- 11 7月, 2007 2 次提交
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由 Fuxin Zhang 提交于
Signed-off-by: NFuxin Zhang <zhangfx@lemote.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Which will cut down the cost of RDHWR $29 which is used to obtain the TLS pointer and so far being emulated in software down to a single cycle operation. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 06 7月, 2007 1 次提交
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由 Ralf Baechle 提交于
The idle loop goes to sleep using the WAIT instruction if !need_resched(). This has is suffering from from a race condition that if if just after need_resched has returned 0 an interrupt might set TIF_NEED_RESCHED but we've just completed the test so go to sleep anyway. This would be trivial to fix by just disabling interrupts during that sequence as in: local_irq_disable(); if (!need_resched()) __asm__("wait"); local_irq_enable(); but the processor architecture leaves it undefined if a processor calling WAIT with interrupts disabled will ever restart its pipeline and indeed some processors have made use of the freedom provided by the architecture definition. This has been resolved and the Config7.WII bit indicates that the use of WAIT is safe on 24K, 24KE and 34K cores. It also is safe on 74K starting revision 2.1.0 so enable the use of WAIT with interrupts disabled for 74K based on a c0_prid of at least that. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 27 6月, 2007 1 次提交
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由 Ralf Baechle 提交于
We used to avoid the WAIT entirely on the 20K but really only need to do this on early revs of the 20K. Without this a 20K was a bit of a power hog. Well, in the lower power power hog category ;-) Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 20 2月, 2007 1 次提交
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由 Atsushi Nemoto 提交于
This fixes some sparse warnings. ("warning: symbol 'foo' was not declared. Should it be static?") Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 19 2月, 2007 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 07 2月, 2007 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 30 11月, 2006 1 次提交
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由 Ralf Baechle 提交于
Not useful and quite a big of noise on bootup of large systems. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 10 10月, 2006 1 次提交
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由 Ralf Baechle 提交于
Only revisions < 4.0 don't have a functional wait instruction. From Thomas Koeller (Thomas.Koeller@baslerweb.com). Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 27 9月, 2006 1 次提交
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由 Atsushi Nemoto 提交于
If a thread became runnable between need_resched() and the WAIT instruction, switching to the thread will delay until a next interrupt. Some CPUs can execute the WAIT instruction with interrupt disabled, so we can get rid of this race on them (at least UP case). Original Patch by Atsushi with fixing up for MIPS Technology's cores by Ralf based on feedback from the RTL designers. Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 14 7月, 2006 2 次提交
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由 Thiemo Seufer 提交于
The appended patch drops the inline for decode_configs, this saves about 2k of text size. Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Thiemo Seufer 提交于
Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 01 7月, 2006 1 次提交
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由 Jörn Engel 提交于
Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: NAdrian Bunk <bunk@stusta.de>
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- 30 6月, 2006 1 次提交
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由 Chris Dearman 提交于
Signed-off-by: NChris Dearman <chris@mips.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 06 6月, 2006 1 次提交
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由 Ralf Baechle 提交于
The wrong revision number in the check was forcing a fallback to FPU emulation for all SB1 cores in 2.6. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 01 6月, 2006 2 次提交
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由 Kumba 提交于
Signed-off-by: NJoshua Kinard <kumba@gentoo.org> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Chris Dearman 提交于
Nothing exciting; Linux just didn't know it yet so this is most adding a value to a case statement. Signed-off-by: NChris Dearman <chris@mips.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 21 3月, 2006 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 07 2月, 2006 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 10 1月, 2006 2 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 01 12月, 2005 1 次提交
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由 Ralf Baechle 提交于
... because they have R4000-style caches. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 30 10月, 2005 18 次提交
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由 Andrew Isaacson 提交于
Signed-Off-By: NAndy Isaacson <adi@broadcom.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Andrew Isaacson 提交于
Fix typo in cpu_probe_sibyte. Signed-Off-By: NAndy Isaacson <adi@broadcom.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Thiemo Seufer 提交于
Signed-off-by: NThiemo Seufer <ths@networkno.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Pete Popov 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
options and the precense of the MT ASE. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Maciej W. Rozycki 提交于
TLB, so no need to set it separately for each implementation. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
So for now we just unconditionally set the option - Linux wouldn't work without a TLB anyway. Setting MIPS_CPU_4KTLB was missing for Alchemy and Sandcraft, add that back. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Pete Popov 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Pete Popov 提交于
Additional work necessary to completely remove that config option. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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