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11 * The above copyright notice and this permission notice (including the next
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28 #include "intel_uncore.h"
29 #include "intel_guc_fw.h"
30 #include "intel_guc_fwif.h"
31 #include "intel_guc_ct.h"
32 #include "intel_guc_log.h"
33 #include "intel_guc_reg.h"
34 #include "intel_uc_fw.h"
37 struct guc_preempt_work {
38 struct work_struct work;
39 struct intel_engine_cs *engine;
43 * Top level structure of GuC. It handles firmware loading and manages client
44 * pool and doorbells. intel_guc owns a intel_guc_client to replace the legacy
45 * ExecList submission.
48 struct intel_uc_fw fw;
49 struct intel_guc_log log;
50 struct intel_guc_ct ct;
52 /* Log snapshot if GuC errors during load */
53 struct drm_i915_gem_object *load_err_log;
55 /* intel_guc_recv interrupt related state */
57 bool interrupts_enabled;
58 unsigned int msg_enabled_mask;
60 struct i915_vma *ads_vma;
61 struct i915_vma *stage_desc_pool;
62 void *stage_desc_pool_vaddr;
64 struct i915_vma *shared_data;
65 void *shared_data_vaddr;
67 struct intel_guc_client *execbuf_client;
68 struct intel_guc_client *preempt_client;
70 struct guc_preempt_work preempt_work[I915_NUM_ENGINES];
71 struct workqueue_struct *preempt_wq;
73 DECLARE_BITMAP(doorbell_bitmap, GUC_NUM_DOORBELLS);
74 /* Cyclic counter mod pagesize */
77 /* GuC's FW specific registers used in MMIO send */
81 enum forcewake_domains fw_domains;
84 /* To serialize the intel_guc_send actions */
85 struct mutex send_mutex;
87 /* GuC's FW specific send function */
88 int (*send)(struct intel_guc *guc, const u32 *data, u32 len,
89 u32 *response_buf, u32 response_buf_size);
91 /* GuC's FW specific event handler function */
92 void (*handler)(struct intel_guc *guc);
94 /* GuC's FW specific notify function */
95 void (*notify)(struct intel_guc *guc);
98 static inline bool intel_guc_is_alive(struct intel_guc *guc)
100 return intel_uc_fw_is_loaded(&guc->fw);
104 inline int intel_guc_send(struct intel_guc *guc, const u32 *action, u32 len)
106 return guc->send(guc, action, len, NULL, 0);
110 intel_guc_send_and_receive(struct intel_guc *guc, const u32 *action, u32 len,
111 u32 *response_buf, u32 response_buf_size)
113 return guc->send(guc, action, len, response_buf, response_buf_size);
116 static inline void intel_guc_notify(struct intel_guc *guc)
121 static inline void intel_guc_to_host_event_handler(struct intel_guc *guc)
126 /* GuC addresses above GUC_GGTT_TOP also don't map through the GTT */
127 #define GUC_GGTT_TOP 0xFEE00000
130 * intel_guc_ggtt_offset() - Get and validate the GGTT offset of @vma
131 * @guc: intel_guc structure.
132 * @vma: i915 graphics virtual memory area.
134 * GuC does not allow any gfx GGTT address that falls into range
135 * [0, ggtt.pin_bias), which is reserved for Boot ROM, SRAM and WOPCM.
136 * Currently, in order to exclude [0, ggtt.pin_bias) address space from
137 * GGTT, all gfx objects used by GuC are allocated with intel_guc_allocate_vma()
138 * and pinned with PIN_OFFSET_BIAS along with the value of ggtt.pin_bias.
140 * Return: GGTT offset of the @vma.
142 static inline u32 intel_guc_ggtt_offset(struct intel_guc *guc,
143 struct i915_vma *vma)
145 u32 offset = i915_ggtt_offset(vma);
147 GEM_BUG_ON(offset < i915_ggtt_pin_bias(vma));
148 GEM_BUG_ON(range_overflows_t(u64, offset, vma->size, GUC_GGTT_TOP));
153 void intel_guc_init_early(struct intel_guc *guc);
154 void intel_guc_init_send_regs(struct intel_guc *guc);
155 void intel_guc_init_params(struct intel_guc *guc);
156 int intel_guc_init_misc(struct intel_guc *guc);
157 int intel_guc_init(struct intel_guc *guc);
158 void intel_guc_fini(struct intel_guc *guc);
159 void intel_guc_fini_misc(struct intel_guc *guc);
160 int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len,
161 u32 *response_buf, u32 response_buf_size);
162 int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len,
163 u32 *response_buf, u32 response_buf_size);
164 void intel_guc_to_host_event_handler(struct intel_guc *guc);
165 void intel_guc_to_host_event_handler_nop(struct intel_guc *guc);
166 void intel_guc_to_host_event_handler_mmio(struct intel_guc *guc);
167 void intel_guc_to_host_process_recv_msg(struct intel_guc *guc, u32 msg);
168 int intel_guc_sample_forcewake(struct intel_guc *guc);
169 int intel_guc_auth_huc(struct intel_guc *guc, u32 rsa_offset);
170 int intel_guc_suspend(struct intel_guc *guc);
171 int intel_guc_resume(struct intel_guc *guc);
172 struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size);
173 u32 intel_guc_reserved_gtt_size(struct intel_guc *guc);
175 static inline int intel_guc_sanitize(struct intel_guc *guc)
177 intel_uc_fw_sanitize(&guc->fw);
181 static inline void intel_guc_enable_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 static inline void intel_guc_disable_msg(struct intel_guc *guc, u32 mask)
190 spin_lock_irq(&guc->irq_lock);
191 guc->msg_enabled_mask &= ~mask;
192 spin_unlock_irq(&guc->irq_lock);
195 int intel_guc_reset_engine(struct intel_guc *guc,
196 struct intel_engine_cs *engine);