mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
a0e60b2033
Here's a revised version. This re-introduces the set_bits() function from ppc64, which I removed because I thought it was unused (it exists on no other arch). In fact it is used in the powermac interrupt code (but not on pSeries). - We use LARXL/STCXL macros to generate the right (32 or 64 bit) instructions, similar to LDL/STL from ppc_asm.h, used in fpu.S - ppc32 previously used a full "sync" barrier at the end of test_and_*_bit(), whereas ppc64 used an "isync". The merged version uses "isync", since I believe that's sufficient. - The ppc64 versions of then minix_*() bitmap functions have changed semantics. Previously on ppc64, these functions were big-endian (that is bit 0 was the LSB in the first 64-bit, big-endian word). On ppc32 (and x86, for that matter, they were little-endian. As far as I can tell, the big-endian usage was simply wrong - I guess no-one ever tried to use minixfs on ppc64. - On ppc32 find_next_bit() and find_next_zero_bit() are no longer inline (they were already out-of-line on ppc64). - For ppc64, sched_find_first_bit() has moved from mmu_context.h to the merged bitops. What it was doing in mmu_context.h in the first place, I have no idea. - The fls() function is now implemented using the cntlzw instruction on ppc64, instead of generic_fls(), as it already was on ppc32. - For ARCH=ppc, this patch requires adding arch/powerpc/lib to the arch/ppc/Makefile. This in turn requires some changes to arch/powerpc/lib/Makefile which didn't correctly handle ARCH=ppc. Built and running on G5. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> |
||
|---|---|---|
| .. | ||
| align.c | ||
| asm-offsets.c | ||
| cpu_setup_6xx.S | ||
| cpu_setup_power4.S | ||
| dma-mapping.c | ||
| entry.S | ||
| head.S | ||
| head_4xx.S | ||
| head_8xx.S | ||
| head_44x.S | ||
| head_booke.h | ||
| head_fsl_booke.S | ||
| idle.c | ||
| idle_6xx.S | ||
| idle_power4.S | ||
| irq.c | ||
| l2cr.S | ||
| machine_kexec.c | ||
| Makefile | ||
| misc.S | ||
| module.c | ||
| pci.c | ||
| perfmon_fsl_booke.c | ||
| ppc-stub.c | ||
| ppc_htab.c | ||
| ppc_ksyms.c | ||
| process.c | ||
| relocate_kernel.S | ||
| semaphore.c | ||
| setup.c | ||
| smp-tbsync.c | ||
| smp.c | ||
| softemu8xx.c | ||
| swsusp.S | ||
| temp.c | ||
| time.c | ||
| traps.c | ||
| vmlinux.lds.S | ||