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

This reverts commit 0ddd2ae. 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: Alex Deucher <[email protected]> Cc: Zhu Lingshan <[email protected]> Cc: Christian König <[email protected]> Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
mpe · Aug 23, 2024 · c358a80 · c358a80
1 parent 9b340ae
commit c358a80
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/include/drm/ttm/ttm_bo.h b/include/drm/ttm/ttm_bo.h
@@ -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;