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Date: Tue, 1 Nov 2022 14:17:34 +0100
From: Sebastian Fricke <sebastian.fricke@...labora.com>
To: Prasanth Mantena <p-mantena@...com>
Cc: linux-media@...r.kernel.org, kernel@...labora.com,
nas.chung@...psnmedia.com, hverkuil@...all.nl,
ezequiel@...guardiasur.com.ar, linux-kernel@...r.kernel.org,
nicolas.dufresne@...labora.com, p.zabel@...gutronix.de,
dafna@...tmail.com
Subject: Re: [PATCH v10 0/7] Wave5 codec driver
Hey Prasanth,
Thanks for taking a look.
On 31.10.2022 23:52, Prasanth Mantena wrote:
>On 02:04-20221022, Sebastian Fricke wrote:
>> The Wave5 codec driver is a stateful encoder/decoder.
>> It is found on the J721S2 SoC, JH7100 SoC, ssd202d SoC. Etc.
>> But current test report is based on J721S2 SoC and pre-silicon FPGA.
>>
>> The driver currently supports V4L2_PIX_FMT_HEVC, V4L2_PIX_FMT_H264.
>>
>> This driver has so far been tested on J721S2 EVM board and pre-silicon
>> FPGA.
>>
>> Testing on J721S2 EVM board shows it working fine both decoder and
>> encoder.
>> The driver is successfully working with gstreamer v4l2 good-plugin
>> without any modification.
>>
>> # v4l2-compliance -d0
>> Total for wave5-dec device /dev/video0: 44, Succeeded: 44, Failed: 0, Warnings: 0
>>
>> # v4l2-compliance -d1
>> Buffer ioctls:
>> fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-buffers.cpp(610): q.reqbufs(node, 1)
>> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
>> fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-buffers.cpp(753): q.reqbufs(node, 2)
>> test VIDIOC_EXPBUF: FAIL
>> test Requests: OK (Not Supported)
>>
>> Total for wave5-enc device /dev/video1: 44, Succeeded: 42, Failed: 2, Warnings: 2
>>
>> changes since v9:
>>
>> * Move from staging to the media directory
>> * Move coda driver to sub-directory
>>
>> * Fixes:
>> * Use platform_get_irq instead of platform_get_resource to fetch the IRQ
>>
>> * General cleanups:
>> * Add missing error messages to error conditions
>> * Improve messages/variable names/comments, align parameter names across the driver
>> * Use macros instead of magic numbers in multiple occassions
>> * Reduce code duplication in multiple places
>> * Fix whitespace, newline and tab alignment issues
>> * Remove unused struct fields & commented out code
>> * Convert signed integers to unsigned if signed is not necessary
>> * Convert int/unsigned int to s32/u32, when the variable is assigned to the
>> return of a register read or provided as a parameter for a register write
>> (and vice versa)
>> * Fix incorrect bitwise operators where logical operators are appropriate
>> * Multiple smaller changes
>>
>> * Generalization:
>> * Add new helper file providing generalized routines for vpu-dec & vpu-enc
>> * Generalize luma & chroma table size calculation and stride calculation
>>
>> * Resource cleanup and error handling:
>> * Add error handling to all calls with ignored return codes
>> * Handle DMA resource cleanup properly
>> * Fix insufficient instance cleanup while opening dec/enc
>>
>> changes since v8:
>>
>> * add 'wave5' to DEV_NAME
>> * update to support Multi-stream
>> * update to support loop test/dynamic resolution change
>> * remove unnecessary memset, g_volatile, old version option
>>
>> changes since v7:
>>
>> * update v4l2-compliance test report
>> * fix build error on linux-kernel 5.18.0-rc4
>>
>> changes since v6:
>>
>> * update TODO file
>> * get sram info from device tree
>>
>> changes since v5:
>>
>> * support NV12/NV21 pixelformat for encoder and decoder
>> * handle adnormal exit and EOS
>>
>> changes since v4:
>>
>> * refactor functions in wave5-hw and fix bug reported by Daniel Palmer
>> * rename functions and variables to better names
>> * change variable types such as replacing s32 with u32 and int with bool
>> * as appropriate
>>
>> changes since v3:
>>
>> * Fixing all issues commented by Dan Carpenter
>> * Change file names to have wave5- prefix
>> * In wave5_vpu_probe, enable the clocks before reading registers, as
>> * commented from Daniel Palmer
>> * Add more to the TODO list,
>>
>> changes since v2:
>>
>> Main fixes includes:
>> * change the yaml and dirver code to support up to 4 clks (instead of
>> * one)
>> * fix Kconfig format
>> * remove unneeded cast,
>> * change var types
>> * change var names, func names
>> * checkpatch fixes
>>
>> changes since v1:
>>
>> Fix changes due to comments from Ezequiel and Dan Carpenter. Main fixes
>> inclueds:
>> * move all files to one dir 'wave5'
>> * replace private error codes with standard error codes
>> * fix extra spaces
>> * various checkpatch fixes
>> * replace private 'DPRINTK' macro with standard 'dev_err/dbg ..'
>> * fix error handling
>> * add more possible fixes to the TODO file
>>
>
>We see issues with the patchset. The decoder output contains garbage
>data randomly in the image. This is seen more for higher
>resolutions(>=1080p).
Thanks for the highlight, I am currently debugging that issue as well as
an issue found with the encoder, which seems to be present since V9.
