linux-stable.git/arch/mips, branch linux-2.6.16.y

[PATCH] MIPS: Fix branch emulation for floating-point exceptions.

2006-05-01T19:03:44+00:00

In the branch emulation for floating-point exceptions, __compute_return_epc
must determine for bc1f et al which condition code bit to test. This is
based on bits <4:2> of the rt field. The switch statement to distinguish
bc1f et al needs to use only the two low bits of rt, but the old code tests
on the whole rt field.  This patch masks off the proper bits.

Signed-off-by: Win Treese 
Signed-off-by: Ralf Baechle 
Signed-off-by: Greg Kroah-Hartman

[PATCH] MIPS: Fix tx49_blast_icache32_page_indexed.

2006-05-01T19:03:44+00:00

Fix the cache index value in tx49_blast_icache32_page_indexed().
This is damage by de62893bc0725f8b5f0445250577cd7a10b2d8f8 commit.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Ralf Baechle 
Signed-off-by: Greg Kroah-Hartman

[MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.

2006-03-18T16:59:31+00:00

Signed-off-by: Ralf Baechle

[MIPS] Sibyte: Fix race in sb1250_gettimeoffset().

2006-03-18T16:59:30+00:00

    
From Dave Johnson :
    
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

[MIPS] Sibyte: Fix interrupt timer off by one bug.

2006-03-18T16:59:30+00:00

    
From Dave Johnson :
    
The timers need to be loaded with 1 less than the desired interval not
the interval itself.
    
Signed-off-by: Ralf Baechle

[MIPS] Protect more of timer_interrupt() by xtime_lock.

2006-03-18T16:59:29+00:00

    
From Dave Johnson :

* 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

[MIPS] Simple patch to power off DBAU1200

2006-03-18T16:59:28+00:00

    
Signed-off-by: Matej Kupljen 
Signed-off-by: Ralf Baechle

[MIPS] Fix DBAu1550 software power off.

2006-03-18T16:59:27+00:00

    
Signed-off-by: Sergei Shtylyov 
Signed-off-by: Ralf Baechle

[MIPS] local_r4k_flush_cache_page fix

2006-03-18T16:59:27+00:00

    
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 
Signed-off-by: Ralf Baechle

[MIPS] Get rid of the IP22-specific code in arclib.

2006-03-18T16:59:26+00:00

    
This breaks the kernel build if sgiwd93 was configured as a module.
    
Signed-off-by: Ralf Baechle