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[0/5] Rockchip PX30 RGA and VPU support

Message ID 20210107134101.195426-1-paul.kocialkowski@bootlin.com
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Series Rockchip PX30 RGA and VPU support | expand

Message

Paul Kocialkowski Jan. 7, 2021, 1:40 p.m. UTC
This series adds the required bits for RGA and VPU support on the
Rockchip PX30 SoC.

Cheers,

Paul

Paul Kocialkowski (5):
  dt-bindings: media: rockchip-rga: Add PX30 compatible
  arm64: dts: rockchip: Add RGA support to the PX30
  dt-bindings: media: rockchip-vpu: Add PX30 compatible
  arm64: dts: rockchip: Add VPU support for the PX30
  media: hantro: Add support for the Rockchip PX30

 .../bindings/media/rockchip-rga.yaml          |  4 ++-
 .../bindings/media/rockchip-vpu.yaml          | 25 +++++++++-----
 arch/arm64/boot/dts/rockchip/px30.dtsi        | 34 +++++++++++++++++++
 drivers/staging/media/hantro/hantro_drv.c     |  5 +--
 drivers/staging/media/hantro/hantro_hw.h      |  1 +
 drivers/staging/media/hantro/rk3399_vpu_hw.c  | 21 ++++++++++++
 6 files changed, 79 insertions(+), 11 deletions(-)

Comments

Philipp Zabel Jan. 7, 2021, 2:55 p.m. UTC | #1
Hi Paul,

On Thu, 2021-01-07 at 14:40 +0100, Paul Kocialkowski wrote:
> The Rockchip PX30 SoC has a Hantro VPU that features a decoder (VDPU2)
> and an encoder (VEPU2). It is similar to the RK3399's VPU but takes an
> extra clock (SCLK).
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
>  .../bindings/media/rockchip-vpu.yaml          | 25 +++++++++++++------
>  1 file changed, 17 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
> index c81dbc3e8960..c446b9ead21b 100644
> --- a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
> +++ b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml
> @@ -15,10 +15,13 @@ description:
>  
>  properties:
>    compatible:
> -    enum:
> -      - rockchip,rk3288-vpu
> -      - rockchip,rk3328-vpu
> -      - rockchip,rk3399-vpu
> +    oneOf:
> +      - const: rockchip,rk3288-vpu
> +      - const: rockchip,rk3328-vpu
> +      - const: rockchip,rk3399-vpu
> +      - items:
> +        - const: rockchip,px30-vpu
> +        - const: rockchip,rk3399-vpu
>  
>    reg:
>      maxItems: 1
> @@ -35,12 +38,18 @@ properties:
>            - const: vdpu
>  
>    clocks:
> -    maxItems: 2
> +    minItems: 2
> +    maxItems: 3
>  
>    clock-names:
> -    items:
> -      - const: aclk
> -      - const: hclk
> +    oneOf:
> +      - items:
> +        - const: aclk
> +        - const: hclk
> +      - items:
> +        - const: aclk
> +        - const: hclk
> +        - const: sclk

You could make this:

    clock-names:
      minItems: 2
      items:
        - const: aclk
        - const: hclk
        - const: sclk

And then:

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: rockchip,px30-vpu
    then:
      properties:
        clock-names:
          minItems: 3

to make sure each variant has the correct clocks set.

regards
Philipp
Rob Herring (Arm) Jan. 7, 2021, 3:47 p.m. UTC | #2
On Thu, 07 Jan 2021 14:40:57 +0100, Paul Kocialkowski wrote:
> Add a new compatible for the PX30 Rockchip SoC, which also features
> a RGA block. It is compatible with the RK3288 RGA block.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
>  Documentation/devicetree/bindings/media/rockchip-rga.yaml | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:
./Documentation/devicetree/bindings/media/rockchip-rga.yaml:25:13: [warning] wrong indentation: expected 14 but found 12 (indentation)

dtschema/dtc warnings/errors:

See https://patchwork.ozlabs.org/patch/1423299

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.
Ezequiel Garcia Jan. 7, 2021, 7:08 p.m. UTC | #3
Hi Paul,

Happy to see this patch. It was on my TODO list,
but I hadn't had time to bringup my rk3326 device.

A few comments.

On Thu, 2021-01-07 at 14:41 +0100, Paul Kocialkowski wrote:
> The PX30 SoC includes both the VDPU2 and VEPU2 blocks which are similar
> to the RK3399 (Hantro G1/H1 with shuffled registers).
> 
> Besides taking an extra clock, it also shares an interrupt with the IOMMU
> so it's necessary to request the interrupt shared.
> 

Could you clarify on the commit description which iommu device interrupt
line is being shared?

> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
>  drivers/staging/media/hantro/hantro_drv.c    |  5 +++--
>  drivers/staging/media/hantro/hantro_hw.h     |  1 +
>  drivers/staging/media/hantro/rk3399_vpu_hw.c | 21 ++++++++++++++++++++
>  3 files changed, 25 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
> index e5f200e64993..076a7782b476 100644
> --- a/drivers/staging/media/hantro/hantro_drv.c
> +++ b/drivers/staging/media/hantro/hantro_drv.c
> @@ -472,6 +472,7 @@ static const struct v4l2_file_operations hantro_fops = {
>  
>  static const struct of_device_id of_hantro_match[] = {
>  #ifdef CONFIG_VIDEO_HANTRO_ROCKCHIP
> +       { .compatible = "rockchip,px30-vpu", .data = &px30_vpu_variant, },
>         { .compatible = "rockchip,rk3399-vpu", .data = &rk3399_vpu_variant, },
>         { .compatible = "rockchip,rk3328-vpu", .data = &rk3328_vpu_variant, },
>         { .compatible = "rockchip,rk3288-vpu", .data = &rk3288_vpu_variant, },
> @@ -796,8 +797,8 @@ static int hantro_probe(struct platform_device *pdev)
>                         return -ENXIO;
>  
>                 ret = devm_request_irq(vpu->dev, irq,
> -                                      vpu->variant->irqs[i].handler, 0,
> -                                      dev_name(vpu->dev), vpu);
> +                                      vpu->variant->irqs[i].handler,
> +                                      IRQF_SHARED, dev_name(vpu->dev), vpu);

Maybe this irq flag should be part of vpu->variant? It sounds like an IP block
integration specific thing.

Also, you will need a px30-specific interrupt handler now,
since the rk3399 one is not shared-friendly.

>                 if (ret) {
>                         dev_err(vpu->dev, "Could not request %s IRQ.\n",
>                                 irq_name);
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 34c9e4649a25..07f516fd7a2e 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -148,6 +148,7 @@ enum hantro_enc_fmt {
>         RK3288_VPU_ENC_FMT_UYVY422 = 3,
>  };
>  
> +extern const struct hantro_variant px30_vpu_variant;
>  extern const struct hantro_variant rk3399_vpu_variant;
>  extern const struct hantro_variant rk3328_vpu_variant;
>  extern const struct hantro_variant rk3288_vpu_variant;
> diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c
> index 7a7962cf771e..4112f98baa60 100644
> --- a/drivers/staging/media/hantro/rk3399_vpu_hw.c
> +++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c

Perhaps it's time to rename this to rockchip_vpu_hw.c,
and merge rk3288 and rk3399? It's a nitpick, though.

> @@ -220,3 +220,24 @@ const struct hantro_variant rk3328_vpu_variant = {
>         .clk_names = rk3399_clk_names,
>         .num_clocks = ARRAY_SIZE(rk3399_clk_names),
>  };
> +
> +static const char * const px30_clk_names[] = {
> +       "aclk", "hclk", "sclk"
> +};
> +
> +const struct hantro_variant px30_vpu_variant = {
> +       .enc_offset = 0x0,
> +       .enc_fmts = rk3399_vpu_enc_fmts,
> +       .num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),
> +       .dec_offset = 0x400,
> +       .dec_fmts = rk3399_vpu_dec_fmts,
> +       .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
> +       .codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |
> +                HANTRO_VP8_DECODER,
> +       .codec_ops = rk3399_vpu_codec_ops,
> +       .irqs = rk3399_irqs,
> +       .num_irqs = ARRAY_SIZE(rk3399_irqs),
> +       .init = rk3399_vpu_hw_init,
> +       .clk_names = px30_clk_names,
> +       .num_clocks = ARRAY_SIZE(px30_clk_names)
> +};

Thanks,
Ezequiel
Paul Kocialkowski Jan. 8, 2021, 9:05 a.m. UTC | #4
Hi Ezequiel,

On Thu 07 Jan 21, 16:08, Ezequiel Garcia wrote:
> Happy to see this patch. It was on my TODO list,

> but I hadn't had time to bringup my rk3326 device.


Same here, I just had an occasion to use it again these days so I jumped
on it!

