From: Anton Vorontsov <anton.vorontsov@linaro.org> To: Andrew Morton <akpm@linux-foundation.org>, Russell King <linux@arm.linux.org.uk>, Jason Wessel <jason.wessel@windriver.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Alan Cox <alan@linux.intel.com> Cc: "Arve Hjønnevåg" <arve@android.com>, "Colin Cross" <ccross@android.com>, "Brian Swetland" <swetland@google.com>, "John Stultz" <john.stultz@linaro.org>, "Thomas Gleixner" <tglx@linutronix.de>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linaro-kernel@lists.linaro.org, patches@linaro.org, kernel-team@android.com, kgdb-bugreport@lists.sourceforge.net, linux-serial@vger.kernel.org Subject: [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger Date: Wed, 19 Sep 2012 16:40:06 -0700 [thread overview] Message-ID: <20120919234003.GA24143@lizard> (raw) Hi all, In v8, addressed Jason's comments: - Changed kgdb_enable_nmi() weak function to kgdb_arch callbck; - We no longer register disable_nmi command if arch does not register KGDB NMI handling (i.e. not filling kgdb_arch.enable_nmi callback); - The same is for ttyNMI: if architecure does not provide us with enable_nmi call, we don't need the tty device. Of course, there is no way to tell wether a specific serial device can be used for NMI debugging, as it is not serial-device specific, but specific to whether IRQ can be rerouted to an NMI (for most our cases, pretty much every IRQ can be rerouted, e.g. a hot-pluggable serial device on a PCI bus). - Rebased on the latest and greatest tty-next, just in case. These patches can be found in the following repo (based on tty-next): git://git.infradead.org/users/cbou/linux-nmi-kdb.git master Old changelogs and rationale for these patches can be found here: v1-v5, rationale: http://lkml.org/lkml/2012/9/10/2 v6: http://lkml.org/lkml/2012/9/10/2 v7: http://lkml.org/lkml/2012/9/13/367 Thanks, -- arch/arm/Kconfig | 19 ++ arch/arm/common/vic.c | 28 +++ arch/arm/include/asm/hardware/vic.h | 2 + arch/arm/include/asm/kgdb.h | 8 + arch/arm/kernel/Makefile | 1 + arch/arm/kernel/entry-armv.S | 167 +------------ arch/arm/kernel/entry-header.S | 170 +++++++++++++ arch/arm/kernel/kgdb_fiq.c | 124 +++++++++ arch/arm/kernel/kgdb_fiq_entry.S | 87 +++++++ arch/arm/mach-versatile/Makefile | 1 + arch/arm/mach-versatile/kgdb_fiq.c | 31 +++ drivers/tty/serial/Kconfig | 19 ++ drivers/tty/serial/Makefile | 1 + drivers/tty/serial/amba-pl011.c | 73 +++++- drivers/tty/serial/kgdb_nmi.c | 402 ++++++++++++++++++++++++++++++ drivers/tty/serial/kgdboc.c | 9 + drivers/tty/serial/serial_core.c | 17 ++ include/linux/kdb.h | 29 ++- include/linux/kgdb.h | 13 + include/linux/serial_core.h | 1 + kernel/debug/debug_core.c | 14 +- kernel/debug/kdb/kdb_main.c | 31 +++ 22 files changed, 1054 insertions(+), 193 deletions(-)
WARNING: multiple messages have this Message-ID (diff)
From: anton.vorontsov@linaro.org (Anton Vorontsov) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger Date: Wed, 19 Sep 2012 16:40:06 -0700 [thread overview] Message-ID: <20120919234003.GA24143@lizard> (raw) Hi all, In v8, addressed Jason's comments: - Changed kgdb_enable_nmi() weak function to kgdb_arch callbck; - We no longer register disable_nmi command if arch does not register KGDB NMI handling (i.e. not filling kgdb_arch.enable_nmi callback); - The same is for ttyNMI: if architecure does not provide us with enable_nmi call, we don't need the tty device. Of course, there is no way to tell wether a specific serial device can be used for NMI debugging, as it is not serial-device specific, but specific