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4a5cbf17c4
linux/arch/powerpc/kernel
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Benjamin Herrenschmidt 4a5cbf17c4 powerpc: Map more memory early on 601 processors 
The 32-bit kernel relies on some memory being mapped covering
the kernel text,data and bss at least, early during boot before
the full MMU setup is done. On 32-bit "classic" processors, this
is done using BAT registers.

On 601, the size of BATs is limited to 8M and we use 2 of them
for that initial mapping. This can become quite tight when enabling
features like lockdep, so let's use a 3rd one to bump that mapping
from 16M to 24M. We keep the 4th BAT free as it can be useful for
debugging early boot code to map things like serial ports.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-26 14:37:25 +10:00
..
vdso32 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
vdso64 powerpc/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
.gitignore powerpc: Ignore generated vmlinux.lds in git 2008-10-07 14:26:18 +11:00
align.c powerpc: Keep track of emulated instructions 2009-05-21 15:44:26 +10:00
asm-offsets.c Merge commit 'origin/master' into next 2009-06-12 16:53:38 +10:00
audit.c
btext.c powerpc: Use the common ascii hex helpers 2008-08-20 16:34:57 +10:00
cacheinfo.c powerpc/cacheinfo: Rename cache_dir per-cpu variable 2009-01-13 14:48:02 +11:00
cacheinfo.h powerpc: Rewrite sysfs processor cache info code 2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S powerpc: Enable additional BAT registers in setup_745x_specifics() 2009-06-15 21:45:31 -05:00
cpu_setup_44x.S AMCC PPC 460SX redwood SoC platform initial framework 2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUs 2009-06-15 21:45:30 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
cputable.c powerpc: Add 2.06 tlbie mnemonics 2009-05-21 15:44:21 +10:00
crash_dump.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
crash.c powerpc: Increase CRASH_HANDLER_MAX 2008-06-30 22:31:00 +10:00
dbell.c powerpc: Add support for using doorbells for SMP IPI 2009-02-23 15:53:03 +11:00
dma-iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
dma-swiotlb.c powerpc: Add support for swiotlb on 32-bit 2009-06-09 16:49:18 +10:00
dma.c powerpc: Add support for swiotlb on 32-bit 2009-06-09 16:49:18 +10:00
entry_32.S powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
entry_64.S Merge branch 'linus' into perfcounters/core-v2 2009-04-06 09:02:57 +02:00
exceptions-64s.S powerpc: Split exception handling out of head_64.S 2009-06-09 16:47:37 +10:00
firmware.c
fpu.S powerpc: Disable VSX or current process in giveup_fpu/altivec 2009-04-07 15:18:59 +10:00
ftrace.c Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 10:56:46 -07:00
head_8xx.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_32.S powerpc: Map more memory early on 601 processors 2009-06-26 14:37:25 +10:00
head_40x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_44x.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
head_64.S powerpc: Split exception handling out of head_64.S 2009-06-09 16:47:37 +10:00
head_booke.h powerpc: Add PTRACE_SINGLEBLOCK support 2009-06-09 13:29:25 +10:00
head_fsl_booke.S powerpc: convert to use __HEAD and HEAD_TEXT macros. 2009-04-26 09:20:38 -07:00
ibmebus.c powerpc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:38 +11:00
idle_6xx.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_e500.S powerpc: Fix for getting CPU number in power_save_ppc32_restore() 2008-09-03 20:53:47 +10:00
idle_power4.S
idle.c powerpc: ftrace, do not latency trace idle 2008-11-20 10:51:15 -08:00
init_task.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
io.c ftrace: support for PowerPC 2008-05-23 22:43:11 +02:00
iomap.c
iommu.c powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
irq.c Merge commit 'origin/master' into next 2009-06-12 16:53:38 +10:00
isa-bridge.c [POWERPC] Remove leftover printk in isa-bridge.c 2008-05-09 20:22:59 +10:00
kgdb.c kgdb, x86, arm, mips, powerpc: ignore user space single stepping 2008-09-26 10:36:41 -05:00
kprobes.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
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: Display processor virtualization resource allocs in lparcfg 2009-06-02 10:36:10 +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 powerpc/32: Setup OF properties for kdump 2008-12-23 15:13:29 +11:00
machine_kexec.c powerpc: Allow mem=x cmdline to work with 4G+ 2009-05-15 16:43:41 +10:00
Makefile Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 11:29:32 -07:00
misc_32.S powerpc/44x: Support 16K/64K base page sizes on 44x 2008-12-29 09:53:25 +11:00
misc_64.S powerpc: Move VMX and VSX asm code to vector.S 2009-06-09 16:46:25 +10:00
misc.S powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
module_32.c powerpc/ppc32: ftrace, dynamic ftrace to handle modules 2008-11-20 10:52:53 -08:00
module_64.c powerpc: Unify opcode definitions and support 2009-02-23 10:48:56 +11:00
module.c module: cleanup FIXME comments about trimming exception table entries. 2009-06-12 21:47:05 +09:30
