- 05 Sep, 2018 8 commits
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Jagan Teki authored
Display Engine(DE2) in Allwinner A64 has two mixers and tcons. The routing for mixer0 is through tcon0 and connected to LVDS/RGB/MIPI-DSI controller. The routing for mixer1 is through tcon1 and connected to HDMI. Signed-off-by:
Jagan Teki <jagan@amarulasolutions.com> Signed-off-by:
Icenowy Zheng <icenowy@aosc.io> Signed-off-by:
Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904044053.15425-6-icenowy@aosc.io
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Jagan Teki authored
Mixers in Allwinner have similar capabilities as others SoCs with DE2. Add support for them. Signed-off-by:
Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by:
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Jagan Teki authored
Allwinner A64 has a DE2 display pipeline. The TCONs are similar to the ones in A83T, but the mixers are new (similar to the later R40 SoC). This patch adds dt-binding documentation for A64 DE2 display pipeline. Signed-off-by:
Rob Herring <robh@kernel.org> [Icenowy: Refactor and also cover TCON1] Signed-off-by:
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Gustavo A. R. Silva authored
There is a potential execution path in which pointer memfd is NULL when passed as argument to fput(), hence there is a NULL pointer dereference in fput(). Fix this by null checking *memfd* before calling fput(). Addresses-Coverity-ID: 1473174 ("Explicit null dereferenced") Fixes: fbb0de79 ("Add udmabuf misc device") Signed-off-by:Gustavo A. R. Silva <gustavo@embeddedor.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180904190749.GA9308@embeddedor.comSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Gerd Hoffmann authored
Use the dma mapping api and properly add iommu mappings for objects, unless virtio is in iommu quirk mode. Signed-off-by:
Dave Airlie <airlied@redhat.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180829122026.27012-3-kraxel@redhat.com
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Gerd Hoffmann authored
The new function balances virtio_gpu_object_attach(). Also make virtio_gpu_cmd_resource_inval_backing() static and switch call sites to the new virtio_gpu_object_attach() function. Signed-off-by:
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Gerd Hoffmann authored
Track whenever an virtual output (crtc) is enabled or disabled. On atomic updates check for both framebuffer being present and crtc being enabled to figure whenever the output is active or not. Signed-off-by:
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Peter Wu authored
"crtc->helper_private" is not initialized by the QXL driver and thus the "crtc_funcs->disable" call would crash (resulting in suspend failure). Fix this by converting the suspend/resume functions to use the drm_mode_config_helper_* helpers. Tested system sleep with QEMU 3.0 using "echo mem > /sys/power/state". During suspend the following message is visible from QEMU: spice/server/display-channel.c:2425:display_channel_validate_surface: canvas address is 0x7fd05da68308 for 0 (and is NULL) spice/server/display-channel.c:2426:display_channel_validate_surface: failed on 0 This seems to be triggered by QXL_IO_NOTIFY_CMD after QXL_IO_DESTROY_PRIMARY_ASYNC, but aside from the warning things still seem to work (tested with both the GTK and -spice options). Signed-off-by:Peter Wu <peter@lekensteyn.nl> Link: http://patchwork.freedesktop.org/patch/msgid/20180904202747.14968-1-peter@lekensteyn.nlSigned-off-by:
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- 04 Sep, 2018 3 commits
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Chris Wilson authored
Using a spinlock to serialize the destroy function, within the destroy function itself does not prevent the buggy driver from shooting themselves in the foot - either way they still have a use-after-free issue. Reported-by:
Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Liviu Dudau <Liviu.Dudau@arm.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180903093155.3825-1-chris@chris-wilson.co.uk
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Chris Wilson authored
The ioctl arguments are under control of the user and as such we should resist any temptation to flood the kernel logs with their errors. Relegate the DRM_ERROR to a DRM_DEBUG so the user has to opt into hearing of their own mistakes. (One day we will have a small ringbuffer attached to the task, so that the concerned process can inspect its own debug info for EINVAL without them being hitting syslog at all.) Signed-off-by:
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Souptick Joarder authored
We have introduce new return type vm_fault_t for fault handler. Update the document for the same. Signed-off-by:
Souptick Joarder <jrdr.linux@gmail.com> Signed-off-by:
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- 03 Sep, 2018 14 commits
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Michał Mirosław authored
Kick out firmware fb when loading Tegra driver. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
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Michał Mirosław authored
Use remove_conflicting_framebuffers(NULL) instead of duplicating it. Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by:
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Michał Mirosław authored
Use remove_conflicting_framebuffers(NULL) instead of open-coding it. Signed-off-by:
Eric Anholt <eric@anholt.net> Acked-by:
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Michał Mirosław authored
Signed-off-by:
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Michał Mirosław authored
Remove duplicated call, while at it. Signed-off-by:
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Michał Mirosław authored
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Acked-by:
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Michał Mirosław authored
Signed-off-by:
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Michał Mirosław authored
Signed-off-by:
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Michał Mirosław authored
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Michał Mirosław authored
