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

..

vdso32

powerpc32 vDSO: linker script indentation

2007-10-16 10:01:50 -07:00

vdso64

[POWERPC] Fix 64 bits vDSO DWARF info for CR register

2007-10-17 22:30:09 +10:00

align.c

[POWERPC] Handle alignment faults on SPE load/store instructions

2007-09-14 08:51:48 -05:00

asm-offsets.c

powerpc: add scaled time accounting

2007-10-18 14:37:28 -07:00

audit.c

…

binfmt_elf32.c

powerpc: Use linux/elfcore-compat.h

2007-10-17 08:42:51 -07:00

btext.c

[POWERPC] Clean out a bunch of duplicate includes

2007-08-17 11:01:51 +10:00

clock.c

[POWERPC] clk.h interface for platforms

2007-10-03 09:11:56 +10:00

compat_audit.c

…

cpu_setup_6xx.S

Spelling fix: explicitly

2007-10-19 23:22:55 +02:00

cpu_setup_44x.S

[POWERPC] 4xx: 440EPx/GRx incorrect write to DDR SDRAM errata workaround

2007-10-03 07:20:18 -05:00

cpu_setup_pa6t.S

…

cpu_setup_ppc970.S

…

cputable.c

[POWERPC] 4xx: Workaround for the 440EP(x)/GR(x) processors identical PVR issue.

2007-11-01 07:13:43 -05:00

crash_dump.c

[POWERPC] FWNMI is only used on pSeries

2007-09-19 15:25:34 +10:00

crash.c

[POWERPC] Clean out a bunch of duplicate includes

2007-08-17 11:01:51 +10:00

dma_64.c

Update arch/ to use sg helpers

2007-10-22 21:19:59 +02:00

entry_32.S

[POWERPC] Avoid unpaired stwcx. on some processors

2007-11-13 16:22:43 +11:00

entry_64.S

[POWERPC] Add 1TB workaround for PA6T

2007-10-17 22:30:09 +10:00

firmware.c

…

fpu.S

…

head_8xx.S

[POWERPC] 8xx: Work around CPU15 erratum.

2007-10-03 20:36:36 -05:00

head_32.S

[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

2007-10-11 13:36:52 -05:00

head_40x.S

[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

2007-10-11 13:36:52 -05:00

head_44x.S

[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

2007-10-11 13:36:52 -05:00

head_64.S

[POWERPC] Fix si_addr value on low level hash failures

2007-11-08 14:15:34 +11:00

head_booke.h

…

head_fsl_booke.S

[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

2007-10-11 13:36:52 -05:00

ibmebus.c

Update arch/ to use sg helpers

2007-10-22 21:19:59 +02:00

idle_6xx.S

…

idle_power4.S

…

idle.c

[POWERPC] Fix sysctl table check failure on PowerMac

2007-11-08 14:15:30 +11:00

init_task.c

…

io.c

…

iomap.c

[POWERPC] Add 64-bit resources support to pci_iomap

2007-09-20 07:36:52 -05:00

iommu.c

Update arch/ to use sg helpers

2007-10-22 21:19:59 +02:00

irq.c

Spelling fix: explicitly

2007-10-19 23:22:55 +02:00

isa-bridge.c

…

kprobes.c

kprobes: support kretprobe blacklist

2007-10-16 09:43:10 -07:00

l2cr_6xx.S

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

legacy_serial.c

[POWERPC] Add legacy serial support for OPB with flattened device tree

2007-10-12 14:05:18 +10:00

lparcfg.c

[POWERPC] ppc64: support CONFIG_DEBUG_PREEMPT

2007-10-03 11:48:44 +10:00

machine_kexec_32.c

…

machine_kexec_64.c

…

machine_kexec.c

Use extended crashkernel command line on ppc64

2007-10-19 11:53:51 -07:00

Makefile

[POWERPC] 8xx: Move softemu8xx.c from arch/ppc

2007-10-04 11:02:54 -05:00

misc_32.S

[POWERPC] 4xx: Deal with 44x virtually tagged icache

2007-11-01 07:15:30 -05:00

misc_64.S

…

misc.S

…

module_32.c

…

module_64.c

…

msi.c

…

nvram_64.c

[POWERPC] pseries: Eliminate global error_log_cnt variable

2007-08-17 11:01:52 +10:00

of_device.c

[POWERPC] Move of_device allocation into of_device.[ch]

2007-10-17 22:30:07 +10:00

of_platform.c

[POWERPC] Move of_device allocation into of_device.[ch]

