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2012-05-18sh: sh7710/sh7712 evt2irq migration.Paul Mundt1-6/+7
Migrate SH7710/SH7712 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7706/sh7707/sh7709/sh7709 evt2irq migration.Paul Mundt1-7/+8
Migrate SH770x to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7705 evt2irq migration.Paul Mundt1-6/+7
Migrate SH7705 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7760 evt2irq migration.Paul Mundt1-7/+19
Migrate SH7760 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7750 evt2irq migration.Paul Mundt1-8/+9
Migrate SH7750 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh4-202 evt2irq migration.Paul Mundt1-4/+8
Migrate SH4-202 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh-x3 evt2irq migration.Paul Mundt1-9/+19
Migrate SH-X3 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7785 evt2irq migration.Paul Mundt1-18/+25
Migrate SH7785 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7780 evt2irq migration.Paul Mundt1-15/+22
Migrate SH7780 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7770 evt2irq migration.Paul Mundt1-19/+20
Migrate SH7770 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7763 evt2irq migration.Paul Mundt1-14/+16
Migrate SH7763 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7757 evt2irq migration.Paul Mundt1-44/+44
Migrate SH7757 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7724 evt2irq migration.Paul Mundt1-38/+39
Migrate SH7724 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7723 evt2irq migration.Paul Mundt1-23/+24
Migrate SH7723 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7722 evt2irq migration.Paul Mundt1-23/+24
Migrate SH7722 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7366 evt2irq migration.Paul Mundt1-11/+12
Migrate SH7366 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7343 evt2irq migration.Paul Mundt1-15/+16
Migrate SH7343 to evt2irq() backed hwirq lookups. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-18sh: sh7786 evt2irq migration.Paul Mundt1-22/+25
This migrates SH7786 to evt2irq() backed hwirq lookup rather than using an open-coded calculation. This will make it possible to reposition the vector base at a later point in time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-17sh: Fix mistake of the member variable of plat_sci_port for SH7343Nobuhiro Iwamatsu1-1/+1
The current code was going to initialize irq of plat_sci_port. Not irq, irqs is right. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-16fork: move the real prepare_to_copy() users to arch_dup_task_struct()Suresh Siddha2-9/+7
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of the architectures and the rest following the x86 model of flushing the extended register state like fpu there. Remove it and use the arch_dup_task_struct() instead. Suggested-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-05-14sh64: Invert page fault fast-path error path values.Paul Mundt1-1/+1
This brings the sh64 version in line with the sh32 one with regards to how errors are handled. Base work for further unification of the implementations. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-14sh64: Utilize thread fault code encoding.Paul Mundt1-11/+9
This plugs in fault code encoding for the sh64 page fault, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-14sh: Support thread fault code encoding.Paul Mundt1-5/+6
This provides a simple interface modelled after sparc64/m32r to encode the error code in the upper byte of thread_info for finer-grained handling in the page fault path. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10sh: Fix up comment noise in sh7269 pinmux code.Paul Mundt1-1/+2
The build complains about a /* nested within a comment block, so just tidy up the formatting. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10Merge branches 'sh/wdt' and 'sh/rsk-updates' into sh-latestPaul Mundt6-1/+3604
Conflicts: arch/sh/Kconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10sh: Add pinmux for sh7269Phil Edworthy2-0/+2800
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10sh: Add sh7269 devicePhil Edworthy5-1/+804
This is an sh2a device (max 266MHz) with FPU, video display controller (VDC), 8 serial ports, 4 I2C channels, 3 CAN ports, SD and on-chip USB. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10Merge branch 'sh/rsk-updates' into sh-latestPaul Mundt6-0/+2901
Conflicts: arch/sh/Kconfig Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10sh: Add pinmux for sh7264Phil Edworthy2-0/+2137
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-10sh: Add sh7264 devicePhil Edworthy5-0/+764
This is an sh2a device with FPU, video display controller (VDC), 8 serial ports, 3 I2C channels, 2 CAN ports, SD and on-chip USB. Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-08sh-use-common-threadinfo-allocatorThomas Gleixner1-44/+2
The core now has a threadinfo allocator which uses a kmemcache when THREAD_SIZE < PAGE_SIZE. Deal with the xstate cleanup in the new arch_release_task_struct() function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120505150142.189348931@linutronix.de
2012-05-08sh: Remove cpu_idle_wait()Thomas Gleixner1-20/+0
cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120507175652.461648208@linutronix.de
2012-05-05sh: Use generic init_taskThomas Gleixner2-31/+1
Same code. Use the generic version. The special Makefile treatment is pointless anyway as init_task.o contains only data which is handled by the linker script. So no point on being treated like head text. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120503085035.398257169@linutronix.de
