linux-stable.git/arch/arm/kernel/setup.c, branch v2.6.38

ARM: 6676/1: Correct the cpu_architecture() function for ARMv7

2011-02-19T11:24:28+00:00

If ID_MMFR0[3:0] >= 3, the architecture version is ARMv7. The code was
currently only testing for ID_MMFR0[3:0] == 3.

Signed-off-by: Catalin Marinas 
Signed-off-by: Russell King

ARM: 6625/1: use memblock memory regions for "System RAM" I/O resources

2011-01-14T22:14:04+00:00

Do not use memory bank info to request the "system ram" resources as
they do not track holes created by memblock_remove inside
machine's reserve callback. If the removed memory is passed as
platform_device's ioresource, then drivers that call
request_mem_region would fail due to a conflict with the incorrectly
configured system ram resource.

Instead, iterate through the regions of memblock.memory and add
those as "System RAM" resources.

Signed-off-by: Dima Zavin 
Signed-off-by: Russell King

ARM: 6620/1: Change misleading warning when CONFIG_CMDLINE_FORCE is used

2011-01-12T14:22:25+00:00

When CONFIG_CMDLINE_FORCE is used, the warning

  Ignoring unrecognised tag 0x54410009

was displayed. Change this to

  Ignoring tag cmdline (using the default kernel command line)

Signed-off-by: Alexander Holler 
Signed-off-by: Russell King

ARM: provide an early platform initialization hook

2010-12-24T09:49:52+00:00

This allows platforms to hook into the initialization early to setup
things like scheduler clocks, etc.

Signed-off-by: Russell King

ARM: simplify early machine init hooks

2010-12-24T09:49:51+00:00

Rather than storing each machine init hook separately, store a
pointer to the machine description record and dereference this
instead.  This pointer is only available while the init sections
are present, which is not a problem as we only use it from init
code.

Signed-off-by: Russell King

ARM: 6532/1: Allow machine to specify it's own IRQ handlers at run-time

2010-12-24T09:47:34+00:00

Normally different ARM platform has different way to decode the IRQ
hardware status and demultiplex to the corresponding IRQ handler.
This is highly optimized by macro irq_handler in entry-armv.S, and
each machine defines their own macro to decode the IRQ number.
However, this prevents multiple machine classes to be built into a
single kernel.

By allowing each machine to specify thier own handler, and making
function pointer 'handle_arch_irq' to point to it at run time, this
can be solved. And introduce CONFIG_MULTI_IRQ_HANDLER to allow both
solutions to work.

Comparing with the highly optimized macro of irq_handler, the new
function must be written with care not to lose too much performance.
And the IPI stuff on SMP is expected to move to the provided arch
IRQ handler as well.

The assembly code to invoke handle_arch_irq is optimized by Russell
King.

Signed-off-by: Eric Miao 
Acked-by: Nicolas Pitre 
Signed-off-by: Russell King

ARM: move high-usage mostly read variables in setup.c to __read_mostly

2010-12-05T08:39:37+00:00

Signed-off-by: Russell King

Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux' and 'unwind' into devel

2010-10-18T21:34:25+00:00

ARM: vmlinux.lds: Refer to start of .data using _sdata rather than _data

2010-10-08T09:02:24+00:00

Use _sdata as the start of the data section, rather than _data.

Signed-off-by: Russell King

ARM: 6431/1: fix isb regression on CPU < v7

2010-10-08T08:59:36+00:00

The kernel does not compile for my ARM926EJ-S system U300 due to
the isb instruction inserted in generic assember statement from
commit 8925ec4c530094b878e7e28a1fd78e7122afd973, "ARM: 6385/1:
setup: detect aliasing I-cache when D-cache is non-aliasing"
hey the isb is only available when assembling for v7 so let's
use the generic isb() macro from setup.h instead.

Acked-by: Will Deacon 
Signed-off-by: Linus Walleij 
Signed-off-by: Russell King