diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_guc.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h new file mode 100644 index 000000000000..081d5f648d26 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -0,0 +1,124 @@ +/* + * Copyright © 2014 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ +#ifndef _INTEL_GUC_H_ +#define _INTEL_GUC_H_ + +#include "intel_guc_fwif.h" +#include "i915_guc_reg.h" + +struct i915_guc_client { + struct drm_i915_gem_object *client_obj; + struct intel_context *owner; + struct intel_guc *guc; + uint32_t priority; + uint32_t ctx_index; + + uint32_t proc_desc_offset; + uint32_t doorbell_offset; + uint32_t cookie; + uint16_t doorbell_id; + uint16_t padding; /* Maintain alignment */ + + uint32_t wq_offset; + uint32_t wq_size; + + spinlock_t wq_lock; /* Protects all data below */ + uint32_t wq_tail; + + /* GuC submission statistics & status */ + uint64_t submissions[I915_NUM_RINGS]; + uint32_t q_fail; + uint32_t b_fail; + int retcode; +}; + +enum intel_guc_fw_status { + GUC_FIRMWARE_FAIL = -1, + GUC_FIRMWARE_NONE = 0, + GUC_FIRMWARE_PENDING, + GUC_FIRMWARE_SUCCESS +}; + +/* + * This structure encapsulates all the data needed during the process + * of fetching, caching, and loading the firmware image into the GuC. + */ +struct intel_guc_fw { + struct drm_device * guc_dev; + const char * guc_fw_path; + size_t guc_fw_size; + struct drm_i915_gem_object * guc_fw_obj; + enum intel_guc_fw_status guc_fw_fetch_status; + enum intel_guc_fw_status guc_fw_load_status; + + uint16_t guc_fw_major_wanted; + uint16_t guc_fw_minor_wanted; + uint16_t guc_fw_major_found; + uint16_t guc_fw_minor_found; +}; + +struct intel_guc { + struct intel_guc_fw guc_fw; + + uint32_t log_flags; + struct drm_i915_gem_object *log_obj; + + struct drm_i915_gem_object *ctx_pool_obj; + struct ida ctx_ids; + + struct i915_guc_client *execbuf_client; + + spinlock_t host2guc_lock; /* Protects all data below */ + + DECLARE_BITMAP(doorbell_bitmap, GUC_MAX_DOORBELLS); + uint32_t db_cacheline; /* Cyclic counter mod pagesize */ + + /* Action status & statistics */ + uint64_t action_count; /* Total commands issued */ + uint32_t action_cmd; /* Last command word */ + uint32_t action_status; /* Last return status */ + uint32_t action_fail; /* Total number of failures */ + int32_t action_err; /* Last error code */ + + uint64_t submissions[I915_NUM_RINGS]; + uint32_t last_seqno[I915_NUM_RINGS]; +}; + +/* intel_guc_loader.c */ +extern void intel_guc_ucode_init(struct drm_device *dev); +extern int intel_guc_ucode_load(struct drm_device *dev); +extern void intel_guc_ucode_fini(struct drm_device *dev); +extern const char *intel_guc_fw_status_repr(enum intel_guc_fw_status status); +extern int intel_guc_suspend(struct drm_device *dev); +extern int intel_guc_resume(struct drm_device *dev); + +/* i915_guc_submission.c */ +int i915_guc_submission_init(struct drm_device *dev); +int i915_guc_submission_enable(struct drm_device *dev); +int i915_guc_submit(struct i915_guc_client *client, + struct drm_i915_gem_request *rq); +void i915_guc_submission_disable(struct drm_device *dev); +void i915_guc_submission_fini(struct drm_device *dev); + +#endif |