> A few comments.

> 

> On Thu, 2021-01-07 at 14:41 +0100, Paul Kocialkowski wrote:

> > The PX30 SoC includes both the VDPU2 and VEPU2 blocks which are similar

> > to the RK3399 (Hantro G1/H1 with shuffled registers).

> > 

> > Besides taking an extra clock, it also shares an interrupt with the IOMMU

> > so it's necessary to request the interrupt shared.

> > 

> 

> Could you clarify on the commit description which iommu device interrupt

> line is being shared?


Sure! It's IRQ 79 of the GIC that's shared with vopl_mmu.
It's not very obvious in the dt commit.

> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

> > ---

> >  drivers/staging/media/hantro/hantro_drv.c    |  5 +++--

> >  drivers/staging/media/hantro/hantro_hw.h     |  1 +

> >  drivers/staging/media/hantro/rk3399_vpu_hw.c | 21 ++++++++++++++++++++

> >  3 files changed, 25 insertions(+), 2 deletions(-)

> > 

> > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c

> > index e5f200e64993..076a7782b476 100644

> > --- a/drivers/staging/media/hantro/hantro_drv.c

> > +++ b/drivers/staging/media/hantro/hantro_drv.c

> > @@ -472,6 +472,7 @@ static const struct v4l2_file_operations hantro_fops = {

> >  

> >  static const struct of_device_id of_hantro_match[] = {

> >  #ifdef CONFIG_VIDEO_HANTRO_ROCKCHIP

> > +       { .compatible = "rockchip,px30-vpu", .data = &px30_vpu_variant, },

> >         { .compatible = "rockchip,rk3399-vpu", .data = &rk3399_vpu_variant, },

> >         { .compatible = "rockchip,rk3328-vpu", .data = &rk3328_vpu_variant, },

> >         { .compatible = "rockchip,rk3288-vpu", .data = &rk3288_vpu_variant, },

> > @@ -796,8 +797,8 @@ static int hantro_probe(struct platform_device *pdev)

> >                         return -ENXIO;

> >  

> >                 ret = devm_request_irq(vpu->dev, irq,

> > -                                      vpu->variant->irqs[i].handler, 0,

> > -                                      dev_name(vpu->dev), vpu);

> > +                                      vpu->variant->irqs[i].handler,

> > +                                      IRQF_SHARED, dev_name(vpu->dev), vpu);

> 

> Maybe this irq flag should be part of vpu->variant? It sounds like an IP block

> integration specific thing.


Ah right, I agree that it would be justified. But it would also be simple to
just fix the irq handlers and assume this can generally be the case, because it
feels like a bit of a detail to justify a flag.

Do you think this could be a safe/workable assumption?

> Also, you will need a px30-specific interrupt handler now,

> since the rk3399 one is not shared-friendly.


Yeah I realize I haven't been very careful there and didn't really check that
the IOMMU driver is really safe to handle shared interrupts either. I'll take
a look a that when crafting v2.

> >                 if (ret) {

> >                         dev_err(vpu->dev, "Could not request %s IRQ.\n",

> >                                 irq_name);

> > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h

> > index 34c9e4649a25..07f516fd7a2e 100644

> > --- a/drivers/staging/media/hantro/hantro_hw.h

> > +++ b/drivers/staging/media/hantro/hantro_hw.h

> > @@ -148,6 +148,7 @@ enum hantro_enc_fmt {

> >         RK3288_VPU_ENC_FMT_UYVY422 = 3,

> >  };

> >  

> > +extern const struct hantro_variant px30_vpu_variant;

> >  extern const struct hantro_variant rk3399_vpu_variant;

> >  extern const struct hantro_variant rk3328_vpu_variant;

> >  extern const struct hantro_variant rk3288_vpu_variant;

> > diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > index 7a7962cf771e..4112f98baa60 100644

> > --- a/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > +++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> 

> Perhaps it's time to rename this to rockchip_vpu_hw.c,

> and merge rk3288 and rk3399? It's a nitpick, though.


Haha, I was thinking the exact same thing but wasn't sure it would be welcome!

I was thinking of rockchip_vpu2_hw.c or rockchip_vdpu2_hw.c since that's
apparently how it's called in Rockchip terminology: VDPU2 and VEPU2 for the
Hantro G1 and H1 with the shuffled register layout. The rk3288 stuff is
probably VDPU1/VEPU1 and we might want to rename it accordingly as well.

Cheers and thanks for the review!

