Re: [Sound-open-firmware] can stream-box size be 0?

On Wed, 2019-04-03 at 15:33 +0200, Guennadi Liakhovetski wrote:

Hi,

In kernel ipc.c I see "if (sdev->stream_box.size == 0)" checks at exactly 4 locations, but all currently supported by SOF platforms set the size to 0x200. Do we need those checks or can we safely assume, that the size is never 0?

The size can depend on FW platform and how much space they allocate for mmap() stream position information. i.e. ALSA can read pipeline stream position stats directly from mailbox rather than via IPC.

Liam

Thanks Guennadi _______________________________________________ Sound-open-firmware mailing list Sound-open-firmware@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/sound-open-firmware