OpenCloudOS-Kernel

History

Vineet Gupta d4599baf5c ARC: cacheflush optim - PTAG can be loop invariant if V-P is const Line op needs vaddr (indexing) and paddr (tag match). For page sized flushes (V-P const), each line op will need a different index, but the tag bits wil remain constant, hence paddr can be setup once outside the loop. This improves select LMBench numbers for Aliasing dcache where we have more "preventive" cache flushing. 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 --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 3.11-rc7- Linux 3.11.0- 80 4.66 8.88 69.7 112. 268. 8.60 28.0 3489 13.K 27.K # Non alias ARC700 3.11-rc7- Linux 3.11.0- 80 4.64 8.51 68.6 98.5 271. 8.58 28.1 4160 15.K 32.K # Aliasing 3.11-rc7- Linux 3.11.0- 80 4.64 8.51 69.8 99.4 270. 8.73 27.5 3880 15.K 31.K # PTAG loop Inv Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2013-11-06 10:41:38 +05:30
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boot	ARC: Add some .gitignore entries	2013-08-26 09:40:24 +05:30
configs	Couple of Platform updates (Device Tree files primarily) given that the	2013-07-10 10:11:26 -07:00
include	ARC: cacheflush refactor #2 : I and D caches lines to have same size	2013-11-06 10:41:37 +05:30
kernel	ARC: use __weak instead of __attribute__((weak))	2013-11-06 10:40:37 +05:30
lib	ARC: [lib] strchr breakage in Big-endian configuration	2013-08-24 11:24:53 -07:00
mm	ARC: cacheflush optim - PTAG can be loop invariant if V-P is const	2013-11-06 10:41:38 +05:30
oprofile	ARC: OProfile support	2013-02-15 23:16:00 +05:30
plat-arcfpga	Couple of Platform updates (Device Tree files primarily) given that the	2013-07-10 10:11:26 -07:00
plat-tb10x	ARC: [TB10x] Updates for irqchip driver	2013-06-28 15:07:42 +05:30
Kbuild	ARC: Build system: Makefiles, Kconfig, Linker script	2013-02-11 20:00:25 +05:30
Kconfig	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
Kconfig.debug	consolidate per-arch stack overflow debugging options	2013-07-04 11:25:39 -07:00
Makefile	ARC: Adjustments for gcc 4.8	2013-06-27 14:35:32 +05:30