ASoC: Intel: avs: Drop usage of debug members in non-debug code

Switch to debug-context aware wrappers instead of accessing debug
members directly allowing for readable separation of debug and non-debug
related code. Duplicates are removed along the way.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20221202152841.672536-9-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/avs/apl.c

@@ -59,21 +59,18 @@ static int apl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg
 
 	memcpy_fromio(&layout, addr, sizeof(layout));
 
-	if (!kfifo_initialized(&adev->dbg.trace_fifo))
+	if (!avs_logging_fw(adev))
 		/* consume the logs regardless of consumer presence */
 		goto update_read_ptr;
 
 	buf = apl_log_payload_addr(addr);
 
 	if (layout.read_ptr > layout.write_ptr) {
-		__kfifo_fromio(&adev->dbg.trace_fifo, buf + layout.read_ptr,
+		avs_dump_fw_log(adev, buf + layout.read_ptr,
-			       apl_log_payload_size(adev) - layout.read_ptr);
+				apl_log_payload_size(adev) - layout.read_ptr);
 		layout.read_ptr = 0;
 	}
-	__kfifo_fromio(&adev->dbg.trace_fifo, buf + layout.read_ptr,
+	avs_dump_fw_log_wakeup(adev, buf + layout.read_ptr, layout.write_ptr - layout.read_ptr);
-		       layout.write_ptr - layout.read_ptr);
-
-	wake_up(&adev->dbg.trace_waitq);
 
 update_read_ptr:
 	writel(layout.write_ptr, addr);

sound/soc/intel/avs/avs.h

@@ -94,15 +94,6 @@ struct avs_fw_entry {
 	struct list_head node;
 };
 
-struct avs_debug {
-	struct kfifo trace_fifo;
-	spinlock_t trace_lock;	/* serialize debug window I/O between each LOG_BUFFER_STATUS */
-	wait_queue_head_t trace_waitq;
-	u32 aging_timer_period;
-	u32 fifo_full_timer_period;
-	u32 logged_resources;	/* context dependent: core or library */
-};
-
 /*
  * struct avs_dev - Intel HD-Audio driver data
  *
@@ -146,7 +137,6 @@ struct avs_dev {
 	spinlock_t path_list_lock;
 	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;
@@ -339,8 +329,6 @@ void avs_unregister_all_boards(struct avs_dev *adev);
 
 /* Firmware tracing helpers */
 
-unsigned int __kfifo_fromio(struct kfifo *fifo, const void __iomem *src, unsigned int len);
-
 #define avs_log_buffer_size(adev) \
 	((adev)->fw_cfg.trace_log_bytes / (adev)->hw_cfg.dsp_cores)
 
@@ -356,9 +344,9 @@ static inline int avs_log_buffer_status_locked(struct avs_dev *adev, union avs_n
 	unsigned long flags;
 	int ret;
 
-	spin_lock_irqsave(&adev->dbg.trace_lock, flags);
+	spin_lock_irqsave(&adev->trace_lock, flags);
 	ret = avs_dsp_op(adev, log_buffer_status, msg);
-	spin_unlock_irqrestore(&adev->dbg.trace_lock, flags);
+	spin_unlock_irqrestore(&adev->trace_lock, flags);
 
 	return ret;
 }

sound/soc/intel/avs/debugfs.c

@@ -11,6 +11,24 @@
 #include <linux/wait.h>
 #include "avs.h"
 
+static unsigned int __kfifo_fromio(struct kfifo *fifo, const void __iomem *src, unsigned int len)
+{
+	struct __kfifo *__fifo = &fifo->kfifo;
+	unsigned int l, off;
+
+	len = min(len, kfifo_avail(fifo));
+	off = __fifo->in & __fifo->mask;
+	l = min(len, kfifo_size(fifo) - off);
+
+	memcpy_fromio(__fifo->data + off, src, l);
+	memcpy_fromio(__fifo->data, src + l, len - l);
+	/* Make sure data copied from SRAM is visible to all CPUs. */
+	smp_mb();
+	__fifo->in += len;
+
+	return len;
+}
+
 bool avs_logging_fw(struct avs_dev *adev)
 {
 	return kfifo_initialized(&adev->trace_fifo);

sound/soc/intel/avs/skl.c

@@ -59,7 +59,7 @@ skl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg)
 	void __iomem *buf;
 	u16 size, write, offset;
 
-	if (!kfifo_initialized(&adev->dbg.trace_fifo))
+	if (!avs_logging_fw(adev))
 		return 0;
 
 	size = avs_log_buffer_size(adev) / 2;
@@ -69,8 +69,7 @@ skl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg)
 
 	/* Address is guaranteed to exist in SRAM2. */
 	buf = avs_log_buffer_addr(adev, msg->log.core) + offset;
-	__kfifo_fromio(&adev->dbg.trace_fifo, buf, size);
+	avs_dump_fw_log_wakeup(adev, buf, size);
-	wake_up(&adev->dbg.trace_waitq);
 
 	return 0;
 }

sound/soc/intel/avs/utils.c

@@ -300,21 +300,3 @@ void avs_release_firmwares(struct avs_dev *adev)
 		kfree(entry);
 	}
 }
-
-unsigned int __kfifo_fromio(struct kfifo *fifo, const void __iomem *src, unsigned int len)
-{
-	struct __kfifo *__fifo = &fifo->kfifo;
-	unsigned int l, off;
-
-	len = min(len, kfifo_avail(fifo));
-	off = __fifo->in & __fifo->mask;
-	l = min(len, kfifo_size(fifo) - off);
-
-	memcpy_fromio(__fifo->data + off, src, l);
-	memcpy_fromio(__fifo->data, src + l, len - l);
-	/* Make sure data copied from SRAM is visible to all CPUs. */
-	smp_mb();
-	__fifo->in += len;
-
-	return len;
-}