kernel/linux.git/drivers/gpu/drm/xe/abi, branch v6.12.92

drm/xe/guc: Add more GuC load error status codes

2025-11-13T20:34:09+00:00

[ Upstream commit 45fbb51050e72723c2bdcedc1ce32305256c70ed ] The GuC load process will abort if certain status codes (which are indicative of a fatal error) are reported. Otherwise, it keeps waiting until the 'success' code is returned. New error codes have been added in recent GuC releases, so add support for aborting on those as well. v2: Shuffle HWCONFIG_START to the front of the switch to keep the ordering as per the enum define for clarity (review feedback by Jonathan). Also add a description for the basic 'invalid init data' code which was missing. Signed-off-by: John Harrison Reviewed-by: Stuart Summers Link: https://lore.kernel.org/r/20250726024337.4056272-1-John.C.Harrison@Intel.com Signed-off-by: Sasha Levin

drm/xe/guc: Dead CT helper

2025-07-10T14:05:04+00:00

[ Upstream commit d2c5a5a926f43b2e42c5c955f917bad8ad6dd68c ] 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 Stable-dep-of: ad40098da5c3 ("drm/xe/guc: Explicitly exit CT safe mode on unwind") Signed-off-by: Sasha Levin

drm/xe/guc: Enable w/a 14022293748 and 22019794406

2024-08-08T20:47:27+00:00

Enable workarounds for HW bug where render engine reset fails. Given that we're bumping the minimum required GuC version to 70.29, we're guaranteed to always have support for this KLV in the GuC. v2: Enable KLV correctly for either workaround (Lucas) v4: Add check for minimum supported GuC firmware version. Enable w/a for hw version 20.01 too. (Daniele) v5 (Daniele): remove now unneeded fw type and version checks (JohnH) Signed-off-by: Julia Filipchuk Signed-off-by: Daniele Ceraolo Spurio Cc: John Harrison Reviewed-by: John Harrison Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240805205435.921921-1-daniele.ceraolospurio@intel.com

drm/xe/guc: Add more GuC error codes to ABI

2024-06-26T22:25:07+00:00

There are many more error codes used that the GuC firmware can return in the RESPONSE_FAILURE message. Add to the ABI header those which are more likely to be seen by the PF or VF drivers. Signed-off-by: Michal Wajdeczko Cc: Matthew Brost Reviewed-by: Matthew Brost Link: https://patchwork.freedesktop.org/patch/msgid/20240625141258.1257-3-michal.wajdeczko@intel.com Signed-off-by: Rodrigo Vivi

drm/xe/guc: Add kernel-doc for HXG Fast Request

2024-06-11T10:25:21+00:00

We have kernel-doc for all HXG message types but Fast Request. Signed-off-by: Michal Wajdeczko Acked-by: Nirmoy Das Link: https://patchwork.freedesktop.org/patch/msgid/20240610120411.1768-3-michal.wajdeczko@intel.com

drm/xe/guc: Drop unused legacy GuC message ABI definitions

2024-06-11T10:25:19+00:00

Those were copy-pasted from i915 code and never used in Xe driver. Signed-off-by: Michal Wajdeczko Reviewed-by: Nirmoy Das Link: https://patchwork.freedesktop.org/patch/msgid/20240610120411.1768-2-michal.wajdeczko@intel.com

drm/xe/guc: Move H2G SETUP_PC_GUCRC definition to SLPC ABI

2024-06-10T10:41:38+00:00

We already have a dedicated file for GuC SLPC ABI definitions. Move definition of the SETUP_PC_GUCRC action and related enum to that file, rename them to match format of other new ABI definitions and add simple kernel-doc. Signed-off-by: Michal Wajdeczko Cc: Vinay Belgaumkar Reviewed-by: Vinay Belgaumkar Link: https://patchwork.freedesktop.org/patch/msgid/20240609181931.1724-2-michal.wajdeczko@intel.com

drm/xe/guc: Add GLOBAL_CFG_GMD_ID KLV definition

2024-05-24T08:02:27+00:00

VF drivers can't access GMD_ID register over MMIO. The value of the GMD_ID register must be queried from GuC. It is available as GLOBAL_CFG_GMD_ID KLV. Signed-off-by: Michal Wajdeczko Reviewed-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20240523192240.844-3-michal.wajdeczko@intel.com

drm/xe/guc: Port over the slow GuC loading support from i915

2024-05-23T17:55:31+00:00

GuC loading can take longer than it is supposed to for various reasons. So add in the code to cope with that and to report it when it happens. There are also many different reasons why GuC loading can fail, so add in the code for checking for those and for reporting issues in a meaningful manner rather than just hitting a timeout and saying 'fail: status = %x'. Also, remove the 'FIXME' comment about an i915 bug that has never been applicable to Xe! v2: Actually report the requested and granted frequencies rather than showing granted twice (review feedback from Badal). v3: Locally code all the timeout and end condition handling because a helper function is not allowed (review feedback from Lucas/Rodrigo). v4: Add more documentation comments and rename a define to add units (review feedback from Lucas). v5: Fix copy/paste error in xe_mmio_wait32_not (review feedback from Lucas) and rebase (no more return value from guc_wait_ucode). Signed-off-by: John Harrison Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20240518043700.3264362-3-John.C.Harrison@Intel.com

drm/xe/guc: Add VF2GUC_QUERY_SINGLE_KLV to ABI

2024-05-16T18:18:33+00:00

In upcoming patches we will add support to the VF driver to read its configuration from the GuC using special H2G actions. Add necessary definitions to our GuC firmware ABI header. Reviewed-by: Piotr Piórkowski Signed-off-by: Michal Wajdeczko Link: https://patchwork.freedesktop.org/patch/msgid/20240516110546.2216-4-michal.wajdeczko@intel.com