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| | * | | | | | sh: LED9, LED10 and LED11 support for Solution Engine 7724Magnus Damm2009-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for LED9, LED10 and LED11 on the Solution Engine 7724 board. If CONFIG_PM is enabled then these LEDs are used to show the hardware sleep mode used by the processor. Useful to debug cpuidle. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: kfr2r09 board support - NAND flashMagnus Damm2009-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the NAND flash chip attached to CS4 on the KFR2R09 board. The device is driven by the platform device driver "onenand-flash". Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: kfr2r09 board support - LCDC panelMagnus Damm2009-08-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the WQVGA LCD display used by the KFR2R09 board. The LCD module is a TX07D34VM0AAA made by Hitachi, and this module is made up by a R61517 chip together with a 240x400 pixel display. The screen is attached to the SuperH Mobile LCDC using a 18-bit SYS bus. The register settings used by the SYS panel setup code are based on an out-of-tree driver which apart from duplicating all LCDC driver code and writing to non-existing hardware registers also never was posted for upstream merge. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: convert to asm-generic/hardirq.hChristoph Hellwig2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: Fix up early printk build error.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Missing endif in the early printk case, fix it up.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: Add SH7724 DMAC support.Kuninori Morimoto2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: ms7724se: add 1280x720 lcdc output supportKuninori Morimoto2009-08-04
| | | |_|/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was no big meaning in the support of SVGA, but 720p support is necessary for ms7724se board. So, this patch support 720p instead of SVGA. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: clean up MSTPCRn register definitionsMagnus Damm2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the unused MSTPCRn register definitions from the SuperH Mobile code for sh7722, sh7723 and sh7724. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: hwblk support for sh7724Magnus Damm2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds hwblk support for the sh7724 processor. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Add early printk support for SH770x CPUs.Rafael Ignacio Zurita2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds early printk support for SH770x (tested on SH7709 based hp6xx). Signed-off-by: Rafael Ignacio Zurita <rizurita@yahoo.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Add romImage target to archhelp.Paul Mundt2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds an archhelp blurb for the romImage target so it is reflected in 'make help'. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: kfr2r09 romImage support V2Magnus Damm2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is romImage support for the kfr2r09 board V2. The partner-jet-setup.txt file is converted into assembly code which becomes the first code to execute from the reset vector. The file partner-jet-setup.txt can also be used to setup the hardware using a JTAG debugger so booting from RAM can be done without burning the code to flash. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: romImage support V2Magnus Damm2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains support for the romImage build target V2. The resulting romImage file should be burned to rom or flash and could be used as small boot loader. Board code should keep their setup code in the file romimage.h located in their mach include directory. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | sh: Rework irqflags tracing to fix up CONFIG_PROVE_LOCKING.Stuart Menefy2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cleans up the irqflags tracing code quite a bit and ties it in to various missing callsites that caused an imbalance when CONFIG_PROVE_LOCKING was enabled. Previously this was catching on: 987 #ifdef CONFIG_PROVE_LOCKING 988 DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled); 989 DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled); 990 #endif 991 retval = -EAGAIN; with hardirqs being doubly enabled, and subsequently bailing out with the following call trace: Call trace: [<88035224>] __lock_acquire+0x616/0x6a6 [<88015a8c>] do_fork+0xf8/0x2b0 [<880331ec>] trace_hardirqs_on_caller+0xd4/0x114 [<88241074>] _spin_unlock_irq+0x20/0x64 [<88035224>] __lock_acquire+0x616/0x6a6 [<8800386c>] kernel_thread+0x48/0x70 [<88024ecc>] ____call_usermodehelper+0x0/0x110 [<88024ecc>] ____call_usermodehelper+0x0/0x110 [<88003894>] kernel_thread_helper+0x0/0x14 [<88024bac>] __call_usermodehelper+0x38/0x70 [<88025dc0>] worker_thread+0x150/0x274 [<88035b9c>] lock_release+0x0/0x198 [<88024b74>] __call_usermodehelper+0x0/0x70 [<88028cf0>] autoremove_wake_function+0x0/0x30 [<88028bf2>] kthread+0x3e/0x70 [<88025c70>] worker_thread+0x0/0x274 [<8800389c>] kernel_thread_helper+0x8/0x14 [<88028bb4>] kthread+0x0/0x70 [<88003894>] kernel_thread_helper+0x0/0x14 Reported-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | Revert "sh: Bump the earlytimer bits back to time_init()."Paul Mundt2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 1d29ebebcb951ab6b04d22807cafb24b893310a2. Bumping up the earlytimer initialization causes IRQs to be enabled too early, which blows up lockdep: ... NR_IRQS:256 nr_irqs:256 ------------[ cut here ]------------ Badness at kernel/lockdep.c:2128 Pid : 0, Comm: swapper CPU : 0 Not tainted (2.6.31-rc3-00205-g3ed6e12-dirty #2443) PC is at trace_hardirqs_on_caller+0x48/0x10c PR is at trace_hardirqs_on_caller+0x3c/0x10c ... Revert it back to late_time_init time, which fixes up lockdep. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | Merge branch 'sh/kfr2r09'Paul Mundt2009-07-23
