1/*
2 * Copyright 2022 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 "dm_services.h"
27#include "include/logger_interface.h"
28#include "../dce110/irq_service_dce110.h"
29
30#include "dcn/dcn_3_2_0_offset.h"
31#include "dcn/dcn_3_2_0_sh_mask.h"
32
33#include "irq_service_dcn32.h"
34
35#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h"
36
37#define DCN_BASE__INST0_SEG2 0x000034C0
38
39static enum dc_irq_source to_dal_irq_source_dcn32(
40 struct irq_service *irq_service,
41 uint32_t src_id,
42 uint32_t ext_id)
43{
44 switch (src_id) {
45 case DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP:
46 return DC_IRQ_SOURCE_VBLANK1;
47 case DCN_1_0__SRCID__DC_D2_OTG_VSTARTUP:
48 return DC_IRQ_SOURCE_VBLANK2;
49 case DCN_1_0__SRCID__DC_D3_OTG_VSTARTUP:
50 return DC_IRQ_SOURCE_VBLANK3;
51 case DCN_1_0__SRCID__DC_D4_OTG_VSTARTUP:
52 return DC_IRQ_SOURCE_VBLANK4;
53 case DCN_1_0__SRCID__DC_D5_OTG_VSTARTUP:
54 return DC_IRQ_SOURCE_VBLANK5;
55 case DCN_1_0__SRCID__DC_D6_OTG_VSTARTUP:
56 return DC_IRQ_SOURCE_VBLANK6;
57 case DCN_1_0__SRCID__OTG1_VERTICAL_INTERRUPT0_CONTROL:
58 return DC_IRQ_SOURCE_DC1_VLINE0;
59 case DCN_1_0__SRCID__OTG2_VERTICAL_INTERRUPT0_CONTROL:
60 return DC_IRQ_SOURCE_DC2_VLINE0;
61 case DCN_1_0__SRCID__OTG3_VERTICAL_INTERRUPT0_CONTROL:
62 return DC_IRQ_SOURCE_DC3_VLINE0;
63 case DCN_1_0__SRCID__OTG4_VERTICAL_INTERRUPT0_CONTROL:
64 return DC_IRQ_SOURCE_DC4_VLINE0;
65 case DCN_1_0__SRCID__OTG5_VERTICAL_INTERRUPT0_CONTROL:
66 return DC_IRQ_SOURCE_DC5_VLINE0;
67 case DCN_1_0__SRCID__OTG6_VERTICAL_INTERRUPT0_CONTROL:
68 return DC_IRQ_SOURCE_DC6_VLINE0;
69 case DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT:
70 return DC_IRQ_SOURCE_PFLIP1;
71 case DCN_1_0__SRCID__HUBP1_FLIP_INTERRUPT:
72 return DC_IRQ_SOURCE_PFLIP2;
73 case DCN_1_0__SRCID__HUBP2_FLIP_INTERRUPT:
74 return DC_IRQ_SOURCE_PFLIP3;
75 case DCN_1_0__SRCID__HUBP3_FLIP_INTERRUPT:
76 return DC_IRQ_SOURCE_PFLIP4;
77 case DCN_1_0__SRCID__HUBP4_FLIP_INTERRUPT:
78 return DC_IRQ_SOURCE_PFLIP5;
79 case DCN_1_0__SRCID__HUBP5_FLIP_INTERRUPT:
80 return DC_IRQ_SOURCE_PFLIP6;
81 case DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
82 return DC_IRQ_SOURCE_VUPDATE1;
83 case DCN_1_0__SRCID__OTG1_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
84 return DC_IRQ_SOURCE_VUPDATE2;
85 case DCN_1_0__SRCID__OTG2_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
86 return DC_IRQ_SOURCE_VUPDATE3;
87 case DCN_1_0__SRCID__OTG3_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
88 return DC_IRQ_SOURCE_VUPDATE4;
89 case DCN_1_0__SRCID__OTG4_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
90 return DC_IRQ_SOURCE_VUPDATE5;
91 case DCN_1_0__SRCID__OTG5_IHC_V_UPDATE_NO_LOCK_INTERRUPT:
92 return DC_IRQ_SOURCE_VUPDATE6;
93 case DCN_1_0__SRCID__DMCUB_OUTBOX_LOW_PRIORITY_READY_INT:
94 return DC_IRQ_SOURCE_DMCUB_OUTBOX;
95 case DCN_1_0__SRCID__DC_HPD1_INT:
96 /* generic src_id for all HPD and HPDRX interrupts */
97 switch (ext_id) {
98 case DCN_1_0__CTXID__DC_HPD1_INT:
99 return DC_IRQ_SOURCE_HPD1;
100 case DCN_1_0__CTXID__DC_HPD2_INT:
101 return DC_IRQ_SOURCE_HPD2;
102 case DCN_1_0__CTXID__DC_HPD3_INT:
103 return DC_IRQ_SOURCE_HPD3;
104 case DCN_1_0__CTXID__DC_HPD4_INT:
105 return DC_IRQ_SOURCE_HPD4;
106 case DCN_1_0__CTXID__DC_HPD5_INT:
