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authorNicholas Piggin <npiggin@gmail.com>2020-09-02 00:15:17 +1000
committerArnd Bergmann <arnd@arndb.de>2020-10-26 16:45:03 +0100
commit94f89922e1e094f57a143965059a3e477f3f2fdc (patch)
treecbaa4958435ba56d87a73985d2d68a2965e19dfd /include/asm-generic/nommu_context.h
parent3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff)
asm-generic: add generic MMU versions of mmu context functions
Many of these are no-ops on many architectures, so extend mmu_context.h to cover MMU and NOMMU, and split the NOMMU bits out to nommu_context.h Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-arch@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic/nommu_context.h')
-rw-r--r--include/asm-generic/nommu_context.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asm-generic/nommu_context.h b/include/asm-generic/nommu_context.h
new file mode 100644
index 000000000000..4f916f9e16cd
--- /dev/null
+++ b/include/asm-generic/nommu_context.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_GENERIC_NOMMU_H
+#define __ASM_GENERIC_NOMMU_H
+
+/*
+ * Generic hooks for NOMMU architectures, which do not need to do
+ * anything special here.
+ */
+#include <asm-generic/mm_hooks.h>
+
+static inline void switch_mm(struct mm_struct *prev,
+ struct mm_struct *next,
+ struct task_struct *tsk)
+{
+}
+
+#include <asm-generic/mmu_context.h>
+
+#endif /* __ASM_GENERIC_NOMMU_H */