drivers/gpu/drm/i915/intel_guc_log.h

   1 /*
   2  * Copyright © 2014-2017 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #ifndef _INTEL_GUC_LOG_H_
  26 #define _INTEL_GUC_LOG_H_
  27
  28 #include <linux/workqueue.h>
  29
  30 #include "intel_guc_fwif.h"
  31
  32 struct drm_i915_private;
  33 struct intel_guc;
  34
  35 struct intel_guc_log {
  36         u32 flags;
  37         struct i915_vma *vma;
  38         /* The runtime stuff gets created only when GuC logging gets enabled */
  39         struct {
  40                 void *buf_addr;
  41                 struct workqueue_struct *flush_wq;
  42                 struct work_struct flush_work;
  43                 struct rchan *relay_chan;
  44         } runtime;
  45         /* logging related stats */
  46         u32 capture_miss_count;
  47         u32 flush_interrupt_count;
  48         u32 prev_overflow_count[GUC_MAX_LOG_BUFFER];
  49         u32 total_overflow_count[GUC_MAX_LOG_BUFFER];
  50         u32 flush_count[GUC_MAX_LOG_BUFFER];
  51 };
  52
  53 int intel_guc_log_create(struct intel_guc *guc);
  54 void intel_guc_log_destroy(struct intel_guc *guc);
  55 int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val);
  56 void i915_guc_log_register(struct drm_i915_private *dev_priv);
  57 void i915_guc_log_unregister(struct drm_i915_private *dev_priv);
  58
  59 #endif