[V9,3/7] mtk-jpegenc: manage jpegenc multi-hardware
Nicolas Dufresne
nicolas.dufresne at collabora.com
Wed Jun 15 06:59:56 PDT 2022
Le lundi 13 juin 2022 à 11:23 +0800, Irui Wang a écrit :
> From: kyrie wu <kyrie.wu at mediatek.com>
>
> manage each hardware information, including irq/clk/power.
> the hardware includes HW0 and HW1.
>
> Signed-off-by: kyrie wu <kyrie.wu at mediatek.com>
> ---
> drivers/media/platform/mediatek/jpeg/Makefile | 11 +-
> .../platform/mediatek/jpeg/mtk_jpeg_core.c | 78 ++++++---
> .../platform/mediatek/jpeg/mtk_jpeg_core.h | 38 +++++
> .../platform/mediatek/jpeg/mtk_jpeg_enc_hw.c | 160 ++++++++++++++++++
> 4 files changed, 261 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/media/platform/mediatek/jpeg/Makefile b/drivers/media/platform/mediatek/jpeg/Makefile
> index 76c33aad0f3f..69703db4b0a5 100644
> --- a/drivers/media/platform/mediatek/jpeg/Makefile
> +++ b/drivers/media/platform/mediatek/jpeg/Makefile
> @@ -1,6 +1,9 @@
> # SPDX-License-Identifier: GPL-2.0-only
> -mtk_jpeg-objs := mtk_jpeg_core.o \
> +obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o \
> + mtk-jpeg-enc-hw.o
> +
> +mtk_jpeg-y := mtk_jpeg_core.o \
> mtk_jpeg_dec_hw.o \
> - mtk_jpeg_dec_parse.o \
> - mtk_jpeg_enc_hw.o
> -obj-$(CONFIG_VIDEO_MEDIATEK_JPEG) += mtk_jpeg.o
> + mtk_jpeg_dec_parse.o
> +
> +mtk-jpeg-enc-hw-y := mtk_jpeg_enc_hw.o
> diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> index 724fb7aeb0ee..f7a5b971e628 100644
> --- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> +++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
> @@ -680,7 +680,7 @@ static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb)
> {
> struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> struct mtk_jpeg_q_data *q_data = NULL;
> - struct v4l2_plane_pix_format plane_fmt;
> + struct v4l2_plane_pix_format plane_fmt = {};
> int i;
>
> q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type);
> @@ -1312,31 +1312,39 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
> spin_lock_init(&jpeg->hw_lock);
> jpeg->dev = &pdev->dev;
> jpeg->variant = of_device_get_match_data(jpeg->dev);
> - INIT_DELAYED_WORK(&jpeg->job_timeout_work, mtk_jpeg_job_timeout_work);
>
> - jpeg->reg_base = devm_platform_ioremap_resource(pdev, 0);
> - if (IS_ERR(jpeg->reg_base)) {
> - ret = PTR_ERR(jpeg->reg_base);
> - return ret;
> - }
> + if (!jpeg->variant->is_multihw) {
> + INIT_DELAYED_WORK(&jpeg->job_timeout_work,
> + mtk_jpeg_job_timeout_work);
>
> - jpeg_irq = platform_get_irq(pdev, 0);
> - if (jpeg_irq < 0)
> - return jpeg_irq;
> + jpeg->reg_base = devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(jpeg->reg_base)) {
> + ret = PTR_ERR(jpeg->reg_base);
> + return ret;
> + }
>
> - ret = devm_request_irq(&pdev->dev, jpeg_irq,
> - jpeg->variant->irq_handler, 0, pdev->name, jpeg);
> - if (ret) {
> - dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
> - jpeg_irq, ret);
> - goto err_req_irq;
> - }
> + jpeg_irq = platform_get_irq(pdev, 0);
> + if (jpeg_irq < 0)
> + return jpeg_irq;
>
> - ret = devm_clk_bulk_get(jpeg->dev, jpeg->variant->num_clks,
> - jpeg->variant->clks);
> - if (ret) {
> - dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret);
> - goto err_clk_init;
> + ret = devm_request_irq(&pdev->dev,
