From: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
To: Michael Neuling <mikey@neuling.org>
Cc: Michael R Meissner <mrmeissn@us.ibm.com>,
Steve Munroe <sjmunroe@us.ibm.com>,
Peter Bergner <bergner@us.ibm.com>,
Ryan Arnold <ryanarn@us.ibm.com>,
linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 1/4] powerpc/cputable: reserve bits in HWCAP2 for new features
Date: Fri, 3 May 2013 17:47:56 -0700 [thread overview]
Message-ID: <20130504004756.GA3532@linux.vnet.ibm.com> (raw)
In-Reply-To: <2889.1367625894@ale.ozlabs.ibm.com>
Also, make HTM's presence dependent on the .config option.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
---
Changes since v1:
- Add TAR.
- Make HTM config dependent.
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index fcc54ad..26807e5 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -224,8 +224,10 @@ extern const char *powerpc_base_platform;
/* We only set the TM feature if the kernel was compiled with TM supprt */
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
#define CPU_FTR_TM_COMP CPU_FTR_TM
+#define PPC_FEATURE2_HTM_COMP PPC_FEATURE2_HTM
#else
#define CPU_FTR_TM_COMP 0
+#define PPC_FEATURE2_HTM_COMP 0
#endif
/* We need to mark all pages as being coherent if we're SMP or we have a
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index ed9dd81..5b76579 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -1,6 +1,7 @@
#ifndef _UAPI__ASM_POWERPC_CPUTABLE_H
#define _UAPI__ASM_POWERPC_CPUTABLE_H
+/* in AT_HWCAP */
#define PPC_FEATURE_32 0x80000000
#define PPC_FEATURE_64 0x40000000
#define PPC_FEATURE_601_INSTR 0x20000000
@@ -33,4 +34,12 @@
#define PPC_FEATURE_TRUE_LE 0x00000002
#define PPC_FEATURE_PPC_LE 0x00000001
+/* in AT_HWCAP2 */
+#define PPC_FEATURE2_ARCH_2_07 0x80000000
+#define PPC_FEATURE2_HTM 0x40000000
+#define PPC_FEATURE2_DSCR 0x20000000
+#define PPC_FEATURE2_EBB 0x10000000
+#define PPC_FEATURE2_ISEL 0x08000000
+#define PPC_FEATURE2_TAR 0x04000000
+
#endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */
next prev parent reply other threads:[~2013-05-04 0:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-03 23:19 [PATCH] arch/powerpc: advertise ISA2.07, HTM, DSCR, EBB and ISEL bits in HWCAP2 Nishanth Aravamudan
2013-05-03 23:23 ` Benjamin Herrenschmidt
2013-05-03 23:40 ` Nishanth Aravamudan
2013-05-06 14:38 ` Ryan Arnold
2013-05-06 21:37 ` Benjamin Herrenschmidt
2013-05-07 15:11 ` Ryan Arnold
2013-05-07 20:33 ` Nishanth Aravamudan
2013-05-07 20:49 ` Benjamin Herrenschmidt
2013-05-07 21:11 ` Nishanth Aravamudan
2013-05-03 23:26 ` Michael R Meissner
2013-05-04 21:42 ` Segher Boessenkool
2013-05-04 0:04 ` Michael Neuling
2013-05-04 0:47 ` Nishanth Aravamudan [this message]
2013-05-04 0:48 ` [PATCH v2 2/4] powerpc/cputable: advertise DSCR support on P7/P7+ Nishanth Aravamudan
2013-05-04 0:49 ` [PATCH v2 3/4] powerpc/cputable: advertise ISEL support on appropriate embedded processors Nishanth Aravamudan
2013-05-04 0:49 ` [PATCH v2 4/4] powerpc/cputable: advertise support for ISEL/HTM/DSCR/TAR on POWER8 Nishanth Aravamudan
2013-05-05 2:01 ` [PATCH v3 3/4] powerpc/cputable: advertise ISEL support on appropriate embedded processors Nishanth Aravamudan
2013-05-20 15:04 ` [PATCH v2 2/4] powerpc/cputable: advertise DSCR support on P7/P7+ Will Schmidt
2013-05-20 23:41 ` Michael Neuling
2013-05-06 19:07 ` [PATCH v2 1/4] powerpc/cputable: reserve bits in HWCAP2 for new features Ryan Arnold
2013-05-06 21:41 ` Benjamin Herrenschmidt
2013-05-07 15:07 ` Ryan Arnold
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