From: Shinya Kuribayashi <skuribay@pobox.com>
To: David VomLehn <dvomlehn@cisco.com>,
ralf@linux-mips.org, macro@linux-mips.org
Cc: linux-mips@linux-mips.org
Subject: [PATCH 1/2] MIPS: PowerTV: Provide cpu-feature-overrides.h
Date: Tue, 13 Jul 2010 00:41:12 +0900 [thread overview]
Message-ID: <4C3B3798.9010908@pobox.com> (raw)
In-Reply-To: <4C3B36B3.6010800@pobox.com>
From: David VomLehn <dvomlehn@cisco.com>
This will optimize fls() and __fls() to use CLZ throughout the kernel,
and any other optimizations that depend on constant cpu_has_* values
will also be used.
Signed-off-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
---
.../asm/mach-powertv/cpu-feature-overrides.h | 59 ++++++++++++++++++++
1 files changed, 59 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
diff --git a/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
new file mode 100644
index 0000000..f751e3e
--- /dev/null
+++ b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 Cisco Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define cpu_has_tlb 1
+#define cpu_has_4kex 1
+#define cpu_has_3k_cache 0
+#define cpu_has_4k_cache 1
+#define cpu_has_tx39_cache 0
+#define cpu_has_fpu 0
+#define cpu_has_counter 1
+#define cpu_has_watch 1
+#define cpu_has_divec 1
+#define cpu_has_vce 0
+#define cpu_has_cache_cdex_p 0
+#define cpu_has_cache_cdex_s 0
+#define cpu_has_mcheck 1
+#define cpu_has_ejtag 1
+#define cpu_has_llsc 1
+#define cpu_has_mips16 0
+#define cpu_has_mdmx 0
+#define cpu_has_mips3d 0
+#define cpu_has_smartmips 0
+#define cpu_has_vtag_icache 0
+#define cpu_has_dc_aliases 0
+#define cpu_has_ic_fills_f_dc 0
+#define cpu_has_mips32r1 0
+#define cpu_has_mips32r2 1
+#define cpu_has_mips64r1 0
+#define cpu_has_mips64r2 0
+#define cpu_has_dsp 0
+#define cpu_has_mipsmt 0
+#define cpu_has_userlocal 0
+#define cpu_has_nofpuex 0
+#define cpu_has_64bits 0
+#define cpu_has_64bit_zero_reg 0
+#define cpu_has_vint 1
+#define cpu_has_veic 1
+#define cpu_has_inclusive_pcaches 0
+
+#define cpu_dcache_line_size() 32
+#define cpu_icache_line_size() 32
+#endif
--
1.7.1.1
next prev parent reply other threads:[~2010-07-12 15:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-12 15:37 [PATCH 0/2] MIPS: cpu-feature-overrides patches Shinya Kuribayashi
2010-07-12 15:41 ` Shinya Kuribayashi [this message]
2011-05-19 15:38 ` [PATCH 1/2] MIPS: PowerTV: Provide cpu-feature-overrides.h Ralf Baechle
2010-07-12 15:41 ` [PATCH 2/2] MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platforms Shinya Kuribayashi
2011-05-19 15:39 ` Ralf Baechle
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