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ca596a25f0
address space for an address as aligned by the new pmap_align_tlb() function, which is for constraints imposed by the TLB. [1] o) Add a kmem_alloc_nofault_space() function, which acts like kmem_alloc_nofault() but allows the caller to specify which find-space option to use. [1] o) Use kmem_alloc_nofault_space() with VMFS_TLB_ALIGNED_SPACE to allocate the kernel stack address on MIPS. [1] o) Make pmap_align_tlb() on MIPS align addresses so that they do not start on an odd boundary within the TLB, so that they are suitable for insertion as wired entries and do not have to share a TLB entry with another mapping, assuming they are appropriately-sized. o) Eliminate md_realstack now that the kstack will be appropriately-aligned on MIPS. o) Increase the number of guard pages to 2 so that we retain the proper alignment of the kstack address. Reviewed by: [1] alc X-MFC-after: Making sure alc has not come up with a better interface. |
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| rmi | ||
| sentry5 | ||
| sibyte | ||