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[Gnewsense-dev] [loongson-PATCH-v1 10/27] add loongson-specific cpu-feat
From: |
wuzhangjin |
Subject: |
[Gnewsense-dev] [loongson-PATCH-v1 10/27] add loongson-specific cpu-feature-overrides.h |
Date: |
Thu, 21 May 2009 05:54:12 +0800 |
From: Wu Zhangjin <address@hidden>
This file will obviously reduce the size of kernel image file, reduce
tons of branches and enhance the performance.
$ wc -c vmlinux // before
8054849 vmlinux
$ wc -c vmlinux // after
7626936 vmlinux
$ echo $(((8054849-7626936)/1024)) // kb
417
$ echo "(8054849-7626936)/8054849" | bc -l
.05312489408553779220
Signed-off-by: Wu Zhangjin <address@hidden>
---
.../asm/mach-loongson/cpu-feature-overrides.h | 58 ++++++++++++++++++++
1 files changed, 58 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
diff --git a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
new file mode 100644
index 0000000..daa2ee9
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
@@ -0,0 +1,58 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009 Wu Zhangjin <address@hidden>
+ * Copyright (C) 2009 Philippe Vachon <address@hidden>
+ * Copyright (C) 2009 Zhang Le <address@hidden>
+ *
+ * reference: /proc/cpuinfo,
+ * arch/mips/kernel/cpu-probe.c(cpu_probe_legacy),
+ * arch/mips/kernel/proc.c(show_cpuinfo),
+ * loongson2f user manual.
+ */
+
+#ifndef __ASM_LOONGSON_CPU_FEATURE_OVERRIDES_H
+#define __ASM_LOONGSON_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_dcache_line_size() 32
+#define cpu_icache_line_size() 32
+#define cpu_scache_line_size() 32
+
+#define cpu_has_32fpr 1
+#define cpu_has_3k_cache 0
+#define cpu_has_4k_cache 1
+#define cpu_has_4kex 1
+#define cpu_has_64bits 1
+#define cpu_has_cache_cdex_p 0
+#define cpu_has_cache_cdex_s 0
+#define cpu_has_counter 1
+#define cpu_has_dc_aliases 1
+#define cpu_has_divec 0
+#define cpu_has_dsp 0
+#define cpu_has_ejtag 0
+#define cpu_has_fpu 1
+#define cpu_has_ic_fills_f_dc 0
+#define cpu_has_inclusive_pcaches 1
+#define cpu_has_llsc 1
+#define cpu_has_mcheck 0
+#define cpu_has_mdmx 0
+#define cpu_has_mips16 0
+#define cpu_has_mips32r1 0
+#define cpu_has_mips32r2 0
+#define cpu_has_mips3d 0
+#define cpu_has_mips64r1 0
+#define cpu_has_mips64r2 0
+#define cpu_has_mipsmt 0
+#define cpu_has_prefetch 0
+#define cpu_has_smartmips 0
+#define cpu_has_tlb 1
+#define cpu_has_tx39_cache 0
+#define cpu_has_userlocal 0
+#define cpu_has_vce 0
+#define cpu_has_vtag_icache 0
+#define cpu_has_watch 1
+#define cpu_icache_snoops_remote_store 1
+
+#endif /* __ASM_LOONGSON_CPU_FEATURE_OVERRIDES_H */
--
1.6.2.1
- [Gnewsense-dev] [loongson-PATCH-v1 02/27] fix-warning: incompatible argument type of virt_to_phys, (continued)
- [Gnewsense-dev] [loongson-PATCH-v1 02/27] fix-warning: incompatible argument type of virt_to_phys, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 04/27] change the naming methods, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 03/27] fix-error: incompatiable argument type of clear_user, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 05/27] remove reference to bonito64.h, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 09/27] enable Real Time Clock Support for fuloong(2e), wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 06/27] divide the files to the smallest logic unit, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 08/27] clean up the early printk support for fuloong(2e), wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 07/27] replace tons of magic numbers by understandable symbols, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 10/27] add loongson-specific cpu-feature-overrides.h,
wuzhangjin <=
- [Gnewsense-dev] [loongson-PATCH-v1 11/27] split the loongson-specific part out, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 12/27] add basic loongson-2f support, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 13/27] add basic fuloong(2f) support, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 14/27] enable serial port support of loongson-based machines, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 15/27] add basic yeeloong(2f) laptop support, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 17/27] define Loongson2F arch specific phys prot access, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 16/27] Add Siliconmotion 712 framebuffer driver, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 18/27] Loongson2 specific OProfile driver, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 19/27] flush posted write to irq, wuzhangjin, 2009/05/21
- [Gnewsense-dev] [loongson-PATCH-v1 21/27] Loongson2F cpufreq support, wuzhangjin, 2009/05/21