2 * Copyright © 2014-2017 Intel Corporation
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:
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
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
25 #ifndef _INTEL_UC_FW_H_
26 #define _INTEL_UC_FW_H_
29 struct drm_i915_private;
31 /* Home of GuC, HuC and DMC firmwares */
32 #define INTEL_UC_FIRMWARE_URL "https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915"
34 enum intel_uc_fw_status {
35 INTEL_UC_FIRMWARE_FAIL = -1,
36 INTEL_UC_FIRMWARE_NONE = 0,
37 INTEL_UC_FIRMWARE_PENDING,
38 INTEL_UC_FIRMWARE_SUCCESS
41 enum intel_uc_fw_type {
47 * This structure encapsulates all the data needed during the process
48 * of fetching, caching, and loading the firmware image into the uC.
53 struct drm_i915_gem_object *obj;
54 enum intel_uc_fw_status fetch_status;
55 enum intel_uc_fw_status load_status;
58 * The firmware build process will generate a version header file with major and
59 * minor version defined. The versions are built into CSS header of firmware.
60 * i915 kernel driver set the minimal firmware version required per platform.
67 enum intel_uc_fw_type type;
77 const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status)
80 case INTEL_UC_FIRMWARE_FAIL:
82 case INTEL_UC_FIRMWARE_NONE:
84 case INTEL_UC_FIRMWARE_PENDING:
86 case INTEL_UC_FIRMWARE_SUCCESS:
92 static inline const char *intel_uc_fw_type_repr(enum intel_uc_fw_type type)
95 case INTEL_UC_FW_TYPE_GUC:
97 case INTEL_UC_FW_TYPE_HUC:
104 void intel_uc_fw_init_early(struct intel_uc_fw *uc_fw,
105 enum intel_uc_fw_type type)
108 uc_fw->fetch_status = INTEL_UC_FIRMWARE_NONE;
109 uc_fw->load_status = INTEL_UC_FIRMWARE_NONE;
113 static inline bool intel_uc_fw_is_selected(struct intel_uc_fw *uc_fw)
115 return uc_fw->path != NULL;
118 static inline bool intel_uc_fw_is_loaded(struct intel_uc_fw *uc_fw)
120 return uc_fw->load_status == INTEL_UC_FIRMWARE_SUCCESS;
123 static inline void intel_uc_fw_sanitize(struct intel_uc_fw *uc_fw)
125 if (intel_uc_fw_is_loaded(uc_fw))
126 uc_fw->load_status = INTEL_UC_FIRMWARE_PENDING;
130 * intel_uc_fw_get_upload_size() - Get size of firmware needed to be uploaded.
131 * @uc_fw: uC firmware.
133 * Get the size of the firmware and header that will be uploaded to WOPCM.
135 * Return: Upload firmware size, or zero on firmware fetch failure.
137 static inline u32 intel_uc_fw_get_upload_size(struct intel_uc_fw *uc_fw)
139 if (uc_fw->fetch_status != INTEL_UC_FIRMWARE_SUCCESS)
142 return uc_fw->header_size + uc_fw->ucode_size;
145 void intel_uc_fw_fetch(struct drm_i915_private *dev_priv,
146 struct intel_uc_fw *uc_fw);
147 void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw);
148 int intel_uc_fw_upload(struct intel_uc_fw *uc_fw,
149 int (*xfer)(struct intel_uc_fw *uc_fw));
150 int intel_uc_fw_init(struct intel_uc_fw *uc_fw);
151 void intel_uc_fw_fini(struct intel_uc_fw *uc_fw);
152 u32 intel_uc_fw_ggtt_offset(struct intel_uc_fw *uc_fw);
153 void intel_uc_fw_dump(const struct intel_uc_fw *uc_fw, struct drm_printer *p);