2012-04-26sh: Use generic idle thread allocationThomas Gleixner1-13/+1
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120420124557.855203626@linutronix.de
2012-04-26smp: Add task_struct argument to __cpu_up()Thomas Gleixner1-1/+1
Preparatory patch to make the idle thread allocation for secondary cpus generic. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: David S. Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Richard Weinberger <richard@nod.at> Cc: x86@kernel.org Link: http://lkml.kernel.org/r/20120420124556.964170564@linutronix.de
2012-04-19sh64: Kill off unused trap_no/error_code from thread_struct.Paul Mundt2-5/+0
While the trap number and error code are passed around for debugging purposes, this occurs wholly independently of the thread struct values. These values were never part of the sigcontext ABI and are thus never passed anywhere, so we can just kill them off across the board. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-19Merge branches 'sh/st-integration' and 'sh/stackprotector' into sh-latestPaul Mundt2-0/+12
2012-04-19sh: initial stack protector support.Filippo Arcidiacono2-0/+12
This implements basic -fstack-protector support, based on the early ARM version in c743f38013aeff58ef6252601e397b5ba281c633. The SMP case is limited to the initial canary value, while the UP case handles per-task granularity (limited to 32-bit sh until a new enough sh64 compiler manifests itself). Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Reviewed-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-18seccomp: ignore secure_computing return valuesWill Drewry2-2/+2
This change is inspired by https://lkml.org/lkml/2012/4/16/14 which fixes the build warnings for arches that don't support CONFIG_HAVE_ARCH_SECCOMP_FILTER. In particular, there is no requirement for the return value of secure_computing() to be checked unless the architecture supports seccomp filter. Instead of silencing the warnings with (void) a new static inline is added to encode the expected behavior in a compiler and human friendly way. v2: - cleans things up with a static inline - removes sfr's signed-off-by since it is a different approach v1: - matches sfr's original change Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Will Drewry <wad@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: James Morris <james.l.morris@oracle.com>
2012-04-17Merge branch 'sh/kgdb' into sh-latestPaul Mundt1-23/+82
2012-04-17sh: Add support pinmux for SH7734Nobuhiro Iwamatsu2-0/+2498
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17sh: Add initial support for SH7734 CPU subtypeNobuhiro Iwamatsu5-1/+1073
This implements initial support for the SH7734. This adds support SCIF, TMU and RTC. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17sh: sh2: Change the specification method of IRQ to SCIx_IRQ_MUXEDNobuhiro Iwamatsu5-20/+20
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this. This is correction to the SH2/SH2A series. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17sh: sh3: Change the specification method of IRQ to SCIx_IRQ_MUXEDNobuhiro Iwamatsu4-9/+9
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this. And change use to evt2irq(), without specifying the value of IRQ directly. This is correction to the SH3 series. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17sh: sh4: Change the specification method of IRQ to SCIx_IRQ_MUXEDNobuhiro Iwamatsu1-2/+2
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this. And change use to evt2irq(), without specifying the value of IRQ directly. This is correction to the SH4 series. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-17sh: sh4a: Change the specification method of IRQ to SCIx_IRQ_MUXEDNobuhiro Iwamatsu10-44/+44
Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this. And change use to evt2irq(), without specifying the value of IRQ directly. This is correction to the SH4A series. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10sh: kgdb: Fix up NULL pointer deref by kgdb_nmicallback.Paul Mundt1-1/+1
kgdb_nmicallback expects valid register state, so just fetch the register state with get_irq_regs() as on other platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10sh: kgdb: Fill out sleeping_thread_to_gdb_regs() state.Paul Mundt1-0/+23
Presently we're using a pretty dumbed-down implementation that copies over register state visible from the thread info, leaving the bulk of the switch_to state uncopied. Given that we're also depending on register bank toggling for switch_to optimization we ought to also explicitly zero out the GP regs that reside in an alternate bank in order to prevent handing back garbage. There are a few extra registers that we have state for in switch_to, so copy those over while we're at it. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10sh: kgdb: Individual register get/set support.Paul Mundt1-23/+47
This updates sh following the generic kgdb changes adding support for individual register get/set for kgdb/kdb use. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-04-10sh: kgdb: Fix up basic SMP support.Paul Mundt1-0/+12
kgdb needs a kgdb_roundup_cpus() definition in the architecture backend, so just copy over the MIPS version, which already does what we want. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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