Patch "drm/amd/display: Fix a test CalculatePrefetchSchedule()" has been added to the 6.3-stable tree

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This is a note to let you know that I've just added the patch titled

    drm/amd/display: Fix a test CalculatePrefetchSchedule()

to the 6.3-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-amd-display-fix-a-test-calculateprefetchschedule.patch
and it can be found in the queue-6.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 7fb417e79fccdf234f4c66e608a8512e36798e81
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date:   Mon Apr 17 23:35:08 2023 +0200

    drm/amd/display: Fix a test CalculatePrefetchSchedule()
    
    [ Upstream commit 960e27a5741cd3001996ff6ddfb3eb0ed3a4909d ]
    
    It is likely Height was expected here, instead of Width.
    
    Test the correct variable.
    
    Fixes: 17529ea2acfa ("drm/amd/display: Optimizations for DML math")
    Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
    Signed-off-by: Hamza Mahfooz <hamza.mahfooz@xxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index b7c2844d0cbee..f294f2f8c75bc 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -810,7 +810,7 @@ static bool CalculatePrefetchSchedule(
 			*swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockWidth256BytesC) + myPipe->BlockWidth256BytesC;
 	} else {
 		*swath_width_luma_ub = dml_ceil(SwathWidthY - 1, myPipe->BlockHeight256BytesY) + myPipe->BlockHeight256BytesY;
-		if (myPipe->BlockWidth256BytesC > 0)
+		if (myPipe->BlockHeight256BytesC > 0)
 			*swath_width_chroma_ub = dml_ceil(SwathWidthY / 2 - 1, myPipe->BlockHeight256BytesC) + myPipe->BlockHeight256BytesC;
 	}
 



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