From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/ia64/include/asm/shmparam.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 arch/ia64/include/asm/shmparam.h (limited to 'arch/ia64/include/asm/shmparam.h') diff --git a/arch/ia64/include/asm/shmparam.h b/arch/ia64/include/asm/shmparam.h new file mode 100644 index 0000000000..43bd8324ab --- /dev/null +++ b/arch/ia64/include/asm/shmparam.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_SHMPARAM_H +#define _ASM_IA64_SHMPARAM_H + +/* + * SHMLBA controls minimum alignment at which shared memory segments + * get attached. The IA-64 architecture says that there may be a + * performance degradation when there are virtual aliases within 1MB. + * To reduce the chance of this, we set SHMLBA to 1MB. --davidm 00/12/20 + */ +#define SHMLBA (1024*1024) + +#endif /* _ASM_IA64_SHMPARAM_H */ -- cgit v1.2.3