1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright(c) 2021-2022 Intel Corporation
4 *
5 * Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 * Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 */
8
9 #ifndef __SOUND_SOC_INTEL_AVS_H
10 #define __SOUND_SOC_INTEL_AVS_H
11
12 #include <linux/debugfs.h>
13 #include <linux/device.h>
14 #include <linux/firmware.h>
15 #include <linux/kfifo.h>
16 #include <sound/hda_codec.h>
17 #include <sound/hda_register.h>
18 #include <sound/soc-component.h>
19 #include "messages.h"
20 #include "registers.h"
21
22 struct avs_dev;
23 struct avs_tplg;
24 struct avs_tplg_library;
25 struct avs_soc_component;
26 struct avs_ipc_msg;
27
28 #ifdef CONFIG_ACPI
29 #define AVS_S0IX_SUPPORTED \
30 (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0)
31 #else
32 #define AVS_S0IX_SUPPORTED false
33 #endif
34
35 /*
36 * struct avs_dsp_ops - Platform-specific DSP operations
37 *
38 * @power: Power on or off DSP cores
39 * @reset: Enter or exit reset state on DSP cores
40 * @stall: Stall or run DSP cores
41 * @irq_handler: Top half of IPC servicing
42 * @irq_thread: Bottom half of IPC servicing
43 * @int_control: Enable or disable IPC interrupts
44 */
45 struct avs_dsp_ops {
46 int (* const power)(struct avs_dev *, u32, bool);
47 int (* const reset)(struct avs_dev *, u32, bool);
48 int (* const stall)(struct avs_dev *, u32, bool);
49 irqreturn_t (* const dsp_interrupt)(struct avs_dev *);
50 void (* const int_control)(struct avs_dev *, bool);
51 int (* const load_basefw)(struct avs_dev *, struct firmware *);
52 int (* const load_lib)(struct avs_dev *, struct firmware *, u32);
53 int (* const transfer_mods)(struct avs_dev *, bool, struct avs_module_entry *, u32);
54 int (* const config_basefw)(struct avs_dev *);
55 int (* const enable_logs)(struct avs_dev *, enum avs_log_enable, u32, u32, unsigned long,
56 u32 *);
57 int (* const log_buffer_offset)(struct avs_dev *, u32);
58 int (* const log_buffer_status)(struct avs_dev *, union avs_notify_msg *);
59 int (* const coredump)(struct avs_dev *, union avs_notify_msg *);
60 bool (* const d0ix_toggle)(struct avs_dev *, struct avs_ipc_msg *, bool);
61 int (* const set_d0ix)(struct avs_dev *, bool);
62 };
63
64 #define avs_dsp_op(adev, op, ...) \
65 ((adev)->spec->dsp_ops->op(adev, ## __VA_ARGS__))
66
67 extern const struct avs_dsp_ops avs_skl_dsp_ops;
68 extern const struct avs_dsp_ops avs_apl_dsp_ops;
69 extern const struct avs_dsp_ops avs_cnl_dsp_ops;
70 extern const struct avs_dsp_ops avs_icl_dsp_ops;
71 extern const struct avs_dsp_ops avs_tgl_dsp_ops;
72
73 #define AVS_PLATATTR_CLDMA BIT_ULL(0)
74 #define AVS_PLATATTR_IMR BIT_ULL(1)
75
76 #define avs_platattr_test(adev, attr) \
77 ((adev)->spec->attributes & AVS_PLATATTR_##attr)
78
79 struct avs_sram_spec {
80 const u32 base_offset;
81 const u32 window_size;
82 const u32 rom_status_offset;
83 };
84
85 struct avs_hipc_spec {
86 const u32 req_offset;
87 const u32 req_ext_offset;
88 const u32 req_busy_mask;
89 const u32 ack_offset;
90 const u32 ack_done_mask;
91 const u32 rsp_offset;
92 const u32 rsp_busy_mask;
93 const u32 ctl_offset;
94 };
95
96 /* Platform specific descriptor */
97 struct avs_spec {
98 const char *name;
99
100 const struct avs_dsp_ops *const dsp_ops;
