- 30 11月, 2012 1 次提交
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由 Jan Glauber 提交于
Add PCI support for s390, (only 64 bit mode is supported by hardware): - PCI facility tests - PCI instructions: pcilg, pcistg, pcistb, stpcifc, mpcifc, rpcit - map readb/w/l/q and writeb/w/l/q to pcilg and pcistg instructions - pci_iomap implementation - memcpy_fromio/toio - pci_root_ops using special pcilg/pcistg - device, bus and domain allocation Signed-off-by: NJan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 23 11月, 2012 1 次提交
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由 Heiko Carstens 提交于
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 26 9月, 2012 4 次提交
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由 Heiko Carstens 提交于
Fix typo: risblk -> risblg. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Martin Schwidefsky 提交于
Allow user-space processes to use transactional execution (TX). If the TX facility is available user space programs can use transactions for fine-grained serialization based on the data objects that are referenced during a transaction. This is useful for lockless data structures and speculative compiler optimizations. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Jan Glauber 提交于
Allow user-space threads to use runtime instrumentation (RI). To enable RI for a thread there is a new s390 specific system call, sys_s390_runtime_instr, that takes as parameter a realtime signal number. If the RI facility is available the system call sets up a control block for the calling thread with the appropriate permissions for the thread to modify the control block. The user-space thread can then use the store and modify RI instructions to alter the control block and start/stop the instrumentation via RION/RIOFF. If the user specified program buffer runs full RI triggers an external interrupt. The external interrupt is translated to a real-time signal that is delivered to the thread that enabled RI on that CPU. The number of the real-time signal is the number specified in the RI system call. So, user-space can select any available real-time signal number in case the application itself uses real-time signals for other purposes. The kernel saves the RI control blocks on task switch only if the running thread was enabled for RI. Therefore, the performance impact on task switch should be negligible if RI is not used. RI is only enabled for user-space mode and is disabled for the supervisor state. Reviewed-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NJan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Martin Schwidefsky 提交于
The s390 implementation of the JIT compiler for packet filter speedup. Reviewed-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 30 7月, 2012 1 次提交
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由 Heiko Carstens 提交于
We use the user_mode() helper already at several places but also have the open coded variant at other places. Convert the code to always use the helper function. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 26 7月, 2012 1 次提交
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由 Cornelia Huck 提交于
Provide a new function, insn_to_mnemonic, by which e.g. kvm can obtain a human-readable decoding of an instruction's opcode. Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 20 7月, 2012 2 次提交
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由 Cornelia Huck 提交于
Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Heiko Carstens 提交于
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 29 3月, 2012 1 次提交
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由 David Howells 提交于
Disintegrate asm/system.h for S390. Signed-off-by: NDavid Howells <dhowells@redhat.com> cc: linux-s390@vger.kernel.org
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- 27 12月, 2011 1 次提交
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由 Heiko Carstens 提交于
If an exception happens the PSW either points to the instruction that caused the exception or to the instruction that follows the exception causing instruction, depending on the exception type. Since the inkernel disassembler adds a ">" in front of the disassembly many people assume incorrectly that the instruction that is pointed to must be the cause of the exception. To make people aware that this is not necessarily the case add a different character in front of the disassembled instruction that precedes the current instructions. The output now looks like this: Krnl PSW : 0704200180000000 0000000000120de8 (test_function+0x0/0x100) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 Krnl GPRS: 000003ff00000000 0000000000120de4 000000000091bb40 0000000000000001 000003fffd2ea000 0000000030fb7df8 0000000030fb7f10 000003ffffa113c8 000000000091bb40 000003fffd2ea000 0000000000000002 0000000030fb7f10 000000003f290240 0000000000606220 00000000002cfb5c 0000000030fb7d58 Krnl Code: 0000000000120ddc: b90400a9 lgr %r10,%r9 0000000000120de0: a7f4ff88 brc 15,120cf0 #0000000000120de4: a7f40001 brc 15,120de6 >0000000000120de8: a7f13f80 tmll %r15,16256 0000000000120dec: eb8ff0580024 stmg %r8,%r15,88(%r15) 0000000000120df2: a7840001 brc 8,120df4 0000000000120df6: b90400ef lgr %r14,%r15 0000000000120dfa: a7fbffb8 aghi %r15,-72 Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 27 7月, 2011 1 次提交