Paul

> > @@ -220,3 +220,24 @@ const struct hantro_variant rk3328_vpu_variant = {

> >         .clk_names = rk3399_clk_names,

> >         .num_clocks = ARRAY_SIZE(rk3399_clk_names),

> >  };

> > +

> > +static const char * const px30_clk_names[] = {

> > +       "aclk", "hclk", "sclk"

> > +};

> > +

> > +const struct hantro_variant px30_vpu_variant = {

> > +       .enc_offset = 0x0,

> > +       .enc_fmts = rk3399_vpu_enc_fmts,

> > +       .num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),

> > +       .dec_offset = 0x400,

> > +       .dec_fmts = rk3399_vpu_dec_fmts,

> > +       .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),

> > +       .codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |

> > +                HANTRO_VP8_DECODER,

> > +       .codec_ops = rk3399_vpu_codec_ops,

> > +       .irqs = rk3399_irqs,

> > +       .num_irqs = ARRAY_SIZE(rk3399_irqs),

> > +       .init = rk3399_vpu_hw_init,

> > +       .clk_names = px30_clk_names,

> > +       .num_clocks = ARRAY_SIZE(px30_clk_names)

> > +};

> 

> Thanks,

> Ezequiel

> 


-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
Heiko Stübner Jan. 8, 2021, 10:48 a.m. UTC | #5
Am Freitag, 8. Januar 2021, 10:05:16 CET schrieb Paul Kocialkowski:
> Hi Ezequiel,

> 

> On Thu 07 Jan 21, 16:08, Ezequiel Garcia wrote:

> > Happy to see this patch. It was on my TODO list,

> > but I hadn't had time to bringup my rk3326 device.

> 

> Same here, I just had an occasion to use it again these days so I jumped

> on it!

> 

> > A few comments.

> > 

> > On Thu, 2021-01-07 at 14:41 +0100, Paul Kocialkowski wrote:

> > > The PX30 SoC includes both the VDPU2 and VEPU2 blocks which are similar

> > > to the RK3399 (Hantro G1/H1 with shuffled registers).

> > > 

> > > Besides taking an extra clock, it also shares an interrupt with the IOMMU

> > > so it's necessary to request the interrupt shared.

> > > 

> > 

> > Could you clarify on the commit description which iommu device interrupt

> > line is being shared?

> 

> Sure! It's IRQ 79 of the GIC that's shared with vopl_mmu.

> It's not very obvious in the dt commit.


Having looked through the docs again, I think that the vopl_mmu using
irq 79 is just a mistake:

(1) in general vop and vop-mmu use the same irq (78 in that case)
(2) Rockchip does seem to have fixed that in their 4.19 tree as well:
https://github.com/rockchip-linux/kernel/blob/develop-4.19/arch/arm64/boot/dts/rockchip/px30.dtsi#L1598

So to me it looks like this doesn't need to be shared and instead
"simply" the px30 dtsi fixed ;-)


Heiko


> > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

> > > ---

> > >  drivers/staging/media/hantro/hantro_drv.c    |  5 +++--

> > >  drivers/staging/media/hantro/hantro_hw.h     |  1 +

> > >  drivers/staging/media/hantro/rk3399_vpu_hw.c | 21 ++++++++++++++++++++

> > >  3 files changed, 25 insertions(+), 2 deletions(-)

> > > 

> > > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c

> > > index e5f200e64993..076a7782b476 100644

> > > --- a/drivers/staging/media/hantro/hantro_drv.c

> > > +++ b/drivers/staging/media/hantro/hantro_drv.c

> > > @@ -472,6 +472,7 @@ static const struct v4l2_file_operations hantro_fops = {

> > >  

> > >  static const struct of_device_id of_hantro_match[] = {

> > >  #ifdef CONFIG_VIDEO_HANTRO_ROCKCHIP

> > > +       { .compatible = "rockchip,px30-vpu", .data = &px30_vpu_variant, },

> > >         { .compatible = "rockchip,rk3399-vpu", .data = &rk3399_vpu_variant, },

> > >         { .compatible = "rockchip,rk3328-vpu", .data = &rk3328_vpu_variant, },

> > >         { .compatible = "rockchip,rk3288-vpu", .data = &rk3288_vpu_variant, },

> > > @@ -796,8 +797,8 @@ static int hantro_probe(struct platform_device *pdev)

> > >                         return -ENXIO;

> > >  

> > >                 ret = devm_request_irq(vpu->dev, irq,

> > > -                                      vpu->variant->irqs[i].handler, 0,

> > > -                                      dev_name(vpu->dev), vpu);

> > > +                                      vpu->variant->irqs[i].handler,

> > > +                                      IRQF_SHARED, dev_name(vpu->dev), vpu);

> > 

> > Maybe this irq flag should be part of vpu->variant? It sounds like an IP block

> > integration specific thing.

