1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2024 Intel Corporation
4 //
5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 //
8
9 #include <sound/hdaudio_ext.h>
10 #include "avs.h"
11 #include "messages.h"
12
13 static void avs_cnl_ipc_interrupt(struct avs_dev *adev)
14 {
15 const struct avs_spec *spec = adev->spec;
16 u32 hipc_ack, hipc_rsp;
17
18 snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
19 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 0);
20
21 hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset);
22 hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset);
23
24 /* DSP acked host's request. */
25 if (hipc_ack & spec->hipc->ack_done_mask) {
26 complete(&adev->ipc->done_completion);
27
28 /* Tell DSP it has our attention. */
29 snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset, spec->hipc->ack_done_mask,
30 spec->hipc->ack_done_mask);
31 }
32
33 /* DSP sent new response to process. */
34 if (hipc_rsp & spec->hipc->rsp_busy_mask) {
35 union avs_reply_msg msg;
36 u32 hipctda;
37
38 msg.primary = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDR);
39 msg.ext.val = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDD);
40
41 avs_dsp_process_response(adev, msg.val);
42
43 /* Tell DSP we accepted its message. */
44 snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDR,
45 CNL_ADSP_HIPCTDR_BUSY, CNL_ADSP_HIPCTDR_BUSY);
46 /* Ack this response. */
47 snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDA,
48 CNL_ADSP_HIPCTDA_DONE, CNL_ADSP_HIPCTDA_DONE);
49 /* HW might have been clock gated, give some time for change to propagate. */
50 snd_hdac_adsp_readl_poll(adev, CNL_ADSP_REG_HIPCTDA, hipctda,
51 !(hipctda & CNL_ADSP_HIPCTDA_DONE), 10, 1000);
52 }
53
54 snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,
55 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY,
56 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY);
57 }
58
59 irqreturn_t avs_cnl_dsp_interrupt(struct avs_dev *adev)
60 {
61 u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);
62 irqreturn_t ret = IRQ_NONE;
63
64 if (adspis == UINT_MAX)
65 return ret;
66
67 if (adspis & AVS_ADSP_ADSPIS_IPC) {
68 avs_cnl_ipc_interrupt(adev);
69 ret = IRQ_HANDLED;
70 }
71
72 return ret;
73 }
74
75 const struct avs_dsp_ops avs_cnl_dsp_ops = {
76 .power = avs_dsp_core_power,
77 .reset = avs_dsp_core_reset,
78 .stall = avs_dsp_core_stall,
79 .dsp_interrupt = avs_cnl_dsp_interrupt,
80 .int_control = avs_dsp_interrupt_control,
81 .load_basefw = avs_hda_load_basefw,
82 .load_lib = avs_hda_load_library,
83 .transfer_mods = avs_hda_transfer_modules,
84 .log_buffer_offset = avs_skl_log_buffer_offset,
85 .log_buffer_status = avs_apl_log_buffer_status,
86 .coredump = avs_apl_coredump,
87 .d0ix_toggle = avs_apl_d0ix_toggle,
88 .set_d0ix = avs_apl_set_d0ix,
89 AVS_SET_ENABLE_LOGS_OP(apl)
90 };
91
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.