From 8afe12b2123cca006df6d0eaa45eb89c36f63a98 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Tue, 21 Jan 2020 10:58:25 +0100
Subject: [PATCH] winsys/svga: Enable transhuge pages for buffer objects

If the kernel supports it, enable transhuge pages for graphics buffer
objects. Except for the syscall itself, this is never expected to cause
any negative performance implications.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3614>
---
 src/gallium/winsys/svga/drm/vmw_screen_ioctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
index 4ce953fee8d..6f987ba059d 100644
--- a/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
+++ b/src/gallium/winsys/svga/drm/vmw_screen_ioctl.c
@@ -694,6 +694,7 @@ vmw_ioctl_region_map(struct vmw_region *region)
 	 return NULL;
       }
 
+      (void) madvise(map, region->size, MADV_HUGEPAGE);
       region->data = map;
    }
 
-- 
2.30.2