> 

> Ah right, I agree that it would be justified. But it would also be simple to

> just fix the irq handlers and assume this can generally be the case, because it

> feels like a bit of a detail to justify a flag.

> 

> Do you think this could be a safe/workable assumption?

> 

> > Also, you will need a px30-specific interrupt handler now,

> > since the rk3399 one is not shared-friendly.

> 

> Yeah I realize I haven't been very careful there and didn't really check that

> the IOMMU driver is really safe to handle shared interrupts either. I'll take

> a look a that when crafting v2.

> 

> > >                 if (ret) {

> > >                         dev_err(vpu->dev, "Could not request %s IRQ.\n",

> > >                                 irq_name);

> > > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h

> > > index 34c9e4649a25..07f516fd7a2e 100644

> > > --- a/drivers/staging/media/hantro/hantro_hw.h

> > > +++ b/drivers/staging/media/hantro/hantro_hw.h

> > > @@ -148,6 +148,7 @@ enum hantro_enc_fmt {

> > >         RK3288_VPU_ENC_FMT_UYVY422 = 3,

> > >  };

> > >  

> > > +extern const struct hantro_variant px30_vpu_variant;

> > >  extern const struct hantro_variant rk3399_vpu_variant;

> > >  extern const struct hantro_variant rk3328_vpu_variant;

> > >  extern const struct hantro_variant rk3288_vpu_variant;

> > > diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > > index 7a7962cf771e..4112f98baa60 100644

> > > --- a/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > > +++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > 

> > Perhaps it's time to rename this to rockchip_vpu_hw.c,

> > and merge rk3288 and rk3399? It's a nitpick, though.

> 

> Haha, I was thinking the exact same thing but wasn't sure it would be welcome!

> 

> I was thinking of rockchip_vpu2_hw.c or rockchip_vdpu2_hw.c since that's

> apparently how it's called in Rockchip terminology: VDPU2 and VEPU2 for the

> Hantro G1 and H1 with the shuffled register layout. The rk3288 stuff is

> probably VDPU1/VEPU1 and we might want to rename it accordingly as well.

> 

> Cheers and thanks for the review!

> 

> Paul

> 

> > > @@ -220,3 +220,24 @@ const struct hantro_variant rk3328_vpu_variant = {

> > >         .clk_names = rk3399_clk_names,

> > >         .num_clocks = ARRAY_SIZE(rk3399_clk_names),

> > >  };

> > > +

> > > +static const char * const px30_clk_names[] = {

> > > +       "aclk", "hclk", "sclk"

> > > +};

> > > +

> > > +const struct hantro_variant px30_vpu_variant = {

> > > +       .enc_offset = 0x0,

> > > +       .enc_fmts = rk3399_vpu_enc_fmts,

> > > +       .num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),

> > > +       .dec_offset = 0x400,

> > > +       .dec_fmts = rk3399_vpu_dec_fmts,

> > > +       .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),

> > > +       .codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |

> > > +                HANTRO_VP8_DECODER,

> > > +       .codec_ops = rk3399_vpu_codec_ops,

> > > +       .irqs = rk3399_irqs,

> > > +       .num_irqs = ARRAY_SIZE(rk3399_irqs),

> > > +       .init = rk3399_vpu_hw_init,

> > > +       .clk_names = px30_clk_names,

> > > +       .num_clocks = ARRAY_SIZE(px30_clk_names)

> > > +};

> > 

> > Thanks,

> > Ezequiel

> > 

> 

>
Heiko Stübner Jan. 8, 2021, 10:49 a.m. UTC | #6
Am Freitag, 8. Januar 2021, 11:48:26 CET schrieb Heiko Stübner:
> Am Freitag, 8. Januar 2021, 10:05:16 CET schrieb Paul Kocialkowski:

> > Hi Ezequiel,

> > 

> > On Thu 07 Jan 21, 16:08, Ezequiel Garcia wrote:

> > > Happy to see this patch. It was on my TODO list,

> > > but I hadn't had time to bringup my rk3326 device.

> > 

> > Same here, I just had an occasion to use it again these days so I jumped

> > on it!

