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* [PATCH] x86_64: Use a VMA for the 32bit vsyscallAndi Kleen2005-04-165-75/+61
| | | | | | | | | | | | | Use a real VMA to map the 32bit vsyscall page This interacts better with Hugh's upcomming VMA walk optimization Also removes some ugly special cases. Code roughly modelled after the ppc64 vdso version from Ben Herrenschmidt. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64 show_stack(): call touch_nmi_watchdogakpm@osdl.org2005-04-161-0/+2
| | | | | | | | I had strange NMI watchdog timeouts running sysrq-T across 9600-baud serial. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64 genapic updateJason Davis2005-04-162-0/+20
| | | | | | | | | | | | | | | | | | x86_64 genapic mechanism should be aware of machines that use physical APIC mode regardless of how many clusters/processors are detected. ACPI 3.0 FADT makes this determination very simple by providing a feature flag "force_apic_physical_destination_mode" to state whether the machine unconditionally uses physical APIC mode. Unisys' next generation x86_64 ES7000 will need to utilize this FADT feature flag in order to boot the x86_64 kernel in the correct APIC mode. This patch has been tested on both x86_64 commodity and ES7000 boxes. Signed-off-by: Jason Davis <jason.davis@unisys.com> Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: disable interrupts during SMP bogomips checkingAndi Kleen2005-04-161-4/+0
| | | | | | | | | | | | | Port over a i386 kludge from rusty to x86-64 I don't think it is a full solution, but the upcomming smp bootup rewrite will solve it. This fixes BUGs at bootup on bigger x86-64 systems. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86-64: Fix BUG()Andi Kleen2005-04-161-1/+1
| | | | | | | | Use the correct file name in BUG() Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86-64/i386: Revert cpuinfo siblings behaviour back to 2.6.10Andi Kleen2005-04-162-4/+11
| | | | | | | | | | | | | | | Only display physical id/siblings when there are siblings or dual core. In 2.6.11 I accidentially broke it and it was always displaying these fields But for compatibility to all these /proc parsers around it is better to do it in the old way again. Noticed by Suresh Siddha Cc: <Suresh.b.siddha@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86-64: i386 vDSO: add PT_NOTE segmentRoland McGrath2005-04-161-0/+3
| | | | | | | | Use the i386 PT_NOTE segment in x86_64 as well. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386 vDSO: add PT_NOTE segmentRoland McGrath2005-04-163-3/+31
| | | | | | | | | | | This patch adds an ELF note to the vDSO giving the LINUX_VERSION_CODE value. Having this in the vDSO lets the dynamic linker avoid the `uname' syscall it now always does at startup to ascertain the kernel ABI available. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i386: Use loaddebug macro consistentlyRoland McGrath2005-04-164-13/+9
| | | | | | | | | | | | | | | | This moves the macro loaddebug from asm-i386/suspend.h to asm-i386/processor.h, which is the place that makes sense for it to be defined, removes the extra copy of the same macro in arch/i386/kernel/process.c, and makes arch/i386/kernel/signal.c use the macro in place of its expansion. This is a purely cosmetic cleanup for the normal i386 kernel. However, it is handy for Xen to be able to just redefine the loaddebug macro once instead of also changing the signal.c code. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] i2c-i801: I2C patch for Intel ESB2Jason Gaston2005-04-162-0/+3
| | | | | | | | | | This patch adds the Intel ESB2 DID's to the i2c-i801.c and Kconfig files for I2C support. Signed-off-by:  Jason Gaston <Jason.d.gaston@intel.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ahci: AHCI mode SATA patch for Intel ESB2Jason Gaston2005-04-161-0/+6
| | | | | | | | | | This patch adds the Intel ESB2 DID's to the ahci.c file for AHCI mode SATA support. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Cc: <linux-scsi@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ata_piix: IDE mode SATA patch for Intel ESB2Jason Gaston2005-04-162-0/+15
| | | | | | | | | | This patch adds the Intel ESB2 DID's to the ata_piix.c and quirks.c file for IDE mode SATA support. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] intel8x0: AC'97 audio patch for Intel ESB2Jason Gaston2005-04-161-0/+6
| | | | | | | | | This patch adds the Intel ESB2 DID's to the intel8x0.c file for AC'97 audio support. Signed-off-by:  Jason Gaston <Jason.d.gaston@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] piix: IDE PATA patch for Intel ESB2Jason Gaston2005-04-161-0/+4
| | | | | | | | This patch adds the Intel ESB2 DID's to the piix.c file for IDE PATA support. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] irq and pci_ids: patch for Intel ESB2Jason Gaston2005-04-162-0/+32
| | | | | | | | This patch adds the Intel ESB2 DID's to the irq.c and pci_ids.h files. Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mips: remove #include <linux/audit.h> two timesYoichi Yuasa2005-04-161-1/+0
