9852ba6a91
Override certain CPU features to help GCC to optimize
the generated code. Saves about 150KB in the vmlinux
image with a generic configuration.
text data bss dec hex filename
3824158 134820 234192 4193170 3ffb92 vmlinux.no-override
3664054 138804 234192 4037050 3d99ba vmlinux.override
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5759/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* Ralink MT7620 specific CPU feature overrides
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*
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* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* This file was derived from: include/asm-mips/cpu-features.h
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* Copyright (C) 2003, 2004 Ralf Baechle
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* Copyright (C) 2004 Maciej W. Rozycki
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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*/
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#ifndef _MT7620_CPU_FEATURE_OVERRIDES_H
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#define _MT7620_CPU_FEATURE_OVERRIDES_H
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#define cpu_has_tlb 1
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#define cpu_has_4kex 1
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#define cpu_has_3k_cache 0
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#define cpu_has_4k_cache 1
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#define cpu_has_tx39_cache 0
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#define cpu_has_sb1_cache 0
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#define cpu_has_fpu 0
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#define cpu_has_32fpr 0
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#define cpu_has_counter 1
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#define cpu_has_watch 1
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#define cpu_has_divec 1
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#define cpu_has_prefetch 1
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#define cpu_has_ejtag 1
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#define cpu_has_llsc 1
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#define cpu_has_mips16 1
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#define cpu_has_mdmx 0
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#define cpu_has_mips3d 0
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#define cpu_has_smartmips 0
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#define cpu_has_mips32r1 1
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#define cpu_has_mips32r2 1
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#define cpu_has_mips64r1 0
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#define cpu_has_mips64r2 0
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#define cpu_has_dsp 1
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#define cpu_has_dsp2 0
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#define cpu_has_mipsmt 0
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#define cpu_has_64bits 0
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#define cpu_has_64bit_zero_reg 0
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#define cpu_has_64bit_gp_regs 0
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#define cpu_has_64bit_addresses 0
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#define cpu_dcache_line_size() 32
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#define cpu_icache_line_size() 32
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#endif /* _MT7620_CPU_FEATURE_OVERRIDES_H */
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