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9e28bf8bdf
Coldfire cores configured without a data cache are DMA coherent and
should thus simply use the simple coherent version of dma-direct.
Introduce a new COLDFIRE_COHERENT_DMA Kconfig symbol as a convenient
short hand for such configurations, and a M68K_NONCOHERENT_DMA symbol
for all cases where we need to build non-coherent DMA infrastructure
to simplify the Kconfig and code conditionals.
Not building the non-coherent DMA code slightly reduces the code
size for such configurations.
Numers for m5249evb_defconfig below:
text data bss dec hex filename
2896158 401052 65392 3362602 334f2a vmlinux.before
2895166 400988 65392 3361546 334b0a vmlinux.after
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Greg Ungerer <gerg@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
34 lines
868 B
Makefile
34 lines
868 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the linux kernel.
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#
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extra-y += vmlinux.lds
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obj-$(CONFIG_AMIGA) := head.o
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obj-$(CONFIG_ATARI) := head.o
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obj-$(CONFIG_MAC) := head.o
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obj-$(CONFIG_APOLLO) := head.o
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obj-$(CONFIG_VME) := head.o
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obj-$(CONFIG_HP300) := head.o
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obj-$(CONFIG_Q40) := head.o
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obj-$(CONFIG_SUN3X) := head.o
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obj-$(CONFIG_VIRT) := head.o
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obj-$(CONFIG_SUN3) := sun3-head.o
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obj-y += entry.o irq.o module.o process.o ptrace.o
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obj-y += setup.o signal.o sys_m68k.o syscalltable.o time.o traps.o
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obj-$(CONFIG_MMU_MOTOROLA) += ints.o vectors.o
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obj-$(CONFIG_MMU_SUN3) += ints.o vectors.o
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obj-$(CONFIG_PCI) += pcibios.o
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obj-$(CONFIG_M68K_NONCOHERENT_DMA) += dma.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_BOOTINFO_PROC) += bootinfo_proc.o
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obj-$(CONFIG_UBOOT) += uboot.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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