/* * 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 back net-next plumbingsTobias Klauser
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-22 12:47:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-22 12:47:48 -0800
commit095cbe66973771fecd8e8b1e8763181363ef703e (patch)
treec361a93d62ed171ac958deb0d4ff0faa980bb290 /include/xen/arm/interface.h
parent24b86839fab8e8059d2b16e0067dc86a1a0d3514 (diff)
parent020eb3daaba2857b32c4cf4c82f503d6a00a67de (diff)
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner: "Restore the retrigger callbacks in the IO APIC irq chips. That addresses a long standing regression which got introduced with the rewrite of the x86 irq subsystem two years ago and went unnoticed so far" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ioapic: Restore IO-APIC irq_chip retrigger callback
Diffstat (limited to 'include/xen/arm/interface.h')