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>
21 lines
489 B
Makefile
21 lines
489 B
Makefile
#
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# Makefile for ppc-specific library files..
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#
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ifeq ($(CONFIG_PPC_MERGE),y)
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obj-y := string.o strcase.o
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obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o
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endif
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obj-y += bitops.o
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obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \
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memcpy_64.o usercopy_64.o mem_64.o string.o \
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strcase.o
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obj-$(CONFIG_PPC_ISERIES) += e2a.o
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obj-$(CONFIG_XMON) += sstep.o
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ifeq ($(CONFIG_PPC64),y)
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obj-$(CONFIG_SMP) += locks.o
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obj-$(CONFIG_DEBUG_KERNEL) += sstep.o
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endif
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