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* sparc,sparc64: unify lib/Sam Ravnborg2008-12-0452-73/+23
| | | | | | | | | | o Renamed files in sparc64 to <name>_64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: prepare lib/ for unificationSam Ravnborg2008-12-0410-8/+17
| | | | | | | | | | | Identical named files renamed to <name>_32.S Refactored Makefile to prepare for unification. Linking order was altered slightly - but this is a lib.a file so it should not matter. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: unify prom/Sam Ravnborg2008-12-0412-11/+5
| | | | | | | | | | | | | | | | | | | | - all files with identical names copied and renamed to *_64.c - the remaning files copied as is - added sparc64 specific files to sparc/prom/Makefile - teach sparc64 Makefile to look into sparc/prom/ - delete unused Makefile from sparc64/prom/ linking order was not kept for sparc64 with this change. It was not possible to keep linking order for both sparc and sparc64 and as sparc64 see more testing than sparc it was natural to break linking order on sparc64. Should it have any effect it would be detected sooner this way. printf_32.c and printf_64.c are obvious candidates to be merged but they are not 100% equal so that was left for later Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: prepare prom/ for unificationSam Ravnborg2008-12-048-2/+13
| | | | | | | | - rename files where sparc64 uses identical names to *_32.c - refactor Makefile (but keep linking order) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: unify MakefileSam Ravnborg2008-12-047-66/+81
| | | | | | | | | | | | | | | | | | | | | | | To unify Makefile for sparc and sparc64 a few other steps was needed: 1) separate defconfig files for sparc and sparc64 is required, so locate these in arch/sparc/configs 2) removoval of hack in toplevel Makefile to deal with that headers was in a separate directory compared to the rest The unification of the Makefile required usage of several foo-$(CONFIG_SPARCnn) += due to a few directories pending unification. This will be cleaned up when we unify the remaining directories. Included in this patch are the deletion of a few files in sparc64 as they are no longer needed: Makefile + Kconfig. arch/sparc64/ will after this patch is applied only have four directories (prom, lib, kernel, boot) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: gitignore a few filesSam Ravnborg2008-12-042-0/+6
| | | | | | | | With this 'git status' no longer reports any new files At least not for a sparc allnoconfig build Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: clean boot/Sam Ravnborg2008-12-042-3/+2
| | | | | | | | Leave all cleaning to boot/Makefile and delete zImage too when we do a 'make clean' Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: refactor MakefileSam Ravnborg2008-12-042-16/+8
| | | | | | | | | The btfixup step needs knowledge of all the .o files, but there is no need to pass them in independent variables. Simplify it to use only two variables. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: unify asm-offsets.cSam Ravnborg2008-12-042-4/+17
| | | | | | | | | sparc64 does not use constants generated from asm-offsets but to prepare it to do so the parts that could be shared do now generate constants for sparc64 too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: use vmlinux.lds.S from sparcSam Ravnborg2008-12-042-177/+2
| | | | | | | Previous commit made them identical so use the sparc version Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: prepare vmlinux.lds.S for unificationSam Ravnborg2008-12-042-28/+116
| | | | | | | | | | | | | This patch makes the two vmlinux.lds.S files identical and serve as documentation for the changes in each file. This mainly add stuffs to sparc32 that is otherwise only used by sparc64 and thus it should have no effect. Build tested only. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Provide oprofile pseudo-NMI on Niagara.David S. Miller2008-12-041-16/+135
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Add performance counter hypervisor calls for sun4v.David S. Miller2008-12-043-0/+62
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Add save_stack_trace_tsk().David S. Miller2008-12-042-9/+27
| | | | | | And this allows us to indicate HAVE_LATENCYTOP_SUPPORT. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc32: pdev_to_pnode() is used from __devinitAl Viro2008-12-041-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc32: Don't btfixup cache flush ops for viking multiple times.David S. Miller2008-12-041-12/+11
| | | | | | | | Just do it once. Pointed out by Al Viro. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: combine unistd_{32,64}.hStephen Rothwell2008-12-045-773/+443
| | | | | | | | This is complicated a little because compat_audit.c wants to see only the 32bit syscall numbers, but is being built in a 64bit compile. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Use NMI oprofile profiling on cheetah and derivative cpus.David S. Miller2008-12-041-1/+109
| | | | | | | | | | We use clock cycle counter, adjusted to HZ. This can be extended to sun4v based processors as well, as they also have a proper overflow interrupt facility for the performance counters. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Add write_pic() helper.David S. Miller2008-12-041-4/+5
