* Benjamin Herrenschmidt | 2008-10-10 14:53:46 [+1100]: >On Wed, 2008-10-01 at 23:20 +0200, Sebastian Andrzej Siewior wrote: > >> +#define KEXEC_MODE_NOMMU 1 >> +#define KEXEC_MODE_BOOKE 2 > >No need for runtime detection here, you cannot and likely never will be >able to build a kernel that does bot BookE and real mode... okay. >> + >> +/* 1. Find the index of the entry we're executing in */ >> + bl invstr /* Find our address */ >> +invstr: >> + mflr r6 /* Make it accessible */ >> + mfmsr r7 >> + rlwinm r4,r7,27,31,31 /* extract MSR[IS] */ >> + mfspr r7, SPRN_PID0 >> + slwi r7,r7,16 >> + or r7,r7,r4 >> + mtspr SPRN_MAS6,r7 >> + tlbsx 0,r6 /* search MSR[IS], SPID=PID0 */ >> + mfspr r7,SPRN_MAS1 >> + andis. r7,r7,MAS1_VALID at h >> + bne match_TLB > >This isn't just BookE .. it's specifically FSL BookE (or "merged" >architecture). This isn't going to work on 44x for example. You need to >make it clearer. Okay, I did know that. So I put a ifdef CONFIG_FSL_BOOKE around. May I leave that MMU setup here? Moving it over to head_fsl_booke.S would make it clear but than I have to copy the page-copy-code as well. Thanks for looking over these bits Ben. >Cheers, >Ben. Sebastian
