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path: root/target/linux/sunxi/patches-3.13/184-1-dt-sun7i-add-usbclock-nodes.patch

	Commit message (Collapse)	Author	Age	Files	Lines
*	sunxi: remove 3.13 support	Zoltan Herpai	2014-09-21	1	-34/+0
| | | | | |	Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu> SVN-Revision: 42628
*	sunxi: driver refresh for 3.13 - update gmac / mmc / usb / ahci drivers to ↵	Zoltan Herpai	2014-03-06	1	-0/+34
	follow mainline dev trees - add driver for spi - update clock support - update a31 support - move to new DT compats where appropriate - re-order patchqueue where needed - verified working a20 smp - move most DTSes off files/ - update defconfig Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu> SVN-Revision: 39782

generated by cgit v1.2.3 (git 2.25.1) at 2025-09-24 00:33:11 +0000

/* include/asm-x86_64/rwlock.h
 *
 *	Helpers used by both rw spinlocks and rw semaphores.
 *
 *	Based in part on code from semaphore.h and
 *	spinlock.h Copyright 1996 Linus Torvalds.
 *
 *	Copyright 1999 Red Hat, Inc.
 *	Copyright 2001,2002 SuSE labs 
 *
 *	Written by Benjamin LaHaise.
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License
 *	as published by the Free Software Foundation; either version
 *	2 of the License, or (at your option) any later version.
 */
#ifndef _ASM_X86_64_RWLOCK_H
#define _ASM_X86_64_RWLOCK_H

#define RW_LOCK_BIAS		 0x01000000
#define RW_LOCK_BIAS_STR	"0x01000000"

#define __build_read_lock_ptr(rw, helper)   \
	asm volatile(LOCK "subl $1,(%0)\n\t" \
		     "js 2f\n" \
		     "1:\n" \
		     ".section .text.lock,\"ax\"\n" \
		     "2:\tcall " helper "\n\t" \
		     "jmp 1b\n" \
		     ".previous" \
		     ::"a" (rw) : "memory")

#define __build_read_lock_const(rw, helper)   \
	asm volatile(LOCK "subl $1,%0\n\t" \
		     "js 2f\n" \
		     "1:\n" \
		     ".section .text.lock,\"ax\"\n" \
		     "2:\tpushq %%rax\n\t" \
		     "leaq %0,%%rax\n\t" \
		     "call " helper "\n\t" \
		     "popq %%rax\n\t" \
		     "jmp 1b\n" \
		     ".previous" \
		     :"=m" (*(volatile int *)rw) : : "memory")

#define __build_read_lock(rw, helper)	do { \
						if (__builtin_constant_p(rw)) \
							__build_read_lock_const(rw, helper); \
						else \
							__build_read_lock_ptr(rw, helper); \
					} while (0)

#define __build_write_lock_ptr(rw, helper) \
	asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
		     "jnz 2f\n" \
		     "1:\n" \
		     ".section .text.lock,\"ax\"\n" \
		     "2:\tcall " helper "\n\t" \
		     "jmp 1b\n" \
		     ".previous" \
		     ::"a" (rw) : "memory")

#define __build_write_lock_const(rw, helper) \
	asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
		     "jnz 2f\n" \
		     "1:\n" \
		     ".section .text.lock,\"ax\"\n" \
		     "2:\tpushq %%rax\n\t" \
		     "leaq %0,%%rax\n\t" \
		     "call " helper "\n\t" \
		     "popq %%rax\n\t" \
		     "jmp 1b\n" \
		     ".previous" \
		     :"=m" (*(volatile int *)rw) : : "memory")

#define __build_write_lock(rw, helper)	do { \
						if (__builtin_constant_p(rw)) \
							__build_write_lock_const(rw, helper); \
						else \
							__build_write_lock_ptr(rw, helper); \
					} while (0)

#endif