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2021-07-17drm/panel: ws2401: Add driver for WideChips WS2401Linus Walleij3-0/+452
This adds a driver for panels based on the WideChips WS2401 display controller. This display controller is used in the Samsung LMS380KF01 display found in the Samsung GT-I8160 (Codina) mobile phone and possibly others. As is common with Samsung displays manufacturer commands are necessary to configure the display to a working state. The display optionally supports internal backlight control, but can also use an external backlight. This driver re-uses the DBI infrastructure to communicate with the display. Cc: phone-devel@vger.kernel.org Cc: Douglas Anderson <dianders@chromium.org> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210714225002.1065107-2-linus.walleij@linaro.org
2021-07-16Revert "drm/i915: Skip over MI_NOOP when parsing"Jason Ekstrand1-33/+34
This reverts a6c5e2aea704 ("drm/i915: Skip over MI_NOOP when parsing"). It complicates the batch parsing code a bit and increases indentation for no reason other than fast-skipping a command that userspace uses only rarely. Sure, there may be IGT tests that fill batches with NOOPs but that's not a case we should optimize for in the kernel. We should optimize for code clarity instead. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210714193419.1459723-6-jason@jlekstrand.net
2021-07-16drm/i915: Drop error handling from dma_fence_workJason Ekstrand4-10/+4
Asynchronous command parsing was the only thing which ever returned a non-zero error. With that gone, we can drop the error handling from dma_fence_work. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210714193419.1459723-5-jason@jlekstrand.net
2021-07-16drm/i915: Remove allow_alloc from i915_gem_object_get_sg*Jason Ekstrand4-23/+11
This reverts the rest of 0edbb9ba1bfe ("drm/i915: Move cmd parser pinning to execbuffer"). Now that the only user of i915_gem_object_get_sg without allow_alloc has been removed, we can drop the parameter. This portion of the revert was broken into its own patch to aid review. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210714193419.1459723-4-jason@jlekstrand.net
2021-07-16Revert "drm/i915: Propagate errors on awaiting already signaled fences"Jason Ekstrand1-6/+2
This reverts commit 9e31c1fe45d555a948ff66f1f0e3fe1f83ca63f7. Ever since that commit, we've been having issues where a hang in one client can propagate to another. In particular, a hang in an app can propagate to the X server which causes the whole desktop to lock up. Error propagation along fences sound like a good idea, but as your bug shows, surprising consequences, since propagating errors across security boundaries is not a good thing. What we do have is track the hangs on the ctx, and report information to userspace using RESET_STATS. That's how arb_robustness works. Also, if my understanding is still correct, the EIO from execbuf is when your context is banned (because not recoverable or too many hangs). And in all these cases it's up to userspace to figure out what is all impacted and should be reported to the application, that's not on the kernel to guess and automatically propagate. What's more, we're also building more features on top of ctx error reporting with RESET_STATS ioctl: Encrypted buffers use the same, and the userspace fence wait also relies on that mechanism. So it is the path going forward for reporting gpu hangs and resets to userspace. So all together that's why I think we should just bury this idea again as not quite the direction we want to go to, hence why I think the revert is the right option here. For backporters: Please note that you _must_ have a backport of https://lore.kernel.org/dri-devel/20210602164149.391653-2-jason@jlekstrand.net/ for otherwise backporting just this patch opens up a security bug. v2: Augment commit message. Also restore Jason's sob that I accidentally lost. v3: Add a note for backporters Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reported-by: Marcin Slusarz <marcin.slusarz@intel.com> Cc: <stable@vger.kernel.org> # v5.6+ Cc: Jason Ekstrand <jason.ekstrand@intel.com> Cc: Marcin Slusarz <marcin.slusarz@intel.com> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/3080 Fixes: 9e31c1fe45d5 ("drm/i915: Propagate errors on awaiting already signaled fences") Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210714193419.1459723-3-jason@jlekstrand.net
2021-07-16drm/i915: Revert "drm/i915/gem: Asynchronous cmdparser"Jason Ekstrand4-279/+91
