On Fri, Mar 24, 2023 at 10:44:58AM +0300, Serge Semin wrote: > Hi Vinod > > On Fri, Mar 24, 2023 at 10:14:14AM +0800, Cai Huoqing wrote: > > Add support for HDMA NATIVE, as long the IP design has set > > the compatible register map parameter-HDMA_NATIVE, > > which allows compatibility for native HDMA register configuration. > > > > The HDMA Hyper-DMA IP is an enhancement of the eDMA embedded-DMA IP. > > And the native HDMA registers are different from eDMA, > > so this patch add support for HDMA NATIVE mode. > > > > HDMA write and read channels operate independently to maximize > > the performance of the HDMA read and write data transfer over > > the link When you configure the HDMA with multiple read channels, > > then it uses a round robin (RR) arbitration scheme to select > > the next read channel to be serviced.The same applies when > > youhave multiple write channels. > > > > The native HDMA driver also supports a maximum of 16 independent > > channels (8 write + 8 read), which can run simultaneously. > > Both SAR (Source Address Register) and DAR (Destination Address Register) > > are aligned to byte. > > > > Cai Huoqing (1): > > dmaengine: dw-edma: Add support for native HDMA > > > > Cai huoqing (3): > > dmaengine: dw-edma: Rename dw_edma_core_ops structure to > > dw_edma_plat_ops > > dmaengine: dw-edma: Create a new dw_edma_core_ops structure to > > abstract controller operation > > dmaengine: dw-edma: Add HDMA DebugFS support > > > > Tested-by: Serge Semin <fancer.lancer@xxxxxxxxx> > > I finished the patchset review and testing. Could you have a look at > the series. If you are ok with what it does please merge in. @Vinod, merge window will supposedly be in the next week. Could you give your resolution about this series? -Serge(y) > > -Serge(y) > > > > > v8->v9: > > [3/4] > > 1.Drop an empty line. > > [4/4] > > 2.Update commit log. > > 3.Remove unused macro > > > > v8 link: > > https://lore.kernel.org/lkml/20230323034944.78357-1-cai.huoqing@xxxxxxxxx/ > > > > drivers/dma/dw-edma/Makefile | 8 +- > > drivers/dma/dw-edma/dw-edma-core.c | 86 ++---- > > drivers/dma/dw-edma/dw-edma-core.h | 58 ++++ > > drivers/dma/dw-edma/dw-edma-pcie.c | 4 +- > > drivers/dma/dw-edma/dw-edma-v0-core.c | 85 +++++- > > drivers/dma/dw-edma/dw-edma-v0-core.h | 14 +- > > drivers/dma/dw-edma/dw-hdma-v0-core.c | 296 +++++++++++++++++++ > > drivers/dma/dw-edma/dw-hdma-v0-core.h | 17 ++ > > drivers/dma/dw-edma/dw-hdma-v0-debugfs.c | 170 +++++++++++ > > drivers/dma/dw-edma/dw-hdma-v0-debugfs.h | 22 ++ > > drivers/dma/dw-edma/dw-hdma-v0-regs.h | 129 ++++++++ > > drivers/pci/controller/dwc/pcie-designware.c | 2 +- > > include/linux/dma/edma.h | 7 +- > > 13 files changed, 807 insertions(+), 91 deletions(-) > > create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-core.c > > create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-core.h > > create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-debugfs.c > > create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-debugfs.h > > create mode 100644 drivers/dma/dw-edma/dw-hdma-v0-regs.h > > > > -- > > 2.34.1 > >
