Re: [PATCH v5 3/5] media: venus: hfi_plat_v6_lite: Populate decode capabilities

Dikshita Agarwal
2025-07-07T09:29:58Z

On 7/7/2025 2:43 PM, Jorge Ramirez wrote:
> On 27/06/25 19:02:13, Dikshita Agarwal wrote:
>>
>>
>> On 6/26/2025 7:29 PM, Jorge Ramirez-Ortiz wrote:
>>> Add hfi platform file with decoding capabilities for hfi v6_lite.
>>>
>>> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>
>>> ---
>>> drivers/media/platform/qcom/venus/Makefile | 2 +-
>>> .../media/platform/qcom/venus/hfi_platform.c | 2 +
>>> .../media/platform/qcom/venus/hfi_platform.h | 1 +
>>> .../qcom/venus/hfi_platform_v6_lite.c | 148 ++++++++++++++++++
>>> 4 files changed, 152 insertions(+), 1 deletion(-)
>>> create mode 100644 drivers/media/platform/qcom/venus/hfi_platform_v6_lite.c
>>>
>>> diff --git a/drivers/media/platform/qcom/venus/Makefile b/drivers/media/platform/qcom/venus/Makefile
>>> index 91ee6be10292..4a6a942db58b 100644
>>> --- a/drivers/media/platform/qcom/venus/Makefile
>>> +++ b/drivers/media/platform/qcom/venus/Makefile
>>> @@ -5,7 +5,7 @@ venus-core-objs += core.o helpers.o firmware.o \
>>> hfi_venus.o hfi_msgs.o hfi_cmds.o hfi.o \
>>> hfi_parser.o pm_helpers.o dbgfs.o \
>>> hfi_platform.o hfi_platform_v4.o \
>>> - hfi_platform_v6.o hfi_plat_bufs_v6.o \
>>> + hfi_platform_v6.o hfi_plat_bufs_v6.o hfi_platform_v6_lite.o \
>> s/hfi_platform_v6_lite/hfi_platform_v4_lite
>
> will remove, will use platform_v4 instead
>
>>>
>>> venus-dec-objs += vdec.o vdec_ctrls.o
>>> venus-enc-objs += venc.o venc_ctrls.o
>>> diff --git a/drivers/media/platform/qcom/venus/hfi_platform.c b/drivers/media/platform/qcom/venus/hfi_platform.c
>>> index 643e5aa138f5..f56b8f9946d7 100644
>>> --- a/drivers/media/platform/qcom/venus/hfi_platform.c
>>> +++ b/drivers/media/platform/qcom/venus/hfi_platform.c
>>> @@ -13,6 +13,8 @@ const struct hfi_platform *hfi_platform_get(enum hfi_version version)
>>> return &hfi_plat_v4;
>>> case HFI_VERSION_6XX:
>>> return &hfi_plat_v6;
>>> + case HFI_VERSION_6XX_LITE:
>>> + return &hfi_plat_v6_lite;
>> update here as well.
>
> yes, this function wont get changed
>
>>> default:
>>> break;
>>> }
>>> diff --git a/drivers/media/platform/qcom/venus/hfi_platform.h b/drivers/media/platform/qcom/venus/hfi_platform.h
>>> index ec89a90a8129..6356e4bd0de2 100644
>>> --- a/drivers/media/platform/qcom/venus/hfi_platform.h
>>> +++ b/drivers/media/platform/qcom/venus/hfi_platform.h
>>> @@ -58,6 +58,7 @@ struct hfi_platform {
>>>
>>> extern const struct hfi_platform hfi_plat_v4;
>>> extern const struct hfi_platform hfi_plat_v6;
>>> +extern const struct hfi_platform hfi_plat_v6_lite;
>> ditto
>
> neither this one
>
>>>
>>> const struct hfi_platform *hfi_platform_get(enum hfi_version version);
>>> unsigned long hfi_platform_get_codec_vpp_freq(enum hfi_version version, u32 codec,
>>> diff --git a/drivers/media/platform/qcom/venus/hfi_platform_v6_lite.c b/drivers/media/platform/qcom/venus/hfi_platform_v6_lite.c
>>> new file mode 100644
>>> index 000000000000..41958a3e353b
>>> --- /dev/null
>>> +++ b/drivers/media/platform/qcom/venus/hfi_platform_v6_lite.c
>>> @@ -0,0 +1,148 @@
>>> +// SPDX-License-Identifier: GPL-2.0-only
>>> +/*
>>> + * Copyright (c) 2025, The Linux Foundation. All rights reserved.
