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cec08e7a94
android_kernel_xiaomi_sm8350/include/asm-powerpc
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Benjamin Herrenschmidt cec08e7a94 [POWERPC] vmemmap fixes to use smaller pages 
This changes vmemmap to use a different region (region 0xf) of the
address space, and to configure the page size of that region
dynamically at boot.

The problem with the current approach of always using 16M pages is that
it's not well suited to machines that have small amounts of memory such
as small partitions on pseries, or PS3's.

In fact, on the PS3, failure to allocate the 16M page backing vmmemmap
tends to prevent hotplugging the HV's "additional" memory, thus limiting
the available memory even more, from my experience down to something
like 80M total, which makes it really not very useable.

The logic used by my match to choose the vmemmap page size is:

 - If 16M pages are available and there's 1G or more RAM at boot,
   use that size.
 - Else if 64K pages are available, use that
 - Else use 4K pages

I've tested on a POWER6 (16M pages) and on an iSeries POWER3 (4K pages)
and it seems to work fine.

Note that I intend to change the way we organize the kernel regions &
SLBs so the actual region will change from 0xf back to something else at
one point, as I simplify the SLB miss handler, but that will be for a
later patch.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-15 20:49:25 +10:00
..
iseries [POWERPC] iSeries: Localise and constify some iSeries data 2008-04-15 21:21:25 +10:00
8xx_immap.h [POWERPC] include/asm-powerpc/: Spelling fixes 2007-12-20 16:17:44 +11:00
8253pit.h
a.out.h aout: move STACK_TOP[_MAX] to asm/processor.h 2008-02-08 09:22:29 -08:00
abs_addr.h [LIB]: Make PowerPC LMB code generic so sparc64 can use it too. 2008-02-13 16:56:49 -08:00
agp.h x86: remove flush_agp_mappings() 2008-01-30 13:34:07 +01:00
asm-compat.h
atomic.h [POWERPC] Implement atomic{, 64}_{read, write}() without volatile 2007-08-17 11:01:58 +10:00
auxvec.h
backlight.h
bitops.h generic: implement __fls on all 64-bit archs 2008-04-26 19:21:16 +02:00
bootx.h
btext.h
bug.h Fix WARN_ON() on bitfield ops 2007-07-31 21:12:07 -07:00
bugs.h
byteorder.h
cache.h
cacheflush.h
cell-pmu.h
cell-regs.h [POWERPC] cell: Add Cell memory controller register defs and expose it 2007-10-09 21:01:56 +10:00
checksum.h
clk_interface.h [POWERPC] clk.h interface for platforms 2007-10-03 09:11:56 +10:00
compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
cpm1.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cpm2.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cpm.h [POWERPC] CPM: Move opcodes common to CPM1 and CPM2 to include/asm-powerpc/cpm.h 2008-04-17 01:01:37 -05:00
cputable.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
cputhreads.h [POWERPC] Fix thinko in cpu_thread_mask_to_cores() 2008-02-26 22:17:03 +11:00
cputime.h taskstats scaled time cleanup 2008-02-06 10:41:00 -08:00
current.h
dbdma.h
dcr-mmio.h Use dcr_host_t.base in dcr_unmap() 2007-10-15 14:29:49 -04:00
dcr-native.h [POWERPC] 4xx: Add dcri_clrset() for locked read/modify/write functionality 2008-03-26 07:20:38 -05:00
dcr-regs.h [POWERPC] 4xx: Add PPC4xx L2-cache support (440GX) 2008-03-26 07:27:54 -05:00
dcr.h
delay.h
device.h
div64.h
dma-mapping.h [POWERPC] Add set_dma_ops() to match get_dma_ops() 2008-01-31 12:11:09 +11:00
dma.h scheduled OSS driver removal 2008-02-06 10:41:02 -08:00
edac.h
eeh_event.h
eeh.h
elf.h [POWERPC] Switch to generic compat_binfmt_elf code 2008-02-07 20:40:18 +11:00
emergency-restart.h
errno.h