107 return DC_IRQ_SOURCE_HPD5;
108 case DCN_1_0__CTXID__DC_HPD6_INT:
109 return DC_IRQ_SOURCE_HPD6;
110 case DCN_1_0__CTXID__DC_HPD1_RX_INT:
111 return DC_IRQ_SOURCE_HPD1RX;
112 case DCN_1_0__CTXID__DC_HPD2_RX_INT:
113 return DC_IRQ_SOURCE_HPD2RX;
114 case DCN_1_0__CTXID__DC_HPD3_RX_INT:
115 return DC_IRQ_SOURCE_HPD3RX;
116 case DCN_1_0__CTXID__DC_HPD4_RX_INT:
117 return DC_IRQ_SOURCE_HPD4RX;
118 case DCN_1_0__CTXID__DC_HPD5_RX_INT:
119 return DC_IRQ_SOURCE_HPD5RX;
120 case DCN_1_0__CTXID__DC_HPD6_RX_INT:
121 return DC_IRQ_SOURCE_HPD6RX;
122 default:
123 return DC_IRQ_SOURCE_INVALID;
124 }
125 break;
126
127 default:
128 return DC_IRQ_SOURCE_INVALID;
129 }
130}
131
132static bool hpd_ack(
133 struct irq_service *irq_service,
134 const struct irq_source_info *info)
135{
136 uint32_t addr = info->status_reg;
137 uint32_t value = dm_read_reg(irq_service->ctx, addr);
138 uint32_t current_status =
139 get_reg_field_value(
140 value,
141 HPD0_DC_HPD_INT_STATUS,
142 DC_HPD_SENSE_DELAYED);
143
144 dal_irq_service_ack_generic(irq_service, info);
145
146 value = dm_read_reg(irq_service->ctx, info->enable_reg);
147
148 set_reg_field_value(
149 value,
150 current_status ? 0 : 1,
151 HPD0_DC_HPD_INT_CONTROL,
152 DC_HPD_INT_POLARITY);
153
154 dm_write_reg(irq_service->ctx, info->enable_reg, value);
155
156 return true;
157}
158
159static struct irq_source_info_funcs hpd_irq_info_funcs = {
160 .set = NULL,
161 .ack = hpd_ack
162};
163
164static struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
165 .set = NULL,
166 .ack = NULL
167};
168
169static struct irq_source_info_funcs pflip_irq_info_funcs = {
170 .set = NULL,
171 .ack = NULL
172};
173
174static struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = {
175 .set = NULL,
176 .ack = NULL
177};
178
179static struct irq_source_info_funcs vblank_irq_info_funcs = {
180 .set = NULL,
181 .ack = NULL
182};
183
184static struct irq_source_info_funcs outbox_irq_info_funcs = {
185 .set = NULL,
186 .ack = NULL
187};
188
189static struct irq_source_info_funcs vline0_irq_info_funcs = {
190 .set = NULL,
191 .ack = NULL
192};
193
194#undef BASE_INNER
195#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
196
197/* compile time expand base address. */
198#define BASE(seg) \
199 BASE_INNER(seg)
200
201#define SRI(reg_name, block, id)\
202 BASE(reg ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
203 reg ## block ## id ## _ ## reg_name
204
205#define SRI_DMUB(reg_name)\
206 BASE(reg ## reg_name ## _BASE_IDX) + \
207 reg ## reg_name
208
209#define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\
210 .enable_reg = SRI(reg1, block, reg_num),\
211 .enable_mask = \
212 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
213 .enable_value = {\
214 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
215 ~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \
216 },\
217 .ack_reg = SRI(reg2, block, reg_num),\
218 .ack_mask = \
219 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\
220 .ack_value = \
221 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \
222
223#define IRQ_REG_ENTRY_DMUB(reg1, mask1, reg2, mask2)\
224 .enable_reg = SRI_DMUB(reg1),\
225 .enable_mask = \
226 reg1 ## __ ## mask1 ## _MASK,\
227 .enable_value = {\
228 reg1 ## __ ## mask1 ## _MASK,\
229 ~reg1 ## __ ## mask1 ## _MASK \
