Andrew Turner 17fb49c1e4 An IPI must be cleared before it is handled otherwise next IPI could be ... missed. In other words, if a new request for an IPI is sent while the previous request is being handled but the IPI is not cleared yet, the clearing of the previous IPI request also clears the new one and the handling is missed. There are only three MP interrupt controllers in ARM now. Two of them are fixed by this change, the third one is correct, probably only just by accident. The fix is minimalistic as new interrupt framework is awaited. It was debugged on RPi2 where missing IPI handling together with SCHED_ULE led to situation in which tdq_ipipending was not cleared and so IPI_PREEMPT was stopped to be sent. Various odditys were found related to slow system response time like various events timed out, and slow console response. Submitted by: Svatopluk Kraus <onwahe@gmail.com> Reviewed by: loos, kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D3722		2015-10-01 12:09:05 +00:00
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armadaxp	Include vm/pmap.h for pmap_kextract.	2015-04-04 23:03:11 +00:00
discovery	Remove STARTUP_PAGETABLE_ADDR from the ARM configs and replace it with	2014-01-28 09:12:04 +00:00
kirkwood	Remove STARTUP_PAGETABLE_ADDR from the ARM configs and replace it with	2014-01-28 09:12:04 +00:00
orion	When mapping device memory, use PTE_DEVICE rather than PTE_NOCACHE.	2014-05-10 20:03:03 +00:00
files.mv	Build the cpufunc_asm_* files based on the cpu type, not which config file	2015-03-29 22:43:39 +00:00
gpio.c	Stop using machine/fdt.h in the arm kernel code when we don't need it.	2015-04-04 21:34:26 +00:00
ic.c	Follow r261352 by updating all drivers which are children of simplebus	2014-02-02 19:17:28 +00:00
mpic.c	An IPI must be cleared before it is handled otherwise next IPI could be	2015-10-01 12:09:05 +00:00
mv_common.c	Follow r275792 eliminating fdt_data_verify().	2014-12-15 11:57:39 +00:00
mv_localbus.c	Move the definition of fdt_localbus_devmap to a Marvell specific file as	2015-04-04 22:05:43 +00:00
mv_machdep.c	Add the start of the ARM platform code. This is based on the PowerPC	2014-05-17 11:27:36 +00:00
mv_pci.c	Fix typo.	2014-12-15 12:15:18 +00:00
mv_ts.c	Stop using machine/fdt.h in the arm kernel code when we don't need it.	2015-04-04 21:34:26 +00:00
mvreg.h	Corrects the Kirkwood dreamplug to use	2013-10-19 06:47:02 +00:00
mvvar.h	Move the definition of fdt_localbus_devmap to a Marvell specific file as	2015-04-04 22:05:43 +00:00
mvwin.h	Disable decoding windows with no FDT entry.	2013-05-06 14:54:17 +00:00
rtc.c	Follow r261352 by updating all drivers which are children of simplebus	2014-02-02 19:17:28 +00:00
std-pj4b.mv	Remove -Wa,-march=armv7a from arm kernel configs, it makes clang 3.5 sad	2015-01-01 23:21:46 +00:00
std.mv
timer.c	Replace many pasted identical definitions of cpu_initclocks() with a common	2014-02-26 22:06:10 +00:00
twsi.c	Follow r261352 by updating all drivers which are children of simplebus	2014-02-02 19:17:28 +00:00