- 17 Nov, 2022 8 commits
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Christian König authored
The basic problem here is that it's not allowed to page fault while holding the reservation lock. So it can happen that multiple processes try to validate an userptr at the same time. Work around that by putting the HMM range object into the mutex protected bo list for now. v2: make sure range is set to NULL in case of an error Signed-off-by:
Christian König <christian.koenig@amd.com> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Reviewed-by:
Felix Kuehling <Felix.Kuehling@amd.com> CC: stable@vger.kernel.org Signed-off-by:
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Christian König authored
Since switching to HMM we always need that because we no longer grab references to the pages. Signed-off-by:
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Lyude Paul authored
Now that we've fixed the issue with using the incorrect topology manager, we're actually grabbing the topology manager's lock - and consequently deadlocking. Luckily for us though, there's actually nothing in AMD's DSC state computation code that really should need this lock. The one exception is the mutex_lock() in dm_dp_mst_is_port_support_mode(), however we grab no locks beneath &mgr->lock there so that should be fine to leave be. Gitlab issue: https://gitlab.freedesktop.org/drm/amd/-/issues/2171Signed-off-by:
Lyude Paul <lyude@redhat.com> Fixes: 8c20a1ed ("drm/amd/display: MST DSC compute fair share") Cc: <stable@vger.kernel.org> # v5.6+ Reviewed-by:
Wayne Lin <Wayne.Lin@amd.com> Signed-off-by:
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Lyude Paul authored
This bug hurt me. Basically, it appears that we've been grabbing the entirely wrong mutex in the MST DSC computation code for amdgpu! While we've been grabbing: amdgpu_dm_connector->mst_mgr That's zero-initialized memory, because the only connectors we'll ever actually be doing DSC computations for are MST ports. Which have mst_mgr zero-initialized, and instead have the correct topology mgr pointer located at: amdgpu_dm_connector->mst_port->mgr; I'm a bit impressed that until now, this code has managed not to crash anyone's systems! It does seem to cause a warning in LOCKDEP though: [ 66.637670] DEBUG_LOCKS_WARN_ON(lock->magic != lock) This was causing the problems that appeared to have been introduced by: commit 4d07b0bc ("drm/display/dp_mst: Move all payload info into the atomic state") This wasn't actually where they came from though. Presumably, before the only thing we were doing with the topology mgr pointer was attempting to grab mst_mgr->lock. Since the above commit however, we grab much more information from mst_mgr including the atomic MST state and respective modesetting locks. This patch also implies that up until now, it's quite likely we could be susceptible to race conditions when going through the MST topology state for DSC computations since we technically will not have grabbed any lock when going through it. So, let's fix this by adjusting all the respective code paths to look at the right pointer and skip things that aren't actual MST connectors from a topology. Gitlab issue: https://gitlab.freedesktop.org/drm/amd/-/issues/2171Signed-off-by:
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Lyude Paul authored
Looks like that we're accidentally dropping a pretty important return code here. For some reason, we just return -EINVAL if we fail to get the MST topology state. This is wrong: error codes are important and should never be squashed without being handled, which here seems to have the potential to cause a deadlock. Signed-off-by:
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Lyude Paul authored
It appears that amdgpu makes the mistake of completely ignoring the return values from the DP MST helpers, and instead just returns a simple true/false. In this case, it seems to have come back to bite us because as a result of simply returning false from compute_mst_dsc_configs_for_state(), amdgpu had no way of telling when a deadlock happened from these helpers. This could definitely result in some kernel splats. V2: * Address Wayne's comments (fix another bunch of spots where we weren't passing down return codes) Signed-off-by:
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Roman Li authored
[Why] Assert on non-OK response from SMU is unnecessary. It was replaced with respective log message on other asics in the past with commit: "drm/amd/display: Removing assert statements for Linux" [How] Remove assert and add dbg logging as on other DCNs. Signed-off-by:
Roman Li <roman.li@amd.com> Reviewed-by:
