# # This file is subject to the terms and conditions of the GNU General Public # License. See the file "COPYING" in the main directory of this archive # for more details. # # Copyright (C) 2000, 2001 Paolo Alberelli # Copyright (C) 2003, 2004 Paul Mundt # # Makefile for the sh64-specific parts of the Linux memory manager. # # Note! Dependencies are done automagically by 'make dep', which also # removes any old dependencies. DON'T put your own dependencies here # unless it's something special (ie not a .c file). # obj-y := init.o fault.o ioremap.o extable.o cache.o tlbmiss.o tlb.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o # Special flags for tlbmiss.o. This puts restrictions on the number of # caller-save registers that the compiler can target when building this file. # This is required because the code is called from a context in entry.S where # very few registers have been saved in the exception handler (for speed # reasons). # The caller save registers that have been saved and which can be used are # r2,r3,r4,r5 : argument passing # r15, r18 : SP and LINK # tr0-4 : allow all caller-save TR's. The compiler seems to be able to make # use of them, so it's probably beneficial to performance to save them # and have them available for it. # # The resources not listed below are callee save, i.e. the compiler is free to # use any of them and will spill them to the stack itself. CFLAGS_tlbmiss.o += -ffixed-r7 \ -ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \ -ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \ -ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \ -ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \ -ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \ -ffixed-r41 -ffixed-r42 -ffixed-r43 \ -ffixed-r60 -ffixed-r61 -ffixed-r62 \ -fomit-frame-pointer