a. On decrementer interrupt, instead of setting
dec to maximum and returning, we do the following
i. Call a function handle_nmi_dec, which in
turn calls handle_soft_nmi
ii. handle_soft_nmi sets the decrementer value
to 1 second and checks if more than 30
seconds have passed
This patch removes the disabling of interrupts
in soft-disable mode, when interrupts are received
(in lazy mode). The new scheme keeps the interrupts
enabled when we receive an interrupt and does the
following:
When an external interrupt is received, we
store the interrupt in local_paca via
We merge IPI and DEFAULT priorities to the same
value. The idea is to keep interrupts enabled
even in lazy soft-disabled mode. Instead of storing
the IPI and irq separately, we keep the levels
same so that we deal with only one of them
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mac
This patch is based on suggestions from paulus and benh.
The bugs are all mine. The idea was to implement soft
NMI(s) by keeping interrupts enabled in the soft-disabled
state, but to use the interrupt controller to gate posting
of new interrupts to the processor. This is still work in
progress and
Hi all,
In arch/powerpc/sysdev/mpic.c , it looks like IRQ_TYPE_EDGE_BOTH is
handled the same way as IRQ_TYPE_EDGE_FALLING:
static unsigned int mpic_type_to_vecpri(struct mpic *mpic, unsigned int type)
{
/* Now convert sense value */
switch(type & IRQ_TYPE_SENSE_MASK) {
cas
On Mon, 2 Jan 2017, Geert Uytterhoeven wrote:
> Hi Finn, Ben,
>
> On Sun, Jan 1, 2017 at 1:56 AM, Finn Thain
> wrote:
> > Change the device probe test in the via-cuda.c driver so it will load
> > on Egret-based machines too. Remove the now redundant via-maciisi.c
> > driver.
> >
> > Tested-b
As we are reusing crashkernel parameter instead of fadump_reserve_mem
parameter to specify the memory to reserve for fadump's crash kernel,
update the documentation accordingly.
Signed-off-by: Hari Bathini
---
Documentation/powerpc/firmware-assisted-dump.txt | 23 ++
1 file
fadump supports specifying memory to reserve for fadump's crash kernel
with fadump_reserve_mem kernel parameter. This parameter currently
supports passing a fixed memory size, like fadump_reserve_mem=
only. This patch aims to add support for other syntaxes like range-based
memory size :[,:,:,...]
w
Now that crashkernel parameter parsing and vmcoreinfo related code is
moved under CONFIG_CRASH_CORE instead of CONFIG_KEXEC_CORE, remove
dependency with CONFIG_KEXEC for CONFIG_FA_DUMP. While here, get rid
of definitions of fadump_append_elf_note() & fadump_final_note()
functions to reuse similar f
Get rid of multiple definitions of append_elf_note() & final_note()
functions. Reuse these functions compiled under CONFIG_CRASH_CORE
Also, define Elf_Word and use it instead of generic u32 or the more
specific Elf64_Word.
Signed-off-by: Hari Bathini
---
Changes from v2:
* Added a definition for
Traditionally, kdump is used to save vmcore in case of a crash. Some
architectures like powerpc can save vmcore using architecture specific
support instead of kexec/kdump mechanism. Such architecture specific
support also needs to reserve memory, to be used by dump capture kernel.
crashkernel param
Traditionally, kdump is used to save vmcore in case of a crash. Some
architectures like powerpc can save vmcore using architecture specific
support instead of kexec/kdump mechanism. Such architecture specific
support also needs to reserve memory, to be used by dump capture kernel.
crashkernel param
Hi Finn, Ben,
On Sun, Jan 1, 2017 at 1:56 AM, Finn Thain wrote:
> Change the device probe test in the via-cuda.c driver so it will load on
> Egret-based machines too. Remove the now redundant via-maciisi.c driver.
>
> Tested-by: Stan Johnson
> Signed-off-by: Finn Thain
Acked-by: Geert Uytterho
On Fri, Dec 30, 2016 at 06:56:31PM +0300, Dmitry Safonov wrote:
> All users of TASK_SIZE_OF(tsk) have migrated to mm->task_size or
> TASK_SIZE_MAX since:
> commit d696ca016d57 ("x86/fsgsbase/64: Use TASK_SIZE_MAX for
> FSBASE/GSBASE upper limits"),
> commit a06db751c321 ("pagemap: check permissions
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