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From: Ramalingam C <ramalingam.c@intel.com>
To: Pekka Paalanen <ppaalanen@gmail.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>,
	dri-devel <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH v8 6/6] drm/hdcp: reference for srm file format
Date: Mon, 8 Jul 2019 14:52:43 +0530	[thread overview]
Message-ID: <20190708092243.GC31930@intel.com> (raw)
In-Reply-To: <20190708131623.72f3ac45@eldfell.localdomain>

On 2019-07-08 at 13:16:23 +0300, Pekka Paalanen wrote:
> On Fri,  5 Jul 2019 06:16:42 +0530
> Ramalingam C <ramalingam.c@intel.com> wrote:
> 
> > In the kernel documentation, HDCP specifications links are shared as a
> > reference for SRM table format.
> > 
> > Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
> > ---
> >  drivers/gpu/drm/drm_hdcp.c | 7 +++++++
> >  1 file changed, 7 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c
> > index 77433ee3d652..803bf8283b83 100644
> > --- a/drivers/gpu/drm/drm_hdcp.c
> > +++ b/drivers/gpu/drm/drm_hdcp.c
> > @@ -271,6 +271,13 @@ static void drm_hdcp_request_srm(struct drm_device *drm_dev)
> >   *
> >   * SRM should be presented in the name of "display_hdcp_srm.bin".
> >   *
> > + * Format of the SRM table that userspace needs to write into the binary file
> > + * is defined at
> > + * 1. Renewability chapter on 55th page of HDCP 1.4 specification
> > + * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20Specification%20Rev1_4_Secure.pdf
> > + * 2. Renewability chapter on 63rd page of HDCP 2.2 specification
> > + * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20on%20HDMI%20Specification%20Rev2_2_Final1.pdf
> > + *
> >   * Returns:
> >   * TRUE on any of the KSV is revoked, else FALSE.
> >   */
> 
> Hi,
> 
> this look good, publicly accessible spec links even. I'm happy with
> this, but I repeat that the Weston work[1] does not directly prove this
> UAPI (perhaps not necessary either?).
Thanks for helping to improve this part.

-Ram
> 
> 
> [1] https://gitlab.freedesktop.org/wayland/weston/merge_requests/48
> 
> Thanks,
> pq


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  reply	other threads:[~2019-07-08  9:22 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-05  0:46 [PATCH v8 0/6] HDCP2.2 Phase II Ramalingam C
2019-07-05  0:46 ` [PATCH v8 1/6] drm: Add Content protection type property Ramalingam C
2019-07-08  9:52   ` Pekka Paalanen
2019-07-08  9:59     ` Pekka Paalanen
2019-07-08  9:12       ` Ramalingam C
2019-07-09 13:26         ` Pekka Paalanen
2019-07-09 12:58           ` Ramalingam C
2019-07-05  0:46 ` [PATCH v8 2/6] drm/i915: Attach content " Ramalingam C
2019-07-05  0:46 ` [PATCH v8 3/6] drm: uevent for connector status change Ramalingam C
2019-07-05  0:46 ` [PATCH v8 4/6] drm/hdcp: update content protection property with uevent Ramalingam C
2019-07-08 10:09   ` Pekka Paalanen
2019-07-08  9:21     ` Ramalingam C
2019-07-05  0:46 ` [PATCH v8 5/6] drm/i915: update the hdcp state " Ramalingam C
2019-07-05  0:46 ` [PATCH v8 6/6] drm/hdcp: reference for srm file format Ramalingam C
2019-07-08 10:16   ` Pekka Paalanen
2019-07-08  9:22     ` Ramalingam C [this message]
2019-07-05  9:02 ` ✗ Fi.CI.CHECKPATCH: warning for HDCP2.2 Phase II (rev10) Patchwork
2019-07-05  9:48 ` ✗ Fi.CI.BAT: failure " Patchwork

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