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HardenedBSD/sys/arm/include/md_var.h

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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 13:46:45 +02:00
/*-
sys: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
2017-11-20 20:43:44 +01:00
* SPDX-License-Identifier: BSD-3-Clause
*
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 13:46:45 +02:00
* Copyright (c) 1995 Bruce D. Evans.
* 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.
* 3. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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)
* 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.
*
* from: FreeBSD: src/sys/i386/include/md_var.h,v 1.40 2001/07/12
* $FreeBSD$
*/
#ifndef _MACHINE_MD_VAR_H_
#define _MACHINE_MD_VAR_H_
Declare Maxmem on arm. This should have been part of r277532.
2015-01-22 18:46:05 +01:00
extern long Maxmem;
Declare sigcode and szsigcode.
2004-09-24 00:30:05 +02:00
extern char sigcode[];
extern int szsigcode;
Support kernel crash mini dumps on ARM architecture. Obtained from: Juniper Networks, Semihalf
2008-11-06 17:20:27 +01:00
extern uint32_t *vm_page_dump;
extern int vm_page_dump_size;
Add AT_HWCAP flags for VFP settings for FreeBSD/arm. These flags match the meaning and value of flags in Linux, though Linux has many more flags. Reviewed by: stevek, Michal Meloun <meloun-miracle-cz> (earlier version) MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D12291
2017-09-14 16:30:43 +02:00
extern u_long elf_hwcap;
Fullify implementation of AT_HWCAP and AT_HWCAP2 for ARMv6,7. This makes elf_aux_info(3) useable for ARM ports. MFC after: 1 month
2017-10-21 14:16:21 +02:00
extern u_long elf_hwcap2;
Declare sigcode and szsigcode.
2004-09-24 00:30:05 +02:00
Add a new API to let platform-specific ports provide functions for big copy/zeroing.
2005-10-03 16:12:10 +02:00
extern int (*_arm_memcpy)(void *, void *, int, int);
extern int (*_arm_bzero)(void *, int, int);
extern int _min_memcpy_size;
extern int _min_bzero_size;
#define DST_IS_USER 0x1
#define SRC_IS_USER 0x2
#define IS_PHYSICAL 0x4
Promote the cpu_class local variable to global and expose it in md_var.h Reviewed by: freebsd-arm
2009-09-26 18:37:23 +02:00
enum cpu_class {
CPU_CLASS_NONE,
CPU_CLASS_ARM9TDMI,
CPU_CLASS_ARM9ES,
CPU_CLASS_ARM9EJS,
CPU_CLASS_ARM10E,
CPU_CLASS_ARM10EJ,
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 05:03:03 +02:00
CPU_CLASS_CORTEXA,
Add identification and necessary type checks for Krait CPU cores. Krait CPU is used in Qualcomm Snapdragon S4 and Snapdragon 400/600/800 SoCs and has architectural similarities to ARM Cortex-A15. As for development boards IFC6400 series embedded boards from Inforce Computing uses Snapdragon S4 Pro/APQ8064. Approved by: stas (mentor)
2013-12-20 01:56:23 +01:00
CPU_CLASS_KRAIT,
Revert r336773: it removed too much. r336773 removed all things xscale. However, some things xscale are really armv5. Revert that entirely. A more modest removal will follow. Noticed by: andrew@
2018-07-27 23:25:01 +02:00
CPU_CLASS_XSCALE,
Promote the cpu_class local variable to global and expose it in md_var.h Reviewed by: freebsd-arm
2009-09-26 18:37:23 +02:00
CPU_CLASS_ARM11J,
CPU_CLASS_MARVELL
};
extern enum cpu_class cpu_class;
Support kernel crash mini dumps on ARM architecture. Obtained from: Juniper Networks, Semihalf
2008-11-06 17:20:27 +01:00
struct dumperinfo;
- Add bounce pages for arm, largely based on the i386 implementation. - Add a default parent dma tag, similar to what has been done for sparc64. - Before invalidating the dcache in POSTREAD, save the bits which are in the same cachelines than our buffers, but not part of it, and restore them after the invalidation.
2007-01-17 01:53:05 +01:00
extern int busdma_swi_pending;
void busdma_swi(void);
Support kernel crash mini dumps on ARM architecture. Obtained from: Juniper Networks, Semihalf
2008-11-06 17:20:27 +01:00
void dump_add_page(vm_paddr_t);
void dump_drop_page(vm_paddr_t);
Pass up the error status of minidumpsys() to its callers. PR: 193761 Submitted by: Conrad Meyer <conrad.meyer@isilon.com> Sponsored by: EMC / Isilon Storage Division
2014-10-08 22:25:21 +02:00
int minidumpsys(struct dumperinfo *);
- Add bounce pages for arm, largely based on the i386 implementation. - Add a default parent dma tag, similar to what has been done for sparc64. - Before invalidating the dcache in POSTREAD, save the bits which are in the same cachelines than our buffers, but not part of it, and restore them after the invalidation.
2007-01-17 01:53:05 +01:00
A follow-up to r288492. In fact, revert the mentioned commit for pre-VFPv3 processors, since they do require software support code to handle denormals. For VFPv3 and later, enable flush-to-zero if hardware does not claim full denormals arithmetic support by VMVFR1_FZ field in mvfr1 register. The end result is that we do use correct fpu environment on Cortexes with VFPv3, while ARM11 (e.g. rpi) is in non-compliant flush-to-zero mode. At least CPUs without complete hardware implementation of IEEE 754 do not cause unhandled floating point exception on underflow, as it was before r288492. Noted by: ian Tested by: gjb Sponsored by: The FreeBSD Foundation MFC after: 1 week
2015-10-07 11:12:49 +02:00
extern uint32_t initial_fpscr;
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 13:46:45 +02:00
#endif /* !_MACHINE_MD_VAR_H_ */
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