- 20 Sep, 2021 20 commits
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Alex Deucher authored
Now that the scheduler is being used by more and more drivers, we need someone to maintain it. Andrey has stepped up to maintain the scheduler. Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Cc: airlied@gmail.com Cc: daniel.vetter@ffwll.ch Reviewed-by:
Christian König <christian.koenig@amd.com> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210917161540.822282-2-alexander.deucher@amd.com
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Douglas Anderson authored
As discussed in the patch ("dt-bindings: drm/panel-simple: Introduce generic eDP panels") we can actually support probing eDP panels at runtime instead of hardcoding what panel is connected. Add support to the panel-edp driver for this. We'll implement a solution like this: * We'll read in two delays from the device tree that are used for powering up the panel the initial time (to read the EDID). * In the EDID we can find a 32-bit ID that identifies what panel we've found. From this ID we can look up the full set of delays. After this change we'll still need to add per-panel delays into the panel-simple driver but we will no longer need to specify exactly which panel is connected to which board in the device tree. Nicely, any panels that are only supported this way also don't need to hardcode mode data since it's guaranteed that we can get that through the EDID. This patch will seed the ID-to-delay table with a few panels that I have access to, many of which are on sc7180-trogdor devices. Signed-off-by:Douglas Anderson <dianders@chromium.org> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210914132020.v5.15.Id9c96cba4eba3e5ee519bfb09cd64b39f2490293@changeid
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Douglas Anderson authored
The simple-panel driver is for panels that are not hot-pluggable at runtime. Let's keep our cached EDID around until driver unload. Signed-off-by:
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Douglas Anderson authored
While cleaning up the descriptions of the delay for eDP panels I realized that we'd have a bug if any panels need the "prepare_to_enable" but HPD handling isn't happening in the panel driver. Let's put in a stopgap to at least make us not violate timings. This is not perfectly optimal but trying to do better is hard. At the moment only 2 panels specify this delay and only 30 ms is at stake. These panels are also currently hooked up with "hpd-gpios" so effectively this "fix" is just a theoretical fix and won't actually do anything for any devices currently supported in mainline. Signed-off-by:
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Douglas Anderson authored
Now that the delays are named / described with eDP-centric names, it becomes clear that we should really specify the "hpd_reliable" and "hpd_absent" separately without taking the other into account. Let's fix it. This should be a no-op change and just adjust how we specify things. The actual delays should be the same before and after for the one panel that currently species both "hpd_reliable" and "hpd_absent". Signed-off-by:
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Douglas Anderson authored
Now that the eDP panel driver only handles eDP panels we can make better sense of the delays here. Let's describe them in terms of the standard eDP timing diagram from the eDP spec. As part of this, it becomes pretty clear that some eDP panels have too long of a "hpd_reliable_delay". This used to be the "prepare" delay. It's the fixed delay that we do in the panel driver after powering on our panel before we look at the HPD signal. To understand this better, first realize that there could be 3 paths we follow depending on how HPD is hooked up. Let's walk through them: 1. HPD is handled by the eDP controller driver. Until "recently" (commit 48834e60 ("drm/panel-simple: Support hpd-gpios for delaying prepare()") in May 2020) this was the only supported way. This is supposed to be when the controller driver gets HPD straight to a dedicated pin. In this case the controller driver should be waiting for HPD in its pre_enable() routine which should be called right after the panel's prepare() function is called. That means that the old "prepare" delay was only needed as a delay after powering the panel but before looking at HPD. 2. HPD is handled via hpd-gpios in the panel. This is much like #1 but much easier to follow since all the handling is in the panel driver. 3. The no-hpd case. This is also easy to follow. In any case, even though it seems like some old panel data was using this incorrectly, let's not touch the old data structures but we'll add a note indicating that something seems off. Signed-off-by:
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Douglas Anderson authored
In the case where we can read an EDID for a panel the only part of the panel description that can't be found directly from the EDID is the description of the delays. Let's break the delay structure out so that we can specify just the delays for panels that are detected by EDID. This is simple code motion. No functional change is intended. Signed-off-by:
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Douglas Anderson authored
