6cb7bfebb1
Merge ppc32 and ppc64 versions of thread_info.h. They were pretty
similar already, the chief changes are:
- Instead of inline asm to implement current_thread_info(),
which needs to be different for ppc32 and ppc64, we use C with an
asm("r1") register variable. gcc turns it into the same asm as we
used to have for both platforms.
- We replace ppc32's 'local_flags' with the ppc64
'syscall_noerror' field. The noerror flag was in fact the only thing
in the local_flags field anyway, so the ppc64 approach is simpler, and
means we only need a load-immediate/store instead of load/mask/store
when clearing the flag.
- In readiness for 64k pages, when THREAD_SIZE will be less
than a page, ppc64 used kmalloc() rather than get_free_pages() to
allocate the kernel stack. With this patch we do the same for ppc32,
since there's no strong reason not to.
- For ppc64, we no longer export THREAD_SHIFT and THREAD_SIZE
via asm-offsets, thread_info.h can now be safely included in asm, as
on ppc32.
Built and booted on G4 Powerbook (ARCH=ppc and ARCH=powerpc) and
Power5 (ARCH=ppc64 and ARCH=powerpc).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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| .. | ||
| iSeries | ||
| abs_addr.h | ||
| bitops.h | ||
| bootinfo.h | ||
| btext.h | ||
| cache.h | ||
| cacheflush.h | ||
| checksum.h | ||
| compat.h | ||
| current.h | ||
| dart.h | ||
| delay.h | ||
| dma-mapping.h | ||
| eeh.h | ||
| firmware.h | ||
| floppy.h | ||
| futex.h | ||
| hvcall.h | ||
| hvconsole.h | ||
| hvcserver.h | ||
| ide.h | ||
| imalloc.h | ||
| io.h | ||
| ipcbuf.h | ||
| kexec.h | ||
| lppaca.h | ||
| mmu.h | ||
| mmu_context.h | ||
| mmzone.h | ||
| naca.h | ||
| numnodes.h | ||
| nvram.h | ||
| paca.h | ||
| page.h | ||
| parport.h | ||
| pci-bridge.h | ||
| pci.h | ||
| pgalloc.h | ||
| pgtable.h | ||
| plpar_wrappers.h | ||
| ppc32.h | ||
| ppcdebug.h | ||
| prom.h | ||
| ptrace-common.h | ||
| ptrace.h | ||
| scatterlist.h | ||
| serial.h | ||
| sigcontext.h | ||
| signal.h | ||
| smp.h | ||
| sparsemem.h | ||
| spinlock.h | ||
| sstep.h | ||
| stat.h | ||
| system.h | ||
| systemcfg.h | ||
| tce.h | ||
| tlb.h | ||
| tlbflush.h | ||
| uaccess.h | ||
| ucontext.h | ||
| udbg.h | ||
| vdso.h | ||
| vio.h | ||
| xics.h | ||