1 /*
2  * Copyright 2018 Advanced Micro Devices, Inc.
3  *
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:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include <linux/slab.h>
27 
28 #include "dm_services.h"
29 
30 #include "include/logger_interface.h"
31 
32 #include "../dce110/irq_service_dce110.h"
33 
34 #include "dcn/dcn_2_1_0_offset.h"
35 #include "dcn/dcn_2_1_0_sh_mask.h"
36 #include "renoir_ip_offset.h"
37 
38 
39 #include "irq_service_dcn21.h"
40 
41 #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
42 
to_dal_irq_source_dcn21(struct irq_service * irq_service,uint32_t src_id,uint32_t ext_id)43 static enum dc_irq_source to_dal_irq_source_dcn21(struct irq_service *irq_service,
44 						  uint32_t src_id,
45 						  uint32_t ext_id)
46 {
47 	switch (src_id) {
48 	case DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP:
49 		return DC_IRQ_SOURCE_VBLANK1;
50 	case DCN_1_0__SRCID__DC_D2_OTG_VSTARTUP:
51 		return DC_IRQ_SOURCE_VBLANK2;
52 	case DCN_1_0__SRCID__DC_D3_OTG_VSTARTUP:
53 		return DC_IRQ_SOURCE_VBLANK3;
54 	case DCN_1_0__SRCID__DC_D4_OTG_VSTARTUP:
55 		return DC_IRQ_SOURCE_VBLANK4;
56 	case DCN_1_0__SRCID__DC_D5_OTG_VSTARTUP:
57 		return DC_IRQ_SOURCE_VBLANK5;
58 	case DCN_1_0__SRCID__DC_D6_OTG_VSTARTUP:
59 		return DC_IRQ_SOURCE_VBLANK6;
60 	case DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT:
61 		return DC_IRQ_SOURCE_DMCUB_OUTBOX;
62 	case DCN_1_0__SRCID__OTG1_VERTICAL_INTERRUPT0_CONTROL:
63 		return DC_IRQ_SOURCE_DC1_VLINE0;
64 	case DCN_1_0__SRCID__OTG2_VERTICAL_INTERRUPT0_CONTROL:
65 		return DC_IRQ_SOURCE_DC2_VLINE0;
66 	case DCN_1_0__SRCID__OTG3_VERTICAL_INTERRUPT0_CONTROL:
67 		return DC_IRQ_SOURCE_DC3_VLINE0;
68 	case DCN_1_0__SRCID__OTG4_VERTICAL_INTERRUPT0_CONTROL:
69 		return DC_IRQ_SOURCE_DC4_VLINE0;
70 	case DCN_1_0__SRCID__OTG5_VERTICAL_INTERRUPT0_CONTROL:
71 		return DC_IRQ_SOURCE_DC5_VLINE0;
72 	case DCN_1_0__SRCID__OTG6_VERTICAL_INTERRUPT0_CONTROL:
73 		return DC_IRQ_SOURCE_DC6_VLINE0;
74 	case DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT:
75 		return DC_IRQ_SOURCE_PFLIP1;
76 	case DCN_1_0__SRCID__HUBP1_FLIP_INTERRUPT:
77 		return DC_IRQ_SOURCE_PFLIP2;
78 	case DCN_1_0__SRCID__HUBP2_FLIP_INTERRUPT:
79 		return DC_IRQ_SOURCE_PFLIP3;
80 	case DCN_1_0__SRCID__HUBP3_FLIP_INTERRUPT:
81 		return DC_IRQ_SOURCE_PFLIP4;
82 	case DCN_1_0__SRCID__HUBP4_FLIP_INTERRUPT:
83 		return DC_IRQ_SOURCE_PFLIP5;
84 	case DCN_1_0__SRCID__HUBP5_FLIP_INTERRUPT:
85 		return DC_IRQ_SOURCE_PFLIP6;
86 	case DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
87 		return DC_IRQ_SOURCE_VUPDATE1;
88 	case DCN_1_0__SRCID__OTG1_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
89 		return DC_IRQ_SOURCE_VUPDATE2;
90 	case DCN_1_0__SRCID__OTG2_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
91 		return DC_IRQ_SOURCE_VUPDATE3;
92 	case DCN_1_0__SRCID__OTG3_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
93 		return DC_IRQ_SOURCE_VUPDATE4;
94 	case DCN_1_0__SRCID__OTG4_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
95 		return DC_IRQ_SOURCE_VUPDATE5;
96 	case DCN_1_0__SRCID__OTG5_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
97 		return DC_IRQ_SOURCE_VUPDATE6;
98 
99 	case DCN_1_0__SRCID__DC_HPD1_INT:
100 		/* generic src_id for all HPD and HPDRX interrupts */
101 		switch (ext_id) {
102 		case DCN_1_0__CTXID__DC_HPD1_INT:
103 			return DC_IRQ_SOURCE_HPD1;
104 		case DCN_1_0__CTXID__DC_HPD2_INT:
105 			return DC_IRQ_SOURCE_HPD2;
106 		case DCN_1_0__CTXID__DC_HPD3_INT:
107 			return DC_IRQ_SOURCE_HPD3;
108 		case DCN_1_0__CTXID__DC_HPD4_INT:
