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

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Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
/*-
* Copyright (c) 1996 Berkeley Software Design, Inc. 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. Berkeley Software Design Inc's name may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``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 BERKELEY SOFTWARE DESIGN INC 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 BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_KTR_H_
#define _MACHINE_KTR_H_
Use <sys/ktr.h> directly in .S files instead of exporting the KTR_* class macros via genassym.c. Together with sys/sys/ktr.h rev. 1.34 this has the desired side-effect of providing a default value for KTR_COMPILE. Thus this fixes warnings from -Wundef regarding KTR_COMPILE not being defined for .S files. Requested by: ru Reviewed by: ru
2005-12-06 16:38:08 +00:00
#include <sys/ktr.h>
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
#ifndef LOCORE
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
- 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 KTR_CPU PCPU_GET(mid)
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
#else
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
/*
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
* XXX could really use another register...
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
*/
#define ATR(desc, r1, r2, r3, l1, l2) \
.sect .rodata ; \
Two tokens that don't together form a vaid preprocssor token cannot be pasted together using ANSI-C token concatinatation. GCC's cpp, at least, produces the desired result w/o using "##".
2003-04-26 17:00:10 +00:00
l1: .asciz desc ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
.previous ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
SET(ktr_idx, r2, r1) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
lduw [r1], r2 ; \
Two tokens that don't together form a vaid preprocssor token cannot be pasted together using ANSI-C token concatinatation. GCC's cpp, at least, produces the desired result w/o using "##".
2003-04-26 17:00:10 +00:00
l2: add r2, 1, r3 ; \
Don't overflow the ktr buffer <gulp>.
2001-09-30 18:42:56 +00:00
set KTR_ENTRIES - 1, r1 ; \
and r3, r1, r3 ; \
set ktr_idx, r1 ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
casa [r1] ASI_N, r2, r3 ; \
cmp r2, r3 ; \
bne %icc, l2 ## b ; \
mov r3, r2 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
SET(ktr_buf, r3, r1) ; \
- Implement run-time expansion of the KTR buffer via sysctl. - Implement a function to ensure that all preempted threads have switched back out at least once. Use this to make sure there are no stale references to the old ktr_buf or the lock profiling buffers before updating them. Reviewed by: marius (sparc64 parts), attilio (earlier patch) Sponsored by: EMC / Isilon Storage Division
2012-11-15 00:51:57 +00:00
ldx [r1], r1 ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
mulx r2, KTR_SIZEOF, r2 ; \
add r1, r2, r1 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
rd %tick, r2 ; \
stx r2, [r1 + KTR_TIMESTAMP] ; \
- 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
lduw [PCPU(MID)], r2 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
stw r2, [r1 + KTR_CPU] ; \
stw %g0, [r1 + KTR_LINE] ; \
stx %g0, [r1 + KTR_FILE] ; \
SET(l1 ## b, r3, r2) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
stx r2, [r1 + KTR_DESC]
Adapt CATR() to r222813. This is somewhat tricky as we can't afford using more than three temporary register in several places CATR() is used so this code trades instructions in for registers. Actually, this still isn't sufficient and CATR() has the side-effect of clobbering %y. Luckily, with the current uses of CATR() this either doesn't matter or we are able to (save and) restore it. Now that there's only one use of AND() and TEST() left inline these.
2011-06-07 17:33:39 +00:00
/*
* NB: this clobbers %y.
*/
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
#define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
set mask, r1 ; \
Adapt CATR() to r222813. This is somewhat tricky as we can't afford using more than three temporary register in several places CATR() is used so this code trades instructions in for registers. Actually, this still isn't sufficient and CATR() has the side-effect of clobbering %y. Luckily, with the current uses of CATR() this either doesn't matter or we are able to (save and) restore it. Now that there's only one use of AND() and TEST() left inline these.
2011-06-07 17:33:39 +00:00
SET(ktr_mask, r3, r2) ; \
lduw [r2], r2 ; \
and r2, r1, r1 ; \
brz r1, l3 ## f ; \
nop ; \
lduw [PCPU(CPUID)], r2 ; \
mov _NCPUBITS, r3 ; \
mov %g0, %y ; \
udiv r2, r3, r2 ; \
srl r2, 0, r2 ; \
sllx r2, PTR_SHIFT, r2 ; \
SET(ktr_cpumask, r3, r1) ; \
ldx [r1 + r2], r1 ; \
lduw [PCPU(CPUID)], r2 ; \
mov _NCPUBITS, r3 ; \
mov %g0, %y ; \
udiv r2, r3, r2 ; \
srl r2, 0, r2 ; \
smul r2, r3, r3 ; \
lduw [PCPU(CPUID)], r2 ; \
sub r2, r3, r3 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
mov 1, r2 ; \
Adapt CATR() to r222813. This is somewhat tricky as we can't afford using more than three temporary register in several places CATR() is used so this code trades instructions in for registers. Actually, this still isn't sufficient and CATR() has the side-effect of clobbering %y. Luckily, with the current uses of CATR() this either doesn't matter or we are able to (save and) restore it. Now that there's only one use of AND() and TEST() left inline these.
2011-06-07 17:33:39 +00:00
sllx r2, r3, r2 ; \
andn r1, r2, r1 ; \
brz r1, l3 ## f ; \
nop ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
ATR(desc, r1, r2, r3, l1, l2)
#endif /* LOCORE */
#endif /* !_MACHINE_KTR_H_ */
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