| Commit message (Collapse) | Author | Age | Files | Lines |
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need to be at the same place for MIPS32 and MIPS64. Make the semaphore
code actually compile.
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o moved to original 2.3.19 NCR53C9x driver
o CONFIG_ULTRIX_PARTION is working again and now big endian proof
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o dz fixes by David Airlie
o small zs fix (init is fast again)
o #ifdef in softirq.h fixed
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- Fix siginfo structure definition
- Ptrace fixes, one of them was an uninitialized pointer.
- Header file fixes.
- Fixes to linker scripts required for new binutils.
- MIPS64. Chainsaw edition.
Btw, Harald, why does the kernel no longer compile ...
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o only code for the configured CPU is compiled
and linked (saves ~100k for R3000 kernels!)
o removed a lot of indirect function calls
o removed Ralf's "cowboy patch"
o added sanity check for DECstations (print warning
if the kernel is configured for the wrong CPU)
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Indigo anyone? :-)
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WARNING: 2.3.7 is known to eat filesystems for breakfast and little
children for lunch, so if you try this on your machine make backups
first ...
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have a MIPS box at hand.
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the new DECstation and Baget stuff :-)
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(Did I mention that CVS is buggy ...)
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o Implement handlers for VCEI / VCED exceptions. Install them only on
SC / MC versions of the R4000 and R4400 which saves us four
instructions per exception on other CPUs.
o Print the number of VCED / VCEI exceptions in /proc/cpuinfo, iff
available.
o Many performance fixes for the SC / MC versions of R4000 and R4400.
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- Bugfixes.
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o New Newport console code.
o New G364 console code.
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o Cleanup the machine dependencies of floppy and rtc. The driver for
the Dallas thingy in the Indy is still missing.
o Handle allocation of zero'd pages correct for R4000SC / R4400SC.
o Page colouring shit to match the virtual and physical colour of all
mapped pages. This tends to produce extreme fragmentation problems,
so it's deactivated for now. Users of R4000SC / R4400SC may re-enable
the code in arch/mips/mm/init.c by removing the definition of
CONF_GIVE_A_SHIT_ABOUT_COLOURS. Should get them somewhat further -
but don't shake to hard ...
o Fixed ptrace(2)-ing of syscalls, strace is now working again.
o Fix the interrupt forwarding from the keyboard driver to the psaux
driver, PS/2 mice are now working on the Indy. The fix is somewhat
broken as it prevents generic kernels for Indy and machines which handle
things different.
o Things I can't remember.
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o New clear_user.
o Memcpy now efficiently copies the (src^dest)&3 != 0.
o Memmove new correctly deals with overlaps
o Rewrite csum_partial in assembler.
o Rewrte csum_partial_from_user in assembler.
o __copy_user is now integrated with memcpy.
o get_user now returns a zero value on error.
o copy_from_user now clears the destination buffer on error.
o strncpy_user now has a more efficient caller routine.
o strlen_user now has a more efficient caller routines and is faster.
o The unaligned handler is now much cleaner. It's now also save from
interrupt. Some more esotheric bugs fixed as well.
o Don't export bcopy anymore, it's now a inline function.
o Delete ancient junk from the first days of Linux/MIPS.
o Delete dead code in indy_sc.c.
o Including the IDE driver doesn't crash an Indy anymore.
o Eleminate active_ds. We now use current_ds directly in the thread
structure which is faster and threadsafe. Saves almost 2kb on the
kernel.
o Serial console should work again.
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o First round of bugfixes for the SC/MC CPUs.
o FPU context switch fixes.
o Lazy context switches.
o Faster syscalls.
o Removed dead code.
o Shitloads of other things I forgot ...
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o Just count missed heartbeats on Indys but don't print a messages. This
was a bug by itself.
o Fix a crash in exit_mmap().
o Fix scanmem().
o Fix clear_active_bh(), a ~ was missing causing weak performance.
o Remove experimental cache instructions from stackframe.h. It wasn't
improving performance as I was hoping.
o Shrink the size of the exception handler routines in uaccess.h.
o Cleanup, remove dead code in various files.
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o Divide L1 cache sizes by 1024 before printing, makes the numbers a
bit more credible ...
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o New faster syscalls for 2.1.x, too
o Upgrade to 2.1.89.
Don't try to run this. It's flaky as hell. But feel free to debug ...
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On some MIPS boxes the firmware doesn't do that for us.
- We still had two unprotected loads in the sys_sigrestore(2). Use
__get_user().
- Handle QED-style L1 caches != 16kb per cache correctly.
- Protect the cacheflush instructions for the signal trampoline
just like the loads in __get_user(). Otherwise the following
code will result in a nice "Can not handle kernel paging request"
message:
#include <signal.h>
static void hurz(void)
{
}
main()
{
signal(SIGSEGV, hurz);
/* Chainsaw the stack pointer ... */
asm("move $29,%0" : :"r"(0x70000000));
*(int *) 8 = 0;
}
With the fix applied I still get the error message. The cause of
this problem is that gas produces an __ex_table section with wrong
contents. Oh well, how good that I have a nice working post 2.8.1
binutils version at home in good ol' Germany ...
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CVS archive.
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IMPORTANT NOTE: I could not figure out what information is the
one that should be used for the following files (ie, those
that were in our tree, or those that came from Linus' patch),
please, check these:
include/asm-mips/jazz.h
include/asm-mips/jazzdma.h
include/asm-mips/ioctls.h
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interrupt-land and a user application.
Vmalloc is now an inline function that calls vmalloc_prot with
the original protection bits used in vmalloc.
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registers. The actual context switch code is not
yet there. But the rest of the magic (mapping/unmapping
the registers on demand is already in).
o Interface for allowing binary-only console modules added.
o My RRM bits, nothing really interesting now.
For now, I am assuming in the code that there will be a minor per
real graphics device, and that the X server will go and open
/dev/graphicsN instead of opening /dev/graphics and using the
gfx_attach_board->board variable.
The interface the X server uses is not clear.
I believe it will be pretty easy to provide the stripped down
shmiq interface. Not only that, but we can even provide the
same ABI (yes, ABI) for SGI shmiq input modules (yep, looks
pretty easy once you have an strace that shows this information).
Now, the only thing missing is figuring what is wrong my current
conception of the use of shmiq. I just can't get it.
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cli(); sequences.
Fix a hole of some cycles when enabling the SCACHE on a Indy
where an interrupt might have fried us.
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bug #18 of the R4600 V1.7.
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