2007-10-17 22:30:07 +10:00

paca.c

…

pci_32.c

[POWERPC] null_pci_ops: Use named structure member initializers

2007-08-17 11:01:53 +10:00

pci_64.c

[POWERPC] Fix pci domain detection

2007-10-03 11:48:44 +10:00

pci_dn.c

[POWERPC] Fix section mismatch in PCI code

2007-09-19 15:25:34 +10:00

pci-common.c

[POWERPC] Use alloc_maybe_bootmem() in pcibios_alloc_controller

2007-10-03 15:31:35 +10:00

pmc.c

…

ppc32.h

…

ppc_ksyms.c

[POWERPC] Fix build errors when BLOCK=n

2007-09-22 14:49:22 +10:00

proc_ppc64.c

…

process.c

sched: restore deterministic CPU accounting on powerpc

2007-11-09 22:39:38 +01:00

prom_init.c

[POWERPC] ] Fix memset size error

2007-11-08 14:15:33 +11:00

prom_parse.c

…

prom.c

[POWERPC] 4xx: Workaround for the 440EP(x)/GR(x) processors identical PVR issue.

2007-11-01 07:13:43 -05:00

ptrace32.c

[POWERPC] Add CHECK_FULL_REGS in several places in ptrace code

2007-10-03 11:48:43 +10:00

ptrace.c

Consolidate PTRACE_DETACH

2007-10-16 09:42:49 -07:00

rtas_flash.c

Slab API: remove useless ctor parameter and reorder parameters

2007-10-17 08:42:45 -07:00

rtas_pci.c

[POWERPC] rtas_pci_ops: Use named structure member initializers

2007-08-17 11:01:53 +10:00

rtas-proc.c

…

rtas-rtc.c

…

rtas.c

…

semaphore.c

…

setup_32.c

[POWERPC] Only call ppc_md.setup_arch() if it is provided

2007-10-11 20:39:36 +10:00

setup_64.c

[POWERPC] Fix cache line vs. block size confusion

2007-11-08 14:15:30 +11:00

setup-common.c

Convert cpu_sibling_map to be a per cpu variable

2007-10-16 09:42:50 -07:00

setup.h

…

signal_32.c

[POWERPC] Implement logging of unhandled signals

2007-10-12 14:05:18 +10:00

signal_64.c

[POWERPC] Implement logging of unhandled signals

2007-10-12 14:05:18 +10:00

signal.c

[POWERPC] Implement logging of unhandled signals

2007-10-12 14:05:18 +10:00

signal.h

…

smp-tbsync.c

…

smp.c

Convert cpu_sibling_map to be a per cpu variable

2007-10-16 09:42:50 -07:00

softemu8xx.c

[POWERPC] 8xx: Move softemu8xx.c from arch/ppc

2007-10-04 11:02:54 -05:00

suspend.c

…

swsusp_32.S

[POWERPC] Make altivec code in swsusp_32.S depend on CONFIG_ALTIVEC

2007-11-08 14:15:34 +11:00

swsusp_64.c

…

swsusp_asm64.S

…

swsusp.c

…

sys_ppc32.c

remove include/asm-*/ipc.h

2007-10-17 08:42:55 -07:00

syscalls.c

remove include/asm-*/ipc.h

2007-10-17 08:42:55 -07:00

sysfs.c

[POWERPC] Remove warning in arch/powerpc/kernel/sysfs.c

2007-09-14 01:33:22 +10:00

systbl.S

[POWERPC] Align the sys_call_table

2007-10-11 14:36:47 +10:00

tau_6xx.c

…

time.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched

2007-11-09 15:27:54 -08:00

traps.c

Use helpers to obtain task pid in printks (arch code)

2007-10-19 11:53:43 -07:00

udbg_16550.c

[POWERPC] 4xx: Implement udbg_getc() for 440

2007-09-19 21:13:17 -05:00

udbg.c

[POWERPC] Add early debug console for CPM serial ports.

2007-10-03 20:35:43 -05:00

vdso.c

[POWERPC] Disable vDSO support for ARCH=ppc where it's not implemented

2007-10-11 20:25:25 +10:00

vecemu.c

…

vector.S

…

vio.c

Driver core: change add_uevent_var to use a struct

2007-10-12 14:51:01 -07:00

vmlinux.lds.S

[POWERPC] Fix link errors for allyesconfig

2007-11-08 14:15:33 +11:00