kernel.git/drivers/gpu/drm/xe/abi, branch linux-6.14.y

drm/xe: Fix all typos in xe

2025-01-09T16:58:09Z

Fix all typos in files of xe, reported by codespell tool. Signed-off-by: Nitin Gote Reviewed-by: Andi Shyti Reviewed-by: Stuart Summers Link: https://patchwork.freedesktop.org/patch/msgid/20250106102646.1400146-2-nitin.r.gote@intel.com Signed-off-by: Nirmoy Das

drm/xe/guc: Add support for G2G communications

2024-11-23T03:10:56Z

Some features require inter-GuC communication channels on multi-tile devices. So allocate and enable such. v2: Correct use of xe_bo_get/put (review feedback from Matthew Brost) Add extra assert, re-order a calculation for better clarity and add comments to slot calculation (review feedback from Daniele). Also slightly re-work the slot calc to avoid code duplication. Signed-off-by: John Harrison Reviewed-by: Daniele Ceraolo Spurio Link: https://patchwork.freedesktop.org/patch/msgid/20241120000222.204095-3-John.C.Harrison@Intel.com

drm/xe/guc: Add VF_CFG_SCHED_PRIORITY_KEY KLV definition

2024-11-08T12:31:13Z

This KLV allows to set the scheduling priority for each VF, also for the PF. Signed-off-by: Michal Wajdeczko Reviewed-by: Lukasz Laguna Link: https://patchwork.freedesktop.org/patch/msgid/20241106151301.2079-2-michal.wajdeczko@intel.com

drm/xe/vf: Send RESFIX_DONE message at end of VF restore

2024-11-06T14:25:30Z

After restore, GuC will not answer to any messages from VF KMD until fixups are applied. When that is done, VF KMD sends RESFIX_DONE message to GuC, at which point GuC resumes normal operation. This patch implements sending the RESFIX_DONE message at end of post-migration recovery. v2: keep pm ref during whole recovery, style fixes (Michal) v3: assert removal to separate patch, debug message per GuC instead of one, comments changes (Michal) v4: improve one debug message (Michal) Signed-off-by: Tomasz Lis Reviewed-by: Michal Wajdeczko Link: https://patchwork.freedesktop.org/patch/msgid/20241104213449.1455694-4-tomasz.lis@intel.com Signed-off-by: Michal Wajdeczko

drm/xe/ptl: Apply Wa_14022866841

2024-10-17T18:20:21Z

As part of this WA, GuC will hold a forcewake for certain MMIO accesses outside the GT/media domains. Cc: Matt Roper Signed-off-by: Vinay Belgaumkar Reviewed-by: Matt Roper Signed-off-by: John Harrison Link: https://patchwork.freedesktop.org/patch/msgid/20241015234428.2004825-1-vinay.belgaumkar@intel.com

drm/xe/guc: Extract GuC error capture lists

2024-10-08T16:34:45Z

Upon the G2H Notify-Err-Capture event, parse through the GuC Log Buffer (error-capture-subregion) and generate one or more capture-nodes. A single node represents a single "engine- instance-capture-dump" and contains at least 3 register lists: global, engine-class and engine-instance. An internal link list is maintained to store one or more nodes. Because the link-list node generation happen before the call to devcoredump, duplicate global and engine-class register lists for each engine-instance register dump if we find dependent-engine resets in a engine-capture-group. To avoid dynamically allocate the output nodes during gt reset, pre-allocate a fixed number of empty nodes up front (at the time of ADS registration) that we can consume from or return to an internal cached list of nodes. Signed-off-by: Zhanjun Dong Reviewed-by: Alan Previn Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20241004193428.3311145-5-zhanjun.dong@intel.com

drm/xe/guc: Add capture size check in GuC log buffer

2024-10-08T16:34:28Z

Capture-nodes generated by GuC are placed in the GuC capture ring buffer which is a sub-region of the larger Guc-Log-buffer. Add capture output size check before allocating the shared buffer. Signed-off-by: Zhanjun Dong Reviewed-by: Alan Previn Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20241004193428.3311145-4-zhanjun.dong@intel.com

drm/xe/guc: Prepare GuC register list and update ADS size for error capture

2024-10-08T16:34:04Z

Add referenced registers defines and list of registers. Update GuC ADS size allocation to include space for the lists of error state capture register descriptors. Then, populate GuC ADS with the lists of registers we want GuC to report back to host on engine reset events. This list should include global, engine-class and engine-instance registers for every engine-class type on the current hardware. Ensure we allocate a persistent storage for the register lists that are populated into ADS so that we don't need to allocate memory during GT resets when GuC is reloaded and ADS population happens again. Signed-off-by: Zhanjun Dong Reviewed-by: Alan Previn Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20241004193428.3311145-2-zhanjun.dong@intel.com

drm/xe/guc: Dead CT helper

2024-10-08T01:34:59Z

Add a worker function helper for asynchronously dumping state when an internal/fatal error is detected in CT processing. Being asynchronous is required to avoid deadlocks and scheduling-while-atomic or process-stalled-for-too-long issues. Also check for a bunch more error conditions and improve the handling of some existing checks. v2: Use compile time CONFIG check for new (but not directly CT_DEAD related) checks and use unsigned int for a bitmask, rename CT_DEAD_RESET to CT_DEAD_REARM and add some explaining comments, rename 'hxg' macro parameter to 'ctb' - review feedback from Michal W. Drop CT_DEAD_ALIVE as no need for a bitfield define to just set the entire mask to zero. v3: Fix kerneldoc v4: Nullify some floating pointers after free. v5: Add section headings and device info to make the state dump look more like a devcoredump to allow parsing by the same tools (eventual aim is to just call the devcoredump code itself, but that currently requires an xe_sched_job, which is not available in the CT code). v6: Fix potential for leaking snapshots with concurrent error conditions (review feedback from Julia F). v7: Don't complain about unexpected G2H messages yet because there is a known issue causing them. Fix bit shift bug with v6 change. Add GT id to fake coredump headers and use puts instead of printf. v8: Disable the head mis-match check in g2h_read because it is failing on various discrete platforms due to unknown reasons. Signed-off-by: John Harrison Reviewed-by: Julia Filipchuk Link: https://patchwork.freedesktop.org/patch/msgid/20241003004611.2323493-9-John.C.Harrison@Intel.com

drm/xe/guc: Add PF2GUC_SAVE_RESTORE_VF to ABI

2024-09-16T11:00:08Z

In upcoming patches we will add support to the PF driver to save and restore a VF state maintained by the GuC to allow VF migration. Add necessary H2G definitions to our GuC firmware ABI header. Signed-off-by: Michal Wajdeczko Cc: Michał Winiarski Cc: Tomasz Lis Reviewed-by: Michał Winiarski Link: https://patchwork.freedesktop.org/patch/msgid/20240912203817.1880-3-michal.wajdeczko@intel.com