1 /* 2 * Copyright © 2014 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 #ifndef _INTEL_GUC_H_ 25 #define _INTEL_GUC_H_ 26 27 #include "intel_guc_fwif.h" 28 #include "i915_guc_reg.h" 29 30 struct i915_guc_client { 31 struct drm_i915_gem_object *client_obj; 32 struct intel_context *owner; 33 struct intel_guc *guc; 34 uint32_t priority; 35 uint32_t ctx_index; 36 37 uint32_t proc_desc_offset; 38 uint32_t doorbell_offset; 39 uint32_t cookie; 40 uint16_t doorbell_id; 41 uint16_t padding; /* Maintain alignment */ 42 43 uint32_t wq_offset; 44 uint32_t wq_size; 45 46 struct lock wq_lock; /* Protects all data below */ 47 uint32_t wq_tail; 48 49 /* GuC submission statistics & status */ 50 uint64_t submissions[I915_NUM_RINGS]; 51 uint32_t q_fail; 52 uint32_t b_fail; 53 int retcode; 54 }; 55 56 enum intel_guc_fw_status { 57 GUC_FIRMWARE_FAIL = -1, 58 GUC_FIRMWARE_NONE = 0, 59 GUC_FIRMWARE_PENDING, 60 GUC_FIRMWARE_SUCCESS 61 }; 62 63 /* 64 * This structure encapsulates all the data needed during the process 65 * of fetching, caching, and loading the firmware image into the GuC. 66 */ 67 struct intel_guc_fw { 68 struct drm_device * guc_dev; 69 const char * guc_fw_path; 70 size_t guc_fw_size; 71 struct drm_i915_gem_object * guc_fw_obj; 72 enum intel_guc_fw_status guc_fw_fetch_status; 73 enum intel_guc_fw_status guc_fw_load_status; 74 75 uint16_t guc_fw_major_wanted; 76 uint16_t guc_fw_minor_wanted; 77 uint16_t guc_fw_major_found; 78 uint16_t guc_fw_minor_found; 79 }; 80 81 struct intel_guc { 82 struct intel_guc_fw guc_fw; 83 84 uint32_t log_flags; 85 struct drm_i915_gem_object *log_obj; 86 87 struct drm_i915_gem_object *ctx_pool_obj; 88 struct ida ctx_ids; 89 90 struct i915_guc_client *execbuf_client; 91 92 struct spinlock host2guc_lock; /* Protects all data below */ 93 94 DECLARE_BITMAP(doorbell_bitmap, GUC_MAX_DOORBELLS); 95 uint32_t db_cacheline; /* Cyclic counter mod pagesize */ 96 97 /* Action status & statistics */ 98 uint64_t action_count; /* Total commands issued */ 99 uint32_t action_cmd; /* Last command word */ 100 uint32_t action_status; /* Last return status */ 101 uint32_t action_fail; /* Total number of failures */ 102 int32_t action_err; /* Last error code */ 103 104 uint64_t submissions[I915_NUM_RINGS]; 105 uint32_t last_seqno[I915_NUM_RINGS]; 106 }; 107 108 /* intel_guc_loader.c */ 109 extern void intel_guc_ucode_init(struct drm_device *dev); 110 extern int intel_guc_ucode_load(struct drm_device *dev); 111 extern void intel_guc_ucode_fini(struct drm_device *dev); 112 extern const char *intel_guc_fw_status_repr(enum intel_guc_fw_status status); 113 extern int intel_guc_suspend(struct drm_device *dev); 114 extern int intel_guc_resume(struct drm_device *dev); 115 116 /* i915_guc_submission.c */ 117 int i915_guc_submission_init(struct drm_device *dev); 118 int i915_guc_submission_enable(struct drm_device *dev); 119 int i915_guc_submit(struct i915_guc_client *client, 120 struct drm_i915_gem_request *rq); 121 void i915_guc_submission_disable(struct drm_device *dev); 122 void i915_guc_submission_fini(struct drm_device *dev); 123 124 #endif 125