linux-toradex.git/arch/powerpc/platforms/ps3/interrupt.c, branch v3.9.2

irq_domain: Move irq_virq_count into NOMAP revmap

2012-04-12T06:37:48+00:00

This patch replaces the old global setting of irq_virq_count that is only
used by the NOMAP mapping and instead uses a revmap_data property so that
the maximum NOMAP allocation can be set per NOMAP irq_domain.

There is exactly one user of irq_virq_count in-tree right now: PS3.
Also, irq_virq_count is only useful for the NOMAP mapping.  So,
instead of having a single global irq_virq_count values, this change
drops it entirely and added a max_irq argument to irq_domain_add_nomap().
That makes it a property of an individual nomap irq domain instead of
a global system settting.

Signed-off-by: Grant Likely 
Tested-by: Benjamin Herrenschmidt 
Cc: Thomas Gleixner 
Cc: Milton Miller

irq_domain/powerpc: constify irq_domain_ops

2012-02-16T13:11:24+00:00

Make all the irq_domain_ops structures in powerpc 'static const'

Signed-off-by: Grant Likely 
Cc: Benjamin Herrenschmidt 
Cc: Thomas Gleixner 
Cc: Milton Miller 
Tested-by: Olof Johansson

irq_domain: Replace irq_alloc_host() with revmap-specific initializers

2012-02-16T13:11:22+00:00

Each revmap type has different arguments for setting up the revmap.
This patch splits up the generator functions so that each revmap type
can do its own setup and the user doesn't need to keep track of how
each revmap type handles the arguments.

This patch also adds a host_data argument to the generators.  There are
cases where the host_data pointer will be needed before the function returns.
ie. the legacy map calls the .map callback for each irq before returning.

v2: - Add void *host_data argument to irq_domain_add_*() functions
    - fixed failure to compile
    - Moved IRQ_DOMAIN_MAP_* defines into irqdomain.c

Signed-off-by: Grant Likely 
Cc: Rob Herring 
Cc: Benjamin Herrenschmidt 
Cc: Thomas Gleixner 
Cc: Milton Miller 
Tested-by: Olof Johansson

irq_domain/powerpc: Use common irq_domain structure instead of irq_host

2012-02-14T21:06:50+00:00

This patch drops the powerpc-specific irq_host structures and uses the common
irq_domain strucutres defined in linux/irqdomain.h.  It also fixes all
the users to use the new structure names.

Renaming irq_host to irq_domain has been discussed for a long time, and this
patch is a step in the process of generalizing the powerpc virq code to be
usable by all architecture.

An astute reader will notice that this patch actually removes the irq_host
structure instead of renaming it.  This is because the irq_domain structure
already exists in include/linux/irqdomain.h and has the needed data members.

Signed-off-by: Grant Likely 
Cc: Benjamin Herrenschmidt 
Cc: Thomas Gleixner 
Cc: Milton Miller 
Tested-by: Olof Johansson

powerpc/ps3: Interrupt code cleanup

2011-12-08T03:05:54+00:00

General code cleanup for PS3 interrupt.c:

 o Fill out comments for structure members.
 o Move variables ipi_debug_brk_mask and lock from struct ps3_bmp to
   struct ps3_private.
 o Fix pr_debug build errors when DEBUG is defined.
 o Convert bit operation to set_bit().
 o Convert DBG macro from pr_debug to pr_devel
 o Add new macro FAIL to replace pr_debug calls

Signed-off-by: Geoff Levand 
Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Fix lost SMP IPIs

2011-11-16T03:47:54+00:00

Fixes the PS3 bootup hang introduced in 3.0-rc1 by:

  commit 317f394160e9beb97d19a84c39b7e5eb3d7815a
  sched: Move the second half of ttwu() to the remote cpu

Move the PS3's LV1 EOI call lv1_end_of_interrupt_ext() from ps3_chip_eoi()
to ps3_get_irq() for IPI messages.

If lv1_send_event_locally() is called between a previous call to
lv1_send_event_locally() and the coresponding call to
lv1_end_of_interrupt_ext() the second event will not be delivered to the
target cpu.

The PS3's SMP IPIs are implemented using lv1_send_event_locally(), so if two
IPI messages of the same type are sent to the same target in a relatively
short period of time the second IPI event can become lost when
lv1_end_of_interrupt_ext() is called from ps3_chip_eoi().

CC: stable@kernel.org
Signed-off-by: Geoff Levand 
Signed-off-by: Benjamin Herrenschmidt

powerpc: various straight conversions from module.h --> export.h

2011-10-31T23:30:44+00:00

All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure.  We can shift them off to the
export.h header which is a way smaller footprint and thus
realize some compile time gains.

Signed-off-by: Paul Gortmaker

powerpc: Remove trival irq_host_ops.unmap

2011-05-19T05:31:39+00:00

These all just clear chip or chipdata fields, which will be done
by the generic code when we call irq_free_descs.

Signed-off-by: Milton Miller 
Signed-off-by: Benjamin Herrenschmidt

powerpc/ps3: Update debug message for irq_set_chip_data()

2011-04-27T04:18:39+00:00

commit ec775d0e70eb6b7116406b3441cb8501c2849dd2 ("powerpc: Convert to new irq_*
function names") changed a call from set_irq_chip_data() to
irq_set_chip_data(), but forgot to update the corresponding debug message

Signed-off-by: Geert Uytterhoeven 
Acked-by: Geoff Levand 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Convert to new irq_* function names

2011-03-29T12:48:12+00:00

Scripted with coccinelle.

Signed-off-by: Thomas Gleixner