/* * Copyright (C) 2016-2017 Synopsys, Inc. (www.synopsys.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #ifndef __SOC_ARC_AUX_H__ #define __SOC_ARC_AUX_H__ #ifdef CONFIG_ARC #define read_aux_reg(r) __builtin_arc_lr(r) /* gcc builtin sr needs reg param to be long immediate */ #define write_aux_reg(r, v) __builtin_arc_sr((unsigned int)(v), r) #else /* !CONFIG_ARC */ static inline int read_aux_reg(u32 r) { return 0; } /* * function helps elide unused variable warning * see: http://lists.infradead.org/pipermail/linux-snps-arc/2016-November/001748.html */ static inline void write_aux_reg(u32 r, u32 v) { ; } #endif #define READ_BCR(reg, into) \ { \ unsigned int tmp; \ tmp = read_aux_reg(reg); \ if (sizeof(tmp) == sizeof(into)) { \ into = *((typeof(into) *)&tmp); \ } else { \ extern void bogus_undefined(void); \ bogus_undefined(); \ } \ } #define WRITE_AUX(reg, into) \ { \ unsigned int tmp; \ if (sizeof(tmp) == sizeof(into)) { \ tmp = (*(unsigned int *)&(into)); \ write_aux_reg(reg, tmp); \ } else { \ extern void bogus_undefined(void); \ bogus_undefined(); \ } \ } #endif /option> net-next plumbingsTobias Klauser
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authorGeorge Spelvin <linux@horizon.com>2016-05-02 06:31:01 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-16 11:35:08 -0700
commit0fed3ac866eabf01924457921ee3684c8e4c9005 (patch)
treed32e64a6c0dbe6f93e5345caec509cc580db2a37 /Documentation/acpi/DSD-properties-rules.txt
parent2dcd0af568b0cf583645c8a317dd12e344b1c72a (diff)
namei: Improve hash mixing if CONFIG_DCACHE_WORD_ACCESS
The hash mixing between adding the next 64 bits of name was just a bit weak. Replaced with a still very fast but slightly more effective mixing function. Signed-off-by: George Spelvin <linux@horizon.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/acpi/DSD-properties-rules.txt')