Michael Ellerman 01f3880dd8 powerpc: Streamline ret_from_except_lite for non-iSeries platforms ...

There is a small passage of code in ret_from_except_lite which is
only required on iSeries.  For a multi-platform kernel on non-iSeries
machines this means we end up executing ~15 nops in ret_from_except_lite.

It would be nicer if non-iSeries could skip the code entirely, and on
iSeries we can jump out of line to execute the code.

I have no performance numbers to justify this, other than the assertion
that executing 15 nops takes longer than executing 0.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2008-08-20 16:34:57 +10:00

..

vdso32

powerpc: Fixup lwsync at runtime

2008-07-03 16:58:10 +10:00

vdso64

powerpc: Fixup lwsync at runtime

2008-07-03 16:58:10 +10:00

align.c

powerpc: Add VSX load/store alignment exception handler

2008-07-15 12:29:25 +10:00

asm-offsets.c

powerpc: Introduce VSX thread_struct and CONFIG_VSX

2008-07-01 11:28:46 +10:00

audit.c

…

btext.c

[POWERPC] Remove duplicate #include

2008-05-09 20:22:58 +10:00

clock.c

…

compat_audit.c

…

cpu_setup_6xx.S

[POWERPC] ppc32: Fix errata for 603 CPUs

2008-04-21 15:00:32 -05:00

cpu_setup_44x.S

powerpc: Remove use of CONFIG_PPC_MERGE

2008-08-04 13:18:17 +10:00

cpu_setup_pa6t.S

…

cpu_setup_ppc970.S

…

cputable.c

powerpc: Fix boot problem due to AT_BASE_PLATFORM change

2008-07-26 09:02:43 +10:00

crash_dump.c

powerpc: Fix /dev/oldmem interface for kdump

2008-08-20 09:50:21 +10:00

crash.c

powerpc: Increase CRASH_HANDLER_MAX

2008-06-30 22:31:00 +10:00

dma_64.c

powerpc: move device_to_mask() to dma-mapping.h

2008-07-09 16:30:44 +10:00

entry_32.S

powerpc: Add TIF_NOTIFY_RESUME support for tracehook

2008-07-28 16:30:50 +10:00

entry_64.S

powerpc: Streamline ret_from_except_lite for non-iSeries platforms

2008-08-20 16:34:57 +10:00

firmware.c

…

fpu.S

powerpc: Add VSX context save/restore, ptrace and signal support

2008-07-01 11:28:50 +10:00

ftrace.c

ftrace: store mcount address in rec->ip

2008-06-23 22:10:56 +02:00

head_8xx.S

[POWERPC] 8xx: fix swap

2008-03-07 08:42:28 -06:00

head_32.S

powerpc: Fix TLB invalidation on boot on 32-bit

2008-08-18 14:22:34 +10:00

head_40x.S

[POWERPC] 40x/Book-E: Save/restore volatile exception registers

2008-06-02 14:56:35 -05:00

head_44x.S

powerpc: rework 4xx PTE access and TLB miss

2008-07-09 13:36:17 -04:00

head_64.S

powerpc: Don't spin on sync instruction at boot time

2008-07-15 12:29:28 +10:00

head_booke.h

powerpc: rework 4xx PTE access and TLB miss

2008-07-09 13:36:17 -04:00

head_fsl_booke.S

powerpc/fsl: Minor TLBSYNC cleanup for FSL Book-E

2008-07-16 17:57:52 -05:00

ibmebus.c

powerpc/ibmebus: Restore "name" sysfs attribute on ibmebus devices

2008-08-20 09:50:21 +10:00

idle_6xx.S

powerpc/85xx: add DOZE/NAP support for e500 core

2008-06-26 01:48:56 -05:00

idle_e500.S

powerpc/e500mc: flush L2 on NAP for e500mc

2008-06-26 01:49:03 -05:00

idle_power4.S

…

idle.c

nohz: prevent tick stop outside of the idle loop

2008-07-18 18:10:28 +02:00

init_task.c

[PATCH] take init_files to fs/file.c

2008-05-16 17:22:20 -04:00

io.c

ftrace: support for PowerPC

2008-05-23 22:43:11 +02:00

iomap.c

…

iommu.c

powerpc/pseries: iommu enablement for CMO

2008-07-25 15:44:43 +10:00

irq.c

powerpc: Remove use of CONFIG_PPC_MERGE

2008-08-04 13:18:17 +10:00

isa-bridge.c

[POWERPC] Remove leftover printk in isa-bridge.c

2008-05-09 20:22:59 +10:00

kgdb.c

kgdb, powerpc: arch specific powerpc kgdb support

2008-07-23 11:30:15 -05:00

kprobes.c

kprobes: improve kretprobe scalability with hashed locking

2008-07-25 10:53:30 -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/powermac: Fixup default serial port device for pmac_zilog

2008-07-28 16:30:53 +10:00

lparcfg.c

powerpc: Add CMO enabled flag and paging space data to lparcfg

2008-08-18 14:22:35 +10:00

machine_kexec_32.c

kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE

2008-08-15 08:35:42 -07:00

machine_kexec_64.c

Merge commit 'origin/master'

