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* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-302-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-131-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (56 commits) doc: fix typo in comment explaining rb_tree usage Remove fs/ntfs/ChangeLog doc: fix console doc typo doc: cpuset: Update the cpuset flag file Fix of spelling in arch/sparc/kernel/leon_kernel.c no longer needed Remove drivers/parport/ChangeLog Remove drivers/char/ChangeLog doc: typo - Table 1-2 should refer to "status", not "statm" tree-wide: fix typos "ass?o[sc]iac?te" -> "associate" in comments No need to patch AMD-provided drivers/gpu/drm/radeon/atombios.h devres/irq: Fix devm_irq_match comment Remove reference to kthread_create_on_cpu tree-wide: Assorted spelling fixes tree-wide: fix 'lenght' typo in comments and code drm/kms: fix spelling in error message doc: capitalization and other minor fixes in pnp doc devres: typo fix s/dev/devm/ Remove redundant trailing semicolons from macros fix typo "definetly" -> "definitely" in comment tree-wide: s/widht/width/g typo in comments ... Fix trivial conflict in Documentation/laptops/00-INDEX
| * Merge branch 'for-next' into for-linusJiri Kosina2010-03-081-1/+1
| |\ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| | * fix typos "precidence" -> "precedence" in commentsUwe Kleine-König2010-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was generated by git grep -E -i -l 'precidence' | xargs -r perl -p -i -e 's/precidence/precedence/' Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Driver core: Constify struct sysfs_ops in struct kobj_typeEmese Revfy2010-03-081-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Constify struct sysfs_ops. This is part of the ops structure constification effort started by Arjan van de Ven et al. Benefits of this constification: * prevents modification of data that is shared (referenced) by many other structure instances at runtime * detects/prevents accidental (but not intentional) modification attempts on archs that enforce read-only kernel data at runtime * potentially better optimized code as the compiler can assume that the const data cannot be changed * the compiler/linker move const data into .rodata and therefore exclude them from false sharing Signed-off-by: Emese Revfy <re.emese@gmail.com> Acked-by: David Teigland <teigland@redhat.com> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Acked-by: Hans J. Koch <hjk@linutronix.de> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Jens Axboe <jens.axboe@oracle.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | sh: activate runtime PM for dmaengine on sh7722 and sh7724Guennadi Liakhovetski2010-03-022-0/+9
| | | | | | | | | | Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | dmaengine: shdma: separate DMA headers.Guennadi Liakhovetski2010-03-024-7/+76
| | | | | | | | | | | | | | | | | | | | Separate SH DMA headers into ones, commonly used by both drivers, and ones, specific to each of them. This will make the future development of the dmaengine driver easier. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | dmaengine: shdma: convert to platform device resourcesGuennadi Liakhovetski2010-03-024-23/+432
| | | | | | | | | | | | | | | | | | | | | | The shdma dmaengine driver currently uses numerous macros to support various platforms, selected by ifdef's. Convert it to use platform device resources and lists of channel descriptors to specify register locations, interrupt numbers and other system-specific configuration variants. Unavoidably, we have to simultaneously convert all shdma users to provide those resources. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: add DMA slave definitions and SIU platform data to sh7722 setupGuennadi Liakhovetski2010-03-021-6/+97
| | | | | | | | | | | | | | This patch is required to use the SIU ASoC driver on sh7722 systems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: SH-Mobile R-standby register save/restoreMagnus Damm2010-02-262-3/+121
| | | | | | | | | | | | | | | | Add code to save/restore registers during R-standby sleep on SH-Mobile processors. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: always enable sh7724 vpu_clk and set to 166MHz on EcovecMagnus Damm2010-02-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Update the sh7724 processor code to always enable vpu_clk. On the Ecovec board, set the vpu_clk to 166 Mhz. The 166MHz setting results in a divide-by-6 setup for vpu_clk and improves the VPU performance compared to the power-on-reset/bootloader configuration. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: add sh7724 kick callback to clk_div4_tableMagnus Damm2010-02-222-0/+15
