From 8ffd9bd0b4dcade9f006648b9fbfdd29919be12e Mon Sep 17 00:00:00 2001
From: Jonathan Gray <jsg@cvs.openbsd.org>
Date: Sun, 11 Oct 2020 05:45:34 +0000
Subject: Align pool items on CACHELINESIZE when replacing linux kmem_cache
 with SLAB_HWCACHE_ALIGN flag.

tested by semarie@
---
 sys/dev/pci/drm/include/linux/processor.h | 4 ++++
 sys/dev/pci/drm/include/linux/slab.h      | 2 ++
 2 files changed, 6 insertions(+)

(limited to 'sys/dev/pci/drm/include')

diff --git a/sys/dev/pci/drm/include/linux/processor.h b/sys/dev/pci/drm/include/linux/processor.h
index 9ddf8c3a753..9386a526e3c 100644
--- a/sys/dev/pci/drm/include/linux/processor.h
+++ b/sys/dev/pci/drm/include/linux/processor.h
@@ -19,4 +19,8 @@ cpu_relax(void)
 	}
 }
 
+#ifndef CACHELINESIZE
+#define CACHELINESIZE 64
+#endif
+
 #endif
diff --git a/sys/dev/pci/drm/include/linux/slab.h b/sys/dev/pci/drm/include/linux/slab.h
index 0d5463ecc1b..c1d5ec8fa24 100644
--- a/sys/dev/pci/drm/include/linux/slab.h
+++ b/sys/dev/pci/drm/include/linux/slab.h
@@ -10,6 +10,8 @@
 #include <linux/workqueue.h>
 #include <linux/gfp.h>
 
+#include <linux/processor.h>	/* for CACHELINESIZE */
+
 static inline void *
 kmalloc(size_t size, int flags)
 {
-- 
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