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From: Rich Felker <dalias@libc.org>
To: linux-kernel@vger.kernel.org, linux-sh@vger.kernel.org
Cc: Rich Felker <dalias@libc.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>
Subject: [PATCH v2 07/12] sh: add AT_HWCAP flag for J-Core cas.l instruction
Date: Fri, 20 May 2016 02:53:04 +0000	[thread overview]
Message-ID: <eaa0ded48f436471080d9feda3015c6176393c20.1463708766.git.dalias@libc.org> (raw)
In-Reply-To: <cover.1463708766.git.dalias@libc.org>

Signed-off-by: Rich Felker <dalias@libc.org>
---
 arch/sh/include/uapi/asm/cpu-features.h | 1 +
 arch/sh/kernel/cpu/sh2/probe.c          | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/sh/include/uapi/asm/cpu-features.h b/arch/sh/include/uapi/asm/cpu-features.h
index 694abe4..2f1bc85 100644
--- a/arch/sh/include/uapi/asm/cpu-features.h
+++ b/arch/sh/include/uapi/asm/cpu-features.h
@@ -22,5 +22,6 @@
 #define CPU_HAS_L2_CACHE	0x0080	/* Secondary cache / URAM */
 #define CPU_HAS_OP32		0x0100	/* 32-bit instruction support */
 #define CPU_HAS_PTEAEX		0x0200	/* PTE ASID Extension support */
+#define CPU_HAS_CAS_L		0x0400	/* cas.l atomic compare-and-swap */
 
 #endif /* __ASM_SH_CPU_FEATURES_H */
diff --git a/arch/sh/kernel/cpu/sh2/probe.c b/arch/sh/kernel/cpu/sh2/probe.c
index 3dd8187..665fcfb 100644
--- a/arch/sh/kernel/cpu/sh2/probe.c
+++ b/arch/sh/kernel/cpu/sh2/probe.c
@@ -54,6 +54,8 @@ void __ref cpu_probe(void)
 	boot_cpu_data.dcache.entry_shift	= 5;
 	boot_cpu_data.dcache.linesz		= 32;
 	boot_cpu_data.dcache.flags		= 0;
+
+	boot_cpu_data.flags |= CPU_HAS_CAS_L;
 #else
 	/*
 	 * SH-2 doesn't have separate caches
-- 
2.8.1

  parent reply	other threads:[~2016-05-20  2:56 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-20  2:53 [PATCH v2 00/12] J-core J2 cpu and SoC peripherals support Rich Felker
2016-05-20  2:53 ` [PATCH v2 02/12] of: add J-Core cpu bindings Rich Felker
2016-05-23 20:48   ` Rob Herring
2016-05-23 21:03     ` Rich Felker
2016-05-23 23:29       ` Rob Herring
2016-05-24  2:39         ` Rich Felker
2016-05-24 21:30         ` Rob Landley
2016-05-25  1:13           ` Rob Herring
2016-05-25  2:33             ` Rich Felker
2016-05-25 13:13               ` Rob Herring
2016-05-20  2:53 ` [PATCH v2 01/12] of: add vendor prefix for J-Core Rich Felker
2016-05-23 20:49   ` Rob Herring
2016-05-20  2:53 ` [PATCH v2 08/12] irqchip: add J-Core AIC driver Rich Felker
2016-05-20  8:08   ` Geert Uytterhoeven
2016-05-20  8:15   ` Marc Zyngier
2016-05-25  4:29     ` Rich Felker
2016-05-20  2:53 ` [PATCH v2 03/12] of: add J-Core interrupt controller bindings Rich Felker
2016-05-20  8:04   ` Geert Uytterhoeven
2016-05-20 22:34     ` Rich Felker
2016-05-21 18:07       ` Geert Uytterhoeven
2016-05-21 19:17         ` Rich Felker
2016-05-23 20:53   ` Rob Herring
2016-05-23 21:13     ` Rich Felker
2016-05-24  8:09       ` Marc Zyngier
2016-05-25  2:25         ` Rich Felker
2016-05-20  2:53 ` [PATCH v2 06/12] sh: add support for J-Core J2 processor Rich Felker
2016-05-20  2:53 ` [PATCH v2 11/12] sh: add defconfig for J-Core J2 Rich Felker
2016-05-20  2:53 ` [PATCH v2 09/12] clocksource: add J-Core PIT/RTC driver Rich Felker
2016-05-20 14:01   ` Daniel Lezcano
2016-05-21  3:15     ` Rich Felker
2016-05-21 15:55       ` Rob Landley
2016-05-23 20:32       ` Daniel Lezcano
2016-05-24  2:25         ` Rich Felker
2016-05-20  2:53 ` [PATCH v2 04/12] of: add J-Core timer bindings Rich Felker
2016-05-20  8:03   ` Geert Uytterhoeven
2016-05-20  2:53 ` [PATCH v2 12/12] sh: add device tree source for J2 FPGA on Mimas v2 board Rich Felker
2016-05-20  8:17   ` Geert Uytterhoeven
2016-05-20 22:42     ` Rich Felker
2016-05-20  2:53 ` [PATCH v2 10/12] spi: add driver for J-Core SPI controller Rich Felker
2016-05-20  8:15   ` Geert Uytterhoeven
2016-05-20 22:50     ` Rich Felker
2016-05-20 10:23   ` Mark Brown
2016-05-20 23:24     ` Rich Felker
2016-05-23 15:30       ` Mark Brown
2016-05-23 20:29         ` Rich Felker
2016-05-23 22:11           ` Mark Brown
2016-05-20  2:53 ` Rich Felker [this message]
2016-05-20  2:53 ` [PATCH v2 05/12] of: add J-Core SPI master bindings Rich Felker
2016-05-20  8:05   ` Geert Uytterhoeven
2016-05-23 21:00   ` Rob Herring
2016-05-23 21:06     ` Rich Felker
2016-05-23 23:16       ` Rob Herring

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