| Message ID | 20240524161423.15392-3-me@dylanvanassche.be (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | misc: fastrpc: FastRPC reserved memory assignment for SDM845 SLPI | expand |
On 5/24/2024 9:44 PM, 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@dylanvanassche.be> > Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> > --- Reviewed-by: Ekansh Gupta <quic_ekangupt@quicinc.com> > 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 c06667b29055..f53d20e2e07e 100644 > --- a/drivers/misc/fastrpc.c > +++ b/drivers/misc/fastrpc.c > @@ -953,7 +953,10 @@ 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; >
On Fri, May 24, 2024 at 06:14:03PM +0200, 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@dylanvanassche.be> > Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org> > --- > drivers/misc/fastrpc.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index c06667b29055..f53d20e2e07e 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -953,7 +953,10 @@ 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;