mirror of https://gitee.com/openkylin/linux.git
26ef5c0957
The ppc32 and ppc64 versions of cacheflush.h were almost identical. The two versions of cache.h are fairly similar, except for a bunch of register definitions in the ppc32 version which probably belong better elsewhere. This patch, therefore, merges both headers. Notable points: - there are several functions in cacheflush.h which exist only on ppc32 or only on ppc64. These are handled by #ifdef for now, but these should probably be consolidated, along with the actual code behind them later. - Confusingly, both ppc32 and ppc64 have a flush_dcache_range(), but they're subtly different: it uses dcbf on ppc32 and dcbst on ppc64, ppc64 has a flush_inval_dcache_range() which uses dcbf. These too should be merged and consolidated later. - Also flush_dcache_range() was defined in cacheflush.h on ppc64, and in cache.h on ppc32. In the merged version it's in cacheflush.h - On ppc32 flush_icache_range() is a normal function from misc.S. On ppc64, it was wrapper, testing a feature bit before calling __flush_icache_range() which does the actual flush. This patch takes the ppc64 approach, which amounts to no change on ppc32, since CPU_FTR_COHERENT_ICACHE will never be set there, but does mean renaming flush_icache_range() to __flush_icache_range() in arch/ppc/kernel/misc.S and arch/powerpc/kernel/misc_32.S - The PReP register info from asm-ppc/cache.h has moved to arch/ppc/platforms/prep_setup.c - The 8xx register info from asm-ppc/cache.h has moved to a new asm-powerpc/reg_8xx.h, included from reg.h - flush_dcache_all() was defined on ppc32 (only), but was never called (although it was exported). Thus this patch removes it from cacheflush.h and from ARCH=powerpc (misc_32.S) entirely. It's left in ARCH=ppc for now, with the prototype moved to ppc_ksyms.c. Built for Walnut (ARCH=ppc), 32-bit multiplatform (pmac, CHRP and PReP ARCH=ppc, pmac and CHRP ARCH=powerpc). Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64). Built for 32-bit powermac (ARCH=ppc and ARCH=powerpc). Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64). Built and booted on G5 (ARCH=powerpc) Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org> |
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| .. | ||
| Makefile | ||
| asm-offsets.c | ||
| binfmt_elf32.c | ||
| btext.c | ||
| cpu_setup_power4.S | ||
| cputable.c | ||
| entry_32.S | ||
| entry_64.S | ||
| firmware.c | ||
| fpu.S | ||
| head_4xx.S | ||
| head_8xx.S | ||
| head_32.S | ||
| head_44x.S | ||
| head_64.S | ||
| head_fsl_booke.S | ||
| idle_6xx.S | ||
| idle_power4.S | ||
| init_task.c | ||
| ioctl32.c | ||
| irq.c | ||
| lparmap.c | ||
| misc_32.S | ||
| misc_64.S | ||
| of_device.c | ||
| paca.c | ||
| pmc.c | ||
| ppc32.h | ||
| ppc_ksyms.c | ||
| process.c | ||
| prom.c | ||
| prom_init.c | ||
| ptrace.c | ||
| ptrace32.c | ||
| rtas-proc.c | ||
| rtas.c | ||
| rtas_flash.c | ||
| semaphore.c | ||
| setup-common.c | ||
| setup.h | ||
| setup_32.c | ||
| setup_64.c | ||
| signal_32.c | ||
| signal_64.c | ||
| smp-tbsync.c | ||
| smp.c | ||
| sys_ppc32.c | ||
| syscalls.c | ||
| systbl.S | ||
| time.c | ||
| traps.c | ||
| vecemu.c | ||
| vector.S | ||
| vio.c | ||
| vmlinux.lds.S | ||