exception.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
fb.h fbdev: detect primary display device 2007-07-17 10:23:11 -07:00
fcntl.h
firmware.h [POWERPC] celleb: Add support for native CBE 2007-12-11 13:34:40 +11:00
fixmap.h [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
floppy.h cleanup floppy.h 2007-10-17 08:42:55 -07:00
fs_pd.h [POWERPC] 85xx: Killed <asm/mpc85xx.h> 2007-10-11 09:14:31 -05:00
fsl_lbc.h [POWERPC] fsl_lbc: implement few UPM routines 2008-04-17 01:01:38 -05:00
futex.h asm-*/futex.h should include linux/uaccess.h 2008-04-30 08:29:52 -07:00
gpio.h [POWERPC] Implement support for the GPIO LIB API 2008-04-17 07:46:11 +10:00
grackle.h
hardirq.h
heathrow.h
highmem.h [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
hugetlb.h hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
hvcall.h
hvconsole.h
hvcserver.h
hw_irq.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
hydra.h [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need 2007-08-22 22:43:29 -05:00
i8259.h
ibmebus.h [POWERPC] ibmebus: Move to of_device and of_platform_driver, match eHCA and eHEA drivers 2007-10-17 22:30:08 +10:00
ide.h ide: remove ide_init_default_irq() macro 2008-04-18 00:46:35 +02:00
immap_86xx.h [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h 2007-12-11 13:57:18 -06:00
immap_cpm2.h [POWERPC] cpm2: Infrastructure code cleanup. 2007-10-04 11:02:04 -05:00
immap_qe.h [POWERPC] QE: immap_qe.h should include asm/io.h 2008-04-17 01:01:39 -05:00
io-defs.h [POWERPC] cell: Generalize io-workarounds code 2008-04-24 21:08:12 +10:00
io.h [POWERPC] devres: Add devm_ioremap_prot() 2008-05-05 16:47:14 +10:00
ioctl.h
ioctls.h
iommu.h iommu sg: powerpc: convert iommu to use the IOMMU helper 2008-02-05 09:44:11 -08:00
ipcbuf.h
ipic.h [POWERPC] ipic: add new interrupts introduced by new chip 2007-12-11 13:57:18 -06:00
irq_regs.h
irq.h proper __do_softirq() prototype 2008-04-29 08:06:02 -07:00
irqflags.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
Kbuild [POWERPC] Move a.out.h to header-y since it doesn't check __KERNEL__ 2008-03-26 08:44:07 +11:00
kdebug.h x86: optimize page faults like all other achitectures and kill notifier cruft 2007-10-16 09:42:50 -07:00
kdump.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
kexec.h [POWERPC] kdump shutdown hook support 2008-01-25 22:52:50 +11:00
keylargo.h
kgdb.h [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need 2007-08-22 22:43:29 -05:00
kmap_types.h
kprobes.h Kprobes: indicate kretprobe support in Kconfig 2008-03-04 16:35:11 -08:00
kvm_asm.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
kvm_host.h KVM: ppc: Handle guest idle by emulating MSR[WE] writes 2008-05-04 14:44:44 +03:00
kvm_para.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
kvm_ppc.h KVM: ppc: Handle guest idle by emulating MSR[WE] writes 2008-05-04 14:44:44 +03:00
kvm.h KVM: ppc: PowerPC 440 KVM implementation 2008-04-27 18:21:39 +03:00
libata-portmap.h
linkage.h
lmb.h [POWERPC] Use lowmem_end_addr to limit lmb allocations on ppc32 2008-04-17 07:46:13 +10:00
local.h
lppaca.h
lv1call.h
machdep.h [POWERPC] Remove unused machine call outs 2008-04-17 10:01:00 +10:00
macio.h [POWERPC] replace asm/of_device.h with linux/of_device.h in macio.h 2008-04-15 21:21:26 +10:00
mc146818rtc.h
mediabay.h ide: rework PowerMac media-bay support (take 2) 2008-04-18 00:46:23 +02:00
mman.h
mmu_context.h remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
mmu-8xx.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-40x.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-44x.h ppc: Export tlb_44x_hwater for KVM 2008-04-27 18:21:37 +03:00
