmap_obj(). Signed-off-by:Paul Cercueil <paul@crapouillou.net> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200912195639.176001-1-paul@crapouillou.net
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Ville Syrjälä authored
We update the timestamping constants per-crtc explicitly in intel_crtc_update_active_timings(). Furtermore the helper will use uapi.adjusted_mode whereas we want hw.adjusted_mode. Thus let's drop the helper call an rely on what we already have in intel_crtc_update_active_timings(). We can now also drop the hw.adjusted_mode -> uapi.adjusted_mode copy hack that was added to keep the helper from deriving the timestamping constants from the wrong thing. Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200907120026.6360-3-ville.syrjala@linux.intel.comReviewed-by:
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Ville Syrjälä authored
drm/atomic-helper: Remove the timestamping constant update from drm_atomic_helper_update_legacy_modeset_state() The timestamping constants have nothing to do with any legacy state so should not be updated from drm_atomic_helper_update_legacy_modeset_state(). Let's make everyone call drm_atomic_helper_calc_timestamping_constants() directly instead of relying on drm_atomic_helper_update_legacy_modeset_state() to call it. @@ expression S; @@ - drm_atomic_helper_calc_timestamping_constants(S); @@ expression D, S; @@ drm_atomic_helper_update_legacy_modeset_state(D, S); + drm_atomic_helper_calc_timestamping_constants(S); v2: Update drm_crtc_vblank_helper_get_vblank_timestamp{,_internal}() docs (Daniel) Signed-off-by: -
Ville Syrjälä authored
Put the vblank timestamping constants update loop into its own function. It has no business living inside drm_atomic_helper_update_legacy_modeset_state() so we'll be wanting to move it out entirely. As a first step we'll still call it from drm_atomic_helper_update_legacy_modeset_state(). v2: Drop comment about 'legacy state' in the new function Signed-off-by:
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Maxime Ripard authored
Paul Cercueil needs some patches in -rc5 to apply new patches for ingenic properly. Signed-off-by: -
Daniel Vetter authored
Paul needs 1a21e5b9 ("drm/ingenic: Fix leak of device_node pointer") and 3b5b005e ("drm/ingenic: Fix driver not probing when IPU port is missing") from -fixes to be able to merge further ingenic patches into -next. Signed-off-by:
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Jia Yang authored
I got a use-after-free report when doing some fuzz test: If ttm_bo_init() fails, the "gbo" and "gbo->bo.base" will be freed by ttm_buffer_object_destroy() in ttm_bo_init(). But then drm_gem_vram_create() and drm_gem_vram_init() will free "gbo" and "gbo->bo.base" again. BUG: KMSAN: use-after-free in drm_vma_offset_remove+0xb3/0x150 CPU: 0 PID: 24282 Comm: syz-executor.1 Tainted: G B W 5.7.0-rc4-msan #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 Call Trace: __dump_stack dump_stack+0x1c9/0x220 kmsan_report+0xf7/0x1e0 __msan_warning+0x58/0xa0 drm_vma_offset_remove+0xb3/0x150 drm_gem_free_mmap_offset drm_gem_object_release+0x159/0x180 drm_gem_vram_init drm_gem_vram_create+0x7c5/0x990 drm_gem_vram_fill_create_dumb drm_gem_vram_driver_dumb_create+0x238/0x590 drm_mode_create_dumb drm_mode_create_dumb_ioctl+0x41d/0x450 drm_ioctl_kernel+0x5a4/0x710 drm_ioctl+0xc6f/0x1240 vfs_ioctl ksys_ioctl __do_sys_ioctl __se_sys_ioctl+0x2e9/0x410 __x64_sys_ioctl+0x4a/0x70 do_syscall_64+0xb8/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4689b9 Code: fd e0 fa ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb e0 fa ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f368fa4dc98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000076bf00 RCX: 00000000004689b9 RDX: 0000000020000240 RSI: 00000000c02064b2 RDI: 0000000000000003 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000004d17e0 R14: 00007f368fa4e6d4 R15: 000000000076bf0c Uninit was created at: kmsan_save_stack_with_flags kmsan_internal_poison_shadow+0x66/0xd0 kmsan_slab_free+0x6e/0xb0 slab_free_freelist_hook slab_free kfree+0x571/0x30a0 drm_gem_vram_destroy ttm_buffer_object_destroy+0xc8/0x130 ttm_bo_release kref_put ttm_bo_put+0x117d/0x23e0 ttm_bo_init_reserved+0x11c0/0x11d0 ttm_bo_init+0x289/0x3f0 drm_gem_vram_init drm_gem_vram_create+0x775/0x990 drm_gem_vram_fill_create_dumb drm_gem_vram_driver_dumb_create+0x238/0x590 drm_mode_create_dumb drm_mode_create_dumb_ioctl+0x41d/0x450 drm_ioctl_kernel+0x5a4/0x710 drm_ioctl+0xc6f/0x1240 vfs_ioctl ksys_ioctl __do_sys_ioctl __se_sys_ioctl+0x2e9/0x410 __x64_sys_ioctl+0x4a/0x70 do_syscall_64+0xb8/0x160 entry_SYSCALL_64_after_hwframe+0x44/0xa9 If ttm_bo_init() fails, the "gbo" will be freed by ttm_buffer_object_destroy() in ttm_bo_init(). But then drm_gem_vram_create() and drm_gem_vram_init() will free "gbo" again. Reported-by:
Hulk Robot <hulkci@huawei.com> Reported-by:
butt3rflyh4ck <butterflyhuangxx@gmail.com> Signed-off-by:
Jia Yang <jiayang5@huawei.com> Signed-off-by:
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Thomas Zimmermann authored
VRAM helpers support ref counting for pin and vmap operations, no need to avoid these operations by employing the internal kmap interface. Just use drm_gem_vram_vmap() and let it handle the details. Also unexport the kmap interfaces from VRAM helpers. Vboxvideo was the last user of these internal functions. v2: * fixed a comma in commit description Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200911075922.19317-1-tzimmermann@suse.de
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