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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

  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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