- 29 Nov, 2006 2 commits
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Ralf Baechle authored
Signed-off-by:Ralf Baechle <ralf@linux-mips.org>
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Atsushi Nemoto authored
r4k_flush_cache_all() and r4k_flush_cache_mm() case: these are noop if the CPU did not have dc_aliases. It would mean we do not need to care about icache here. r4k_flush_cache_range case: if r4k_flush_cache_mm() did not need to care about icache, it would be same for this function. Signed-off-by:
Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by:
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- 01 Oct, 2006 1 commit
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Atsushi Nemoto authored
__flash_icache_page is unused, so kill it. Signed-off-by:
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- 27 Sep, 2006 4 commits
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Ralf Baechle authored
With more recent compilers inline doesn't necessarily means a function will always be inlined. So leave that decission to the compiler and make the function as __init. Signed-off-by: -
Atsushi Nemoto authored
c-r4k.c and c-sb1.c use drop_mmu_context() to flush virtually tagged I-caches, but this does not work for flushing other task's icache. This is for example triggered by copy_to_user_page() called from ptrace(2). Use indexed flush for such cases. Signed-off-by:
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Ralf Baechle authored
On the 34K the redundant cache operations were causing excessive stalls resulting in realtime code running on the second VPE missing its deadline. For all other platforms this patch is just a significant performance improvment as illustrated by below benchmark numbers. Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------------------ Host OS Mhz null null open slct sig sig fork exec sh call I/O stat clos TCP inst hndl proc proc proc --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 25Kf 2.6.18-rc4 533 0.49 1.16 7.57 33.4 30.5 1.34 12.4 5497 17.K 54.K 25Kf 2.6.18-rc4-p 533 0.49 1.16 6.68 23.0 30.7 1.36 8.55 5030 16.K 48.K 4Kc 2.6.18-rc4 80 4.21 15.0 131. 289. 261. 16.5 258. 18.K 70.K 227K 4Kc 2.6.18-rc4-p 80 4.34 13.1 128. 285. 262. 18.2 258. 12.K 52.K 176K 34Kc 2.6.18-rc4 40 5.01 14.0 61.6 90.0 477. 17.9 94.7 29.K 108K 342K 34Kc 2.6.18-rc4-p 40 4.98 13.9 61.2 89.7 475. 17.6 93.7 8758 44.K 158K BCM1480 2.6.18-rc4 700 0.28 0.60 3.68 5.92 16.0 0.78 5.08 931. 3163 15.K BCM1480 2.6.18-rc4-p 700 0.28 0.61 3.65 5.85 16.0 0.79 5.20 395. 1464 8385 TX49-16K 2.6.18-rc3 197 0.73 2.41 19.0 37.8 82.9 2.94 17.5 4438 14.K 56.K TX49-16K 2.6.18-rc3-p 197 0.73 2.40 19.9 36.3 82.9 2.94 23.4 2577 9103 38.K TX49-32K 2.6.18-rc3 396 0.36 1.19 6.80 11.8 41.0 1.46 8.17 2738 8465 32.K TX49-32K 2.6.18-rc3-p 396 0.36 1.19 6.82 10.2 41.0 1.46 8.18 1330 4638 18.K Original patch by me with enhancements by Atsushi Nemoto. Signed-off-by: -
Ralf Baechle authored
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- 13 Jul, 2006 4 commits
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Yoichi Yuasa authored
Signed-off-by:Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by:
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Yoichi Yuasa authored
Signed-off-by:
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Yoichi Yuasa authored
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Ralf Baechle authored
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- 30 Jun, 2006 1 commit
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Jörn Engel authored
Signed-off-by:
Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by:
Adrian Bunk <bunk@stusta.de>
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- 29 Jun, 2006 4 commits
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Ralf Baechle authored
Signed-off-by: -
Ralf Baechle authored
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Chris Dearman authored
Don't ask. Signed-off-by:
Chris Dearman <chris@mips.com> Signed-off-by:
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Chris Dearman authored
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- 05 Jun, 2006 1 commit
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Sergei Shtylyov authored
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:
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- 31 May, 2006 3 commits
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Kumba authored
Signed-off-by:
Joshua Kinard <kumba@gentoo.org> Signed-off-by:
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Ralf Baechle authored
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: -
Nigel Stephens authored
The 34K is very much like a 24K on steroids. Signed-off-by:
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- 18 Apr, 2006 3 commits
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Atsushi Nemoto authored
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Ralf Baechle authored
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Atsushi Nemoto authored
Fix the cache index value in tx49_blast_icache32_page_indexed(). This is a damage by de62893b commit. Signed-off-by:
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- 21 Mar, 2006 1 commit
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Atsushi Nemoto authored
The TX49XX has the prefetch instruction. It supports only Pref_Load (hint 0). Actually changes in this patch except for Kconfig are not have any effects, I added these changes to prevent misuse of unsupported hints. Signed-off-by:
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- 18 Mar, 2006 1 commit
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Atsushi Nemoto authored
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:
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- 28 Feb, 2006 1 commit
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Ralf Baechle authored
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:
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- 14 Feb, 2006 1 commit
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Atsushi Nemoto authored
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:
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- 07 Feb, 2006 1 commit
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Atsushi Nemoto authored
This fixes sparse warnings 'dereference of noderef expression'. Signed-off-by:
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- 10 Jan, 2006 1 commit
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Ralf Baechle authored
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- 29 Oct, 2005 11 commits
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Ralf Baechle authored
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Ralf Baechle authored
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Thiemo Seufer authored
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Thiemo Seufer <ths@networkno.de> Signed-off-by:
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Thiemo Seufer authored
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Thiemo Seufer authored
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Thiemo Seufer authored
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Ralf Baechle authored
will also avoid smp_call_function from doing stupid things when called from a CPU that is not yet marked online. Signed-off-by: -
Ralf Baechle authored
a little polishing. Signed-off-by: -
Ralf Baechle authored
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Ralf Baechle authored
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Thiemo Seufer authored
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