| | | | | | | | | | This patch removes #include <linux/audit.h>. Because it includes it two times. Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mips: update VR41xx CPU-PCI bridge supportYoichi Yuasa2005-04-165-142/+181
| | | | | | | | | This patch updates NEC VR4100 series CPU-PCI bridge support. Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mips: remove obsolete VR41xx RTC function from vr41xx.hYoichi Yuasa2005-04-161-16/+0
| | | | | | | | | | This patch had removed obsolete VR41xx RTC function from vr41xx.h . I forgot to put this change in "update VR41xx RTC support". Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: no prefetch for NULL pointersOlof Johansson2005-04-161-0/+6
| | | | | | | | | | | | For prefetches of NULL (as when walking a short linked list), PPC64 will in some cases take a performance hit. The hardware needs to do the TLB walk, and said walk will always miss, which means (up to) two L2 misses as penalty. This seems to hurt overall performance, so for NULL pointers skip the prefetch alltogether. Signed-off-by: Olof Johansson <olof@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove -fno-omit-frame-pointerAnton Blanchard2005-04-161-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During some code inspection using gcc 4.0 I noticed a stack frame was being created for a number of functions that didnt require it. For example: c0000000000df944 <._spin_unlock>: c0000000000df944: fb e1 ff f0 std r31,-16(r1) c0000000000df948: f8 21 ff c1 stdu r1,-64(r1) c0000000000df94c: 7c 3f 0b 78 mr r31,r1 c0000000000df950: 7c 20 04 ac lwsync c0000000000df954: e8 21 00 00 ld r1,0(r1) c0000000000df958: 38 00 00 00 li r0,0 c0000000000df95c: 90 03 00 00 stw r0,0(r3) c0000000000df960: eb e1 ff f0 ld r31,-16(r1) c0000000000df964: 4e 80 00 20 blr It turns out we are adding -fno-omit-frame-pointer to ppc64 which is causing the above behaviour. Removing that flag results in much better code: c0000000000d5b30 <._spin_unlock>: c0000000000d5b30: 7c 20 04 ac lwsync c0000000000d5b34: 38 00 00 00 li r0,0 c0000000000d5b38: 90 03 00 00 stw r0,0(r3) c0000000000d5b3c: 4e 80 00 20 blr We dont require a frame pointer to debug on ppc64, so remove it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove bogus f50 hack in prom.cBenjamin Herrenschmidt2005-04-161-6/+0
| | | | | | | | | | | | The code that parses the OF device tree contains an old bogus hack which was killed a long time ago on ppc32, but survived in ppc64. It was supposed to help with a problem on the f50 which is ... a 32 bits machine :) Additionally, that hack is causing problems, so let's just get rid of it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: Detect altivec via firmware on unknown CPUsBenjamin Herrenschmidt2005-04-163-3/+20
| | | | | | | | | | | | | | | | | This patch adds detection of the Altivec capability of the CPU via the firmware in addition to the cpu table. This allows newer CPUs that aren't in the table to still have working altivec support in the kernel. It also fixes a problem where if a CPU isn't recognized as having altivec features, and takes an altivec unavailable exception due to userland issuing altivec instructions, the kernel would happily enable it and context switch the registers ... but not all of them (it would basically forget vrsave). With this patch, the kernel will refuse to enable altivec when the feature isn't detected for the CPU (SIGILL). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: Improve mapping of vDSOBenjamin Herrenschmidt2005-04-163-19/+24
| | | | | | | | | | | | | | | | | | | | This patch reworks the way the ppc64 is mapped in user memory by the kernel to make it more robust against possible collisions with executable segments. Instead of just whacking a VMA at 1Mb, I now use get_unmapped_area() with a hint, and I moved the mapping of the vDSO to after the mapping of the various ELF segments and of the interpreter, so that conflicts get caught properly (it still has to be before create_elf_tables since the later will fill the AT_SYSINFO_EHDR with the proper address). While I was at it, I also changed the 32 and 64 bits vDSO's to link at their "natural" address of 1Mb instead of 0. This is the address where they are normally mapped in absence of conflict. By doing so, it should be possible to properly prelink one it's been verified to work on glibc. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: fix export of wrong symbolPaul Mackerras2005-04-161-1/+1
| | | | | | | | | | | | | | In arch/ppc64/kernel/ppc_ksyms.c, we are still exporting flush_icache_range, but that has been changed to be an inline in include/asm-ppc64/cacheflush.h which calls __flush_icache_range (defined in arch/ppc64/kernel/misc.S). This patch changes the export to __flush_icache_range, thus allowing modules to use the inline flush_icache_range. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: Fix semantics of __ioremapBenjamin Herrenschmidt2005-04-164-16/+18
