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42d02b81f2
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Ian Munsie 42d02b81f2 powerpc: Define differences between doorbells on book3e and book3s 
There are a few key differences between doorbells on server compared
with embedded that we care about on Linux, namely:

- We have a new msgsndp instruction for directed privileged doorbells.
  msgsnd is used for directed hypervisor doorbells.
- The tag we use in the instruction is the Thread Identification
  Register of the recipient thread (since server doorbells can only
  occur between threads within a single core), and is only 7 bits wide.
- A new message type is introduced for server doorbells (none of the
  existing book3e message types are currently supported on book3s).

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Tested-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-10 15:09:05 +11:00
..
alpha ALPHA: drivers: remove __dev* attributes. 2013-01-03 15:57:13 -08:00
arm Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2013-01-09 08:58:57 -08:00
arm64 - Missing include in asm/compat.h. 2013-01-04 10:41:54 -08:00
avr32 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
blackfin ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
c6x These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
cris ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
frv ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
h8300 These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
hexagon Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
ia64 Driver core __dev* removal patches 2013-01-03 16:17:50 -08:00
m32r ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
m68k ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
microblaze Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2013-01-07 07:39:32 -08:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-01-07 07:50:41 -08:00
mn10300 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
openrisc ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
parisc ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
powerpc powerpc: Define differences between doorbells on book3e and book3s 2013-01-10 15:09:05 +11:00
s390 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
score ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
sh ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
sparc SPARC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
tile ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
unicore32 ARCH: drivers remove __dev* attributes. 2013-01-03 15:57:13 -08:00
x86 X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
xtensa These are a few cleanups for asm-generic: 2012-12-21 16:39:08 -08:00
.gitignore
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00