4d35b93a66
Some devices need to be ioremap'd and accessed very early in the boot process. It is not possible to use the standard ioremap() function in this case because that requires kmalloc()'ing some virtual address space and kmalloc() may not be available so early in boot. This patch provides fixmap mappings that allow physical address ranges to be remapped into the kernel address space during the early boot stages. Signed-off-by: Matt Fleming <matt@console-pimps.org>
65 lines
2.3 KiB
Makefile
65 lines
2.3 KiB
Makefile
#
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# Makefile for the Linux SuperH-specific parts of the memory manager.
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#
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obj-y := alignment.o cache.o init.o consistent.o mmap.o
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cacheops-$(CONFIG_CPU_SH2) := cache-sh2.o
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cacheops-$(CONFIG_CPU_SH2A) := cache-sh2a.o
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cacheops-$(CONFIG_CPU_SH3) := cache-sh3.o
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cacheops-$(CONFIG_CPU_SH4) := cache-sh4.o flush-sh4.o
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cacheops-$(CONFIG_CPU_SH5) := cache-sh5.o flush-sh4.o
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cacheops-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o
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obj-y += $(cacheops-y)
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mmu-y := nommu.o extable_32.o
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mmu-$(CONFIG_MMU) := extable_$(BITS).o fault_$(BITS).o \
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ioremap_$(BITS).o kmap.o pgtable.o tlbflush_$(BITS).o
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obj-y += $(mmu-y)
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obj-$(CONFIG_DEBUG_FS) += asids-debugfs.o
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ifdef CONFIG_DEBUG_FS
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obj-$(CONFIG_CPU_SH4) += cache-debugfs.o
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endif
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ifdef CONFIG_MMU
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tlb-$(CONFIG_CPU_SH3) := tlb-sh3.o
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tlb-$(CONFIG_CPU_SH4) := tlb-sh4.o
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tlb-$(CONFIG_CPU_SH5) := tlb-sh5.o
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tlb-$(CONFIG_CPU_HAS_PTEAEX) := tlb-pteaex.o
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obj-y += $(tlb-y)
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endif
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obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
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obj-$(CONFIG_PMB) += pmb.o
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obj-$(CONFIG_NUMA) += numa.o
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obj-$(CONFIG_IOREMAP_FIXED) += ioremap_fixed.o
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# Special flags for fault_64.o. This puts restrictions on the number of
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# caller-save registers that the compiler can target when building this file.
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# This is required because the code is called from a context in entry.S where
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# very few registers have been saved in the exception handler (for speed
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# reasons).
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# The caller save registers that have been saved and which can be used are
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# r2,r3,r4,r5 : argument passing
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# r15, r18 : SP and LINK
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# tr0-4 : allow all caller-save TR's. The compiler seems to be able to make
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# use of them, so it's probably beneficial to performance to save them
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# and have them available for it.
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#
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# The resources not listed below are callee save, i.e. the compiler is free to
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# use any of them and will spill them to the stack itself.
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CFLAGS_fault_64.o += -ffixed-r7 \
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-ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
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-ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
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-ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
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-ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
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-ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
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-ffixed-r41 -ffixed-r42 -ffixed-r43 \
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-ffixed-r60 -ffixed-r61 -ffixed-r62 \
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-fomit-frame-pointer
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EXTRA_CFLAGS += -Werror
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