109 			return DC_IRQ_SOURCE_HPD4;
110 		case DCN_1_0__CTXID__DC_HPD5_INT:
111 			return DC_IRQ_SOURCE_HPD5;
112 		case DCN_1_0__CTXID__DC_HPD6_INT:
113 			return DC_IRQ_SOURCE_HPD6;
114 		case DCN_1_0__CTXID__DC_HPD1_RX_INT:
115 			return DC_IRQ_SOURCE_HPD1RX;
116 		case DCN_1_0__CTXID__DC_HPD2_RX_INT:
117 			return DC_IRQ_SOURCE_HPD2RX;
118 		case DCN_1_0__CTXID__DC_HPD3_RX_INT:
119 			return DC_IRQ_SOURCE_HPD3RX;
120 		case DCN_1_0__CTXID__DC_HPD4_RX_INT:
121 			return DC_IRQ_SOURCE_HPD4RX;
122 		case DCN_1_0__CTXID__DC_HPD5_RX_INT:
123 			return DC_IRQ_SOURCE_HPD5RX;
124 		case DCN_1_0__CTXID__DC_HPD6_RX_INT:
125 			return DC_IRQ_SOURCE_HPD6RX;
126 		default:
127 			return DC_IRQ_SOURCE_INVALID;
128 		}
129 		break;
130 
131 	default:
132 		break;
133 	}
134 	return DC_IRQ_SOURCE_INVALID;
135 }
136 
hpd_ack(struct irq_service * irq_service,const struct irq_source_info * info)137 static bool hpd_ack(
138 	struct irq_service *irq_service,
139 	const struct irq_source_info *info)
140 {
141 	uint32_t addr = info->status_reg;
142 	uint32_t value = dm_read_reg(irq_service->ctx, addr);
143 	uint32_t current_status =
144 		get_reg_field_value(
145 			value,
146 			HPD0_DC_HPD_INT_STATUS,
147 			DC_HPD_SENSE_DELAYED);
148 
149 	dal_irq_service_ack_generic(irq_service, info);
150 
151 	value = dm_read_reg(irq_service->ctx, info->enable_reg);
152 
153 	set_reg_field_value(
154 		value,
155 		current_status ? 0 : 1,
156 		HPD0_DC_HPD_INT_CONTROL,
157 		DC_HPD_INT_POLARITY);
158 
159 	dm_write_reg(irq_service->ctx, info->enable_reg, value);
160 
161 	return true;
162 }
163 
164 static const struct irq_source_info_funcs hpd_irq_info_funcs = {
165 	.set = NULL,
166 	.ack = hpd_ack
167 };
168 
169 static const struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
170 	.set = NULL,
171 	.ack = NULL
172 };
173 
174 static const struct irq_source_info_funcs pflip_irq_info_funcs = {
175 	.set = NULL,
176 	.ack = NULL
177 };
178 
179 static const struct irq_source_info_funcs vblank_irq_info_funcs = {
180 	.set = NULL,
181 	.ack = NULL
182 };
183 
184 static const struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = {
185 	.set = NULL,
186 	.ack = NULL
187 };
188 
189 static const struct irq_source_info_funcs dmub_outbox_irq_info_funcs = {
190 	.set = NULL,
191 	.ack = NULL
192 };
193 
194 static const struct irq_source_info_funcs vline0_irq_info_funcs = {
195 	.set = NULL,
196 	.ack = NULL
197 };
198 
199 #undef BASE_INNER
200 #define BASE_INNER(seg) DMU_BASE__INST0_SEG ## seg
201 
202 /* compile time expand base address. */
203 #define BASE(seg) \
204 	BASE_INNER(seg)
205 
206 
207 #define SRI(reg_name, block, id)\
208 	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
209 			mm ## block ## id ## _ ## reg_name
210 
211 #define SRI_DMUB(reg_name)\
212 	BASE(mm ## reg_name ## _BASE_IDX) + \
213 			mm ## reg_name
214 
215 #define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\
216 	.enable_reg = SRI(reg1, block, reg_num),\
217 	.enable_mask = \
218 		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
219 	.enable_value = {\
220 		block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
221 		~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \
222 	},\
223 	.ack_reg = SRI(reg2, block, reg_num),\
224 	.ack_mask = \
225 		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\
226 	.ack_value = \
227 		block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \
228 
229 #define IRQ_REG_ENTRY_DMUB(reg1, mask1, reg2, mask2)\
230 	.enable_reg = SRI_DMUB(reg1),\
231 	.enable_mask = \
