linux.git/arch/mips/kernel/setup.c, branch v2.6.35-rc4

MIPS: nofpu and nodsp only affect CPU0

2010-05-21T20:31:17+00:00

The "nofpu" and "nodsp" kernel command line options currently do not
affect CPUs that are brought online later in the boot process or
hotplugged at runtime.  It is desirable to apply the nofpu/nodsp options
to all CPUs in the system, so that surprising results are not seen when
a process migrates from one CPU to another.

[Ralf: Moved definitions of mips_fpu_disabled, fpu_disable,
mips_dsp_disabled and dsp_disable from setup.c to cpu-probe.c to allow
making mips_fpu_disabled and mips_dsp_disabled static.]

Signed-off-by: Kevin Cernekee 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1169/
Signed-off-by: Ralf Baechle

MIPS: Fix and enhance built-in kernel command line

2009-12-17T01:57:35+00:00

Currently, MIPS kernels silently overwrite kernel command-line parameters
hardcoded in CONFIG_CMDLINE by the ones received from firmware.  Therefore,
using firmware remains the only reliable method to transfer the
command-line parameters, which is not always desirable or convenient, and
the CONFIG_CMDLINE option is thereby effectively rendered useless.

This patch fixes the problem described above and introduces a more flexible
scheme of handling the kernel command line, in a manner identical to what is
currently used for x86.  The default behavior, i.e. when CONFIG_CMDLINE_BOOL
is not defined, retains the existing semantics, and firmware command-line
arguments override the hardcoded ones.

[Ralf: I fixed up all the defconfig files so the stay unaffected by this
change.]

Signed-off-by: Dmitri Vorobiev 
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/689/
Signed-off-by: Ralf Baechle

MIPS: Remove addinitrd and CONFIG_PROBE_INITRD_HEADER

2009-12-17T01:57:07+00:00

Addinitrd has been superseded by initramfs ages ago.

Signed-off-by: Ralf Baechle

MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE

2009-12-17T01:56:56+00:00

The MIPS-specific macro CL_SIZE is merely aliasing the macro
COMMAND_LINE_SIZE. Other architectures use the latter; also,
COMMAND_LINE_SIZE is documented in kernel-parameters.txt, so
let's use it, and remove the alias.

Signed-off-by: Dmitri Vorobiev 
Signed-off-by: Ralf Baechle

MIPS: Remove useless zero initializations.

2009-09-17T18:07:51+00:00

Signed-off-by: Ralf Baechle

MIPS: Stop using .

2009-03-30T12:49:41+00:00

This fixes a few warnings - and triggers a few new ones which the rest of
this patch fixes.

Signed-off-by: Ralf Baechle

MIPS: Fix debugfs_create_*'s error checking method for mips/kernel/

2008-10-27T16:18:25+00:00

debugfs_create_*() returns NULL on error.  Make its callers return -ENODEV
on error.

Signed-off-by: Zhao Lei 
Acked-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Probe initrd header only if explicitly specified

2008-09-05T20:24:12+00:00

Currently init_initrd() probes initrd header at the last page of kernel
image, but it is valid only if addinitrd was used.  If addinitrd was not
used, the area contains garbage so probing there might misdetect initrd
header (magic number is not strictly robust).

This patch introduces CONFIG_PROBE_INITRD_HEADER to explicitly enable this
probing.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle

[MIPS] Convert printk statements during kernel setup to use severity levels

2008-08-26T08:10:19+00:00

Signed-off-by: Mike Crowe 
Signed-off-by: Ralf Baechle

[MIPS] fix sparse warning about setup_early_printk()

2008-07-15T17:44:29+00:00

This patch fixes the following sparse warning:

<<<<<<<<

arch/mips/kernel/early_printk.c:35:13: warning: symbol 'setup_early_printk'
was not declared. Should it be static?

<<<<<<<<

The fix is to define a prototype of the setup_early_printk() function and
to include the appropriate header into arch/mips/kernel/early_printk.c.

[Ralf: Sorted includes again]

Signed-off-by: Dmitri Vorobiev 
Signed-off-by: Ralf Baechle