| a0616cdebcfd575dcd4c46102d1b52fbb827fc29 |
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28-Mar-2012 |
David Howells <dhowells@redhat.com> |
Disintegrate asm/system.h for S390
Disintegrate asm/system.h for S390.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-s390@vger.kernel.org
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| fc89db4b789fc9edf88440f6896f04a879ed3b46 |
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23-Mar-2012 |
Akinobu Mita <akinobu.mita@gmail.com> |
s390/char: use for_each_clear_bit()
Use for_each_clear_bit() to iterate over all the cleared bit in a
memory region.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| b50511e41aa51a89b4176784a670582424bc7db6 |
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30-Oct-2011 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] cleanup psw related bits and pieces
Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS
to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function
enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros.
Change psw_kernel_bits / psw_user_bits to contain only the bits that
are always set in the respective mode.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 8adb4ca344b48bbbf87ca66fd07a2dd503619714 |
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24-Aug-2011 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] memory hotplug: only unassign assigned increments
Make sure that only assigned storage increments are unassigned when
attaching a storage element.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| fdb1bb157525907163e2a0c96fe8bb19fbe867a8 |
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10-May-2011 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] sclp/memory hotplug: fix initial usecount of increments
Fix initial usecount of attached and assigned storage increments so
they can be set offline.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 9c95258c0d5911ae263bf50d854e402ce973ab32 |
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24-Mar-2010 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] sclp: avoid 64 bit division
Avoid 64 bit division to fix this compile error on 32 bit:
drivers/s390/char/sclp_cmd.c:711: undefined reference to `__udivdi3'
Also move the whole arch_get_memory_phys_device function to the
memory hotplug related functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 57b552ba0b2faf7cce66d476ef8ce7f6210c62fd |
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15-Mar-2010 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
memory hotplug/s390: set phys_device
Implement arch specific arch_get_memory_phys_device function and
initialize phys_device for each memory section. That way we finally can
tell which piece of memory belongs to which physical device.
This makes s390's /sys/devices/system/memory/memoryX/phys_device display
the correct thing?
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| 471452104b8520337ae2fb48c4e61cd4896e025d |
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15-Dec-2009 |
Alexey Dobriyan <adobriyan@gmail.com> |
const: constify remaining dev_pm_ops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| cb9d71604a6e3d6aa93bb663747a62fc520da483 |
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07-Dec-2009 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] sclp: improve servicability setting
Set dump indicator on read-scp-info command to get meaningful dumps.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 039979049834bde56f67f8078c802b416bd4763c |
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16-Jun-2009 |
Gerald Schaefer <gerald.schaefer@de.ibm.com> |
[S390] pm: memory hotplug power management callbacks
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 23d75d9cadd79bc9fd6553857d57c679cf18d4cb |
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19-Feb-2009 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] fix "mem=" handling in case of standby memory
Standby memory detected with the sclp interface gets always registered
with add_memory calls without considering the limitationt that the
"mem=" kernel paramater implies.
So fix this and only register standby memory that is below the specified
limit.
This fixes zfcpdump since it uses "mem=32M". In case there is appr.
2GB standby memory present all of usable memory would be used for the
struct pages needed for standby memory.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| b3ff088b3025c3583194edd7576215b61333111f |
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25-Dec-2008 |
Martin Schwidefsky <schwidefsky@de.ibm.com> |
[S390] convert sclp printks to pr_xxx macros.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 675be97a32a5f12650b86391b7431f1e10811f1e |
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14-Nov-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] sclp: emit error message if assign storage fails
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 7e9238fbc10373effc2c3b0b516b0bdc8fefc27b |
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01-Aug-2008 |
Gerald Schaefer <gerald.schaefer@de.ibm.com> |
[S390] Add support for memory hot-remove.
This patch enables memory hot-remove on s390.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 23d1742179170b69e61ac9166248ffd64857e55a |
|
14-Jul-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Move memory detection code to own file.
Move memory detection code to own file and also simplify it.
Also add an interface which can be called at any time to get the
current memory layout. This interface is needed by our kernel
internal system dumper.
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| e0bc24958e1305efe176adc9d5f23a09e84c0058 |
|
14-Jul-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Add support for memory hot-add via sclp.
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 48483b3290988952a593c6e66ca354c19f1a4350 |
|
26-Jan-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Get rid of additional_cpus kernel parameter.
It caused only a lot of confusion. From now on cpu hotplug of up to
NR_CPUS will work by default. If somebody wants to limit that then
the possible_cpus parameter can be used.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 4b28a8fe78bd593cdc4454cf28af71ca9556914d |
|
26-Jan-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] sclp: convert channel path configure code to use sync interface.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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| 08d07968277cd898c88bf12b7720d89c02c4f139 |
|
26-Jan-2008 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] Standby cpu activation/deactivation.
Add a new interface so that cpus can be put into standby state and
configured state.
Only offline cpus can be put into standby state or configured state.
For that the new percpu sysfs attribute "configure" must be used.
To put a cpu in standby state a "0" must be written to the attribute.
In order to switch it into configured state a "1" must be written to
the attribute.
Only cpus in configured state can be brought online.
In addition this patch introduces a static mapping of physical to
logical cpus. As a result only the sysfs directories of present cpus
will be created. To scan for new cpus the new sysfs attribute "rescan"
must be used.
Writing to /sys/devices/system/cpu/rescan will trigger a rescan of
cpus and will create directories for new cpus.
On IPL only configured cpus will be used. And on reboot/shutdown all
cpus will remain in their current state (configured/standby).
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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