| | | | | | | | | | | | | | | | | | | | | | This patch adds a ->kick() callback to clk_div4_table and ties it into sh_clk_div4_set_rate(). A sh7724 specific kick function is also added that updates the KICK bit whenever div4 clocks in FRQCRA and FRQCRB have been set. Allows us to set the VPU clock. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: introduce struct clk_div4_tableMagnus Damm2010-02-228-14/+44
| | | | | | | | | | | | | | | | | | | | This patch introduces struct clk_div4_table. The structure will be used to keep div4 specific data, and is with this patch replacing the struct clk_div_mult_table pointer arg used by the sh_clk_div4_register() functions. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: clock-cpg div4 set_rate() shift fixMagnus Damm2010-02-221-2/+2
| | | | | | | | | | | | | | | | Make sure the div4 bitfield is shifted according to the enable_bit value in sh_clk_div4_set_rate(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'sh/pmb-dynamic'Paul Mundt2010-02-182-11/+23
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| * | sh: Fix up more 64-bit pgprot truncation on SH-X2 TLB.Paul Mundt2010-02-171-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both the store queue API and the PMB remapping take unsigned long for their pgprot flags, which cuts off the extended protection bits. In the case of the PMB this isn't really a problem since the cache attribute bits that we care about are all in the lower 32-bits, but we do it just to be safe. The store queue remapping on the other hand depends on the extended prot bits for enabling userspace access to the mappings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Setup boot CPU VBR early to enable early page faults.Paul Mundt2010-02-171-4/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | vmemmap and the vmsplit code amongst others need to be able to take page faults much earlier than trap_init() time, so move this in to the early CPU initialization. VBR setup for secondary CPUs is already handled through start_secondary(), so we only need to do this for the boot CPU. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | sh: fix sh7723 SDHI support using INTC force_disableMagnus Damm2010-02-171-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the sh7723 INTC tables with force_enable support to mask out pending unsupported SDHI interrupt sources. Without this patch the kernel locks up due to a pending SDHI interrupt that the tmio_mmc driver cannot handle. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | sh: fix sh7722 SDHI support using INTC force_disableMagnus Damm2010-02-171-1/+3
|/ / | | | | | | | | | | | | | | | | | | | | Update the sh7722 INTC tables with force_enable support to mask out pending unsupported SDHI interrupt sources. Without this patch the kernel locks up due to a pending SDHI interrupt that the tmio_mmc driver cannot handle. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: fix sh7724 SDHI support using INTC force_disableMagnus Damm2010-02-161-2/+4
| | | | | | | | | | | | | | | | | | | | | | Update the sh7724 INTC tables with force_enable support to mask out pending unsupported SDHI interrupt sources. Without this patch the kernel locks up due to a pending SDHI interrupt that the tmio_mmc driver cannot handle. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: break out enable/reparent div4 clocks on sh7723Magnus Damm2010-02-091-4/+20
| | | | | | | | | | | | | | | | | | Break out sh7723 div4 clocks for SIU and IRDA as reparent / enable clocks. Similar to the SIU clock patch for sh7722 by Guennadi. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: sh7724/Ecovec24/KFR2R09/MS7724SE SDHI vector mergeMagnus Damm2010-02-091-16/+16
| | | | | | | | | | | | | | | | | | Merge the SDHI vectors in the sh7724 INTC table and update the SDHI platform data for Ecovec24, KFR2R09 and MS7724SE. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: sh7723/AP325 SDHI vector mergeMagnus Damm2010-02-091-15/+17
| | | | | | | | | | | | | | | | Merge the SDHI vectors in the sh7723 INTC table and update the SDHI platform data for AP325. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: sh7722/Migo-R SDHI vector mergeMagnus Damm2010-02-091-8/+10
| | | | | | | | | | | | | | | | Merge the SDHI vectors in the sh7722 INTC table and update the SDHI platform data for Migo-R. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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*-. | Merge branches 'sh/dwarf-unwinder', 'sh/g3-prep' and 'sh/stable-updates'Paul Mundt2010-02-081-1/+2