All of the "HPD" handling added to panel-simple recently was for eDP panels. Remove it from panel-simple now that panel-edp handles eDP panels. The "prepare_to_enable" delay only makes sense in the context of HPD, so remove it too. No non-eDP panels used it anyway. Signed-off-by:
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Douglas Anderson authored
Not all panels in panel-simple were marked what type of panel they were. I searched through ARM/ARM64 Chromebooks or Chromebook-related reference boards that I was aware of and found some panels that needed to be moved. I also skimmed for panels that had no mode and were "big" since it's quite rare to see a small eDP panel. Here's what I found: * auo,b101ean01 - rk3288-veyron-minnie * auo,b133htn01 - exynos5800-peach-pi * auo,b133xtn01 - tegra124-nyan-big * boe,nv101wxmn51 - rk3399-gru-bob * innolux,p120zdg-bf1 - sdm845-cheza * lg,lp079qx1-sp0v - rk3399-evb and similar * lg,lp097qx1-spa1 - According to commit 0355dde2 ("drm/panel: simple: Add support for LG LP097QX1-SPA1 panel") this is an eDP panel. * lg,lp129qe - tegra124-venice2 * samsung,lsn122dl01-c01 - According to commit 0330eaf3 ("drm/panel: simple: Add support for Samsung LSN122DL01-C01 panel") this is an eDP panel. * samsung,ltn140at29-301 - tegra124-nyan-blaze * sharp,ld-d5116z01b - According to commit cd5e1cbe ("drm/panel: simple: Add support for Sharp LD-D5116Z01B panel") this is an eDP panel. * sharp,lq123p1jx31 - rk3399-gru-kevin * starry,kr122ea0sra - rk3399-gru-gru (reference board, not upstream) I won't promise that I didn't miss a single panel, but that's fairly complete I think. I'm not sure the full impact of the fact that they didn't have the connector type specified, but at least as of commit 9f069c6f ("drm/panel: panel-simple: add default connector_type") we may have been accidentally thinking of them as DPI panels. We also would certainly have had a warning. In any case since we don't want to support anything eDP in the old simple-panel driver, we should move these. Cc: Yakir Yang <ykk@rock-chips.com> Cc: Jeffrey Hugo <jeffrey.l.hugo@gmail.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by:
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Douglas Anderson authored
The panel-simple driver handles way too much. Let's start trying to get a handle on it by splitting out the eDP panels. This patch does this: 1. Start by copying simple-panel verbatim over to a new driver, simple-panel-edp. 2. Rename "panel_simple" to "panel_edp" in the new driver. 3. Keep only panels marked with `DRM_MODE_CONNECTOR_eDP` in the new driver. Remove those panels from the old driver. 4. Remove all recent "DP AUX bus" stuff from the old driver. The DP AUX bus is only possible on DP panels. 5. Remove all DSI / MIPI related functions from the new driver. 6. Remove bus_format / bus_flags from eDP driver. These things don't seem to make any sense for eDP panels so let's stop filling in made up stuff. In the end we end up with a bunch of duplicated code for now. Future patches will try to address _some_ of this duplicated code though some of it will be unavoidable. NOTE: This may not actually move all eDP panels over to the new driver since not all panels were properly marked with `DRM_MODE_CONNECTOR_eDP`. A future patch will attempt to move wayward panels I could identify but even so there may be some missed. Suggested-by:
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Douglas Anderson authored
In the patch ("drm/panel-simple-edp: Split eDP panels out of panel-simple") we split the PANEL_SIMPLE driver in 2. Let's enable the new config. Signed-off-by: -
Douglas Anderson authored
In the patch ("drm/panel-simple-edp: Split eDP panels out of panel-simple") we will split the PANEL_SIMPLE driver in two. By default let's give everyone who had the old driver enabled the new driver too. If folks want to opt-out of one or the other they always can later. Signed-off-by: -
Douglas Anderson authored
In the patch ("drm/edid: Allow the querying/working with the panel ID from the EDID") we introduced a different way of working with the panel ID stored in the EDID. Let's use this new way for the quirks code. Advantages of the new style: * Smaller data structure size. Saves 4 bytes per panel. * Iterate through quirks structure with just "==" instead of strncmp() * In-kernel storage is more similar to what's stored in the EDID itself making it easier to grok that they are referring to the same value. Signed-off-by:Jani Nikula <jani.nikula@intel.com> Acked-by:
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Douglas Anderson authored
EDIDs have 32-bits worth of data which is intended to be used to uniquely identify the make/model of a panel. This has historically been used only internally in the EDID processing code to identify quirks with panels. We'd like to use this panel ID in panel drivers to identify which panel is hooked up and from that information figure out power sequence timings. Let's expose this information from the EDID code and also allow it to be accessed early, before a connector has been created. To make matching in the panel drivers code easier, we'll return the panel ID as a 32-bit value. We'll provide some functions for converting this value back and forth to something more human readable. Signed-off-by:
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Douglas Anderson authored