101 struct avs_fw_version min_fw_version; /* anything below is rejected */
102
103 const u32 core_init_mask; /* used during DSP boot */
104 const u64 attributes; /* bitmask of AVS_PLATATTR_* */
105 const struct avs_sram_spec *sram;
106 const struct avs_hipc_spec *hipc;
107 };
108
109 struct avs_fw_entry {
110 const char *name;
111 const struct firmware *fw;
112
113 struct list_head node;
114 };
115
116 /*
117 * struct avs_dev - Intel HD-Audio driver data
118 *
119 * @dev: PCI device
120 * @dsp_ba: DSP bar address
121 * @spec: platform-specific descriptor
122 * @fw_cfg: Firmware configuration, obtained through FW_CONFIG message
123 * @hw_cfg: Hardware configuration, obtained through HW_CONFIG message
124 * @mods_info: Available module-types, obtained through MODULES_INFO message
125 * @mod_idas: Module instance ID pool, one per module-type
126 * @modres_mutex: For synchronizing any @mods_info updates
127 * @ppl_ida: Pipeline instance ID pool
128 * @fw_list: List of libraries loaded, including base firmware
129 */
130 struct avs_dev {
131 struct hda_bus base;
132 struct device *dev;
133
134 void __iomem *dsp_ba;
135 const struct avs_spec *spec;
136 struct avs_ipc *ipc;
137
138 struct avs_fw_cfg fw_cfg;
139 struct avs_hw_cfg hw_cfg;
140 struct avs_mods_info *mods_info;
141 struct ida **mod_idas;
142 struct mutex modres_mutex;
143 void *modcfg_buf; /* module configuration buffer */
144 struct ida ppl_ida;
145 struct list_head fw_list;
146 int *core_refs; /* reference count per core */
147 char **lib_names;
148 int num_lp_paths;
149 atomic_t l1sen_counter; /* controls whether L1SEN should be disabled */
150
151 struct completion fw_ready;
152 struct work_struct probe_work;
153
154 struct list_head comp_list;
155 struct mutex comp_list_mutex;
156 struct list_head path_list;
157 spinlock_t path_list_lock;
158 struct mutex path_mutex;
159
160 spinlock_t trace_lock; /* serialize debug window I/O between each LOG_BUFFER_STATUS */
161 #ifdef CONFIG_DEBUG_FS
162 struct kfifo trace_fifo;
163 wait_queue_head_t trace_waitq;
164 u32 aging_timer_period;
165 u32 fifo_full_timer_period;
166 u32 logged_resources; /* context dependent: core or library */
167 struct dentry *debugfs_root;
168 /* probes */
169 struct hdac_ext_stream *extractor;
170 unsigned int num_probe_streams;
171 #endif
172 };
173
174 /* from hda_bus to avs_dev */
175 #define hda_to_avs(hda) container_of(hda, struct avs_dev, base)
176 /* from hdac_bus to avs_dev */
177 #define hdac_to_avs(hdac) hda_to_avs(to_hda_bus(hdac))
178 /* from device to avs_dev */
179 #define to_avs_dev(dev) \
180 ({ \
181 struct hdac_bus *__bus = dev_get_drvdata(dev); \
182 hdac_to_avs(__bus); \
183 })
184
185 int avs_dsp_core_power(struct avs_dev *adev, u32 core_mask, bool power);
186 int avs_dsp_core_reset(struct avs_dev *adev, u32 core_mask, bool reset);
187 int avs_dsp_core_stall(struct avs_dev *adev, u32 core_mask, bool stall);
188 int avs_dsp_core_enable(struct avs_dev *adev, u32 core_mask);
189 int avs_dsp_core_disable(struct avs_dev *adev, u32 core_mask);
190
191 /* Inter Process Communication */
192
193 struct avs_ipc_msg {
194 union {
195 u64 header;
196 union avs_global_msg glb;
197 union avs_reply_msg rsp;
198 };
199 void *data;
200 size_t size;
201 };
202
203 /*
204 * struct avs_ipc - DSP IPC context