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| * | sh: Remove superfluous setup_frame_reg callMatt Fleming2010-02-081-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to setup the frame pointer again in call_handle_tlbmiss. The frame pointer will already have been setup in handle_interrupt. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | sh: Setup frame pointer in handle_exception pathMatt Fleming2010-02-081-0/+2
| |/ | | | | | | | | | | | | | | In order to allow the DWARF unwinder to unwind through exceptions we need to setup the frame pointer register (r14). Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: add high impedance mode management for SIUA pins on sh7722Guennadi Liakhovetski2010-02-021-10/+11
| | | | | | | | | | | | | | | | | | This improves power management for the SIUA controller on sh7722. Similar patches might be desired for other SIU-enabled SH platforms. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'sh/stable-updates'Paul Mundt2010-02-021-2/+2
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| * sh: Fix access to released memory in clk_debugfs_register_one()Marek Skuczynski2010-02-021-2/+2
| | | | | | | | | | Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Mass ctrl_in/outX to __raw_read/writeX conversion.Paul Mundt2010-01-2636-189/+189
| | | | | | | | | | | | | | | | | | | | | | The old ctrl in/out routines are non-portable and unsuitable for cross-platform use. While drivers/sh has already been sanitized, there is still quite a lot of code that is not. This converts the arch/sh/ bits over, which permits us to flag the routines as deprecated whilst still building with -Werror for the architecture code, and to ensure that future users are not added. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Kill off the special uncached section and fixmap.Paul Mundt2010-01-214-5/+7
| | | | | | | | | | | | | | | | Now that cached_to_uncached works as advertized in 32-bit mode and we're never going to be able to map < 16MB anyways, there's no need for the special uncached section. Kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Handle SH-4 FPU variants with broken CVR values.Paul Mundt2010-01-191-2/+3
| | | | | | | | | | | | | | | | | | Usually we can look to the CVR to work out whether we have an FPU or not. Unfortunately not all parts comply with this, so just set the flag manually for all SH-4 parts and clear it on the only SH-4 that doesn't have one (SH4-501). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: support SIU sourcing from external clock on sh7722Guennadi Liakhovetski2010-01-192-7/+112
| | | | | | | | | | | | | | | | | | | | Implement .set_rate() for all SH "div4 clocks," .enable(), .disable(), and .set_parent() for those, that support them. This allows, among other uses, reparenting of SIU clocks to the external source, and enabling and disabling of the IrDA clock on sh7722. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: SH7786 clock framework rewrite.Paul Mundt2010-01-191-96/+88
| | | | | | | | | | | | | | | | | | This rewrites the SH7786 clock framework support completely. It's reworked to provide all of the DIV4 and MSTP function clocks. This brings it in line with the current clock framework code and lets us drop SH7786 from the list of CPUs that require legacy CPG handling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh64: Fixup build breakage from breakpoint handler rename.Paul Mundt2010-01-191-1/+1
| | | | | | | | | | | | | | The breakpoint handler was renamed on sh32, but sh64 was overlooked in the conversion. Fix it up now. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh64: Use the shared FPU state restorer.Paul Mundt2010-01-192-60/+7
| | | | | | | | | | | | | | This kills off the sh64-specific state restorer and switches over to the generic one. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh64: Fix up the build for the thread_xstate changes.Paul Mundt2010-01-191-6/+6
| | | | | | | | | | | | | | This updates the sh64 processor info with the sh32 changes in order to tie in to the generic task_xstate management code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Need IRQs enabled for init_fpu().Paul Mundt2010-01-181-0/+2
| | | | | | | | | | | | | | | | | | | | This tosses in a local_irq_enable()/disable() pair around the init_fpu() callsite in the FPU state restore exception handler. Fixes up a slab BUG triggered by making a slab cache allocation that can sleep whilst irqs_disabled(). This follows the behaviour undertaken by the x86 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Fix up the secondary CPU entry point for 32bit mode.Paul Mundt2010-01-151-1/+4
