// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2022 Advanced Micro Devices, Inc.
//
// Authors: Ajit Kumar Pandey <[email protected]>
// V sujith kumar Reddy <[email protected]>
/* ACP-specific Common code */
#include "../sof-priv.h"
#include "../sof-audio.h"
#include "../ops.h"
#include "acp.h"
#include "acp-dsp-offset.h"
#include <sound/sof/xtensa.h>
/**
* amd_sof_ipc_dump() - This function is called when IPC tx times out.
* @sdev: SOF device.
*/
void amd_sof_ipc_dump(struct snd_sof_dev *sdev)
{
const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
u32 base = desc->dsp_intr_base;
u32 dsp_msg_write = sdev->debug_box.offset +
offsetof(struct scratch_ipc_conf, sof_dsp_msg_write);
u32 dsp_ack_write = sdev->debug_box.offset +
offsetof(struct scratch_ipc_conf, sof_dsp_ack_write);
u32 host_msg_write = sdev->debug_box.offset +
offsetof(struct scratch_ipc_conf, sof_host_msg_write);
u32 host_ack_write = sdev->debug_box.offset +
offsetof(struct scratch_ipc_conf, sof_host_ack_write);
u32 dsp_msg, dsp_ack, host_msg, host_ack, irq_stat;
dsp_msg = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_msg_write);
dsp_ack = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + dsp_ack_write);
host_msg = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + host_msg_write);
host_ack = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + host_ack_write);
irq_stat = snd_sof_dsp_read(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET);
dev_err(sdev->dev,
"dsp_msg = %#x dsp_ack = %#x host_msg = %#x host_ack = %#x irq_stat = %#x\n",
dsp_msg, dsp_ack, host_msg, host_ack, irq_stat);
}
/**
* amd_get_registers() - This function is called in case of DSP oops
* in order to gather information about the registers, filename and
* linenumber and stack.
* @sdev: SOF device.
* @xoops: Stores information about registers.
* @panic_info: Stores information about filename and line number.
* @stack: Stores the stack dump.
* @stack_words: Size of the stack dump.
*/
static void amd_get_registers(struct snd_sof_dev *sdev,
struct sof_ipc_dsp_oops_xtensa *xoops,
struct sof_ipc_panic_info *panic_info,
u32 *stack, size_t stack_words)
{
u32 offset = sdev->dsp_oops_offset;
/* first read registers */
acp_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
/* then get panic info */
if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
xoops->arch_hdr.totalsize);
return;
}
offset += xoops->arch_hdr.totalsize;
acp_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));
/* then get the stack */
offset += sizeof(*panic_info);
acp_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
}
/**
* amd_sof_dump() - This function is called when a panic message is
* received from the firmware.
* @sdev: SOF device.
* @flags: parameter not used but required by ops prototype
*/
void amd_sof_dump(struct snd_sof_dev *sdev, u32 flags)
{
struct sof_ipc_dsp_oops_xtensa xoops;
struct sof_ipc_panic_info panic_info;
u32 stack[AMD_STACK_DUMP_SIZE];
u32 status;
/* Get information about the panic status from the debug box area.
* Compute the trace point based on the status.
*/
if (sdev->dsp_oops_offset > sdev->debug_box.offset) {
acp_mailbox_read(sdev, sdev->debug_box.offset, &status, sizeof(u32));
} else {
/* Read DSP Panic status from dsp_box.
* As window information for exception box offset and size is not available
* before FW_READY
*/
acp_mailbox_read(sdev, sdev->dsp_box.offset, &status, sizeof(u32));
sdev->dsp_oops_offset = sdev->dsp_box.offset + sizeof(status);
}
/* Get information about the registers, the filename and line
* number and the stack.