205 *
206 * @dev: PCI device
207 * @rx: Reply message cache
208 * @default_timeout_ms: default message timeout in MS
209 * @ready: whether firmware is ready and communication is open
210 * @rx_completed: whether RX for previously sent TX has been received
211 * @rx_lock: for serializing manipulation of rx_* fields
212 * @msg_lock: for synchronizing request handling
213 * @done_completion: DONE-part of IPC i.e. ROM and ACKs from FW
214 * @busy_completion: BUSY-part of IPC i.e. receiving responses from FW
215 */
216 struct avs_ipc {
217 struct device *dev;
218
219 struct avs_ipc_msg rx;
220 u32 default_timeout_ms;
221 bool ready;
222 atomic_t recovering;
223
224 bool rx_completed;
225 spinlock_t rx_lock;
226 struct mutex msg_mutex;
227 struct completion done_completion;
228 struct completion busy_completion;
229
230 struct work_struct recovery_work;
231 struct delayed_work d0ix_work;
232 atomic_t d0ix_disable_depth;
233 bool in_d0ix;
234 };
235
236 #define AVS_EIPC EREMOTEIO
237 /*
238 * IPC handlers may return positive value (firmware error code) what denotes
239 * successful HOST <-> DSP communication yet failure to process specific request.
240 *
241 * Below macro converts returned value to linux kernel error code.
242 * All IPC callers MUST use it as soon as firmware error code is consumed.
243 */
244 #define AVS_IPC_RET(ret) \
245 (((ret) <= 0) ? (ret) : -AVS_EIPC)
246
247 void avs_dsp_process_response(struct avs_dev *adev, u64 header);
248 int avs_dsp_send_msg_timeout(struct avs_dev *adev, struct avs_ipc_msg *request,
249 struct avs_ipc_msg *reply, int timeout, const char *name);
250 int avs_dsp_send_msg(struct avs_dev *adev, struct avs_ipc_msg *request,
251 struct avs_ipc_msg *reply, const char *name);
252 /* Two variants below are for messages that control DSP power states. */
253 int avs_dsp_send_pm_msg_timeout(struct avs_dev *adev, struct avs_ipc_msg *request,
254 struct avs_ipc_msg *reply, int timeout, bool wake_d0i0,
255 const char *name);
256 int avs_dsp_send_pm_msg(struct avs_dev *adev, struct avs_ipc_msg *request,
257 struct avs_ipc_msg *reply, bool wake_d0i0, const char *name);
258 int avs_dsp_send_rom_msg_timeout(struct avs_dev *adev, struct avs_ipc_msg *request, int timeout,
259 const char *name);
260 int avs_dsp_send_rom_msg(struct avs_dev *adev, struct avs_ipc_msg *request, const char *name);
261 void avs_dsp_interrupt_control(struct avs_dev *adev, bool enable);
262 int avs_ipc_init(struct avs_ipc *ipc, struct device *dev);
263 void avs_ipc_block(struct avs_ipc *ipc);
264
265 int avs_dsp_disable_d0ix(struct avs_dev *adev);
266 int avs_dsp_enable_d0ix(struct avs_dev *adev);
267
268 void avs_skl_ipc_interrupt(struct avs_dev *adev);
269 irqreturn_t avs_cnl_dsp_interrupt(struct avs_dev *adev);
270 int avs_apl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,
271 u32 fifo_full_period, unsigned long resource_mask, u32 *priorities);
272 int avs_icl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,
273 u32 fifo_full_period, unsigned long resource_mask, u32 *priorities);
274 int avs_skl_log_buffer_offset(struct avs_dev *adev, u32 core);
275 int avs_icl_log_buffer_offset(struct avs_dev *adev, u32 core);
276 int avs_apl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg);