| | | | | | | | | | | | | | This patch fixes ppc64 __ioremap() so that it stops adding implicitely _PAGE_GUARDED when the cache is not writeback, and instead, let the callers provide the flag they want here. This allows things like framebuffers to explicitely request a non-cacheable and non-guarded mapping which is more efficient for that type of memory without side effects. The patch also fixes all current callers to add _PAGE_GUARDED except btext, which is fine without it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: very basic desktop g5 sound supportBenjamin Herrenschmidt2005-04-168-137/+360
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch hacks the current PowerMac Alsa driver to add some basic support of analog sound output to some desktop G5s. It has severe limitations though: - Only 44100Khz 16 bits - Only work on G5 models using a TAS3004 analog code, that is early single CPU desktops and all dual CPU desktops at this date, but none of the more recent ones like iMac G5. - It does analog only, no digital/SPDIF support at all, no native AC3 support Better support would require a complete rewrite of the driver (which I am working on, but don't hold your breath), to properly support the diversity of apple sound HW setup, including dual codecs, several i2s busses, all the new codecs used in the new machines, proper clock switching with digital, etc etc etc... This patch applies on top of the other PowerMac sound patches I posted in the past couple of days (new powerbook support and sleep fixes). Note: This is a FAQ entry for PowerMac sound support with TI codecs: They have a feature called "DRC" which is automatically enabled for the internal speaker (at least when auto mute control is enabled) which will cause your sound to fade out to nothing after half a second of playback if you don't set a proper "DRC Range" in the mixer. So if you have a problem like that, check alsamixer and raise your DRC Range to something reasonable. Note2: This patch will also add auto-mute of the speaker when line-out jack is used on some earlier desktop G4s (and on the G5) in addition to the headphone jack. If that behaviour isn't what you want, just disable auto-muting and use the manual mute controls in alsamixer. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pmac: Improve sleep code of tumbler driverBenjamin Herrenschmidt2005-04-161-36/+106
| | | | | | | | | | | This patch improves the behaviour of the "tumbler/snapper" driver used on newer PowerMacs during sleep. It properly set the HW mutes to shut down amplifiers and does an analog shutdown of the codec. That might improve power consumption during sleep on a number of machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pmac: sound support for latest laptopsBenjamin Herrenschmidt2005-04-162-19/+53
| | | | | | | | | | | | This patch hacks the current Alsa snd-powermac driver to add support for recent machine models with the tas3004 chip, that is basically new laptop models. The Mac Mini is _NOT_ yet supported by this patch (soon soon ...). The G5s (iMac or Desktop) will need the rewritten sound driver on which I'm working on (I _might_ get a hack for analog only on some G5s on the current driver, but no promise). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: MV643XX ethernet is an option for PegasosBenjamin Herrenschmidt2005-04-162-2/+2
| | | | | | | | | | | | This patch allows Kconfig to build the MV643xx ethernet driver on Pegasos (CONFIG_PPC_MULTIPLATFORM) and adds what I think is a missing fix from Dale's batch, that is remove SA_INTERRUPT and add SA_SHIRQ in there as the interrupt is shared if I understand things correctly. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Fabio Massimo Di Nitto <fabbione@ubuntu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix compilation error in arch/ppc/syslib/open_pic_defs.hBenoit Boissinot2005-04-161-3/+0
| | | | | | | | | | | make defconfig give the following error on ppc (gcc-4): arch/ppc/syslib/open_pic.c:36: error: static declaration of ‘OpenPIC’ follows non-static declaration arch/ppc/syslib/open_pic_defs.h:175: error: previous declaration of ‘OpenPIC’ was here Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix compilation error in include/asm/prom.hBenoit Boissinot2005-04-161-3/+0
| | | | | | | | | | | | | make defconfig give the following error on ppc (gcc-4): arch/ppc/syslib/prom_init.c:120: error: static declaration of ‘prom_display_paths’ follows non-static declaration include/asm/prom.h:17: error: previous declaration of ‘prom_display_paths’ was here arch/ppc/syslib/prom_init.c:122: error: static declaration of ‘prom_num_displays’ follows non-static declaration include/asm/prom.h:18: error: previous declaration of ‘prom_num_displays’ was here Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix compilation error in arch/ppc/kernel/time.cBenoit Boissinot2005-04-161-2/+0
| | | | | | | | | | | | | | | make defconfig give the following error on ppc (gcc-4): arch/ppc/kernel/time.c:92: error: static declaration of ‘time_offset’ follows non-static declaration include/linux/timex.h:236: error: previous declaration of ‘time_offset’ was here The following patch solves it (time_offset is declared in timer.c). Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix compilation error in include/asm-m68k/setup.hBenoit Boissinot2005-04-161-4/+4