232 		reg1 ## __ ## mask1 ## _MASK,\
233 	.enable_value = {\
234 		reg1 ## __ ## mask1 ## _MASK,\
235 		~reg1 ## __ ## mask1 ## _MASK \
236 	},\
237 	.ack_reg = SRI_DMUB(reg2),\
238 	.ack_mask = \
239 		reg2 ## __ ## mask2 ## _MASK,\
240 	.ack_value = \
241 		reg2 ## __ ## mask2 ## _MASK \
242 
243 #define hpd_int_entry(reg_num)\
244 	[DC_IRQ_SOURCE_HPD1 + reg_num] = {\
245 		IRQ_REG_ENTRY(HPD, reg_num,\
246 			DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\
247 			DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\
248 		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
249 		.funcs = &hpd_irq_info_funcs\
250 	}
251 
252 #define hpd_rx_int_entry(reg_num)\
253 	[DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
254 		IRQ_REG_ENTRY(HPD, reg_num,\
255 			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\
256 			DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\
257 		.status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
258 		.funcs = &hpd_rx_irq_info_funcs\
259 	}
260 #define pflip_int_entry(reg_num)\
261 	[DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
262 		IRQ_REG_ENTRY(HUBPREQ, reg_num,\
263 			DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_INT_MASK,\
264 			DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_CLEAR),\
265 		.funcs = &pflip_irq_info_funcs\
266 	}
267 
268 /* vupdate_no_lock_int_entry maps to DC_IRQ_SOURCE_VUPDATEx, to match semantic
269  * of DCE's DC_IRQ_SOURCE_VUPDATEx.
270  */
271 #define vupdate_no_lock_int_entry(reg_num)\
272 	[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
273 		IRQ_REG_ENTRY(OTG, reg_num,\
274 			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_INT_EN,\
275 			OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_EVENT_CLEAR),\
276 		.funcs = &vupdate_no_lock_irq_info_funcs\
277 	}
278 
279 #define vblank_int_entry(reg_num)\
280 	[DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
281 		IRQ_REG_ENTRY(OTG, reg_num,\
282 			OTG_GLOBAL_SYNC_STATUS, VSTARTUP_INT_EN,\
283 			OTG_GLOBAL_SYNC_STATUS, VSTARTUP_EVENT_CLEAR),\
284 		.funcs = &vblank_irq_info_funcs\
285 	}
286 
287 #define vline0_int_entry(reg_num)\
288 	[DC_IRQ_SOURCE_DC1_VLINE0 + reg_num] = {\
289 		IRQ_REG_ENTRY(OTG, reg_num,\
290 			OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_INT_ENABLE,\
291 			OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_CLEAR),\
292 		.funcs = &vline0_irq_info_funcs\
293 	}
294 
295 #define dmub_outbox_int_entry()\
296 	[DC_IRQ_SOURCE_DMCUB_OUTBOX] = {\
297 		IRQ_REG_ENTRY_DMUB(DMCUB_INTERRUPT_ENABLE, DMCUB_OUTBOX1_READY_INT_EN,\
298 			DMCUB_INTERRUPT_ACK, DMCUB_OUTBOX1_READY_INT_ACK),\
299 		.funcs = &dmub_outbox_irq_info_funcs\
300 	}
301 
302 #define dummy_irq_entry() \
303 	{\
304 		.funcs = &dummy_irq_info_funcs\
305 	}
306 
307 #define i2c_int_entry(reg_num) \
308 	[DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
309 
310 #define dp_sink_int_entry(reg_num) \
311 	[DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
312 
313 #define gpio_pad_int_entry(reg_num) \
314 	[DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
315 
316 #define dc_underflow_int_entry(reg_num) \
317 	[DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
318 
319 static const struct irq_source_info_funcs dummy_irq_info_funcs = {
320 	.set = dal_irq_service_dummy_set,
321 	.ack = dal_irq_service_dummy_ack
322 };
323 
324 static const struct irq_source_info
325 irq_source_info_dcn21[DAL_IRQ_SOURCES_NUMBER] = {
326 	[DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
