2 * Copyright 2015 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
26 #include <linux/irqdomain.h>
27 #include <linux/pci.h>
28 #include <linux/pm_domain.h>
29 #include <linux/platform_device.h>
30 #include <sound/designware_i2s.h>
31 #include <sound/pcm.h>
35 #include "amdgpu_acp.h"
37 #include "acp_gfx_if.h"
39 #define ACP_TILE_ON_MASK 0x03
40 #define ACP_TILE_OFF_MASK 0x02
41 #define ACP_TILE_ON_RETAIN_REG_MASK 0x1f
42 #define ACP_TILE_OFF_RETAIN_REG_MASK 0x20
44 #define ACP_TILE_P1_MASK 0x3e
45 #define ACP_TILE_P2_MASK 0x3d
46 #define ACP_TILE_DSP0_MASK 0x3b
47 #define ACP_TILE_DSP1_MASK 0x37
49 #define ACP_TILE_DSP2_MASK 0x2f
51 #define ACP_DMA_REGS_END 0x146c0
52 #define ACP_I2S_PLAY_REGS_START 0x14840
53 #define ACP_I2S_PLAY_REGS_END 0x148b4
54 #define ACP_I2S_CAP_REGS_START 0x148b8
55 #define ACP_I2S_CAP_REGS_END 0x1496c
57 #define ACP_I2S_COMP1_CAP_REG_OFFSET 0xac
58 #define ACP_I2S_COMP2_CAP_REG_OFFSET 0xa8
59 #define ACP_I2S_COMP1_PLAY_REG_OFFSET 0x6c
60 #define ACP_I2S_COMP2_PLAY_REG_OFFSET 0x68
61 #define ACP_BT_PLAY_REGS_START 0x14970
62 #define ACP_BT_PLAY_REGS_END 0x14a24
63 #define ACP_BT_COMP1_REG_OFFSET 0xac
64 #define ACP_BT_COMP2_REG_OFFSET 0xa8
66 #define mmACP_PGFSM_RETAIN_REG 0x51c9
67 #define mmACP_PGFSM_CONFIG_REG 0x51ca
68 #define mmACP_PGFSM_READ_REG_0 0x51cc
70 #define mmACP_MEM_SHUT_DOWN_REQ_LO 0x51f8
71 #define mmACP_MEM_SHUT_DOWN_REQ_HI 0x51f9
72 #define mmACP_MEM_SHUT_DOWN_STS_LO 0x51fa
73 #define mmACP_MEM_SHUT_DOWN_STS_HI 0x51fb
75 #define mmACP_CONTROL 0x5131
76 #define mmACP_STATUS 0x5133
77 #define mmACP_SOFT_RESET 0x5134
78 #define ACP_CONTROL__ClkEn_MASK 0x1
79 #define ACP_SOFT_RESET__SoftResetAud_MASK 0x100
80 #define ACP_SOFT_RESET__SoftResetAudDone_MASK 0x1000000
81 #define ACP_CLOCK_EN_TIME_OUT_VALUE 0x000000FF
82 #define ACP_SOFT_RESET_DONE_TIME_OUT_VALUE 0x000000FF
84 #define ACP_TIMEOUT_LOOP 0x000000FF
86 #define ACP_SRC_ID 162
96 static int acp_sw_init(void *handle)
98 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
100 adev->acp.parent = adev->dev;
102 adev->acp.cgs_device =
103 amdgpu_cgs_create_device(adev);
104 if (!adev->acp.cgs_device)
110 static int acp_sw_fini(void *handle)
112 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
114 if (adev->acp.cgs_device)
115 amdgpu_cgs_destroy_device(adev->acp.cgs_device);
120 struct acp_pm_domain {
122 struct generic_pm_domain gpd;
125 static int acp_poweroff(struct generic_pm_domain *genpd)
127 struct acp_pm_domain *apd;
128 struct amdgpu_device *adev;
130 apd = container_of(genpd, struct acp_pm_domain, gpd);
133 /* call smu to POWER GATE ACP block
135 * 1. turn off the acp clock
136 * 2. power off the acp tiles
137 * 3. check and enter ulv state
139 if (adev->powerplay.pp_funcs &&
140 adev->powerplay.pp_funcs->set_powergating_by_smu)
141 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
146 static int acp_poweron(struct generic_pm_domain *genpd)
148 struct acp_pm_domain *apd;
149 struct amdgpu_device *adev;
151 apd = container_of(genpd, struct acp_pm_domain, gpd);
154 /* call smu to UNGATE ACP block
157 * 2. turn on acp clock
158 * 3. power on acp tiles
160 if (adev->powerplay.pp_funcs->set_powergating_by_smu)
161 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
166 static struct device *get_mfd_cell_dev(const char *device_name, int r)
