Commit c358a809 authored by Alex Deucher's avatar Alex Deucher
Browse files

Revert "drm/ttm: increase ttm pre-fault value to PMD size" 

This reverts commit 0ddd2ae5.

This patch causes sluggishness and stuttering in graphical
apps.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3564
Link: https://www.spinics.net/lists/dri-devel/msg457005.html


Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: Zhu Lingshan <lingshan.zhu@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240820134600.1909370-1-alexander.deucher@amd.com
parent 9b340aeb

include/drm/ttm/ttm_bo.h

+0 −4
Original line number Diff line number Diff line
@@ -39,11 +39,7 @@ 
#include "ttm_device.h"



/* Default number of pre-faulted pages in the TTM fault handler */

#if CONFIG_PGTABLE_LEVELS > 2

#define TTM_BO_VM_NUM_PREFAULT (1 << (PMD_SHIFT - PAGE_SHIFT))

#else

#define TTM_BO_VM_NUM_PREFAULT 16

#endif



struct iosys_map;