linux-kernel - Re: [PATCH 2/3] media: rkisp1: debug: Add register dump for IS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4881112.31r3eYUQgx@steina-w>
Date:   Thu, 30 Nov 2023 10:54:46 +0100
From:   Alexander Stein <alexander.stein@...tq-group.com>
To:     Kieran Bingham <kieran.bingham@...asonboard.com>,
        Paul Elder <paul.elder@...asonboard.com>
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        tomi.valkeinen@...asonboard.com, umang.jain@...asonboard.com,
        Dafna Hirschfeld <dafna@...tmail.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] media: rkisp1: debug: Add register dump for IS

Hi Paul,

Am Donnerstag, 30. November 2023, 10:47:00 CET schrieb Paul Elder:
> On Wed, Nov 29, 2023 at 08:05:42PM +0000, Kieran Bingham wrote:
> > Quoting Paul Elder (2023-11-29 09:29:55)
> > 
> > > Add register dump for the image stabilizer module to debugfs.
> > 
> > Is the Image Stabilizer on all variants of the ISP?
> > 
> > I.e. is it valid register space on the RK3399 implementation?
> 
> Yes, it is.

Is there some public documentation available how this ISP works? For RK3399 or 
i.MX8MP.

Best regards,
Alexander

> 
> > If so then:
> > Reviewed-by: Kieran Bingham <kieran.bingham@...asonboard.com>
> > 
> > > Signed-off-by: Paul Elder <paul.elder@...asonboard.com>
> > > ---
> > > 
> > >  .../platform/rockchip/rkisp1/rkisp1-debug.c    | 18 ++++++++++++++++++
> > >  1 file changed, 18 insertions(+)
> > > 
> > > diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> > > b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c index
> > > 71df3dc95e6f..f66b9754472e 100644
> > > --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> > > +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-debug.c
> > > @@ -139,6 +139,21 @@ static int rkisp1_debug_dump_mi_mp_show(struct
> > > seq_file *m, void *p)> > 
> > >  }
> > >  DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_mi_mp);
> > > 
> > > +static int rkisp1_debug_dump_is_show(struct seq_file *m, void *p)
> > > +{
> > > +       static const struct rkisp1_debug_register registers[] = {
> > > +               RKISP1_DEBUG_SHD_REG(ISP_IS_H_OFFS),
> > > +               RKISP1_DEBUG_SHD_REG(ISP_IS_V_OFFS),
> > > +               RKISP1_DEBUG_SHD_REG(ISP_IS_H_SIZE),
> > > +               RKISP1_DEBUG_SHD_REG(ISP_IS_V_SIZE),
> > 
> > I expect so as you haven't added the register macros in this series so
> > they must already be there ...
> 
> Yep :)
> 
> 
> Paul
> 
> > > +               { /* Sentinel */ },
> > > +       };
> > > +       struct rkisp1_device *rkisp1 = m->private;
> > > +
> > > +       return rkisp1_debug_dump_regs(rkisp1, m, 0, registers);
> > > +}
> > > +DEFINE_SHOW_ATTRIBUTE(rkisp1_debug_dump_is);
> > > +
> > > 
> > >  #define RKISP1_DEBUG_DATA_COUNT_BINS   32
> > >  #define RKISP1_DEBUG_DATA_COUNT_STEP   (4096 /
> > >  RKISP1_DEBUG_DATA_COUNT_BINS)> > 
> > > @@ -235,6 +250,9 @@ void rkisp1_debug_init(struct rkisp1_device *rkisp1)
> > > 
> > >         debugfs_create_file("mi_mp", 0444, regs_dir, rkisp1,
> > >         
> > >                             &rkisp1_debug_dump_mi_mp_fops);
> > > 
> > > +
> > > +       debugfs_create_file("is", 0444, regs_dir, rkisp1,
> > > +                           &rkisp1_debug_dump_is_fops);
> > > 
> > >  }
> > >  
> > >  void rkisp1_debug_cleanup(struct rkisp1_device *rkisp1)


-- 
TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
Amtsgericht München, HRB 105018
Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
http://www.tq-group.com/