mmu-fsl-booke.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-hash32.h [POWERPC] Move phys_addr_t definition into asm/types.h 2008-04-17 07:46:14 +10:00
mmu-hash64.h [POWERPC] vmemmap fixes to use smaller pages 2008-05-15 20:49:25 +10:00
mmu.h [POWERPC] 40x MMU 2007-08-20 07:28:48 -05:00
mmzone.h
module.h
mpc8xx.h [POWERPC] 8xx: Get rid of conditional includes of board specific setup 2008-01-28 08:31:04 -06:00
mpc52xx_psc.h [POWERPC] mpc512x: Add MPC512x PSC support to MPC52xx psc driver 2008-02-06 14:05:40 -07:00
mpc52xx.h [POWERPC] Add common clock setting routine mpc52xx_psc_set_clkdiv() 2008-01-26 15:32:18 -07:00
mpc86xx.h
mpc512x.h [POWERPC] mpc512x: Basic platform support 2008-02-06 14:03:10 -07:00
mpc8260.h [POWERPC] 82xx: Embedded Planet EP8248E support 2008-01-23 19:34:43 -06:00
mpic.h [POWERPC] pasemi: Distribute interrupts evenly across cpus 2007-12-28 09:22:25 -06:00
msgbuf.h
mutex.h
namei.h
nvram.h include/asm-powerpc/nvram.h needs list.h 2008-02-05 09:44:08 -08:00
of_device.h [POWERPC] Move of_device allocation into of_device.[ch] 2007-10-17 22:30:07 +10:00
of_platform.h [POWERPC] Enable RTC for Ebony and Walnut (v2) 2008-01-25 07:07:26 -06:00
ohare.h
oprofile_impl.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
paca.h [POWERPC] Raise the upper limit of NR_CPUS and move the pacas into the BSS 2008-04-24 20:58:04 +10:00
page_32.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
page_64.h hugetlbfs: architecture header cleanup 2008-04-28 08:58:25 -07:00
page.h [POWERPC] 85xx: Add support for relocatable kernel (and booting at non-zero) 2008-04-24 20:58:01 +10:00
param.h
parport.h
pasemi_dma.h pasemi_mac: jumbo frame support 2008-03-05 16:34:39 -06:00
pci-bridge.h [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const 2008-04-18 15:37:14 +10:00
pci.h [POWERPC] Merge PCI resource allocation & assignment 2007-12-20 16:18:09 +11:00
percpu.h percpu: fix DEBUG_PREEMPT per_cpu checking 2008-02-23 12:09:28 -08:00
pgalloc-32.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgalloc-64.h CONFIG_HIGHPTE vs. sub-page page tables. 2008-02-08 09:22:42 -08:00
pgalloc.h
pgtable-4k.h [POWERPC] Size swapper_pg_dir correctly 2007-09-19 15:25:34 +10:00
pgtable-64k.h [POWERPC] Provide a way to protect 4k subpages when using 64k pages 2008-01-24 10:06:01 +11:00
pgtable-ppc32.h [POWERPC] 4xx: Fix problem with new TLB storage attibute fields on 440x6 core 2008-05-06 10:36:20 -05:00
pgtable-ppc64.h [POWERPC] vmemmap fixes to use smaller pages 2008-05-15 20:49:25 +10:00
pgtable.h
phyp_dump.h [POWERPC] pseries/phyp dump: Reserve a variable amount of space at boot 2008-04-17 07:46:14 +10:00
pmac_feature.h [POWERPC] Disable G5 NAP mode during SMU commands on U3 2008-02-08 19:52:35 +11:00
pmac_low_i2c.h
pmac_pfunc.h
pmc.h
pmi.h [POWERPC] remove include of asm/of_device.h from pmi.h 2008-04-15 21:21:25 +10:00
poll.h
posix_types.h asm-*/posix_types.h: scrub __GLIBC__ 2008-02-08 09:22:34 -08:00
ppc4xx.h [POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c 2008-04-02 20:44:56 -05:00
ppc_asm.h [POWERPC] Fix modpost warnings from head*.S on ppc32 2007-09-14 08:53:36 -05:00
ppc-pci.h [POWERPC] iSeries: Call iSeries_pcibios_init from setup_arch 2007-12-11 13:42:32 +11:00
processor.h [POWERPC] Add IRQSTACKS support on ppc32 2008-04-29 15:57:34 +10:00
prom.h [POWERPC] Add of_translate_dma_address 2007-12-11 15:43:35 +11:00
ps3.h [POWERPC] PS3: Make ps3_virq_setup and ps3_virq_destroy static 2008-05-02 15:00:44 +10:00
ps3av.h ps3: use symbolic names for video modes 2008-02-06 10:41:17 -08:00
