Re: UBIFS problem on MPC8536DS

Hi, Scott Scott Wood wrote: On Fri, Oct 16, 2009 at 07:01:43AM +0200, Felix Radensky wrote: Thanks for confirmation. So the real problem is eLBC ? What happens if I access other devices on eLBC (e.g. FPGA) simultaneously with NAND or NOR ? AFAICT, the problem is NAND being accessed

Re: [PATCH] powerpc: tracing: Add powerpc tracepoints for interrupt entry and exit

Hi Ben, Breaks 6xx_defconfig: Yuck. Since the CREATE_TRACE_POINTS stuff appears to need a non trivial number of includes it might be best just to fold it into one of the tracepoint call sites like this. -- This patch adds powerpc specific tracepoints for interrupt entry and exit. While we

[PATCH 3/3] powerpc perf_event: Add alignment-faults and emulation-faults software events

Hook up the alignment-faults and emulation-faults events for powerpc. Signed-off-by: Anton Blanchard an...@samba.org --- Index: linux.trees.git/arch/powerpc/include/asm/emulated_ops.h === ---

[PATCH 2/3] powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED

perf_event wants a separate event for alignment and emulation faults, so create another PPC_WARN_* define. This will make it easy to hook in perf_event at one spot. We pass in regs which will be required for these events. Signed-off-by: Anton Blanchard an...@samba.org --- Index:

[PATCH 1/3] perf_event: Add alignment-faults and emulation-faults software events

Add two more sw events that are common to many cpus. Alignment faults: When a load or store is not aligned properly. Emulation faults: When an instruction is emulated in software. Both cause a very significant slowdown (100x or worse), so identifying and fixing them is very important.

[PATCH 3/3] powerpc: perf_event: Hide iseries_check_pending_irqs

If CONFIG_PPC_ISERIES isn't defined we end up with iseries_check_pending_irqs and do_work at the same address. perf ends up picking iseries_check_pending_irqs which creates confusing backtraces. Hide it. Signed-off-by: Anton Blanchard an...@samba.org -- Index:

[PATCH 1/3] powerpc: perf_event: Cleanup copy_page output by hiding setup symbol

A lot of hits in setup doesn't make much sense, so hide this symbol and allow all the hits to end up in copy_4k_page. Signed-off-by: Anton Blanchard an...@samba.org --- Index: linux.trees.git/arch/powerpc/lib/copypage_64.S === ---

[PATCH 2/3] powerpc: perf_event: Cleanup output by adding symbols

Add some dummy symbols for the branches at 0xf00, 0xf20 and 0xf40, otherwise hits end up in trap_0e which is confusing to the user. Signed-off-by: Anton Blanchard an...@samba.org --- Index: linux.trees.git/arch/powerpc/kernel/exceptions-64s.S

Re: Mixing hard and soft floating point?

Wolfgang Denk w...@denx.de wrote on 17/10/2009 21:34:54: Dear Joakim Tjernlund, In message OFEC00B9FB.B03AA854-ONC1257652.00644350-C1257652. 00651...@transmode.se you wrote: Recompile and relink it with soft-fp as well. Or ask the provider to do that. That is what I am trying

Re: [PATCH 2/3] powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED

Hi Anton, On Sun, 18 Oct 2009 22:11:26 +1100 Anton Blanchard an...@samba.org wrote: @@ -66,8 +66,12 @@ extern void ppc_warn_emulated_print(cons #else /* !CONFIG_PPC_EMULATED_STATS */ -#define PPC_WARN_EMULATED(type) do { } while (0) +#define __PPC_WARN_EMULATED(type)do { }

Re: Mixing hard and soft floating point?

Dear Joakim Tjernlund, In message ofefbde7c9.da9d5b8b-onc1257653.003e3dc6-c1257653.003f0...@transmode.se you wrote: If the application is really using FP instructions a lot, then there is a huge difference between using soft-float and MATH_EMU; I remember test cases where soft-float was

Re: [PATCH 3/3] powerpc perf_event: Add alignment-faults and emulation-faults software events

On Sun, 2009-10-18 at 22:13 +1100, Anton Blanchard wrote: Hook up the alignment-faults and emulation-faults events for powerpc. Signed-off-by: Anton Blanchard an...@samba.org --- Index: linux.trees.git/arch/powerpc/include/asm/emulated_ops.h

Re: [PATCH] powerpc: Fix compile errors found by new ppc64e_defconfig

On Fri, 2009-10-16 at 12:05 -0500, Kumar Gala wrote: Fix the following 3 issues: arch/powerpc/kernel/process.c: In function 'arch_randomize_brk': arch/powerpc/kernel/process.c:1183: error: 'mmu_highuser_ssize' undeclared (first use in this function) arch/powerpc/kernel/process.c:1183:

Re: [PATCH 3/3] powerpc perf_event: Add alignment-faults and emulation-faults software events

Hi, +#define PPC_WARN_ALIGNMENT(type, regs) \ + do {\ + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, \ + 1, 0, regs, regs-dar); \ +

Re: Mixing hard and soft floating point?

On Sat, 2009-10-17 at 21:34 +0200, Wolfgang Denk wrote: Dear Joakim Tjernlund, OK, but then you don't mix some libs/apps with soft and other apps/libs with hard FP? No, we never tried that. Sounds scary to me. And dangerous. Hard-float and soft-float are ABI incompatible, so you cannot

Re: [PATCH] powerpc: Fix compile errors found by new ppc64e_defconfig

On Mon, 2009-10-19 at 10:58 +1100, Michael Ellerman wrote: if (bus-self) { +#ifdef CONFIG_PPC_STD_MMU_64 struct resource *res = bus-resource[0]; +#endif pr_debug(IO unmapping for PCI-PCI bridge %s\n, pci_name(bus-self)); 104 105