On Thu, Jan 27, 2022 at 03:26:43PM +0100, Thomas Zimmermann wrote:
Hi
Am 26.01.22 um 21:36 schrieb Lucas De Marchi:
In certain situations it's useful to be able to read or write to an
offset that is calculated by having the memory layout given by a struct
declaration. Usually we are going to
Hi
Am 26.01.22 um 21:36 schrieb Lucas De Marchi:
In certain situations it's useful to be able to read or write to an
offset that is calculated by having the memory layout given by a struct
declaration. Usually we are going to read/write a u8, u16, u32 or u64.
Add a pair of macros
On Thu, Jan 27, 2022 at 08:59:36AM +0100, Christian König wrote:
> Am 27.01.22 um 08:36 schrieb Matthew Brost:
> > [SNIP]
> > > >/**
> > > > * dma_buf_map_memcpy_to - Memcpy into dma-buf mapping
> > > > * @dst: The dma-buf mapping structure
> > > > @@ -263,4 +304,44 @@ static
On Thu, Jan 27, 2022 at 08:24:04AM +0100, Christian König wrote:
> Am 26.01.22 um 21:36 schrieb Lucas De Marchi:
> > In certain situations it's useful to be able to read or write to an
> > offset that is calculated by having the memory layout given by a struct
> > declaration. Usually we are going
In certain situations it's useful to be able to read or write to an
offset that is calculated by having the memory layout given by a struct
declaration. Usually we are going to read/write a u8, u16, u32 or u64.
Add a pair of macros dma_buf_map_read_field()/dma_buf_map_write_field()
to calculate
