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| author | Greentime Hu <greentime@andestech.com> | 2017-10-24 09:53:31 +0300 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 05:44:31 +0300 |
| commit | 2e1aecb970b7662cf3d53d2d18a54c17f1eb55b8 (patch) | |
| tree | 572eba03a7c2b99f672d74e9dbbe70a32a399104 /arch/nds32/include/asm/shmparam.h | |
| parent | 2923f5ea7738cb9f5372bb9d7ac9886cf4193003 (diff) | |
| download | linux-2e1aecb970b7662cf3d53d2d18a54c17f1eb55b8.tar.xz | |
nds32: MMU definitions
This patch includes virtual memory layout, PHYS_OFFSET is defined as 0x0. It
also includes the 4KB/8KB page size configurations and pte operations.
Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/include/asm/shmparam.h')
| -rw-r--r-- | arch/nds32/include/asm/shmparam.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/shmparam.h b/arch/nds32/include/asm/shmparam.h new file mode 100644 index 000000000000..fd1cff64b68e --- /dev/null +++ b/arch/nds32/include/asm/shmparam.h @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef _ASMNDS32_SHMPARAM_H +#define _ASMNDS32_SHMPARAM_H + +/* + * This should be the size of the virtually indexed cache/ways, + * whichever is greater since the cache aliases every size/ways + * bytes. + */ +#define SHMLBA (4 * SZ_8K) /* attach addr a multiple of this */ + +/* + * Enforce SHMLBA in shmat + */ +#define __ARCH_FORCE_SHMLBA + +#endif /* _ASMNDS32_SHMPARAM_H */ |