mpc7450-pmu.c perf_counter: powerpc: Add processor back-end for MPC7450 family 2009-06-18 11:11:46 +02:00
msi.c powerpc/PCI: include pci.h in powerpc MSI implementation 2009-03-25 08:54:29 -07:00
nvram_64.c
of_device.c powerpc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-12-16 15:53:38 +11:00
of_platform.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
paca.c powerpc: Separate PACA fields for server CPUs 2009-06-09 16:47:38 +10:00
pci_32.c powerpc/pci: Remove redundant pcnet32 fixup 2009-05-21 15:44:24 +10:00
pci_64.c powerpc: Fix warning when printing a resource_size_t 2009-06-09 16:47:41 +10:00
pci_dn.c powerpc/pci: Move pseries code into pseries platform specific area 2009-05-21 15:44:24 +10:00
pci-common.c powerpc/pci: Fix annotation of pcibios_claim_one_bus 2009-06-02 11:09:12 +10:00
perf_counter.c perf_counter: powerpc: Make powerpc perf_counter code safe for 32-bit kernels 2009-06-18 11:11:46 +02:00
pmc.c [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
power4-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
power5-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
power5+-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
power6-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
power7-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
ppc32.h powerpc: Add VSX context save/restore, ptrace and signal support 2008-07-01 11:28:50 +10:00
ppc970-pmu.c perf_counter: powerpc: Change how processor-specific back-ends get selected 2009-06-18 11:11:45 +02:00
ppc_ksyms.c powerpc: Export cacheable_memzero as its now used in a driver 2009-01-08 16:25:17 +11:00
ppc_save_regs.S powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
proc_ppc64.c powerpc: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
process.c powerpc: Fix output from show_regs 2009-06-26 14:37:24 +10:00
prom_init_check.sh powerpc: Print linux_banner in prom_init 2009-03-11 17:11:33 +11:00
prom_init.c edac: cpc925 MC platform device setup 2009-06-18 13:03:57 -07:00
prom_parse.c powerpc: Fix of_node_put() exit path in of_irq_map_one() 2009-04-20 12:18:43 -06:00
prom.c powerpc: Shield code specific to 64-bit server processors 2009-06-09 16:47:38 +10:00
ptrace32.c powerpc: Fix ptrace compat wrapper for FPU register access 2009-04-07 15:19:00 +10:00
ptrace.c powerpc: Add PTRACE_SINGLEBLOCK support 2009-06-09 13:29:25 +10:00
reloc_64.S powerpc: Make the 64-bit kernel as a position-independent executable 2008-09-15 11:08:38 -07:00
rtas_flash.c proc 2/2: remove struct proc_dir_entry::owner 2009-03-31 01:14:44 +04:00
rtas_pci.c powerpc/pci: Clean up direct access to sysdata by RTAS 2009-05-21 15:44:23 +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/pseries: Fix partition migration hang under load 2009-02-23 15:53:04 +11:00
setup_32.c powerpc: Add support for swiotlb on 32-bit 2009-06-09 16:49:18 +10:00
setup_64.c powerpc: Fix warning in setup_64.c when CONFIG_RELOCATABLE=y 2009-06-15 13:26:21 +10:00
setup-common.c powerpc: Remove duplicated #include's 2009-04-07 15:18:58 +10:00
setup.h
signal_32.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal_64.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.c powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
signal.h powerpc: Sanitize stack pointer in signal handling code 2009-03-27 16:58:24 +11:00
smp-tbsync.c powerpc: Silence software timebase sync 2008-11-05 22:08:28 +11:00
smp.c powerpc/pmac: Fix issues with PowerMac "PowerSurge" SMP 2009-06-26 14:37:24 +10:00
softemu8xx.c Remove asm/a.out.h files for all architectures without a.out support. 2008-09-06 19:30:24 +01:00
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/mm: Introduce MMU features 2008-12-21 14:21:16 +11:00
swsusp_64.c
swsusp_asm64.S powerpc: Fix 64-bit hibernation with 64k pages 2008-10-07 14:26:20 +11:00
swsusp.c powerpc/mm: Split mmu_context handling 2008-12-21 14:21:15 +11:00
sys_ppc32.c compat: generic compat get/settimeofday 2008-10-16 11:21:33 -07:00
syscalls.c powerpc/mm: Add Strong Access Ordering support 2008-07-09 16:30:45 +10:00
sysfs.c powerpc: Fix bugs introduced by sysfs changes 2009-03-27 16:58:24 +11:00
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 [POWERPC] Align the sys_call_table 2007-10-11 14:36:47 +10:00
tau_6xx.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
time.c perf_counter: powerpc: Enable use of software counters on 32-bit powerpc 2009-06-18 11:11:44 +02:00
traps.c powerpc: Add PTRACE_SINGLEBLOCK support 2009-06-09 13:29:25 +10:00
udbg_16550.c powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF 2009-03-11 17:11:34 +11:00
udbg.c powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF 2009-03-11 17:11:34 +11:00
vdso.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-12-28 16:54:33 -08:00
vecemu.c
vector.S powerpc: Move VMX and VSX asm code to vector.S 2009-06-09 16:46:25 +10:00
vio.c workqueue: add to_delayed_work() helper function 2009-04-02 19:04:50 -07:00
vmlinux.lds.S powerpc: Explicit alignment for .data.cacheline_aligned 2009-05-18 15:19:05 +10:00