talos-op-linux/drivers/s390/char/Kconfig, branch master

s390/sclp: remove call home support

2019-06-19T15:54:27+00:00

This feature has never been used, so remove it. Acked-by: Vasily Gorbik Acked-by: Hendrik Brueckner Signed-off-by: Heiko Carstens Signed-off-by: Vasily Gorbik

s390/Kconfig: pedantic cleanups

2019-06-04T13:03:46+00:00

Formatting of Kconfig files doesn't look so pretty, so just take damp cloth and clean it up. Signed-off-by: Enrico Weigelt, metux IT consult Signed-off-by: Heiko Carstens

s390: add a few more SPDX identifiers

2017-12-05T06:51:09+00:00

Add the correct SPDX license to a few more files under arch/s390 and drivers/s390 which have been missed to far. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Martin Schwidefsky

s390/vmcp: make use of contiguous memory allocator

2017-08-09T13:09:35+00:00

If memory is fragmented it is unlikely that large order memory allocations succeed. This has been an issue with the vmcp device driver since a long time, since it requires large physical contiguous memory ares for large responses. To hopefully resolve this issue make use of the contiguous memory allocator (cma). This patch adds a vmcp specific vmcp cma area with a default size of 4MB. The size can be changed either via the VMCP_CMA_SIZE config option at compile time or with the "vmcp_cma" kernel parameter (e.g. "vmcp_cma=16m"). For any vmcp response buffers larger than 16k memory from the cma area will be allocated. If such an allocation fails, there is a fallback to the buddy allocator. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/sclp: add open for business support

2015-11-27T08:24:18+00:00

Provide a user space interface and an enhancement to the sclp device driver which allows to send an 'Open for Business' event from the operating system to the Support Element. The 'Open for Business' event is used to signal the Support Element that the operating system (or an application running on top of it) is up and running. Signed-off-by: Jochen Schweflinghaus Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/sclp_cpi: remove sclp_cpi module in favor of sysfs interface

2015-11-27T08:24:16+00:00

Since commit c05ffc4f2b20 ("[S390] sclp: sysfs interface for SCLP cpi"), which was made 2008 the user can specify a system and sysplex name through the /sys/firmware/cpi interface. In addition to sysplex and system name, the user can also override the system type and system version. Because the syfs interface is easier to use and allows the settings to be updated, the sclp_cpi module becomes obsolete and can be removed. Signed-off-by: Hendrik Brueckner Acked-by: Christian Borntraeger Acked-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: remove 31 bit support

2015-03-25T10:49:33+00:00

Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/sclp_async: add Kconfig option to specify the component id

2014-11-28T08:45:11+00:00

Allow to specify the Compoment ID for Call Home via the kernel configuration. This removes the need for distribution specific patch against the sclp_async.c source file. Signed-off-by: Martin Schwidefsky

s390/hmcdrv: Restrict s390 HMC driver to S390 arch

2014-10-15T14:56:26+00:00

This driver is only usable on 64-bit s390 machines. Mark the Kconfig dependencies to that users on other architectures are not prompted for it. Fixes: 8f933b1043e1e5 ("s390/hmcdrv: HMC drive CD/DVD access") Signed-off-by: Josh Boyer Signed-off-by: Martin Schwidefsky

s390/hmcdrv: HMC drive CD/DVD access

2014-09-25T08:52:02+00:00

This device driver allows accessing a HMC drive CD/DVD-ROM. It can be used in a LPAR and z/VM environment. Reviewed-by: Martin Schwidefsky Reviewed-by: Heiko Carstens Signed-off-by: Ralf Hoppe Signed-off-by: Martin Schwidefsky