> > 

> > > A few comments.

> > > 

> > > On Thu, 2021-01-07 at 14:41 +0100, Paul Kocialkowski wrote:

> > > > The PX30 SoC includes both the VDPU2 and VEPU2 blocks which are similar

> > > > to the RK3399 (Hantro G1/H1 with shuffled registers).

> > > > 

> > > > Besides taking an extra clock, it also shares an interrupt with the IOMMU

> > > > so it's necessary to request the interrupt shared.

> > > > 

> > > 

> > > Could you clarify on the commit description which iommu device interrupt

> > > line is being shared?

> > 

> > Sure! It's IRQ 79 of the GIC that's shared with vopl_mmu.

> > It's not very obvious in the dt commit.

> 

> Having looked through the docs again, I think that the vopl_mmu using

> irq 79 is just a mistake:

> 

> (1) in general vop and vop-mmu use the same irq (78 in that case)

> (2) Rockchip does seem to have fixed that in their 4.19 tree as well:

> https://github.com/rockchip-linux/kernel/blob/develop-4.19/arch/arm64/boot/dts/rockchip/px30.dtsi#L1598


(3) https://github.com/rockchip-linux/kernel/commit/391a5c5f96d177896f9fe92ca1c83e00f4352191 ;-)

> 

> So to me it looks like this doesn't need to be shared and instead

> "simply" the px30 dtsi fixed ;-)

> 

> 

> Heiko

> 

> 

> > > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

> > > > ---

> > > >  drivers/staging/media/hantro/hantro_drv.c    |  5 +++--

> > > >  drivers/staging/media/hantro/hantro_hw.h     |  1 +

> > > >  drivers/staging/media/hantro/rk3399_vpu_hw.c | 21 ++++++++++++++++++++

> > > >  3 files changed, 25 insertions(+), 2 deletions(-)

> > > > 

> > > > diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c

> > > > index e5f200e64993..076a7782b476 100644

> > > > --- a/drivers/staging/media/hantro/hantro_drv.c

> > > > +++ b/drivers/staging/media/hantro/hantro_drv.c

> > > > @@ -472,6 +472,7 @@ static const struct v4l2_file_operations hantro_fops = {

> > > >  

> > > >  static const struct of_device_id of_hantro_match[] = {

> > > >  #ifdef CONFIG_VIDEO_HANTRO_ROCKCHIP

> > > > +       { .compatible = "rockchip,px30-vpu", .data = &px30_vpu_variant, },

> > > >         { .compatible = "rockchip,rk3399-vpu", .data = &rk3399_vpu_variant, },

> > > >         { .compatible = "rockchip,rk3328-vpu", .data = &rk3328_vpu_variant, },

> > > >         { .compatible = "rockchip,rk3288-vpu", .data = &rk3288_vpu_variant, },

> > > > @@ -796,8 +797,8 @@ static int hantro_probe(struct platform_device *pdev)

> > > >                         return -ENXIO;

> > > >  

> > > >                 ret = devm_request_irq(vpu->dev, irq,

> > > > -                                      vpu->variant->irqs[i].handler, 0,

> > > > -                                      dev_name(vpu->dev), vpu);

> > > > +                                      vpu->variant->irqs[i].handler,

> > > > +                                      IRQF_SHARED, dev_name(vpu->dev), vpu);

> > > 

> > > Maybe this irq flag should be part of vpu->variant? It sounds like an IP block

> > > integration specific thing.

> > 

> > Ah right, I agree that it would be justified. But it would also be simple to

> > just fix the irq handlers and assume this can generally be the case, because it

> > feels like a bit of a detail to justify a flag.

> > 

> > Do you think this could be a safe/workable assumption?

> > 

> > > Also, you will need a px30-specific interrupt handler now,

> > > since the rk3399 one is not shared-friendly.

> > 

> > Yeah I realize I haven't been very careful there and didn't really check that

> > the IOMMU driver is really safe to handle shared interrupts either. I'll take

> > a look a that when crafting v2.