A future change wants to be able to read just block 0 of the EDID, so break it out of drm_do_get_edid() into a sub-function. This is intended to be a no-op change--just code movement. Signed-off-by:
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Douglas Anderson authored
eDP panels generally contain almost everything needed to control them in their EDID. This comes from their DP heritage were a computer needs to be able to properly control pretty much any DP display that's plugged into it. The one big issue with eDP panels and the reason that we need a panel driver for them is that the power sequencing can be different per panel. While it is true that eDP panel sequencing can be arbitrarily complex, in practice it turns out that many eDP panels are compatible with just some slightly different delays. See the contents of the bindings file introduced in this patch for some details. The fact that eDP panels are 99% probable and that the power sequencing (especially power up) can be compatible between many panels means that there's a constant desire to plug multiple different panels into the same board. This could be for second sourcing purposes or to support multiple SKUs (maybe a 11" and a 13", for instance). As discussed [1], it should be OK to support this by adding two properties to the device tree to specify the delays needed for powering up the panel the first time. We'll create a new "edp-panel" bindings file and define the two delays that might need to be specified. NOTE: in the vast majority of the cases (HPD is hooked up and isn't glitchy or is debounced) even these delays aren't needed. [1] https://lore.kernel.org/r/CAD=FV=VZYOMPwQZzWdhJGh5cjJWw_EcM-wQVEivZ-bdGXjPrEQ@mail.gmail.comSigned-off-by:
Rob Herring <robh@kernel.org> Acked-by:
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Wolfram Sang authored
We should get 'driver_data' from 'struct device' directly. Going via platform_device is an unneeded step back and forth. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by:
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Reviewed-by:
Steven Price <steven.price@arm.com> Signed-off-by:
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Jiapeng Chong authored
This symbol is not used outside of panfrost_drv.c, so marks it static. Fix the following sparse warning: drivers/gpu/drm/panfrost/panfrost_drv.c:641:12: warning: symbol 'mediatek_mt8183_supplies' was not declared. Should it be static? drivers/gpu/drm/panfrost/panfrost_drv.c:642:12: warning: symbol 'mediatek_mt8183_pm_domains' was not declared. Should it be static? Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Reviewed-by:
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Cai Huoqing authored
Use the devm_platform_ioremap_resource_byname() helper instead of calling platform_get_resource_byname() and devm_ioremap_resource() separately Signed-off-by:
Cai Huoqing <caihuoqing@baidu.com> Reviewed-by:
Melissa Wen <mwen@igalia.com> Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210901112941.31320-1-caihuoqing@baidu.com
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Alex Bee authored
Currently it66121_probe returns -EPROBE_DEFER if the there is no remote endpoint found in the device tree which doesn't seem helpful, since this is not going to change later and it is never checked if the next bridge has been initialized yet. It will fail in that case later while doing drm_bridge_attach for the next bridge in it66121_bridge_attach. Since the bindings documentation for it66121 bridge driver states there has to be a remote endpoint defined, its safe to return -EINVAL in that case. This additonally adds a check, if the remote endpoint is enabled and returns -EPROBE_DEFER, if the remote bridge hasn't been initialized (yet). Fixes: 988156dc ("drm: bridge: add it66121 driver") Signed-off-by:
Alex Bee <knaerzche@gmail.com> Signed-off-by:
Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210918140420.231346-1-knaerzche@gmail.com
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- 19 Sep, 2021 1 commit
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Melissa Wen authored
In a cl submission, when bin job initialization fails, sched job resources were already allocated for the render job. At this point, drm_sched_job_init(render) was done in v3d_job_init but the render job is aborted before drm_sched_job_arm (in v3d_job_push) happens; therefore, not only v3d_job_put but also drm_sched_job_cleanup should be called (by v3d_job_cleanup). A similar issue is addressed for csd and tfu submissions. The issue was noticed from a review by Iago Toral in a patch that touches the same part of the code. Fixes: 916044fa ("drm/v3d: Move drm_sched_job_init to v3d_job_init") Signed-off-by:
Iago Toral Quiroga <itoral@igalia.com> Signed-off-by:
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- 17 Sep, 2021 2 commits
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Steven Price authored
It turns out that when locking a region, the region must be a naturally aligned power of 2. The upshot of this is that if the desired region crosses a 'large boundary' the region size must be increased significantly to ensure that the locked region completely covers the desired region. Previous calculations (including in kbase for the proprietary driver) failed to take this into account. Since it's known that the lock region must be naturally aligned we can compute the required size by looking at the highest bit position which changes between the start/end of the lock region (subtracting 1 from the end because the end address is exclusive). The start address is then aligned based on the size (this is technically unnecessary as the hardware will ignore these bits, but the spec advises to do this "to avoid confusion"). Reviewed-by:
Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by:
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liuyuntao authored
When kmem_cache_zalloc in virtio_gpu_get_vbuf fails, it will return an error code. But none of its callers checks this error code, and a core dump will take place. Considering many of its callers can't handle such error, I add a __GFP_NOFAIL flag when calling kmem_cache_zalloc to make sure it won't fail, and delete those unused error handlings. Fixes: dc5698e8 ("Add virtio gpu driver.") Signed-off-by:
Yuntao Liu <liuyuntao10@huawei.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210828104321.3410312-1-liuyuntao10@huawei.comSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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- 16 Sep, 2021 2 commits
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210916105633.12162-1-caihuoqing@baidu.com
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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- 15 Sep, 2021 5 commits
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Iago Toral Quiroga authored
The hardware sets the TMUWCF bit back to 0 when the TMU write combiner flush completes so we should be checking for that instead of the L2TFLS bit. v2 (Melissa Wen): - Add Signed-off-by and Fixes tags. - Change the error message for the timeout to be more clear. Fixes spurious Vulkan CTS failures in: dEQP-VK.binding_model.descriptorset_random.* Fixes: d223f98f ("drm/v3d: Add support for compute shader dispatch.") Signed-off-by:
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Monk Liu authored
issue: in cleanup_job the cancle_delayed_work will cancel a TO timer even the its corresponding job is still running. fix: do not cancel the timer in cleanup_job, instead do the cancelling only when the heading job is signaled, and if there is a "next" job we start_timeout again. v2: further cleanup the logic, and do the TDR timer cancelling if the signaled job is the last one in its scheduler. v3: change the issue description remove the cancel_delayed_work in the begining of the cleanup_job recover the implement of drm_sched_job_begin. v4: remove the kthread_should_park() checking in cleanup_job routine, we should cleanup the signaled job asap TODO: 1)introduce pause/resume scheduler in job_timeout to serial the handling of scheduler and job_timeout. 2)drop the bad job's del and insert in scheduler due to above serialization (no race issue anymore with the serialization) Tested-by: jingwen <jingwen.chen@@amd.com> Signed-off-by:
Monk Liu <Monk.Liu@amd.com> Signed-off-by:
Andrey Grodzovsky <andrey.grodzovsky@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/1630457207-13107-1-git-send-email-Monk.Liu@amd.com
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Huang Rui authored
__fls() on sparc64 return "int", but here it is expected as "unsigned long" (x86). It will cause the build errors because the warning becomes fatal while it is using sparc configuration. As suggested by Linus, it can use min_t instead of min to force the type as "unsigned int". Suggested-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Huang Rui <ray.huang@amd.com> Cc: Christian König <christian.koenig@amd.com> Reviewed-by:
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H. Peter Anvin (Intel) authored
Current (and older) Simics models for the Bochs VGA used the wrong PCI vendor ID (0x4321 instead of 0x1234). Although this can hopefully be fixed in the future, it is a problem for users of the current version, not the least because to update the device ID the BIOS has to be rebuilt in order to see BIOS output. Add support for the 4321:1111 device number in addition to the 1234:1111 one. Signed-off-by:
H. Peter Anvin (Intel) <hpa@zytor.com> Link: http://patchwork.freedesktop.org/patch/msgid/20210910010655.2356245-1-hpa@zytor.comSigned-off-by:
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bibo mao authored
Some architectures have different default page size, this patch replaces hardcoded 4096 with PAGE_SIZE macro, since cmd bo size is page aligned. Signed-off-by:
bibo mao <maobibo@loongson.cn> Link: http://patchwork.freedesktop.org/patch/msgid/20210914062352.6102-1-maobibo@loongson.cnSigned-off-by:
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- 14 Sep, 2021 5 commits
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John Stultz authored
When trying to do mid-order allocations, set __GFP_NOWARN to avoid warning messages if the allocation fails, as we will still fall back to single page allocatitions in that case. This is the similar to what we already do for large order allocations. Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Christian Koenig <christian.koenig@amd.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Liam Mark <lmark@codeaurora.org> Cc: Chris Goldsworthy <cgoldswo@codeaurora.org> Cc: Laura Abbott <labbott@kernel.org> Cc: Brian Starkey <Brian.Starkey@arm.com> Cc: Hridya Valsaraju <hridya@google.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Sandeep Patil <sspatil@google.com> Cc: Daniel Mentz <danielmentz@google.com> Cc: Ørjan Eide <orjan.eide@arm.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Simon Ser <contact@emersion.fr> Cc: James Jones <jajones@nvidia.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Signed-off-by:
