linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2007-10-11	[MIPS] Allow hardwiring of the CPU type to a single type for optimization.	Ralf Baechle	1	-3/+3
	This saves a few k on systems which only ever ship with a single CPU type. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-03-07	[MIPS] TX39: Remove redundant tx39_blast_icache() calls	Atsushi Nemoto	1	-12/+6
	Apply commit 0550d9d13e02b30efa117d47fcadea450bb23d23 to c-tx39.c too. And fix a warning in local_tx39_flush_data_cache_page(). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01	[MIPS] Remove __flush_icache_page	Atsushi Nemoto	1	-29/+0
	__flash_icache_page is unused, so kill it. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27	[MIPS] Retire flush_icache_page from mm use.	Ralf Baechle	1	-2/+2
	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 <ralf@linux-mips.org> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
2006-04-19	[MIPS] Handle IDE PIO cache aliases on SMP.	Ralf Baechle	1	-0/+7
	Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-18	[MIPS] local_r4k_flush_cache_page fix	Atsushi Nemoto	1	-1/+0
	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>
2006-02-14	[MIPS] Add protected_blast_icache_range, blast_icache_range, etc.	Atsushi Nemoto	1	-61/+9
	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>
2005-10-29	Cleanup the mess in cpu_cache_init.	Ralf Baechle	1	-1/+1
	Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29	Sync c-tx39.c with c-r4k.c.	Atsushi Nemoto	1	-4/+5
	tx39_flush_cache_range() does nothing if !cpu_has_dc_aliases. It should flush d-cache and invalidate i-cache since the TX39(H2) has separate I/D cache. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29	Avoid SMP cacheflushes. This is a minor optimization of startup but	Ralf Baechle	1	-0/+1
	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 <ralf@linux-mips.org>
2005-10-29	Update MIPS to use the 4-level pagetable code thereby getting rid of	Ralf Baechle	1	-1/+3
	the compacrapability headers. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-04-16	Linux-2.6.12-rc2	Linus Torvalds	1	-0/+493
	Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!