> + jpeg_irq,
> + jpeg->variant->irq_handler,
> + 0,
> + pdev->name, jpeg);
> + if (ret) {
> + dev_err(&pdev->dev, "Failed to request jpeg_irq %d (%d)\n",
> + jpeg_irq, ret);
> + goto err_req_irq;
> + }
> +
> + ret = devm_clk_bulk_get(jpeg->dev,
> + jpeg->variant->num_clks,
> + jpeg->variant->clks);
> + if (ret) {
> + dev_err(&pdev->dev, "Failed to init clk\n");
> + goto err_clk_init;
> + }
> }
>
> ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
> @@ -1388,6 +1396,14 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, jpeg);
>
> + if (jpeg->variant->is_multihw) {
> + ret = devm_of_platform_populate(&pdev->dev);
> + if (ret) {
> + v4l2_err(&jpeg->v4l2_dev, "Master of platform populate failed.");
> + goto err_vfd_jpeg_register;
> + }
> + }
> +
> pm_runtime_enable(&pdev->dev);
>
> return 0;
> @@ -1497,6 +1513,19 @@ static const struct mtk_jpeg_variant mtk_jpeg_drvdata = {
> .cap_q_default_fourcc = V4L2_PIX_FMT_JPEG,
> };
>
> +static const struct mtk_jpeg_variant mtk8195_jpegenc_drvdata = {
> + .is_multihw = true,
For my undersatanding, is there a link between is_multihw here and
mediatek,jpegenc-multi-core property ? If not, then ignore my comment, otherwise
this would seem redundant, and I would drop the property.
> + .formats = mtk_jpeg_enc_formats,
> + .num_formats = MTK_JPEG_ENC_NUM_FORMATS,
> + .qops = &mtk_jpeg_enc_qops,
> + .m2m_ops = &mtk_jpeg_enc_m2m_ops,
> + .dev_name = "mtk-jpeg-enc",
> + .ioctl_ops = &mtk_jpeg_enc_ioctl_ops,
> + .out_q_default_fourcc = V4L2_PIX_FMT_YUYV,
> + .cap_q_default_fourcc = V4L2_PIX_FMT_JPEG,
> +};
> +
> +#if defined(CONFIG_OF)
> static const struct of_device_id mtk_jpeg_match[] = {
> {
> .compatible = "mediatek,mt8173-jpgdec",
> @@ -1510,10 +1539,15 @@ static const struct of_device_id mtk_jpeg_match[] = {
> .compatible = "mediatek,mtk-jpgenc",
> .data = &mtk_jpeg_drvdata,
> },
> + {
> + .compatible = "mediatek,mt8195-jpgenc",
> + .data = &mtk8195_jpegenc_drvdata,
> + },
> {},
> };
>
> MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
> +#endif
>
> static struct platform_driver mtk_jpeg_driver = {
> .probe = mtk_jpeg_probe,
> diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
> index 3e4811a41ba2..f6e980fde4ef 100644
> --- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
> +++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
> @@ -9,6 +9,7 @@
> #ifndef _MTK_JPEG_CORE_H
> #define _MTK_JPEG_CORE_H
>
> +#include <linux/clk.h>
> #include <linux/interrupt.h>
> #include <media/v4l2-ctrls.h>
> #include <media/v4l2-device.h>
> @@ -60,6 +61,7 @@ enum mtk_jpeg_ctx_state {
> * @cap_q_default_fourcc: capture queue default fourcc
> */
> struct mtk_jpeg_variant {
> + bool is_multihw;
> struct clk_bulk_data *clks;
> int num_clks;
> struct mtk_jpeg_fmt *formats;
> @@ -74,6 +76,39 @@ struct mtk_jpeg_variant {
> u32 cap_q_default_fourcc;
> };
>
> +enum mtk_jpegenc_hw_id {
> + MTK_JPEGENC_HW0,
> + MTK_JPEGENC_HW1,
> + MTK_JPEGENC_HW_MAX,
> +};
> +
> +/**
> + * struct mtk_vcodec_clk - Structure used to store vcodec clock information
> + */
> +struct mtk_jpegenc_clk {
> + struct clk_bulk_data *clks;
> + int clk_num;
> +};
> +
> +/**
> + * struct mtk_jpegenc_comp_dev - JPEG COREX abstraction
> + * @dev: JPEG device
> + * @plat_dev: platform device data