*/
amd_get_registers(sdev, &xoops, &panic_info, stack, AMD_STACK_DUMP_SIZE);
/* Print the information to the console */
sof_print_oops_and_stack(sdev, KERN_ERR, status, status, &xoops,
&panic_info, stack, AMD_STACK_DUMP_SIZE);
}
#if IS_ENABLED(CONFIG_SND_SOC_SOF_AMD_SOUNDWIRE)
static int amd_sof_sdw_get_slave_info(struct snd_sof_dev *sdev)
{
struct acp_dev_data *acp_data = sdev->pdata->hw_pdata;
return sdw_amd_get_slave_info(acp_data->sdw);
}
static struct snd_soc_acpi_mach *amd_sof_sdw_machine_select(struct snd_sof_dev *sdev)
{
struct snd_soc_acpi_mach *mach;
const struct snd_soc_acpi_link_adr *link;
struct acp_dev_data *acp_data = sdev->pdata->hw_pdata;
int ret, i;
if (acp_data->info.count) {
ret = amd_sof_sdw_get_slave_info(sdev);
if (ret) {
dev_info(sdev->dev, "failed to read slave information\n");
return NULL;
}
for (mach = sdev->pdata->desc->alt_machines; mach; mach++) {
if (!mach->links)
break;
link = mach->links;
for (i = 0; i < acp_data->info.count && link->num_adr; link++, i++) {
if (!snd_soc_acpi_sdw_link_slaves_found(sdev->dev, link,
acp_data->sdw->ids,
acp_data->sdw->num_slaves))
break;
}
if (i == acp_data->info.count || !link->num_adr)
break;
}
if (mach && mach->link_mask) {
mach->mach_params.subsystem_rev = acp_data->pci_rev;
mach->mach_params.links = mach->links;
mach->mach_params.link_mask = mach->link_mask;
mach->mach_params.platform = dev_name(sdev->dev);
return mach;
}
}
dev_info(sdev->dev, "No SoundWire machine driver found\n");
return NULL;
}
#else
static struct snd_soc_acpi_mach *amd_sof_sdw_machine_select(struct snd_sof_dev *sdev)
{
return NULL;
}
#endif
struct snd_soc_acpi_mach *amd_sof_machine_select(struct snd_sof_dev *sdev)
{
struct snd_sof_pdata *sof_pdata = sdev->pdata;
struct acp_dev_data *acp_data = sdev->pdata->hw_pdata;
const struct sof_dev_desc *desc = sof_pdata->desc;
struct snd_soc_acpi_mach *mach = NULL;
if (desc->machines)
mach = snd_soc_acpi_find_machine(desc->machines);
if (!mach) {
mach = amd_sof_sdw_machine_select(sdev);
if (!mach) {
dev_warn(sdev->dev, "No matching ASoC machine driver found\n");
return NULL;
}
}
mach->mach_params.subsystem_rev = acp_data->pci_rev;
sof_pdata->tplg_filename = mach->sof_tplg_filename;
sof_pdata->fw_filename = mach->fw_filename;
return mach;
}
/* AMD Common DSP ops */
const struct snd_sof_dsp_ops sof_acp_common_ops = {
/* probe and remove */
.probe = amd_sof_acp_probe,
.remove = amd_sof_acp_remove,
/* Register IO */
.write = sof_io_write,
.read = sof_io_read,
/* Block IO */
.block_read = acp_dsp_block_read,
.block_write = acp_dsp_block_write,
/*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
.pre_fw_run = acp_dsp_pre_fw_run,
.get_bar_index = acp_get_bar_index,
/* DSP core boot */
.run = acp_sof_dsp_run,
/*IPC */
.send_msg = acp_sof_ipc_send_msg,
.ipc_msg_data = acp_sof_ipc_msg_data,
.set_stream_data_offset = acp_set_stream_data_offset,
.get_mailbox_offset = acp_sof_ipc_get_mailbox_offset,
.get_window_offset = acp_sof_ipc_get_window_offset,
.irq_thread = acp_sof_ipc_irq_thread,
/* stream callbacks */
.pcm_open = acp_pcm_open,
.pcm_close = acp_pcm_close,
.pcm_hw_params = acp_pcm_hw_params,
.pcm_pointer = acp_pcm_pointer,
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
/* Machine driver callbacks */
.machine_select = amd_sof_machine_select,
.machine_register = sof_machine_register,
.machine_unregister = sof_machine_unregister,
/* Trace Logger */
.trace_init = acp_sof_trace_init,
.trace_release = acp_sof_trace_release,
/* PM */
.suspend = amd_sof_acp_suspend,
.resume = amd_sof_acp_resume,
.ipc_dump = amd_sof_ipc_dump,
.dbg_dump = amd_sof_dump,
.debugfs_add_region_item = snd_sof_debugfs_add_region_item_iomem,
.dsp_arch_ops = &sof_xtensa_arch_ops,
/* probe client device registation */
.register_ipc_clients = acp_probes_register,
.unregister_ipc_clients = acp_probes_unregister,
};
EXPORT_SYMBOL_NS(sof_acp_common_ops, SND_SOC_SOF_AMD_COMMON);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("ACP SOF COMMON Driver");
MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
MODULE_IMPORT_NS(SOUNDWIRE_AMD_INIT);
Codebase Browser
linux