>>> + */
>>> +#include "hfi_platform.h"
>>> +
>>> +static const struct hfi_plat_caps caps[] = {
>>> +{
>>> + .codec = HFI_VIDEO_CODEC_H264,
>>> + .domain = VIDC_SESSION_TYPE_DEC,
>>> + .caps[0] = {HFI_CAPABILITY_FRAME_WIDTH, 128, 1920, 1},
>>> + .caps[1] = {HFI_CAPABILITY_FRAME_HEIGHT, 128, 1080, 1},
>>> + .caps[2] = {HFI_CAPABILITY_MBS_PER_FRAME, 64, 8160, 1},
>>> + .caps[3] = {HFI_CAPABILITY_BITRATE, 1, 60000000, 1 },
>>> + .caps[4] = {HFI_CAPABILITY_MBS_PER_SECOND, 64, 244800, 1},
>>> + .caps[5] = {HFI_CAPABILITY_FRAMERATE, 1, 120, 1},
>>> + .caps[6] = {HFI_CAPABILITY_MAX_VIDEOCORES, 0, 1, 1},
>>> + .num_caps = 7,
>>> + .pl[0] = {HFI_H264_PROFILE_BASELINE, HFI_H264_LEVEL_1},
>>> + .pl[1] = {HFI_H264_PROFILE_MAIN, HFI_H264_LEVEL_41},
>>> + .pl[2] = {HFI_H264_PROFILE_HIGH, HFI_H264_LEVEL_5},
>>> + .pl[3] = {HFI_H264_PROFILE_CONSTRAINED_BASE, HFI_H264_LEVEL_41},
>>> + .pl[4] = {HFI_H264_PROFILE_CONSTRAINED_HIGH, HFI_H264_LEVEL_41},
>> what is the reference for these values?
>
> what do you mean? what should be the reference? I didnt see a downstream
> equivalente to base on so based on the 4XX settings these seem
> consistent.
>
My question was regarding the profile and level mapping.
The profiles added are consistent with 4xx, I agree. But the value of
levels mapped with each profile is not matching with [1], hence the
question about the reference used for this mapping.

[1]
https://elixir.bootlin.com/linux/v6.16-rc4/source/drivers/media/platform/qcom/venus/hfi_platform_v4.c#L23

Thanks,
Dikshita
> IS there any internal document that you can point me to please?
>
>
>>> + .num_pl = 5,
>>> + .fmts[0] = {HFI_BUFFER_OUTPUT, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[1] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[2] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12},
>>> + .fmts[3] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV21},
>>> + .num_fmts = 4,
>>> +}, {
>>> + .codec = HFI_VIDEO_CODEC_HEVC,
>>> + .domain = VIDC_SESSION_TYPE_DEC,
>>> + .caps[0] = {HFI_CAPABILITY_FRAME_WIDTH, 128, 1920, 1},
>>> + .caps[1] = {HFI_CAPABILITY_FRAME_HEIGHT, 128, 1080, 1},
>>> + .caps[2] = {HFI_CAPABILITY_MBS_PER_FRAME, 64, 8160, 1},
>>> + .caps[3] = {HFI_CAPABILITY_BITRATE, 1, 60000000, 1 },
>>> + .caps[4] = {HFI_CAPABILITY_MBS_PER_SECOND, 64, 244800, 1},
>>> + .caps[5] = {HFI_CAPABILITY_FRAMERATE, 1, 120, 1},
>>> + .caps[6] = {HFI_CAPABILITY_MAX_VIDEOCORES, 0, 1, 1},
>>> + .num_caps = 7,
>>> + .pl[0] = {HFI_HEVC_PROFILE_MAIN, HFI_HEVC_LEVEL_5 | HFI_HEVC_TIER_MAIN},
>>> + .pl[1] = {HFI_HEVC_PROFILE_MAIN10, HFI_HEVC_LEVEL_5 | HFI_HEVC_TIER_MAIN},
>> what is the reference for these values?
>
> same as above.
>
> what internal documents do you typically reference to? Havent seen these
> references in previous commits.
>
> could you clarify please?
