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2006-03-18[MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.Ralf Baechle1-1/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Sibyte: Fix race in sb1250_gettimeoffset().Ralf Baechle2-17/+63
From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining value, however once this counter reaches 0 and the interrupt is raised, it immediately resets and begins to count down again. If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after the timer has reset but prior to cpu 0 processing the interrupt and taking write_seqlock() in timer_interrupt() it will return a full value (or close to it) causing time to jump backwards 1ms. Once cpu 0 handles the interrupt and timer_interrupt() gets far enough along it will jump forward 1ms. Fix this problem by implementing mips_hpt_*() on sb1250 using a spare timer unrelated to the existing periodic interrupt timers. It runs at 1Mhz with a full 23bit counter. This eliminated the custom do_gettimeoffset() for sb1250 and allowed use of the generic fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Sibyte: Fix interrupt timer off by one bug.Ralf Baechle1-2/+2
From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: The timers need to be loaded with 1 less than the desired interval not the interval itself. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Protect more of timer_interrupt() by xtime_lock.Ralf Baechle1-2/+4
From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: * do_timer() expects the arch-specific handler to take the lock as it modifies jiffies[_64] and xtime. * writing timerhi/lo in timer_interrupt() will mess up fixed_rate_gettimeoffset() which reads timerhi/lo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Simple patch to power off DBAU1200Matej Kupljen1-0/+3
Signed-off-by: Matej Kupljen <matej.kupljen@ultra.si> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Fix DBAu1550 software power off.Sergei Shtylylov1-3/+4
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] local_r4k_flush_cache_page fixAtsushi Nemoto2-5/+9
If dcache_size != icache_size or dcache_size != scache_size, or set-associative cache, icache/scache does not flushed properly. Make blast_?cache_page_indexed() masks its index value correctly. Also, use physical address for physically indexed pcache/scache. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18[MIPS] Get rid of the IP22-specific code in arclib.Ralf Baechle1-19/+0
This breaks the kernel build if sgiwd93 was configured as a module. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Always pass -msoft-float.Ralf Baechle1-0/+1
Some people still haven't heared that fp in the kernel is forbidden. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Scatter a bunch of __init over tlbex.c.Ralf Baechle1-17/+17
Found by make buildcheck. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Momentum: Resurrect after things were moved around a while ago.Ralf Baechle7-23/+29
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Discard .exit.text at runtime.Ralf Baechle1-1/+3
At times gcc will place bits of __exit functions into .rodata. If compiled into the kernle itself we used to discard .exit.text - but not the bits left in .rodata. While harmless this did at times result in a large number of warnings. So until gcc fixes this, discard .exit.text at runtime. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] Enable highmem for all MIPS32 and MIPS64 processors.Ralf Baechle1-0/+4
In case a particular system doesn't support highmem the runtime checks will ensure nothing bad is going to happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09[MIPS] A struct console.setup function may not be __init.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-01[MIPS] Use USECS_PER_SEC / HZ instead of tick_usec in do_gettimeofday.Atsushi Nemoto1-2/+3
The 'tick_usec' is USER_HZ period in usec. do_gettimeofday() should use kernel HZ value. Here is a patch for MIPS. It seems m32r, m68k and sparc have same problem though their HZ and USER_HZ are same for now. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-28[MIPS] Fix build error on processors that don's support copy-on-write.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-28[MIPS] Initialize S-cache function pointers even on S-cache-less CPUs.Ralf Baechle1-5/+11
When a CPU has no scache, the scache flushing functions currently aren't getting initialized and the NULL pointer is eventually called as a function. Initialize the scache flushing functions as a noop when there's no scache. Initial patch by me and most of the debugging done by Martin Michlmayr. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-27[MIPS] Use generic compat routines for readdir, getdentsAtsushi Nemoto3-57/+3
Not just cleanup but also fixes O32 readdir(2) emulation. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-27[MIPS] SMP: Fix initialization order bug.Ralf Baechle6-29/+30
A recent change requires cpu_possible_map to be initialized before smp_sched_init() but most MIPS platforms were initializing their processors in the prom_prepare_cpus callback of smp_prepare_cpus. The simple fix of calling prom_prepare_cpus from one of the earlier SMP initialization hooks doesn't work well either since IPIs may require init_IRQ() to have completed, so bit the bullet and split prom_prepare_cpus into two initialization functions, plat_smp_setup which is called early from setup_arch and plat_prepare_cpus called where prom_prepare_cpus used to be called. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-24[PATCH] flags parameter for linkatUlrich Drepper1-1/+1
I'm currently at the POSIX meeting and one thing covered was the incompatibility of Linux's link() with the POSIX definition. The name. Linux does not follow symlinks, POSIX requires it does. Even if somebody thinks this is a good default behavior we cannot change this because it would break the ABI. But the fact remains that some application might want this behavior. We have one chance to help implementing this without breaking the behavior. For this we could use the new linkat interface which would need a new flags parameter. If the new parameter is AT_SYMLINK_FOLLOW the new behavior could be invoked. I do not want to introduce such a patch now. But we could add the parameter now, just don't use it. The patch below would do this. Can we get this late patch applied before the release more or less fixes the syscall API? Signed-off-by: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-21[MIPS] Disable CONFIG_ISCSI_TCP; it triggers a gcc 3.4 endless loop.Ralf Baechle1-4/+9
