Re: [PATCH 2/2] powerpc, ftrace: use create_branch lib function

2009-02-14 Thread Michael Ellerman
On Fri, 2009-02-13 at 10:00 -0500, Steven Rostedt wrote: plain text document attachment (0002-powerpc-ftrace-use-create_branch-lib-function.patch) From: Steven Rostedt srost...@redhat.com Impact: clean up, remove duplicate code When ftrace was first ported to PowerPC, there existed a

Re: [PATCH] powerpc: New cpu type shows up as unknown even when logical PVR is recognized

2009-02-14 Thread Michael Ellerman
On Fri, 2009-02-13 at 14:45 -0600, Dave Kleikamp wrote: When identify_cpu() is called a second time with a logical PVR, it only copies a subset of the cpu_spec structure to avoid overwriting the performance monitor fields that were initialized based on the real PVR. If the real PVR is not

Re: [PATCH 2/2] powerpc, ftrace: use create_branch lib function

2009-02-14 Thread Steven Rostedt
On Sun, 15 Feb 2009, Michael Ellerman wrote: /* if (link) set op to 'bl' else 'b' */ - op = 0x4800 | (link ? 1 : 0); - op |= (ftrace_calc_offset(ip, addr) 0x03fc); + op = create_branch((unsigned int *)ip, addr, link ? 1 : 0); If I was feeling nit-picky I'd say

4xx tree updates

2009-02-14 Thread Josh Boyer
Hi All, I've been rather busy lately and have unfortunately gotten behind on updating the 4xx tree. I spent some time this weekend looking over the patches queued up, and fortunately there were not too many. I'm doing some build testing of these 4 today: commit

Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as possible

2009-02-14 Thread Sam Ravnborg
On Wed, Feb 04, 2009 at 10:26:12PM +0100, Ingo Molnar wrote: * Anton Vorontsov avoront...@ru.mvista.com wrote: This patch gives arches more freedom on overwriting CFLAGS, specifically on PowerPC we want to remove -fno-omit-frame-pointer flag. Signed-off-by: Anton Vorontsov

Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as possible

2009-02-14 Thread Sam Ravnborg
On Wed, Feb 11, 2009 at 02:51:34PM +1100, Benjamin Herrenschmidt wrote: On Wed, 2009-02-04 at 22:26 +0100, Ingo Molnar wrote: +include $(srctree)/arch/$(SRCARCH)/Makefile + # arch Makefile may override CC so keep this after arch Makefile is included NOSTDINC_FLAGS += -nostdinc

Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as possible

2009-02-14 Thread Ingo Molnar
* Sam Ravnborg s...@ravnborg.org wrote: On Wed, Feb 04, 2009 at 10:26:12PM +0100, Ingo Molnar wrote: * Anton Vorontsov avoront...@ru.mvista.com wrote: This patch gives arches more freedom on overwriting CFLAGS, specifically on PowerPC we want to remove -fno-omit-frame-pointer

Re: [PATCH 1/3] Makefile: Include arch Makefiles as late as possible

2009-02-14 Thread Benjamin Herrenschmidt
On Sat, 2009-02-14 at 23:03 +0100, Ingo Molnar wrote: So the question is: even with FRAME_POINTERS disabled on PPC, is __builtin_return_address(1)/(2) reliable, and is save_stack_trace() fast? (i.e. can it walk down the stack frame efficiently, or does it have to scan the full kernel

OpenPIC / CPM2 PIC and cascading interrupt priorities

2009-02-14 Thread Guillaume Knispel
Hi, I'm programming a board with an MPC8555E on which an external chip can raise low priority interrupts through the port C of the CPM2. Under nominal conditions it generates few interrupts, but they take a relatively long time to be processed. I also use some CPM2 controllers in such a way that