> > 

> > > >                 if (ret) {

> > > >                         dev_err(vpu->dev, "Could not request %s IRQ.\n",

> > > >                                 irq_name);

> > > > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h

> > > > index 34c9e4649a25..07f516fd7a2e 100644

> > > > --- a/drivers/staging/media/hantro/hantro_hw.h

> > > > +++ b/drivers/staging/media/hantro/hantro_hw.h

> > > > @@ -148,6 +148,7 @@ enum hantro_enc_fmt {

> > > >         RK3288_VPU_ENC_FMT_UYVY422 = 3,

> > > >  };

> > > >  

> > > > +extern const struct hantro_variant px30_vpu_variant;

> > > >  extern const struct hantro_variant rk3399_vpu_variant;

> > > >  extern const struct hantro_variant rk3328_vpu_variant;

> > > >  extern const struct hantro_variant rk3288_vpu_variant;

> > > > diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > > > index 7a7962cf771e..4112f98baa60 100644

> > > > --- a/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > > > +++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c

> > > 

> > > Perhaps it's time to rename this to rockchip_vpu_hw.c,

> > > and merge rk3288 and rk3399? It's a nitpick, though.

> > 

> > Haha, I was thinking the exact same thing but wasn't sure it would be welcome!

> > 

> > I was thinking of rockchip_vpu2_hw.c or rockchip_vdpu2_hw.c since that's

> > apparently how it's called in Rockchip terminology: VDPU2 and VEPU2 for the

> > Hantro G1 and H1 with the shuffled register layout. The rk3288 stuff is

> > probably VDPU1/VEPU1 and we might want to rename it accordingly as well.

> > 

> > Cheers and thanks for the review!

> > 

> > Paul

> > 

> > > > @@ -220,3 +220,24 @@ const struct hantro_variant rk3328_vpu_variant = {

> > > >         .clk_names = rk3399_clk_names,

> > > >         .num_clocks = ARRAY_SIZE(rk3399_clk_names),

> > > >  };

> > > > +

> > > > +static const char * const px30_clk_names[] = {

> > > > +       "aclk", "hclk", "sclk"

> > > > +};

> > > > +

> > > > +const struct hantro_variant px30_vpu_variant = {

> > > > +       .enc_offset = 0x0,

> > > > +       .enc_fmts = rk3399_vpu_enc_fmts,

> > > > +       .num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),

> > > > +       .dec_offset = 0x400,

> > > > +       .dec_fmts = rk3399_vpu_dec_fmts,

> > > > +       .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),

> > > > +       .codec = HANTRO_JPEG_ENCODER | HANTRO_MPEG2_DECODER |

> > > > +                HANTRO_VP8_DECODER,

> > > > +       .codec_ops = rk3399_vpu_codec_ops,

> > > > +       .irqs = rk3399_irqs,

> > > > +       .num_irqs = ARRAY_SIZE(rk3399_irqs),

> > > > +       .init = rk3399_vpu_hw_init,

> > > > +       .clk_names = px30_clk_names,

> > > > +       .num_clocks = ARRAY_SIZE(px30_clk_names)

> > > > +};

> > > 

> > > Thanks,

> > > Ezequiel

> > > 

> > 

> > 

> 

>
Ezequiel Garcia Jan. 8, 2021, 1:13 p.m. UTC | #7
On Fri, 2021-01-08 at 10:05 +0100, Paul Kocialkowski wrote:
> Hi Ezequiel,
> 
> On Thu 07 Jan 21, 16:08, Ezequiel Garcia wrote:
> > Happy to see this patch. It was on my TODO list,
> > but I hadn't had time to bringup my rk3326 device.
> 
> Same here, I just had an occasion to use it again these days so I jumped
> on it!
> 
> > A few comments.
> > 
> > On Thu, 2021-01-07 at 14:41 +0100, Paul Kocialkowski wrote:
> > > The PX30 SoC includes both the VDPU2 and VEPU2 blocks which are similar
> > > to the RK3399 (Hantro G1/H1 with shuffled registers).
> > > 
> > > Besides taking an extra clock, it also shares an interrupt with the IOMMU
> > > so it's necessary to request the interrupt shared.
> > > 
> > 
[..]
> > > diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> > > index 34c9e4649a25..07f516fd7a2e 100644
> > > --- a/drivers/staging/media/hantro/hantro_hw.h
> > > +++ b/drivers/staging/media/hantro/hantro_hw.h
> > > @@ -148,6 +148,7 @@ enum hantro_enc_fmt {
> > >         RK3288_VPU_ENC_FMT_UYVY422 = 3,
> > >  };
> > >  
> > > +extern const struct hantro_variant px30_vpu_variant;
> > >  extern const struct hantro_variant rk3399_vpu_variant;
> > >  extern const struct hantro_variant rk3328_vpu_variant;
> > >  extern const struct hantro_variant rk3288_vpu_variant;
> > > diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw.c b/drivers/staging/media/hantro/rk3399_vpu_hw.c
> > > index 7a7962cf771e..4112f98baa60 100644
> > > --- a/drivers/staging/media/hantro/rk3399_vpu_hw.c
> > > +++ b/drivers/staging/media/hantro/rk3399_vpu_hw.c
> > 
> > Perhaps it's time to rename this to rockchip_vpu_hw.c,
> > and merge rk3288 and rk3399? It's a nitpick, though.
> 
> Haha, I was thinking the exact same thing but wasn't sure it would be welcome!
> 
> I was thinking of rockchip_vpu2_hw.c or rockchip_vdpu2_hw.c since that's
> apparently how it's called in Rockchip terminology: VDPU2 and VEPU2 for the
> Hantro G1 and H1 with the shuffled register layout. The rk3288 stuff is
> probably VDPU1/VEPU1 and we might want to rename it accordingly as well.
> 

