linux/arch/ppc/kernel
Becky Bruce b64f87c16f [POWERPC] Avoid unpaired stwcx. on some processors
The context switch code in the kernel issues a dummy stwcx. to clear the
reservation, as recommended by the architecture.  However, some processors
can have issues if this stwcx to address A occurs while the reservation
is already held to a different address B.  To avoid this problem, the dummy
stwcx. needs to be paired with a dummy lwarx to the same address.

This adds the dummy lwarx, and creates a cpu feature bit to indicate
which cpus are affected.  Tested on mpc8641_hpcn_defconfig in
arch/powerpc; build tested in arch/ppc.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-13 16:22:43 +11:00
..
asm-offsets.c
cpu_setup_power4.S
entry.S [POWERPC] Avoid unpaired stwcx. on some processors 2007-11-13 16:22:43 +11:00
head_4xx.S
head_8xx.S
head_44x.S [PPC] Use cpu setup routines from cpu_setup_44x.S for ARCH=ppc 2007-10-04 11:02:09 +10:00
head_booke.h
head_fsl_booke.S
head.S [POWERPC] Remove APUS support from arch/ppc 2007-09-17 15:15:04 +10:00
machine_kexec.c
Makefile
misc.S [POWERPC] 4xx: Deal with 44x virtually tagged icache 2007-11-01 07:15:30 -05:00
pci.c
ppc_htab.c
ppc_ksyms.c [POWERPC] Remove APUS support from arch/ppc 2007-09-17 15:15:04 +10:00
ppc-stub.c
relocate_kernel.S
rio.c
semaphore.c
setup.c [POWERPC] Remove APUS support from arch/ppc 2007-09-17 15:15:04 +10:00
smp-tbsync.c
smp.c
softemu8xx.c
time.c
traps.c pid namespaces: define is_global_init() and is_container_init() 2007-10-19 11:53:37 -07:00
vmlinux.lds.S [POWERPC] Fix ppc kernels after build-id addition 2007-09-22 14:49:21 +10:00