I'll try to keep you updated but currently I am not finished with
isolating the issue.
>The gstreamer pipeline for encoder fails with negotiation error as
>stated below.
>
>"vdec 4210000.video-codec: Invalid intra refresh mode: 0 (valid: 1-4)"
Yes, I have noticed this issue as well and it as already fixed in my
local tree, this was a refactoring error.
>
>
>> Dafna Hirschfeld (1):
>> media: chips-media: wave5: Add the vdi layer
>>
>> Nas Chung (3):
>> media: chips-media: wave5: Add vpuapi layer
>> media: chips-media: wave5: Add the v4l2 layer
>> media: chips-media: wave5: Add TODO file
>>
>> Robert Beckett (2):
>> dt-bindings: media: wave5: add yaml devicetree bindings
>> media: chips-media: wave5: Add wave5 driver to maintainers file
>>
>> Sebastian Fricke (1):
>> media: platform: chips-media: Move Coda to separate folder
>>
>> .../devicetree/bindings/media/wave5.yml | 73 +
>> MAINTAINERS | 11 +-
>> drivers/media/platform/chips-media/Kconfig | 18 +-
>> drivers/media/platform/chips-media/Makefile | 6 +-
>> .../media/platform/chips-media/coda/Kconfig | 18 +
>> .../media/platform/chips-media/coda/Makefile | 6 +
>> .../chips-media/{ => coda}/coda-bit.c | 0
>> .../chips-media/{ => coda}/coda-common.c | 0
>> .../chips-media/{ => coda}/coda-gdi.c | 0
>> .../chips-media/{ => coda}/coda-h264.c | 0
>> .../chips-media/{ => coda}/coda-jpeg.c | 0
>> .../chips-media/{ => coda}/coda-mpeg2.c | 0
>> .../chips-media/{ => coda}/coda-mpeg4.c | 0
>> .../platform/chips-media/{ => coda}/coda.h | 0
>> .../chips-media/{ => coda}/coda_regs.h | 0
>> .../chips-media/{ => coda}/imx-vdoa.c | 0
>> .../chips-media/{ => coda}/imx-vdoa.h | 0
>> .../platform/chips-media/{ => coda}/trace.h | 0
>> .../media/platform/chips-media/wave5/Kconfig | 12 +
>> .../media/platform/chips-media/wave5/Makefile | 10 +
>> drivers/media/platform/chips-media/wave5/TODO | 25 +
>> .../platform/chips-media/wave5/wave5-helper.c | 175 +
>> .../platform/chips-media/wave5/wave5-helper.h | 28 +
>> .../platform/chips-media/wave5/wave5-hw.c | 3459 +++++++++++++++++
>> .../chips-media/wave5/wave5-regdefine.h | 654 ++++
>> .../platform/chips-media/wave5/wave5-vdi.c | 261 ++
>> .../platform/chips-media/wave5/wave5-vdi.h | 67 +
>> .../chips-media/wave5/wave5-vpu-dec.c | 1399 +++++++
>> .../chips-media/wave5/wave5-vpu-enc.c | 1454 +++++++
>> .../platform/chips-media/wave5/wave5-vpu.c | 362 ++
>
>io.h is needed for devm_ioremap to work.
Do you mean this?
```
drivers/media/platform/chips-media/wave5/wave5-vpu.c
191: dev->vdb_register = devm_platform_ioremap_resource(pdev, 0);
192- if (IS_ERR(dev->vdb_register))
193- return PTR_ERR(dev->vdb_register);
```
Because there is no `devm_ioremap` function call in the driver.
And the `devm_platform_ioremap_resource`, seems to work just fine.
Any clarification is highly appreciated for this comment.
Sincerely,
Sebastian Fricke
>
>> .../platform/chips-media/wave5/wave5-vpu.h | 72 +
>> .../platform/chips-media/wave5/wave5-vpuapi.c | 1115 ++++++
>> .../platform/chips-media/wave5/wave5-vpuapi.h | 1198 ++++++
>> .../chips-media/wave5/wave5-vpuconfig.h | 90 +
>> .../chips-media/wave5/wave5-vpuerror.h | 454 +++
>> .../media/platform/chips-media/wave5/wave5.h | 94 +
>> 36 files changed, 11040 insertions(+), 21 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/media/wave5.yml
>> create mode 100644 drivers/media/platform/chips-media/coda/Kconfig
>> create mode 100644 drivers/media/platform/chips-media/coda/Makefile
>> rename drivers/media/platform/chips-media/{ => coda}/coda-bit.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-common.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-gdi.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-h264.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-jpeg.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-mpeg2.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda-mpeg4.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda.h (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/coda_regs.h (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/imx-vdoa.c (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/imx-vdoa.h (100%)
>> rename drivers/media/platform/chips-media/{ => coda}/trace.h (100%)
>> create mode 100644 drivers/media/platform/chips-media/wave5/Kconfig
>> create mode 100644 drivers/media/platform/chips-media/wave5/Makefile
>> create mode 100644 drivers/media/platform/chips-media/wave5/TODO
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-helper.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-helper.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-hw.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-regdefine.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vdi.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vdi.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpu.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuapi.c
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuapi.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuconfig.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5-vpuerror.h
>> create mode 100644 drivers/media/platform/chips-media/wave5/wave5.h
>>
>> --
>> 2.25.1
>>
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