- 19 Dec, 2023 40 commits
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Matt Roper authored
For platforms with GMD_ID registers, the IP stepping should be determined from the 'revid' field of those registers rather than from the PCI revid. The hardware teams have indicated that they plan to keep the revid => stepping mapping consistent across all GMD_ID platforms, with major steppings (A0, B0, C0, etc.) having revids that are multiples of 4, and minor steppings (A1, A2, A3, etc.) taking the intermediate values. For now we'll trust that hardware follows through on this plan; if they have to change direction in the future (e.g., they wind up needing something like an "A4" that doesn't fit this scheme), we can add a GMD_ID-based lookup table when the time comes. v2: - Set xe->info.platform before finding stepping; the pre-GMD_ID code relies on this value to pick a lookup table. v3: - Also set xe->info.subplatform before picking the stepping for pre-GMD_ID lookup. Reviewed-by:
Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://lore.kernel.org/r/20230524185952.666158-1-matthew.d.roper@intel.comSigned-off-by:
Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com>
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Gustavo Sousa authored
Let's make sure we give the driver a valid workqueue. While at it, also make sure to call destroy_workqueue() only if the workqueue is a valid one. That is necessary because xe_device_destroy() is indirectly called as part of the cleanup process of a failed xe_device_create(). Reviewed-by:
Gustavo Sousa <gustavo.sousa@intel.com> Signed-off-by:
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Gustavo Sousa authored
Otherwise no cleanup is actually done if we branch to err_put. This works for now: currently we do know that, once inside xe_device_destroy(), ttm_device_init() was successful so we can safely call ttm_device_fini(); and, for xe->ordered_wq, there is an upcoming commit to check its value before calling destroy_workqueue(). However, we might need change this in the future if we have more initializers called that can fail in a way that we can not know which one was it once inside xe_device_destroy(). Reviewed-by:
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Gustavo Sousa authored
The function drm_dev_put() should also be called if xe_device_probe() fails. v2: - Improve commit message. (Lucas) Reviewed-by:
Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20230519194802.578182-1-gustavo.sousa@intel.comSigned-off-by:
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Matthew Auld authored
drivers/gpu/drm/xe/xe_guc_submit_types.h:47: warning: cannot understand function prototype: 'struct guc_submit_parallel_scratch ' drivers/gpu/drm/xe/xe_devcoredump_types.h:38: warning: Function parameter or member 'ct' not described in 'xe_devcoredump_snapshot' CI doesn't appear to be running BAT anymore, assuming this is caused by the CI.Hooks now failing due to above warnings. Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by:
Nirmoy Das <nirmoy.das@intel.com> Signed-off-by:
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Michal Wajdeczko authored
Both GUC_HOST_INTERRUPT and MED_GUC_HOST_INTERRUPT can pass additional payload data to the GuC but this capability is not used by the firmware yet. Stop using value mandated by legacy GuC interrupt register and use default notify value (zero) instead. Bspec: 49813, 63363 Signed-off-by:
Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by:
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Michal Wajdeczko authored
This GuC register can be moved together with the rest of the GuC register definitions and be named in a similar way. v2: fix placement Bspec: 63363 Signed-off-by:
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Rodrigo Vivi authored
There are multiple kind of config prints and with the upcoming devcoredump there will be another layer. Let's limit the config to the top level functions and leave the clean-up work for the compilers so we don't create a spider-web of configs. No functional change. Just a preparation for the devcoredump. Signed-off-by:
Matthew Brost <matthew.brost@intel.com>
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Rodrigo Vivi authored
Let's continue to add our existent simple logs to devcoredump one by one. Any format change should come on follow-up work. v2: remove unnecessary, and now duplicated, dma_fence annotation. (Matthew) v3: avoid for_each with faulty_engine since that can be already freed at the time of the read/free. Instead, iterate in the full array of hw_engines. (Kasan) Cc: Francois Dugast <francois.dugast@intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by:Francois Dugast <francois.dugast@intel.com>
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Rodrigo Vivi authored
The goal is to allow for a snapshot capture to be taken at the time of the crash, while the print out can happen at a later time through the exposed devcoredump virtual device. v2: Addressing these Matthew comments: - Handle memory allocation failures. - Do not use GFP_ATOMIC on cases like debugfs prints. - placement of @reg doc. - identation issues. v3: checkpatch v4: Rebase and get back to GFP_ATOMIC only. Signed-off-by: -
Rodrigo Vivi authored
Let's start to move our existent logs to devcoredump one by one. Any format change should come on follow-up work. Signed-off-by:
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Rodrigo Vivi authored
The goal is to allow for a snapshot capture to be taken at the time of the crash, while the print out can happen at a later time through the exposed devcoredump virtual device. v2: Handle memory allocation failures. (Matthew) Do not use GFP_ATOMIC on cases like debugfs prints. (Matthew) v3: checkpatch v4: pending_list allocation needs to be atomic because of the spin_lock. (Matthew) get back to GFP_ATOMIC only. (lockdep). Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by: -
Rodrigo Vivi authored
