Patch "drm/i915: Fix calculation of rotated x and y offsets for planar formats" has been added to the 4.9-stable tree
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This is a note to let you know that I've just added the patch titled
drm/i915: Fix calculation of rotated x and y offsets for planar formats
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-fix-calculation-of-rotated-x-and-y-offsets-for-planar-formats.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
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3781bd6e7d64d5f5bea9fdee11ab9460a700c0e4Mon Sep 17 00:00:00 2001
From: Ander Conselvan de Oliveira <[email protected]>
Date: Fri, 20 Jan 2017 16:28:44 +0200
Subject: drm/i915: Fix calculation of rotated x and y offsets for planar formats
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From: Ander Conselvan de Oliveira <[email protected]>
commit 3781bd6e7d64d5f5bea9fdee11ab9460a700c0e4 upstream.
Parameters tile_size, tile_width and tile_height were passed in the wrong order to _intel_adjust_tile_offset() when calculating the rotated offsets.
This doesn't fix any user visible bug, since for packed formats new and old offset are the same and the rotated offsets are within a tile before they are fed to _intel_adjust_tile_offset(). In that case, the offsets are unchanged. That is not true for planar formats, but those are currently not supported.
--- drivers/gpu/drm/i915/intel_display.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
drivers/gpu/drm/i915/intel_display.c +3 -2
@@ -2587,8 +2587,9 @@ intel_fill_fb_info(struct drm_i915_priva* We only keep the x/y offsets, so push all of the * gtt offset into the x/y offsets. */ -_intel_adjust_tile_offset (&x, &y, tile_size, - tile_width, tile_height, pitch_tiles, +_intel_adjust_tile_offset (&x, &y, + tile_width, tile_height, + tile_size, pitch_tiles, gtt_offset_rotated * tile_size,0 ); gtt_offset_rotated += rot_info->plane[i].width * rot_info->plane[i].height;
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/drm-i915-don-t-init-hpd-polling-for-vlv-and-chv-from-runtime_suspend.patch queue-4.9/drm-i915-check-for-null-atomic-state-in-intel_crtc_disable_noatomic.patch queue-4.9/drm-i915-don-t-leak-edid-in-intel_crt_detect_ddc.patch queue-4.9/drm-i915-fix-calculation-of-rotated-x-and-y-offsets-for-planar-formats.patch