From: Michael Ellerman <mpe@ellerman.id.au>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org
Cc: shuahkh@osg.samsung.com, mikey@neuling.org,
james.hogan@imgtec.com, avagin@openvz.org,
Paul.Clothier@imgtec.com, peterz@infradead.org,
palves@redhat.com, oleg@redhat.com, davem@davemloft.net,
dhowells@redhat.com, kirjanov@gmail.com, davej@redhat.com,
akpm@linux-foundation.org, sukadev@linux.vnet.ibm.com,
tglx@linutronix.de, sam.bobroff@au1.ibm.com
Subject: Re: [V6,1/9] elf: Add new powerpc specifc core note sections
Date: Wed, 3 Dec 2014 16:22:04 +1100 (AEDT) [thread overview]
Message-ID: <20141203052204.9DA8F1400DD@ozlabs.org> (raw)
In-Reply-To: <1417507013-11948-2-git-send-email-khandual@linux.vnet.ibm.com>
On Tue, 2014-02-12 at 07:56:45 UTC, Anshuman Khandual wrote:
> This patch adds four new ELF core note sections for powerpc
> transactional memory and one new ELF core note section for
> powerpc general miscellaneous debug registers. These addition
> of new ELF core note sections extends the existing ELF ABI
> without affecting it in any manner.
>
> Acked-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
> ---
> include/uapi/linux/elf.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
> index ea9bf25..2260fc0 100644
> --- a/include/uapi/linux/elf.h
> +++ b/include/uapi/linux/elf.h
> @@ -379,6 +379,11 @@ typedef struct elf64_shdr {
> #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
> #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
> #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
> +#define NT_PPC_TM_SPR 0x103 /* PowerPC TM special registers */
> +#define NT_PPC_TM_CGPR 0x104 /* PowerpC TM checkpointed GPR */
> +#define NT_PPC_TM_CFPR 0x105 /* PowerPC TM checkpointed FPR */
> +#define NT_PPC_TM_CVMX 0x106 /* PowerPC TM checkpointed VMX */
> +#define NT_PPC_MISC 0x107 /* PowerPC miscellaneous registers */
This is a really terrible name, "MISC".
Having said that, I guess it's accurate. We have a whole bunch of regs that
have accrued over recent years that aren't accessible via ptrace.
It seems to me if we're adding a misc regset we should be adding everything we
might want to it that is currenty architected.
But currently you only include the PPR, TAR & DSCR.
Looking at Power ISA v2.07, I see the following that could be included:
MMCR2
MMCRA
PMC1
PMC2
PMC3
PMC4
PMC5
PMC6
MMCR0
EBBHR
EBBRR
BESCR
SIAR
SDAR
CFAR?
Those are all new in 2.07 except for CFAR.
There might be more I missed, that was just a quick scan.
Some are only accessible when EBB is in use, maybe those could be a separate
regset.
cheers
WARNING: multiple messages have this Message-ID (diff)
From: Michael Ellerman <mpe@ellerman.id.au>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org
Cc: mikey@neuling.org, james.hogan@imgtec.com, avagin@openvz.org,
Paul.Clothier@imgtec.com, peterz@infradead.org,
palves@redhat.com, shuahkh@osg.samsung.com, oleg@redhat.com,
dhowells@redhat.com, kirjanov@gmail.com, tglx@linutronix.de,
davej@redhat.com, akpm@linux-foundation.org,
sukadev@linux.vnet.ibm.com, davem@davemloft.net,
sam.bobroff@au1.ibm.com
Subject: Re: [V6,1/9] elf: Add new powerpc specifc core note sections
Date: Wed, 3 Dec 2014 16:22:04 +1100 (AEDT) [thread overview]
Message-ID: <20141203052204.9DA8F1400DD@ozlabs.org> (raw)
In-Reply-To: <1417507013-11948-2-git-send-email-khandual@linux.vnet.ibm.com>
On Tue, 2014-02-12 at 07:56:45 UTC, Anshuman Khandual wrote:
> This patch adds four new ELF core note sections for powerpc
> transactional memory and one new ELF core note section for
> powerpc general miscellaneous debug registers. These addition
> of new ELF core note sections extends the existing ELF ABI
> without affecting it in any manner.
>
> Acked-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
> ---
> include/uapi/linux/elf.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
> index ea9bf25..2260fc0 100644
> --- a/include/uapi/linux/elf.h
> +++ b/include/uapi/linux/elf.h
> @@ -379,6 +379,11 @@ typedef struct elf64_shdr {
> #define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
> #define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
> #define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
> +#define NT_PPC_TM_SPR 0x103 /* PowerPC TM special registers */
> +#define NT_PPC_TM_CGPR 0x104 /* PowerpC TM checkpointed GPR */
> +#define NT_PPC_TM_CFPR 0x105 /* PowerPC TM checkpointed FPR */
> +#define NT_PPC_TM_CVMX 0x106 /* PowerPC TM checkpointed VMX */
> +#define NT_PPC_MISC 0x107 /* PowerPC miscellaneous registers */
This is a really terrible name, "MISC".