> + * @reg_base: JPEG registers mapping
> + * @master_dev: mtk_jpeg_dev device
> + * @pm: mtk_jpegenc_pm
> + * @jpegenc_irq: jpeg encode irq num
> + */
> +struct mtk_jpegenc_comp_dev {
> + struct device *dev;
> + struct platform_device *plat_dev;
> + void __iomem *reg_base;
> + struct mtk_jpeg_dev *master_dev;
> + struct mtk_jpegenc_clk venc_clk;
> + int jpegenc_irq;
> + int hw_id;
> +};
> +
> /**
> * struct mtk_jpeg_dev - JPEG IP abstraction
> * @lock: the mutex protecting this structure
> @@ -100,6 +135,9 @@ struct mtk_jpeg_dev {
> void __iomem *reg_base;
> struct delayed_work job_timeout_work;
> const struct mtk_jpeg_variant *variant;
> +
> + void __iomem *reg_encbase[MTK_JPEGENC_HW_MAX];
> + struct mtk_jpegenc_comp_dev *enc_hw_dev[MTK_JPEGENC_HW_MAX];
> };
>
> /**
> diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
> index a2b6e1f85c2d..8ac6b031dcd4 100644
> --- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
> +++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
> @@ -5,11 +5,27 @@
> *
> */
>
> +#include <linux/clk.h>
> +#include <linux/interrupt.h>
> +#include <linux/irq.h>
> #include <linux/io.h>
> #include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/slab.h>
> +#include <media/media-device.h>
> #include <media/videobuf2-core.h>
> #include <media/videobuf2-dma-contig.h>
> +#include <media/videobuf2-v4l2.h>
> +#include <media/v4l2-mem2mem.h>
> +#include <media/v4l2-dev.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-fh.h>
> +#include <media/v4l2-event.h>
>
> +#include "mtk_jpeg_core.h"
> #include "mtk_jpeg_enc_hw.h"
>
> static const struct mtk_jpeg_enc_qlt mtk_jpeg_enc_quality[] = {
> @@ -30,6 +46,16 @@ static const struct mtk_jpeg_enc_qlt mtk_jpeg_enc_quality[] = {
> {.quality_param = 97, .hardware_value = JPEG_ENC_QUALITY_Q97},
> };
>
> +#if defined(CONFIG_OF)
> +static const struct of_device_id mtk_jpegenc_drv_ids[] = {
> + {
> + .compatible = "mediatek,mt8195-jpgenc-hw",
> + },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, mtk_jpegenc_drv_ids);
> +#endif
> +
> void mtk_jpeg_enc_reset(void __iomem *base)
> {
> writel(0, base + JPEG_ENC_RSTB);
> @@ -159,3 +185,137 @@ void mtk_jpeg_set_enc_params(struct mtk_jpeg_ctx *ctx, void __iomem *base)
> }
> EXPORT_SYMBOL_GPL(mtk_jpeg_set_enc_params);
>
> +static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
> +{
> + struct vb2_v4l2_buffer *src_buf, *dst_buf;
> + enum vb2_buffer_state buf_state;
> + struct mtk_jpeg_ctx *ctx;
> + u32 result_size;
> + u32 irq_status;
> +
> + struct mtk_jpegenc_comp_dev *jpeg = priv;
> + struct mtk_jpeg_dev *master_jpeg = jpeg->master_dev;
> +
> + irq_status = readl(jpeg->reg_base + JPEG_ENC_INT_STS) &
> + JPEG_ENC_INT_STATUS_MASK_ALLIRQ;
> + if (irq_status)
> + writel(0, jpeg->reg_base + JPEG_ENC_INT_STS);
> + if (!(irq_status & JPEG_ENC_INT_STATUS_DONE))
> + return IRQ_NONE;
> +
> + ctx = v4l2_m2m_get_curr_priv(master_jpeg->m2m_dev);
> + if (!ctx) {
> + v4l2_err(&master_jpeg->v4l2_dev, "Context is NULL\n");
> + return IRQ_HANDLED;
> + }
> +
> + src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
> + dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
> + dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
I would suggest using v4l2_m2m_buf_copy_metadata().
