freebsd-dev/sys/amd64
Andrew Turner 3fd63ddfdf Limit when we call DELAY from KCSAN on amd64
In some cases the DELAY implementation on amd64 can recurse on a spin
mutex in the i8254 early delay code. Detect when this is going to
happen and don't call delay in this case. It is safe to not delay here
with the only issue being KCSAN may not detect data races.

Reviewed by:	kib
Tested by:	arichardson
Sponsored by:	Innovate UK
Differential Revision:	https://reviews.freebsd.org/D28895
2021-02-25 12:38:05 +00:00
..
acpica amd64: clean up empty lines in .c and .h files 2020-09-01 21:16:54 +00:00
amd64 amd64: implement strlen in assembly, take 2 2021-02-21 00:43:05 +00:00
cloudabi32 Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
cloudabi64 Get rid of sa->narg. It serves no purpose; use sa->callp->sy_narg instead. 2020-09-27 18:47:06 +00:00
conf smbios: Move smbios driver out from x86 machdep code 2021-02-23 21:17:09 +00:00
ia32 Improve FPU Tag Word reconstruction on i386 to indicate register states. 2020-10-21 00:15:12 +00:00
include Limit when we call DELAY from KCSAN on amd64 2021-02-25 12:38:05 +00:00
linux linux: Unmap the VDSO page when unloading 2021-02-16 09:40:02 -05:00
linux32 linux: Unmap the VDSO page when unloading 2021-02-16 09:40:02 -05:00
pci pci_cfgreg.c: Use io port config access for early boot time. 2019-04-09 18:07:17 +00:00
sgx Convert remaining cap_rights_init users to cap_rights_init_one 2021-01-12 13:16:10 +00:00
vmm bhyve/ioapic: improve the tracking of IRR bit 2021-02-02 09:47:00 +01:00
Makefile