kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-10-20 19:23:40 +00:00
Code Issues Releases Packages Activity
linux/drivers/gpu
History
Ville Syrjälä 250164081d drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes 
commit c7b49506b3 upstream.

I'm seeing underruns with these 64bpp YUV formats on TGL.

The weird details:
- only happens on pipe B/C/D SDR planes, pipe A SDR planes
  seem fine, as do all HDR planes
- somehow CDCLK related, higher CDCLK allows for bigger plane
  with these formats without underruns. With 300MHz CDCLK I
  can only go up to 1200 pixels wide or so, with 650MHz even
  a 3840 pixel wide plane was OK
- ICL and ADL so far appear unaffected

So not really sure what's the deal with this, but bspec does
state "64-bit formats supported only on the HDR planes" so
let's just drop these formats from the SDR planes. We already
disallow 64bpp RGB formats.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241218173650.19782-2-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
(cherry picked from commit 35e1aacfe5)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-03-13 12:50:24 +01:00
..
drm drm/i915: Drop 64bpp YUV formats from ICL+ SDR planes 2025-03-13 12:50:24 +01:00
host1x gpu: host1x: Do not setup DMA for virtual devices 2024-05-17 11:50:54 +02:00
ipu-v3 gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id() 2023-03-10 09:39:20 +01:00
trace gpu/trace: add a gpu total memory usage tracepoint 2020-03-03 17:52:41 -05:00
vga vgaarb: don't pass a cookie to vga_client_register 2021-07-21 10:29:10 +02:00
Makefile gpu/trace: add a gpu total memory usage tracepoint 2020-03-03 17:52:41 -05:00