From c9f83a72b5c7c2f29b40b404aa63767b20a7422c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Fran=C3=A7ois=20Tigeot?= <ftigeot@wolfpond.org>
Date: Mon, 5 Nov 2018 22:15:18 +0100
Subject: [PATCH] drm/linux: Fix vmap()

Page protection information was not being used.
---
 sys/dev/drm/linux_vmalloc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/dev/drm/linux_vmalloc.c b/sys/dev/drm/linux_vmalloc.c
index 1e84c2597d..d4b7040221 100644
--- a/sys/dev/drm/linux_vmalloc.c
+++ b/sys/dev/drm/linux_vmalloc.c
@@ -57,6 +57,10 @@ vmap(struct page **pages, unsigned int count,
 	if (off == 0)
 		return (NULL);
 
+	for (int i = 0; i < count; i++) {
+		pmap_page_set_memattr((struct vm_page *)pages[i], prot);
+	}
+
 	vmp->addr = (void *)off;
 	vmp->npages = count;
 	pmap_qenter(off, (struct vm_page **)pages, count);
-- 
2.41.0