# tell define_trace.h where to find the trace header
CFLAGS_trace.o := -I$(src)
+ifneq ($(CONFIG_DEBUG_FS),)
+snd-soc-avs-objs += debugfs.o
+endif
+
obj-$(CONFIG_SND_SOC_INTEL_AVS) += snd-soc-avs.o
# Machine support
#ifndef __SOUND_SOC_INTEL_AVS_H
#define __SOUND_SOC_INTEL_AVS_H
+#include <linux/debugfs.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/kfifo.h>
struct mutex path_mutex;
struct avs_debug dbg;
+ spinlock_t trace_lock; /* serialize debug window I/O between each LOG_BUFFER_STATUS */
+#ifdef CONFIG_DEBUG_FS
+ struct kfifo trace_fifo;
+ wait_queue_head_t trace_waitq;
+ u32 aging_timer_period;
+ u32 fifo_full_timer_period;
+ u32 logged_resources; /* context dependent: core or library */
+#endif
};
/* from hda_bus to avs_dev */
#define apl_log_payload_addr(addr) \
(addr + sizeof(struct apl_log_buffer_layout))
+#ifdef CONFIG_DEBUG_FS
+bool avs_logging_fw(struct avs_dev *adev);
+void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len);
+void avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len);
+#else
+static inline bool avs_logging_fw(struct avs_dev *adev)
+{
+ return false;
+}
+
+static inline void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len)
+{
+}
+
+static inline void
+avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len)
+{
+}
+#endif
+
#endif /* __SOUND_SOC_INTEL_AVS_H */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <linux/debugfs.h>
+#include <linux/kfifo.h>
+#include <linux/wait.h>
+#include "avs.h"
+
+bool avs_logging_fw(struct avs_dev *adev)
+{
+ return kfifo_initialized(&adev->trace_fifo);
+}
+
+void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len)
+{
+ __kfifo_fromio(&adev->trace_fifo, src, len);
+}
+
+void avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len)
+{
+ avs_dump_fw_log(adev, src, len);
+ wake_up(&adev->trace_waitq);
+}