230 },\
231 .ack_reg = SRI_DMUB(reg2),\
232 .ack_mask = \
233 reg2 ## __ ## mask2 ## _MASK,\
234 .ack_value = \
235 reg2 ## __ ## mask2 ## _MASK \
236
237#define hpd_int_entry(reg_num)\
238 [DC_IRQ_SOURCE_HPD1 + reg_num] = {\
239 IRQ_REG_ENTRY(HPD, reg_num,\
240 DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\
241 DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\
242 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
243 .funcs = &hpd_irq_info_funcs\
244 }
245
246#define hpd_rx_int_entry(reg_num)\
247 [DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
248 IRQ_REG_ENTRY(HPD, reg_num,\
249 DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\
250 DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\
251 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
252 .funcs = &hpd_rx_irq_info_funcs\
253 }
254#define pflip_int_entry(reg_num)\
255 [DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
256 IRQ_REG_ENTRY(HUBPREQ, reg_num,\
257 DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_INT_MASK,\
258 DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_CLEAR),\
259 .funcs = &pflip_irq_info_funcs\
260 }
261
262/* vupdate_no_lock_int_entry maps to DC_IRQ_SOURCE_VUPDATEx, to match semantic
263 * of DCE's DC_IRQ_SOURCE_VUPDATEx.
264 */
265#define vupdate_no_lock_int_entry(reg_num)\
266 [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
267 IRQ_REG_ENTRY(OTG, reg_num,\
268 OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_INT_EN,\
269 OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_EVENT_CLEAR),\
270 .funcs = &vupdate_no_lock_irq_info_funcs\
271 }
272
273#define vblank_int_entry(reg_num)\
274 [DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
275 IRQ_REG_ENTRY(OTG, reg_num,\
276 OTG_GLOBAL_SYNC_STATUS, VSTARTUP_INT_EN,\
277 OTG_GLOBAL_SYNC_STATUS, VSTARTUP_EVENT_CLEAR),\
278 .funcs = &vblank_irq_info_funcs\
279}
280
281#define vline0_int_entry(reg_num)\
282 [DC_IRQ_SOURCE_DC1_VLINE0 + reg_num] = {\
283 IRQ_REG_ENTRY(OTG, reg_num,\
284 OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_INT_ENABLE,\
285 OTG_VERTICAL_INTERRUPT0_CONTROL, OTG_VERTICAL_INTERRUPT0_CLEAR),\
286 .funcs = &vline0_irq_info_funcs\
287 }
288#define dmub_outbox_int_entry()\
289 [DC_IRQ_SOURCE_DMCUB_OUTBOX] = {\
290 IRQ_REG_ENTRY_DMUB(\
291 DMCUB_INTERRUPT_ENABLE, DMCUB_OUTBOX1_READY_INT_EN,\
292 DMCUB_INTERRUPT_ACK, DMCUB_OUTBOX1_READY_INT_ACK),\
293 .funcs = &outbox_irq_info_funcs\
294 }
295
296#define dummy_irq_entry() \
297 {\
298 .funcs = &dummy_irq_info_funcs\
299 }
300
301#define i2c_int_entry(reg_num) \
302 [DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
303
304#define dp_sink_int_entry(reg_num) \
305 [DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
306
307#define gpio_pad_int_entry(reg_num) \
308 [DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
309
310#define dc_underflow_int_entry(reg_num) \
311 [DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
312
313static struct irq_source_info_funcs dummy_irq_info_funcs = {
314 .set = dal_irq_service_dummy_set,
315 .ack = dal_irq_service_dummy_ack
316};
317
318static const struct irq_source_info
319irq_source_info_dcn32[DAL_IRQ_SOURCES_NUMBER] = {
320 [DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
321 hpd_int_entry(0),
