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    SubjectRe: Phyr Starter
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    Hi

    Am 11.01.22 um 14:56 schrieb Matthew Wilcox:
    > On Tue, Jan 11, 2022 at 12:40:10PM +0100, Thomas Zimmermann wrote:
    >> Hi
    >>
    >> Am 10.01.22 um 20:34 schrieb Matthew Wilcox:
    >>> TLDR: I want to introduce a new data type:
    >>>
    >>> struct phyr {
    >>> phys_addr_t addr;
    >>> size_t len;
    >>> };
    >>
    >> Did you look at struct dma_buf_map? [1]
    >
    > Thanks. I wasn't aware of that. It doesn't seem to actually solve the
    > problem, in that it doesn't carry any length information. Did you mean
    > to point me at a different structure?
    >

    It's the structure I meant. It refers to a buffer, so the length could
    be added. For something more sophisticated, dma_buf_map could be changed
    to distinguish between the buffer and an iterator pointing into the buffer.

    But if it's really different, then so be it.

    Best regards
    Thomas

    --
    Thomas Zimmermann
    Graphics Driver Developer
    SUSE Software Solutions Germany GmbH
    Maxfeldstr. 5, 90409 Nürnberg, Germany
    (HRB 36809, AG Nürnberg)
    Geschäftsführer: Ivo Totev
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