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freebsd-dev/sys/sparc64/include/upa.h

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Add upa.h, which I had previously forgotten, to unbreak the sparc64 kernel build. Pointy hat to: tmm
2002-01-08 16:25:51 +00:00
/*-
sys/sparc64: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. 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.
2017-11-27 15:10:39 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
Add upa.h, which I had previously forgotten, to unbreak the sparc64 kernel build. Pointy hat to: tmm
2002-01-08 16:25:51 +00:00
* Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_UPA_H_
- Search the whole OFW device tree instead of only the children of the root nexus device for the CPUs as starting with UltraSPARC IV the 'cpu' nodes hang off of from 'cmp' (chip multi-threading processor) or 'core' or combinations thereof. Also in large UltraSPARC III based machines the 'cpu' nodes hang off of 'ssm' (scalable shared memory) nodes which group snooping-coherency domains together instead of directly from the nexus. It would be great if we could use newbus to deal with the different ways the 'cpu' devices can hang off of pseudo ones but unfortunately both cpu_mp_setmaxid() and sparc64_init() have to work prior to regular device probing. - Add support for UltraSPARC IV and IV+ CPUs. Due to the fact that these are multi-core each CPU has two Fireplane config registers and thus the module/target ID has to be determined differently so the one specific to a certain core is used. Similarly, starting with UltraSPARC IV the individual cores use a different property in the OFW device tree to indicate the CPU/core ID as it no longer is in coincidence with the shared slot/socket ID. This involves changing the MD KTR code to not directly read the UPA module ID either. We use the MID stored in the per-CPU data instead of calling cpu_get_mid() as a replacement in order prevent clobbering any registers as side-effect in the assembler version. This requires CATR() invocations from mp_startup() prior to mapping the per-CPU pages to be removed though. While at it additionally distinguish between CPUs with Fireplane and JBus interconnects as these also use slightly different sizes for the JBus/agent/module/target IDs. - Make sparc64_shutdown_final() static as it's not used outside of machdep.c.
2010-02-13 16:52:33 +00:00
#define _MACHINE_UPA_H_
Add upa.h, which I had previously forgotten, to unbreak the sparc64 kernel build. Pointy hat to: tmm
2002-01-08 16:25:51 +00:00
Lower UPA_MEMSTART to 0x1c000000000. This is required for some larger Enterprise machines.
2002-04-02 17:38:52 +00:00
#define UPA_MEMSTART 0x1c000000000UL
Add upa.h, which I had previously forgotten, to unbreak the sparc64 kernel build. Pointy hat to: tmm
2002-01-08 16:25:51 +00:00
#define UPA_MEMEND 0x1ffffffffffUL
Add macros to extract the UPA module id from the UPA config register. This is the hardware cpuid.
2002-02-23 19:54:34 +00:00
#define UPA_CR_MID_SHIFT (17)
#define UPA_CR_MID_SIZE (5)
- Search the whole OFW device tree instead of only the children of the root nexus device for the CPUs as starting with UltraSPARC IV the 'cpu' nodes hang off of from 'cmp' (chip multi-threading processor) or 'core' or combinations thereof. Also in large UltraSPARC III based machines the 'cpu' nodes hang off of 'ssm' (scalable shared memory) nodes which group snooping-coherency domains together instead of directly from the nexus. It would be great if we could use newbus to deal with the different ways the 'cpu' devices can hang off of pseudo ones but unfortunately both cpu_mp_setmaxid() and sparc64_init() have to work prior to regular device probing. - Add support for UltraSPARC IV and IV+ CPUs. Due to the fact that these are multi-core each CPU has two Fireplane config registers and thus the module/target ID has to be determined differently so the one specific to a certain core is used. Similarly, starting with UltraSPARC IV the individual cores use a different property in the OFW device tree to indicate the CPU/core ID as it no longer is in coincidence with the shared slot/socket ID. This involves changing the MD KTR code to not directly read the UPA module ID either. We use the MID stored in the per-CPU data instead of calling cpu_get_mid() as a replacement in order prevent clobbering any registers as side-effect in the assembler version. This requires CATR() invocations from mp_startup() prior to mapping the per-CPU pages to be removed though. While at it additionally distinguish between CPUs with Fireplane and JBus interconnects as these also use slightly different sizes for the JBus/agent/module/target IDs. - Make sparc64_shutdown_final() static as it's not used outside of machdep.c.
2010-02-13 16:52:33 +00:00
#define UPA_CR_MID_MASK \
Add support for starting secondary cpus in kernel, as opposed to relying on the loader to do it. Improve smp startup code to be less racy and to defer certain things until the right time. This almost boots single user on my dual ultra 60, it is still very fragile: SMP: AP CPU #1 Launched! Enter full pathname of shell or RETURN for /bin/sh: # ls Debugger("trapsig") Stopped at Debugger+0x1c: ta %xcc, 1 db> heh No such command db>
2002-03-04 07:12:36 +00:00
(((1 << UPA_CR_MID_SIZE) - 1) << UPA_CR_MID_SHIFT)
Add macros to extract the UPA module id from the UPA config register. This is the hardware cpuid.
2002-02-23 19:54:34 +00:00
#define UPA_CR_GET_MID(cr) ((cr & UPA_CR_MID_MASK) >> UPA_CR_MID_SHIFT)
Add upa.h, which I had previously forgotten, to unbreak the sparc64 kernel build. Pointy hat to: tmm
2002-01-08 16:25:51 +00:00
#endif /* _MACHINE_UPA_H_ */
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