Kumar Gala 37dd2badcf [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) ... Added support to allow an 85xx kernel to be run from a non-zero physical address (useful for cooperative asymmetric multiprocessing situations and kdump). The support can be configured at compile time by setting CONFIG_PAGE_OFFSET, CONFIG_KERNEL_START, and CONFIG_PHYSICAL_START as desired. Alternatively, the kernel build can set CONFIG_RELOCATABLE. Setting this config option causes the kernel to determine at runtime the physical addresses of CONFIG_PAGE_OFFSET and CONFIG_KERNEL_START. If CONFIG_RELOCATABLE is set, then CONFIG_PHYSICAL_START has no meaning. However, CONFIG_PHYSICAL_START will always be used to set the LOAD program header physical address field in the resulting ELF image. Currently we are limited to running at a physical address that is a multiple of 256M. This is due to how we map TLBs to cover lowmem. This should be fixed to allow 64M or maybe even 16M alignment in the future. It is considered an error to try and run a kernel at a non-aligned physical address. All the magic for this support is accomplished by proper initialization of the kernel memory subsystem and use of ARCH_PFN_OFFSET. The use of ARCH_PFN_OFFSET only affects normal memory and not IO mappings. ioremap uses map_page and isn't affected by ARCH_PFN_OFFSET. /dev/mem continues to allow access to any physical address in the system regardless of how CONFIG_PHYSICAL_START is set. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>		2008-04-24 20:58:01 +10:00
..
vdso32
vdso64
align.c
asm-offsets.c	[POWERPC] iSeries: Use alternate paca structure for booting	2008-04-15 21:21:25 +10:00
audit.c
btext.c	[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.	2008-02-13 16:56:49 -08:00
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] 4xx: Add AMCC 460EX/460GT support to cputable.c & cpu_setup_44x.S	2008-03-26 07:19:16 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c	[POWERPC] 4xx: Add AMCC 460EX/460GT support to cputable.c & cpu_setup_44x.S	2008-03-26 07:19:16 -05:00
crash.c	[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.	2008-02-13 16:56:49 -08:00
crash_dump.c	[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.	2008-02-13 16:56:49 -08:00
dma_64.c	iommu sg: powerpc: convert iommu to use the IOMMU helper	2008-02-05 09:44:11 -08:00
entry_32.S	[POWERPC] Make Book-E debug handling SMP safe	2008-04-17 01:01:40 -05:00
entry_64.S	[POWERPC] irqtrace support for 64-bit powerpc	2008-04-18 15:38:47 +10:00
firmware.c
fpu.S
head_8xx.S	[POWERPC] 8xx: fix swap	2008-03-07 08:42:28 -06:00
head_32.S	[POWERPC] Move stackframe definitions to common header	2008-04-18 15:37:18 +10:00
head_40x.S
head_44x.S	[POWERPC] Rework Book-E debug exception handling	2008-04-17 01:01:36 -05:00
head_64.S	[POWERPC] irqtrace support for 64-bit powerpc	2008-04-18 15:38:47 +10:00
head_booke.h	[POWERPC] Rework Book-E debug exception handling	2008-04-17 01:01:36 -05:00
head_fsl_booke.S	[POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero)	2008-04-24 20:58:01 +10:00
ibmebus.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
idle.c
idle_6xx.S
idle_power4.S
init_task.c
io.c
iomap.c
iommu.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
irq.c	[POWERPC] irqtrace support for 64-bit powerpc	2008-04-18 15:38:47 +10:00
isa-bridge.c	[POWERPC] Replace logical-AND by bit-AND in pci_process_ISA_OF_ranges()	2008-04-07 10:03:02 +10:00
kprobes.c	[POWERPC] Kill sparse warnings in kprobes	2008-02-20 13:33:37 +11:00
l2cr_6xx.S
legacy_serial.c	[POWERPC] Fix legacy serial search for opb bus ports	2008-02-06 16:30:00 +11:00
lparcfg.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
machine_kexec.c	[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.	2008-02-13 16:56:49 -08:00
machine_kexec_32.c
machine_kexec_64.c