This reverts 686c7c35abc2 ("drm/i915/gem: Asynchronous cmdparser"). The justification for this commit in the git history was a vague comment about getting it out from under the struct_mutex. While this may improve perf for some workloads on Gen7 platforms where we rely on the command parser for features such as indirect rendering, no numbers were provided to prove such an improvement. It claims to closed two gitlab/bugzilla issues but with no explanation whatsoever as to why or what bug it's fixing. Meanwhile, by moving command parsing off to an async callback, it leaves us with a problem of what to do on error. When things were synchronous, EXECBUFFER2 would fail with an error code if parsing failed. When moving it to async, we needed another way to handle that error and the solution employed was to set an error on the dma_fence and then trust that said error gets propagated to the client eventually. Moving back to synchronous will help us untangle the fence error propagation mess. This also reverts most of 0edbb9ba1bfe ("drm/i915: Move cmd parser pinning to execbuffer") which is a refactor of some of our allocation paths for asynchronous parsing. Now that everything is synchronous, we don't need it. v2 (Daniel Vetter): - Add stabel Cc and Fixes tag Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Cc: <stable@vger.kernel.org> # v5.6+ Fixes: 9e31c1fe45d5 ("drm/i915: Propagate errors on awaiting already signaled fences") Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210714193419.1459723-2-jason@jlekstrand.net
2021-07-16drm/amd/display: Fix 10bit 4K display on CIK GPUsLiviu Dudau1-1/+1
Commit 72a7cf0aec0c ("drm/amd/display: Keep linebuffer pixel depth at 30bpp for DCE-11.0.") doesn't seems to have fixed 10bit 4K rendering over DisplayPort for CIK GPUs. On my machine with a HAWAII GPU I get a broken image that looks like it has an effective resolution of 1920x1080 but scaled up in an irregular way. Reverting the commit or applying this patch fixes the problem on v5.14-rc1. Fixes: 72a7cf0aec0c ("drm/amd/display: Keep linebuffer pixel depth at 30bpp for DCE-11.0.") Acked-by: Mario Kleiner <mario.kleiner.de@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Liviu Dudau <liviu@dudau.co.uk> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amd/pm: update DRIVER_IF_VERSION for beige_gobyTao Zhou1-1/+1
Update the version to 0xD for beige_goby. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Jack Gui <Jack.Gui@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: update gc golden setting for dimgrey_cavefishTao Zhou1-0/+1
Update gc_10_3_4 golden setting. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2021-07-16drm/amdgpu: update golden setting for sienna_cichlidLikun Gao1-0/+1
Update GFX golden setting for sienna_cichlid. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2021-07-16drm/amdgpu: update the golden setting for vangoghXiaojian Du1-0/+1
This patch is to update the golden setting for vangogh. Signed-off-by: Xiaojian Du <Xiaojian.Du@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2021-07-16amdgpu/nv.c - Optimize code for video codec support structureVeerabadhran Gopalakrishnan3-350/+56
Optimized the code for codec info structure initialization Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16amdgpu/nv.c - Added video codec support for Yellow CarpVeerabadhran Gopalakrishnan1-1/+19
Added the supported codecs in the video capabilities query. Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16Merge tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drmLinus Torvalds36-1382/+190
Pull drm fixes from Dave Airlie: "Regular rc2 fixes though a bit more than usual at rc2 stage, people must have been testing early or else some fixes from last week got a bit laggy. There is one larger change in the amd fixes to amalgamate some power management code on the newer chips with the code from the older chips, it should only affects chips where support was introduced in rc1 and it should make future fixes easier to maintain probably a good idea to merge it now. Otherwise it's mostly fixes across the board. dma-buf: - Fix fence leak in sync_file_merge() error code drm/panel: - nt35510: Don't fail on DSI reads fbdev: - Avoid use-after-free by not deleting current video mode ttm: - Avoid NULL-ptr deref in ttm_range_man_fini() vmwgfx: - Fix a merge commit qxl: - fix a TTM regression amdgpu: - SR-IOV fixes - RAS fixes - eDP fixes - SMU13 code unification to facilitate fixes in the future - Add new renoir DID - Yellow Carp fixes - Beige Goby fixes - Revert a bunch of TLB fixes that caused regressions - Revert an LTTPR display regression amdkfd - Fix VRAM access regression - SVM fixes i915: - Fix -EDEADLK handling regression - Drop the page table optimisation" * tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm: (29 commits) drm/amdgpu: add another Renoir DID drm/ttm: add a check against null pointer dereference drm/i915/gtt: drop the page table optimisation drm/i915/gt: Fix -EDEADLK handling regression drm/amd/pm: Add waiting for response of mode-reset message for yellow carp Revert "drm/amdkfd: Add heavy-weight TLB flush after unmapping" Revert "drm/amdgpu: Add table_freed parameter to amdgpu_vm_bo_update" Revert "drm/amdkfd: Make TLB flush conditional on mapping" Revert "drm/amdgpu: Fix warning of Function parameter or member not described" Revert "drm/amdkfd: Add memory sync before TLB flush on unmap" drm/amd/pm: Fix BACO state setting for Beige_Goby drm/amdgpu: Restore msix after FLR drm/amdkfd: Allow CPU access for all VRAM BOs drm/amdgpu/display - only update eDP's backlight level when necessary drm/amdkfd: handle fault counters on invalid address drm/amdgpu: Correct the irq numbers for virtual crtc drm/amd/display: update header file name drm/amd/pm: drop smu_v13_0_1.c|h files for yellow carp drm/amd/display: remove faulty assert Revert "drm/amd/display: Always write repeater mode regardless of LTTPR" ...