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| | | * | | | | sh: kfr2r09 board support - mach-type and defconfigMagnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a defconfig and a mach-types entry for the kfr2r09 board. At this point only a few devices like SCIF, KEYSC and NOR Flash are supported together with sh7724 devices such as IIC0, IIC1 and the multimedia blocks exported via UIO. Kexec is supported, but booting from flash is not (yet). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: kfr2r09 board support - KEYSC keypadMagnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds KEYSC keypad support to the kfr2r09 board. The keys driven by the sh7724 on-chip KEYSC block are described as a platform device and platform data for the sh_keysc driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: kfr2r09 board support - NOR flashMagnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds NOR flash support to the kfr2r09 board. NOR flash support is added by describing the NOR flash chip hooked up to CS0 as platform device data for the physmap-flash MTD driver. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | | sh: kfr2r09 board support - SCIF consoleMagnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds basic kfr2r09 board support. Only the SCIF1 console is supported with this patch, but this patch and a proper sh7724 configuration is all that is needed. Combine with an initramfs to have a small RAM based kernel and distribution booted as zImage from RAM via JTAG. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | sh: convert processor device setup functions to arch_initcall()Magnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the processor platform device setup functions from __initcall() and sometimes device_initcall() to arch_initcall(). This makes sure that the platform devices are registered a bit earlier so the devices are available when drivers register using initcall levels earlier than device_initcall(). A good example is platform devices needed by i2c-sh_mobile.c which registers a bit earlier using subsys_initcall(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | usb: m66592-udc platform data on_chip supportMagnus Damm2009-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the m66592-udc driver to use the on_chip flag from platform data to enable on chip behaviour instead of relying on CONFIG_SUPERH_BUILT_IN_M66592 ugliness. This makes the code cleaner and also allows us to support both external and internal m66592 with the same kernel. It also makes the Kconfig part more future proof since we with this patch can add support for new processors with on-chip m66592 without modifying the Kconfig. The patch adds a m66592 header file for platform data and ties in platform data to the existing m66592 devices. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: TLB fast path optimizations for load/store exceptions.Paul Mundt2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This only bothers with the TLB entry flush in the case of the initial page write exception, as it is unecessary in the case of the load/store exceptions. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: TLB protection violation exception optimizations.Paul Mundt2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a bit of rework to have the TLB protection violations skip the TLB miss fastpath and go directly in to do_page_fault(), as these require slow path handling. Based on an earlier patch by SUGIOKA Toshinobu. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: NO_CONTEXT ASID optimizations for SH-4 cache flush.Paul Mundt2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This optimizes for the cases when a CPU does not yet have a valid ASID context associated with it, as in this case there is no work for any of flush_cache_mm()/flush_cache_page()/flush_cache_range() to do. Based on the the MIPS implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh64: Wire up the shared __flush_xxx_region() flushers.Paul Mundt2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now with all of the prep work out of the way, kill off the SH-5 variants and use the SH-4 version directly. This also takes advantage of the unrolling that was previously done for the new version. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Add register alignment helpers for shared flushers.Paul Mundt2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This plugs in some register alignment helpers for the shared flushers, allowing them to also be used on SH-5. The main rationale here is that in the SH-5 case we have a variable ABI, where the pointer size may not equal the register width. This register extension is taken care of by the SH-5 code already today, and is otherwise unused on the SH-4 code. This combines the two and allows us to kill off the SH-5 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Partially unroll the SH-4 __flush_xxx_region() flushers.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This does a bit of unrolling for the SH-4 region flushers. Based on an earlier patch by SUGIOKA Toshinobu. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Split out SH-4 __flush_xxx_region() ops.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This splits out the SH-4 __flush_xxx_region() functions and defines them as weak symbols. This allows us to provide optimized versions without having to ifdef cache-sh4.c to death. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh64: Kill off special clear_page() implementation.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This can use the now generic clear_page() implementation, which is backed by the sh64 optimized memset routine. This also fixes up the case where PAGE_SIZE != 4kB. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Tidy up NEFF-based sign extension for SH-5.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This consolidates all of the NEFF-based sign extension for SH-5. In the future the other SH code will need to make use of this as well, so make it generic in preparation for more 32/64 consolidation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Provide __flush_anon_page().Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides a __flush_anon_page() that handles both the aliasing and non-aliasing cases. This fixes up some crashes with heavy get_user_pages() users. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Drop unused arguments for kunmap_coherent().Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kunmap_coherent() doesn't do anything with its arguments, so just kill them off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Bring kmap_coherent() out-of-line.Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kmap_coherent() has gotten too big to leave as an inline, so we bring it out-of-line. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Add a PG_dcache_dirty sanity check in kmap_coherent().Paul Mundt2009-08-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This plugs in a BUG_ON() in kmap_coherent() for PG_dcache_dirty pages to catch when things go horribly wrong. Copied from the MIPS implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Handle a NULL vma in __update_tlb() for the fast-path.Paul Mundt2009-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TLB miss fast-path presently calls in to update_mmu_cache() to set up the entry, and does so with a NULL vma. Check for vma validity in the __update_tlb() ptrace checks. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: update_mmu_cache() consolidation.Paul Mundt2009-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This splits out a separate __update_cache()/__update_tlb() for update_mmu_cache() to wrap in to. This lets us share the common __update_cache() bits while keeping special __update_tlb() handling broken out. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Use the now generic SH-4 clear/copy page ops for all MMU platforms.Paul Mundt2009-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the SH-4 page clear/copy ops are generic, they can be used for all platforms with CONFIG_MMU=y. SH-5 remains the odd one out, but it too will gradually be converted over to using this interface. SH-3 platforms which do not contain aliases will see no impact from this change, while aliasing SH-3 platforms will get the same interface as SH-4. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Rename arch/sh/lib/clear_page.S -> __clear_user.S.Paul Mundt2009-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that this only contains the __clear_user() function, rename it accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: wire up clear_user_highpage() for sh4, convert sh7705.Paul Mundt2009-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This wires up clear_user_highpage() on SH-4 and subsequently converts the SH7705 32kB cache mode over to using it. Now that the SH-4 implementation handles all of the dcache purging directly in the aliasing case, there is no need to do this in the default clear_page() implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Migrate from PG_mapped to PG_dcache_dirty.Paul Mundt2009-07-22
| |/ / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This inverts the delayed dcache flush a bit to be more in line with other platforms. At the same time this also gives us the ability to do some more optimizations and cleanup. Now that the update_mmu_cache() callsite only tests for the bit, the implementation can gradually be split out and made generic, rather than relying on special implementations for each of the peculiar CPU types. SH7705 in 32kB mode and SH-4 still need slightly different handling, but this is something that can remain isolated in the varying page copy/clear routines. On top of that, SH-X3 is dcache coherent, so there is no need to bother with any of these tests in the PTEAEX version of update_mmu_cache(), so we kill that off too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | sh: Provide _PAGE_SPECIAL for 32-bit.Paul Mundt2009-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allocate one of the unused PTE bits for _PAGE_SPECIAL directly. This is prep work for fast gup and the zero page revival. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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| *-. | | | | | Merge branches 'sh/compressors' and 'sh/stable-updates'Paul Mundt2009-07-21
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| | * | | | | | sh: bzip2/lzma uImage support.Paul Mundt2009-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This builds on the bzip2/lzma zImage support change and wires it up for uImages. Based on the blackfin implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | sh: Clean up linker script using new BSS_SECTION macro.Tim Abbott2009-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Updated to use the fixed BSS linker script macros from this thread: http://www.spinics.net/lists/kernel/msg913238.html Signed-off-by: Tim Abbott <tabbott@ksplice.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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| *-. \ \ \ \ \ \ Merge branches 'sh/hwblk' and 'sh/platform-updates'Paul Mundt2009-07-19
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| | | * | | | | | | usb: r8a66597-hcd platform data on_chip supportMagnus Damm2009-07-19
| | | | |/ / / / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the r8a66597-hcd driver to use the on_chip flag from platform data to enable on chip behaviour instead of relying on CONFIG_SUPERH_ON_CHIP_R8A66597 ugliness. This makes the code cleaner and also allows us to support both external and internal r8a66597 with the same kernel. It also makes the Kconfig part more future proof since we with this patch can add support for new processors with on-chip r8a66597 without modifying the Kconfig. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: hwblk support for sh7723Magnus Damm2009-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds hwblk support for the sh7723 processor. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | | | | sh: Add support for multiple hwblk countersMagnus Damm2009-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the SuperH hwblk code to support more than one counter. Contains ground work for the future Runtime PM implementation. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | | | | | sh: Kill off zero-sized vmlinux_64.lds.SPaul Mundt2009-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This seems to be some merge damage, kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-07-25 00:38:15 -0400