277 int avs_apl_coredump(struct avs_dev *adev, union avs_notify_msg *msg);
278 bool avs_apl_d0ix_toggle(struct avs_dev *adev, struct avs_ipc_msg *tx, bool wake);
279 bool avs_icl_d0ix_toggle(struct avs_dev *adev, struct avs_ipc_msg *tx, bool wake);
280 int avs_apl_set_d0ix(struct avs_dev *adev, bool enable);
281 int avs_icl_set_d0ix(struct avs_dev *adev, bool enable);
282
283 /* Firmware resources management */
284
285 int avs_get_module_entry(struct avs_dev *adev, const guid_t *uuid, struct avs_module_entry *entry);
286 int avs_get_module_id_entry(struct avs_dev *adev, u32 module_id, struct avs_module_entry *entry);
287 int avs_get_module_id(struct avs_dev *adev, const guid_t *uuid);
288 bool avs_is_module_ida_empty(struct avs_dev *adev, u32 module_id);
289
290 int avs_module_info_init(struct avs_dev *adev, bool purge);
291 void avs_module_info_free(struct avs_dev *adev);
292 int avs_module_id_alloc(struct avs_dev *adev, u16 module_id);
293 void avs_module_id_free(struct avs_dev *adev, u16 module_id, u8 instance_id);
294 int avs_request_firmware(struct avs_dev *adev, const struct firmware **fw_p, const char *name);
295 void avs_release_last_firmware(struct avs_dev *adev);
296 void avs_release_firmwares(struct avs_dev *adev);
297
298 int avs_dsp_init_module(struct avs_dev *adev, u16 module_id, u8 ppl_instance_id,
299 u8 core_id, u8 domain, void *param, u32 param_size,
300 u8 *instance_id);
301 void avs_dsp_delete_module(struct avs_dev *adev, u16 module_id, u8 instance_id,
302 u8 ppl_instance_id, u8 core_id);
303 int avs_dsp_create_pipeline(struct avs_dev *adev, u16 req_size, u8 priority,
304 bool lp, u16 attributes, u8 *instance_id);
305 int avs_dsp_delete_pipeline(struct avs_dev *adev, u8 instance_id);
306
307 /* Firmware loading */
308
309 void avs_hda_clock_gating_enable(struct avs_dev *adev, bool enable);
310 void avs_hda_power_gating_enable(struct avs_dev *adev, bool enable);
311 void avs_hda_l1sen_enable(struct avs_dev *adev, bool enable);
312
313 int avs_dsp_load_libraries(struct avs_dev *adev, struct avs_tplg_library *libs, u32 num_libs);
314 int avs_dsp_boot_firmware(struct avs_dev *adev, bool purge);
315 int avs_dsp_first_boot_firmware(struct avs_dev *adev);
316
317 int avs_cldma_load_basefw(struct avs_dev *adev, struct firmware *fw);
318 int avs_cldma_load_library(struct avs_dev *adev, struct firmware *lib, u32 id);
319 int avs_cldma_transfer_modules(struct avs_dev *adev, bool load,
320 struct avs_module_entry *mods, u32 num_mods);
321 int avs_hda_load_basefw(struct avs_dev *adev, struct firmware *fw);
322 int avs_hda_load_library(struct avs_dev *adev, struct firmware *lib, u32 id);
323 int avs_hda_transfer_modules(struct avs_dev *adev, bool load,
324 struct avs_module_entry *mods, u32 num_mods);
325
326 int avs_icl_load_basefw(struct avs_dev *adev, struct firmware *fw);
327
328 /* Soc component members */
329
330 struct avs_soc_component {
331 struct snd_soc_component base;
332 struct avs_tplg *tplg;
333
334 struct list_head node;
335 };
336
337 #define to_avs_soc_component(comp) \
338 container_of(comp, struct avs_soc_component, base)
339
340 extern const struct snd_soc_dai_ops avs_dai_fe_ops;
341
342 int avs_soc_component_register(struct device *dev, const char *name,
