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Re: [Qemu-devel] [PATCH V5 0/8] Xilinx DisplayPort.
From: |
Alistair Francis |
Subject: |
Re: [Qemu-devel] [PATCH V5 0/8] Xilinx DisplayPort. |
Date: |
Wed, 18 Nov 2015 10:43:24 +0530 |
On Mon, Oct 19, 2015 at 1:13 PM, Frederic Konrad
<address@hidden> wrote:
> On 16/10/2015 23:57, Alistair Francis wrote:
>> On Fri, Oct 16, 2015 at 6:41 AM, <address@hidden> wrote:
>>> From: KONRAD Frederic <address@hidden>
>>>
>>> This is the fifth version of this patch-set of the implementation of the
>>> Xilinx
>>> DisplayPort and DPDMA.
>>>
>>> This fifth version moves some headers files to the right directory.
>>>
>>> Second patch introduces an AUX bus needed by the DP to read the DPCD.
>>> It's also possible to connect an I2C device on it to to I2C through AUX
>>> commands. The drivers requires I2C broadcast write to be modeled as well
>>> which
>>> seems to be missing currently upstream.
>>>
>>> The tree can be cloned at:
>>> address@hidden:fkonrad/xilinx_dp.git branch xilinx_dp_v5_release
>> I can't seem to access this, is it public?
>>
>> Thanks,
>>
>> Alistair
> oops, sorry for that.
> Should be ok now.
Great! That works
Thanks,
Alistair
>
> Thanks,
> Fred
>>> Details of the DPDMA part:
>>> * DPDMA is implemented as a QEMU SYSBUS device.
>>> * Interrupts are implemented except the axi error and fifo.
>>>
>>> Details of the XILINX-DP:
>>> * DP is also implemented as a QEMU SYSBUS. Multiple memory regions are
>>> used to
>>> avoid having a single big region as there are holes in the DP memory map.
>>> * An aux-bus has been implemented, it creates a memory map for aux slaves
>>> and
>>> has an i2c bus (which is already implemented in QEMU).
>>> * The normal programmable i2c clock and controller implementation is
>>> missing
>>> from the QEMU tree so the easiest way for us was to implement a dummy-clk
>>> driver in the kernel. It's a clock which does nothing but fakes a clock
>>> such
>>> that the DPDMA driver works. The patch will be send separately.
>>> * The graphic plane works on channel 3, video on channel 0 and audios on
>>> channel 4 and 5.
>>>
>>> Thanks,
>>> Fred
>>>
>>> V4 -> V5 changes:
>>> * aux:
>>> * Move the header include/hw => include/hw/misc
>>> * dpcd:
>>> * Move the header hw/display => include/hw/display
>>> * i2c-ddc:
>>> * Move the header hw/i2c => include/hw/i2c
>>> * xlnx_dpdma:
>>> * Move the header hw/dma => include/hw/dma
>>> * Fix some styles issues.
>>> * xlnx_dp:
>>> * Move the header hw/display => include/hw/display
>>> * globally:
>>> * Rebased on current master (c49d3411faae8ffaab8f7e5db47405a008411c10).
>>>
>>> V3 -> V4 changes:
>>> * xlnx_dpdma:
>>> * Initialize operation_finished during reset.
>>> * Add a function to trigger a VSYNC interrupt from the xlnx_dp.
>>> * xlnx_dp:
>>> * Fix the default pixman format for video buffer.
>>> * Remove unused buffer.
>>> * dpcd:
>>> * Add the missing DPCD_LANE_X_STATUS.
>>> * Set status field for all ports to avoid driver error.
>>> * Use 4 lines by default.
>>> * Use guest error in case of an outbound access.
>>> * i2c broadcast:
>>> * Use a list of device instead of relying on broadcast field to remove
>>> duped
>>> code.
>>> * other:
>>> * rebased on current master (774ee4772b6838b78741ea52d4bf26b8922244c5)
>>>
>>> V2 -> V3 changes:
>>> * dpcd:
>>> * Add a CONFIG_DPCD.
>>> * i2c-ddc:
>>> * Fill in VMSD.
>>> * aux:
>>> * Remove address field.
