Re: [PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement
On Fri, Dec 4, 2015 at 5:24 AM, Wang Hongcheng wrote: > Hi all, > > As AMD carrizo UART device is compatible with 8250 and has pl330 DMA > IP, our uart driver is serial:8250 and DMA engines are registered by > driver/dma/pl330. The following patches are made, in order to enable > DMA. > > Firstly, we add an universal ACPI amba glue layer to create an amba > device based on ACPI table. Then we alter 8250/Kconfig to support > AMD 8250 device and add quirk for AMD specific request. > Secondly, since pl330 driver only provides dma engine for platform > devices, we add an acpi dma engine interface. > Then we add a new port type for AMD carrizo and set UART registers > and dma rx size as hardware requirement. > In the end, we make our IOMMU driver to support non-pci device, so > UART DMA really works. > I commented on a few patches, thoughI might miss something in the rest. Include me in Cc list next version. > Thanks, > Hongcheng > > Huang Rui (1): > ACPI: Add support for AMBA bus type > > Wan Zongshun (2): > Documentation: Add ivrs_acpihid kernel parameter description > iommu/amd: Add ACPI HID named devices IOMMU driver support > > Wang Hongcheng (6): > 8250/Kconfig: add config option CONFIG_SERIAL_8250_AMD > ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config > dmaengine: pl330: add new items for pl330 private data > dmaengine: pl330: provide ACPI dmaengine interface > dmaengine:pl330: set segment_boundary_mask = 0c > Serial:8250: New Port Type PORT_AMD_8250 > > Documentation/kernel-parameters.txt | 7 ++ > drivers/acpi/Makefile | 1 + > drivers/acpi/acpi_amba.c| 180 > > drivers/acpi/acpi_apd.c | 89 +++--- > drivers/dma/pl330.c | 61 ++-- > drivers/iommu/amd_iommu.c | 165 + > drivers/iommu/amd_iommu_init.c | 123 +++- > drivers/iommu/amd_iommu_types.h | 11 +++ > drivers/tty/serial/8250/8250_dw.c | 16 > drivers/tty/serial/8250/8250_port.c | 9 ++ > drivers/tty/serial/8250/Kconfig | 8 ++ > include/linux/acpi.h| 30 ++ > include/linux/amba/pl330.h | 4 + > include/linux/serial_8250.h | 4 + > include/uapi/linux/serial_core.h| 3 +- > include/uapi/linux/serial_reg.h | 2 + > 16 files changed, 673 insertions(+), 40 deletions(-) > create mode 100644 drivers/acpi/acpi_amba.c > > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement
On Fri, Dec 4, 2015 at 5:24 AM, Wang Hongchengwrote: > Hi all, > > As AMD carrizo UART device is compatible with 8250 and has pl330 DMA > IP, our uart driver is serial:8250 and DMA engines are registered by > driver/dma/pl330. The following patches are made, in order to enable > DMA. > > Firstly, we add an universal ACPI amba glue layer to create an amba > device based on ACPI table. Then we alter 8250/Kconfig to support > AMD 8250 device and add quirk for AMD specific request. > Secondly, since pl330 driver only provides dma engine for platform > devices, we add an acpi dma engine interface. > Then we add a new port type for AMD carrizo and set UART registers > and dma rx size as hardware requirement. > In the end, we make our IOMMU driver to support non-pci device, so > UART DMA really works. > I commented on a few patches, thoughI might miss something in the rest. Include me in Cc list next version. > Thanks, > Hongcheng > > Huang Rui (1): > ACPI: Add support for AMBA bus type > > Wan Zongshun (2): > Documentation: Add ivrs_acpihid kernel parameter description > iommu/amd: Add ACPI HID named devices IOMMU driver support > > Wang Hongcheng (6): > 8250/Kconfig: add config option CONFIG_SERIAL_8250_AMD > ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config > dmaengine: pl330: add new items for pl330 private data > dmaengine: pl330: provide ACPI dmaengine interface > dmaengine:pl330: set segment_boundary_mask = 0c > Serial:8250: New Port Type PORT_AMD_8250 > > Documentation/kernel-parameters.txt | 7 ++ > drivers/acpi/Makefile | 1 + > drivers/acpi/acpi_amba.c| 180 > > drivers/acpi/acpi_apd.c | 89 +++--- > drivers/dma/pl330.c | 61 ++-- > drivers/iommu/amd_iommu.c | 165 + > drivers/iommu/amd_iommu_init.c | 123 +++- > drivers/iommu/amd_iommu_types.h | 11 +++ > drivers/tty/serial/8250/8250_dw.c | 16 > drivers/tty/serial/8250/8250_port.c | 9 ++ > drivers/tty/serial/8250/Kconfig | 8 ++ > include/linux/acpi.h| 30 ++ > include/linux/amba/pl330.h | 4 + > include/linux/serial_8250.h | 4 + > include/uapi/linux/serial_core.h| 3 +- > include/uapi/linux/serial_reg.h | 2 + > 16 files changed, 673 insertions(+), 40 deletions(-) > create mode 100644 drivers/acpi/acpi_amba.c > > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement
