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Message-ID: <1454f153-c04b-6b90-8467-54bb33c6f3fa@xs4all.nl>
Date: Wed, 26 May 2021 11:52:27 +0200
From: Hans Verkuil <hverkuil@...all.nl>
To: Benjamin Gaignard <benjamin.gaignard@...labora.com>,
ezequiel@...labora.com, p.zabel@...gutronix.de, mchehab@...nel.org,
shawnguo@...nel.org, s.hauer@...gutronix.de, festevam@...il.com,
gregkh@...uxfoundation.org, mripard@...nel.org,
paul.kocialkowski@...tlin.com, wens@...e.org,
jernej.skrabec@...l.net, emil.l.velikov@...il.com
Cc: kernel@...gutronix.de, linux-imx@....com,
linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 9/9] media: hantro: IMX8M: add variant for G2/HEVC
codec
On 25/05/2021 18:12, Benjamin Gaignard wrote:
> Add variant to IMX8M to enable G2/HEVC codec.
> Define the capabilities for the hardware up to 3840x2160.
> G2 doesn't have a postprocessor, uses the same clocks and has it
> own interrupt.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
> Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>
> Reviewed-by: Ezequiel Garcia <ezequiel@...labora.com>
> ---
> drivers/staging/media/hantro/hantro_drv.c | 1 +
> drivers/staging/media/hantro/hantro_hw.h | 1 +
> drivers/staging/media/hantro/imx8m_vpu_hw.c | 96 ++++++++++++++++++++-
> 3 files changed, 96 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> index ae8a0037706f..507cd5b454b3 100644
> --- a/drivers/staging/media/hantro/hantro_drv.c
> +++ b/drivers/staging/media/hantro/hantro_drv.c
> @@ -588,6 +588,7 @@ static const struct of_device_id of_hantro_match[] = {
> #endif
> #ifdef CONFIG_VIDEO_HANTRO_IMX8M
> { .compatible = "nxp,imx8mq-vpu", .data = &imx8mq_vpu_variant, },
> + { .compatible = "nxp,imx8mq-vpu-g2", .data = &imx8mq_vpu_g2_variant },
>From checkpatch:
WARNING: DT compatible string "nxp,imx8mq-vpu-g2" appears un-documented -- check ./Documentation/devicetree/bindings/
#29: FILE: drivers/staging/media/hantro/hantro_drv.c:591:
+ { .compatible = "nxp,imx8mq-vpu-g2", .data = &imx8mq_vpu_g2_variant },
Is a patch missing for bindings adding "nxp,imx8mq-vpu-g2"?
Regards,
Hans
> #endif
> #ifdef CONFIG_VIDEO_HANTRO_SAMA5D4
> { .compatible = "microchip,sama5d4-vdec", .data = &sama5d4_vdec_variant, },
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index b743b255bf32..5cc083112017 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -206,6 +206,7 @@ extern const struct hantro_variant rk3328_vpu_variant;
> extern const struct hantro_variant rk3288_vpu_variant;
> extern const struct hantro_variant imx8mq_vpu_variant;
> extern const struct hantro_variant sama5d4_vdec_variant;
> +extern const struct hantro_variant imx8mq_vpu_g2_variant;
>
> extern const struct hantro_postproc_regs hantro_g1_postproc_regs;
>
> diff --git a/drivers/staging/media/hantro/imx8m_vpu_hw.c b/drivers/staging/media/hantro/imx8m_vpu_hw.c
> index 9eb556460e52..ea152e1e6514 100644
> --- a/drivers/staging/media/hantro/imx8m_vpu_hw.c
> +++ b/drivers/staging/media/hantro/imx8m_vpu_hw.c
> @@ -9,6 +9,9 @@
> #include <linux/delay.h>
>
> #include "hantro.h"
> +#include "hantro_jpeg.h"
> +#include "hantro_g1_regs.h"
> +#include "hantro_g2_regs.h"
>
> #define CTRL_SOFT_RESET 0x00
> #define RESET_G1 BIT(1)
> @@ -128,6 +131,62 @@ static const struct hantro_fmt imx8m_vpu_dec_fmts[] = {
> },
> };
>
> +static const struct hantro_fmt imx8m_vpu_g2_dec_fmts[] = {
> + {
> + .fourcc = V4L2_PIX_FMT_NV12,
> + .codec_mode = HANTRO_MODE_NONE,
> + },
> + {
> + .fourcc = V4L2_PIX_FMT_HEVC_SLICE,
> + .codec_mode = HANTRO_MODE_HEVC_DEC,
> + .max_depth = 2,
> + .frmsize = {
> + .min_width = 48,
> + .max_width = 3840,
> + .step_width = MB_DIM,
> + .min_height = 48,
> + .max_height = 2160,
> + .step_height = MB_DIM,
> + },
> + },
> +};
> +
> +static irqreturn_t imx8m_vpu_g1_irq(int irq, void *dev_id)
> +{
> + struct hantro_dev *vpu = dev_id;
> + enum vb2_buffer_state state;
> + u32 status;
> +
> + status = vdpu_read(vpu, G1_REG_INTERRUPT);
> + state = (status & G1_REG_INTERRUPT_DEC_RDY_INT) ?
> + VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
> +
> + vdpu_write(vpu, 0, G1_REG_INTERRUPT);
> + vdpu_write(vpu, G1_REG_CONFIG_DEC_CLK_GATE_E, G1_REG_CONFIG);
> +
> + hantro_irq_done(vpu, state);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static irqreturn_t imx8m_vpu_g2_irq(int irq, void *dev_id)
> +{
> + struct hantro_dev *vpu = dev_id;
> + enum vb2_buffer_state state;
> + u32 status;
> +
> + status = vdpu_read(vpu, HEVC_REG_INTERRUPT);
> + state = (status & HEVC_REG_INTERRUPT_DEC_RDY_INT) ?
> + VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
> +
> + vdpu_write(vpu, 0, HEVC_REG_INTERRUPT);
> + vdpu_write(vpu, HEVC_REG_CONFIG_DEC_CLK_GATE_E, HEVC_REG_CONFIG);
> +
> + hantro_irq_done(vpu, state);
> +
> + return IRQ_HANDLED;
> +}
> +
> static int imx8mq_vpu_hw_init(struct hantro_dev *vpu)
> {
> vpu->ctrl_base = vpu->reg_bases[vpu->variant->num_regs - 1];
> @@ -142,6 +201,13 @@ static void imx8m_vpu_g1_reset(struct hantro_ctx *ctx)
> imx8m_soft_reset(vpu, RESET_G1);
> }
>
> +static void imx8m_vpu_g2_reset(struct hantro_ctx *ctx)
> +{
> + struct hantro_dev *vpu = ctx->dev;
> +
> + imx8m_soft_reset(vpu, RESET_G2);
> +}
> +
> /*
> * Supported codec ops.
> */
> @@ -167,13 +233,25 @@ static const struct hantro_codec_ops imx8mq_vpu_codec_ops[] = {
> },
> };
>
> +static const struct hantro_codec_ops imx8mq_vpu_g2_codec_ops[] = {
> + [HANTRO_MODE_HEVC_DEC] = {
> + .run = hantro_g2_hevc_dec_run,
> + .reset = imx8m_vpu_g2_reset,
> + .init = hantro_hevc_dec_init,
> + .exit = hantro_hevc_dec_exit,
> + },
> +};
> +
> /*
> * VPU variants.
> */
>
> static const struct hantro_irq imx8mq_irqs[] = {
> - { "g1", hantro_g1_irq },
> - { "g2", NULL /* TODO: imx8m_vpu_g2_irq */ },
> + { "g1", imx8m_vpu_g1_irq },
> +};
> +
> +static const struct hantro_irq imx8mq_g2_irqs[] = {
> + { "g2", imx8m_vpu_g2_irq },
> };
>
> static const char * const imx8mq_clk_names[] = { "g1", "g2", "bus" };
> @@ -197,3 +275,17 @@ const struct hantro_variant imx8mq_vpu_variant = {
> .reg_names = imx8mq_reg_names,
> .num_regs = ARRAY_SIZE(imx8mq_reg_names)
> };
> +
> +const struct hantro_variant imx8mq_vpu_g2_variant = {
> + .dec_offset = 0x0,
> + .dec_fmts = imx8m_vpu_g2_dec_fmts,
> + .num_dec_fmts = ARRAY_SIZE(imx8m_vpu_g2_dec_fmts),
> + .codec = HANTRO_HEVC_DECODER,
> + .codec_ops = imx8mq_vpu_g2_codec_ops,
> + .init = imx8mq_vpu_hw_init,
> + .runtime_resume = imx8mq_runtime_resume,
> + .irqs = imx8mq_g2_irqs,
> + .num_irqs = ARRAY_SIZE(imx8mq_g2_irqs),
> + .clk_names = imx8mq_clk_names,
> + .num_clocks = ARRAY_SIZE(imx8mq_clk_names),
> +};
>
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