xref: /kernel/linux/linux-6.6/sound/soc/intel/avs/skl.c (revision 62306a36) 
1// SPDX-License-Identifier: GPL-2.0-only
2//
3// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
4//
5// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6//          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7//
8
9#include <linux/devcoredump.h>
10#include <linux/slab.h>
11#include <sound/hdaudio_ext.h>
12#include "avs.h"
13#include "messages.h"
14
15static int __maybe_unused
16skl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period,
17		u32 fifo_full_period, unsigned long resource_mask, u32 *priorities)
18{
19	struct skl_log_state_info *info;
20	u32 size, num_cores = adev->hw_cfg.dsp_cores;
21	int ret, i;
22
23	if (fls_long(resource_mask) > num_cores)
24		return -EINVAL;
25	size = struct_size(info, logs_core, num_cores);
26	info = kzalloc(size, GFP_KERNEL);
27	if (!info)
28		return -ENOMEM;
29
30	info->core_mask = resource_mask;
31	if (enable)
32		for_each_set_bit(i, &resource_mask, num_cores) {
33			info->logs_core[i].enable = enable;
34			info->logs_core[i].min_priority = *priorities++;
35		}
36	else
37		for_each_set_bit(i, &resource_mask, num_cores)
38			info->logs_core[i].enable = enable;
39
40	ret = avs_ipc_set_enable_logs(adev, (u8 *)info, size);
41	kfree(info);
42	if (ret)
43		return AVS_IPC_RET(ret);
44
45	return 0;
46}
47
48int skl_log_buffer_offset(struct avs_dev *adev, u32 core)
49{
50	return core * avs_log_buffer_size(adev);
51}
52
53/* fw DbgLogWp registers */
54#define FW_REGS_DBG_LOG_WP(core) (0x30 + 0x4 * core)
55
56static int
57skl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg)
58{
59	void __iomem *buf;
60	u16 size, write, offset;
61
62	if (!avs_logging_fw(adev))
63		return 0;
64
65	size = avs_log_buffer_size(adev) / 2;
66	write = readl(avs_sram_addr(adev, AVS_FW_REGS_WINDOW) + FW_REGS_DBG_LOG_WP(msg->log.core));
67	/* determine buffer half */
68	offset = (write < size) ? size : 0;
69
70	/* Address is guaranteed to exist in SRAM2. */
71	buf = avs_log_buffer_addr(adev, msg->log.core) + offset;
72	avs_dump_fw_log_wakeup(adev, buf, size);
73
74	return 0;
75}
76
77static int skl_coredump(struct avs_dev *adev, union avs_notify_msg *msg)
78{
79	u8 *dump;
80
81	dump = vzalloc(AVS_FW_REGS_SIZE);
82	if (!dump)
83		return -ENOMEM;
84
85	memcpy_fromio(dump, avs_sram_addr(adev, AVS_FW_REGS_WINDOW), AVS_FW_REGS_SIZE);
86	dev_coredumpv(adev->dev, dump, AVS_FW_REGS_SIZE, GFP_KERNEL);
87
88	return 0;
89}
90
91static bool
92skl_d0ix_toggle(struct avs_dev *adev, struct avs_ipc_msg *tx, bool wake)
93{
94	/* unsupported on cAVS 1.5 hw */
95	return false;
96}
97
98static int skl_set_d0ix(struct avs_dev *adev, bool enable)
99{
100	/* unsupported on cAVS 1.5 hw */
101	return 0;
102}
103
104const struct avs_dsp_ops skl_dsp_ops = {
105	.power = avs_dsp_core_power,
106	.reset = avs_dsp_core_reset,
107	.stall = avs_dsp_core_stall,
108	.irq_handler = avs_dsp_irq_handler,
109	.irq_thread = avs_dsp_irq_thread,
110	.int_control = avs_dsp_interrupt_control,
111	.load_basefw = avs_cldma_load_basefw,
112	.load_lib = avs_cldma_load_library,
113	.transfer_mods = avs_cldma_transfer_modules,
114	.log_buffer_offset = skl_log_buffer_offset,
115	.log_buffer_status = skl_log_buffer_status,
116	.coredump = skl_coredump,
117	.d0ix_toggle = skl_d0ix_toggle,
118	.set_d0ix = skl_set_d0ix,
119	AVS_SET_ENABLE_LOGS_OP(skl)
120};
121