From: Dave Airlie <airlied@linux.ie>
Date: Thu, 11 Dec 2008 07:06:35 +0000 (+1000)
Subject: drm: PAGE_CACHE_WC is x86 only so far
X-Git-Tag: v5.15~36156^2~24
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=ae14dc0505261978ca06075ac39cc5422c6c6b57;p=mirror_ubuntu-kernels.git

drm: PAGE_CACHE_WC is x86 only so far

The page protections need to be checked whether they need to be more flexible.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index b3939de6affd..9da581452874 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -516,7 +516,9 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	vma->vm_private_data = map->handle;
 	/* FIXME: use pgprot_writecombine when available */
 	prot = pgprot_val(vma->vm_page_prot);
+#ifdef CONFIG_X86
 	prot |= _PAGE_CACHE_WC;
+#endif
 	vma->vm_page_prot = __pgprot(prot);
 
 	vma->vm_file = filp;	/* Needed for drm_vm_open() */