343 const struct snd_soc_component_driver *drv,
344 struct snd_soc_dai_driver *cpu_dais, int num_cpu_dais);
345 int avs_dmic_platform_register(struct avs_dev *adev, const char *name);
346 int avs_i2s_platform_register(struct avs_dev *adev, const char *name, unsigned long port_mask,
347 unsigned long *tdms);
348 int avs_hda_platform_register(struct avs_dev *adev, const char *name);
349
350 int avs_register_all_boards(struct avs_dev *adev);
351 void avs_unregister_all_boards(struct avs_dev *adev);
352
353 /* Firmware tracing helpers */
354
355 #define avs_log_buffer_size(adev) \
356 ((adev)->fw_cfg.trace_log_bytes / (adev)->hw_cfg.dsp_cores)
357
358 #define avs_log_buffer_addr(adev, core) \
359 ({ \
360 s32 __offset = avs_dsp_op(adev, log_buffer_offset, core); \
361 (__offset < 0) ? NULL : \
362 (avs_sram_addr(adev, AVS_DEBUG_WINDOW) + __offset); \
363 })
364
avs_log_buffer_status_locked(struct avs_dev * adev,union avs_notify_msg * msg)365 static inline int avs_log_buffer_status_locked(struct avs_dev *adev, union avs_notify_msg *msg)
366 {
367 unsigned long flags;
368 int ret;
369
370 spin_lock_irqsave(&adev->trace_lock, flags);
371 ret = avs_dsp_op(adev, log_buffer_status, msg);
372 spin_unlock_irqrestore(&adev->trace_lock, flags);
373
374 return ret;
375 }
376
377 struct avs_apl_log_buffer_layout {
378 u32 read_ptr;
379 u32 write_ptr;
380 u8 buffer[];
381 } __packed;
382 static_assert(sizeof(struct avs_apl_log_buffer_layout) == 8);
383
384 #define avs_apl_log_payload_size(adev) \
385 (avs_log_buffer_size(adev) - sizeof(struct avs_apl_log_buffer_layout))
386
387 #define avs_apl_log_payload_addr(addr) \
388 (addr + sizeof(struct avs_apl_log_buffer_layout))
389
390 #ifdef CONFIG_DEBUG_FS
391 #define AVS_SET_ENABLE_LOGS_OP(name) \
392 .enable_logs = avs_##name##_enable_logs
393
394 bool avs_logging_fw(struct avs_dev *adev);
395 void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len);
396 void avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len);
397
398 int avs_probe_platform_register(struct avs_dev *adev, const char *name);
399
400 void avs_debugfs_init(struct avs_dev *adev);
401 void avs_debugfs_exit(struct avs_dev *adev);
402 #else
403 #define AVS_SET_ENABLE_LOGS_OP(name)
404
avs_logging_fw(struct avs_dev * adev)405 static inline bool avs_logging_fw(struct avs_dev *adev)
406 {
407 return false;
408 }
409
avs_dump_fw_log(struct avs_dev * adev,const void __iomem * src,unsigned int len)410 static inline void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len)
411 {
412 }
413
414 static inline void
avs_dump_fw_log_wakeup(struct avs_dev * adev,const void __iomem * src,unsigned int len)415 avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len)
416 {
417 }
418
avs_probe_platform_register(struct avs_dev * adev,const char * name)419 static inline int avs_probe_platform_register(struct avs_dev *adev, const char *name)
420 {
421 return 0;
422 }
423
avs_debugfs_init(struct avs_dev * adev)424 static inline void avs_debugfs_init(struct avs_dev *adev) { }
avs_debugfs_exit(struct avs_dev * adev)425 static inline void avs_debugfs_exit(struct avs_dev *adev) { }
426 #endif
427
428 /* Filesystems integration */
429
430 extern const struct attribute_group *avs_attr_groups[];
431
432 #endif /* __SOUND_SOC_INTEL_AVS_H */
433