to whether IRQ can be rerouted to an NMI (for most our cases, pretty much every IRQ can be rerouted, e.g. a hot-pluggable serial device on a PCI bus). - Rebased on the latest and greatest tty-next, just in case. These patches can be found in the following repo (based on tty-next): git://git.infradead.org/users/cbou/linux-nmi-kdb.git master Old changelogs and rationale for these patches can be found here: v1-v5, rationale: http://lkml.org/lkml/2012/9/10/2 v6: http://lkml.org/lkml/2012/9/10/2 v7: http://lkml.org/lkml/2012/9/13/367 Thanks, -- arch/arm/Kconfig | 19 ++ arch/arm/common/vic.c | 28 +++ arch/arm/include/asm/hardware/vic.h | 2 + arch/arm/include/asm/kgdb.h | 8 + arch/arm/kernel/Makefile | 1 + arch/arm/kernel/entry-armv.S | 167 +------------ arch/arm/kernel/entry-header.S | 170 +++++++++++++ arch/arm/kernel/kgdb_fiq.c | 124 +++++++++ arch/arm/kernel/kgdb_fiq_entry.S | 87 +++++++ arch/arm/mach-versatile/Makefile | 1 + arch/arm/mach-versatile/kgdb_fiq.c | 31 +++ drivers/tty/serial/Kconfig | 19 ++ drivers/tty/serial/Makefile | 1 + drivers/tty/serial/amba-pl011.c | 73 +++++- drivers/tty/serial/kgdb_nmi.c | 402 ++++++++++++++++++++++++++++++ drivers/tty/serial/kgdboc.c | 9 + drivers/tty/serial/serial_core.c | 17 ++ include/linux/kdb.h | 29 ++- include/linux/kgdb.h | 13 + include/linux/serial_core.h | 1 + kernel/debug/debug_core.c | 14 +- kernel/debug/kdb/kdb_main.c | 31 +++ 22 files changed, 1054 insertions(+), 193 deletions(-)
next reply other threads:[~2012-09-19 23:43 UTC|newest] Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-09-19 23:40 Anton Vorontsov [this message] 2012-09-19 23:40 ` [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger Anton Vorontsov 2012-09-19 23:41 ` [PATCH 01/11] kernel/debug: Mask KGDB NMI upon entry Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 02/11] kdb: Implement disable_nmi command Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 03/11] kdb: Turn KGDB_KDB=n stubs into static inlines Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 04/11] tty/serial/core: Introduce poll_init callback Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 05/11] tty/serial/amba-pl011: Implement " Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 06/11] tty/serial/amba-pl011: Quiesce interrupts in poll_get_char Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 07/11] tty/serial: Add kgdb_nmi driver Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-20 13:57 ` Jason Wessel 2012-09-20 13:57 ` Jason Wessel 2012-09-20 18:30 ` [PATCH updated " Anton Vorontsov 2012-09-20 18:30 ` Anton Vorontsov 2012-09-20 18:30 ` Anton Vorontsov 2012-09-19 23:41 ` [PATCH 08/11] ARM: Move some macros from entry-armv to entry-header Anton Vorontsov 2012-09-19 23:41 ` Anton Vorontsov 2012-09-19 23:42 ` [PATCH 09/11] ARM: Add KGDB/KDB FIQ debugger generic code Anton Vorontsov 2012-09-19 23:42 ` Anton Vorontsov 2012-09-19 23:42 ` Anton Vorontsov 2012-09-19 23:42 ` [PATCH 10/11] ARM: VIC: Add a couple of low-level FIQ management helpers Anton Vorontsov 2012-09-19 23:42 ` Anton Vorontsov 2012-09-19 23:42 ` [PATCH 11/11] ARM: versatile: Make able to use UART ports for KGDB FIQ debugger Anton Vorontsov 2012-09-19 23:42 ` Anton Vorontsov 2012-09-20 13:40 ` [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger Jason Wessel 2012-09-20 13:40 ` Jason Wessel 2012-09-20 13:40 ` Jason Wessel 2012-09-24 10:46 ` Jason Wessel 2012-09-24 10:46 ` Jason Wessel 2012-09-24 21:25 ` Anton Vorontsov 2012-09-24 21:25 ` Anton Vorontsov
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