linux.git/arch/powerpc/sysdev, branch v3.0.42

arch/powerpc/sysdev/fsl_rio.c: correct IECSR register clear value

2011-10-03T18:39:46+00:00

commit 671ee7f0ce62e4b991b47fcf1c161c3f710dabbc upstream.

This bug causes the IECSR register clear failure.  In this case, the RETE
(retry error threshold exceeded) interrupt will be generated and cannot be
cleared.  So the related ISR may be called persistently.

The RETE bit in IECSR is cleared by writing a 1 to it.

Signed-off-by: Liu Gang 
Cc: Benjamin Herrenschmidt 
Cc: Kumar Gala 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

arch/powerpc: use printk_ratelimited instead of printk_ratelimit

2011-06-29T05:31:01+00:00

Since printk_ratelimit() shouldn't be used anymore (see comment in
include/linux/printk.h), replace it with printk_ratelimited.

Signed-off-by: Christian Dietrich 
Signed-off-by: Benjamin Herrenschmidt

powerpc/e500: fix breakage with fsl_rio_mcheck_exception

2011-06-22T11:15:16+00:00

The wrong MCSR bit was being used on e500mc.  MCSR_BUS_RBERR only exists
on e500v1/v2.  Use MCSR_LD on e500mc, and remove all MCSR checking
in fsl_rio_mcheck_exception as we now no longer call that function
if the appropriate bit in MCSR is not set.

If RIO support was enabled at compile-time, but was never probed, just
return from fsl_rio_mcheck_exception rather than dereference a NULL
pointer.

TODO: There is still a remaining, though comparitively minor, issue in
that this recovery mechanism will falsely engage if there's an unrelated
MCSR_LD event at the same time as a RIO error.

Signed-off-by: Scott Wood 
Signed-off-by: Kumar Gala

powerpc/85xx: fix race bug of calling request_irq after enable elbc interrupts

2011-06-03T05:09:09+00:00

Signed-off-by: Shaohui Xie 
Signed-off-by: Kumar Gala

Merge remote branch 'kumar/merge' into merge

2011-05-26T23:58:22+00:00

powerpc/4xx: Adding PCIe MSI support

2011-05-26T05:00:37+00:00

This patch adds MSI support for 440SPe, 460Ex, 460Sx and 405Ex.

Signed-off-by: Rupjyoti Sarmah 
Signed-off-by: Tirumala R Marri 
Acked-by: Josh Boyer 
Signed-off-by: Benjamin Herrenschmidt

powerpc/fsl_rio: Error interrupt handler for sRIO on MPC85xx

2011-05-20T13:47:45+00:00

The sRIO controller reports errors to the core with one signal, it uses
register EPWISR to provides the core quick access to where the error
occurred.  The EPWISR indicates that there are 4 interrupts sources,
port1, port2, message unit and port write receive, but the sRIO driver
does not support port2 for now, still the handler takes care of port2.
Currently the handler only clear error status without any recovery.

Signed-off-by: Shaohui Xie 
Cc: Li Yang 
Cc: Kumar Gala 
Cc: Roy Zang 
Cc: Alexandre Bounine 
Signed-off-by: Kumar Gala

powerpc/fsl_rio: move machine_check handler

2011-05-20T13:46:57+00:00

Add support for machine_check support into machine_check_e500 and
machine_check_e500mc.

Signed-off-by: Shaohui Xie 
Cc: Li Yang 
Cc: Roy Zang 
Cc: Alexandre Bounine 
Signed-off-by: Kumar Gala

powerpc/fsl_lbc: Add workaround for ELBC-A001 erratum

2011-05-20T13:46:49+00:00

Simultaneous FCM and GPCM or UPM operation may erroneously trigger
bus monitor timeout.

Set the local bus monitor timeout value to the maximum by setting
LBCR[BMT] = 0 and LBCR[BMTPS] = 0xF.

Signed-off-by: Shengzhou Liu 
Signed-off-by: Kumar Gala

Merge remote branch 'origin/master' into merge

2011-05-20T05:36:52+00:00

Manual merge of arch/powerpc/kernel/smp.c and add missing scheduler_ipi()
call to arch/powerpc/platforms/cell/interrupt.c

Signed-off-by: Benjamin Herrenschmidt