On Friday 14 November 2008, Deepak Pandian wrote:
> I am trying to implement a platform driver for msi. Whenever I write
> in to the PCIE-IH space, the kernel stops abruptly and the system is
> reset.
I have a PPC4xx MSI driver in my queue which still needs some polishing.
Hopefully I'll find th
On Nov 16, 2008, at 2:26 PM, Benjamin Herrenschmidt wrote:
On Sun, 2008-11-16 at 15:43 -0600, Milton Miller wrote:
Instead of copying current_set[cpu] to secondary_ti, directly index
into
current_set by the cpu number like head_64.S. In addition to removing
the variable, a slow to respond cp
On Fri, Nov 07, 2008 at 04:28:29PM +1100, Paul Mackerras wrote:
> Sonny Rao writes:
>
> > Fix the BSR driver to allow small BSR devices, which are limited to a
> > single 4k space, on a 64k page kernel. Previously the driver would
> > reject the mmap since the size was smaller than PAGESIZE (or b
Steven Rostedt writes:
> +static int test_24bit_addr(unsigned long ip, unsigned long addr)
> +{
> + unsigned long diff;
> +
> + /* can we get to addr from ip in 24 bits? */
> + diff = ip > addr ? ip - addr : addr - ip;
> +
> + return !(diff & ((unsigned long)-1 << 24));
Since a br
Steven Rostedt writes:
> Impact: use cleaner probe_kernel API over assembly
>
> Using probe_kernel_read/write interface is a much cleaner approach
> than the current assembly version.
Possibly naive question: how is it possible for the accesses to the
instructions to fault, given that we are cal
Steven Rostedt writes:
> + if (!rec->arch.mod) {
> + if (!mod) {
> + printk(KERN_ERR "No module loaded addr=%lx\n",
> +addr);
> + return -EFAULT;
> + }
> + rec->arch.mod = mod;
> + } els
Steven Rostedt writes:
> When idle is called, interrupts are disabled, but the idle function
> will still wake up on an interrupt. The problem is that the interrupt
> disabled latency tracer will take this call to idle as a latency.
>
> This patch disables the latency tracing when going into idle
Steven Rostedt writes:
> The following patches are for my work on porting the new dynamic ftrace
> framework to PowerPC. The issue I had with both PPC64 and PPC32 is
> that the calls to mcount are 24 bit jumps. Since the modules are
> loaded in vmalloc address space, the call to mcount is farther
Impact: Implement PPC64 module trampolines for dyn ftrace
This adds code to handle the PPC64 module trampolines, and allows for
PPC64 to use dynamic ftrace.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/include/asm/ftrace.h |3 +-
arch/powerpc/include/asm/module.h | 11
Impact: enable modules for dynamic ftrace on PPC32
This patch performs the necessary trampoline calls to handle
modules with dynamic ftrace.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/include/asm/ftrace.h |1 -
arch/powerpc/include/asm/module.h |5 +-
arch/powerpc
Impact: enable dynamic ftrace for PPC32
This patch adds the necessary hooks to get PPC32 dynamic ftrace working.
It does not handle modules. They are ignored by this patch.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/Kconfig|2 +-
scripts/recordmcount.pl |7 +++
Impact: use cleaner probe_kernel API over assembly
Using probe_kernel_read/write interface is a much cleaner approach
than the current assembly version.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/kernel/ftrace.c | 53 -
1 files ch
Impact: give better timing to latency tracers
When idle is called, interrupts are disabled, but the idle function
will still wake up on an interrupt. The problem is that the interrupt
disabled latency tracer will take this call to idle as a latency.
This patch disables the latency tracing when go
The following patches are for my work on porting the new dynamic ftrace
framework to PowerPC. The issue I had with both PPC64 and PPC32 is
that the calls to mcount are 24 bit jumps. Since the modules are
loaded in vmalloc address space, the call to mcount is farther than
what a 24 bit jump can ma
Impact: change PPC to use new ftrace arch API
This patch converts PPC to use the new dynamic ftrace arch API.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/include/asm/ftrace.h | 14 -
arch/powerpc/kernel/ftrace.c | 60 +---
2
Impact: enable PowerPC for dynamic ftrace
This patch converts PowerPC to use the mcount location section.
Currently, modules will be ignored by the converter.
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
---
arch/powerpc/Kconfig|2 ++
scripts/recordmcount.pl | 13 +++--
2
On Sun, 2008-11-16 at 15:43 -0600, Milton Miller wrote:
> Instead of copying current_set[cpu] to secondary_ti, directly index into
> current_set by the cpu number like head_64.S. In addition to removing
> the variable, a slow to respond cpu will not clobber another cpus
> stack.
Except that we do
attr_smt_snooze_delay is defined for CONFIG_PPC64, so protect the attribute
removal with the same condition.
/data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c: In function
‘unregister_cpu_online’:
/data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c:722: error:
‘attr_smt_snooze_delay’ u
Instead of copying current_set[cpu] to secondary_ti, directly index into
current_set by the cpu number like head_64.S. In addition to removing
the variable, a slow to respond cpu will not clobber another cpus
stack.
---
grep found no other reference in arch/powerpc. compile tested but I have
no
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