a99d6fde69
This converts the sh64 /proc/asids entry to debugfs and enables it for all SH parts that have debugfs enabled. On MMU systems this can be used to determine which processes are using which ASIDs which in turn can be used for finer grained cache tag analysis. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
#
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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 := init.o consistent.o mmap.o
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mmu-y := tlb-nommu.o pg-nommu.o extable_32.o
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mmu-$(CONFIG_MMU) := fault_64.o ioremap_64.o tlbflush_64.o tlb-sh5.o \
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extable_64.o
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ifndef CONFIG_CACHE_OFF
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obj-y += cache-sh5.o
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endif
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obj-y += $(mmu-y)
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obj-$(CONFIG_DEBUG_FS) += asids-debugfs.o
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obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
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obj-$(CONFIG_NUMA) += numa.o
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EXTRA_CFLAGS += -Werror
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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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