Almost all PCI drivers using remove_conflicting_framebuffers() wrap it with the same code. v2: add kerneldoc for DRM helper v3: propagate remove_conflicting_framebuffers() return value + move kerneldoc to where function is implemented Signed-off-by:
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Michał Mirosław authored
Document remove_conflicting_framebuffers() behaviour. Signed-off-by:
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Michał Mirosław authored
Interpret (otherwise-invalid) NULL apertures argument to mean all-memory range. This will allow to remove several duplicates of this code from drivers in following patches. Signed-off-by:
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Michał Mirosław authored
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Gerd Hoffmann authored
A driver to let userspace turn memfd regions into dma-bufs. Use case: Allows qemu create dmabufs for the vga framebuffer or virtio-gpu ressources. Then they can be passed around to display those guest things on the host. To spice client for classic full framebuffer display, and hopefully some day to wayland server for seamless guest window display. qemu test branch: https://git.kraxel.org/cgit/qemu/log/?h=sirius/udmabuf Cc: David Airlie <airlied@linux.ie> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
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- 31 Aug, 2018 6 commits
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Sean Paul authored
Adds docs for pixel_blend_mode in drm_plane_state. Fixes the warning found by kbuild test robot: htmldocs: include/drm/drm_plane.h:189: warning: Function parameter or member 'pixel_blend_mode' not described in 'drm_plane_state' Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Lowry Li <lowry.li@arm.com> Reviewed-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180831150934.202332-1-sean@poorly.run
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Hans Verkuil authored
Add DisplayPort CEC-Tunneling-over-AUX support to amdgpu. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
Harry Wentland <harry.wentland@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/de9586bb-151e-bae9-b8e3-14db107a60df@xs4all.nl
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Hans Verkuil authored
Add DisplayPort CEC-Tunneling-over-AUX support to nouveau. Signed-off-by:
Lyude Paul <lyude@redhat.com> Acked-by:
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Hans Verkuil authored
When parsing the reply of a DP_REMOTE_DPCD_READ DPCD command the result is wrong due to a missing idx increment. This was never noticed since DP_REMOTE_DPCD_READ is currently not used, but if you enable it, then it is all wrong. Signed-off-by:
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Hans Verkuil authored
A big problem with DP CEC-Tunneling-over-AUX is that it is tricky to find adapters with a chipset that supports this AND where the manufacturer actually connected the HDMI CEC line to the chipset. Add a mention of the MegaChips 2900 chipset which seems to support this feature well. Signed-off-by:
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Hans Verkuil authored
If aux->transfer == NULL, then just return without doing anything. In that case the function is likely called for a non-(e)DP connector. This never happened for the i915 driver, but the nouveau and amdgpu drivers need this check. The alternative would be to add this check in those drivers before every drm_dp_cec call, but it makes sense to check it in the drm_dp_cec functions to prevent a kernel oops. Signed-off-by:
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- 30 Aug, 2018 6 commits
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Dan Carpenter authored
This doesn't affect runtime because in the current code "idx" is always valid. First, we read from "vgdev->capsets[idx].max_size" before checking whether "idx" is within bounds. And secondly the bounds check is off by one so we could end up reading one element beyond the end of the vgdev->capsets[] array. Fixes: 62fb7a5e ("virtio-gpu: add 3d/virgl support") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180704094250.m7sgvvzg3dhcvv3h@kili.mountainSigned-off-by:
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Thomas Zimmermann authored
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20180731062127.10131-3-tzimmermann@suse.deSigned-off-by:
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Thomas Zimmermann authored
The function ttm_bo_get acquires a reference on a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. Signed-off-by:
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Thomas Zimmermann authored
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by:
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Thomas Zimmermann authored
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by:
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Thomas Zimmermann authored
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by:
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- 29 Aug, 2018 3 commits
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Sandy Huang authored
1. interrupt register define error lead to enable interrupt failed; 2. px30 unsupport hdmi output; 3. there are some hardware designed bug, we must swap win2 gate and enable offset, otherwise will appear vop iommu pagefault. Signed-off-by:
Sandy Huang <hjc@rock-chips.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/1535445150-40296-1-git-send-email-hjc@rock-chips.com
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Gustavo A. R. Silva authored
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL); or, like in this particular case: size = sizeof(struct foo) + sizeof(void *) * count; instance = devm_kzalloc(dev, size, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); This issue was detected with the help of Coccinelle. Signed-off-by:Kees Cook <keescook@chromium.org> Signed-off-by:
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Sandy Huang authored
Align with other drivers, tab + 2 space key for description. and edp/hdmi/dsi can be used on both rk3288 and rk3399. Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
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