Re: [Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-21 Thread Mahesh Kumar
Hi Maarten, thanks for pointing out the issue, not only start value, end value is also incorrect. I got the root-cause for both. but this end value issue seems to be always there. end value should be -1 (because start block should also be counted) Will fix both & upload the reworked patches.

Re: [Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-19 Thread Maarten Lankhorst
Op 14-09-16 om 14:36 schreef Mahesh Kumar: > Hi, > There was an issue with transition WM, it was getting enabled & causing fifo > underrun. > I fixed the condition, After that tested kms_plane & not getting any underrun. > Please let me know if you see any other issue. > > Regards, > -Mahesh > > O

Re: [Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-19 Thread Maarten Lankhorst
Hey, Op 14-09-16 om 14:36 schreef Mahesh Kumar: > Hi, > There was an issue with transition WM, it was getting enabled & causing fifo > underrun. > I fixed the condition, After that tested kms_plane & not getting any underrun. > Please let me know if you see any other issue. kms_cursor_legacy.cu

Re: [Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-14 Thread Mahesh Kumar
Hi, There was an issue with transition WM, it was getting enabled & causing fifo underrun. I fixed the condition, After that tested kms_plane & not getting any underrun. Please let me know if you see any other issue. Regards, -Mahesh On Tuesday 13 September 2016 06:10 PM, Maarten Lankhorst wr

Re: [Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-13 Thread Maarten Lankhorst
Op 13-09-16 om 14:15 schreef Kumar, Mahesh: > From: Mahesh Kumar > > This patch implements new DDB allocation algorithm as per HW team > suggestion. This algo takecare of scenario where we allocate less DDB > for the planes with lower relative pixel rate, but they require more DDB > to work. > It

[Intel-gfx] [PATCH v4] drm/i915/skl: New ddb allocation algorithm

2016-09-13 Thread Kumar, Mahesh
From: Mahesh Kumar This patch implements new DDB allocation algorithm as per HW team suggestion. This algo takecare of scenario where we allocate less DDB for the planes with lower relative pixel rate, but they require more DDB to work. It also takes care of enabling same watermark level for each