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* sh: Kill bogus GCC4 symbol exports.Paul Mundt2007-03-281-3/+0
| | | | | | | | | __sdivsi3_i4i, __udiv_qrnnd_16, and __udivsi3_i4i don't exist outside of the ST compiler, so kill them off. This causes compile failures with other GCC4 compilers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix bogus regs pointer in do_IRQ().Paul Mundt2007-03-143-14/+7
| | | | | | | | SH-3 and SH-4 were trampling the register, and SH-2 wasn't even setting it in the first place. This ended up with some rather broken behaviour in the sysrq show_regs(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix SH-3 cache entry_mask and way_size calculation.Paul Mundt2007-03-122-16/+17
| | | | | | | | The code for performing the calculation was only in the SH-4 probe path, move it out to the common path so the other parts get this right too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix PCI BAR address-space wraparound.Hideo Saito2007-03-121-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | When a SH7751R system includes a card that has wide range space like a graphics card, the pci-pci bridge controller can't set the correct address range. For example, when *lower_limit is 0xfd000000 and bar_size is 0x4000000, in the following code at arch/sh/drivers/pci/pci-auto.c, 0x0 is set in bar_value. pciauto_setup_bars() { ... bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size; ... *lower_limit = bar_value + bar_size; } As a result, 0x4000000 is set in *lower_limit, but this value is wrong. The following patch avoids this problem by checking the range of the value and refusing to update the BAR if the calculated value ends up being bogus. Signed-off-by: Hideo Saito <saito@densan.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off I/O cruft for R7780RP.Paul Mundt2007-03-053-254/+1
| | | | | | | We don't have any use for these machvec fixups anymore, kill them all off and go with the generic instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Revert lazy dcache writeback changes.Paul Mundt2007-03-059-82/+185
| | | | | | | These ended up causing too many problems on older parts, revert for now.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Enable SM501 support for RTS7751R2D.Paul Mundt2007-03-052-10/+126
| | | | | | | | This enables the SM501 drivers for the R2D board. Additional work needs to be done to migrate off of the VoyagerGX cchip code to make use of the rest of the mfd infrastructure. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use L1_CACHE_BYTES for .data.cacheline_aligned.Paul Mundt2007-03-051-1/+2
| | | | | | | Previously this was using a hardcoded 32, use L1_CACHE_BYTES for cacheline alignment instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix kernel thread stack corruption with preempt.Hideo Saito2007-03-051-3/+2
| | | | | | | | | | | When I run a preemptive kernel-2.6.20 for SH7780, a created kthread(pdflush) can not exit by do_exit() in kernel_thread_helper. I think that the created kthread should have a room for 'struct pt_regs' space on the stack top, because __switch_to() will refer to the space as follows using 'regs = task_pt_regs(prev)' and next condition may be true. Signed-off-by: Hideo Saito <saito@densan.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix sigmask trampling in signal delivery.Ryusuke Sakato2007-03-051-1/+3
| | | | | | | | | There was a missing return in do_signal() that caused the saved sigmask to be written back after having successfully delivered the signal. Signed-off-by: Ryusuke Sakato <sakato@hsdv.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Clear UBC when not in use.Stuart Menefy2007-03-052-13/+34
| | | | | | | | | This takes care of tearing down the UBC so it's not inadvertently left configured at the next context switch time. Failure to do this results in spurious SIGTRAPs in certain debug sequences. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Storage class should be before const qualifierTobias Klauser2007-02-172-4/+4
| | | | | | | | | | | The C99 specification states in section 6.11.5: The placement of a storage-class specifier other than at the beginning of the declaration specifiers in a declaration is an obsolescent feature. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* sh: rts7751r2d board updates.Paul Mundt2007-02-159-517/+386
| | | | | | | | This tidies up some of the rts7751r2d mess and gets it booting again. Update the defconfig, too. Signed-off-by: Masayuki Hosokawa <hosokawa@ace-jp.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off dead bigsur and ec3104 boards.Paul Mundt2007-02-1415-1056/+1
| | | | | | | | Neither of these have had any maintenance in years, and there's no interest in keeping them straggling along. These have already been slated for removal some time, so finally just get rid of them. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup r7780rp pata_platform for devres conversion.Paul Mundt2007-02-142-117/+53
