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cb5d64e9f1
While both naming and actual log enable logic in GuC interface are confusing, we can simply expose the default log as yet another log level. GuC logic aside, from i915 point of view we now have the following GuC log levels: 0 Log disabled 1 Non-verbose log 2-5 Verbose log v2: Adjust naming after rebase. v3: Fixed the log_level logic error introduced on rebase. Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180319095348.9716-10-michal.winiarski@intel.com
88 lines
3 KiB
C
88 lines
3 KiB
C
/*
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* Copyright © 2014-2017 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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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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struct intel_guc;
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/*
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* The first page is to save log buffer state. Allocate one
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* extra page for others in case for overlap
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*/
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#define GUC_LOG_SIZE ((1 + GUC_LOG_DPC_PAGES + 1 + GUC_LOG_ISR_PAGES + \
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1 + GUC_LOG_CRASH_PAGES + 1) << PAGE_SHIFT)
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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_TO_ENABLED(x) ((x) > 0)
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#define GUC_LOG_LEVEL_TO_VERBOSE(x) ((x) > 1)
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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_TO_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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struct intel_guc_log {
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u32 flags;
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struct i915_vma *vma;
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struct {
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void *buf_addr;
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struct workqueue_struct *flush_wq;
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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_level_get(struct intel_guc_log *log);
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int intel_guc_log_level_set(struct intel_guc_log *log, u64 control_val);
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bool intel_guc_log_relay_enabled(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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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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#endif
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