Define tracing macros for easy avs debug. These cover all IPC message types: requests, replies and notifications as well as DSP-core operations and d0ix toggling.
Signed-off-by: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com --- sound/soc/intel/avs/Makefile | 4 + sound/soc/intel/avs/dsp.c | 10 +++ sound/soc/intel/avs/ipc.c | 30 ++++++- sound/soc/intel/avs/trace.c | 33 ++++++++ sound/soc/intel/avs/trace.h | 158 +++++++++++++++++++++++++++++++++++ 5 files changed, 232 insertions(+), 3 deletions(-) create mode 100644 sound/soc/intel/avs/trace.c create mode 100644 sound/soc/intel/avs/trace.h
diff --git a/sound/soc/intel/avs/Makefile b/sound/soc/intel/avs/Makefile index 62b3581d6cdb..38285e73e75d 100644 --- a/sound/soc/intel/avs/Makefile +++ b/sound/soc/intel/avs/Makefile @@ -4,4 +4,8 @@ snd-soc-avs-objs := dsp.o ipc.o messages.o utils.o core.o loader.o \ topology.o path.o pcm.o snd-soc-avs-objs += cldma.o
+snd-soc-avs-objs += trace.o +# tell define_trace.h where to find the trace header +CFLAGS_trace.o := -I$(src) + obj-$(CONFIG_SND_SOC_INTEL_AVS) += snd-soc-avs.o diff --git a/sound/soc/intel/avs/dsp.c b/sound/soc/intel/avs/dsp.c index 2f18b137ff42..8f111250c5b1 100644 --- a/sound/soc/intel/avs/dsp.c +++ b/sound/soc/intel/avs/dsp.c @@ -10,6 +10,7 @@ #include <sound/hdaudio_ext.h> #include "avs.h" #include "registers.h" +#include "trace.h"
#define AVS_ADSPCS_INTERVAL_US 500 #define AVS_ADSPCS_TIMEOUT_US 50000 @@ -19,6 +20,9 @@ int avs_dsp_core_power(struct avs_dev *adev, u32 core_mask, bool power) u32 value, mask, reg; int ret;
+ value = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPCS); + trace_avs_dsp_core_op(value, core_mask, "power", power); + mask = AVS_ADSPCS_SPA_MASK(core_mask); value = power ? mask : 0;
@@ -43,6 +47,9 @@ int avs_dsp_core_reset(struct avs_dev *adev, u32 core_mask, bool reset) u32 value, mask, reg; int ret;
+ value = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPCS); + trace_avs_dsp_core_op(value, core_mask, "reset", reset); + mask = AVS_ADSPCS_CRST_MASK(core_mask); value = reset ? mask : 0;
@@ -64,6 +71,9 @@ int avs_dsp_core_stall(struct avs_dev *adev, u32 core_mask, bool stall) u32 value, mask, reg; int ret;
+ value = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPCS); + trace_avs_dsp_core_op(value, core_mask, "stall", stall); + mask = AVS_ADSPCS_CSTALL_MASK(core_mask); value = stall ? mask : 0;
diff --git a/sound/soc/intel/avs/ipc.c b/sound/soc/intel/avs/ipc.c index 2cf4cb4f0c56..d755ba8b8518 100644 --- a/sound/soc/intel/avs/ipc.c +++ b/sound/soc/intel/avs/ipc.c @@ -6,11 +6,13 @@ // Amadeusz Slawinski amadeuszx.slawinski@linux.intel.com //
+#include <linux/io-64-nonatomic-lo-hi.h> #include <linux/slab.h> #include <sound/hdaudio_ext.h> #include "avs.h" #include "messages.h" #include "registers.h" +#include "trace.h"
#define AVS_IPC_TIMEOUT_MS 300 #define AVS_D0IX_DELAY_MS 300 @@ -179,6 +181,10 @@ static void avs_dsp_receive_rx(struct avs_dev *adev, u64 header) { struct avs_ipc *ipc = adev->ipc; union avs_reply_msg msg = AVS_MSG(header); + u64 reg; + + reg = readq(avs_sram_addr(adev, AVS_FW_REGS_WINDOW)); + trace_avs_ipc_reply_msg(header, reg);
ipc->rx.header = header; /* Abort copying payload if request processing was unsuccessful. */ @@ -189,6 +195,7 @@ static void avs_dsp_receive_rx(struct avs_dev *adev, u64 header) ipc->rx.size = msg.ext.large_config.data_off_size;
memcpy_fromio(ipc->rx.data, avs_uplink_addr(adev), ipc->rx.size); + trace_avs_msg_payload(ipc->rx.data, ipc->rx.size); } }
