| d997c00c5a9b61474f7ff5f27ed64173bb007987 |
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17-Jun-2014 |
Michael Ellerman <mpe@ellerman.id.au> |
powerpc: Add ppc_global_function_entry()
ABIv2 has the concept of a global and local entry point to a function.
In most cases we are interested in the local entry point, and so that is
what ppc_function_entry() returns.
However we have a case in the ftrace code where we want the global entry
point, and there may be other places we need it too. Rather than special
casing each, add an accessor.
For ABIv1 and 32-bit there is only a single entry point, so we return
that. That means it's safe for the caller to use this without also
checking the ABI version.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| c71b7eff426fa7d8fd33e0964a7f79a3b41faff9 |
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04-Feb-2014 |
Anton Blanchard <anton@samba.org> |
powerpc: Add ABIv2 support to ppc_function_entry
Skip over the well known global entry point code for ABIv2.
Signed-off-by: Anton Blanchard <anton@samba.org>
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| 1e8341ae0c0e117f0626cd6cf6732a0a9c8723f2 |
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12-May-2013 |
Kevin Hao <haokexin@gmail.com> |
powerpc: Move the patch_exception to a common place
So that it can be used by other codes. No function change.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| b6e3796834faefe4b6e9a2aedfe12665cd51fbc5 |
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26-Apr-2012 |
Steven Rostedt <srostedt@redhat.com> |
powerpc: Have patch_instruction detect faults
For ftrace to use the patch_instruction code, it needs to check for
faults on write. Ftrace updates code all over the kernel, and we need to
know if code is updated or not due to protections that are placed on
some portions of the kernel. If ftrace does not detect a fault, it will
error later on, and it will be much more difficult to find the problem.
By changing patch_instruction() to detect faults, then ftrace will be
able to make use of it too.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| 16c57b3620d77e0bc981da5ef32beae730512684 |
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10-Feb-2009 |
Kumar Gala <galak@kernel.crashing.org> |
powerpc: Unify opcode definitions and support
Create a new header that becomes a single location for defining PowerPC
opcodes used by code that is either generationg instructions
at runtime (fixups, debug, etc.), emulating instructions, or just
compiling instructions old assemblers don't know about.
We currently don't handle the floating point emulation or alignment decode
as both are better handled by the specific decode support they already
have.
Added support for the new dcbzl, dcbal, msgsnd, tlbilx, & wait instructions
since older assemblers don't know about them.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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| b8b572e1015f81b4e748417be2629dfe51ab99f9 |
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01-Aug-2008 |
Stephen Rothwell <sfr@canb.auug.org.au> |
powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a
mkdir arch/powerpc/include/asm
git mv include/asm-powerpc/* arch/powerpc/include/asm
Followed by a few documentation/comment fixups and a couple of places
where <asm-powepc/...> was being used explicitly. Of the latter only
one was outside the arch code and it is a driver only built for powerpc.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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