168 char auto_dev_name[25];
171 snprintf(auto_dev_name, sizeof(auto_dev_name),
172 "%s.%d.auto", device_name, r);
173 dev = bus_find_device_by_name(&platform_bus_type, NULL, auto_dev_name);
174 dev_info(dev, "device %s added to pm domain\n", auto_dev_name);
180 * acp_hw_init - start and test ACP block
182 * @adev: amdgpu_device pointer
185 static int acp_hw_init(void *handle)
192 struct i2s_platform_data *i2s_pdata;
194 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
196 const struct amdgpu_ip_block *ip_block =
197 amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_ACP);
202 r = amd_acp_hw_init(adev->acp.cgs_device,
203 ip_block->version->major, ip_block->version->minor);
204 /* -ENODEV means board uses AZ rather than ACP */
206 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
212 if (adev->rmmio_size == 0 || adev->rmmio_size < 0x5289)
215 acp_base = adev->rmmio_base;
218 adev->acp.acp_genpd = kzalloc(sizeof(struct acp_pm_domain), GFP_KERNEL);
219 if (adev->acp.acp_genpd == NULL)
222 adev->acp.acp_genpd->gpd.name = "ACP_AUDIO";
223 adev->acp.acp_genpd->gpd.power_off = acp_poweroff;
224 adev->acp.acp_genpd->gpd.power_on = acp_poweron;
227 adev->acp.acp_genpd->adev = adev;
229 pm_genpd_init(&adev->acp.acp_genpd->gpd, NULL, false);
231 adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
234 if (adev->acp.acp_cell == NULL)
237 adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
238 if (adev->acp.acp_res == NULL) {
239 kfree(adev->acp.acp_cell);
243 i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
244 if (i2s_pdata == NULL) {
245 kfree(adev->acp.acp_res);
246 kfree(adev->acp.acp_cell);
250 switch (adev->asic_type) {
252 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
253 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
256 i2s_pdata[0].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
258 i2s_pdata[0].cap = DWC_I2S_PLAY;
259 i2s_pdata[0].snd_rates = SNDRV_PCM_RATE_8000_96000;
260 i2s_pdata[0].i2s_reg_comp1 = ACP_I2S_COMP1_PLAY_REG_OFFSET;
261 i2s_pdata[0].i2s_reg_comp2 = ACP_I2S_COMP2_PLAY_REG_OFFSET;
262 switch (adev->asic_type) {
264 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
265 DW_I2S_QUIRK_COMP_PARAM1 |
266 DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
269 i2s_pdata[1].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET |
270 DW_I2S_QUIRK_COMP_PARAM1;
273 i2s_pdata[1].cap = DWC_I2S_RECORD;
274 i2s_pdata[1].snd_rates = SNDRV_PCM_RATE_8000_96000;
275 i2s_pdata[1].i2s_reg_comp1 = ACP_I2S_COMP1_CAP_REG_OFFSET;
276 i2s_pdata[1].i2s_reg_comp2 = ACP_I2S_COMP2_CAP_REG_OFFSET;
278 i2s_pdata[2].quirks = DW_I2S_QUIRK_COMP_REG_OFFSET;
279 switch (adev->asic_type) {
281 i2s_pdata[2].quirks |= DW_I2S_QUIRK_16BIT_IDX_OVERRIDE;
287 i2s_pdata[2].cap = DWC_I2S_PLAY | DWC_I2S_RECORD;
288 i2s_pdata[2].snd_rates = SNDRV_PCM_RATE_8000_96000;
289 i2s_pdata[2].i2s_reg_comp1 = ACP_BT_COMP1_REG_OFFSET;
290 i2s_pdata[2].i2s_reg_comp2 = ACP_BT_COMP2_REG_OFFSET;
292 adev->acp.acp_res[0].name = "acp2x_dma";
293 adev->acp.acp_res[0].flags = IORESOURCE_MEM;
294 adev->acp.acp_res[0].start = acp_base;
295 adev->acp.acp_res[0].end = acp_base + ACP_DMA_REGS_END;
297 adev->acp.acp_res[1].name = "acp2x_dw_i2s_play";
298 adev->acp.acp_res[1].flags = IORESOURCE_MEM;