Makefile	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-04-21 15:50:49 -07:00
misc.S	[POWERPC] Make setjmp/longjmp code usable outside of xmon	2008-01-25 22:52:50 +11:00
misc_32.S	[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernels	2008-03-13 09:39:55 +11:00
misc_64.S
module_32.c	[POWERPC] Optimize counting distinct entries in the relocation sections	2007-12-21 15:05:58 +11:00
module_64.c	[POWERPC] Optimize counting distinct entries in the relocation sections	2007-12-21 15:05:58 +11:00
msi.c
nvram_64.c
of_device.c	[POWERPC] Use <linux/of_{platform, device}.h> and not <asm/...> variants.	2008-01-17 14:58:57 +11:00
of_platform.c	[POWERPC] arch/powerpc/kernel: Use for_each_child_of_node	2008-01-17 14:57:20 +11:00
paca.c	[POWERPC] Initialize paca->current earlier	2008-04-17 07:46:10 +10:00
pci-common.c	PCI: powerpc: use generic pci_enable_resources()	2008-04-20 21:47:05 -07:00
pci_32.c	[POWERPC] Remove update_bridge_resource	2008-01-23 19:32:30 -06:00
pci_64.c	[POWERPC] Always hookup PHB IO resource even when empty	2008-01-25 22:52:53 +11:00
pci_dn.c	[POWERPC] iSeries: eliminate pci_dn bussubno	2008-01-17 14:57:05 +11:00
pmc.c	[POWERPC] Made FSL Book-E PMC support more generic	2008-02-05 23:34:14 -06:00
ppc32.h	Revert "[POWERPC] Add compat handler for PTRACE_GETSIGINFO"	2008-04-24 14:05:15 +10:00
ppc_ksyms.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-04-21 15:50:49 -07:00
proc_ppc64.c
process.c	[POWERPC] Fix kernel stack allocation alignment	2008-04-24 20:57:33 +10:00
prom.c	[POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero)	2008-04-24 20:58:01 +10:00
prom_init.c	[POWERPC] Efika: Really, don't pretend to be CHRP	2008-04-17 07:46:12 +10:00
prom_parse.c
ptrace.c	[POWERPC] user_regset PTRACE_SETREGS regression fix	2008-03-20 10:10:56 +11:00
ptrace32.c	Revert "[POWERPC] Add compat handler for PTRACE_GETSIGINFO"	2008-04-24 14:05:15 +10:00
rio.c	[POWERPC] Move RapidIO support code from arch/ppc	2008-01-23 19:35:15 -06:00
rtas-proc.c
rtas-rtc.c
rtas.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-04-21 15:50:49 -07:00
rtas_flash.c	Merge branch 'linux-2.6'	2008-04-14 21:11:02 +10:00
rtas_pci.c	[POWERPC] Convert pci and eeh code to of_device_is_available	2008-04-07 13:49:25 +10:00
setup-common.c	[POWERPC] Add 'model: ...' line to common show_cpuinfo()	2008-03-26 08:44:04 +11:00
setup.h
setup_32.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-04-21 15:50:49 -07:00
setup_64.c	[POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero)	2008-04-24 20:58:01 +10:00
signal.c
signal.h
signal_32.c	[POWERPC] Define copy_siginfo_from_user32	2008-04-20 13:03:36 +10:00
signal_64.c
smp-tbsync.c
smp.c	[POWERPC] Make smp_send_stop() handle panic and xmon reboot	2008-01-25 22:52:50 +11:00
softemu8xx.c
stacktrace.c	[POWERPC] Stacktrace support for lockdep	2008-04-18 15:37:19 +10:00
suspend.c
swsusp.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
sys_ppc32.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	2008-04-21 15:50:49 -07:00
syscalls.c	arch: Remove unnecessary inclusions of asm/semaphore.h	2008-04-18 22:14:49 -04:00
sysfs.c	remove __attribute_used__	2008-01-28 23:21:18 +01:00
systbl.S
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
tau_6xx.c
time.c	taskstats scaled time cleanup	2008-02-06 10:41:00 -08:00
traps.c	[POWERPC] Fix compilation for CONFIG_DEBUGGER=n and CONFIG_KEXEC=y	2008-02-07 11:40:18 +11:00
udbg.c	[POWERPC] 4xx: Add early udbg support for 40x processors	2007-12-23 13:13:03 -06:00
udbg_16550.c	[POWERPC] 4xx: Add early udbg support for 40x processors	2007-12-23 13:13:03 -06:00
vdso.c	Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/lmb-2.6	2008-02-26 21:08:45 +11:00
vecemu.c
vector.S
vio.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
vmlinux.lds.S	[POWERPC] Update linker script to properly set physical addresses	2008-04-17 07:46:14 +10:00