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android_kernel_xiaomi_sm8350/include/asm-powerpc
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Michael Ellerman fac23fe4be powerpc: Introduce infrastructure for feature sections with alternatives 
The current feature section logic only supports nop'ing out code, this means
if you want to choose at runtime between instruction sequences, one or both
cases will have to execute the nop'ed out contents of the other section, eg:

BEGIN_FTR_SECTION
	or	1,1,1
END_FTR_SECTION_IFSET(FOO)
BEGIN_FTR_SECTION
	or	2,2,2
END_FTR_SECTION_IFCLR(FOO)

and the resulting code will be either,

	or	1,1,1
	nop

or,
	nop
	or	2,2,2

For small code segments this is fine, but for larger code blocks and in
performance criticial code segments, it would be nice to avoid the nops.
This commit starts to implement logic to allow the following:

BEGIN_FTR_SECTION
	or	1,1,1
FTR_SECTION_ELSE
	or	2,2,2
ALT_FTR_SECTION_END_IFSET(FOO)

and the resulting code will be:

	or	1,1,1
or,
	or	2,2,2

We achieve this by extending the existing FTR macros. The current feature
section semantic just becomes a special case, ie. if the else case is empty
we nop out the default case.

The key limitation is that the size of the else case must be less than or
equal to the size of the default case. If the else case is smaller the
remainder of the section is nop'ed.

We let the linker put the else case code in with the rest of the text,
so that relative branches from the else case are more likley to link,
this has the disadvantage that we can't free the unused else cases.

This commit introduces the required macro and linker script changes, but
does not enable the patching of the alternative sections.