2008-07-16 11:07:59 +10:00

machine_kexec.c

kexec jump

2008-07-26 12:00:04 -07:00

Makefile

powerpc: Remove use of CONFIG_PPC_MERGE

2008-08-04 13:18:17 +10:00

misc_32.S

powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion

2008-08-18 14:22:35 +10:00

misc_64.S

powerpc: fix giveup_vsx to save registers correctly

2008-07-15 12:29:23 +10:00

misc.S

powerpc: Add cputable entry for POWER7

2008-06-30 22:31:11 +10:00

module_32.c

powerpc: Move common module code into its own file

2008-07-01 11:28:05 +10:00

module_64.c

powerpc: Add PPC_NOP_INSTR, a hash define for the preferred nop instruction

2008-07-01 11:28:23 +10:00

module.c

powerpc: Remove dead module_find_bug code

2008-08-18 14:22:35 +10:00

msi.c

[POWERPC] Fix sparse warnings in arch/powerpc/kernel

2008-05-14 22:31:59 +10:00

nvram_64.c

…

of_device.c

[POWERPC] Move of_device_get_modalias to drivers/of

2008-05-16 23:22:28 +10:00

of_platform.c

powerpc: Add missing reference to coherent_dma_mask

2008-07-08 21:06:35 -07:00

paca.c

[POWERPC] Raise the upper limit of NR_CPUS and move the pacas into the BSS

2008-04-24 20:58:04 +10:00

pci_32.c

[POWERPC] Remove update_bridge_resource

2008-01-23 19:32:30 -06:00

pci_64.c

[POWERPC] Use dev_set_name in pci_64.c

2008-06-09 11:32:40 +10:00

pci_dn.c

[POWERPC] iSeries: eliminate pci_dn bussubno

2008-01-17 14:57:05 +11:00

pci-common.c

powerpc/pci: Don't keep ISA memory hole resources in the tree

2008-08-11 10:09:56 +10:00

pmc.c

[POWERPC] Made FSL Book-E PMC support more generic

2008-02-05 23:34:14 -06:00

ppc32.h

powerpc: Add VSX context save/restore, ptrace and signal support

2008-07-01 11:28:50 +10:00

ppc_ksyms.c

Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build

2008-07-15 15:44:51 +10:00

proc_ppc64.c

powerpc: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

process.c

powerpc: Remove use of CONFIG_PPC_MERGE

2008-08-04 13:18:17 +10:00

prom_init_check.sh

[POWERPC] Fix -Os kernel builds with newer gcc versions

2008-06-16 15:00:54 +10:00

prom_init.c

powerpc: kill useless SMT code in prom_hold_cpus

2008-07-28 16:30:48 +10:00

prom_parse.c

powerpc: Fix OF parsing of 64 bits PCI addresses

2008-07-22 10:39:34 +10:00

prom.c

powerpc: Add VSX CPU feature

2008-07-01 11:28:47 +10:00

ptrace32.c

powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes

2008-07-30 15:26:54 +10:00

ptrace.c

powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs

2008-07-30 15:26:54 +10:00

rtas_flash.c

SL*B: drop kmem cache argument from constructor

2008-07-26 12:00:07 -07:00

rtas_pci.c

[POWERPC] Fix sparse warnings in arch/powerpc/kernel

2008-05-14 22:31:59 +10:00

rtas-proc.c

[POWERPC] Fix sparse warnings in arch/powerpc/kernel

2008-05-14 22:31:59 +10:00

rtas-rtc.c

…

rtas.c

powerpc: Zero fill the return values of rtas argument buffer

2008-08-11 10:09:56 +10:00

setup_32.c

kgdb, powerpc: arch specific powerpc kgdb support

2008-07-23 11:30:15 -05:00

setup_64.c

powerpc: Update cpu_sibling_maps dynamically

2008-07-28 16:30:49 +10:00

setup-common.c

powerpc: Update cpu_sibling_maps dynamically

2008-07-28 16:30:49 +10:00

setup.h

…

signal_32.c

powerpc: fix giveup_vsx to save registers correctly

2008-07-15 12:29:23 +10:00

signal_64.c

powerpc: fix giveup_vsx to save registers correctly

2008-07-15 12:29:23 +10:00

signal.c

powerpc: Add TIF_NOTIFY_RESUME support for tracehook

2008-07-28 16:30:50 +10:00

signal.h

powerpc: Clean up copy_to/from_user for vsx and fpr

2008-07-03 16:58:11 +10:00

smp-tbsync.c

…

smp.c

powerpc: Make core id information available to userspace

2008-07-28 16:30:52 +10:00

softemu8xx.c

powerpc: Add macros to access floating point registers in thread_struct.

2008-07-01 11:28:43 +10:00

stacktrace.c

powerpc: Removed duplicated include in stacktrace.c

2008-07-28 16:30:47 +10:00

suspend.c

PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures

2008-07-24 10:47:21 -07:00

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

powerpc: Use generic compat_sys_old_readdir

2008-08-18 14:22:35 +10:00

syscalls.c

powerpc/mm: Add Strong Access Ordering support

2008-07-09 16:30:45 +10:00

sysfs.c

powerpc: Show processor cache information in sysfs

2008-07-28 16:30:52 +10:00

systbl_chk.c

[POWERPC] Fix a couple of copyright symbols

2008-01-25 22:52:50 +11:00

systbl_chk.sh

[POWERPC] Fix a couple of copyright symbols

2008-01-25 22:52:50 +11:00

systbl.S

…

tau_6xx.c

on_each_cpu(): kill unused 'retry' parameter

2008-06-26 11:24:38 +02:00

time.c

Merge commit 'origin/master'

2008-07-16 11:07:59 +10:00

traps.c

powerpc: BookE hardware watchpoint support

2008-07-25 15:44:39 +10:00

udbg_16550.c

[POWERPC] 4xx: Add early udbg support for 40x processors

2007-12-23 13:13:03 -06:00

udbg.c

[POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot

2008-04-24 21:08:11 +10:00

vdso.c

powerpc: Remove use of CONFIG_PPC_MERGE

2008-08-04 13:18:17 +10:00

vecemu.c

…

vector.S

…

vio.c

powerpc: Fix vio_bus_probe oops on probe error

2008-08-20 09:50:22 +10:00

vmlinux.lds.S

powerpc: Fix compile error with binutils 2.15

2008-07-25 15:44:40 +10:00