9202f32558
[MIPS] Export local_flush_data_cache_page for sake of IDE.
...
On a CPU with aliases the IDE core needs to flush caches in the special
IDE variants of insw, insl etc. If IDE support is built as a module this
will only work if local_flush_data_cache_page happens is exported as a
module.
As per policy export local_flush_data_cache_page as GPL symbol only.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-12-10 21:52:11 +00:00
c59a0f15be
[MIPS] Remove __flush_icache_page
...
__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 >
2006-10-01 23:16:58 +01:00
585fa72493
[MIPS] Retire flush_icache_page from mm use.
...
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 >
2006-09-27 13:37:34 +01:00
6ab3d5624e
Remove obsolete #include <linux/config.h>
...
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de >
Signed-off-by: Adrian Bunk <bunk@stusta.de >
2006-06-30 19:25:36 +02:00
7e3bfc7cfc
[MIPS] Handle IDE PIO cache aliases on SMP.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-04-19 04:14:29 +02:00
d4264f1839
[MIPS] Remove wrong __user tags.
...
This fixes sparse warnings 'dereference of noderef expression'.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp >
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2006-02-07 13:30:25 +00:00
750ccf687f
Fix zero length sys_cacheflush
...
Cacheflush(0, 0, 0) was crashing the system. This is because
flush_icache_range(start, end) tries to flushing whole address space
(0 - ~0UL) if both start and end are zero.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp >
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:32:44 +01:00
02cf211968
Cleanup the mess in cpu_cache_init.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:32:32 +01:00
6e760c8dae
Rename CONFIG_CPU_MIPS{32,64} to CONFIG_CPU_MIPS{32|64}_R1.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:31:37 +01:00
53de0d471f
Reformat; cosmetic cleanups.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:30:57 +01:00
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
fe00f943e0
Sparseify MIPS.
...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org >
2005-10-29 19:30:50 +01:00
1da177e4c3
Linux-2.6.12-rc2
...
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!
2005-04-16 15:20:36 -07:00