> +
> + result_size = mtk_jpeg_enc_get_file_size(jpeg->reg_base);
> + vb2_set_plane_payload(&dst_buf->vb2_buf, 0, result_size);
> + buf_state = VB2_BUF_STATE_DONE;
> + v4l2_m2m_buf_done(src_buf, buf_state);
> + v4l2_m2m_buf_done(dst_buf, buf_state);
> + v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
> + pm_runtime_put(ctx->jpeg->dev);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static int mtk_jpegenc_hw_init_irq(struct mtk_jpegenc_comp_dev *dev)
> +{
> + struct platform_device *pdev = dev->plat_dev;
> + int ret;
> +
> + dev->jpegenc_irq = platform_get_irq(pdev, 0);
> + if (dev->jpegenc_irq < 0) {
> + dev_err(&pdev->dev, "Failed to get irq resource");
> + return dev->jpegenc_irq;
> + }
> +
> + ret = devm_request_irq(&pdev->dev,
> + dev->jpegenc_irq,
> + mtk_jpegenc_hw_irq_handler,
> + 0,
> + pdev->name, dev);
> + if (ret) {
> + dev_err(&pdev->dev, "Failed to devm_request_irq %d (%d)",
> + dev->jpegenc_irq, ret);
> + return -ENOENT;
> + }
> +
> + return 0;
> +}
> +
> +static int mtk_jpegenc_hw_probe(struct platform_device *pdev)
> +{
> + struct mtk_jpegenc_clk *jpegenc_clk;
> + struct mtk_jpeg_dev *master_dev;
> + struct mtk_jpegenc_comp_dev *dev;
> + int ret;
> +
> + struct device *decs = &pdev->dev;
> +
> + if (!decs->parent)
> + return -EPROBE_DEFER;
> +
> + master_dev = dev_get_drvdata(decs->parent);
> + if (!master_dev)
> + return -EPROBE_DEFER;
> +
> + dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
> + if (!dev)
> + return -ENOMEM;
> +
> + dev->plat_dev = pdev;
> + dev->dev = &pdev->dev;
> +
> + jpegenc_clk = &dev->venc_clk;
> +
> + jpegenc_clk->clk_num = devm_clk_bulk_get_all(&pdev->dev,
> + &jpegenc_clk->clks);
> + if (jpegenc_clk->clk_num < 0)
> + return dev_err_probe(&pdev->dev, jpegenc_clk->clk_num,
> + "Failed to get jpegenc clock count\n");
> +
> + dev->reg_base =
> + devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(dev->reg_base))
> + return PTR_ERR(dev->reg_base);
> +
> + ret = mtk_jpegenc_hw_init_irq(dev);
> + if (ret)
> + return ret;
> +
> + of_property_read_u32(decs->of_node, "mediatek,hw-id",
> + &dev->hw_id);
> +
> + if (dev->hw_id >= 0 || dev->hw_id < MTK_JPEGENC_HW_MAX) {
> + master_dev->enc_hw_dev[dev->hw_id] = dev;
> + master_dev->reg_encbase[dev->hw_id] = dev->reg_base;
> + dev->master_dev = master_dev;
> + } else {
> + return dev_err_probe(&pdev->dev, dev->hw_id,
> + "Invalid hw id\n");
> + }
> +
> + platform_set_drvdata(pdev, dev);
> + pm_runtime_enable(&pdev->dev);
> +
> + return 0;
> +}
> +
> +struct platform_driver mtk_jpegenc_hw_driver = {
> + .probe = mtk_jpegenc_hw_probe,
> + .driver = {
> + .name = "mtk-jpegenc-hw",
> + .of_match_table = of_match_ptr(mtk_jpegenc_drv_ids),
> + },
> +};
> +
> +module_platform_driver(mtk_jpegenc_hw_driver);
> +
> +MODULE_DESCRIPTION("MediaTek JPEG encode HW driver");
> +MODULE_LICENSE("GPL");
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