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Yosemite: Fix build damage by dc8f6029cd51af1b148846a32e68d69013a5cc0f.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] jiffies_to_compat_timeval fixAtsushi Nemoto2-4/+6
The last argument of div_long_long_rem() must be long. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Add topology_init.Rojhalat Ibrahim1-0/+20
A recent patch introduced cpu topology in sysfs. When you run a kernel with SMP and sysfs enabled, you now get an Oops on boot. The following patch fixes that by adding topology_init to arch/mips/kernel/smp.c. The code is copied from arch/s390/kernel/smp.c. Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Fix compiler warnings in arch/mips/sibyte/bcm1480/irq.cMartin Michlmayr1-3/+2
Fix the following compiler warnings: CC arch/mips/sibyte/bcm1480/irq.o arch/mips/sibyte/bcm1480/irq.c: In function ‘bcm1480_set_affinity’: arch/mips/sibyte/bcm1480/irq.c:168: warning: ISO C90 forbids mixed declarations and code arch/mips/sibyte/bcm1480/irq.c: In function ‘ack_bcm1480_irq’: arch/mips/sibyte/bcm1480/irq.c:230: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Sibyte: Config option names shouldn't be prefixed with CONFIG_Ralf Baechle1-2/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Sibyte: #if CONFIG_* doesn't fly.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] N32: Make sure pointer is good before passing it to sys_waitid().Ralf Baechle1-0/+3
After all we're calling sys_waitid() with fs set to KERNEL_DS ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] N32: Fix N32 rt_sigtimedwait and rt_sigsuspend breakage.Ralf Baechle3-21/+35
Originally found through an oops in the Gentoo N32 userland build; patch based on original patch by Daniel Jacobwitz. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Reformat _sys32_rt_sigsuspend with tabs instead of space for consistency.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Make do_signal32 return void.Martin Michlmayr1-5/+3
do_signal has been changed to return void since the "return value is ignored everywhere". Convert do_signal32 accordingly. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Add support for TIF_RESTORE_SIGMASK for signal32Martin Michlmayr1-27/+41
Following the recent implementation of TIF_RESTORE_SIGMASK in arch/mips/kernel/signal.c, 64-bit kernels with 32-bit user-land compatibility oops when starting init. signal32.c needs to be converted to use TIF_RESTORE_SIGMASK too. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-21[MIPS] Make integer overflow exceptions in kernel mode fatal.Ralf Baechle1-1/+3
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Fix typo in _sys32_rt_sigreturn and _sysn32_rt_sigreturn.Atsushi Nemoto2-2/+2
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] RM9000: Fix buggy I-cache workaround.Thomas Koeller1-1/+1
Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] MT: Propagate config7 into VPE.Ralf Baechle1-0/+3
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] MT: Fix c0 back-to-back hazard.Ralf Baechle1-0/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Get rid of kludgery needed to keep stdargs of old compilers working.Ralf Baechle1-1/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Add protected_blast_icache_range, blast_icache_range, etc.Atsushi Nemoto2-151/+23
Add blast_xxx_range(), protected_blast_xxx_range() etc. for common use. They are built by __BUILD_BLAST_CACHE_RANGE(). Use protected_cache_op() macro for various protected_ routines. Output code should be logically same. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Rewrite get_wchan and its helper functions using kallsyms_lookup.Atsushi Nemoto1-81/+77
Implement get_wchan() and frame_info_init() using kallsyms_lookup(). This fixes problem with static sched/lock functions and mfinfo[] maintenance issue. If CONFIG_KALLSYMS was disabled, get_wchan() just returns thread_saved_pc() value. Also unwind stackframe based on "addiu sp,-imm" analysis instead of frame pointer. This fixes problem with functions compiled without -fomit-frame-pointer. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Remove commented out function prom_build_cpu_map.Ralf Baechle1-29/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-13[PATCH] MIPS 32bit machines need fstatat64 support.Yoichi Yuasa1-1/+1
As noted by Jan Dittmer <jdi@l4x.org> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-08Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds9-24/+19
2006-02-08[MIPS] Sparse: Add __user tags to syscall.cAtsushi Nemoto1-22/+26
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-02-08[MIPS] Wire up new syscalls.Ralf Baechle4-0/+68
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-02-08[MIPS] Make do_signal return void.Ralf Baechle2-6/+5
It's return value is ignored everywhere. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-02-08[MIPS] Add support for TIF_RESTORE_SIGMASK.Ralf Baechle4-44/+58
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-02-07[MIPS] Clear ST0_RE on bootup.Ralf Baechle1-1/+1
The reset state is undefined and some firmware doesn't clear this bit possibly resulting in crashes on entry into userland. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] TX49x7: Fix reporting of the CPU name and PCI clockSergei Shtylylov2-49/+97
I've noticed that PCI clock was incorrectly reported as 66 MHz while being mere 33 MHz on RBTX4937 board -- this was due to the different encoding of the PCI divisor field in CCFG register between TX4927 and TX4937 chips... Also, RBTX49x7 was printed out as a CPU name (e.g., "CPU is RBTX4937"); and some debug printk() were duplicating each other... Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Fix linker script to work for non-4K page size.Ralf Baechle1-5/+6
Very much to my surprise Fuxin Zhang reports this is all it takes to get the kernel to work for page sizes larger than 4kB. This also paves the way for support for the R6000 and R8000 which don't support 4kB page size. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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