1 /* SPDX-License-Identifier: MIT */
3 * Copyright © 2014-2019 Intel Corporation
9 #include "intel_uncore.h"
10 #include "intel_guc_fw.h"
11 #include "intel_guc_fwif.h"
12 #include "intel_guc_ct.h"
13 #include "intel_guc_log.h"
14 #include "intel_guc_reg.h"
15 #include "intel_uc_fw.h"
16 #include "i915_utils.h"
19 struct __guc_ads_blob;
22 * Top level structure of GuC. It handles firmware loading and manages client
23 * pool. intel_guc owns a intel_guc_client to replace the legacy ExecList
27 struct intel_uc_fw fw;
28 struct intel_guc_log log;
29 struct intel_guc_ct ct;
31 /* intel_guc_recv interrupt related state */
33 unsigned int msg_enabled_mask;
37 void (*reset)(struct intel_guc *guc);
38 void (*enable)(struct intel_guc *guc);
39 void (*disable)(struct intel_guc *guc);
42 bool submission_selected;
44 struct i915_vma *ads_vma;
45 struct __guc_ads_blob *ads_blob;
47 struct i915_vma *stage_desc_pool;
48 void *stage_desc_pool_vaddr;
50 /* Control params for fw initialization */
51 u32 params[GUC_CTL_MAX_DWORDS];
53 /* GuC's FW specific registers used in MMIO send */
57 enum forcewake_domains fw_domains;
60 /* register used to send interrupts to the GuC FW */
61 i915_reg_t notify_reg;
63 /* Store msg (e.g. log flush) that we see while CTBs are disabled */
66 /* To serialize the intel_guc_send actions */
67 struct mutex send_mutex;
70 static inline struct intel_guc *log_to_guc(struct intel_guc_log *log)
72 return container_of(log, struct intel_guc, log);
76 inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
78 return intel_guc_ct_send(&guc->ct, action, len, NULL, 0);
82 intel_guc_send_and_receive(struct intel_guc *guc, const u32 *action, u32 len,
83 u32 *response_buf, u32 response_buf_size)
85 return intel_guc_ct_send(&guc->ct, action, len,
86 response_buf, response_buf_size);
89 static inline void intel_guc_to_host_event_handler(struct intel_guc *guc)
91 intel_guc_ct_event_handler(&guc->ct);
94 /* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */
95 #define GUC_GGTT_TOP 0xFEE00000
98 * intel_guc_ggtt_offset() - Get and validate the GGTT offset of @vma
99 * @guc: intel_guc structure.
100 * @vma: i915 graphics virtual memory area.
102 * GuC does not allow any gfx GGTT address that falls into range
103 * [0, ggtt.pin_bias), which is reserved for Boot ROM, SRAM and WOPCM.
104 * Currently, in order to exclude [0, ggtt.pin_bias) address space from
105 * GGTT, all gfx objects used by GuC are allocated with intel_guc_allocate_vma()
106 * and pinned with PIN_OFFSET_BIAS along with the value of ggtt.pin_bias.
108 * Return: GGTT offset of the @vma.
110 static inline u32 intel_guc_ggtt_offset(struct intel_guc *guc,
111 struct i915_vma *vma)
113 u32 offset = i915_ggtt_offset(vma);
115 GEM_BUG_ON(offset < i915_ggtt_pin_bias(vma));
116 GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP));
121 void intel_guc_init_early(struct intel_guc *guc);
122 void intel_guc_init_send_regs(struct intel_guc *guc);
123 void intel_guc_write_params(struct intel_guc *guc);
124 int intel_guc_init(struct intel_guc *guc);
125 void intel_guc_fini(struct intel_guc *guc);
126 void intel_guc_notify(struct intel_guc *guc);
127 int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
128 u32 *response_buf, u32 response_buf_size);
129 int intel_guc_to_host_process_recv_msg(struct intel_guc *guc,
130 const u32 *payload, u32 len);
131 int intel_guc_sample_forcewake(struct intel_guc *guc);
132 int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
133 int intel_guc_suspend(struct intel_guc *guc);
134 int intel_guc_resume(struct intel_guc *guc);
135 struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
136 int intel_guc_allocate_and_map_vma(struct intel_guc *guc, u32 size,
137 struct i915_vma **out_vma, void **out_vaddr);
139 static inline bool intel_guc_is_supported(struct intel_guc *guc)
141 return intel_uc_fw_is_supported(&guc->fw);
144 static inline bool intel_guc_is_wanted(struct intel_guc *guc)
146 return intel_uc_fw_is_enabled(&guc->fw);
149 static inline bool intel_guc_is_used(struct intel_guc *guc)
151 GEM_BUG_ON(__intel_uc_fw_status(&guc->fw) == INTEL_UC_FIRMWARE_SELECTED);
152 return intel_uc_fw_is_available(&guc->fw);
155 static inline bool intel_guc_is_fw_running(struct intel_guc *guc)
157 return intel_uc_fw_is_running(&guc->fw);
160 static inline bool intel_guc_is_ready(struct intel_guc *guc)
162 return intel_guc_is_fw_running(guc) && intel_guc_ct_enabled(&guc->ct);
165 static inline int intel_guc_sanitize(struct intel_guc *guc)
167 intel_uc_fw_sanitize(&guc->fw);
168 intel_guc_ct_sanitize(&guc->ct);
174 static inline void intel_guc_enable_msg(struct intel_guc *guc, u32 mask)
176 spin_lock_irq(&guc->irq_lock);
177 guc->msg_enabled_mask |= mask;
178 spin_unlock_irq(&guc->irq_lock);
181 static inline void intel_guc_disable_msg(struct intel_guc *guc, u32 mask)
183 spin_lock_irq(&guc->irq_lock);
184 guc->msg_enabled_mask &= ~mask;
185 spin_unlock_irq(&guc->irq_lock);
188 int intel_guc_reset_engine(struct intel_guc *guc,
189 struct intel_engine_cs *engine);
191 void intel_guc_load_status(struct intel_guc *guc, struct drm_printer *p);