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freebsd-skq/sys/arm/include/asmacros.h

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Start all license statements with /*-
2005-01-05 21:58:49 +00:00
/*-
Remove the unreferenced DATA() macro. That leaves only GET_CURTHREAD_PTR() which was added by cognet in 2012, so remove the no-longer-applicable license stuff that referred to all the old contents, and put in a standard 2-clause BSD license (to cover the 6 lines of useful code left in here).
2014-03-11 22:41:34 +00:00
* Copyright (c) 2012 Olivier Houchard <cognet@FreeBSD.org>
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
Remove the unreferenced DATA() macro. That leaves only GET_CURTHREAD_PTR() which was added by cognet in 2012, so remove the no-longer-applicable license stuff that referred to all the old contents, and put in a standard 2-clause BSD license (to cover the 6 lines of useful code left in here).
2014-03-11 22:41:34 +00:00
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_ASMACROS_H_
#define _MACHINE_ASMACROS_H_
Merging projects/armv6, part 1 Cummulative patch of changes that are not vendor-specific: - ARMv6 and ARMv7 architecture support - ARM SMP support - VFP/Neon support - ARM Generic Interrupt Controller driver - Simplification of startup code for all platforms
2012-08-15 03:03:03 +00:00
#include <machine/asm.h>
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
#ifdef _KERNEL
#ifdef LOCORE
Merging projects/armv6, part 1 Cummulative patch of changes that are not vendor-specific: - ARMv6 and ARMv7 architecture support - ARM SMP support - VFP/Neon support - ARM Generic Interrupt Controller driver - Simplification of startup code for all platforms
2012-08-15 03:03:03 +00:00
#ifdef _ARM_ARCH_6
#define GET_CURTHREAD_PTR(tmp) \
Change the way pcpu and curthread are stored per-core: the old way was to store pcpu in a register, and get curthread from pcpu, which is not very atomic, and led to issues if the thread was migrated to another core between the time we got the pcpu address and the time we got curthread. Instead, we now store curthread where pcpu used to be store, and we calculate the pcpu address based on the cpu id.
2014-02-02 20:58:23 +00:00
mrc p15, 0, tmp, c13, c0, 4
Merging projects/armv6, part 1 Cummulative patch of changes that are not vendor-specific: - ARMv6 and ARMv7 architecture support - ARM SMP support - VFP/Neon support - ARM Generic Interrupt Controller driver - Simplification of startup code for all platforms
2012-08-15 03:03:03 +00:00
#else
Change the way the asm GET_CURTHREAD_PTR() macro is defined so that code using it doesn't have to have an "AST_LOCALS" macro somewhere in the file.
2014-03-10 22:38:07 +00:00
#define GET_CURTHREAD_PTR(tmp) \
ldr tmp, =_C_LABEL(__pcpu);\
ldr tmp, [tmp, #PC_CURTHREAD]
Merging projects/armv6, part 1 Cummulative patch of changes that are not vendor-specific: - ARMv6 and ARMv7 architecture support - ARM SMP support - VFP/Neon support - ARM Generic Interrupt Controller driver - Simplification of startup code for all platforms
2012-08-15 03:03:03 +00:00
#endif
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
Add an elf not so kgdb detects the kernel as a FreeBSD elf file. The ELFNOTE macro is based on one from the FreeBSD/ARM Xen tree [1]. Obtained from: Julien Grall <julien.grall AT linaro.org> [1]
2014-10-18 13:38:04 +00:00
#define ELFNOTE(section, type, vendor, desctype, descdata...) \
.pushsection section ; \
.balign 4 ; \
.long 2f - 1f /* namesz */ ; \
.long 4f - 3f /* descsz */ ; \
.long type /* type */ ; \
1: .asciz vendor /* vendor name */ ; \
2: .balign 4 ; \
3: desctype descdata /* node */ ; \
4: .balign 4 ; \
.popsection
Import FreeBSD/arm kernel bits. It only supports sa1110 (on simics) right now, but xscale support should come soon. Some of the initial work has been provided by : Stephane Potvin <sepotvin at videotron.ca> Most of this comes from NetBSD.
2004-05-14 11:46:45 +00:00
#endif /* LOCORE */
#endif /* _KERNEL */
#endif /* !_MACHINE_ASMACROS_H_ */
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