diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-11 20:42:32 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-11 20:42:32 -0500 |
| commit | b3d6524ff7956c5a898d51a18eaecb62a60a2b84 (patch) | |
| tree | cc049e7ec9edd9f5a76f286e04d8db9a1caa516a | |
| parent | 07f80d41cf24b7e6e76cd97d420167932c9a7f82 (diff) | |
| parent | 6a039eab53c01a58bfff95c78fc800ca7de27c77 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
- The remaining patches for the z13 machine support: kernel build
option for z13, the cache synonym avoidance, SMT support,
compare-and-delay for spinloops and the CES5S crypto adapater.
- The ftrace support for function tracing with the gcc hotpatch option.
This touches common code Makefiles, Steven is ok with the changes.
- The hypfs file system gets an extension to access diagnose 0x0c data
in user space for performance analysis for Linux running under z/VM.
- The iucv hvc console gets wildcard spport for the user id filtering.
- The cacheinfo code is converted to use the generic infrastructure.
- Cleanup and bug fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
s390/process: free vx save area when releasing tasks
s390/hypfs: Eliminate hypfs interval
s390/hypfs: Add diagnose 0c support
s390/cacheinfo: don't use smp_processor_id() in preemptible context
s390/zcrypt: fixed domain scanning problem (again)
s390/smp: increase maximum value of NR_CPUS to 512
s390/jump label: use different nop instruction
s390/jump label: add sanity checks
s390/mm: correct missing space when reporting user process faults
s390/dasd: cleanup profiling
s390/dasd: add locking for global_profile access
s390/ftrace: hotpatch support for function tracing
ftrace: let notrace function attribute disable hotpatching if necessary
ftrace: allow architectures to specify ftrace compile options
s390: reintroduce diag 44 calls for cpu_relax()
s390/zcrypt: Add support for new crypto express (CEX5S) adapter.
s390/zcrypt: Number of supported ap domains is not retrievable.
s390/spinlock: add compare-and-delay to lock wait loops
s390/tape: remove redundant if statement
s390/hvc_iucv: add simple wildcard matches to the iucv allow filter
...
82 files changed, 1640 insertions, 1030 deletions
diff --git a/Documentation/s390/Debugging390.txt b/Documentation/s390/Debugging390.txt index 08911b5c6b0e..3df8babcdc41 100644 --- a/Documentation/s390/Debugging390.txt +++ b/Documentation/s390/Debugging390.txt | |||
| @@ -1,14 +1,14 @@ | |||
| 1 | 1 | ||
| 2 | Debugging on Linux for s/390 & z/Architecture | 2 | Debugging on Linux for s/390 & z/Architecture |
| 3 | by | 3 | by |
| 4 | Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) | 4 | Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) |
| 5 | Copyright (C) 2000-2001 IBM Deutschland Entwicklung GmbH, IBM Corporation | 5 | Copyright (C) 2000-2001 IBM Deutschland Entwicklung GmbH, IBM Corporation |
| 6 | Best viewed with fixed width fonts | 6 | Best viewed with fixed width fonts |
| 7 | 7 | ||
| 8 | Overview of Document: | 8 | Overview of Document: |
| 9 | ===================== | 9 | ===================== |
| 10 | This document is intended to give a good overview of how to debug | 10 | This document is intended to give a good overview of how to debug Linux for |
| 11 | Linux for s/390 & z/Architecture. It isn't intended as a complete reference & not a | 11 | s/390 and z/Architecture. It is not intended as a complete reference and not a |
| 12 | tutorial on the fundamentals of C & assembly. It doesn't go into | 12 | tutorial on the fundamentals of C & assembly. It doesn't go into |
| 13 | 390 IO in any detail. It is intended to complement the documents in the | 13 | 390 IO in any detail. It is intended to complement the documents in the |
| 14 | reference section below & any other worthwhile references you get. | 14 | reference section below & any other worthwhile references you get. |
| @@ -35,7 +35,6 @@ Examining core dumps | |||
| 35 | ldd | 35 | ldd |
| 36 | Debugging modules | 36 | Debugging modules |
| 37 | The proc file system | 37 | The proc file system |
| 38 | Starting points for debugging scripting languages etc. | ||
| 39 | SysRq | 38 | SysRq |
| 40 | References | 39 | References |
| 41 | Special Thanks | 40 | Special Thanks |
| @@ -44,18 +43,20 @@ Register Set | |||
| 44 | ============ | 43 | ============ |
| 45 | The current architectures have the following registers. | 44 | The current architectures have the following registers. |
| 46 | 45 | ||
| 47 | 16 General propose registers, 32 bit on s/390 64 bit on z/Architecture, r0-r15 or gpr0-gpr15 used for arithmetic & addressing. | 46 | 16 General propose registers, 32 bit on s/390 and 64 bit on z/Architecture, |
| 48 | 47 | r0-r15 (or gpr0-gpr15), used for arithmetic and addressing. | |
| 49 | 16 Control registers, 32 bit on s/390 64 bit on z/Architecture, ( cr0-cr15 kernel usage only ) used for memory management, | 48 | |
| 50 | interrupt control,debugging control etc. | 49 | 16 Control registers, 32 bit on s/390 and 64 bit on z/Architecture, cr0-cr15, |
| 51 | 50 | kernel usage only, used for memory management, interrupt control, debugging | |
| 52 | 16 Access registers ( ar0-ar15 ) 32 bit on s/390 & z/Architecture | 51 | control etc. |
| 53 | not used by normal programs but potentially could | 52 | |
| 54 | be used as temporary storage. Their main purpose is their 1 to 1 | 53 | 16 Access registers (ar0-ar15), 32 bit on both s/390 and z/Architecture, |
| 55 | association with general purpose registers and are used in | 54 | |