From: V sujith kumar Reddy Vsujithkumar.Reddy@amd.com
This patch consist of probe client device registration,stream tag and dma channel configuration for SOF firmware.
Signed-off-by: V sujith kumar Reddy Vsujithkumar.Reddy@amd.com --- sound/soc/sof/amd/Kconfig | 8 ++ sound/soc/sof/amd/Makefile | 1 + sound/soc/sof/amd/acp-common.c | 4 + sound/soc/sof/amd/acp-ipc.c | 26 ++++++ sound/soc/sof/amd/acp-probes.c | 147 +++++++++++++++++++++++++++++++++ sound/soc/sof/amd/acp.h | 9 ++ 6 files changed, 195 insertions(+) create mode 100644 sound/soc/sof/amd/acp-probes.c
diff --git a/sound/soc/sof/amd/Kconfig b/sound/soc/sof/amd/Kconfig index 1cb92d6030e3..7dbc8df5cfe6 100644 --- a/sound/soc/sof/amd/Kconfig +++ b/sound/soc/sof/amd/Kconfig @@ -21,6 +21,7 @@ config SND_SOC_SOF_AMD_COMMON select SND_SOC_SOF_PCI_DEV select SND_AMD_ACP_CONFIG select SND_SOC_SOF_XTENSA + select SND_SOC_SOF_ACP_PROBES select SND_SOC_ACPI if ACPI help This option is not user-selectable but automatically handled by @@ -42,4 +43,11 @@ config SND_SOC_SOF_AMD_REMBRANDT Say Y if you want to enable SOF on Rembrandt. If unsure select "N".
+config SND_SOC_SOF_ACP_PROBES + tristate + select SND_SOC_SOF_DEBUG_PROBES + help + This option is not user-selectable but automatically handled by + 'select' statements at a higher level + endif diff --git a/sound/soc/sof/amd/Makefile b/sound/soc/sof/amd/Makefile index 5626d13b3e69..ef9f7df4e379 100644 --- a/sound/soc/sof/amd/Makefile +++ b/sound/soc/sof/amd/Makefile @@ -5,6 +5,7 @@ # Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
snd-sof-amd-acp-objs := acp.o acp-loader.o acp-ipc.o acp-pcm.o acp-stream.o acp-trace.o acp-common.o +snd-sof-amd-acp-$(CONFIG_SND_SOC_SOF_ACP_PROBES) = acp-probes.o snd-sof-amd-renoir-objs := pci-rn.o renoir.o snd-sof-amd-rembrandt-objs := pci-rmb.o rembrandt.o
diff --git a/sound/soc/sof/amd/acp-common.c b/sound/soc/sof/amd/acp-common.c index df36b411a12e..3a0c7688dcfe 100644 --- a/sound/soc/sof/amd/acp-common.c +++ b/sound/soc/sof/amd/acp-common.c @@ -196,6 +196,10 @@ struct snd_sof_dsp_ops sof_acp_common_ops = { .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);
diff --git a/sound/soc/sof/amd/acp-ipc.c b/sound/soc/sof/amd/acp-ipc.c index 8a0fc635a997..81a2c096a185 100644 --- a/sound/soc/sof/amd/acp-ipc.c +++ b/sound/soc/sof/amd/acp-ipc.c @@ -155,6 +155,8 @@ static void acp_dsp_ipc_get_reply(struct snd_sof_dev *sdev) irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context) { struct snd_sof_dev *sdev = context; + const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata); + struct acp_dev_data *adata = sdev->pdata->hw_pdata; unsigned int dsp_msg_write = sdev->debug_box.offset + offsetof(struct scratch_ipc_conf, sof_dsp_msg_write); unsigned int dsp_ack_write = sdev->debug_box.offset + @@ -200,6 +202,30 @@ irqreturn_t acp_sof_ipc_irq_thread(int irq, void *context) return IRQ_HANDLED; }
+ if (desc->probe_reg_offset) { + u32 val; + u32 posn; + + /* Probe register consists of two parts + * (0-30) bit has cumulative position value + * 31 bit is a synchronization flag between DSP and CPU + * for the position update + */ + val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->probe_reg_offset); + if (val & PROBE_STATUS_BIT) { + posn = val & ~PROBE_STATUS_BIT; + if (adata->probe_stream) { + /* Probe related posn value is of 31 bits limited to 2GB + * once wrapped DSP won't send posn interrupt. + */ + adata->probe_stream->cstream_posn = posn; + snd_compr_fragment_elapsed(adata->probe_stream->cstream); + snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->probe_reg_offset, posn); + ipc_irq = true; + } + } + } + if (!ipc_irq) dev_dbg_ratelimited(sdev->dev, "nothing to do in IPC IRQ thread\n");
diff --git a/sound/soc/sof/amd/acp-probes.c b/sound/soc/sof/amd/acp-probes.c new file mode 100644 index 000000000000..778cf1a8b610 --- /dev/null +++ b/sound/soc/sof/amd/acp-probes.c @@ -0,0 +1,147 @@ +// 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) 2023 Advanced Micro Devices, Inc. +// +// Authors: V Sujith Kumar Reddy Vsujithkumar.Reddy@amd.com + +/* + * Probe interface for generic AMD audio ACP DSP block + */ + +#include <linux/module.h> +#include <sound/soc.h> +#include "../sof-priv.h" +#include "../sof-client-probes.h" +#include "../sof-client.h" +#include "../ops.h" +#include "acp.h" +#include "acp-dsp-offset.h" + +static int acp_probes_compr_startup(struct sof_client_dev *cdev, + struct snd_compr_stream *cstream, + struct snd_soc_dai *dai, u32 *stream_id) +{ + struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev); + struct