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* [SPARC]: Remove legacy stuff from cpu_idle().Coywolf Qi Hunt2005-05-05
| | | | | | | | | Currently sparc and sparc64's UP cpu_idle() checks current pid. This is old time legacy. Now it's paranoia. Signed-off-by: Coywolf Qi Hunt <coywolf@lovecn.org> Acked-by: William Irwin <wli@holomorphy.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Kill useless __pte_alloc_one_kernel indirectionChristoph Hellwig2005-05-05
| | | | | | warning: untested, but it there's not too much chance for screwups Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse2005-05-05
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| * Automatic merge of ↵Linus Torvalds2005-05-04
| |\ | | | | | | | | | rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git
| | * [IA64-SGI] move nodepda pointer out of pdaDean Nelson2005-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the p_nodepda and p_subnodepda pointers from the pda_s structure. And then define a new per-cpu pointer to the nodepda and export it so that it can be accessed by kernel modules. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] Update arch/ia64/configs/tiger_defconfigTony Luck2005-05-03
| | | | | | | | | | | | | | | | | | Kristen did most of the checking, bring this up to -rc2. Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] Fix two warnings introduced by perfmon patches.Tony Luck2005-05-03
| | | | | | | | | | | | Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] another perfmon fix (take2)stephane eranian2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - pfm_context_load(): change return value from EINVAL to EBUSY when context is already loaded. - pfm_check_task_state(): pass test if context state is MASKED. It is safe to give access on PFM_CTX_MASKED because the PMU state (PMD) is stable and saved in software state. This helps multiplexing programs such as the example given in libpfm-3.1. Signed-off-by: stephane eranian <eranian@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] perfmon & PAL_HALT againStephane Eranian2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The pmu_active test is based on the values of PSR.up. THIS IS THE PROBLEM as it does not take into account the lazy restore logic which is as follow (simplified): context switch out: save PMDs clear psr.up release ownership context switch in: if (ctx->last_cpu == smp_processor_id() && ctx->cpu_activation == cpu_activation) { set psr.up return } restore PMD restore PMC ctx->last_cpu = smp_processor_id(); ctx->activation = ++cpu_activation; set psr.up The key here is that on context switch out, we clear psr.up and on context switch in we check if nobody else used the PMU on that processor since last time we came. In that case, we assume the PMD/PMC are ours and we simply reactivate. The Caliper problem is that between the moment we context switch out and the moment we come back, nobody effectively used the PMU BUT the processor went idle. Normally this would have no incidence but PAL_HALT does alter the PMU registers. In default_idle(), the test on psr.up is not strong enough to cover this case and we go into PAL which trashed the PMU resgisters. When we come back we falsely assume that this is our state yet it is corrupted. Very nasty indeed. To avoid the problem it is necessary to forbid going to PAL_HALT as soon as perfmon installs some valid state in the PMU registers. This happens with an application attaches a context to a thread or CPU. It is not enough to check the psr/dcr bits. Hence I propose the attached patch. It adds a callback in process.c to modify the condition to enter PAL on idle. Basically, now it is conditional to pal_halt=1 AND perfmon saying it is okay. Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] altix: fix TIOCA dmamap list_addMark Maule2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | Correct a bug where tioca_dma_mapped() is putting tioca dma map structs on the wrong list. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] SAL to OS callbacks cannot call sleepingKeith Owens2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | When SAL calls back into the OS, the OS code is running with preempt disabled so it cannot call sleeping functions. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] MCA recovery improvementsRuss Anderson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jack Steiner uncovered some opportunities for improvement in the MCA recovery code. 1) Set bsp to save registers on the kernel stack. 2) Disable interrupts while in the MCA recovery code. 3) Change the way the user process is killed, to avoid a panic in schedule. Testing shows that these changes make the recovery code much more reliable with the 2.6.12 kernel. Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] fix ia64 syscall auditingDavid Woodhouse2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Attached is a patch against David's audit.17 kernel that adds checks for the TIF_SYSCALL_AUDIT thread flag to the ia64 system call and signal handling code paths. The patch enables auditing of system calls set up via fsys_bubble_down, as well as ensuring that audit_syscall_exit() is called on return from sigreturn. Neglecting to check for TIF_SYSCALL_AUDIT at these points results in incorrect information in audit_context, causing frequent system panics when system call auditing is enabled on an ia64 system. I have tested this patch and have seen no problems with it. [Original patch from Amy Griffis ported to current kernel by David Woodhouse] From: Amy Griffis <amy.griffis@hp.com> From: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] reduce cacheline bouncing in cpu_idle_waitZwane Mwaikambo2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Andi noted that during normal runtime cpu_idle_map is bounced around a lot, and occassionally at a higher frequency than the timer interrupt wakeup which we normally exit pm_idle from. So switch to a percpu variable. I didn't move things to the slow path because it would involve adding scheduler code to wakeup the idle