>>> * Add a CONFIG_AUX.
>>> * dpdma:
>>> * Fill in VMSD.
>>> * Some coding style changes.
>>> * dp:
>>> * Fill in VMSD.
>>> * Coding style changes.
>>>
>>> V1 -> V2 changes:
>>> * xlnx-zynqmp:
>>> * Remove the dummy object_property_add_child(..).
>>> * dpcd:
>>> * Compile only when the ZYNQMP platform is compiled.
>>> * Use qemu_log instead of printf.
>>> * Compile test debug traces.
>>> * Remove the unused current_reg.
>>> * Remove the blank realize.
>>> * Use dpcd_ prefixes instead of aux_ prefixes.
>>> * Add a reset callback.
>>> * Add the VMSD.
>>> * Add size constraint in the MemoryRegionOps structure instead of
>>> asserting.
>>> * Style fixes.
>>> * aux:
>>> * Compile only when the ZYNQMP platform is compiled.
>>> * Remove the class init and the class for aux-slave.
>>> * dpdma:
>>> * Compile only when the ZYNQMP platform is compiled.
>>> * Unify per channel macro in one, simplify the switch case.
>>> * Use extractXX.
>>> * Make DPDMA_GBL an or'ed register.
>>> * dp:
>>> * Compile only when the ZYNQMP platform is compiled.
>>> * Don't look at the audio channel count.
>>> * Use a third pixman plane when we do blending.
>>> * other:
>>> * Drop the useless "console: add qemu_alloc_display_format." patch as
>>> suggested by Gerd.
>>> * Rebase on current master (f3e3b083d4c266ea864ae3c83da49d4086857679).
>>>
>>> KONRAD Frederic (7):
>>> i2cbus: remove unused dev field
>>> introduce aux-bus
>>> i2c: implement broadcast write
>>> introduce dpcd module
>>> introduce xlnx-dpdma
>>> introduce xlnx-dp
>>> arm: xlnx-zynqmp: Add xlnx-dp and xlnx-dpdma
>>>
>>> Peter Maydell (1):
>>> hw/i2c-ddc.c: Implement DDC I2C slave
>>>
>>> default-configs/aarch64-softmmu.mak | 3 +
>>> hw/arm/xlnx-zynqmp.c | 20 +
>>> hw/display/Makefile.objs | 2 +
>>> hw/display/dpcd.c | 171 +++++
>>> hw/display/xlnx_dp.c | 1370
>>> +++++++++++++++++++++++++++++++++++
>>> hw/dma/Makefile.objs | 1 +
>>> hw/dma/xlnx_dpdma.c | 788 ++++++++++++++++++++
>>> hw/i2c/Makefile.objs | 1 +
>>> hw/i2c/core.c | 131 ++--
>>> hw/i2c/i2c-ddc.c | 302 ++++++++
>>> hw/misc/Makefile.objs | 1 +
>>> hw/misc/aux.c | 374 ++++++++++
>>> include/hw/arm/xlnx-zynqmp.h | 5 +
>>> include/hw/display/dpcd.h | 105 +++
>>> include/hw/display/xlnx_dp.h | 110 +++
>>> include/hw/dma/xlnx_dpdma.h | 85 +++
>>> include/hw/i2c/i2c-ddc.h | 36 +
>>> include/hw/misc/aux.h | 125 ++++
>>> 18 files changed, 3575 insertions(+), 55 deletions(-)
>>> create mode 100644 hw/display/dpcd.c
>>> create mode 100644 hw/display/xlnx_dp.c
>>> create mode 100644 hw/dma/xlnx_dpdma.c
>>> create mode 100644 hw/i2c/i2c-ddc.c
>>> create mode 100644 hw/misc/aux.c
>>> create mode 100644 include/hw/display/dpcd.h
>>> create mode 100644 include/hw/display/xlnx_dp.h
>>> create mode 100644 include/hw/dma/xlnx_dpdma.h
>>> create mode 100644 include/hw/i2c/i2c-ddc.h
>>> create mode 100644 include/hw/misc/aux.h
>>>
>>> --
>>> 1.9.0
>>>
>>>
>
>
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Alistair Francis <=