Random improvements for sb1250: Silence compiler warnings, a bugfix for
the profiling code, and a comment typo.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix compilation for bcm1480, a hpt is only available on sb1250/bcm112x.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Historically plat_mem_setup did the entire platform initialization. This
was rather impractical because it meant plat_mem_setup had to get away
without any kind of memory allocator. To keep old code from breaking
plat_setup was just renamed to plat_setup and a second platform
initialization hook for anything else was introduced.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Remove unnecessary items from vr41xx/Kconfig. SYS_HA_CPU_VR41XX has
already been selected by MACH_VR41XX.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
IP27 configuration isn't the only NUMA system - it just happens to be
the currently only supported MIPS NUMA system. So move the necessary
options back into the main MIPS Kconfig file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Mark au1xxx_timer_setup() __init, just because it is. Get rid of
unneeded extern's (note that (*do_gettimeoffset)() is already declared by
<asm/time.c>) and an unused variable. Kill some whitespace...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The struct mips_fpu_soft_struct and mips_fpu_hard_struct are
completely same now and the kernel fpu emulator assumes that. This
patch unifies them to mips_fpu_struct and get rid of mips_fpu_union.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Support for the GT-64120-based Wind River 4KC PPMC Evaluation board.
Signed-off-by: Rongkai.Zhan <Rongkai.zhan@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Convert sizeof/sizeof use to use of ARRAY_SIZE macro, and annotate
irqmap structures as __initdata.
Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Running a UP kernel on a bcm1480 board, I get nonsensical timing
results, like this:
release@unknown:~/tmp$ time ./a.out
real 0m22.906s
user 0m45.792s
sys 0m0.010s
According to my watch, this program took 23 seconds to run, so the real
time clock is OK. It is process accounting that is broken.
I tracked this down to a problem with the function
bcm1480_timer_interrupt in the file sibyte/bcm1480/time.c. This
function calls ll_timer_interrupt for cpu0, and ll_local_timer_interrupt
for all cpus. However, both of these functions do process accounting.
Thus processes running on cpu0 end up with doubled times. This is very
obvious in a UP kernel where all processes run on cpu0.
The correct way to do this is to only call ll_local_timer interrupt if
this is not cpu0. This can be seen in the mips-board/generic/time.c
file, and also in the sibyte/sb1250/time.c file, both of which handle
this correctly. I fixed the bcm1480/time.c file by copying over the
correct code from the sb1250/time.c file.
With this fix, I now get sensible results.
release@unknown:~/tmp$ time ./a.out
real 0m22.903s
user 0m22.894s
sys 0m0.006s
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
It took a while longer than on other architectures but gcc has finally
started to strike us as well ...
This also fixes the damage by 6edfba1b33.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The SOC-it system controller running in big endian mode might forget
byteswapping when DMAing to the last word of physical memory. Fixed by
ignoring the last page of memory.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Move memory_present() in arch/mips/kernel/setup.c. When using sparsemem
extreme, this function does an allocate for bootmem. This would always
fail since init_bootmem hasn't been called yet.
Move memory_present after free_bootmem. This only marks actual memory
ranges as present instead of the entire address space.
Signed-off-by: Chad Reese <creese@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix following warnings:
linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 2)
linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 4)
linux/arch/mips/kernel/syscall.c:279: warning: unused variable `len'
linux/arch/mips/kernel/syscall.c:280: warning: unused variable `name'
linux/arch/mips/math-emu/dp_fint.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/dp_flong.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/sp_fint.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/sp_flong.c:32: warning: unused variable `xc'
(original patch by Atsushi, slight changes to the setup.c part by me.)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix following warnings:
linux/arch/mips/kernel/setup.c:249:12: warning: constant 0xffffffff00000000 is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:209:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:227:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:283:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:299:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The wrong revision number in the check was forcing a fallback to FPU
emulation for all SB1 cores in 2.6.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
open() always sets the O_LARGEFILE flag for the o32 ABI implementation
of a 64bit kernel. The appended patch fixes it.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Alchemy boards use YAMON which passes the environment variables as the
tuples of strings (the name followed by the value) unlike PMON which
passes "name=<val>" strings.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Save the Config.OD bit from being clobbered by coherency_setup(). This
bit, when set, fixes various errata in the early steppings of Au1x00
SOCs. Unfortunately, the bit was write-only on the most early of them.
In addition, also restore the bit after a wakeup from sleep.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The modpost uses a whitelist for commonly used suffix on checking the
section mismatch. Adding "_ops" suffix to op_modex_xxx get rid of
this modpost warning.
WARNING: arch/mips/oprofile/oprofile.o - Section mismatch: reference to .init.text: from .data after 'op_model_mipsxx' (at offset 0x528)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Replacing mistyped "buad" with "baud" where applicable.
Signed-off-by: Horst Schirmeier <horst@schirmeier.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
A proper fix would involve introducing the notion of shared caches but
at this stage of 2.6.17 that's going to be too intrusive and not needed
for current hardware; aside I think some discussion will be needed.
So for now on the affected SMP configurations which happen to suffer from
cache aliases we make use of the fact that a single cache will be shared
by all processors. This solves the deadlock issue and will improve
performance by getting rid of the smp_call_function overhead.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The "system type" Kconfig options on MIPS are not consistent. For
some platforms, only the name is listed while other entries are
prepended with "Support for". Remove this as it doesn't make sense
when describing the "system type".
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
When debugging a kernel compiled by gcc 4.1 with gdb 6.4, gdb could
not show filename, linenumber, etc. It seems fixed if I used generic
DWARF_DEBUG macro. Although gcc 3.x seems work without this change,
it would be better to use the generic macro unless there were
something MIPS specific.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Thiemo Seufer
Ralf Baechle
Yoichi Yuasa
Rodolfo Giometti
Sergei Shtylyov
Atsushi Nemoto
Mark.Zhan
Herbert Valerio Riedel
[MIPS] James E Wilson
Elizabeth Oldham
Linus Torvalds
Chad Reese
Horst Schirmeier
Kumba
Martin Michlmayr