linux-stable.git/arch/microblaze/kernel/intc.c, branch linux-3.4.y

Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

2012-03-28T01:20:56+00:00

Pull arch/microblaze fixes from Michal Simek

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Handle TLB skip size dynamically
  microblaze: Introduce TLB skip size
  microblaze: Improve TLB calculation for small systems
  microblaze: Extend space for compiled-in FDT to 32kB
  microblaze: Clear all MSR flags on the first kernel instruction
  microblaze: Use node name instead of compatible string
  microblaze: Fix mapin_ram function
  microblaze: Highmem support
  microblaze: Use active regions
  microblaze: Show more detailed information about memory
  microblaze: Introduce fixmap
  microblaze: mm: Fix lowmem max memory size limits
  microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL
  microblaze: trivial: Fix typo fault in timer.c
  microblaze: Use vsprintf extention %pf with builtin_return_address
  microblaze: Add PVR version string for MB 8.20.b and 8.30.a
  microblaze: Fix makefile to work with latest toolchain
  microblaze: Fix typo in early_printk.c

microblaze: Use node name instead of compatible string

2012-03-23T08:28:15+00:00

Change report in bootlog:
Origin:
xlnx,xps-intc-1.00.a #0 at 0xc8000000, num_irq=6, edge=0x4
xlnx,xps-timer-1.00.a #0 at 0xc8004000, irq=2

New:
interrupt-controller #0 at 0xc8000000, num_irq=6, edge=0x4
system-timer #0 at 0xc8004000, irq=2

Signed-off-by: Michal Simek

irq_domain/microblaze: Convert microblaze to use irq_domains

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

This patch converts Microblaze to use the irq_domain remapper and get
away from hard coding the offset between hwirq number and the linux irq
number space.  This also paves the way for multiple interrupt controllers.

v2: Don't enable SPARSE_IRQ and keep NR_IRQS set to 33

Signed-off-by: Grant Likely 
Signed-off-by: Michal Simek 
Cc: Rob Herring 
Cc: John Williams 
Cc: John Linn

microblaze: Change NO_IRQ to 0

2012-01-05T07:29:13+00:00

As has been discussed many times[1], Using NO_IRQ set to anything other
than 0 is bug waiting to happen since many drivers follow the pattern
"if (!irq)" for testing whether or not an irq has been set.

This patch changes the Microblaze NO_IRQ setting from -1 to 0 to bring
it in line with most of the rest of the kernel.  It also prepares for
Microblaze eventually supporting multiple interrupt controllers by
breaking the assumption that hwirq# == Linux IRQ#.  The Linux IRQ
number is just a cookie with no guarantee of a direct relationship
with the hardware irq arrangement.

At this point, Microblaze interrupt handling only supports only one
instance of one kind of interrupt controller (xilinx_intc).  This change
shouldn't affect any architecture code outside of the interrupt
controller driver and the irq_of mapping.

Updated to 3.2 and to use irq_data.hwirq by Rob Herring.
Tested and fixed by Michal Simek.

[1] http://lkml.org/lkml/2005/11/21/221

Signed-off-by: Grant Likely 
Signed-off-by: Rob Herring 
Signed-off-by: Michal Simek

microblaze: intc: Change variable name

2012-01-05T07:22:02+00:00

intr_type is mask - change name.
s/intr_type/intr_mask/g

Signed-off-by: Michal Simek

microblaze: Use of_find_compatible_node for timer and intc

2012-01-05T07:22:01+00:00

Calling of_find_compatible_node instead of calling private code
which does the same.

Signed-off-by: Michal Simek

microblaze: Do not show error message for 32 interrupt lines

2011-07-27T09:02:00+00:00

When interrupt controller uses 32 interrupts lines the kernel
show error message about mismatch in kind-of-intr parameter
because it exceeds u32. Recast fixs this issue.

Signed-off-by: Michal Simek

microblaze: Fix level/edge irq sensibility

2011-04-01T07:25:04+00:00

Patches:
"microblaze: Convert to new irq function names"
sha (4adc192ec7d977c74c750320f289af9d61c1caca)
and
"microblaze: Use generic show_interrupts()"
sha(9d61c18b25726306c9231428c17db42e3ff29ba7)

should also setup edge/level in irq_set_chip_and_handler_name
name parameter.

Error log:
~ # cat /proc/interrupts
           CPU0
  2:          2  Xilinx INTC-Xilinx INTC  eth0
  3:          2  Xilinx INTC-Xilinx INTC  eth0
  4:        241  Xilinx INTC-Xilinx INTC  timer
  6:        108  Xilinx INTC-Xilinx INTC  serial

Fixed:
~ # cat /proc/interrupts
           CPU0
  2:          2  Xilinx INTC-level     eth0
  3:          2  Xilinx INTC-level     eth0
  4:        238  Xilinx INTC-edge      timer
  6:        108  Xilinx INTC-level     serial

Signed-off-by: Michal Simek 
Acked-by: Thomas Gleixner 

---

v2: Fix exchanged edge and level

microblaze: Convert to new irq function names

2011-03-29T12:48:06+00:00

Namespace conversion scripted with coccinelle.

Also retrieve the irq type from irq_data in intc_enable_or_unmask()

Signed-off-by: Thomas Gleixner

microblaze: Convert irq_chip to new functions

2011-03-09T07:09:59+00:00

Use proper irq_desc wrappers while at it.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Michal Simek