These structs and definitions are only used for the guc_submit and they were added specifically for the parallel submission. While doing that also delete the unused struct guc_wq_item. v2: checkpatch fixes. Cc: Matthew Brost <matthew.brost@intel.com> Signed-off-by:
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Rodrigo Vivi authored
Let's start to move our existent logs to devcoredump one by one. Any format change should come on follow-up work. v2: Rebase and add the dma_fence locking annotation here. Signed-off-by:
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Rodrigo Vivi authored
The goal is to allow for a snapshot capture to be taken at the time of the crash, while the print out can happen at a later time through the exposed devcoredump virtual device. v2: Handle memory allocation failures. (Matthew) Do not use GFP_ATOMIC on cases like debugfs prints. (Matthew) v3: checkpatch fixes v4: Do not use atomic in the g2h_worker_func (Matthew) Signed-off-by: -
Rodrigo Vivi authored
No functional change here. The goal is to have a clear split between the mapped portions of the CTB and the static information, so we can easily capture snapshots that will be used for later read out with the devcoredump infrastructure. Signed-off-by:
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Rodrigo Vivi authored
Unfortunately devcoredump infrastructure does not provide and interface for us to force the device removal upon the pci_remove time of our device. The devcoredump is linked at the device level, so when in use it will prevent the module removal, but it doesn't prevent the call of the pci_remove callback. This callback cannot fail anyway and we end up clearing and freeing the entire pci device. Hence, after we removed the pci device, we shouldn't allow any read or free operations to avoid segmentation fault. Signed-off-by:
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Rodrigo Vivi authored
The goal is to use devcoredump infrastructure to report error states captured at the crash time. The error state will contain useful information for GPU hang debug, such as INSTDONE registers and the current buffers getting executed, as well as any other information that helps user space and allow later replays of the error. The proposal here is to avoid a Xe only error_state like i915 and use a standard dev_coredump infrastructure to expose the error state. For our own case, the data is only useful if it is a snapshot of the time when the GPU crash has happened, since we reset the GPU immediately after and the registers might have changed. So the proposal here is to have an internal snapshot to be printed out later. Also, usually a subsequent GPU hang can be only a cause of the initial one. So we only save the 'first' hang. The dev_coredump has a delayed work queue where it remove the coredump and free all the data within a few moments of the error. When that happens we also reset our capture state and allow further snapshots. Right now this infra only print out the time of the hang. More information will be migrated here on subsequent work. Also, in order to organize the dump better, the goal is to propose dev_coredump changes itself to allow multiple files and different controls. But for now we start Xe usage of it without any dependency on dev_coredump core changes. v2: Add dma_fence annotation for capture that might happen during long running. (Thomas and Matt) Use xe->drm.primary->index on drm_info msg. (Jani) v3: checkpatch fixes v4: Fix building and locking issues found by Francois. Actually let's kill all of the locking in here. gt_reset serialization already guarantee that there will be only one capture at the same time. Also, the devcoredump has its own locking to protect the free and reads and drivers don't need to duplicate it. Besides this, the dma_fence locking was pushed to a following patch since it is not needed in this one. Fix a use after free identified by KASAN: Do not stash the faulty_engine since that will be freed somewhere else. v5: Fix Uptime - ktime_get_boottime actually returns the Uptime. (Francois) Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Francois Dugast <francois.dugast@intel.com> Signed-off-by: -
Michal Wajdeczko authored
Replace generic log messages with ones dedicated for the GT. While around replace errno logs from plain %d to pretty %pe. v2: rebased v3: unify errno logs Signed-off-by:
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Michal Wajdeczko authored
While debugging GT related problems, it's good to know which GT was reporting problems. Introduce helper macros to allow prefix GT logs with GT identifier. We will use them in upcoming patches. v2: use xe_ prefix (Lucas) v3: use correct include Signed-off-by:
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Matthew Brost authored
This is allowed and encouraged by the dma-fencing rules. This along with allowing compute VMs to export dma-fences on binds will result in a simpler compute UMD. Signed-off-by:
Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by:
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Matthew Brost authored
Binds are not long running jobs thus we can export dma-fences even if a VM is in compute mode. Signed-off-by:
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Gustavo Sousa authored
Move xe_register_pci_driver() and xe_unregister_pci_driver() to init_funcs to make sure that exit functions are also called when xe_register_pci_driver() fails. Note that this also allows adding init functions to be run after xe_register_pci_driver(). v2: - Move functions to init_funcs instead of having a special case for xe_register_pci_driver(). (Jani) Cc: Jani Nikula <jani.nikula@intel.com> Reviewed-by:
Matt Atwood <matthew.s.atwood@intel.com> Signed-off-by:
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Gustavo Sousa authored
There is not much of a benefit from using that macro as of now and it hurts grepability or other ways of cross-referencing. Cc: Jani Nikula <jani.nikula@intel.com> Reviewed-by:
