Re: [PATCH] venus: move platform specific data to platform file

From: Stanimir Varbanov
Date: Mon Jul 06 2020 - 11:37:36 EST



On 5/29/20 10:07 AM, Dikshita Agarwal wrote:
> Move all data specific to platform into a separate file.
>
> Signed-off-by: Dikshita Agarwal <dikshita@xxxxxxxxxxxxxx>
> ---
> drivers/media/platform/qcom/venus/Makefile | 3 +-
> drivers/media/platform/qcom/venus/core.c | 20 ++-----------
> drivers/media/platform/qcom/venus/core.h | 10 +------
> drivers/media/platform/qcom/venus/helpers.c | 6 ++--
> .../media/platform/qcom/venus/hfi_platform_data.c | 35 ++++++++++++++++++++++
> .../media/platform/qcom/venus/hfi_platform_data.h | 27 +++++++++++++++++
> drivers/media/platform/qcom/venus/pm_helpers.c | 1 +
> 7 files changed, 73 insertions(+), 29 deletions(-)
> create mode 100644 drivers/media/platform/qcom/venus/hfi_platform_data.c
> create mode 100644 drivers/media/platform/qcom/venus/hfi_platform_data.h
>
> diff --git a/drivers/media/platform/qcom/venus/Makefile b/drivers/media/platform/qcom/venus/Makefile
> index dfc6368..3878bc9 100644
> --- a/drivers/media/platform/qcom/venus/Makefile
> +++ b/drivers/media/platform/qcom/venus/Makefile
> @@ -3,7 +3,8 @@
>
> 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_parser.o pm_helpers.o dbgfs.o \
> + hfi_platform_data.o

Could you shorten to hfi_platform.o

>
> venus-dec-objs += vdec.o vdec_ctrls.o
> venus-enc-objs += venc.o venc_ctrls.o
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index bbb394c..4fde4aa 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -20,6 +20,7 @@
> #include "core.h"
> #include "firmware.h"
> #include "pm_helpers.h"
> +#include "hfi_platform_data.h"
>
> static void venus_event_notify(struct venus_core *core, u32 event)
> {
> @@ -222,6 +223,8 @@ static int venus_probe(struct platform_device *pdev)
> return ret;
> }
>
> + core->hfi_data = venus_get_hfi_platform(core->res->hfi_version);

please make it:

core->hfi_plat = hfi_platform_get(version)

> +
> ret = dma_set_mask_and_coherent(dev, core->res->dma_mask);
> if (ret)
> return ret;
> @@ -461,17 +464,6 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> { 244800, 100000000 }, /* 1920x1080@30 */
> };
>
> -static const struct codec_freq_data sdm845_codec_freq_data[] = {
> - { V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_ENC, 675, 10 },
> - { V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_ENC, 675, 10 },
> - { V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_ENC, 675, 10 },
> - { V4L2_PIX_FMT_MPEG2, VIDC_SESSION_TYPE_DEC, 200, 10 },
> - { V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_DEC, 200, 10 },
> - { V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_DEC, 200, 10 },
> - { V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_DEC, 200, 10 },
> - { V4L2_PIX_FMT_VP9, VIDC_SESSION_TYPE_DEC, 200, 10 },
> -};
> -
> static const struct bw_tbl sdm845_bw_table_enc[] = {
> { 1944000, 1612000, 0, 2416000, 0 }, /* 3840x2160@60 */
> { 972000, 951000, 0, 1434000, 0 }, /* 3840x2160@30 */
> @@ -493,8 +485,6 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> .bw_tbl_enc_size = ARRAY_SIZE(sdm845_bw_table_enc),
> .bw_tbl_dec = sdm845_bw_table_dec,
> .bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
> - .codec_freq_data = sdm845_codec_freq_data,
> - .codec_freq_data_size = ARRAY_SIZE(sdm845_codec_freq_data),
> .clks = {"core", "iface", "bus" },
> .clks_num = 3,
> .vcodec0_clks = { "core", "bus" },
> @@ -516,8 +506,6 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> .bw_tbl_enc_size = ARRAY_SIZE(sdm845_bw_table_enc),
> .bw_tbl_dec = sdm845_bw_table_dec,
> .bw_tbl_dec_size = ARRAY_SIZE(sdm845_bw_table_dec),
> - .codec_freq_data = sdm845_codec_freq_data,
> - .codec_freq_data_size = ARRAY_SIZE(sdm845_codec_freq_data),
> .clks = {"core", "iface", "bus" },
> .clks_num = 3,
> .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> @@ -562,8 +550,6 @@ static __maybe_unused int venus_runtime_resume(struct device *dev)
> .bw_tbl_enc_size = ARRAY_SIZE(sc7180_bw_table_enc),
> .bw_tbl_dec = sc7180_bw_table_dec,
> .bw_tbl_dec_size = ARRAY_SIZE(sc7180_bw_table_dec),
> - .codec_freq_data = sdm845_codec_freq_data,
> - .codec_freq_data_size = ARRAY_SIZE(sdm845_codec_freq_data),
> .clks = {"core", "iface", "bus" },
> .clks_num = 3,
> .vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
> index 82438f1..86dc443 100644
> --- a/drivers/media/platform/qcom/venus/core.h
> +++ b/drivers/media/platform/qcom/venus/core.h
> @@ -34,13 +34,6 @@ struct reg_val {
> u32 value;
> };
>
> -struct codec_freq_data {
> - u32 pixfmt;
> - u32 session_type;
> - unsigned long vpp_freq;
> - unsigned long vsp_freq;
> -};
> -
> struct bw_tbl {
> u32 mbs_per_sec;
> u32 avg;
> @@ -59,8 +52,6 @@ struct venus_resources {
> unsigned int bw_tbl_dec_size;
> const struct reg_val *reg_tbl;
> unsigned int reg_tbl_size;
> - const struct codec_freq_data *codec_freq_data;
> - unsigned int codec_freq_data_size;
> const char * const clks[VIDC_CLKS_NUM_MAX];
> unsigned int clks_num;
> const char * const vcodec0_clks[VIDC_VCODEC_CLKS_NUM_MAX];
> @@ -176,6 +167,7 @@ struct venus_core {
> bool sys_error;
> const struct hfi_core_ops *core_ops;
> const struct venus_pm_ops *pm_ops;
> + const struct venus_hfi_platform_data *hfi_data;

could you rename this to:

const struct hfi_platform *hfi_plat;

