Guo Ren dc140045c0 csky: Fixup defer cache flush for 610 ... We use defer cache flush mechanism to improve the performance of 610, but the implementation is wrong. We fix it up now and update the mechanism: - Zero page needn't be flushed. - If page is file mapping & non-touched in user space, defer flush. - If page is anon mapping or dirty file mapping, flush immediately. - In update_mmu_cache finish the defer flush by flush_dcache_page(). For 610 we need take care the dcache aliasing issue: - VIPT cache with 8K-bytes size per way in 4K page granularity. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Cc: Arnd Bergmann <arnd@arndb.de>		2019-08-20 20:09:14 +08:00
..
abiv1	csky: Fixup defer cache flush for 610	2019-08-20 20:09:14 +08:00
abiv2	arch/csky patches for 5.3-rc1	2019-07-19 12:15:33 -07:00
boot	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
configs
include	csky: Fixup ioremap function losing	2019-08-15 19:21:28 +08:00
kernel	arch/csky patches for 5.3-rc1	2019-07-19 12:15:33 -07:00
lib	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
mm	csky: Fixup ioremap function losing	2019-08-15 19:21:28 +08:00
Kconfig	csky: Select intc & timer drivers	2019-07-19 14:21:36 +08:00
Kconfig.debug	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG	2019-06-09 15:08:18 +09:00