Searched hist:cf1c47763ff624cea9a5fce2b1e7c52820f62752 (Results 1 – 4 of 4) sorted by relevance
| /freebsd/share/man/man9/ |
| H A D | fpu_kern.9 | diff cf1c47763ff624cea9a5fce2b1e7c52820f62752 Sun Sep 11 11:14:07 CEST 2016 Konstantin Belousov <kib@FreeBSD.org> Add FPU_KERN_NOCTX flag to the fpu_kern_enter() function on amd64.
The flag specifies that the block which uses FPU must be executed in
critical section, i.e. take no context switches, and does not need an
FPU save area during the execution.
It is intended to be applied around fast and short code pathes where
save area allocation is impossible or undesirable, due to context or
due to the relative cost of calculation vs. allocation.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| /freebsd/sys/amd64/include/ |
| H A D | fpu.h | diff cf1c47763ff624cea9a5fce2b1e7c52820f62752 Sun Sep 11 11:14:07 CEST 2016 Konstantin Belousov <kib@FreeBSD.org> Add FPU_KERN_NOCTX flag to the fpu_kern_enter() function on amd64.
The flag specifies that the block which uses FPU must be executed in
critical section, i.e. take no context switches, and does not need an
FPU save area during the execution.
It is intended to be applied around fast and short code pathes where
save area allocation is impossible or undesirable, due to context or
due to the relative cost of calculation vs. allocation.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| H A D | pcb.h | diff cf1c47763ff624cea9a5fce2b1e7c52820f62752 Sun Sep 11 11:14:07 CEST 2016 Konstantin Belousov <kib@FreeBSD.org> Add FPU_KERN_NOCTX flag to the fpu_kern_enter() function on amd64.
The flag specifies that the block which uses FPU must be executed in
critical section, i.e. take no context switches, and does not need an
FPU save area during the execution.
It is intended to be applied around fast and short code pathes where
save area allocation is impossible or undesirable, due to context or
due to the relative cost of calculation vs. allocation.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|
| /freebsd/sys/amd64/amd64/ |
| H A D | fpu.c | diff cf1c47763ff624cea9a5fce2b1e7c52820f62752 Sun Sep 11 11:14:07 CEST 2016 Konstantin Belousov <kib@FreeBSD.org> Add FPU_KERN_NOCTX flag to the fpu_kern_enter() function on amd64.
The flag specifies that the block which uses FPU must be executed in
critical section, i.e. take no context switches, and does not need an
FPU save area during the execution.
It is intended to be applied around fast and short code pathes where
save area allocation is impossible or undesirable, due to context or
due to the relative cost of calculation vs. allocation.
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
|