@@ -198,6 +205,10 @@ static void avs_dsp_process_notification(struct avs_dev *adev, u64 header) union avs_notify_msg msg = AVS_MSG(header); size_t data_size = 0; void *data = NULL; + u64 reg; + + reg = readq(avs_sram_addr(adev, AVS_FW_REGS_WINDOW)); + trace_avs_ipc_notify_msg(header, reg);
/* Ignore spurious notifications until handshake is established. */ if (!adev->ipc->ready && msg.notify_msg_type != AVS_NOTIFY_FW_READY) { @@ -239,6 +250,7 @@ static void avs_dsp_process_notification(struct avs_dev *adev, u64 header) return;
memcpy_fromio(data, avs_uplink_addr(adev), data_size); + trace_avs_msg_payload(data, data_size); }
/* Perform notification-specific operations. */ @@ -422,9 +434,15 @@ static void avs_ipc_msg_init(struct avs_ipc *ipc, struct avs_ipc_msg *reply) reinit_completion(&ipc->busy_completion); }
-static void avs_dsp_send_tx(struct avs_dev *adev, struct avs_ipc_msg *tx) +static void avs_dsp_send_tx(struct avs_dev *adev, struct avs_ipc_msg *tx, bool read_fwregs) { + u64 reg = ULONG_MAX; + tx->header |= SKL_ADSP_HIPCI_BUSY; + if (read_fwregs) + reg = readq(avs_sram_addr(adev, AVS_FW_REGS_WINDOW)); + + trace_avs_request(tx, reg);
if (tx->size) memcpy_toio(avs_downlink_addr(adev), tx->data, tx->size); @@ -445,7 +463,7 @@ static int avs_dsp_do_send_msg(struct avs_dev *adev, struct avs_ipc_msg *request
spin_lock(&ipc->rx_lock); avs_ipc_msg_init(ipc, reply); - avs_dsp_send_tx(adev, request); + avs_dsp_send_tx(adev, request, true); spin_unlock(&ipc->rx_lock);
ret = avs_ipc_wait_busy_completion(ipc, timeout); @@ -477,6 +495,7 @@ static int avs_dsp_send_msg_sequence(struct avs_dev *adev, struct avs_ipc_msg *r { int ret;
+ trace_avs_d0ix("wake", wake_d0i0, request->header); if (wake_d0i0) { ret = avs_dsp_wake_d0i0(adev, request); if (ret) @@ -487,6 +506,7 @@ static int avs_dsp_send_msg_sequence(struct avs_dev *adev, struct avs_ipc_msg *r if (ret) return ret;
+ trace_avs_d0ix("schedule", schedule_d0ix, request->header); if (schedule_d0ix) avs_dsp_schedule_d0ix(adev, request);
@@ -530,7 +550,11 @@ static int avs_dsp_do_send_rom_msg(struct avs_dev *adev, struct avs_ipc_msg *req
spin_lock(&ipc->rx_lock); avs_ipc_msg_init(ipc, NULL); - avs_dsp_send_tx(adev, request); + /* + * with hw still stalled, memory windows may not be + * configured properly so avoid accessing SRAM + */ + avs_dsp_send_tx(adev, request, false); spin_unlock(&ipc->rx_lock);
/* ROM messages must be sent before main core is unstalled */ diff --git a/sound/soc/intel/avs/trace.c b/sound/soc/intel/avs/trace.c new file mode 100644 index 000000000000..fcb7cfc823d6 --- /dev/null +++ b/sound/soc/intel/avs/trace.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. +// +// Author: Cezary Rojewski cezary.rojewski@intel.com +// Amadeusz Slawinski amadeuszx.slawinski@linux.intel.com +// + +#include <linux/types.h> + +#define CREATE_TRACE_POINTS +#include "trace.h" + +#define BYTES_PER_LINE 16 +#define MAX_CHUNK_SIZE ((PAGE_SIZE - 150) /* Place for trace header */ \ + / (2 * BYTES_PER_LINE + 4) /* chars per line */ \ + * BYTES_PER_LINE) + +void trace_avs_msg_payload(const void *data, size_t size) +{ + size_t remaining = size; + size_t offset = 0; + + while (remaining > 0) { + u32 chunk; + + chunk = min(remaining, (size_t)MAX_CHUNK_SIZE); + trace_avs_ipc_msg_payload(data, chunk, offset, size); + + remaining -= chunk; + offset += chunk; + } +} diff --git a/sound/soc/intel/avs/trace.h b/sound/soc/intel/avs/trace.h new file mode 100644 index 000000000000..9089ce8d135b --- /dev/null +++ b/sound/soc/intel/avs/trace.h @@ -0,0 +1,158 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM intel_avs + +#if !defined(_TRACE_INTEL_AVS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_INTEL_AVS_H + +#include <linux/types.h> +#include <linux/tracepoint.h> + +TRACE_EVENT(avs_dsp_core_op, + + TP_PROTO(unsigned int reg, unsigned int mask, const char *op, bool flag), + + TP_ARGS(reg, mask, op, flag), + + TP_STRUCT__entry( + __field(unsigned int, reg ) + __field(unsigned int, mask ) + __string(op, op ) + __field(bool, flag ) + ), + + TP_fast_assign( + __entry->reg = reg; + __entry->mask = mask; + __assign_str(op, op); + __entry->flag = flag; + ), + + TP_printk("%s: %d, core mask: 0x%X, prev state: 0x%08X", + __get_str(op), __entry->flag, __entry->mask, __entry->reg) +); + +#ifndef __TRACE_INTEL_AVS_TRACE_HELPER +#define __TRACE_INTEL_AVS_TRACE_HELPER + +#ifdef CONFIG_FTRACE +void trace_avs_msg_payload(const void *data, size_t size); +#else +static inline void trace_avs_msg_payload(const void *data, size_t size) {}; +#endif + +#define trace_avs_request(msg, fwregs) \ +({ \ + trace_avs_ipc_request_msg((msg)->header, fwregs); \ + trace_avs_msg_payload((msg)->data, (msg)->size); \ +}) + +#define trace_avs_reply(msg, fwregs) \ +({ \ + trace_avs_ipc_reply_msg((msg)->header, fwregs); \ + trace_avs_msg_payload((msg)->data, (msg)->size); \ +}) + +#define trace_avs_notify(msg, fwregs) \ +({ \ + trace_avs_ipc_notify_msg((msg)->header, fwregs); \ + trace_avs_msg_payload((msg)->data, (msg)->size); \ +}) +#endif + +DECLARE_EVENT_CLASS(avs_ipc_msg_hdr, + + TP_PROTO(u64 header, u64 fwregs), + + TP_ARGS(header, fwregs), + + TP_STRUCT__entry( + __field(u64, header) + __field(u64, fwregs) + ), + + TP_fast_assign( + __entry->header = header; + __entry->fwregs = fwregs; + ), + + TP_printk("primary: 0x%08X, extension: 0x%08X,\n" + "fwstatus: 0x%08X, fwerror: 0x%08X", + lower_32_bits(__entry->header), upper_32_bits(__entry->header), + lower_32_bits(__entry->fwregs), upper_32_bits(__entry->fwregs)) +); + +DEFINE_EVENT(avs_ipc_msg_hdr, avs_ipc_request_msg, + TP_PROTO(u64 header, u64 fwregs), + TP_ARGS(header, fwregs) +); + +DEFINE_EVENT(avs_ipc_msg_hdr, avs_ipc_reply_msg, + TP_PROTO(u64 header, u64 fwregs), + TP_ARGS(header, fwregs) +); + +DEFINE_EVENT(avs_ipc_msg_hdr, avs_ipc_notify_msg, + TP_PROTO(u64 header, u64 fwregs), + TP_ARGS(header, fwregs) +); + +TRACE_EVENT_CONDITION(avs_ipc_msg_payload, + + TP_PROTO(const u8 *data, size_t size, size_t offset, size_t total), + + TP_ARGS(data, size, offset, total), + + TP_CONDITION(data && size), + + TP_STRUCT__entry( + __dynamic_array(u8, buf, size ) + __field(size_t, offset ) + __field(size_t, pos ) + __field(size_t, total ) + ), + + TP_fast_assign( + memcpy(__get_dynamic_array(buf), data + offset, size); + __entry->offset = offset; + __entry->pos = offset + size; + __entry->total = total; + ), + + TP_printk("range %zu-%zu out of %zu bytes%s", + __entry->offset, __entry->pos, __entry->total, + __print_hex_dump("", DUMP_PREFIX_NONE, 16, 4, + __get_dynamic_array(buf), + __get_dynamic_array_len(buf), false)) +); + +TRACE_EVENT(avs_d0ix, + + TP_PROTO(const char *op, bool proceed, u64 header), + + TP_ARGS(op, proceed, header), + + TP_STRUCT__entry( + __string(op, op ) + __field(bool, proceed ) + __field(u64, header ) + ), + + TP_fast_assign( + __assign_str(op, op); + __entry->proceed = proceed; + __entry->header = header; + ), + + TP_printk("%s%s for request: 0x%08X 0x%08X", + __entry->proceed ? "" : "ignore ", __get_str(op), + lower_32_bits(__entry->header), upper_32_bits(__entry->header)) +); + +#endif /* _TRACE_INTEL_AVS_H */ + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace +#include <trace/define_trace.h>