299 adev->acp.acp_res[1].start = acp_base + ACP_I2S_PLAY_REGS_START;
300 adev->acp.acp_res[1].end = acp_base + ACP_I2S_PLAY_REGS_END;
302 adev->acp.acp_res[2].name = "acp2x_dw_i2s_cap";
303 adev->acp.acp_res[2].flags = IORESOURCE_MEM;
304 adev->acp.acp_res[2].start = acp_base + ACP_I2S_CAP_REGS_START;
305 adev->acp.acp_res[2].end = acp_base + ACP_I2S_CAP_REGS_END;
307 adev->acp.acp_res[3].name = "acp2x_dw_bt_i2s_play_cap";
308 adev->acp.acp_res[3].flags = IORESOURCE_MEM;
309 adev->acp.acp_res[3].start = acp_base + ACP_BT_PLAY_REGS_START;
310 adev->acp.acp_res[3].end = acp_base + ACP_BT_PLAY_REGS_END;
312 adev->acp.acp_res[4].name = "acp2x_dma_irq";
313 adev->acp.acp_res[4].flags = IORESOURCE_IRQ;
314 adev->acp.acp_res[4].start = amdgpu_irq_create_mapping(adev, 162);
315 adev->acp.acp_res[4].end = adev->acp.acp_res[4].start;
317 adev->acp.acp_cell[0].name = "acp_audio_dma";
318 adev->acp.acp_cell[0].num_resources = 5;
319 adev->acp.acp_cell[0].resources = &adev->acp.acp_res[0];
320 adev->acp.acp_cell[0].platform_data = &adev->asic_type;
321 adev->acp.acp_cell[0].pdata_size = sizeof(adev->asic_type);
323 adev->acp.acp_cell[1].name = "designware-i2s";
324 adev->acp.acp_cell[1].num_resources = 1;
325 adev->acp.acp_cell[1].resources = &adev->acp.acp_res[1];
326 adev->acp.acp_cell[1].platform_data = &i2s_pdata[0];
327 adev->acp.acp_cell[1].pdata_size = sizeof(struct i2s_platform_data);
329 adev->acp.acp_cell[2].name = "designware-i2s";
330 adev->acp.acp_cell[2].num_resources = 1;
331 adev->acp.acp_cell[2].resources = &adev->acp.acp_res[2];
332 adev->acp.acp_cell[2].platform_data = &i2s_pdata[1];
333 adev->acp.acp_cell[2].pdata_size = sizeof(struct i2s_platform_data);
335 adev->acp.acp_cell[3].name = "designware-i2s";
336 adev->acp.acp_cell[3].num_resources = 1;
337 adev->acp.acp_cell[3].resources = &adev->acp.acp_res[3];
338 adev->acp.acp_cell[3].platform_data = &i2s_pdata[2];
339 adev->acp.acp_cell[3].pdata_size = sizeof(struct i2s_platform_data);
341 r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
346 for (i = 0; i < ACP_DEVS ; i++) {
347 dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
348 r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
350 dev_err(dev, "Failed to add dev to genpd\n");
356 /* Assert Soft reset of ACP */
357 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
359 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
360 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
362 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
364 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
365 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
366 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
369 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
374 /* Enable clock to ACP and wait until the clock is enabled */
375 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
376 val = val | ACP_CONTROL__ClkEn_MASK;
377 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
379 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
382 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
386 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
391 /* Deassert the SOFT RESET flags */
392 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
