kernel_optimize_test/drivers/s390/char
Hendrik Brueckner 1d3f9094c6 s390/sclp_vt220: support magic sysrequests
Implement magic sysrequest handling for the VT220 terminal (also known as
the Integrated ASCII console on the HMC/SE).
To invoke a "magic sysrequest" function, press "Ctrl+o" followed by a
second character that designates the debugging function.

The handling of the sysrq is scheduled away from the SCLP IRQ context;
because large amounts of sysrq output might fill up the console buffers.
The console might deadlock because it cannot empty the buffers while still
in the receiving IRQ context.  This behavior is the same as for the SCLP
console.

Reported-by: Horst Weber <hweber@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-08-26 17:20:45 +02:00
..
con3215.c s390/3215: free memory in error path 2015-04-23 16:55:50 +02:00
con3270.c s390/3270: redraw screen on unsolicited device end 2015-08-26 17:19:49 +02:00
ctrlchar.c s390/ctrlchar: improve handling of magic sysrequests 2015-08-26 17:20:44 +02:00
ctrlchar.h s390/ctrlchar: improve handling of magic sysrequests 2015-08-26 17:20:44 +02:00
defkeymap.c
defkeymap.map
diag_ftp.c s390/hmcdrv: fix interrupt registration 2015-08-19 10:40:17 +02:00
diag_ftp.h
fs3270.c
hmcdrv_cache.c
hmcdrv_cache.h
hmcdrv_dev.c
hmcdrv_dev.h
hmcdrv_ftp.c s390/hmcdrv: free memory on error path 2015-01-22 12:16:11 +01:00
hmcdrv_ftp.h
hmcdrv_mod.c s390/hmcdrv: remove unnecessary version.h inclusion 2015-01-15 11:11:16 +01:00
Kconfig s390: remove 31 bit support 2015-03-25 11:49:33 +01:00
keyboard.c s390/keyboard: avoid off-by-one when using strnlen_user() 2015-06-15 10:51:12 +02:00
keyboard.h
Makefile
monreader.c s390: remove unneeded semicolon 2015-08-07 09:57:00 +02:00
monwriter.c
raw3270.c
raw3270.h
sclp_async.c
sclp_cmd.c s390/numa: add emulation support 2015-08-04 14:06:53 +02:00
sclp_con.c
sclp_config.c
sclp_cpi_sys.c
sclp_cpi_sys.h
sclp_cpi.c
sclp_ctl.c
sclp_diag.h
sclp_early.c s390/sclp: fix compile error 2015-07-01 09:34:38 +02:00
sclp_ftp.c
sclp_ftp.h
sclp_ocf.c
sclp_quiesce.c
sclp_rw.c
sclp_rw.h
sclp_sdias.c s390/sclp: pass timeout as HZ independent value 2015-06-15 10:50:57 +02:00
sclp_sdias.h
sclp_tty.c
sclp_tty.h
sclp_vt220.c s390/sclp_vt220: support magic sysrequests 2015-08-26 17:20:45 +02:00
sclp.c s390/sclp: Change SCLP console default buffer-full behavior 2015-07-22 09:58:05 +02:00
sclp.h s390/sclp: move sclp_facilities into "struct sclp" 2015-05-13 09:58:18 +02:00
tape_34xx.c s390/tape: remove redundant if statement 2015-01-22 12:51:49 +01:00
tape_3590.c
tape_3590.h
tape_char.c
tape_class.c
tape_class.h
tape_core.c
tape_proc.c
tape_std.c
tape_std.h
tape.h
tty3270.c s390/3270: redraw screen on unsolicited device end 2015-08-26 17:19:49 +02:00
tty3270.h
vmcp.c
vmcp.h
vmlogrdr.c
vmur.c
vmur.h
zcore.c s390/kdump: fix nosmt kernel parameter 2015-06-25 09:39:26 +02:00