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

Message ID 13ab79d7a6c7ec6292c803ce1e52c8ac12af320f.1681767298.git.christophe.jaillet@wanadoo.fr
State New
Headers
Series drm/amd/display: Fix a test CalculatePrefetchSchedule() |

Commit Message

Christophe JAILLET April 17, 2023, 9:35 p.m. UTC
  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@wanadoo.fr>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Comments

Hamza Mahfooz April 24, 2023, 8:13 p.m. UTC | #1
On 4/17/23 17:35, Christophe JAILLET wrote:
> 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@wanadoo.fr>

Applied, thanks!

> ---
>   drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> 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 b7c2844d0cbe..f294f2f8c75b 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;
>   	}
>
  

Patch

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 b7c2844d0cbe..f294f2f8c75b 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;
 	}