| | | | | | | | It writes the %pic register, keeping mind of processor bugs. Implement reset_pic() in terms of it. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Block NMIs in critical section of context switch.David S. Miller2008-12-041-0/+2
| | | | | | | | | | In these instructions we load the new thread register, switch the register window, and setup the new frame pointer. All of these must appear atomic, and things will explode if we take a PIL=15 NMI interrupt in the middle of this sequence. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Make special trap return path for TRAP_NMI().David S. Miller2008-12-042-2/+14
| | | | | | | We don't want the rtrap path to try and run softirqs or anything like that when returning from a PIL==15 NMI. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Make %pil level 15 a pseudo-NMI.David S. Miller2008-12-0412-25/+46
| | | | | | | | | So that we can profile code even in a local_irq_disable() section, only write 14 (instead of 15) into the %pil register to disable IRQs. This allows PIL level 15 to serve as a pseudo NMI. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: Include drivers/pcmcia/KconfigDavid S. Miller2008-12-042-18/+7
| | | | | | | | | | | | | Stephen Rothwell pointed out that pcmcia can't be enabled on sparc64. There is an empty non-prompt PCMCIA explicit entry in arch/sparc/Kconfig but that doesn't do anything. 32-bit sparc needs a small hack to make this work, since it doesn't use the generic IRQ layer yes. We have to provide a dummy definition of probe_irq_mask(), since this is used by the yenta socket driver. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Add interface for registering a performance counter IRQ handler.David S. Miller2008-12-043-1/+67
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Add tsb-ratio sysctl.David S. Miller2008-12-042-7/+28
| | | | | | | | | | | | | | | | | Add a sysctl to tweak the RSS limit used to decide when to grow the TSB for an address space. In order to avoid expensive divides and multiplies only simply positive and negative powers of two are supported. The function computed takes the number of TSB translations that will fit at one time in the TSB of a given size, and either adds or subtracts a percentage of entries. This final value is the RSS limit. See tsb_size_to_rss_limit(). Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: unify mm/Sam Ravnborg2008-12-0411-13/+8
| | | | | | | | | | | - move all sparc64/mm/ files to arch/sparc/mm/ - commonly named files are named _64.c - add files to sparc/mm/Makefile preserving link order - delete now unused sparc64/mm/Makefile - sparc64 now finds mm/ in sparc Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: prepare mm/ for unificationSam Ravnborg2008-12-044-8/+12
| | | | | | | | | - rename files where sparc64 has similar files to _32.c - Restructure Makefile - Sneak in -Werror as we have for sparc64 Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: unify arch/sparc64/oprofile/Sam Ravnborg2008-12-043-33/+1
| | | | | | | | | | | | | A simple: diff arch/sparc64/oprofile/init.c arch/sparc/oprofile/init.c diff arch/sparc64/oprofile/Makefile arch/sparc/oprofile/Makefile revealed that the directories were equal. So let sparc64 point to the sparc version and drop the sparc64 oprofile dir Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: unify math-emuSam Ravnborg2008-12-044-9/+2
| | | | | | | | Move relavent files to sparc/math-emu and adjust path/include accordingly. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: prepare math-emu for unificationSam Ravnborg2008-12-043-2/+2
| | | | | | | Add _32 to filenames to make them 32 bit unique Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: cleanup math-emuSam Ravnborg2008-12-042-39/+3
| | | | | | | | | - Drop unused assignment from Makefile - Replace EXTRA_CFLAGS with ccflags-y - Delete unused file Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: add BITS to arch MakefileSam Ravnborg2008-12-042-5/+6
| | | | | | | BITS will be used to simplify unified Makefiles Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc,sparc64: unify Kconfig filesSam Ravnborg2008-12-042-476/+309
| | | | | | | | | | | | | | | | Merge all of sparc64 Kconfig to sparc Kconfig. The merge was checked by: - visual inspection in menuconfig - result of allnoconfig, allmodconfig, allyesconfig was checked before and after - result of a number of randconfig was checked before and after scripts/diffconfig was used to check if the config differed before and after The validity of the test was checked by on purpose introducing a few bugs - and they were all caught by first run. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: add "Bus options" to KconfigSam Ravnborg2008-12-041-61/+67
| | | | | | | | | To align with sparc64 add a "Bus options" menu This has the additiona advantage that all bus options are kept together Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: add menu "Executable file formats"Sam Ravnborg2008-12-041-2/+6
| | | | | | | This is what we use in sparc64 - make sparc equal Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: use Kconfig.hzSam Ravnborg2008-12-041-4/+1