Saaem Rizvi <SyedSaaem.Rizvi@amd.com> Signed-off-by:
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Alex Deucher authored
Move the new callback outside of the guard. Fixes: dc55b106 ("drm/amd/display: Disable phantom OTG after enable for plane disable") CC: Alvin Lee <Alvin.Lee2@amd.com> CC: Alan Liu <HaoPing.Liu@amd.com> Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Signed-off-by:
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- 15 Nov, 2022 32 commits
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Christian König authored
The state of VRAM is unreliable due to a PCI event like AER, link reset or DPC. Signed-off-by:
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Christian König authored
Re-submitting IBs by the kernel has many problems because pre- requisite state is not automatically re-created as well. In other words neither binary semaphores nor things like ring buffer pointers are in the state they should be when the hardware starts to work on the IBs again. Additional to that even after more than 5 years of developing this feature it is still not stable and we have massively problems getting the reference counts right. As discussed with user space developers this behavior is not helpful in the first place. For graphics and multimedia workloads it makes much more sense to either completely re-create the context or at least re-submitting the IBs from userspace. For compute use cases re-submitting is also not very helpful since userspace must rely on the accuracy of the result. Because of this we stop this practice and instead just properly note that the fence submission was canceled. The only use case we keep the re-submission for now is SRIOV and function level resets. v2: as suggested by Sshaoyun stop resubmitting jobs even for SRIOV Signed-off-by:
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Christian König authored
This reverts commit e6c6338f. This feature basically re-submits one job after another to figure out which one was the one causing a hang. This is obviously incompatible with gang-submit which requires that multiple jobs run at the same time. It's also absolutely not helpful to crash the hardware multiple times if a clean recovery is desired. For testing and debugging environments we should rather disable recovery alltogether to be able to inspect the state with a hw debugger. Additional to that the sw implementation is clearly buggy and causes reference count issues for the hardware fence. Signed-off-by:
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Dan Carpenter authored
In the PP_OD_EDIT_VDDC_CURVE case the "input_index" variable is capped at 2 but not checked for negative values so it results in an out of bounds read. This value comes from the user via sysfs. Fixes: d5bf2653 ("drm/amd/powerplay: added vega20 overdrive support V3") Signed-off-by:
Dan Carpenter <error27@gmail.com> Signed-off-by:
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Paulo Miguel Almeida authored
One-element arrays are deprecated, and we are replacing them with flexible array members instead. So, replace one-element array with flexible-array member in structs ATOM_I2C_VOLTAGE_OBJECT_V3, ATOM_ASIC_INTERNAL_SS_INFO_V2, ATOM_ASIC_INTERNAL_SS_INFO_V3, and refactor the rest of the code accordingly. Important to mention is that doing a build before/after this patch results in no functional binary output differences. This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. Link: https://github.com/KSPP/linux/issues/79 Link: https://github.com/KSPP/linux/issues/238 Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 [1] Signed-off-by:
Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com> Signed-off-by:
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Evan Quan authored
The workaround designed for some specific ASICs is wrongly applied to SMU13 ASICs. That leads to some runpm hang. Signed-off-by:
Evan Quan <evan.quan@amd.com> Reviewed-by:
Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by:
Feifei Xu <Feifei.Xu@amd.com> Signed-off-by:
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Evan Quan authored
Enable SMU13.0.7 runpm support. Signed-off-by:
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Evan Quan authored
Enable SMU13.0.0 runpm support. Signed-off-by:
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YiPeng Chai authored
Amdgpu_ras_set_error_query_ready is called at the start of amdgpu_device_gpu_recover to disable query ras error, but the code behind only enables query ras error in full reset path, but not in soft reset path, emergency restart path and skip the hardware reset path. Signed-off-by:
YiPeng Chai <YiPeng.Chai@amd.com> Reviewed-by:
