On Mon, Dec 18, 2023 at 02:18:58PM +1000, Alistair Francis wrote: > On Wed, Nov 22, 2023 at 3:36 PM Ethan Chen via <qemu-devel@nongnu.org> wrote: > > > > This series implements IOPMP specification v1.0.0-draft4 rapid-k model. > > The specification url: > > https://github.com/riscv-non-isa/iopmp-spec/blob/main/riscv_iopmp_specification.pdf > > > > When IOPMP is enabled, a DMA device ATCDMAC300 is added to RISC-V virt > > platform. This DMA device is connected to the IOPMP and has the > > functionalities > > I don't think we want to add an Andes DMA device to the virt machine. > > I can't even find the spec for the ATCDMAC300, which isn't great >
AndeShape ATCDMAC110 data sheet is available on Andes website http://www.andestech.com/en/products-solutions/product-documentation/ ATCDMAC300 is compatible with ATCDMAC110. Thanks, Ethan Chen > > > required by IOPMP, including: > > - Support setup the connection to IOPMP > > - Support asynchronous I/O to handle stall transactions > > - Send transaction information > > > > IOPMP takes a transaction which partially match an entry as a partially hit > > error. The transaction size is depending on source device, destination > > device > > and bus. > > > > Source device can send a transaction_info to IOPMP. IOPMP will check > > partially > > hit by transaction_info. If source device does not send a transaction_info, > > IOPMP checks information in IOMMU and dose not check partially hit. > > > > Changes for v4: > > > > - Add descriptions of IOPMP and ATCDMAC300 > > - Refine coding style and comments > > - config XILINX_AXI does not include file stream.c but selects config > > STREAM > > instead. > > - ATCDMAC300: INT_STATUS is write 1 clear per bit > > Rename iopmp_address_sink to > > transcation_info_sink > > - IOPMP: Refine error message and remove unused variable > > - VIRT: Document new options > > atcdmac300 is only added when iopmp is enabled > > serial setting should not be changed > > > > Ethan Chen (4): > > hw/core: Add config stream > > Add RISC-V IOPMP support > > hw/dma: Add Andes ATCDMAC300 support > > hw/riscv/virt: Add IOPMP support > > > > docs/system/riscv/virt.rst | 11 + > > hw/Kconfig | 1 + > > hw/core/Kconfig | 3 + > > hw/core/meson.build | 2 +- > > hw/dma/Kconfig | 4 + > > hw/dma/atcdmac300.c | 566 ++++++++++ > > hw/dma/meson.build | 1 + > > hw/misc/Kconfig | 4 + > > hw/misc/meson.build | 1 + > > hw/misc/riscv_iopmp.c | 966 ++++++++++++++++++ > > hw/riscv/Kconfig | 2 + > > hw/riscv/virt.c | 65 ++ > > include/hw/dma/atcdmac300.h | 180 ++++ > > include/hw/misc/riscv_iopmp.h | 341 +++++++ > > .../hw/misc/riscv_iopmp_transaction_info.h | 28 + > > include/hw/riscv/virt.h | 10 +- > > 16 files changed, 2183 insertions(+), 2 deletions(-) > > create mode 100644 hw/dma/atcdmac300.c > > create mode 100644 hw/misc/riscv_iopmp.c > > create mode 100644 include/hw/dma/atcdmac300.h > > create mode 100644 include/hw/misc/riscv_iopmp.h > > create mode 100644 include/hw/misc/riscv_iopmp_transaction_info.h > > > > -- > > 2.34.1 > > > >