ps3fb.h
ps3stor.h
pSeries_reconfig.h
ptrace.h [POWERPC] Move stackframe definitions to common header 2008-04-18 15:37:18 +10:00
qe_ic.h [POWERPC] QEIC: Implement pluggable handlers, fix MPIC cascading 2007-10-08 08:38:57 -05:00
qe.h [POWERPC] QE: export qe_get_brg_clk() 2008-04-17 01:01:39 -05:00
reg_8xx.h
reg_booke.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
reg_fsl_emb.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
reg.h [POWERPC] move celleb DABRX definitions 2008-03-03 08:03:14 +01:00
resource.h
rheap.h
rio.h [RAPIDIO] Move include/asm-ppc/rio.h to asm-powerpc 2008-04-29 19:40:27 +10:00
rtas.h Revert "[POWERPC] Fix RTAS os-term usage on kernel panic" 2007-12-03 09:39:45 +11:00
rtc.h
rwsem.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
scatterlist.h Add CONFIG_DEBUG_SG sg validation 2007-10-22 21:20:03 +02:00
seccomp.h
sections.h
semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
serial.h
setjmp.h [POWERPC] Make setjmp/longjmp code usable outside of xmon 2008-01-25 22:52:50 +11:00
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
smu.h [POWERPC] include/asm-powerpc/: Spelling fixes 2007-12-20 16:17:44 +11:00
socket.h [NET]: Introducing socket mark socket option. 2008-01-31 19:27:19 -08:00
sockios.h
sparsemem.h [POWERPC] Add error return from htab_remove_mapping() 2008-04-01 20:43:08 +11:00
spinlock_types.h
spinlock.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
spu_csa.h [POWERPC] spufs: fix concurrent delivery of class 0 & 1 exceptions 2008-05-05 13:33:44 +10:00
spu_info.h
spu_priv1.h [POWERPC] cell: wrap master run control bit 2007-12-21 19:45:05 +11:00
spu.h [POWERPC] spufs: handle faults while the context switch pending flag is set 2008-05-05 13:33:44 +10:00
sstep.h
stat.h
statfs.h
string.h [POWERPC] Add hand-coded assembly strcmp 2008-04-07 10:03:03 +10:00
suspend.h
synch.h
syscalls.h unified (weak) sys_pipe implementation 2008-05-03 13:50:33 -07:00
systbl.h [POWERPC] Wire up new timerfd syscalls 2008-02-14 22:11:01 +11:00
system.h [POWERPC] Use __always_inline for xchg* and cmpxchg* 2008-04-29 15:57:34 +10:00
tce.h
termbits.h
termios.h
thread_info.h [POWERPC] Fix kernel stack allocation alignment 2008-04-24 20:57:33 +10:00
time.h [POWERPC] Fix hardware IRQ time accounting problem. 2007-12-06 16:08:59 +11:00
timex.h
tlb.h [POWERPC] Include pagemap.h in asm/powerpc/tlb.h 2007-10-03 12:02:43 +10:00
tlbflush.h [POWERPC] Fix oops related to 4xx flush_tlb_page modification 2007-11-09 03:51:14 -06:00
topology.h asm-generic: add node_to_cpumask_ptr macro 2008-04-19 19:44:58 +02:00
tsi108_irq.h
tsi108_pci.h
tsi108.h
types.h powerpc: types: use <asm-generic/int-*.h> for the powerpc architecture 2008-05-02 16:18:35 -07:00
uaccess.h
ucc_fast.h
ucc_slow.h [POWERPC] qe: miscellaneous code improvements and fixes to the QE library 2007-10-08 08:38:15 -05:00
ucc.h [POWERPC] qe: miscellaneous code improvements and fixes to the QE library 2007-10-08 08:38:15 -05:00
ucontext.h
udbg.h [POWERPC] 4xx: Add early udbg support for 40x processors 2007-12-23 13:13:03 -06:00
uic.h
unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
uninorth.h
unistd.h [POWERPC] Wire up new timerfd syscalls 2008-02-14 22:11:01 +11:00
user.h Sanitize the type of struct user.u_ar0 2008-02-07 08:42:30 -08:00
vdso_datapage.h [POWERPC] vdso: Fixes for cache block sizes 2007-11-20 13:56:31 +11:00
vdso.h
vga.h
vio.h [POWERPC] iSeries: Fix section mismatch in viodsasd 2008-02-06 16:30:00 +11:00
xilinx_intc.h [POWERPC] Virtex: add xilinx interrupt controller driver 2007-10-03 07:23:14 -05:00
xmon.h
xor.h