2021-07-16drm/amd/display: Fix 10bit 4K display on CIK GPUsLiviu Dudau1-1/+1
Commit 72a7cf0aec0c ("drm/amd/display: Keep linebuffer pixel depth at 30bpp for DCE-11.0.") doesn't seems to have fixed 10bit 4K rendering over DisplayPort for CIK GPUs. On my machine with a HAWAII GPU I get a broken image that looks like it has an effective resolution of 1920x1080 but scaled up in an irregular way. Reverting the commit or applying this patch fixes the problem on v5.14-rc1. Fixes: 72a7cf0aec0c ("drm/amd/display: Keep linebuffer pixel depth at 30bpp for DCE-11.0.") Acked-by: Mario Kleiner <mario.kleiner.de@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Liviu Dudau <liviu@dudau.co.uk> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu/ttm: optimize vram access in amdgpu_ttm_access_memory()Kevin Wang1-35/+48
1. using vram aper to access vram if possible 2. avoid MM_INDEX/MM_DATA is not working when mmio protect feature is enabled. Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu/ttm: replace duplicate code with exiting functionKevin Wang1-6/+1
using exiting function to replace duplicate code blocks in amdgpu_ttm_vram_write(). Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: split amdgpu_device_access_vram() into two small partsKevin Wang2-31/+81
split amdgpu_device_access_vram() 1. amdgpu_device_mm_access(): using MM_INDEX/MM_DATA to access vram 2. amdgpu_device_aper_access(): using vram aperature to access vram (option) Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu/display: make a const array common_rates static, makes object smallerColin Ian King1-2/+4
Don't populate the const array common_rates on the stack but instead it static. Makes the object code smaller by 80 bytes: Before: text data bss dec hex filename 268019 98322 256 366597 59805 ../display/amdgpu_dm/amdgpu_dm.o After: text data bss dec hex filename 267843 98418 256 366517 597b5 ../display/amdgpu_dm/amdgpu_dm.o Reduction of 80 bytes (gcc version 10.3.0) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amd/pm: update DRIVER_IF_VERSION for beige_gobyTao Zhou1-1/+1
Update the version to 0xD for beige_goby. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Jack Gui <Jack.Gui@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: update gc golden setting for dimgrey_cavefishTao Zhou1-0/+1
Update gc_10_3_4 golden setting. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: update golden setting for sienna_cichlidLikun Gao1-0/+1
Update GFX golden setting for sienna_cichlid. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: update the golden setting for vangoghXiaojian Du1-0/+1
This patch is to update the golden setting for vangogh. Signed-off-by: Xiaojian Du <Xiaojian.Du@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amd/display: avoid printing ERROR for unknown CEA parse(v2)Guchun Chen1-1/+1
For the unknown CEA parse case on DMUB-enabled ASICs, dmesg will print an error message like below, this will be captured by automation tools as it has the word like ERROR during boot up and treated as a false error, as it does not break bootup process. So use DRM_WARN printing for this. [drm:amdgpu_dm_update_freesync_caps [amdgpu]] *ERROR* Unknown EDID CEA parser results v2: Use DRM_WARN to print such info. Signed-off-by: Guchun Chen <guchun.chen@amd.com> Reviewed-by: Stylon Wang <stylon.wang@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: Switch to LFB for USBC PD FW in psp v13Andrey Grodzovsky1-0/+66
Add USBC PD FW implementation here to be used with relevant ASICs. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: Switch to VRAM buffer for USBC PD FW.Andrey Grodzovsky3-51/+29
System memory-based implementation for updating the USBCPD is deprecated for so switching to LFB based implementation for all the ASICs. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Alexander Deucher <Alexander.Deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16amdgpu/nv.c - Optimize code for video codec support structureVeerabadhran Gopalakrishnan3-350/+56
Optimized the code for codec info structure initialization Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16amdgpu/nv.c - Added video codec support for Yellow CarpVeerabadhran Gopalakrishnan1-1/+19