Hi all, As AMD carrizo UART device is compatible with 8250 and has pl330 DMA IP, our uart driver is serial:8250 and DMA engines are registered by driver/dma/pl330. The following patches are made, in order to enable DMA. Firstly, we add an universal ACPI amba glue layer to create an amba device based on ACPI table. Then we alter 8250/Kconfig to support AMD 8250 device and add quirk for AMD specific request. Secondly, since pl330 driver only provides dma engine for platform devices, we add an acpi dma engine interface. Then we add a new port type for AMD carrizo and set UART registers and dma rx size as hardware requirement. In the end, we make our IOMMU driver to support non-pci device, so UART DMA really works. Thanks, Hongcheng Huang Rui (1): ACPI: Add support for AMBA bus type Wan Zongshun (2): Documentation: Add ivrs_acpihid kernel parameter description iommu/amd: Add ACPI HID named devices IOMMU driver support Wang Hongcheng (6): 8250/Kconfig: add config option CONFIG_SERIAL_8250_AMD ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config dmaengine: pl330: add new items for pl330 private data dmaengine: pl330: provide ACPI dmaengine interface dmaengine:pl330: set segment_boundary_mask = 0c Serial:8250: New Port Type PORT_AMD_8250 Documentation/kernel-parameters.txt | 7 ++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_amba.c| 180 drivers/acpi/acpi_apd.c | 89 +++--- drivers/dma/pl330.c | 61 ++-- drivers/iommu/amd_iommu.c | 165 + drivers/iommu/amd_iommu_init.c | 123 +++- drivers/iommu/amd_iommu_types.h | 11 +++ drivers/tty/serial/8250/8250_dw.c | 16 drivers/tty/serial/8250/8250_port.c | 9 ++ drivers/tty/serial/8250/Kconfig | 8 ++ include/linux/acpi.h| 30 ++ include/linux/amba/pl330.h | 4 + include/linux/serial_8250.h | 4 + include/uapi/linux/serial_core.h| 3 +- include/uapi/linux/serial_reg.h | 2 + 16 files changed, 673 insertions(+), 40 deletions(-) create mode 100644 drivers/acpi/acpi_amba.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement
Hi all, As AMD carrizo UART device is compatible with 8250 and has pl330 DMA IP, our uart driver is serial:8250 and DMA engines are registered by driver/dma/pl330. The following patches are made, in order to enable DMA. Firstly, we add an universal ACPI amba glue layer to create an amba device based on ACPI table. Then we alter 8250/Kconfig to support AMD 8250 device and add quirk for AMD specific request. Secondly, since pl330 driver only provides dma engine for platform devices, we add an acpi dma engine interface. Then we add a new port type for AMD carrizo and set UART registers and dma rx size as hardware requirement. In the end, we make our IOMMU driver to support non-pci device, so UART DMA really works. Thanks, Hongcheng Huang Rui (1): ACPI: Add support for AMBA bus type Wan Zongshun (2): Documentation: Add ivrs_acpihid kernel parameter description iommu/amd: Add ACPI HID named devices IOMMU driver support Wang Hongcheng (6): 8250/Kconfig: add config option CONFIG_SERIAL_8250_AMD ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config dmaengine: pl330: add new items for pl330 private data dmaengine: pl330: provide ACPI dmaengine interface dmaengine:pl330: set segment_boundary_mask = 0c Serial:8250: New Port Type PORT_AMD_8250 Documentation/kernel-parameters.txt | 7 ++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_amba.c| 180 drivers/acpi/acpi_apd.c | 89 +++--- drivers/dma/pl330.c | 61 ++-- drivers/iommu/amd_iommu.c | 165 + drivers/iommu/amd_iommu_init.c | 123 +++- drivers/iommu/amd_iommu_types.h | 11 +++ drivers/tty/serial/8250/8250_dw.c | 16 drivers/tty/serial/8250/8250_port.c | 9 ++ drivers/tty/serial/8250/Kconfig | 8 ++ include/linux/acpi.h| 30 ++ include/linux/amba/pl330.h | 4 + include/linux/serial_8250.h | 4 + include/uapi/linux/serial_core.h| 3 +- include/uapi/linux/serial_reg.h | 2 + 16 files changed, 673 insertions(+), 40 deletions(-) create mode 100644 drivers/acpi/acpi_amba.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/