On 19 5月 23 23:06:00, Vinod Koul wrote: > On 19-05-23, 21:39, Cai Huoqing wrote: > > On 19 5月 23 16:57:06, Vinod Koul wrote: > > > On 17-05-23, 11:01, 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 > > > > > > You should have a single name for all these patches :-( > > > > Hi Vinod, > > > > Thanks for your reply. > > > > Do you mean patch[0/4] and patch[3/4] shouldn't have the same name? > > It should be Cai Huoqing or Cai huoqing not both :-) Sorry, My mistake :-) I resend v11 here: https://lore.kernel.org/lkml/20230520050854.73160-1-cai.huoqing@xxxxxxxxx/ thanks, Cai- > > > > > Thanks, > > Cai- > > > > > > > > > > > Tested-by: Serge Semin <fancer.lancer@xxxxxxxxx> > > > > > > > > v9->v10: > > > > 1.Update commit log. > > > > 2.rebase for dma-next > > > > > > > > v9 link: > > > > https://lore.kernel.org/lkml/20230413033156.93751-1-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 > > > > > > -- > > > ~Vinod > > -- > ~Vinod