327 	hpd_int_entry(0),
328 	hpd_int_entry(1),
329 	hpd_int_entry(2),
330 	hpd_int_entry(3),
331 	hpd_int_entry(4),
332 	hpd_rx_int_entry(0),
333 	hpd_rx_int_entry(1),
334 	hpd_rx_int_entry(2),
335 	hpd_rx_int_entry(3),
336 	hpd_rx_int_entry(4),
337 	i2c_int_entry(1),
338 	i2c_int_entry(2),
339 	i2c_int_entry(3),
340 	i2c_int_entry(4),
341 	i2c_int_entry(5),
342 	i2c_int_entry(6),
343 	dp_sink_int_entry(1),
344 	dp_sink_int_entry(2),
345 	dp_sink_int_entry(3),
346 	dp_sink_int_entry(4),
347 	dp_sink_int_entry(5),
348 	dp_sink_int_entry(6),
349 	[DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
350 	pflip_int_entry(0),
351 	pflip_int_entry(1),
352 	pflip_int_entry(2),
353 	pflip_int_entry(3),
354 	[DC_IRQ_SOURCE_PFLIP5] = dummy_irq_entry(),
355 	[DC_IRQ_SOURCE_PFLIP6] = dummy_irq_entry(),
356 	[DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
357 	gpio_pad_int_entry(0),
358 	gpio_pad_int_entry(1),
359 	gpio_pad_int_entry(2),
360 	gpio_pad_int_entry(3),
361 	gpio_pad_int_entry(4),
362 	gpio_pad_int_entry(5),
363 	gpio_pad_int_entry(6),
364 	gpio_pad_int_entry(7),
365 	gpio_pad_int_entry(8),
366 	gpio_pad_int_entry(9),
367 	gpio_pad_int_entry(10),
368 	gpio_pad_int_entry(11),
369 	gpio_pad_int_entry(12),
370 	gpio_pad_int_entry(13),
371 	gpio_pad_int_entry(14),
372 	gpio_pad_int_entry(15),
373 	gpio_pad_int_entry(16),
374 	gpio_pad_int_entry(17),
375 	gpio_pad_int_entry(18),
376 	gpio_pad_int_entry(19),
377 	gpio_pad_int_entry(20),
378 	gpio_pad_int_entry(21),
379 	gpio_pad_int_entry(22),
380 	gpio_pad_int_entry(23),
381 	gpio_pad_int_entry(24),
382 	gpio_pad_int_entry(25),
383 	gpio_pad_int_entry(26),
384 	gpio_pad_int_entry(27),
385 	gpio_pad_int_entry(28),
386 	gpio_pad_int_entry(29),
387 	gpio_pad_int_entry(30),
388 	dc_underflow_int_entry(1),
389 	dc_underflow_int_entry(2),
390 	dc_underflow_int_entry(3),
391 	dc_underflow_int_entry(4),
392 	dc_underflow_int_entry(5),
393 	dc_underflow_int_entry(6),
394 	[DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
395 	[DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
396 	vupdate_no_lock_int_entry(0),
397 	vupdate_no_lock_int_entry(1),
398 	vupdate_no_lock_int_entry(2),
399 	vupdate_no_lock_int_entry(3),
400 	vupdate_no_lock_int_entry(4),
401 	vupdate_no_lock_int_entry(5),
402 	vblank_int_entry(0),
403 	vblank_int_entry(1),
404 	vblank_int_entry(2),
405 	vblank_int_entry(3),
406 	vblank_int_entry(4),
407 	vblank_int_entry(5),
408 	vline0_int_entry(0),
409 	vline0_int_entry(1),
410 	vline0_int_entry(2),
411 	vline0_int_entry(3),
412 	vline0_int_entry(4),
413 	vline0_int_entry(5),
414 	dmub_outbox_int_entry(),
415 };
416 
417 static const struct irq_service_funcs irq_service_funcs_dcn21 = {
418 		.to_dal_irq_source = to_dal_irq_source_dcn21
419 };
420 
dcn21_irq_construct(struct irq_service * irq_service,struct irq_service_init_data * init_data)421 static void dcn21_irq_construct(
422 	struct irq_service *irq_service,
423 	struct irq_service_init_data *init_data)
424 {
425 	dal_irq_service_construct(irq_service, init_data);
426 
427 	irq_service->info = irq_source_info_dcn21;
428 	irq_service->funcs = &irq_service_funcs_dcn21;
429 }
430 
dal_irq_service_dcn21_create(struct irq_service_init_data * init_data)431 struct irq_service *dal_irq_service_dcn21_create(
432 	struct irq_service_init_data *init_data)
433 {
434 	struct irq_service *irq_service = kzalloc(sizeof(*irq_service),
435 						  GFP_KERNEL);
436 
437 	if (!irq_service)
438 		return NULL;
439 
440 	dcn21_irq_construct(irq_service, init_data);
441 	return irq_service;
442 }
443