diff options
| author | Joris Verhaegen <verhaegen@google.com> | 2025-09-05 10:12:54 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-09-08 09:33:24 +0200 |
| commit | 2c92e2fbe9e22cefdae87d8a0d654691ee4c1957 (patch) | |
| tree | 0032145739c373c5599212dfadb29eca5b69671e /sound/soc/intel/avs/probes.c | |
| parent | cbd676874e64a2122edd03ba6a2406b24779df05 (diff) | |
ALSA: compress_offload: Add 64-bit safe timestamp infrastructure
The copied_total field in struct snd_compr_tstamp is a 32-bit
value that can overflow on long-running high-bitrate streams,
leading to incorrect calculations for buffer availablility.
This patch adds a 64-bit safe timestamping mechanism.
A new UAPI struct, snd_compr_tstamp64, is added which uses 64-bit
types for byte counters. The relevant ops structures across the
ASoC and core compress code are updated to use this new struct.
ASoC drivers are updated to use u64 counters.
Internal timestamps being u64 now, a compatibility function is added
to convert the 64-bit timestamp back to the 32-bit format for legacy
ioctl callers.
Reviewed-by: Miller Liang <millerliang@google.com>
Tested-by: Joris Verhaegen <verhaegen@google.com>
Signed-off-by: Joris Verhaegen <verhaegen@google.com>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250905091301.2711705-2-verhaegen@google.com
Diffstat (limited to 'sound/soc/intel/avs/probes.c')
| -rw-r--r-- | sound/soc/intel/avs/probes.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/intel/avs/probes.c b/sound/soc/intel/avs/probes.c index a42736b9aa55..b5b4b0754b71 100644 --- a/sound/soc/intel/avs/probes.c +++ b/sound/soc/intel/avs/probes.c @@ -213,7 +213,7 @@ static int avs_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd, } static int avs_probe_compr_pointer(struct snd_compr_stream *cstream, - struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai) + struct snd_compr_tstamp64 *tstamp, struct snd_soc_dai *dai) { struct hdac_ext_stream *host_stream = avs_compr_get_host_stream(cstream); struct snd_soc_pcm_stream *pstream; |