linux-toradex.git/arch/mips/netlogic, branch v4.3.1

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu

dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}

2015-09-10T20:29:01+00:00

Since 2009 we have a nice asm-generic header implementing lots of DMA API
functions for architectures using struct dma_map_ops, but unfortunately
it's still missing a lot of APIs that all architectures still have to
duplicate.

This series consolidates the remaining functions, although we still need
arch opt outs for two of them as a few architectures have very
non-standard implementations.

This patch (of 5):

The coherent DMA allocator works the same over all architectures supporting
dma_map operations.

This patch consolidates them and converges the minor differences:

 - the debug_dma helpers are now called from all architectures, including
   those that were previously missing them
 - dma_alloc_from_coherent and dma_release_from_coherent are now always
   called from the generic alloc/free routines instead of the ops
   dma-mapping-common.h always includes dma-coherent.h to get the defintions
   for them, or the stubs if the architecture doesn't support this feature
 - checks for ->alloc / ->free presence are removed.  There is only one
   magic instead of dma_map_ops without them (mic_dma_ops) and that one
   is x86 only anyway.

Besides that only x86 needs special treatment to replace a default devices
if none is passed and tweak the gfp_flags.  An optional arch hook is provided
for that.

[linux@roeck-us.net: fix build]
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig 
Cc: Arnd Bergmann 
Cc: Russell King 
Cc: Catalin Marinas 
Cc: Will Deacon 
Cc: Yoshinori Sato 
Cc: Michal Simek 
Cc: Jonas Bonn 
Cc: Chris Metcalf 
Cc: Guan Xuetao 
Cc: Ralf Baechle 
Cc: Benjamin Herrenschmidt 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: "H. Peter Anvin" 
Cc: Andy Shevchenko 
Signed-off-by: Guenter Roeck 
Signed-off-by: Max Filippov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

MIPS: Netlogic: Fix 0x0x prefixes.

2015-09-03T10:08:05+00:00

Fix the 0x0x prefix in integer constants, in this case the registers
interval is actually 0x8065 .. 0x80A4 as confirmed some lines above in
the code.

Signed-off-by: Antonio Ospite 
Cc: linux-mips@linux-mips.org
Cc: Jiri Kosina 
Patchwork: https://patchwork.linux-mips.org/patch/9908/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: NAND IRQ mapping

2015-09-03T10:08:04+00:00

Add NAND IRQ mapping for XLP9xx processor.

Signed-off-by: Subhendu Sekhar Behera 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10820/
Signed-off-by: Ralf Baechle

MIPS: Netlogic: Use chip_data for irq_chip methods

2015-09-03T10:08:03+00:00

Update mips/netlogic/common/irq.c and mips/pci/msi-xlp.c to use chip_data
to store interrupt controller data pointer. It uses handler_data now,
and that causes errors when an API (like the GPIO subsystem) tries to
use the handler data.

Signed-off-by: Kamlakant Patel 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10817/
Signed-off-by: Ralf Baechle

MIPS: netlogic: Prepare ipi handlers for irq argument removal

2015-08-26T13:23:33+00:00

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu 
Cc: linux-mips@linux-mips.org
Cc: LKML 
Patchwork: https://patchwork.linux-mips.org/patch/10705/
Signed-off-by: Ralf Baechle

MIPS: SMP: Don't increment irq_count multiple times for call function IPIs

2015-08-03T07:25:12+00:00

The majority of SMP platforms handle their IPIs through do_IRQ()
which calls irq_{enter/exit}(). When a call function IPI is received,
smp_call_function_interrupt() is called which also calls
irq_{enter,exit}(), meaning irq_count is raised twice.

When tick broadcasting is used (which is implemented via a call
function IPI), this incorrectly causes all CPU idle time on the core
receiving broadcast ticks to be accounted as time spent servicing
IRQs, as account_process_tick() will account as such if irq_count is
greater than 1. This results in 100% CPU usage being reported on a
core which receives its ticks via broadcast.

This patch removes the SMP smp_call_function_interrupt() wrapper which
calls irq_{enter,exit}(). Platforms which handle their IPIs through
do_IRQ() now call generic_smp_call_function_interrupt() directly to
avoid incrementing irq_count a second time. Platforms which don't
(loongson, sgi-ip27, sibyte) call generic_smp_call_function_interrupt()
wrapped in irq_{enter,exit}().

Signed-off-by: Alex Smith 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10770/
Signed-off-by: Ralf Baechle

MIPS: netlogic: remove unnecessary MTD partition probe specification

2015-06-21T19:52:43+00:00

The cmdlinepart parser is already supported in the default probe.

Signed-off-by: Brian Norris 
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10071/
Signed-off-by: Ralf Baechle

Merge branch '4.0-fixes' into mips-for-linux-next

2015-04-13T14:03:32+00:00

MIPS: Netlogic: Fix for SATA PHY init

2015-04-10T13:41:43+00:00

Update to the SATA PHY initialization. This is needed for SATA detection
to succeed in all configurations.

Signed-off-by: Ganesan Ramalingam 
Signed-off-by: Jayachandran C 
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8886/
Signed-off-by: Ralf Baechle