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8318f7c231
Optimize memcpy_{from,to}io() and memset_io() by transferring in
64 bit as much as possible with minimized barrier usage. This
simplest optimization brings faster throughput compare to current
byte-by-byte read and write with barrier in the loop. Code's
skeleton is taken from the powerpc & arm64.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
20 lines
642 B
Makefile
20 lines
642 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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extra-y := head.o vmlinux.lds
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obj-y += entry.o atomic.o signal.o traps.o irq.o time.o vdso.o vdso/
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obj-y += power.o syscall.o syscall_table.o setup.o io.o
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obj-y += process.o cpu-probe.o ptrace.o stacktrace.o
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obj-y += probes/
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_CSKY_PMU_V1) += perf_event.o
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obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o
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obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o
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ifdef CONFIG_FUNCTION_TRACER
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CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
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endif
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