linux-toradex.git/arch/blackfin/kernel/entry.S, branch v3.6.1

Blackfin: delete fork func

2012-05-21T06:54:39+00:00

We don't implement fork() since we are no-mmu, so redirect it to the
existing ENOSYS stub rather than adding a custom EINVAL one.

Signed-off-by: Mike Frysinger 
Signed-off-by: Bob Liu

Blackfin: initial XIP support

2010-03-09T05:30:48+00:00

Signed-off-by: Barry Song 
Signed-off-by: Mike Frysinger

Blackfin: mass clean up of copyright/licensing info

2009-10-07T08:36:26+00:00

Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.

It also removes:
 - verbose GPL text(refer to the top level ./COPYING file)
 - file names (you are looking at the file)
 - bug url (it's in the ./MAINTAINERS file)
 - "or later" on GPL-2, when we did not have that right

It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).

Signed-off-by: Robin Getz 
Signed-off-by: Mike Frysinger

Blackfin: allow high priority domains to preempt schedule_tail()

2009-09-17T01:28:33+00:00

ret_from_fork is always entered with hw interrupts off, which prevents
real-time domains to preempt the Linux kernel during part of the
initial context switch to the new task, which could in turn raise the
worst-case latency figures.

To avoid this, stall the root domain stage in the interrupt pipeline
to keep the scheduling tail code free from Linux-handled IRQs, then
enable hardware interrupts again.

Signed-off-by: Philippe Gerum 
Signed-off-by: Mike Frysinger

Blackfin arch: merge adeos blackfin part to arch/blackfin/

2009-01-07T15:14:39+00:00

[Mike Frysinger :
 - handle bf531/bf532/bf534/bf536 variants in ipipe.h
 - cleanup IPIPE logic for bfin_set_irq_handler()
 - cleanup ipipe asm code a bit and add missing ENDPROC()
 - simplify IPIPE code in trap_c
 - unify some of the IPIPE code and fix style
 - simplify DO_IRQ_L1 handling with ipipe code
 - revert IRQ_SW_INT# addition from ipipe merge
 - remove duplicate get_{c,s}clk() prototypes
]

Signed-off-by: Yi Li 
Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code

2008-11-18T09:48:22+00:00

Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like

In this patch, we provide SMP extend to Blackfin kernel and memory management code

Singed-off-by: Graf Yang 
Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu

Blackfin arch: move include/asm-blackfin header files to arch/blackfin

2008-08-27T02:51:02+00:00

Signed-off-by: Bryan Wu

Blackfin arch: Add ANOMALY_05000368 workaround

2008-07-16T08:59:05+00:00

Possible RETS Register Corruption when Subroutine Is under 5 Cycles in Duration

Signed-off-by: Michael Hennerich 
Signed-off-by: Bryan Wu

Blackfin arch: Fix random crash issue found by Michael.

2007-10-29T10:14:15+00:00

This is fixes a problem where we could jump to the wrong address. By
doing a "p0 = reti; jump (p0)". If a different, higher level interrupt
came in, just before, rather than returning to the calling function, we
would return to a random place in the kernel.

This very elegant fix from Bernd grabs the return location off the
stack, and places it into P0, so when we do a return, it goes to the
correct place.

Signed-off-by: Robin Getz 
Signed-off-by: Bryan Wu

Blackfin arch: add proper ENDPROC()

2007-06-11T07:31:30+00:00

add proper ENDPROC() to close out assembly functions
so size/type is set properly in the final ELF image

Signed-off-by: Mike Frysinger 
Signed-off-by: Bryan Wu