| | | | | | | | | | | make defconfig give the following error on ppc (gcc-4): include/asm-m68k/setup.h:365: error: array type has incomplete element type Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Make the Powerstack II Pro4000 boot againLeigh Brown2005-04-161-2/+7
| | | | | | | | | | This patch restores the original behaviour of prep_pcibios_fixup() to only call prep_pib_init() on machines with an openpic. This allows the Powerstack II Pro4000 to boot again. Signed-off-by: Leigh Brown <leigh@solinno.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix building 32bit kernel for 64bit machinesTom Rini2005-04-162-0/+7
| | | | | | | | | | When building a ppc32 MULTIPLATFORM kernel for a 64bit pmac, we try and build certain files or use certain functions that make no sense in that context. This catches the last of these. Signed-off-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix a problem with NTP on !(chrp||gemini)Giovambattista Pulcini2005-04-163-6/+0
| | | | | | | | | | | | | | | | The following problem was found by Giovambattista Pulcini <gpulcini@swintel.it>, who also provided a partial patch, and this has been verified by our time guru Gabriel Paubert <paubert@iram.es>. The problem is that in do_settimeofday() we always set time_state to TIME_ERROR and except on two platforms, never re-set it. This meant that ntp_gettime() and ntp_adjtime() always returned TIME_ERROR, incorrectly. Based on Gabriel's analysis, time_state is used for leap-second processing, and ppc shouldn't be mucking with it. Signed-off-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix mpc8xx watchdogTom Rini2005-04-161-2/+9
| | | | | | | | | | | The CONFIG_8xx_WDT option got broken in the generic hardirq update as ppc32 had its own different request_irq that worked when other arches used setup_irq. This is the trivial fix for the problem. From: Carsten Juttner <carjay@gmx.net> Signed-off-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Support 36-bit physical addressing on e500Kumar Gala2005-04-166-63/+123
| | | | | | | | | | | | | | | | | | | | | | | | To add support for 36-bit physical addressing on e500 the following changes have been made. The changes are generalized to support any physical address size larger than 32-bits: * Allow FSL Book-E parts to use a 64-bit PTE, it is 44-bits of pfn, 20-bits of flags. * Introduced new CPU feature (CPU_FTR_BIG_PHYS) to allow runtime handling of updating hardware register (SPRN_MAS7) which holds the upper 32-bits of physical address that will be written into the TLB. This is useful since not all e500 cores support 36-bit physical addressing. * Currently have a pass through implementation of fixup_bigphys_addr * Moved _PAGE_DIRTY in the 64-bit PTE case to free room for three additional storage attributes that may exist in future FSL Book-E cores and updated fault handler to copy these bits into the hardware TLBs. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Allow adjust of pfn offset in pteKumar Gala2005-04-161-2/+7
| | | | | | | | | | | Allow the pfn to be offset by more than just PAGE_SHIFT in the pte. Today, PAGE_SHIFT tends to allow us to have 12-bits of flags in the pte. In the future if we have a larger pte we can allocate more bits for flags by offsetting the pfn even further. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: make usage of CONFIG_PTE_64BIT & CONFIG_PHYS_64BIT consistentKumar Gala2005-04-162-6/+8
| | | | | | | | | | | | | | | CONFIG_PTE_64BIT & CONFIG_PHYS_64BIT are not currently consistently used in the code base. Fixed up the usage such that CONFIG_PTE_64BIT is used when we have a 64-bit PTE regardless of physical address width. CONFIG_PHYS_64BIT is used if the physical address width is larger than 32-bits, regardless of PTE size. These changes required a few sub-arch specific ifdef's to be fixed and the introduction of a physical address format string. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix pte_update for 64-bit PTEsKumar Gala2005-04-161-4/+25
| | | | | | | | | | | | | | | | | | While the existing pte_update code handled atomically modifying a 64-bit PTE, it did not return all 64-bits of the PTE before it was modified. This causes problems in some places that expect the full PTE to be returned, like ptep_get_and_clear(). Created a new pte_update function that is conditional on CONFIG_PTE_64BIT. It atomically reads the low PTE word which all PTE flags are required to be in and returns a premodified full 64-bit PTE. Since we now have an explicit 64-bit PTE version of pte_update we can also remove the hack that existed to get the low PTE word regardless of size. Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix AGP and sleep againBenjamin Herrenschmidt2005-04-166-56/+193
