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![]() Currently unsigned ints are used to represent instructions on powerpc. This has worked well as instructions have always been 4 byte words. However, ISA v3.1 introduces some changes to instructions that mean this scheme will no longer work as well. This change is Prefixed Instructions. A prefixed instruction is made up of a word prefix followed by a word suffix to make an 8 byte double word instruction. No matter the endianness of the system the prefix always comes first. Prefixed instructions are only planned for powerpc64. Introduce a ppc_inst type to represent both prefixed and word instructions on powerpc64 while keeping it possible to exclusively have word instructions on powerpc32. Signed-off-by: Jordan Niethe <jniethe5@gmail.com> [mpe: Fix compile error in emulate_spe()] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200506034050.24806-12-jniethe5@gmail.com |
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.. | ||
book3s32 | ||
book3s64 | ||
kasan | ||
nohash | ||
ptdump | ||
copro_fault.c | ||
dma-noncoherent.c | ||
drmem.c | ||
fault.c | ||
highmem.c | ||
hugetlbpage.c | ||
init-common.c | ||
init_32.c | ||
init_64.c | ||
ioremap.c | ||
ioremap_32.c | ||
ioremap_64.c | ||
Makefile | ||
mem.c | ||
mmap.c | ||
mmu_context.c | ||
mmu_decl.h | ||
numa.c | ||
pgtable-frag.c | ||
pgtable.c | ||
pgtable_32.c | ||
pgtable_64.c | ||
slice.c |