On Fri, Dec 26, 2025 at 12:35:33PM +0530, Kumari Pallavi wrote: > Implement the new IOVA formatting required by the DSP architecture change > on Kaanapali SoC. Place the SID for DSP DMA transactions at bit 56 in the > physical address. This placement is necessary for the DSPs to correctly > identify streams and operate as intended. > To address this, set SID position to bit 56 via OF matching on the fastrpc > node; otherwise, default to legacy 32-bit placement. > This change ensures consistent SID placement across DSPs. > > Signed-off-by: Kumari Pallavi <[email protected]> > --- > drivers/misc/fastrpc.c | 62 ++++++++++++++++++++++++++++++++++-------- > 1 file changed, 51 insertions(+), 11 deletions(-)
Reviewed-by: Dmitry Baryshkov <[email protected]> -- With best wishes Dmitry
