kernel-ark/arch/blackfin/kernel
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
..
asm-offsets.c wrap access to thread_info 2007-05-09 12:30:56 -07:00
bfin_dma_5xx.c Blackfin arch: initial supporting for BF548-EZKIT 2007-07-12 22:41:45 +08:00
bfin_gpio.c Blackfin arch: fix bug can not wakeup from sleep via push buttons 2007-06-14 13:30:23 +08:00
bfin_ksyms.c blackfin architecture 2007-05-07 12:12:58 -07:00
dma-mapping.c blackfin architecture 2007-05-07 12:12:58 -07:00
dualcore_test.c blackfin architecture 2007-05-07 12:12:58 -07:00
entry.S Blackfin arch: add proper ENDPROC() 2007-06-11 15:31:30 +08:00
fixed_code.S Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
flat.c blackfin architecture 2007-05-07 12:12:58 -07:00
init_task.c blackfin architecture 2007-05-07 12:12:58 -07:00
irqchip.c Blackfin arch: spelling fixes 2007-06-11 15:31:30 +08:00
Makefile Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
module.c blackfin architecture 2007-05-07 12:12:58 -07:00
process.c Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
ptrace.c rename thread_info to stack 2007-05-09 12:30:56 -07:00
setup.c Blackfin arch: defines and provides entry points for certain user space functions at fixed addresses 2007-06-21 11:34:16 +08:00
signal.c blackfin architecture 2007-05-07 12:12:58 -07:00
sys_bfin.c blackfin architecture 2007-05-07 12:12:58 -07:00
time.c blackfin architecture 2007-05-07 12:12:58 -07:00
traps.c Blackfin arch: Fix up remaining printks with proper log levels 2007-06-25 18:05:53 +08:00
vmlinux.lds.S Blackfin arch: redo our linker script a bit 2007-06-11 17:27:05 +08:00