Added the supported codecs in the video capabilities query. Signed-off-by: Veerabadhran Gopalakrishnan <veerabadhran.gopalakrishnan@amd.com> Reviewed-by: James Zhu <James.Zhu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-07-16drm/amdgpu: workaround failed COW checks for Thunk VMAsFelix Kuehling1-0/+9
KFD Thunk maps invisible VRAM BOs with PROT_NONE, MAP_PRIVATE. is_cow_mapping returns true for these mappings, which causes mmap to fail in ttm_bo_mmap_obj. As a workaround, clear VM_MAYWRITE for PROT_NONE-COW mappings. This should prevent the mapping from ever becoming writable and makes is_cow_mapping(vm_flags) false. Fixes: f91142c62161 ("drm/ttm: nuke VM_MIXEDMAP on BO mappings v3") Suggested-by: Daniel Vetter <daniel.vetter@intel.com> Tested-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210715190537.585456-1-Felix.Kuehling@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
2021-07-16Merge tag 'drm-intel-fixes-2021-07-15' of ↵Dave Airlie2-5/+2
git://anongit.freedesktop.org/drm/drm-intel into drm-fixes Two regression fixes targeting stable: - Fix -EDEADLK handling regression (Ville) - Drop the page table optimisation (Matt) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YPA8y1DSCp2EbtpC@intel.com
2021-07-16Merge tag 'drm-misc-fixes-2021-07-15' of ↵Dave Airlie4-2/+5
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes Short summary of fixes pull (less than what git shortlog provides): * fbdev: Avoid use-after-free by not deleting current video mode * ttm: Avoid NULL-ptr deref in ttm_range_man_fini() * vmwgfx: Fix a merge commit Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YO/yoFO+iSEqnIH0@linux-uq9g
2021-07-15drm/dp: For drm_panel_dp_aux_backlight(), init backlight as disabledDouglas Anderson1-0/+2
Even after the DP AUX backlight on my board worked OK after applying the patch ("drm/panel-simple: Power the panel when probing DP AUX backlight") [1], I still noticed some strange timeouts being reported by ti_sn_aux_transfer(). Digging, I realized the problem was this: * Even though `enabled` in `struct dp_aux_backlight` was false, the base backlight structure (`base` in that structure) thought that the backlight was powered on. * If userspace wrote to sysfs in this state then we'd try to enable the backlight. * Unfortunatley, enabling the backlight didn't work because the panel itself wasn't powered. We can only use the backlight if the panel is on and the panel is not officially on when we probe (it's temporarily just on enough for us to talk to it). The important thing we want here is to get `BL_CORE_FBBLANK` set since userspace can't mess with that. This will keep us disabled until drm_panel enables us, which means that the panel is enabled first. Ideally we'd just set this in our `props` before calling devm_backlight_device_register() but the comments in the header file are pretty explicit that we're not supposed to much with the `state` ourselves. Because of this, there may be a small window where the backlight device is registered and someone could try to tweak with the backlight. This isn't likely to happen and even if it did, I don't believe this causes any huge problem. [1] https://lore.kernel.org/lkml/20210714093334.1.Idb41f87e5abae4aee0705db7458b0097fc50e7ab@changeid/ Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210714101744.1.Ifc22696b27930749915e383f0108b7bcdc015a6e@changeid
2021-07-15drm/panel-simple: Power the panel when probing DP AUX backlightDouglas Anderson1-0/+3
When I tried booting up a device that needed the DP AUX backlight, I found an error in the logs: panel-simple-dp-aux: probe of aux-ti_sn65dsi86.aux.0 failed with error -110 The aux transfers were failing because the panel wasn't powered. Just like when reading the EDID we need to power the panel when trying to talk to it. Add the needed pm_runtime calls. After I do this I can successfully probe the panel and adjust the backlight on my board. Fixes: bfd451403d70 ("drm/panel-simple: Support DP AUX backlight") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210714093334.1.Idb41f87e5abae4aee0705db7458b0097fc50e7ab@changeid
2021-07-15drm/of: free the iterator object on failureSteven Price1-1/+3
When bailing out due to the sanity check the iterator value needs to be freed because the early return prevents for_each_child_of_node() from doing the dereference itself. Fixes: 6529007522de ("drm: of: Add drm_of_lvds_get_dual_link_pixel_order") Signed-off-by: Steven Price <steven.price@arm.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210714143300.20632-1-steven.price@arm.com