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Francois Dugast authored
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Lucas De Marchi authored
Alderlake P uses TGL HuC and it was not added together with ADL-S, because it was failing for unrelated reasons. Now that those are fixed, allow it to load HuC. # cat /sys/kernel/debug/dri/0/gt0/uc/huc_info HuC firmware: i915/tgl_huc.bin status: RUNNING version: wanted 0.0, found 7.9 uCode: 589504 bytes RSA: 256 bytes HuC status: 0x00090001 Reviewed-by:
Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://lore.kernel.org/r/20230512233649.3218736-1-lucas.demarchi@intel.comSigned-off-by:
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Matt Roper authored
ADL-N is pretty much the same as ADL-P (i.e., Xe_LP graphics + Xe_M media + Xe_LPD display). However unlike ADL-P, there's no GuC hwconfig support so the "tgl" GuC firmware should be loaded (i.e., the same situation as ADL-S). Acked-by:
Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com> Link: https://lore.kernel.org/r/20230419213703.3993439-2-matthew.d.roper@intel.comSigned-off-by:
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Matt Roper authored
Setup the mapping from PCI revid to IP stepping for ADL-P (and its RPL-P subplatform) in case this information becomes important for implementing workarounds. Bspec: 55376 Reviewed-by:
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Matthew Auld authored
Checking seqno_recv >= seqno looks like it will incorrectly report true when the seqno has wrapped (not unlikely given TLB_INVALIDATION_SEQNO_MAX). Calling xe_gt_tlb_invalidation_wait() might then return before the flush has been completed by the GuC. Fix this by treating a large negative delta as an indication that the seqno has wrapped around. Similar to how we treat a large positive delta as an indication that the seqno_recv must have wrapped around, but in that case the seqno has likely also signalled. It looks like we could also potentially make the seqno use the full 32bits as supported by the GuC. Signed-off-by:
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Lucas De Marchi authored
Fix the indent to align with open parenthesis, following the coding style. Reviewed-by:
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Lucas De Marchi authored
Rename the address field to "addr" rather than "reg" so it's easier to understand what it is. Reviewed-by:
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Lucas De Marchi authored
Convert all the callers to deal with xe_mmio_*() using struct xe_reg instead of plain u32. In a few places there was also a rename s/reg/reg_val/ when dealing with the value returned so it doesn't get mixed up with the register address. Reviewed-by:
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Niranjana Vishwanathapura authored
With multiple active VMs, under memory pressure, it is possible that ttm_bo_validate() run into -EDEADLK in ttm_mem_evict_wait_busy() and return -ENOMEM. Until ttm properly handles locking in such scenarios, best thing the driver can do is unwind the lock and retry. Update xe_exec_begin to retry validating BOs with a timeout upon -ENOMEM. Reviewed-by:
Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com> Signed-off-by:
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Niranjana Vishwanathapura authored
With multiple active VMs, under memory pressure, it is possible that ttm_bo_validate() run into -EDEADLK in ttm_mem_evict_wait_busy() and return -ENOMEM. Until ttm properly handles locking in such scenarios, best thing the driver can do is unwind the lock and retry. Update preempt worker to retry validating BOs with a timeout upon -ENOMEM. v2: revert retry timeout upon -EAGAIN (Thomas) Reviewed-by:
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Mika Kuoppala authored
xe_file_close cleanups the xarrays but forgets to destroy them causing a memleak in xarray internals. Found with kmemleak. Signed-off-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by:
Christoph Manszewski <christoph.manszewski@intel.com> Reviewed-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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Nirmoy Das authored
Print GT info on TLB inv failure for better debugbility. Signed-off-by:
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Nirmoy Das authored
Set atomic in xe_mmio_wait32() otherwise we would be scheduling in atomic context. Fixes: 7dc9b92d ("drm/xe: Remove i915_utils dependency from xe_pcode.") Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
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Lucas De Marchi authored
guc_mmio_regset_write() had a flags for the registers to be added to the GuC's regset list. The only register actually using that was RCU_MODE, but it was setting the flags to a bogus value. From struct xe_guc_fwif.h, #define GUC_REGSET_MASKED BIT(0) #define GUC_REGSET_MASKED_WITH_VALUE BIT(2) #define GUC_REGSET_RESTORE_ONLY BIT(3) Cross checking with i915, the only flag to set in RCU_MODE is GUC_REGSET_MASKED. That can be done automatically from the register, as long as the definition is correct. Add the XE_REG_OPTION_MASKED annotation to RCU_MODE and kill the "flags" field in guc_mmio_regset_write(): guc_mmio_regset_write_one() can decide that based on the register being passed. Reviewed-by:
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Lucas De Marchi authored
The rest of the driver doesn't really support PVC before B0 stepping. Drop the special handling in xe_guc.c. Reviewed-by:
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Lucas De Marchi authored
On i915 the "see comment about Wa_22013088509" referred to the comment in the graphics version >= 11 branch, where there were more details about it. From the platforms supported by xe, only PVC needs Wa_22013088509, but as the comment says, it's simpler to do it for all platforms as there is no downside. Bring the missing comment over from i915 and reword it to fit xe better. Reviewed-by:
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