Having said that, I guess it's accurate. We have a whole bunch of regs that
have accrued over recent years that aren't accessible via ptrace.
It seems to me if we're adding a misc regset we should be adding everything we
might want to it that is currenty architected.
But currently you only include the PPR, TAR & DSCR.
Looking at Power ISA v2.07, I see the following that could be included:
MMCR2
MMCRA
PMC1
PMC2
PMC3
PMC4
PMC5
PMC6
MMCR0
EBBHR
EBBRR
BESCR
SIAR
SDAR
CFAR?
Those are all new in 2.07 except for CFAR.
There might be more I missed, that was just a quick scan.
Some are only accessible when EBB is in use, maybe those could be a separate
regset.
cheers
next prev parent reply other threads:[~2014-12-03 5:22 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-02 7:56 [PATCH V6 0/9] Add new powerpc specific ELF core notes Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 1/9] elf: Add new powerpc specifc core note sections Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-03 5:22 ` Michael Ellerman [this message]
2014-12-03 5:22 ` [V6,1/9] " Michael Ellerman
2014-12-03 6:48 ` Anshuman Khandual
2014-12-03 6:48 ` Anshuman Khandual
2014-12-08 10:08 ` Anshuman Khandual
2014-12-08 10:08 ` Anshuman Khandual
2014-12-19 19:28 ` Edjunior Barbosa Machado
2014-12-19 19:28 ` Edjunior Barbosa Machado
2015-01-01 8:08 ` Anshuman Khandual
2015-01-01 8:08 ` Anshuman Khandual
2015-01-14 4:44 ` Anshuman Khandual
2015-01-14 4:44 ` Anshuman Khandual
2015-01-21 23:39 ` Michael Neuling
2015-01-21 23:39 ` Michael Neuling
2015-01-22 15:55 ` Ulrich Weigand
2015-01-22 15:55 ` Ulrich Weigand
2015-01-22 21:44 ` Michael Neuling
2015-01-22 21:44 ` Michael Neuling
2015-01-28 4:28 ` Michael Neuling
2015-01-28 4:28 ` Michael Neuling
2015-02-06 14:47 ` Ulrich Weigand
2015-02-06 14:47 ` Ulrich Weigand
2015-02-23 4:51 ` Michael Neuling
2015-02-23 4:51 ` Michael Neuling
2015-03-18 12:53 ` Ulrich Weigand
2015-03-18 12:53 ` Ulrich Weigand
2015-03-18 22:45 ` Michael Neuling
2015-03-18 22:45 ` Michael Neuling
2015-03-18 22:50 ` Michael Neuling
2015-03-18 22:50 ` Michael Neuling
2015-03-23 10:34 ` Anshuman Khandual
2015-03-23 10:34 ` Anshuman Khandual
2015-04-08 17:50 ` Ulrich Weigand
2015-04-08 17:50 ` Ulrich Weigand
2015-04-08 23:11 ` Michael Neuling
2015-04-08 23:11 ` Michael Neuling
2015-04-09 12:50 ` Anshuman Khandual
2015-04-09 12:50 ` Anshuman Khandual
2015-04-10 3:03 ` Michael Neuling
2015-04-10 3:03 ` Michael Neuling
2015-04-10 9:10 ` Anshuman Khandual
2015-04-10 9:10 ` Anshuman Khandual
2015-04-10 10:33 ` Ulrich Weigand
2015-04-10 10:33 ` Ulrich Weigand
2015-04-13 8:48 ` Anshuman Khandual
2015-04-13 8:48 ` Anshuman Khandual
2015-04-20 6:42 ` Anshuman Khandual
2015-04-20 6:42 ` Anshuman Khandual
2015-04-20 12:27 ` Ulrich Weigand
2015-04-20 12:27 ` Ulrich Weigand
2015-04-21 4:55 ` Anshuman Khandual
2015-04-21 4:55 ` Anshuman Khandual
2015-04-21 14:41 ` Ulrich Weigand
2015-04-21 14:41 ` Ulrich Weigand
2015-04-22 9:24 ` Anshuman Khandual
2015-04-22 9:24 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 2/9] powerpc, process: Add the function flush_tmregs_to_thread Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 3/9] powerpc, ptrace: Enable fpr_(get/set) for transactional memory Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 4/9] powerpc, ptrace: Enable vr_(get/set) " Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 5/9] powerpc, ptrace: Enable support for transactional memory register sets Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 6/9] powerpc, ptrace: Enable support for miscellaneous debug registers Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 7/9] selftests, powerpc: Add test case for TM related ptrace interface Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 8/9] selftests, powerpc: Make GIT ignore all binaries related to TM Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 7:56 ` [PATCH V6 9/9] selftests: Make GIT ignore all binaries in powerpc test suite Anshuman Khandual
2014-12-02 7:56 ` Anshuman Khandual
2014-12-02 18:23 ` Shuah Khan
2014-12-02 18:23 ` Shuah Khan
2014-12-03 5:46 ` Anshuman Khandual
2014-12-03 5:46 ` Anshuman Khandual
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