> struct mutex pm_lock;
> unsigned long enc_codecs;
> unsigned long dec_codecs;
> diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
> index 115a9a2..62d1197 100644
> --- a/drivers/media/platform/qcom/venus/helpers.c
> +++ b/drivers/media/platform/qcom/venus/helpers.c
> @@ -14,6 +14,7 @@
> #include "helpers.h"
> #include "hfi_helper.h"
> #include "pm_helpers.h"
> +#include "hfi_platform_data.h"
>
> struct intbuf {
> struct list_head list;
> @@ -811,8 +812,9 @@ int venus_helper_init_codec_freq_data(struct venus_inst *inst)
> if (!IS_V4(inst->core))
> return 0;
>
> - data = inst->core->res->codec_freq_data;
> - data_size = inst->core->res->codec_freq_data_size;
> + data = inst->core->hfi_data->codec_freq_data;
> + data_size = inst->core->hfi_data->codec_freq_data_size;
> +

This doesn't look right. The venus_helper knows details of how to init
codec data. I think this initialization should be made by hfi_platform.

> pixfmt = inst->session_type == VIDC_SESSION_TYPE_DEC ?
> inst->fmt_out->pixfmt : inst->fmt_cap->pixfmt;
>
> diff --git a/drivers/media/platform/qcom/venus/hfi_platform_data.c b/drivers/media/platform/qcom/venus/hfi_platform_data.c
> new file mode 100644
> index 0000000..9d9035f
> --- /dev/null
> +++ b/drivers/media/platform/qcom/venus/hfi_platform_data.c
> @@ -0,0 +1,35 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2020, The Linux Foundation. All rights reserved.
> + */
> +#include "hfi_platform_data.h"
> +#include "core.h"
> +
> +static struct codec_freq_data hfi4_codec_freq_data[] = {
> +{ V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_ENC, 675, 10 },

fix the identation

> + { V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_ENC, 675, 10 },
> + { V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_ENC, 675, 10 },
> + { V4L2_PIX_FMT_MPEG2, VIDC_SESSION_TYPE_DEC, 200, 10 },
> + { V4L2_PIX_FMT_H264, VIDC_SESSION_TYPE_DEC, 200, 10 },
> + { V4L2_PIX_FMT_HEVC, VIDC_SESSION_TYPE_DEC, 200, 10 },
> + { V4L2_PIX_FMT_VP8, VIDC_SESSION_TYPE_DEC, 200, 10 },
> + { V4L2_PIX_FMT_VP9, VIDC_SESSION_TYPE_DEC, 200, 10 },
> +};
> +
> +static const struct venus_hfi_platform_data hfi4_data = {
> + .codec_freq_data = hfi4_codec_freq_data,
> + .codec_freq_data_size = ARRAY_SIZE(hfi4_codec_freq_data),
> +};
> +
> +const struct venus_hfi_platform_data *venus_get_hfi_platform
> + (enum hfi_version version)

It would be better to have:

struct hfi_platform *hfi_platform_get(version)

and all functions in hfi_platform.c should be prefixed with hfi_platform_xxx

> +{
> + switch (version) {
> + case HFI_VERSION_4XX:
> + return &hfi4_data;

s/hfi4_data/hfi_data_v4/

this is the style for the whole driver please follow it (see
pm-helpers.c for example).

> + default:
> + return NULL;
> + }
> + return NULL;
> +}
> +
> diff --git a/drivers/media/platform/qcom/venus/hfi_platform_data.h b/drivers/media/platform/qcom/venus/hfi_platform_data.h
> new file mode 100644
> index 0000000..1b4bfb6
> --- /dev/null
> +++ b/drivers/media/platform/qcom/venus/hfi_platform_data.h
> @@ -0,0 +1,27 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * Copyright (c) 2020, The Linux Foundation. All rights reserved.
> + */
> +
> +#ifndef __HFI_PLATFORM_DATA_H__
> +#define __HFI_PLATFORM_DATA_H__

just __HFI_PLATFORM_H__ please.

we will have hfi_platform function pointers too.

> +
> +#include "core.h"
> +
> +struct codec_freq_data {
> + u32 pixfmt;
> + u32 session_type;
> + unsigned long vpp_freq;
> + unsigned long vsp_freq;
> +};
> +
> +struct venus_hfi_platform_data {

please rename to hfi_platform

> + const struct codec_freq_data *codec_freq_data;
> + unsigned int codec_freq_data_size;
> +};
> +
> +const struct venus_hfi_platform_data *venus_get_hfi_platform
> + (enum hfi_version version);
> +
> +#endif
> +
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index f33fc70..4ed5689 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -17,6 +17,7 @@
> #include "hfi_parser.h"
> #include "hfi_venus_io.h"
> #include "pm_helpers.h"
> +#include "hfi_platform_data.h"

s/hfi_platform_data.h/hfi_platform.h/


--
regards,
Stan