summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorMarkos Chandras <markos.chandras@imgtec.com>2014-07-21 14:35:54 +0100
committerRalf Baechle <ralf@linux-mips.org>2014-08-19 18:24:40 +0200
commitf85b71ceabb9d8d8a9e34b045b5c43ffde3623b3 (patch)
treede9d218324516fe2b18fecbda3a30c4af42e184e /arch
parent5245689900804604fdc349c8d9b8985b0e401ae2 (diff)
MIPS: EVA: Add new EVA header
Generic code may need to perform certain operations when EVA is enabled, for example, configure the segmentation registers during boot. In order to avoid using more CONFIG_EVA ifdefs in the arch code, such functions will be added in this header instead. Initially this header contains a macro which will be used by generic code later on during VPEs configuration on secondary cores. All it does is to call the platform specific EVA init code in case EVA is enabled. Reviewed-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Patchwork: http://patchwork.linux-mips.org/patch/7422/ Signed-off-by: James Hogan <james.hogan@imgtec.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/include/asm/eva.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/mips/include/asm/eva.h b/arch/mips/include/asm/eva.h
new file mode 100644
index 000000000000..a3d1807f227c
--- /dev/null
+++ b/arch/mips/include/asm/eva.h
@@ -0,0 +1,43 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2014, Imagination Technologies Ltd.
+ *
+ * EVA functions for generic code
+ */
+
+#ifndef _ASM_EVA_H
+#define _ASM_EVA_H
+
+#include <kernel-entry-init.h>
+
+#ifdef __ASSEMBLY__
+
+#ifdef CONFIG_EVA
+
+/*
+ * EVA early init code
+ *
+ * Platforms must define their own 'platform_eva_init' macro in
+ * their kernel-entry-init.h header. This macro usually does the
+ * platform specific configuration of the segmentation registers,
+ * and it is normally called from assembly code.
+ *
+ */
+
+.macro eva_init
+platform_eva_init
+.endm
+
+#else
+
+.macro eva_init
+.endm
+
+#endif /* CONFIG_EVA */
+
+#endif /* __ASSEMBLY__ */
+
+#endif