393 val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
394 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
399 * acp_hw_fini - stop the hardware block
401 * @adev: amdgpu_device pointer
404 static int acp_hw_fini(void *handle)
410 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
412 /* return early if no ACP */
413 if (!adev->acp.acp_genpd) {
414 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
418 /* Assert Soft reset of ACP */
419 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
421 val |= ACP_SOFT_RESET__SoftResetAud_MASK;
422 cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
424 count = ACP_SOFT_RESET_DONE_TIME_OUT_VALUE;
426 val = cgs_read_register(adev->acp.cgs_device, mmACP_SOFT_RESET);
427 if (ACP_SOFT_RESET__SoftResetAudDone_MASK ==
428 (val & ACP_SOFT_RESET__SoftResetAudDone_MASK))
431 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
436 /* Disable ACP clock */
437 val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
438 val &= ~ACP_CONTROL__ClkEn_MASK;
439 cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
441 count = ACP_CLOCK_EN_TIME_OUT_VALUE;
444 val = cgs_read_register(adev->acp.cgs_device, mmACP_STATUS);
448 dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
454 for (i = 0; i < ACP_DEVS ; i++) {
455 dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
456 ret = pm_genpd_remove_device(dev);
457 /* If removal fails, dont giveup and try rest */
459 dev_err(dev, "remove dev from genpd failed\n");
462 mfd_remove_devices(adev->acp.parent);
463 kfree(adev->acp.acp_res);
464 kfree(adev->acp.acp_genpd);
465 kfree(adev->acp.acp_cell);
470 static int acp_suspend(void *handle)
472 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
474 /* power up on suspend */
475 if (!adev->acp.acp_cell)
476 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, false);
480 static int acp_resume(void *handle)
482 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
484 /* power down again on resume */
485 if (!adev->acp.acp_cell)
486 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, true);
490 static int acp_early_init(void *handle)
495 static bool acp_is_idle(void *handle)
500 static int acp_wait_for_idle(void *handle)
505 static int acp_soft_reset(void *handle)
510 static int acp_set_clockgating_state(void *handle,
511 enum amd_clockgating_state state)
516 static int acp_set_powergating_state(void *handle,
517 enum amd_powergating_state state)
519 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
520 bool enable = state == AMD_PG_STATE_GATE ? true : false;
522 if (adev->powerplay.pp_funcs &&
523 adev->powerplay.pp_funcs->set_powergating_by_smu)
524 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_ACP, enable);
529 static const struct amd_ip_funcs acp_ip_funcs = {
531 .early_init = acp_early_init,
533 .sw_init = acp_sw_init,
534 .sw_fini = acp_sw_fini,
535 .hw_init = acp_hw_init,
536 .hw_fini = acp_hw_fini,
537 .suspend = acp_suspend,
538 .resume = acp_resume,
539 .is_idle = acp_is_idle,
540 .wait_for_idle = acp_wait_for_idle,
541 .soft_reset = acp_soft_reset,
542 .set_clockgating_state = acp_set_clockgating_state,
543 .set_powergating_state = acp_set_powergating_state,
546 const struct amdgpu_ip_block_version acp_ip_block =
548 .type = AMD_IP_BLOCK_TYPE_ACP,
552 .funcs = &acp_ip_funcs,