On 27/03/2023 19:42, Dylan Van Assche wrote: > Use fastrpc_remote_heap_alloc to allocate from the FastRPC device > instead of the Compute Bank when the session ID is 0. This ensures > that the allocation is inside the coherent DMA pool which is already > accessible to the DSP. This is necessary to support FastRPC devices > which do not have dedicated Compute Banks such as the SLPI on the SDM845. > The latter uses an allocated CMA region instead of FastRPC Compute Banks. > > Signed-off-by: Dylan Van Assche <me@xxxxxxxxxxxxxxxxx> Reviewed-by: Caleb Connolly <caleb.connolly@xxxxxxxxxx> > --- > drivers/misc/fastrpc.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c > index caf2ae556956..b7ddf6b90022 100644 > --- a/drivers/misc/fastrpc.c > +++ b/drivers/misc/fastrpc.c > @@ -939,7 +939,10 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) > > ctx->msg_sz = pkt_size; > > - err = fastrpc_buf_alloc(ctx->fl, dev, pkt_size, &ctx->buf); > + if (ctx->fl->sctx->sid) > + err = fastrpc_buf_alloc(ctx->fl, dev, pkt_size, &ctx->buf); > + else > + err = fastrpc_remote_heap_alloc(ctx->fl, dev, pkt_size, &ctx->buf); > if (err) > return err; > > -- > 2.39.2 > -- Kind Regards, Caleb
