linux.git/include/asm-powerpc/io.h, branch v2.6.26

[POWERPC] Add "memory" clobber to MMIO accessors

2008-05-31T07:08:28+00:00

Gcc might re-order MMIO accessors vs. surrounding consistent
memory accesses, which is a "bad thing", and could break drivers.
This fixes it by adding a "memory" clobber to the MMIO accessors,
which should prevent gcc from doing that reordering.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] devres: Add devm_ioremap_prot()

2008-05-05T06:47:14+00:00

We provide an ioremap_flags, so this provides a corresponding
devm_ioremap_prot.  The slight name difference is at Ben
Herrenschmidt's request as he plans on changing ioremap_flags to
ioremap_prot in the future.

Signed-off-by: Emil Medve 
Signed-off-by: Kumar Gala 
Acked-by: Tejun Heo 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[POWERPC] cell: Generalize io-workarounds code

2008-04-24T11:08:12+00:00

This splits cell io-workaround code into spider-pci dependent code and
a generic part, and also moves io-workarounds initialization into
cell_setup_phb.

Signed-off-by: Kou Ishizaki 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Make isa_mem_base common to 32 and 64 bits

2007-12-11T04:43:34+00:00

This defines isa_mem_base on both 32 and 64 bits (it used to be 32 bits
only).  This avoids a few ifdef's in later patches and potentially can
allow support for VGA text mode on 64 bits powerpc.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

Spelling fix: explicitly

2007-10-19T21:22:55+00:00

From: Jean Delvare 

Signed-off-by: Jean Delvare 
Signed-off-by: Adrian Bunk

Remove dma_cache_(wback|inv|wback_inv) functions

2007-10-17T15:42:57+00:00

dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized
cache managment API for I/O purposes.  Originally it was basically the raw
MIPS low level cache API exported to the entire world.  The API has
suffered from a lack of documentation, was not very widely used unlike it's
more modern brothers and can easily be replaced by dma_cache_sync.  So
remove it rsp.  turn the surviving bits back into an arch private API, as
discussed on linux-arch.

Signed-off-by: Ralf Baechle 
Acked-by: Paul Mundt 
Acked-by: Paul Mackerras 
Acked-by: David S. Miller 
Acked-by: Kyle McMartin 
Acked-by: Haavard Skinnemoen 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

endian-clean in_le64/out_le64

2007-10-14T19:41:51+00:00

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[POWERPC] ppc64: support CONFIG_DEBUG_PREEMPT

2007-10-03T01:48:44+00:00

Add CONFIG_DEBUG_PREEMPT support to ppc64: it was useful for testing
get_paca() preemption.  Cheat a little, just use debug_smp_processor_id()
in the debug version of get_paca(): it contains all the right checks and
reporting, though get_paca() doesn't really use smp_processor_id().

Use local_paca for what might have been called __raw_get_paca().
Silence harmless warnings from io.h and lparcfg.c with local_paca -
it is okay for iseries_lparcfg_data to be referencing shared_proc
with preemption enabled: all cpus should show the same value for
shared_proc.

Why do other architectures need TRACE_IRQFLAGS_SUPPORT for DEBUG_PREEMPT?
I don't know, ppc64 appears to get along fine without it.

Signed-off-by: Hugh Dickins 
Signed-off-by: Paul Mackerras

[POWERPC] add clrsetbits macros

2007-09-14T13:53:56+00:00

This patch adds the clrsetbits_xxx() macros, which are used to set and clear
multiple bits in a single read-modify-write operation.  Specify the bits to
clear in the 'clear' parameter and the bits to set in the 'set' parameter.
These macros can also be used to set a multiple-bit bit pattern using a mask,
by specifying the mask in the 'clear' parameter and the new bit pattern in the
'set' parameter.  There are big-endian and little-endian versions for 8, 16,
32, and 64 bits.

Signed-off-by: Timur Tabi 
Signed-off-by: Kumar Gala

[POWERPC] Add clrbits8 and setbits8

2007-08-22T05:21:47+00:00

Signed-off-by: Scott Wood 
Signed-off-by: Paul Mackerras