>
>
>>> + .num_pl = 2,
>>> + .fmts[0] = {HFI_BUFFER_OUTPUT, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[1] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[2] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12},
>>> + .fmts[3] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV21},
>>> + .num_fmts = 4,
>>> +}, {
>>> + .codec = HFI_VIDEO_CODEC_VP9,
>>> + .domain = VIDC_SESSION_TYPE_DEC,
>>> + .caps[0] = {HFI_CAPABILITY_FRAME_WIDTH, 128, 1920, 1},
>>> + .caps[1] = {HFI_CAPABILITY_FRAME_HEIGHT, 128, 1080, 1},
>>> + .caps[2] = {HFI_CAPABILITY_MBS_PER_FRAME, 64, 8160, 1},
>>> + .caps[3] = {HFI_CAPABILITY_BITRATE, 1, 60000000, 1 },
>>> + .caps[4] = {HFI_CAPABILITY_MBS_PER_SECOND, 64, 244800, 1},
>>> + .caps[5] = {HFI_CAPABILITY_FRAMERATE, 1, 120, 1},
>>> + .caps[6] = {HFI_CAPABILITY_MAX_VIDEOCORES, 0, 1, 1},
>>> + .num_caps = 7,
>>> + .pl[0] = {HFI_VP9_PROFILE_P0, 200},
>>> + .pl[1] = {HFI_VP9_PROFILE_P2_10B, 200},
>>> + .num_pl = 2,
>>> + .fmts[0] = {HFI_BUFFER_OUTPUT, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[1] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12_UBWC},
>>> + .fmts[2] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV12},
>>> + .fmts[3] = {HFI_BUFFER_OUTPUT2, HFI_COLOR_FORMAT_NV21},
>>> + .num_fmts = 4,
>>> +} };
>>> +
>>> +static const struct hfi_plat_caps *get_capabilities(unsigned int *entries)
>>> +{
>>> + *entries = ARRAY_SIZE(caps);
>>> + return caps;
>>> +}
>>> +
>>> +static void get_codecs(u32 *enc_codecs, u32 *dec_codecs, u32 *count)
>>> +{
>>> + *enc_codecs = 0x0;
>>> + *dec_codecs = HFI_VIDEO_CODEC_H264 | HFI_VIDEO_CODEC_HEVC |
>>> + HFI_VIDEO_CODEC_VP9;
>>> + *count = 3;
>>> +}
>>> +
>>> +static const struct hfi_platform_codec_freq_data codec_freq_data[] = {
>>> + { V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_DEC, 440, 0, 440 },
>>> + { V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_DEC, 440, 0, 440 },
>>> + { V4L2_PIX_FMT_VP9, VIDC_SESSION_TYPE_DEC, 440, 0, 440 },
>>> +};
>>> +
>>> +static const struct hfi_platform_codec_freq_data *
>>> +get_codec_freq_data(u32 session_type, u32 pixfmt)
>>> +{
>>> + const struct hfi_platform_codec_freq_data *data = codec_freq_data;
>>> + unsigned int i, data_size = ARRAY_SIZE(codec_freq_data);
>>> + const struct hfi_platform_codec_freq_data *found = NULL;
>>> +
>>> + for (i = 0; i < data_size; i++) {
>>> + if (data[i].pixfmt == pixfmt &&
>>> + data[i].session_type == session_type) {
>>> + found = &data[i];
>>> + break;
>>> + }
>>> + }
>>> +
>>> + return found;
>>> +}
>>> +
>>> +static unsigned long codec_vpp_freq(u32 session_type, u32 codec)
>>> +{
>>> + const struct hfi_platform_codec_freq_data *data;
>>> +
>>> + data = get_codec_freq_data(session_type, codec);
>>> + if (data)
>>> + return data->vpp_freq;
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static unsigned long codec_vsp_freq(u32 session_type, u32 codec)
>>> +{
>>> + const struct hfi_platform_codec_freq_data *data;
>>> +
>>> + data = get_codec_freq_data(session_type, codec);
>>> + if (data)
>>> + return data->vsp_freq;
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +static unsigned long codec_lp_freq(u32 session_type, u32 codec)
>>> +{
>>> + const struct hfi_platform_codec_freq_data *data;
>>> +
>>> + data = get_codec_freq_data(session_type, codec);
>>> + if (data)
>>> + return data->low_power_freq;
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +const struct hfi_platform hfi_plat_v6_lite = {
>>> + .codec_vpp_freq = codec_vpp_freq,
>>> + .codec_vsp_freq = codec_vsp_freq,
>>> + .codec_lp_freq = codec_lp_freq,
>>> + .codecs = get_codecs,
>>> + .capabilities = get_capabilities,
>>> + .bufreq = hfi_plat_bufreq_v6,
>> buffer requirement should come from firmware, pls drop.
>
> yes, this will be hfi_plat_v4 only
>
>>> +};
>>
>> lot of code duplication here, pls see the possibility to commonize the
>>> code.
>
> this file is no longer needed
>
>>
>> Thanks,
>> Dikshita