Files
linux/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h
Alan Previn a0f1f7b4f7 drm/i915/guc: Print the GuC error capture output register list.
Print the GuC captured error state register list (string names
and values) when gpu_coredump_state printout is invoked via
the i915 debugfs for flushing the gpu error-state that was
captured prior.

Since GuC could have reported multiple engine register dumps
in a single notification event, parse the captured data
(appearing as a stream of structures) to identify each dump as
a different 'engine-capture-group-output'.

Finally, for each 'engine-capture-group-output' that is found,
verify if the engine register dump corresponds to the
engine_coredump content that was previously populated by the
i915_gpu_coredump function. That function would have copied
the context's vma's including the bacth buffer during the
G2H-context-reset notification that occurred earlier. Perform
this verification check by comparing guc_id, lrca and engine-
instance obtained from the 'engine-capture-group-output' vs a
copy of that same info taken during i915_gpu_coredump. If
they match, then print those vma's as well (such as the batch
buffers).

NOTE: the output format was verified using the gem_exec_capture
IGT test.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220321164527.2500062-14-alan.previn.teres.alexis@intel.com
2022-03-22 10:33:31 -07:00

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C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2021-2021 Intel Corporation
*/
#ifndef _INTEL_GUC_CAPTURE_H
#define _INTEL_GUC_CAPTURE_H
#include <linux/types.h>
struct drm_i915_error_state_buf;
struct guc_gt_system_info;
struct intel_engine_coredump;
struct intel_context;
struct intel_gt;
struct intel_guc;
void intel_guc_capture_free_node(struct intel_engine_coredump *ee);
int intel_guc_capture_print_engine_node(struct drm_i915_error_state_buf *m,
const struct intel_engine_coredump *ee);
void intel_guc_capture_get_matching_node(struct intel_gt *gt, struct intel_engine_coredump *ee,
struct intel_context *ce);
void intel_guc_capture_process(struct intel_guc *guc);
int intel_guc_capture_output_min_size_est(struct intel_guc *guc);
int intel_guc_capture_getlist(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
void **outptr);
int intel_guc_capture_getlistsize(struct intel_guc *guc, u32 owner, u32 type, u32 classid,
size_t *size);
int intel_guc_capture_getnullheader(struct intel_guc *guc, void **outptr, size_t *size);
void intel_guc_capture_destroy(struct intel_guc *guc);
int intel_guc_capture_init(struct intel_guc *guc);
#endif /* _INTEL_GUC_CAPTURE_H */