linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2014-06-24	powerpc: Add ppc_global_function_entry()	Michael Ellerman	1	-0/+11
	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>
2014-04-23	powerpc: Add ABIv2 support to ppc_function_entry	Anton Blanchard	1	-4/+36
	Skip over the well known global entry point code for ABIv2. Signed-off-by: Anton Blanchard <anton@samba.org>
2013-12-02	powerpc: Move the patch_exception to a common place	Kevin Hao	1	-0/+7
	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>
2012-07-03	powerpc: Have patch_instruction detect faults	Steven Rostedt	1	-2/+2
	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>
2009-02-23	powerpc: Unify opcode definitions and support	Kumar Gala	1	-3/+1
	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>
2008-08-04	powerpc: Move include files to arch/powerpc/include/asm	Stephen Rothwell	1	-0/+54
	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>