John David Anglin febe42964f parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm ... We have four routines in pacache.S that use temporary alias pages: copy_user_page_asm(), clear_user_page_asm(), flush_dcache_page_asm() and flush_icache_page_asm(). copy_user_page_asm() and clear_user_page_asm() don't purge the TLB entry used for the operation. flush_dcache_page_asm() and flush_icache_page_asm do purge the entry. Presumably, this was thought to optimize TLB use. However, the operation is quite heavy weight on PA 1.X processors as we need to take the TLB lock and a TLB broadcast is sent to all processors. This patch removes the purges from flush_dcache_page_asm() and flush_icache_page_asm. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Helge Deller <deller@gmx.de>		2016-12-07 09:01:21 +01:00
..
configs	mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS	2016-08-30 10:10:21 -07:00
include	parisc: Purge TLB before setting PTE	2016-12-07 08:56:40 +01:00
kernel	parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm	2016-12-07 09:01:21 +01:00
lib	parisc: Add hardened usercopy feature	2016-10-06 22:10:19 +02:00
math-emu	parisc: Fix typo in fpudispatch.c	2016-05-22 22:29:07 +02:00
mm	parisc: Show trap name in kernel crash	2016-10-11 20:52:47 +02:00
oprofile
defpalo.conf	parisc: switch to gzip-compressed vmlinuz kernel	2013-07-09 22:09:20 +02:00
install.sh	parisc: make "make install" not depend on vmlinux	2013-11-07 22:28:06 +01:00
Kconfig	parisc: Switch to generic sched_clock implementation	2016-11-25 12:31:58 +01:00
Kconfig.debug	parisc: Fix ftrace function tracer	2016-04-14 17:47:19 +02:00
Makefile	parisc: Fix ftrace function tracer	2016-04-14 17:47:19 +02:00
nm