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Alex Deucher authored
If we enable virtual display functionality on parts with no display hardware we can end up trying to check for and reserve the vbios FB area on devices where it doesn't exist. Check if display hardware is actually present on the hardware before trying to reserve the memory. v2: move the check into common code Acked-by:
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Eric Huang authored
It is to resolve a regression, which fails to allocate VRAM due to no free memory in application, the reason is we add check of vram_pin_size for memory limit, and application is pinning the memory for Peerdirect, KFD should not count it in memory limit. So removing vram_pin_size will resolve it. Signed-off-by:
Eric Huang <jinhuieric.huang@amd.com> Reviewed-by:
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Guchun Chen authored
Otherwise, some unexpected PCIE AER errors will be observed in runtime suspend/resume cycle. Signed-off-by:
Guchun Chen <guchun.chen@amd.com> Acked-by:
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YiPeng Chai authored
Add umc channel index mapping table for umc_v8_10. Signed-off-by:
Tao Zhou <tao.zhou1@amd.com> Signed-off-by:
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Perry Yuan authored
change the vangogh family to use IP discovery path to initialize IP list, this needs to remove the DID from the PCI ID list to allow the IP discovery path to set all the IP versions correctly. Reviewed-by:
Perry Yuan <Perry.Yuan@amd.com> Signed-off-by:
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Perry Yuan authored
Use ip versions (10,3,1) to match the GPU after Vangogh switched to use IP discovery path. Reviewed-by:
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Perry Yuan authored
Add the missing apu flag for Vangogh when using IP discovery code path to initialize IPs Reviewed-by:
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Melissa Wen authored
DM maps DRM CRTC degamma to DPP (pre-blending) degamma block, but DCE doesn't support programmable degamma curve anywhere. Currently, a custom degamma is accepted by DM but just ignored by DCE driver and degamma correction isn't actually applied. There is no way to map custom degamma in DCE, therefore, DRM CRTC degamma property shouldn't be enabled for DCE drivers. Reviewed-by:
Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by:
Melissa Wen <mwen@igalia.com> Signed-off-by:
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Aric Cyr authored
DC version 3.2.212 brings along the following fixes: - Fix DPIA AUX timeout issue - Add HUBP surface flip interrupt handler - Fix dpms_off issue when disabling bios mode - Update SubVP Visual Confirm - Program pipes for ODM when removing planes - Use min transition for all SubVP plane add/remove - Support parsing VRAM info v3.0 from VBIOS - Enable dchub request limit for NV32 - Workaround to increase phantom pipe vactive in pipesplit - Fix dcn3.1x mode validation on high bandwidth config - Check context constructed for pipe split flags after pipesplit - Align phantom pipe dst/src scaling with main for subvp - Fix calculation for cursor CAB allocation - Fix unbounded requesting for high pixel rate modes on dcn315 - Revert Disable DRR actions during state commit - Fix array index out of bound error in bios parser - Fix optc2_configure warning on dcn314 - Fix Subvp phantom pipe transition - Fix prefetch calculations for dcn32 - Use uclk pstate latency for fw assisted mclk validation dcn32 - Set max for prefetch lines on dcn32 - Rework macros for DWB register access - Adjust DP 8b10b LT exit behavior Reviewed-by:
Tom Chung <chiahsuan.chung@amd.com> Acked-by:
Aric Cyr <Aric.Cyr@amd.com> Tested-by:
Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by:
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Anthony Koo authored
- New boot options to enable USB4 DP BW Allocation mode in DPIA Reviewed-by:
Anthony Koo <Anthony.Koo@amd.com> Tested-by:
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Ilya Bakoulin authored
[Why] Polling SINK_STATUS DPCD can cause some non-DP2.0 LTTPR hubs to hang and no longer respond to AUX. [How] As a workaround for the problem hubs, and also to more closely match DP spec 8b10b behavior, don't poll for intra-hop AUX reply indication on 8b10b-encoded links. Reviewed-by:
Wenjing Liu <Wenjing.Liu@amd.com> Acked-by:
Ilya Bakoulin <Ilya.Bakoulin@amd.com> Tested-by:
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Aurabindo Pillai authored