I'd rather keep it simple as rockchip_vpu_hw.c and just throw in there
all the rockchip stuff.

Thanks,
Ezequiel
Paul Kocialkowski Jan. 11, 2021, 5:20 p.m. UTC | #8
Hi Philipp,

On Thu 07 Jan 21, 15:55, Philipp Zabel wrote:
> Hi Paul,

> 

> On Thu, 2021-01-07 at 14:40 +0100, Paul Kocialkowski wrote:

> > The Rockchip PX30 SoC has a Hantro VPU that features a decoder (VDPU2)

> > and an encoder (VEPU2). It is similar to the RK3399's VPU but takes an

> > extra clock (SCLK).

> > 

> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>

> > ---

> >  .../bindings/media/rockchip-vpu.yaml          | 25 +++++++++++++------

> >  1 file changed, 17 insertions(+), 8 deletions(-)

> > 

> > diff --git a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml

> > index c81dbc3e8960..c446b9ead21b 100644

> > --- a/Documentation/devicetree/bindings/media/rockchip-vpu.yaml

> > +++ b/Documentation/devicetree/bindings/media/rockchip-vpu.yaml

> > @@ -15,10 +15,13 @@ description:

> >  

> >  properties:

> >    compatible:

> > -    enum:

> > -      - rockchip,rk3288-vpu

> > -      - rockchip,rk3328-vpu

> > -      - rockchip,rk3399-vpu

> > +    oneOf:

> > +      - const: rockchip,rk3288-vpu

> > +      - const: rockchip,rk3328-vpu

> > +      - const: rockchip,rk3399-vpu

> > +      - items:

> > +        - const: rockchip,px30-vpu

> > +        - const: rockchip,rk3399-vpu

> >  

> >    reg:

> >      maxItems: 1

> > @@ -35,12 +38,18 @@ properties:

> >            - const: vdpu

> >  

> >    clocks:

> > -    maxItems: 2

> > +    minItems: 2

> > +    maxItems: 3

> >  

> >    clock-names:

> > -    items:

> > -      - const: aclk

> > -      - const: hclk

> > +    oneOf:

> > +      - items:

> > +        - const: aclk

> > +        - const: hclk

> > +      - items:

> > +        - const: aclk

> > +        - const: hclk

> > +        - const: sclk

> 

> You could make this:

> 

>     clock-names:

>       minItems: 2

>       items:

>         - const: aclk

>         - const: hclk

>         - const: sclk

> 

> And then:

> 

> allOf:

>   - if:

>       properties:

>         compatible:

>           contains:

>             const: rockchip,px30-vpu

>     then:

>       properties:

>         clock-names:

>           minItems: 3

> 

> to make sure each variant has the correct clocks set.


Thanks for the suggestion! That's a finer grain that my proposal.

Rob, is there a preference for how this case should be handled?
Here, we want to specify an extra clock for the PX30 case.

Cheers,

Paul

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
Ezequiel Garcia June 21, 2021, 2:57 a.m. UTC | #9
Hi Paul,

On Thu, 2021-01-07 at 14:40 +0100, Paul Kocialkowski wrote:
> This series adds the required bits for RGA and VPU support on the

> Rockchip PX30 SoC.

> 


Do you plan to resend this series?

Alex recently renamed [1] things so some tweaking will be needed,
but it shouldn't be complicated.

[1] https://lore.kernel.org/linux-media/20210614213215.99389-1-knaerzche@gmail.com/

It would be great to have support RK3326 and PX30 :)

Kindly,
Ezequiel