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由 Arun Sharma 提交于
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: NArun Sharma <asharma@fb.com> Reviewed-by: NEric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 5月, 2011 1 次提交
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由 Heiko Carstens 提交于
Merge irq.c and s390_ext.c into irq.c. That way all external interrupt related functions are together. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 10 5月, 2011 1 次提交
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由 Christian Borntraeger 提交于
arch/s390/kvm/sie64a.S uses the b280 instruction. Tell the builtin disassembler to handle that code. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 25 10月, 2010 1 次提交
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由 Martin Schwidefsky 提交于
Add the new instructions introduced with z196 to the kernel disassembler. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 27 2月, 2010 1 次提交
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由 Martin Schwidefsky 提交于
Add the instruction of the z9-ec and z10 machines to the kernel disassembler. Add the missing "ptff" instruction of z9-109 and the missing "sqd" of g5. Remove useless comments with instruction examples from format table. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 13 7月, 2009 1 次提交
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由 Alexey Dobriyan 提交于
* Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 30 5月, 2008 1 次提交
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由 Martin Schwidefsky 提交于
The correct instruction format of idte is "idte r1,r3,r2" with r1 at bit 24, r3 at bit 16 and r2 at bit 28. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 12 10月, 2007 2 次提交
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由 Christian Borntraeger 提交于
There is no need to assign "0" to "hops" twice. Remove one assigment. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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由 Martin Schwidefsky 提交于
The termination condition of the loop that prints the operands of an instruction doesn't stop after the maximum of 6 operands. It continues with the operands of the next instruction format instead which create really long lines. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 22 8月, 2007 1 次提交
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由 Christian Borntraeger 提交于
The instruction table for b2 opcodes was missing an opfrag value for the cpya instruction. All instructions specified after cpya were not considered by the disassembler. The fix is simple and obvious - add the opfrag field to the cpya instruction. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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- 17 7月, 2007 1 次提交
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由 Christian Borntraeger 提交于
The instructions with format RX_URRD and SI_URD and instructions with a PC relative operand are not disassembled correctly. For RX_URRD and SI_URD instructions find_insn sets opfrag to code[0]. The mask byte of these two formats is 0x00. table->opfrag will never be identical to (opfrag & opmask) and no matching instruction will be found. Set the mask byte to 0xff to actually check byte 0 against the table. For PC relative instructions the (unsigned) offset value needs to be casted to an signed integer so that negative branch offsets are handled correctly. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 09 5月, 2007 1 次提交
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由 Adrian Bunk 提交于
Include the new linux/kdebug.h instead of asm/kdebug.h. Simply remove the asm/kdebug.h include if both had been included. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 4月, 2007 1 次提交
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由 Martin Schwidefsky 提交于
This patch adds two improvements to the oops output. First it adds an additional line after the PSW which decodes the different fields of it. Second a disassembler is added that decodes the instructions surrounding the faulting PSW. The output of a test oops now looks like this: kernel BUG at init/main.c:419 illegal operation: 0001 [#1] CPU: 0 Not tainted Process swapper (pid: 0, task: 0000000000464968, ksp: 00000000004be000) Krnl PSW : 0700000180000000 00000000000120b6 (rest_init+0x36/0x38) R:0 T:1 IO:1 EX:1 Key:0 M:0 W:0 P:0 AS:0 CC:0 PM:0 EA:3 Krnl GPRS: 0000000000000003 00000000004ba017 0000000000000022 0000000000000001 000000000003a5f6 0000000000000000 00000000004be6a8 0000000000000000 0000000000000000 00000000004b8200 0000000000003a50 0000000000008000 0000000000516368 000000000033d008 00000000000120b2 00000000004bdee0 Krnl Code: 00000000000120a6: e3e0f0980024 stg %r14,152(%r15) 00000000000120ac: c0e500014296 brasl %r14,3a5d8 00000000000120b2: a7f40001 brc 15,120b4 >00000000000120b6: 0707 bcr 0,%r7 00000000000120b8: eb7ff0500024 stmg %r7,%r15,80(%r15) 00000000000120be: c0d000195825 larl %r13,33d108 00000000000120c4: a7f13f00 tmll %r15,16128 00000000000120c8: a7840001 brc 8,120ca Call Trace: ([<00000000000120b2>] rest_init+0x32/0x38) [<00000000004be614>] start_kernel+0x37c/0x410 [<0000000000012020>] _ehead+0x20/0x80 Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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