thread on the cpus we're waiting for. Signed-off-by: Zwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] Altix only: Fix for sn_dma_flushMike Habeck2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following patch fixes a bug in the SGI Altix sn_dma_flush code. sn_dma_flush is broken in 2.6. The code isn't waiting for the DMA data to be flushed out of the PIC ASIC. This patch is based off the linux-ia64-test-2.6.12 tree Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] use common pxm functionAlex Williamson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | This patch simplifies a couple places where we search for _PXM values in ACPI namespace. Thanks, Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] Altix only: Register Error InterruptColin Ngam2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | The following patch ensures that the correct error interrupt handling routine is initialized. This patch is based on the 2.6.12 ia64 release tree. Signed-off-by: Colin Ngam <cngam@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] convert AMO address found in XPC's reserved pageDean Nelson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch detects the existence of an uncached physical AMO address setup by EFI's XPBOOT (SGI) and converts it to an uncached virtual AMO address. Depends on a patch submitted on 23 March 2005 with the subject of: [PATCH 2/3] SGI Altix cross partition functionality (2nd revision) Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] SGI Altix cross partition functionality [3/3]Dean Nelson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | This patch contains the cross partition pseudo-ethernet driver (XPNET) functional support module. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] SGI Altix cross partition functionality [2/3]Dean Nelson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | This patch contains the communication module (XPC) for cross partition communication on a partitioned SGI Altix. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] manually apply changes to arch/ia64/sn/kernel/MakefileTony Luck2005-05-03
| | | | | | | | | | | | | | | | | | | | | cg-patch couldn't apply the patch to Makefile, and my dumb script rushed on and ran cg-commit without this change. Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] SGI Altix cross partition functionality (2ndDean Nelson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | This patch contains the shim module (XP) which interfaces between the communication module (XPC) and the functional support modules (like XPNET). Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [PATCH] move cnodeid_to_nasid_table out of pdaDean Nelson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Another step in the effort to eliminate the SN pda structure. This patch moves the cnodeid_to_nasid_table field out of the pda, making it a standalone per-cpu data item, and exports it so it can be accessed by kernel modules. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] Altix patch to add bricktype knowledge to tiocxBruce Losure2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | Here is a patch to enable the SGI tiocx bus driver to distingush between FPGA-attached h/w and non-FPGA-attached h/w. Signed-off-by: Bruce Losure <blosure@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] Altix only: Remove hubdev SAL call Bruce Losure2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi Tony, This patch against ia64-test-2.6.12 fixes a bug where the tiocx code was inadvertently un-doing some address modifications done in earlier fixup code. This patch just removes the offending code. Signed-off-by: Bruce Losure <blosure@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] use fc.i for fluch_icache_range()David Mosberger-Tang2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a small patch to switch fluch_icache_range() to use fc.i instead of fc. This would save time on processors which can establish i-cache coherency without flushing the cache-line out to memory (not that any current processors do). On existing processors, fc.i behaves like fc. The only caveat is that very old assemblers may not know about fc.i yet. Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] fix typos caught by new assemblerDavid Mosberger-Tang2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch below fixes 3 trivial typos which are caught by the new assembler (v2.169.90). Please apply. [Note: fix to memcpy that was also part of this patch was separately applied from patches by H.J. and Andreas ... so the delta here only has the other two fixes. -Tony] Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] Fix memcpy_mck.S for current binutilsAndreas Schwab2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | The current ia64 assembler complains about mismatching .proc/.endp pairs. (Same patch also sent by H.J. Lu) Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64] Add config SCHED_SMTSuresh Siddha2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have MC/MT detection patches in, appended patch allows us to configure MT scheduler optimizations. For now, we will this option off by default. There is some discussion going on lkml about setting up sched-domains which are absolutely needed (like for example, we shouldn't setup SMT domain for non MT processors). Once that patch goes in, we can enable this option by default. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [PATCH] ISA DMA Kconfig fixes - part 1Al Viro2005-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A bunch of drivers use ISA DMA helpers or their equivalents for platforms that have ISA with different DMA controller (a lot of ARM boxen). Currently there is no way to put such dependency in Kconfig - CONFIG_ISA is not it (e.g. it is not set on platforms that have no ISA slots, but have on-board devices that pretend to be ISA ones). New symbol added - ISA_DMA_API. Set when we have functional enable_dma()/set_dma_mode()/etc. set of helpers. Next patches in the series will add missing dependencies for drivers that need them. I'm very carefully staying the hell out of the recurring flamefest on what exactly CONFIG_ISA would mean in ideal world - added symbol has a well-defined meaning and for now I really want to treat it as completely independent from the mess around CONFIG_ISA. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | [PATCH] sparc NULL noise removalAl Viro2005-05-04