| | | | | | | | We already has the proper definition in place in param.h. So use the common Kconfig.hz file Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: drop UNIX98_PTYS from arch KconfigSam Ravnborg2008-12-041-34/+0
| | | | | | | | We have it in drivers/char/Kconfig There is no need to ask twice Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: added more config options to the menusSam Ravnborg2008-12-041-38/+42
| | | | | | | | | | moved a few config entries inside a menu so we do not clutter the first screen up with a lot of detailed config options. The structure now remotely resemble the structure for i386 Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: refactor Kconfig a littleSam Ravnborg2008-12-041-23/+24
| | | | | | | | Mode declaration of SPARC up in the top to match the structure of sparc64 Kconfig Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc: unify Kconfig.debugSam Ravnborg2008-12-043-45/+27
| | | | | | | Let sparc and sparc64 use the same Kconfig.debug Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Stop using memory barriers for atomics and locks.David S. Miller2008-12-0415-137/+17
| | | | | | | | | The kernel always executes in the TSO memory model now, so none of this stuff is necessary any more. With helpful feedback from Nick Piggin. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Run the kernel always in the TSO memory model.David S. Miller2008-12-043-17/+12
| | | | | | | | | | | | | | | | The fact of the matter is, all UltraSPARC-III and later chips only implement TSO. They don't implement PSO and RMO memory models at all. Only the Ultra-I and Ultra-II family chips implement RMO and they are only helped marginally by using this setting when executing kernel code. The big plus to doing this is that we can eliminate all of the non-Sync memory barriers in the kernel except for the ones used in the optimized memcpy/memset code (these use block load and store operations which have their own memory ordering rules). Signed-off-by: David S. Miller <davem@davemloft.net>
* of: Fix comment, sparc no longer uses of_device objects on special busses.David S. Miller2008-12-041-2/+1
| | | | | | It only uses of_platform_bus_type. Signed-off-by: David S. Miller <davem@davemloft.net>
* sparc64: Rework auxio driver to save some text space.David S. Miller2008-12-041-44/+26
| | | | | | | | | | | | | | | | | Use common functions instead of inlining and duplicating logic over and over to handle the SBUS vs. EBUS cases. Before: text data bss dec hex filename 715 568 16 1299 513 arch/sparc64/kernel/auxio.o After: text data bss dec hex filename 631 568 16 1215 4bf arch/sparc64/kernel/auxio.o Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-12-043-3/+6
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
| * sparc64: Sync FPU state in VIS emulation handler.Hong H. Pham2008-12-041-0/+2
| | | | | | | | | | | | | | | | Copy the FPU state to the task's thread_info->fpregs for the VIS emulation functions to access. Signed-off-by: Hong H. Pham <hong.pham@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Fix VIS emulation bugsJoseph Myers2008-12-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes some bugs in VIS emulation that cause the GCC test failure FAIL: gcc.target/sparc/pdist-3.c execution test for both 32-bit and 64-bit testing on hardware lacking these instructions. The emulation code for the pdist instruction uses RS1(insn) for both source registers rs1 and rs2, which is obviously wrong and leads to the instruction doing nothing (the observed problem), and further inspection of the code shows that RS1 uses a shift of 24 and RD a shift of 25, which clearly cannot both be right; examining SPARC documentation indicates the correct shift for RS1 is 14. This patch fixes the bug if single-stepping over the affected instruction in the debugger, but not if the testcase is run standalone. For that, Wind River has another patch I hope they will send as a followup to this patch submission. Signed-off-by: Joseph Myers <joseph@codesourcery.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc: asm/bitops.h should define __flsRusty Russell2008-12-031-0/+1
| | | | | | | | | | | | | | | | | | | | bitops_64.h includes the generic one; pretty sure 32 should too. (Found by using __fls in generic code and breaking sparc defconfig build: thanks Stephen and linux-next!) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sparc64: Fix bug in PTRACE_SETFPREGS64 handling.Chris Torek2008-12-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | From: Chris Torek <chris.torek@windriver.com> >The SPARC64 kernel code for PTRACE_SETFPREGS64 appears to be an exact copy >of that for PTRACE_GETFPREGS64. This means that gdbserver and native >64-bit GDB cannot set floating-point registers. It looks like a simple typo. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2008-12-038-19/+37
|\ \ | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: fix setting of max_segment_size and seg_boundary mask block: internal dequeue shouldn't start timer block: set disk->node_id before it's being used When block layer fails to map iov, it calls bio_unmap_user to undo
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