Re: [Intel-gfx] [PATCH v4] drm/i915: Retry HDCP bksv read

2018-02-05 Thread Ramalingam C
On Monday 05 February 2018 10:54 PM, Sean Paul wrote: On Mon, Feb 05, 2018 at 10:44:41PM +0530, Ramalingam C wrote: HDCP specification says that when bksv is identified as invalid (not with 20 1s), bksv should be re-read and verified. This patch adds the above mentioned re-read for bksv.

Re: [Intel-gfx] [PATCH v4] drm/i915: Retry HDCP bksv read

2018-02-05 Thread Sean Paul
On Mon, Feb 05, 2018 at 10:44:41PM +0530, Ramalingam C wrote: > HDCP specification says that when bksv is identified as invalid > (not with 20 1s), bksv should be re-read and verified. > > This patch adds the above mentioned re-read for bksv. > > v2: > Rephrased the commit msg [Seanpaul] > >

[Intel-gfx] [PATCH v4] drm/i915: Retry HDCP bksv read

2018-02-05 Thread Ramalingam C
HDCP specification says that when bksv is identified as invalid (not with 20 1s), bksv should be re-read and verified. This patch adds the above mentioned re-read for bksv. v2: Rephrased the commit msg [Seanpaul] v3: do-while to for-loop [Seanpaul] v4: retry only if bksv is invalid and