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
..
.gitignore
asm-offsets.c	parisc: Unbreak handling exceptions from kernel modules	2016-04-08 22:14:14 +02:00
audit.c	parisc: add kernel audit feature	2013-11-07 22:27:20 +01:00
binfmt_elf32.c	parisc: fix redefinition of SET_PERSONALITY	2013-03-02 20:15:28 +01:00
cache.c	parisc: Fix races in parisc_setup_cache_timing()	2016-11-25 12:31:57 +01:00
compat_audit.c	parisc: add kernel audit feature	2013-11-07 22:27:20 +01:00
drivers.c	parisc: use KERN_CONT when printing device inventory	2016-11-02 23:04:46 +01:00
entry.S	parisc: Add cfi_startproc and cfi_endproc to assembly code	2016-10-05 22:54:40 +02:00
firmware.c	parisc: Add break statements to pdc_pat_io_pci_cfg_read()	2016-08-02 16:44:33 +02:00
ftrace.c	ftrace: Add return address pointer to ftrace_ret_stack	2016-08-24 12:15:14 +02:00
hardware.c	parisc: add serial ports of C8000/1GHz machine to hardware database	2014-07-13 15:51:58 +02:00
head.S	parisc: Fix ftrace function tracer	2016-04-14 17:47:19 +02:00
hpmc.S	parisc: Add cfi_startproc and cfi_endproc to assembly code	2016-10-05 22:54:40 +02:00
inventory.c	parisc: Fix printk continuations in system detection	2016-11-22 18:09:33 +01:00
irq.c	parisc: Filter out spurious interrupts in PA-RISC irq handler	2015-09-08 15:31:16 +02:00
Makefile	parisc: Fix ftrace function tracer	2016-04-14 17:47:19 +02:00
module.c	parisc: Handle R_PARISC_PCREL32 relocations in kernel modules	2016-04-08 22:10:35 +02:00
pa7300lc.c
pacache.S	parisc: Remove unnecessary TLB purges from flush_dcache_page_asm and flush_icache_page_asm	2016-12-07 09:01:21 +01:00
parisc_ksyms.c	parisc: Avoid function pointers for kernel exception routines	2016-04-08 22:13:45 +02:00
pci-dma.c	parisc: Fix race in pci-dma.c	2016-11-25 12:31:59 +01:00
pci.c	parisc: Initialize PCI bridge cache line and default latency	2016-01-12 22:03:21 +01:00
pdc_chassis.c	parisc: single_open() leaks	2013-05-05 00:10:41 -04:00
pdc_cons.c	parisc: don't use module_init for non-modular core pdc_cons code	2015-06-16 14:12:30 -04:00
perf_asm.S
perf_images.h
perf.c	parisc64: don't use module_init for non-modular core perf code	2015-06-16 14:12:30 -04:00
process.c	exit_thread: remove empty bodies	2016-05-20 17:58:30 -07:00
processor.c	parisc: Fix automatic selection of cr16 clocksource	2016-08-20 13:33:51 +02:00
ptrace.c	parisc/ptrace: run seccomp after ptrace	2016-06-14 10:54:44 -07:00
real2.S	parisc: Add cfi_startproc and cfi_endproc to assembly code	2016-10-05 22:54:40 +02:00
setup.c	parisc: Fix races in parisc_setup_cache_timing()	2016-11-25 12:31:57 +01:00
signal32.c	parisc: Fix SIGSYS signals in compat case	2016-03-31 12:28:37 +02:00
signal32.h	constify copy_siginfo_to_user{,32}()	2013-11-09 00:16:29 -05:00
signal.c	parisc: Fix syscall restarts	2015-12-21 10:16:18 +01:00
smp.c	parisc: Check return value of smp_boot_one_cpu()	2016-09-20 18:02:36 +02:00
stacktrace.c
sys_parisc32.c	parisc: drop unused defines and header includes	2014-07-13 15:56:12 +02:00
sys_parisc.c	parisc: Drop alloc_hugepages and free_hugepages syscalls	2016-03-23 15:42:18 +01:00
syscall_table.S	parisc: Wire up preadv2 and pwritev2 syscalls	2016-03-23 16:22:42 +01:00
syscall.S	parisc: Use LINUX_GATEWAY_ADDR define instead of hardcoded value	2016-11-02 23:06:38 +01:00
time.c	parisc: Switch to generic sched_clock implementation	2016-11-25 12:31:58 +01:00
topology.c
traps.c	parisc: Show trap name in kernel crash	2016-10-11 20:52:47 +02:00
unaligned.c	parisc: Move die_if_kernel() prototype into traps.h header	2016-06-05 08:49:01 +02:00
unwind.c	parisc: Fix backtrace on PA-RISC	2016-06-04 22:05:07 +02:00
vmlinux.lds.S	parisc: Move exception table into read-only section	2016-10-09 13:29:07 +02:00