We also need to update two hand-made section entries in reg.h and timex.h

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-01 11:28:28 +10:00
..
iseries [POWERPC] iSeries: Localise and constify some iSeries data 2008-04-15 21:21:25 +10:00
8xx_immap.h
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 powerpc: Consolidate CPU and firmware feature fixup macros 2008-07-01 11:28:25 +10:00
atomic.h
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
bugs.h
byteorder.h
cache.h powerpc/booke: Add support for new e500mc core 2008-06-18 16:17:56 -05:00
cacheflush.h
cell-pmu.h
cell-regs.h
checksum.h
clk_interface.h
code-patching.h powerpc: Add PPC_NOP_INSTR, a hash define for the preferred nop instruction 2008-07-01 11:28:23 +10:00
compat.h asm-*/compat.h: fix typo in comment 2008-02-03 16:32:51 +02:00
cpm1.h powerpc/cpm: Remove !CONFIG_PPC_CPM_NEW_BINDING code 2008-06-26 01:49:06 -05:00
cpm2.h powerpc/cpm: Remove !CONFIG_PPC_CPM_NEW_BINDING code 2008-06-26 01:49:06 -05:00
cpm.h powerpc/QE: switch to the cpm_muram implementation 2008-06-10 11:11:21 -05:00
cputable.h powerpc: Consolidate CPU and firmware feature fixup macros 2008-07-01 11:28:25 +10:00
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-generic.h [POWERPC] Refactor DCR code 2008-05-29 07:06:56 -05:00
dcr-mmio.h [POWERPC] Refactor DCR code 2008-05-29 07:06:56 -05:00
dcr-native.h [POWERPC] Refactor DCR code 2008-05-29 07:06:56 -05:00
dcr-regs.h [POWERPC] 4xx: Add PPC4xx L2-cache support (440GX) 2008-03-26 07:27:54 -05:00
dcr.h [POWERPC] Refactor DCR code 2008-05-29 07:06:56 -05:00
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: asm/elf.h: Reduce userspace header 2008-07-01 11:28:15 +10:00
emergency-restart.h
errno.h
exception.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
fb.h
fcntl.h
feature-fixups.h powerpc: Introduce infrastructure for feature sections with alternatives 2008-07-01 11:28:28 +10:00
firmware.h powerpc: Consolidate CPU and firmware feature fixup macros 2008-07-01 11:28:25 +10:00
fixmap.h [POWERPC] Port fixmap from x86 and use for kmap_atomic 2008-04-24 20:58:02 +10:00
floppy.h
fs_pd.h
fsl_gtm.h powerpc/sysdev: implement FSL GTM support 2008-06-10 10:38:50 -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
i8259.h
ibmebus.h
ide.h ide: remove ide_init_default_irq() macro 2008-04-18 00:46:35 +02:00
immap_86xx.h
immap_cpm2.h
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: Fix copy-and-paste error in clrsetbits_le16 2008-06-30 22:31:07 +10:00
ioctl.h [POWERPC] Get most of ioctl.h content from <asm-generic/ioctl.h> 2008-05-16 23:22:28 +10:00
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
irq_regs.h
irq.h [POWERPC] Move to runtime allocated exception stacks 2008-06-02 14:54:42 -05:00
irqflags.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
Kbuild powerpc: Don't export asm/asm-compat.h to userspace 2008-07-01 11:28:09 +10:00
kdebug.h
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: Provide dummy crash_shutdown_register 2008-06-30 22:30:55 +10:00
keylargo.h
kgdb.h
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: Remove duplicate function 2008-06-06 21:22:09 +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/85xx: add DOZE/NAP support for e500 core 2008-06-26 01:48:56 -05:00
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 [POWERPC] Build fix for drivers/macintosh/mediabay.c 2008-06-16 15:00:47 +10:00
mman.h
mmu_context.h
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: Get rid of bitfields in ppc_bat struct 2008-06-30 22:31:05 +10:00
mmu-hash64.h Merge branch 'linux-2.6' into powerpc-next 2008-05-16 23:13:42 +10:00
mmu.h
mmzone.h
module.h
mpc6xx.h [POWERPC] Add 6xx-style HID0_SLEEP support. 2008-05-16 23:22:28 +10:00
mpc8xx.h
mpc52xx_psc.h [POWERPC] mpc512x: Add MPC512x PSC support to MPC52xx psc driver 2008-02-06 14:05:40 -07:00
mpc52xx.h
mpc86xx.h
mpc512x.h [POWERPC] mpc512x: Basic platform support 2008-02-06 14:03:10 -07:00
mpc8260.h
mpic.h Merge branch 'merge' into powerpc-next 2008-05-23 16:53:23 +10:00
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_get_modalias to drivers/of 2008-05-16 23:22:28 +10:00
of_platform.h
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 powerpc: Only demote individual slices rather than whole process 2008-07-01 11:27:57 +10:00
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/4xx: Workaround for PPC440EPx/GRx PCI_28 Errata 2008-06-17 19:01:38 -04:00
pci.h
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: Free a PTE bit on ppc64 with 64K pages 2008-06-30 22:30:53 +10:00
pgtable-64k.h powerpc: Free a PTE bit on ppc64 with 64K pages 2008-06-30 22:30:53 +10:00
pgtable-ppc32.h powerpc: Silly spelling fix in pgtable-ppc32 2008-06-30 22:31:01 +10:00
pgtable-ppc64.h powerpc: Free a PTE bit on ppc64 with 64K pages 2008-06-30 22:30:53 +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] Tweak VDSO linker script to avoid upsetting old binutils 2008-05-23 15:27:23 +10:00
ppc-pci.h
processor.h powerpc: Check that TASK_SIZE does not overlap KERNEL_START 2008-06-09 13:46:40 +10:00
prom.h powerpc: Implement OF PCI address accessors stubs for CONFIG_PCI=n 2008-06-30 22:30:51 +10:00
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] Set lower flag bits in regs->trap to indicate debug level exception 2008-05-14 22:31:37 +10:00
qe_ic.h
qe.h powerpc/QE: use arch_initcall to probe QUICC Engine GPIOs 2008-06-26 01:49:09 -05:00
reg_8xx.h
reg_booke.h powerpc/e500mc: flush L2 on NAP for e500mc 2008-06-26 01:49:03 -05:00
reg_fsl_emb.h [POWERPC] Made FSL Book-E PMC support more generic 2008-02-05 23:34:14 -06:00
reg.h powerpc: Introduce infrastructure for feature sections with alternatives 2008-07-01 11:28:28 +10:00
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
rtc.h
rwsem.h [POWERPC] irqtrace support for 64-bit powerpc 2008-04-18 15:38:47 +10:00
scatterlist.h
seccomp.h
sections.h
semaphore.h Generic semaphore implementation 2008-04-17 10:42:34 -04:00
sembuf.h
serial.h
setjmp.h
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h
smp.h [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
smu.h
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: remove class_0_dsisr from spu exception handling 2008-06-16 14:35:00 +10:00
spu_info.h
spu_priv1.h
spu.h powerpc/spufs: remove class_0_dsisr from spu exception handling 2008-06-16 14:35:00 +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 powerpc/booke: Add support for new e500mc core 2008-06-18 16:17:56 -05:00
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: Move code patching code into arch/powerpc/lib/code-patching.c 2008-07-01 11:28:18 +10:00
tce.h
termbits.h
termios.h
thread_info.h [POWERPC] Defer processing of interrupts when the CPU wakes from sleep mode 2008-05-16 23:22:28 +10:00
time.h [POWERPC] Fix sparse warnings in arch/powerpc/kernel 2008-05-14 22:31:59 +10:00
timex.h powerpc: Introduce infrastructure for feature sections with alternatives 2008-07-01 11:28:28 +10:00
tlb.h
tlbflush.h
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 [POWERPC] Fix uninitialized variable bug in copy_{to|from}_user 2008-05-15 20:49:52 +10:00
ucc_fast.h
ucc_slow.h
ucc.h
ucontext.h
udbg.h
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
vdso.h
vga.h
vio.h [POWERPC] iSeries: Fix section mismatch in viodsasd 2008-02-06 16:30:00 +11:00
xilinx_intc.h
xmon.h [POWERPC] Make cpus_in_xmon static and remove extern mess from hvc_console.c 2008-05-14 22:31:57 +10:00
xor.h