| | | | | | | | | | | | | | | | Presently the secondary CPU entry point is only aimed at 29bit phys mode, causing it to point to a stray virtual address in 32bit mode. Fix it up after consulting with our shiny new __in_29bit_mode(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Fix up L2 cache comment typo.Paul Mundt2010-01-131-1/+1
| | | | | | | | | | | | Valid sizes include 256kB, not 258kB. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: PVR detection for 2nd cut SH7786.Matt Fleming2010-01-131-0/+1
| | | | | | | | | | | | | | The mass produced cuts use an updated PVR value, add them to the list. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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*-. \ Merge branches 'sh/xstate', 'sh/hw-breakpoints' and 'sh/stable-updates'Paul Mundt2010-01-138-256/+340
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| | * sh: Kill off dead UBC headers.Paul Mundt2010-01-051-12/+8
| | | | | | | | | | | | | | | | | | Nothing is using these now, so kill them all off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * sh: Abstracted SH-4A UBC support on hw-breakpoint core.Paul Mundt2010-01-052-4/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the next big chunk of hw_breakpoint support. This decouples the SH-4A support from the core and moves it out in to its own stub, following many of the conventions established with the perf events layering. In addition to extending SH-4A support to encapsulate the remainder of the UBC channels, clock framework support for handling the UBC interface clock is added as well, allowing for dynamic clock gating. This also fixes up a regression introduced by the SIGTRAP handling that broke the ksym_tracer, to the extent that the current support works well with all of the ksym_tracer/ptrace/kgdb. The kprobes singlestep code will follow in turn. With this in place, the remaining UBC variants (SH-2A and SH-4) can now be trivially plugged in. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * Merge branch 'master' into sh/hw-breakpointsPaul Mundt2009-12-2127-768/+1497
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| | * Merge branch 'master' into sh/hw-breakpointsPaul Mundt2009-12-0819-375/+1202
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflict between FPU thread flag migration and debug thread flag addition. Conflicts: arch/sh/include/asm/thread_info.h arch/sh/include/asm/ubc.h arch/sh/kernel/process_32.c
| | * | sh: hw-breakpoints: Add preliminary support for SH-4A UBC.Paul Mundt2009-12-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds preliminary support for the SH-4A UBC to the hw-breakpoints API. Presently only a single channel is implemented, and the ptrace interface still needs to be converted. This is the first step to cleaning up the long-standing UBC mess, making the UBC more generally accessible, and finally making it SMP safe. An additional abstraction will be layered on top of this as with the perf events code to permit the various CPU families to wire up support for their own specific UBCs, as many variations exist. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: Move over to dynamically allocated FPU context.Paul Mundt2010-01-135-240/+194
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This follows the x86 xstate changes and implements a task_xstate slab cache that is dynamically sized to match one of hard FP/soft FP/FPU-less. This also tidies up and consolidates some of the SH-2A/SH-4 FPU fragmentation. Now fpu state restorers are commonly defined, with the init_fpu()/fpu_init() mess reworked to follow the x86 convention. The fpu_init() register initialization has been replaced by xstate setup followed by writing out to hardware via the standard restore path. As init_fpu() now performs a slab allocation a secondary lighterweight restorer is also introduced for the context switch. In the future the DSP state will be rolled in here, too. More work remains for math emulation and the SH-5 FPU, which presently uses its own special (UP-only) interfaces. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | sh: dmaengine support for SH7785Nobuhiro Iwamatsu2009-12-171-0/+14
| | | | | | | | | | | | | | | | | | | | | Add dmaengine platform device to SH7785. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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