From 34d27c71707c4ed615105376e0f3907d99b1b271 Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Fri, 2 Dec 2022 16:28:39 +0100 Subject: [PATCH] ASoC: Intel: avs: Gather remaining logs on strace_release() When user closes the tracer, some logs may still remain in the tail of the buffer as firmware sends LOG_BUFFER_STATUS notification only when certain threshold of data is reached. Add whatever is left to already gathered logs so no information is lost. Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20221202152841.672536-15-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- sound/soc/intel/avs/debugfs.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/sound/soc/intel/avs/debugfs.c b/sound/soc/intel/avs/debugfs.c index 678572ee6b9d..e7b0b99824aa 100644 --- a/sound/soc/intel/avs/debugfs.c +++ b/sound/soc/intel/avs/debugfs.c @@ -201,11 +201,25 @@ static int strace_open(struct inode *inode, struct file *file) static int strace_release(struct inode *inode, struct file *file) { + union avs_notify_msg msg = AVS_NOTIFICATION(LOG_BUFFER_STATUS); struct avs_dev *adev = file->private_data; - unsigned long flags; + unsigned long resource_mask; + unsigned long flags, i; + u32 num_cores; + + resource_mask = adev->logged_resources; + num_cores = adev->hw_cfg.dsp_cores; spin_lock_irqsave(&adev->trace_lock, flags); + + /* Gather any remaining logs. */ + for_each_set_bit(i, &resource_mask, num_cores) { + msg.log.core = i; + avs_dsp_op(adev, log_buffer_status, &msg); + } + kfifo_free(&adev->trace_fifo); + spin_unlock_irqrestore(&adev->trace_lock, flags); return 0; -- 2.34.1