| | | | | | | | | | Tidy up the R7780RP I/O mapping routines and switch the pata_platform resources to IORESOURCE_MEM types, killing off the useless port->addr conversion. This fixes up R7780RP to boot after the recent devres conversion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Revert TLB miss fast-path changes that broke PTEA parts.Paul Mundt2007-02-142-181/+107
| | | | | | | | This ended up causing problems for older parts (particularly ones using PTEA). Revert this for now, it can be added back in once it's had some more testing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Compile fix for heartbeat consolidation.Paul Mundt2007-02-131-0/+132
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: heartbeat consolidation for banked LEDs.Paul Mundt2007-02-1332-571/+260
| | | | | | | | | | | This consolidates the various board heartbeat LED implementations, used for strobing the load average across a LED bank. Those boards not implementing a full bank can hook in via the LED class. We leave the compat hook in the machvec for now until those non-banked boards are able to migrate to the drivers/leds. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill dead/unused ISA code from __ioremap().Paul Mundt2007-02-131-6/+0
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix syscall numbering breakage.Paul Mundt2007-02-131-4/+4
| | | | | | We accidentally broke the inotify syscalls, fix those up again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: dcache write-back for R7780RP PIO.Paul Mundt2007-02-131-0/+4
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Switch to local TLB flush variants in additional callsites.Paul Mundt2007-02-131-3/+3
| | | | | | | Convert some of the global flush users over to using the local variants that don't need to use the global routines. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Local TLB flushing variants for SMP prep.Paul Mundt2007-02-137-29/+21
| | | | | | | Rename the existing flush routines to local_ variants for use by the IPI-backed global flush routines on SMP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup cpu_data references for the non-boot CPUs.Paul Mundt2007-02-1317-232/+244
| | | | | | | There are a lot of bogus cpu_data-> references that only end up working for the boot CPU, convert these to current_cpu_data to fixup SMP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use a per-cpu ASID cache.Paul Mundt2007-02-134-55/+53
| | | | | | | | Previously this was implemented using a global cache, cache this per-CPU instead and bump up the number of context IDs to match NR_CPUS. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: add SH_CLK_MD Kconfig default.Andrew Morton2007-02-131-0/+1
| | | | | | | | This option needs a default - otherwise `make allmodconfig' gets stuck in an infinite loop. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup SHMIN INTC register definitions.Nobuhiro Iwamatsu2007-02-131-5/+5
| | | | | Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SH-DMAC compile fixesManuel Lauss2007-02-132-30/+17
| | | | | | | | | | | | | | | | | This patch does the following: - remove the make_ipr_irq stuff from dma-sh.c and replace it with a simple channel<->irq mapping table. - add DMTEx_IRQ constants for sh4 cpus - fix sh7751 DMAE irq number The SH7780 uses the same IRQs for DMA as other SH4 types, so I put the constants on top of the dma.h file. Other CPU types need to #define their own DMTEx_IRQ contants in their appropriate header. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: add SH7760 IPR IRQ dataManuel Lauss2007-02-132-15/+52
| | | | | | | Add SH7760 IPR IRQ data; makes 2.6.20-rc bootable again. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix handle_BUG() compile error.Nobuhiro Iwamatsu2007-02-131-1/+1
| | | | | | | | handle_BUG() uses TRAPA_BUG_OPCODE which is only defined for CONFIG_BUG, make sure it's not built when CONFIG_BUG=n. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Don't set reserved _PAGE_WT bit on SH-3.Paul Mundt2007-02-131-1/+1
| | | | | | | | Only SH-4 needs to set _PAGE_WT when using write-through caching, don't attempt to set it on SH-3 where it ends up being a reserved bit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Lazy dcache writeback optimizations.Paul Mundt2007-02-139-190/+76
| | | | | | | | | | | | | | | This converts the lazy dcache handling to the model described in Documentation/cachetlb.txt and drops the ptep_get_and_clear() hacks used for the aliasing dcaches on SH-4 and SH7705 in 32kB mode. As a bonus, this slightly cuts down on the cache flushing frequency. With that and the PTEA handling out of the way, the update_mmu_cache() implementations can be consolidated, and we no longer have to worry about which configuration the cache is in for the SH7705 case. And finally, explicitly disable the lazy writeback on SMP (SH-4A). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: More tidying for large base pages.Paul Mundt2007-02-132-7/+5