2021-07-15drm/omapdrm: Remove outdated commentThomas Zimmermann1-7/+0
The comment refers to drm_irq_install() et al, which are not used by omapdrm. The functions are part of the DRM IRQ midlayer and shouldn't be used any longer. Remove the comment. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210706073125.7689-1-tzimmermann@suse.de
2021-07-15drm/vbox: Convert to Linux IRQ interfacesThomas Zimmermann3-7/+11
Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210706075011.9009-1-tzimmermann@suse.de
2021-07-15drm/qxl: Convert to Linux IRQ interfacesThomas Zimmermann3-6/+5
Drop the DRM IRQ midlayer in favor of Linux IRQ interfaces. DRM's IRQ helpers are mostly useful for UMS drivers. Modern KMS drivers don't benefit from using it. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210706074735.8849-1-tzimmermann@suse.de
2021-07-15drm/vc4: hdmi: Remove drm_encoder->crtc usageMaxime Ripard1-13/+27
The drm_encoder crtc pointer isn't really fit for an atomic driver, let's rely on the connector state instead. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210707141930.1811128-1-maxime@cerno.tech
2021-07-15drm/vc4: hdmi: Only call into DRM framework if registeredMaxime Ripard1-1/+1
Our hotplug handler will currently call the drm_kms_helper_hotplug_event every time a hotplug interrupt is called. However, since the device is registered after all the drivers have finished their bind callback, we have a window between when we install our interrupt handler and when drm_dev_register() is eventually called where our handler can run and call drm_kms_helper_hotplug_event but the device hasn't been registered yet, causing a null pointer dereference. Fix this by making sure we only call drm_kms_helper_hotplug_event if our device has been properly registered. Fixes: f4790083c7c2 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210707095112.1469670-4-maxime@cerno.tech
2021-07-15drm/vc4: hdmi: Drop devm interrupt handler for hotplug interruptsMaxime Ripard1-13/+28
The hotplugs interrupt handlers are registered through the devm_request_threaded_irq function. However, while free_irq is indeed called properly when the device is unbound or bind fails, it's called after unbind or bind is done. In our particular case, it means that on failure it creates a window where our interrupt handler can be called, but we're freeing every resource (CEC adapter, DRM objects, etc.) it might need. In order to address this, let's switch to the non-devm variant to control better when the handler will be unregistered and allow us to make it safe. Fixes: f4790083c7c2 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210707095112.1469670-3-maxime@cerno.tech
2021-07-15drm/vc4: hdmi: Drop devm interrupt handler for CEC interruptsMaxime Ripard1-16/+33
The CEC interrupt handlers are registered through the devm_request_threaded_irq function. However, while free_irq is indeed called properly when the device is unbound or bind fails, it's called after unbind or bind is done. In our particular case, it means that on failure it creates a window where our interrupt handler can be called, but we're freeing every resource (CEC adapter, DRM objects, etc.) it might need. In order to address this, let's switch to the non-devm variant to control better when the handler will be unregistered and allow us to make it safe. Fixes: 15b4511a4af6 ("drm/vc4: add HDMI CEC support") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210707095112.1469670-2-maxime@cerno.tech
2021-07-15Merge branch 'topic/revid_steppings' into drm-intel-nextMatt Roper10-199/+120
The switch from old old IS_FOO_REVID() macros to the new table-based IS_FOO_{GT,DISP}_STEP() macros is needed on both drm-intel-next (for display-based DMC matching) and drm-intel-gt-next (for workaround guards). To avoid conflicts, we'll apply the patches to a topic branch and merge it to both intel branches to ensure the transition to the new macros is clean. Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2021-07-15Merge branch 'topic/revid_steppings' into drm-intel-gt-nextMatt Roper10-197/+119