acp_dsp_stream *stream; + struct acp_dev_data *adata; + + adata = sdev->pdata->hw_pdata; + stream = acp_dsp_stream_get(sdev, 0); + if (!stream) + return -ENODEV; + + stream->cstream = cstream; + cstream->runtime->private_data = stream; + + adata->probe_stream = stream; + *stream_id = stream->stream_tag; + + return 0; +} + +static int acp_probes_compr_shutdown(struct sof_client_dev *cdev, + struct snd_compr_stream *cstream, + struct snd_soc_dai *dai) +{ + struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev); + struct acp_dsp_stream *stream = cstream->runtime->private_data; + struct acp_dev_data *adata; + int ret; + + ret = acp_dsp_stream_put(sdev, stream); + if (ret < 0) { + dev_err(sdev->dev, "Failed to release probe compress stream\n"); + return ret; + } + + adata = sdev->pdata->hw_pdata; + stream->cstream = NULL; + cstream->runtime->private_data = NULL; + adata->probe_stream = NULL; + + return 0; +} + +static int acp_probes_compr_set_params(struct sof_client_dev *cdev, + struct snd_compr_stream *cstream, + struct snd_compr_params *params, + struct snd_soc_dai *dai) +{ + struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev); + struct acp_dsp_stream *stream = cstream->runtime->private_data; + unsigned int buf_offset, index; + u32 size; + int ret; + + stream->dmab = cstream->runtime->dma_buffer_p; + stream->num_pages = PFN_UP(cstream->runtime->dma_bytes); + size = cstream->runtime->buffer_size; + + ret = acp_dsp_stream_config(sdev, stream); + if (ret < 0) { + acp_dsp_stream_put(sdev, stream); + return ret; + } + + /* write buffer size of stream in scratch memory */ + + buf_offset = sdev->debug_box.offset + + offsetof(struct scratch_reg_conf, buf_size); + index = stream->stream_tag - 1; + buf_offset = buf_offset + index * 4; + + snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SCRATCH_REG_0 + buf_offset, size); + + return 0; +} + +static int acp_probes_compr_trigger(struct sof_client_dev *cdev, + struct snd_compr_stream *cstream, + int cmd, struct snd_soc_dai *dai) +{ + /* Nothing to do here, as it is a mandatory callback just defined */ + return 0; +} + +static int acp_probes_compr_pointer(struct sof_client_dev *cdev, + struct snd_compr_stream *cstream, + struct snd_compr_tstamp *tstamp, + struct snd_soc_dai *dai) +{ + struct acp_dsp_stream *stream = cstream->runtime->private_data; + struct snd_soc_pcm_stream *pstream; + + pstream = &dai->driver->capture; + tstamp->copied_total = stream->cstream_posn; + tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates); + + return 0; +} + +/* SOF client implementation */ +static const struct sof_probes_host_ops acp_probes_ops = { + .startup = acp_probes_compr_startup, + .shutdown = acp_probes_compr_shutdown, + .set_params = acp_probes_compr_set_params, + .trigger = acp_probes_compr_trigger, + .pointer = acp_probes_compr_pointer, +}; + +int acp_probes_register(struct snd_sof_dev *sdev) +{ + return sof_client_dev_register(sdev, "acp-probes", 0, &acp_probes_ops, + sizeof(acp_probes_ops)); +} +EXPORT_SYMBOL_NS(acp_probes_register, SND_SOC_SOF_AMD_COMMON); + +void acp_probes_unregister(struct snd_sof_dev *sdev) +{ + sof_client_dev_unregister(sdev, "acp-probes", 0); +} +EXPORT_SYMBOL_NS(acp_probes_unregister, SND_SOC_SOF_AMD_COMMON); + +MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT); + diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index c3659dbc3745..72fa0af971f0 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -77,6 +77,7 @@ #define AMD_STACK_DUMP_SIZE 32
#define SRAM1_SIZE 0x13A000 +#define PROBE_STATUS_BIT BIT(31)
enum clock_source { ACP_CLOCK_96M = 0, @@ -156,6 +157,8 @@ struct acp_dsp_stream { int active; unsigned int reg_offset; size_t posn_offset; + struct snd_compr_stream *cstream; + u64 cstream_posn; };
struct sof_amd_acp_desc { @@ -168,6 +171,7 @@ struct sof_amd_acp_desc { u32 hw_semaphore_offset; u32 acp_clkmux_sel; u32 fusion_dsp_offset; + u32 probe_reg_offset; };
/* Common device data struct for ACP devices */ @@ -186,6 +190,7 @@ struct acp_dev_data { struct acp_dsp_stream stream_buf[ACP_MAX_STREAM]; struct acp_dsp_stream *dtrace_stream; struct pci_dev *smn_dev; + struct acp_dsp_stream *probe_stream; };
void memcpy_to_scratch(struct snd_sof_dev *sdev, u32 offset, unsigned int *src, size_t bytes); @@ -273,4 +278,8 @@ static inline const struct sof_amd_acp_desc *get_chip_info(struct snd_sof_pdata
return desc->chip_info; } + +int acp_probes_register(struct snd_sof_dev *sdev); +void acp_probes_unregister(struct snd_sof_dev *sdev); + #endif