On 23/02/2026 20:09, Ekansh Gupta wrote: > Add a DRM_QDA_MAP ioctl and supporting FastRPC plumbing to map GEM > backed buffers into the DSP virtual address space. The new > qda_mem_map UAPI structure allows userspace to request legacy MMAP > style mappings or handle-based MEM_MAP mappings with attributes, and > encodes flags, offsets and optional virtual address hints that are > forwarded to the DSP. > > On the FastRPC side new method identifiers FASTRPC_RMID_INIT_MMAP > and FASTRPC_RMID_INIT_MEM_MAP are introduced together with message > structures for map requests and responses. The fastrpc_prepare_args > path is extended to build the appropriate request headers, serialize > the physical page information derived from a GEM object into a > fastrpc_phy_page array and pack the arguments into the shared message > buffer used by the existing invoke infrastructure. > > The qda_ioctl_mmap() handler dispatches mapping requests based on the > qda_mem_map request type, reusing the generic fastrpc_invoke() > machinery and the RPMsg transport to communicate with the DSP. This > provides the foundation for explicit buffer mapping into the DSP > address space for subsequent FastRPC calls, aligned with the > traditional FastRPC user space model. > > Signed-off-by: Ekansh Gupta <[email protected]> > --- > arch/arm64/configs/defconfig | 2 +
Not relevan there. Don't stuff other subsystem code into your patches. Especially without any reasons (your commit msg must explain WHY you are doing things). > drivers/accel/qda/qda_drv.c | 1 + > drivers/accel/qda/qda_fastrpc.c | 217 > ++++++++++++++++++++++++++++++++++++++++ > drivers/accel/qda/qda_fastrpc.h | 64 ++++++++++++ > drivers/accel/qda/qda_ioctl.c | 24 +++++ > drivers/accel/qda/qda_ioctl.h | 13 +++ > include/uapi/drm/qda_accel.h | 44 +++++++- > 7 files changed, 364 insertions(+), 1 deletion(-) > Best regards, Krzysztof