| | | | | | | | There were a few more things that needed fixing up, namely THREAD_SIZE and the TLB miss handler where certain PTRS_PER_PGD == PTRS_PER_PTE assumptions were being made. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Solution Engine 770x IPR irq setup.Nobuhiro Iwamatsu2007-02-132-41/+75
| | | | | | | Fixups for external IPR IRQs for the SE770x FPGA. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Solution Engine 7750's defconfig update.Nobuhiro Iwamatsu2007-02-131-20/+120
| | | | | | | Update se7750_defconfig. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: shmin updates.Takashi YOSHII2007-02-134-4/+50
| | | | | | | | This fixes up shmin (and SH7706/SH7708) IPR support for some of the recent API changes. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup R7780RP iVDR clock enable.Paul Mundt2007-02-131-1/+1
| | | | | | | | | The iVDR clock enable bit happens to actually reside in a rather different place than what is documented, so fix it up accordingly. This fixes up SATA boot for some of the R7780RP boards that didn't default-enable the clock in the loader. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: allow earlyprintk baud rate to be set via command lineJamie Lenehan2007-02-131-2/+22
| | | | | | | | | | | | | | | | This allows the baud rate for earlyprintk for sh4 without the standard BIOS to be set via the command line. This uses the same format as i386 and x86_64, which is: earlyprintk=serial,ttySC1,38400 The second parameter (ttySC1 above) is usually the console device name or the io address of the serial port. I allow that to be specified but ignore it in order to keep the format the same as i386/x86_64. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: sh7619 / sh7206 IPR initialize updateYoshinori Sato2007-02-132-79/+72
| | | | | | | IPR initialize proceduere update. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Update SH-2 to use the debug trap jump table.Yoshinori Sato2007-02-131-6/+4
| | | | | Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use proper SH-2A CFLAGS on newer compilers.Paul Mundt2007-02-131-0/+1
| | | | | | | | -m2 doesn't end up working particularly well when we've got a constrained toolchain target. Switch to the same semantics used by SH-4A to attempt to get it right. Spotted by Alex Song <songqf9@yahoo.ca>. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use a jump call table for debug trap handlers.Paul Mundt2007-02-137-85/+113
| | | | | | | | | | | | | | | | | This rips out most of the needlessly complicated sh_bios and kgdb trap handling, and forces it all through a common fast dispatch path. As more debug traps are inserted, it's important to keep them in sync for all of the parts, not just SH-3/4. As the SH-2 parts are unable to do traps in the >= 0x40 range, we restrict the debug traps to the 0x30-0x3f range on all parts, and also bump the kgdb breakpoint trap down in to this range (from 0xff to 0x3c) so it's possible to use for nommu. Optionally, this table can be padded out to catch spurious traps for SH-3/4, but we don't do that yet.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* [PATCH] mark struct file_operations const 2Arjan van de Ven2007-02-124-4/+4
| | | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Dynamic kernel command-line: shAlon Bar-Lev2007-02-121-3/+3
| | | | | | | | | | 1. Rename saved_command_line into boot_command_line. 2. Set command_line as __initdata. Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Consolidate default sched_clock()Alexey Dobriyan2007-02-111-8/+0
| | | | | | | | | Use attribute(weak). Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] disable init/initramfs.c: architecturesJean-Paul Saman2007-02-111-0/+4
| | | | | | | | | | | | Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs when CONFIG_BLK_DEV_INITRAMFS is not selected. This saves another 4 kbytes on most platfoms (some reserve PAGE_SIZE for initramfs). Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] optional ZONE_DMA: remove ZONE_DMA remains from sh/sh64Christoph Lameter2007-02-111-16/+1
| | | | | | | | | | | sh / sh64: Remove ZONE_DMA remains. Both arches do not need ZONE_DMA Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-apmLinus Torvalds2007-02-094-586/+28
|\ | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-apm: [APM] SH: Convert to use shared APM emulation. [APM] MIPS: Convert to use shared APM emulation. [APM] ARM: Convert to use shared APM emulation. [APM] Add shared version of APM emulation
| * [APM] SH: Convert to use shared APM emulation.Paul Mundt2007-02-094-586/+28
| | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [PATCH] SH vdso: use install_special_mapping()Paul Mundt2007-02-091-49/+9
|/ | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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