[Why] A hack was used to access DWB register due to difference in the register naming convention which was not compatible with existing SR/SRI* macros. The additional macro needed were added to dwb ip specific header file (dcnxx_dwb.h) instead of soc resource file (dcnxx_resource.c). Due to this pattern, BASE macro had to be redefined in dcnxx_dwb.h, which in turn needed us to undefine them in the resource file. [How] Add a separate macro for DWB access to the resource files that need it instead of defining them in DWB ip header file. This will enable us to reuse the BASE macro defined in the resource file. Reviewed-by:
Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by:
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Dillon Varone authored
[WHY?] Max number of lines that can be used for prefetch due to type constraints is 63.75. [HOW?] Enforce maximum prefetch lines as 63.75. Reviewed-by:
Jun Lei <Jun.Lei@amd.com> Acked-by:
Dillon Varone <Dillon.Varone@amd.com> Tested-by:
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Dillon Varone authored
[WHY?] DCN32 uses fclk pstate watermarks for dummy pstate, and must always be supported. [HOW?] Validation needs to be run with fclk pstate latency set as the dummy pstate latency to get correct prefetch and bandwidth outputs. Reviewed-by:
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Dillon Varone authored
[Description] Prefetch calculation loop was not exiting until utilizing all of vstartup if it failed once. Locals need to be reset on each iteration of the loop. Reviewed-by:
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Alvin Lee authored
[Description] - When transitioning a pipe in use (non-phantom) to become a phantom pipe, we must fully disable the pipe first before doing any phantom pipe programming - Move phantom OTG enablement to after "regular" front-end programming sequence (including wait for vupdate) - If a pipe is being transitioned into a phantom pipe, fully disable it first Reviewed-by:
Alvin Lee <Alvin.Lee2@amd.com> Tested-by:
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Roman Li authored
[Why] dcn314 uses optc2_configure_crc() that wraps optc1_configure_crc() + set additional registers not applicable to dcn314. It's not critical but when used leads to warning like: WARNING: drivers/gpu/drm/amd/amdgpu/../display/dc/dc_helper.c Call Trace: <TASK> generic_reg_set_ex+0x6d/0xe0 [amdgpu] optc2_configure_crc+0x60/0x80 [amdgpu] dc_stream_configure_crc+0x129/0x150 [amdgpu] amdgpu_dm_crtc_configure_crc_source+0x5d/0xe0 [amdgpu] [How] Use optc1_configure_crc() directly Reviewed-by:
Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by:
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Aurabindo Pillai authored
[Why&How] Firmware headers dictate that gpio_pin array only has a size of 8. The count returned from vbios however is greater than 8. Fix this by not using array indexing but incrementing the pointer since gpio_pin definition in atomfirmware.h is hardcoded to size 8 Reviewed-by:
Martin Leung <Martin.Leung@amd.com> Acked-by:
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Martin Leung authored
why and how: causes unstable on certain surface format/mpo transitions This reverts commit de020e5fReviewed-by:
Wesley Chalmers <Wesley.Chalmers@amd.com> Acked-by:
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Alvin Lee authored
[Description] - If we're enabling phantom pipe for a high link rate display we could fail DML on the phantom pipe since it's set to virtual signal - Therefore don't consider Output BPP for phantom pipe Reviewed-by:
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Dmytro Laktyushkin authored
Unbounded requesting is getting configured for odm mode calculations which is incorrect. This change checks whether mode requires odm ahead of time. Reviewed-by:
Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Tested-by:
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George Shen authored
[Why] The cursor size (in memory) is currently incorrectly calculated, resulting not enough CAB being allocated for static screen cursor in MALL refresh. This results in cursor image corruption. [How] Use cursor pitch instead of cursor width when calculating cursor size. Update num cache lines calculation to use the result of the cursor size calculation instead of manually recalculating again. Reviewed-by:
George Shen <george.shen@amd.com> Tested-by:
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Dillon Varone authored
[WHY?] Subvp src/dst stream rectangles are not being created with the same scaling factors as the main stream. [HOW?] Make sure subvp stream src rectangle scales its height to have the same src/dst ratio as the main stream. Reviewed-by:
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