| | | | | | | | | | | | | | | | | | | | | | | | My previous patch that added sleep support for uninorth-agp and some AGP "off" stuff in radeonfb and aty128fb is breaking some configs. More specifically, it has problems with rage128 setups since the DRI code for these in X doesn't properly re-enable AGP on wakeup or console switch (unlike the radeon DRM). This patch fixes the problem for pmac once for all by using a different approach. The AGP driver "registers" special suspend/resume callbacks with some arch code that the fbdev's can later on call to suspend and resume AGP, making sure it's resumed back in the same state it was when suspended. This is platform specific for now. It would be too complicated to try to do a generic implementation of this at this point due to all sort of weird things going on with AGP on other architectures. We'll re-work that whole problem cleanly once we finally merge fbdev's and DRI. In the meantime, please apply this patch which brings back some r128 based laptops into working condition as far as system sleep is concerned. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: Fix cpufreq problemsBenjamin Herrenschmidt2005-04-165-75/+194
| | | | | | | | | | | | | | | This patch updates the PowerMac cpufreq driver. It depends on the addition of the suspend() method (my previous patch) and on the new flag I defined to silence some warnings that are normal for us. It fixes various issues related to cpufreq on pmac, including some crashes on some models when sleeping the machine while in low speed, proper voltage control on some newer machines, and adds voltage control on 750FX based G3 laptops. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix single-stepping of emulated instructionsPaul Mackerras2005-04-161-0/+1
| | | | | | | | | | | | On ppc, we emulate instructions that cause alignment exceptions. If we are single-stepping an instruction and it causes an alignment exception, we will currently do the next instruction as well before taking the single-step exception. This patch fixes that, so we take the single-step exception after emulating the instruction. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: oops on kernel altivec assist exceptionsPaul Mackerras2005-04-161-0/+7
| | | | | | | | | | | | | | | If we should happen to get an altivec assist exception while executing in the kernel, we will currently try to handle it and fail, and end up oopsing with (apparently) a segfault. (An altivec assist exception occurs for floating-point altivec instructions with denormalized inputs or outputs if the altivec unit is in java mode.) This patch checks explicitly if we are in user mode and prints a useful message if not. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: improve timebase sync for SMPPaul Mackerras2005-04-161-24/+54
| | | | | | | | | | | | | Currently the procedure in the ppc32 kernel that synchronizes the timebase registers across an SMP powermac system does so by setting both timebases to zero. That is OK at boot but causes problems if done later. So that we can do hotplug CPU on these machines, this patch changes the code so it reads the timebase from one CPU and transfers the value to the other CPU. (Hotplug CPU is needed for sleep (aka suspend to RAM) to work.) Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: ppc4xx_pic - add acknowledge when enabling level-sensitive IRQEugene Surovegin2005-04-161-1/+4
| | | | | | | | | | | | | | | | | | This patch adds interrupt acknowledge to the PPC4xx PIC enable_irq implementation for level-sensitive IRQ sources. This helps in cases when enable/disable_irq is used in interrupt handlers for hardware, which requires IRQ acknowledge to be issued from non-interrupt context (e.g. when actual ACK in device needs an I2C transaction). For such strange hardware, interrupt handler disables IRQ and defers actual ACK to some other context. When this happens, IRQ is enabled again. For level-sensitive sources we get spurious triggering right after IRQ is enabled. This patch fixes this. Suggested by Tolunay Orkun <listmember@orkun.us>. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: fix bogosity in process-freezing codePaul Mackerras2005-04-161-3/+1
| | | | | | | | | | | The code that went into arch/ppc/kernel/signal.c recently to handle process freezing seems to contain a dubious assumption: that a process that calls do_signal when PF_FREEZE is set will have entered the kernel because of a system call. This patch removes that assumption. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SELinux: add support for NETLINK_KOBJECT_UEVENTJames Morris2005-04-166-0/+39
| | | | | | | | | | | | | | | | This patch adds SELinux support for the KOBJECT_UEVENT Netlink family, so that SELinux can apply finer grained controls to it. For example, security policy for hald can be locked down to the KOBJECT_UEVENT Netlink family only. Currently, this family simply defaults to the default Netlink socket class. Note that some new permission definitions are added to sync with changes in the core userspace policy package, which auto-generates header files. Signed-off-by: James Morris <jmorris@redhat.com> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] irda_device() oops fixJean Tourrilhes2005-04-161-2/+9
| | | | | | Acked-by: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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