322 hpd_int_entry(1),
323 hpd_int_entry(2),
324 hpd_int_entry(3),
325 hpd_int_entry(4),
326 hpd_rx_int_entry(0),
327 hpd_rx_int_entry(1),
328 hpd_rx_int_entry(2),
329 hpd_rx_int_entry(3),
330 hpd_rx_int_entry(4),
331 i2c_int_entry(1),
332 i2c_int_entry(2),
333 i2c_int_entry(3),
334 i2c_int_entry(4),
335 i2c_int_entry(5),
336 i2c_int_entry(6),
337 dp_sink_int_entry(1),
338 dp_sink_int_entry(2),
339 dp_sink_int_entry(3),
340 dp_sink_int_entry(4),
341 dp_sink_int_entry(5),
342 dp_sink_int_entry(6),
343 [DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
344 pflip_int_entry(0),
345 pflip_int_entry(1),
346 pflip_int_entry(2),
347 pflip_int_entry(3),
348 [DC_IRQ_SOURCE_PFLIP5] = dummy_irq_entry(),
349 [DC_IRQ_SOURCE_PFLIP6] = dummy_irq_entry(),
350 [DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
351 gpio_pad_int_entry(0),
352 gpio_pad_int_entry(1),
353 gpio_pad_int_entry(2),
354 gpio_pad_int_entry(3),
355 gpio_pad_int_entry(4),
356 gpio_pad_int_entry(5),
357 gpio_pad_int_entry(6),
358 gpio_pad_int_entry(7),
359 gpio_pad_int_entry(8),
360 gpio_pad_int_entry(9),
361 gpio_pad_int_entry(10),
362 gpio_pad_int_entry(11),
363 gpio_pad_int_entry(12),
364 gpio_pad_int_entry(13),
365 gpio_pad_int_entry(14),
366 gpio_pad_int_entry(15),
367 gpio_pad_int_entry(16),
368 gpio_pad_int_entry(17),
369 gpio_pad_int_entry(18),
370 gpio_pad_int_entry(19),
371 gpio_pad_int_entry(20),
372 gpio_pad_int_entry(21),
373 gpio_pad_int_entry(22),
374 gpio_pad_int_entry(23),
375 gpio_pad_int_entry(24),
376 gpio_pad_int_entry(25),
377 gpio_pad_int_entry(26),
378 gpio_pad_int_entry(27),
379 gpio_pad_int_entry(28),
380 gpio_pad_int_entry(29),
381 gpio_pad_int_entry(30),
382 dc_underflow_int_entry(1),
383 dc_underflow_int_entry(2),
384 dc_underflow_int_entry(3),
385 dc_underflow_int_entry(4),
386 dc_underflow_int_entry(5),
387 dc_underflow_int_entry(6),
388 [DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
389 [DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
390 vupdate_no_lock_int_entry(0),
391 vupdate_no_lock_int_entry(1),
392 vupdate_no_lock_int_entry(2),
393 vupdate_no_lock_int_entry(3),
394 vblank_int_entry(0),
395 vblank_int_entry(1),
396 vblank_int_entry(2),
397 vblank_int_entry(3),
398 vline0_int_entry(0),
399 vline0_int_entry(1),
400 vline0_int_entry(2),
401 vline0_int_entry(3),
402 [DC_IRQ_SOURCE_DC5_VLINE1] = dummy_irq_entry(),
403 [DC_IRQ_SOURCE_DC6_VLINE1] = dummy_irq_entry(),
404 dmub_outbox_int_entry(),
405};
406
407static const struct irq_service_funcs irq_service_funcs_dcn32 = {
408 .to_dal_irq_source = to_dal_irq_source_dcn32
409};
410
411static void dcn32_irq_construct(
412 struct irq_service *irq_service,
413 struct irq_service_init_data *init_data)
414{
415 dal_irq_service_construct(irq_service, init_data);
416
417 irq_service->info = irq_source_info_dcn32;
418 irq_service->funcs = &irq_service_funcs_dcn32;
419}
420
421struct irq_service *dal_irq_service_dcn32_create(
422 struct irq_service_init_data *init_data)
423{
424 struct irq_service *irq_service = kzalloc(size: sizeof(*irq_service),
425 GFP_KERNEL);
426
427 if (!irq_service)
428 return NULL;
429
430 dcn32_irq_construct(irq_service, init_data);
431 return irq_service;
432}
433

source code of linux/drivers/gpu/drm/amd/display/dc/irq/dcn32/irq_service_dcn32.c