The switch from old old IS_FOO_REVID() macros to the new table-based IS_FOO_{GT,DISP}_STEP() macros is needed on both drm-intel-next (for display-based DMC matching) and drm-intel-gt-next (for workaround guards). To avoid conflicts, we'll apply the patches to a topic branch and merge it to both intel branches to ensure the transition to the new macros is clean. Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2021-07-15drm/i915/icl: Drop workarounds that only apply to pre-production steppingsMatt Roper2-42/+0
We're past the point at which we usually drop workarounds that were never needed on production hardware. The driver will already print an error and apply taint if loaded on pre-production hardware. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-13-matthew.d.roper@intel.com
2021-07-15drm/i915/cnl: Drop all workaroundsMatt Roper2-64/+0
All of the Cannon Lake hardware that came out had graphics fused off, and our userspace drivers have already dropped their support for the platform; CNL-specific code in i915 that isn't inherited by subsequent platforms is effectively dead code. Let's remove all of the CNL-specific workarounds as a quick and easy first step. References: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6899 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-12-matthew.d.roper@intel.com
2021-07-15drm/i915/dg1: Use revid->stepping tablesMatt Roper6-22/+21
Switch DG1 to use a revid->stepping table as we're trying to do on all platforms going forward. This removes the last use of IS_REVID() and REVID_FOREVER, so remove those now-unused macros as well to prevent their accidental use on future platforms. v2: - Use COMMON_STEP() macro in table. (Anusha) Bspec: 44463 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-11-matthew.d.roper@intel.com
2021-07-15drm/i915/rkl: Use revid->stepping tablesMatt Roper3-8/+13
Switch RKL to use a revid->stepping table as we're trying to do on all platforms going forward. Bspec: 44501 Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-10-matthew.d.roper@intel.com
2021-07-15drm/i915/jsl_ehl: Use revid->stepping tablesMatt Roper4-7/+14
Switch JSL/EHL to use a revid->stepping table as we're trying to do on all platforms going forward. v2: - Use COMMON_STEP(). (Anusha) Bspec: 29153 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-9-matthew.d.roper@intel.com
2021-07-15drm/i915/icl: Use revid->stepping tablesMatt Roper4-14/+16
Switch ICL to use a revid->stepping table as we're trying to do on all platforms going forward. While we're at it, let's include some additional steppings that have popped up, even if we don't yet have any workarounds tied to those steppings (we probably need to audit our workaround list soon to see if any of the bounds have moved or if new workarounds have appeared). Note that the current bspec table is missing information about how to map PCI revision ID to GT/display steppings; it only provides an SoC stepping. The mapping to GT/display steppings (which aren't always the same as the SoC stepping) used to be in the bspec, but was apparently dropped during an update in Nov 2019; I've made my changes here based on an older bspec snapshot that still had the necessary information. We've requested that the missing information be restored. I'm only including the production revids in the table here since we're past the point at which we usually stop trying to support pre-production hardware. An appropriate check is added to intel_detect_preproduction_hw() to print an error and taint the kernel just in case someone still tries to load the driver on old pre-production hardware. v2: - Drop pre-production steppings and add error/taint at startup when loading on pre-production hardware. Bspec: 21141 # pre-Nov 2019 snapshot Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-8-matthew.d.roper@intel.com
2021-07-15drm/i915/glk: Use revid->stepping tablesMatt Roper2-8/+7
Switch GLK to use a revid->stepping table as we're trying to do on all platforms going forward. Pre-production and placeholder revisions are omitted. Although nothing in the code is using the data from this table at the moment, we expect some upcoming DMC patches to start utilizing it. Bspec: 19131 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-7-matthew.d.roper@intel.com
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-16 19:36:21 +0300