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78 Commits

Author SHA1 Message Date
Ralf Baechle
1d74f6bc85 __compute_return_epc() uses CFC1 instruction which might result in a 
coprocessor unusable exception since the process can lose its fpu
context by preemption.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:13 +01:00
Maciej W. Rozycki
d547c5cc21 sys_nfsservctl() needs translation. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:13 +01:00
Ralf Baechle
b382fe8483 No point in checking cpu_has_tlb before we've computed the CPU options. 
So for now we just unconditionally set the option - Linux wouldn't
work without a TLB anyway.
    
Setting MIPS_CPU_4KTLB was missing for Alchemy and Sandcraft, add that
back.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:13 +01:00
Ralf Baechle
4194318c39 Cleanup decoding of MIPSxx config registers. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:12 +01:00
Ralf Baechle
cd21dfcfbb Fix preemption and SMP problems in the FP emulator code. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:12 +01:00
Thiemo Seufer
cce812c99c Ustat needs a wrapper on n32. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:08 +01:00
Ralf Baechle
1fcf1cc742 We pass a kernel pointer to do_sigaltstack in sys32_sigaltstack, so 
we need to do the set_fs(KERNEL_DS) thing around this call.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:06 +01:00
Ralf Baechle
3c37026d43 NPTL, round one. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:06 +01:00
Ralf Baechle
f03da6e28e Fix BogoMIPS display on UP and some minor cosmetical things. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:05 +01:00
Thiemo Seufer
589391a0fe fcntl64 needs to be wrapped for n32. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:04 +01:00
Ralf Baechle
05b8042ac6 Fix one more case of computing the return EPC after the registers have 
already been modified.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:04 +01:00
Ralf Baechle
6dd0468852 When simulating ll/sc compute the return EPC before modifying the 
registers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:04 +01:00
Ralf Baechle
2b07bd0235 Detect the 4KEcR2 and for now detect handle it like the 4KEc. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:03 +01:00
Pete Popov
fe359bf584 Fixed buglet with previous patch that broke non au1x builds. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:02 +01:00
Pete Popov
494900af68 Remove CONFIG_PM dependency from au1x wait in cpu_probe. 
Additional work necessary to completely remove that config option.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:02 +01:00
Thiemo Seufer
1b3a6e975c Fix 64bit SMP TLB handler and stack frame handling, optimize 32bit SMP 
TLB handlers a bit, match definitions in pgtable-{32,64}.h better.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:31:00 +01:00
Ralf Baechle
209ac8ddb1 Use compat_sigval_t in struct compat_siginfo. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:58 +01:00
Ralf Baechle
1592dac241 Reformatting, remove debugging code. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:57 +01:00
Ralf Baechle
b4dbf95e30 Get rid of the the remains of 2.4-style ramdisk support. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:57 +01:00
Ralf Baechle
71e0e556db Multithreaded core dumps. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:56 +01:00
Thiemo Seufer
90a67b5909 sys_futex has 6 arguments. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:55 +01:00
Ralf Baechle
9ff77c469e Export shm_align_mask and flush_data_cache_page. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:54 +01:00
Ralf Baechle
77c728c224 Gcc 4.0 fixes. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:53 +01:00
Ralf Baechle
cdaed73afb Fix preemption bug. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:51 +01:00
Ralf Baechle
fe00f943e0 Sparseify MIPS. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:50 +01:00
Ralf Baechle
14f18b7f7e On 24K we did always disable cache parity protection - obviously not 
the greatest thing to do.  Try to enable parity protection, check if
we actually succeeded and print a message about the outcome of this.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:49 +01:00
Ralf Baechle
0f04afb595 ISOify. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:48 +01:00
Pete Popov
e3ad1c23ba Base Au1200 2.6 support. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:47 +01:00
Steven J. Hill
784f7b9d89 Fix 'prctl' system call for IRIX. At this point IRIX 5.3 static binaries 
are now working for 80% of the ones I have tried. The other ones that do
not work all fail in the same way with the same messages. Once that bug
is tracked down, we should be in good shape. Task locking still needs
some work.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:47 +01:00
Ralf Baechle
8ab00b9a02 Convert struct hw_interrupt_type initializations to ISO C99 named 
initializers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:46 +01:00
Ralf Baechle
b727a60258 Merge do_boot_cpu() into the new style __cpu_up(). 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:43 +01:00
Ralf Baechle
0ac354801a On multiprocessor systems the BogoMIPS for each CPU was reported was 
the value for the last CPU having calibrated it's delay loop.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:42 +01:00
Thiemo Seufer
dc953df1ba Fix wchan implementation, based on earlier by from Atsushi Nemoto. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:40 +01:00
Thiemo Seufer
4e6a05fe5f Improved modules loader, more robust and works on 64bit kernels. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:39 +01:00
Steven J. Hill
7ee8798f37 Until I figure out why NFS filesystems are having problems with 
the 'load_irix_binary' and having kernel faults, Irix support is
disabled. I suspect locking of some sort, but I will now have to
investigate further.

Static IRIX binaries are now being detected properly and are using the
ELF interpreter found in this file.

Signed-off-by: Steven J. Hill <sjhill@realitydiluted.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:39 +01:00
Ralf Baechle
d1abb6a2b8 32-bit compatibility for various timer-related system calls. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:37 +01:00
Ralf Baechle
a982099ca5 Update to match the native siginfo structure and code. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:36 +01:00
Ralf Baechle
09276d905e 32-bit compatibility for ptrace GETEVENTMSG operation. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:36 +01:00
Ralf Baechle
54f2da755b Implement 32-bit compatibility for waitid(2). 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:35 +01:00
Ralf Baechle
a19050f301 Waitid(2) now has 5 arguments. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:34 +01:00
Ralf Baechle
b6e203d84d Use generic compat_sys_wait4 to implement 32-bit wait4(2). 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:34 +01:00
Ralf Baechle
57f0060b8a Document why calling smp_call_function will deadlock when called with 
interrupts disabled.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:30 +01:00
Ralf Baechle
a18815abcd Use preempt_schedule_irq. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:27 +01:00
Maciej W. Rozycki
925ddb04c5 Mask and ack CPU interrupts upon initialization. Keep the state 
of software interrupts when unmasking.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:24 +01:00
Ralf Baechle
c6237645d1 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Fix TASK_SIZE for 32-bit processes on 64-bit kernels.
 2005-10-29 19:30:19 +01:00
Ralf Baechle
b053c98fbb Fix register layout in o32 core dumps on 64-bit systems. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:19 +01:00
Ralf Baechle
c83cfc9c94 Get rid of early_init. There's more need to make this form of 
initialization actually useful and as is certainly unmergable with
upstream.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:18 +01:00
Ralf Baechle
8c93650890 Dummy ISA DMA functions for systems that don't have ISA but share 
drivers with ISA such as legacy free PCI.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:17 +01:00
Ralf Baechle
b188ffe876 Fix build with SMP disabled and preemption enabled. 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:17 +01:00
Thiemo Seufer
0964ce24d0 Move the invalid pmd and pte tables from .data to .bss. Fix alignment. 
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2005-10-29 19:30:16 +01:00