Patch "drm: Loongson-3 doesn't fully support wc memory" has been added to the 4.4-stable tree

Patch "drm: Loongson-3 doesn't fully support wc memory" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm: Loongson-3 doesn't fully support wc memory

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-loongson-3-doesn-t-fully-support-wc-memory.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 221004c66a58949a0f25c937a6789c0839feb530 Mon Sep 17 00:00:00 2001
From: Huacai Chen <chenhc@lemote.com>
Date: Tue, 19 Apr 2016 19:19:11 +0800
Subject: drm: Loongson-3 doesn't fully support wc memory

From: Huacai Chen <chenhc@lemote.com>

commit 221004c66a58949a0f25c937a6789c0839feb530 upstream.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/drm/drm_cache.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -39,6 +39,8 @@ static inline bool drm_arch_can_wc_memor
 {
 #if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)
 	return false;
+#elif defined(CONFIG_MIPS) && defined(CONFIG_CPU_LOONGSON3)
+	return false;
 #else
 	return true;
 #endif


Patches currently in stable-queue which might be from chenhc@lemote.com are

queue-4.4/drm-loongson-3-doesn-t-fully-support-wc-memory.patch