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * | Merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6.git/Linus Torvalds2005-05-04
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| | * | [PATCH] PCI: drivers/pci/pci.c: remove pci_dac_set_dma_maskAdrian Bunk2005-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_dac_set_dma_mask is currently completely unused. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | [SPARC64]: Disable IRQ forwarding.David S. Miller2005-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is some race whereby IRQs get stuck, the IRQ status is pending but no processor actually handles the IRQ vector and thus the interrupt. This is a temporary workaround. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [SPARC64]: Fix goal_cpu tracking in retarget_one_irq().David S. Miller2005-05-04
| |/ / | | | | | | | | | | | | | | | | | | We would never advance the goal_cpu counter like we should, so all IRQs would go to a single processor. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge of master.kernel.org:/home/rmk/linux-2.6-rmk.gitLinus Torvalds2005-05-03
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| | * | [PATCH] ARM: 2662/1: missing "default y" for CONFIG_HAS_TLS_REGNicolas Pitre2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [PATCH] ARM: 2661/1: imxfb includeSascha Hauer2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Sascha Hauer This patch adds the missing include files for the i.MX framebuffer driver. Signed-off-by: Sascha Hauer Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [PATCH] ARM: Clean up commenting/spacing for IntegratorRussell King2005-05-03
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk@arm.linux.org.uk>
| | * | [PATCH] ARM: decompressor: use platform debug macrosRussell King2005-05-03
| | |/ | | | | | | | | | | | | | | | | | | Rather than duplicate the assembly for debug macros in the decompressor head.S, use asm/arch/debug-macros.S instead. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
| * / [PATCH] ppc64: fix gcc 4.0 vs CONFIG_ALTIVECBenjamin Herrenschmidt2005-05-03
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gcc-4.0 generates altivec code implicitly when -mcpu indicates an altivec capable CPU which is not suitable for the kernel. However, we used to set -mcpu=970 when CONFIG_ALTIVEC was set because a gcc-3.x bug prevented from using -maltivec along with -mcpu=power4, thus prevented building the RAID6 altivec code. This patch fixes all of this by testing for the gcc version. If 4.0 or later, just normally use -mcpu=power4 and let the RAID6 code add -maltivec to the few files it needs to be compiled with altivec support. For 3.x, we still use -mcpu=970 to work around the above problem, which is fine as 3.x will never implicitly generate altivec code. The Makefile hackery may not be the most lovely, I welcome anybody more skilled than me to improve it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [AUDIT] Log correct syscall args for i386 processes on x86_64David Woodhouse2005-05-03
| | | | | | | | | | | | | | The i386 syscall ABI uses different registers. Log those instead of the x86_64 ones. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse2005-05-03
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| * [PATCH] ppc32: Fix might_sleep() warning with clock spreadingBenjamin Herrenschmidt2005-05-02
| | | | | | | | | | | | | | | | | | | | | | | | The clock spreading disable/enable code was called to late/early during the suspend/resume code on some laptops and would trigger a might_sleep() warning due to the down() call in the low level i2c code. This fixes it by calling those functions earlier/later when interrupts are still enabled. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] ppc32: Fix sleep on old 101 PowerBookBenjamin Herrenschmidt2005-05-01
| | | | | | | | | | | | | | | | | | | | A typo in the machine table incorrectly mark the 101 PowerBook as needing explicit callback from the video driver to enable sleep mode. I did not implement that mecanism for chipsest older than r128, so we need to mark this machine as always beeing able to sleep for now. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] ppc32: Workaround a cache flush issue on sleepBenjamin Herrenschmidt2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We are experiencing a problem when flushing the CPU caches before sleep on some laptop models using the 750FX CPU rev 1.X. While I haven't been able to figure out a proper explanation for what's going on, I do have a workaround that seem to work reliably and allows those machine to sleep and wakeup properly again. I'll re-update that code if/when I ever find exactly what is happening with those CPU revisions. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] make lots of things staticAdrian Bunk2005-05-01
| | | | | | | | | | | | | | | | Another large rollup of various patches from Adrian which make things static where they were needlessly exported. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] fbdev: edid.h cleanupsAdrian Bunk2005-05-01
| | | | | | | | | | | | | | | | | | This patch removes some completely unused code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] convert that currently tests _NSIG directly to use valid_signal()Jesper Juhl2005-05-01
| | | | | | | | | | | | | | | | | | Convert most of the current code that uses _NSIG directly to instead use valid_signal(). This avoids gcc -W warnings and off-by-one errors. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] consolidate sys_shmatStephen Rothwell2005-05-01
| | | | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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