linux_dsm_epyc7002/arch/blackfin
Bernd Schmidt 7adfb58fbd Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses
This patch defines (and provides) entry points for certain user space functions
at fixed addresses.  The Blackfin has no usable atomic instructions, but we can
ensure that these code sequences appear atomic from a user space point of view
by detecting when we're in the process of executing them during the interrupt
handler return path.  This allows much more efficient pthread lock
implementations than the bfin_spinlock syscall we're currently using.

Also provided is a small sys_rt_sigreturn stub which can be used by the signal
handler setup code.  The signal.c part will be committed separately.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21 11:34:16 +08:00
..
boot blackfin architecture 2007-05-07 12:12:58 -07:00
configs Blackfin arch: update board defconfig files 2007-07-02 13:49:15 +08:00
kernel Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
lib Blackfin arch: update ANOMALY handling 2007-06-21 11:34:16 +08:00
mach-bf533 Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
mach-bf537 Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
mach-bf548 Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
mach-bf561 Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
mach-common Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
mm Blackfin arch: make sure we initialize our L1 Data B section properly based on the linked kernel 2007-06-14 13:33:37 +08:00
oprofile blackfin architecture 2007-05-07 12:12:58 -07:00
Kconfig Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
Makefile Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00