John Stultz <john.stultz@linaro.org> Acked-by:
Sumit Semwal <sumit.semwal@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210909023741.2592429-1-john.stultz@linaro.org
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Maxime Ripard authored
The new devm_drm_of_get_bridge removes most of the boilerplate we have to deal with. Let's switch to it. Signed-off-by:
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Maxime Ripard authored
The new devm_drm_of_get_bridge removes most of the boilerplate we have to deal with. Let's switch to it. Signed-off-by:
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Maxime Ripard authored
Display drivers so far need to have a lot of boilerplate to first retrieve either the panel or bridge that they are connected to using drm_of_find_panel_or_bridge(), and then either deal with each with ad-hoc functions or create a drm panel bridge through drm_panel_bridge_add. In order to reduce the boilerplate and hopefully create a path of least resistance towards using the DRM panel bridge layer, let's create the function devm_drm_of_get_bridge() to reduce that boilerplate. Signed-off-by:
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Maxime Ripard authored
Kickstart new drm-misc-next cycle. Signed-off-by:
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- 13 Sep, 2021 2 commits
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xinhui pan authored
Allow TTM know if vendor set new ttm mananger out of bounds by adding build_bug_on. Signed-off-by:
xinhui pan <xinhui.pan@amd.com> Reviewed-by:
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Cai Huoqing authored
Use the devm_platform_ioremap_resource_byname() helper instead of calling platform_get_resource_byname() and devm_ioremap_resource() separately Use the devm_platform_ioremap_resource() helper instead of calling platform_get_resource() and devm_ioremap_resource() separately Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Signed-off-by:
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- 12 Sep, 2021 3 commits
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Linus Torvalds authored
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Linus Torvalds authored
Merge tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tools updates from Arnaldo Carvalho de Melo: - Add missing fields and remove some duplicate fields when printing a perf_event_attr. - Fix hybrid config terms list corruption. - Update kernel header copies, some resulted in new kernel features being automagically added to 'perf trace' syscall/tracepoint argument id->string translators. - Add a file generated during the documentation build to .gitignore. - Add an option to build without libbfd, as some distros, like Debian consider its ABI unstable. - Add support to print a textual representation of IBS raw sample data in 'perf report'. - Fix bpf 'perf test' sample mismatch reporting - Fix passing arguments to stackcollapse report in a 'perf script' python script. - Allow build-id with trailing zeros. - Look for ImageBase in PE file to compute .text offset. * tag 'perf-tools-for-v5.15-2021-09-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (25 commits) tools headers UAPI: Update tools's copy of drm.h headers tools headers UAPI: Sync drm/i915_drm.h with the kernel sources tools headers UAPI: Sync linux/fs.h with the kernel sources tools headers UAPI: Sync linux/in.h copy with the kernel sources perf tools: Add an option to build without libbfd perf tools: Allow build-id with trailing zeros perf tools: Fix hybrid config terms list corruption perf tools: Factor out copy_config_terms() and free_config_terms() perf tools: Fix perf_event_attr__fprintf() missing/dupl. fields perf tools: Ignore Documentation dependency file perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions tools include UAPI: Update linux/mount.h copy perf beauty: Cover more flags in the move_mount syscall argument beautifier tools headers UAPI: Sync linux/prctl.h with the kernel sources tools include UAPI: Sync sound/asound.h copy with the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources perf report: Add support to print a textual representation of IBS raw sample data perf report: Add tools/arch/x86/include/asm/amd-ibs.h perf env: Add perf_env__cpuid, perf_env__{nr_}pmu_mappings ...
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git://github.com/ojeda/linuxLinus Torvalds authored
Pull compiler attributes updates from Miguel Ojeda: - Fix __has_attribute(__no_sanitize_coverage__) for GCC 4 (Marco Elver) - Add Nick as Reviewer for compiler_attributes.h (Nick Desaulniers) - Move __compiletime_{error|warning} (Nick Desaulniers) * tag 'compiler-attributes-for-linus-v5.15-rc1-v2' of git://github.com/ojeda/linux: compiler_attributes.h: move __compiletime_{error|warning} MAINTAINERS: add Nick as Reviewer for compiler_attributes.h Compiler Attributes: fix __has_attribute(__no_sanitize_coverage__) for GCC 4
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