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77b6f79df6
Update to the latest GuC release. The latest GuC firmware introduces a number of interface changes: GuC may return NO_RESPONSE_RETRY message for requests sent over CTB. Add support for this reply and try resending the request again as a new CTB message. A KLV (key-length-value) mechanism is now used for passing configuration data such as CTB management. With the new KLV scheme, the old CTB management actions are no longer used and are removed. Register capture on hang is now supported by GuC. Full i915 support for this will be added by a later patch. A minimum support of providing capture memory and register lists is required though, so add that in. The device id of the current platform needs to be provided at init time. The 'poll CS' w/a (Wa_22012773006) was blanket enabled by previous versions of GuC. It must now be explicitly requested by the KMD. So, add in the code to turn it on when relevant. The GuC log entry format has changed. This requires adding a new field to the log header structure to mark the wrap point at the end of the buffer (as the buffer size is no longer a multiple of the log entry size). New CTB notification messages are now sent for some things that were previously only sent via MMIO notifications. Of these, the crash dump notification was not really being handled by i915. It called the log flush code but that only flushed the regular debug log and then only if relay logging was enabled. So just report an error message instead. The 'exception' notification was just being ignored completely. So add an error message for that as well. Note that in either the crash dump or the exception case, the GuC is basically dead. The KMD will detect this via the heartbeat and trigger both an error log (which will include the crash dump as part of the GuC log) and a GT reset. So no other processing is really required. Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220107000622.292081-3-John.C.Harrison@Intel.com
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2014-2019 Intel Corporation
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*/
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#ifndef _INTEL_GUC_LOG_H_
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#define _INTEL_GUC_LOG_H_
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#include <linux/mutex.h>
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#include <linux/relay.h>
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#include <linux/workqueue.h>
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#include "intel_guc_fwif.h"
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#include "i915_gem.h"
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struct intel_guc;
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#if defined(CONFIG_DRM_I915_DEBUG_GUC)
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#define CRASH_BUFFER_SIZE SZ_2M
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#define DEBUG_BUFFER_SIZE SZ_16M
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#define CAPTURE_BUFFER_SIZE SZ_4M
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#elif defined(CONFIG_DRM_I915_DEBUG_GEM)
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#define CRASH_BUFFER_SIZE SZ_1M
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#define DEBUG_BUFFER_SIZE SZ_2M
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#define CAPTURE_BUFFER_SIZE SZ_1M
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#else
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#define CRASH_BUFFER_SIZE SZ_8K
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#define DEBUG_BUFFER_SIZE SZ_64K
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#define CAPTURE_BUFFER_SIZE SZ_16K
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#endif
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/*
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* While we're using plain log level in i915, GuC controls are much more...
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* "elaborate"? We have a couple of bits for verbosity, separate bit for actual
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* log enabling, and separate bit for default logging - which "conveniently"
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* ignores the enable bit.
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*/
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#define GUC_LOG_LEVEL_DISABLED 0
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#define GUC_LOG_LEVEL_NON_VERBOSE 1
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#define GUC_LOG_LEVEL_IS_ENABLED(x) ((x) > GUC_LOG_LEVEL_DISABLED)
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#define GUC_LOG_LEVEL_IS_VERBOSE(x) ((x) > GUC_LOG_LEVEL_NON_VERBOSE)
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#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \
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typeof(x) _x = (x); \
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GUC_LOG_LEVEL_IS_VERBOSE(_x) ? _x - 2 : 0; \
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})
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#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
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#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)
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struct intel_guc_log {
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u32 level;
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struct i915_vma *vma;
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struct {
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void *buf_addr;
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bool started;
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struct work_struct flush_work;
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struct rchan *channel;
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struct mutex lock;
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u32 full_count;
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} relay;
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/* logging related stats */
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struct {
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u32 sampled_overflow;
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u32 overflow;
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u32 flush;
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} stats[GUC_MAX_LOG_BUFFER];
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};
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void intel_guc_log_init_early(struct intel_guc_log *log);
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int intel_guc_log_create(struct intel_guc_log *log);
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void intel_guc_log_destroy(struct intel_guc_log *log);
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int intel_guc_log_set_level(struct intel_guc_log *log, u32 level);
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bool intel_guc_log_relay_created(const struct intel_guc_log *log);
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int intel_guc_log_relay_open(struct intel_guc_log *log);
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int intel_guc_log_relay_start(struct intel_guc_log *log);
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void intel_guc_log_relay_flush(struct intel_guc_log *log);
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void intel_guc_log_relay_close(struct intel_guc_log *log);
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void intel_guc_log_handle_flush_event(struct intel_guc_log *log);
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static inline u32 intel_guc_log_get_level(struct intel_guc_log *log)
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{
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return log->level;
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}
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void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p);
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int intel_guc_log_dump(struct intel_guc_log *log, struct drm_printer *p,
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bool dump_load_err);
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#endif
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