- 22 9月, 2006 1 次提交
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由 Vitaly Bordug 提交于
This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: NVitaly Bordug <vbordug@ru.mvista.com>
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- 21 9月, 2006 1 次提交
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由 Vitaly Bordug 提交于
This patch contains necessary modifications to support the CPM2 SoC peripherals. For the time being, those are fs_enet Ethernet driver and cpm_uart serial. Written initially to support mpc8560, it also suites to the part of the large PQ2 (more specifically, mpc8260) family. Signed-off-by: NVitaly Bordug <vbordug@ru.mvista.com>
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- 14 9月, 2006 2 次提交
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由 Kim Phillips 提交于
Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18 per Tanya's catch. Signed-off-by: NKim Phillips <kim.phillips@freescale.com> Signed-off-by: NTanya Jiang <tanya.jiang@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
This fixes a compile error that only surfaces on CONFIG_SMP=n builds; <asm/hvcall.h> seems to get pulled in through another header file for SMP builds. This problem was introduced by the hvcall stats patch. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 13 9月, 2006 12 次提交
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由 Benjamin Herrenschmidt 提交于
It seems that the occasional data corruption observed with the tg3 driver wasn't due to missing barriers after all, but rather seems to be due to the DART (= IOMMU) in the U4 northbridge reading stale IOMMU table entries from memory due to a race. This fixes it by making the CPU read the entry back from memory before using it. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This changes the writeX family of functions to have a sync instruction before the MMIO store rather than after, because the generally expected behaviour is that the device receiving the MMIO store can be guaranteed to see the effects of any preceding writes to normal memory. To preserve ordering between writeX and readX, and to preserve ordering between preceding stores and the readX, the readX family of functions have had an sync added before the load. Although writeX followed by spin_unlock is not officially guaranteed to keep the writeX inside the spin-locked region unless an mmiowb() is used, there are currently drivers that depend on the previous behaviour on powerpc, which was that the mmiowb wasn't actually required. Therefore we have a per-cpu flag that is set by writeX, cleared by __raw_spin_lock and mmiowb, and tested by __raw_spin_unlock. If it is set, __raw_spin_unlock does a sync and clears it. This changes both 32-bit and 64-bit readX/writeX. 32-bit already has a sync in __raw_spin_unlock (since lwsync doesn't exist on 32-bit), and thus doesn't need the per-cpu flag. Tested on G5 (PPC970) and POWER5. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 David Howells 提交于
Export copy_4K_page() for use by modules via copy_page() (such as CacheFiles). Signed-Off-By: NDavid Howells <dhowells@redhat.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olaf Hering 提交于
xmon does not print a backtrace per default. This is bad on systems with USB keyboard, the most needed info about the crash is lost. print a backtrace during the very first xmon entry. Booting with xmon=nobt disables the autobacktrace functionality. Signed-off-by: NOlaf Hering <olaf@aepfle.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mike Kravetz 提交于
Add instrumentation for hypervisor calls on pseries. Call statistics include number of calls, wall time and cpu cycles (if available) and are made available via debugfs. Instrumentation code is behind the HCALL_STATS config option and has no impact if not enabled. Signed-off-by: NMike Kravetz <kravetz@us.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Base patch for PA6T and PA6T-1682M. This introduces the arch/powerpc/platform/pasemi directory, together with basic implementations for various setup. Much of this was based on other platform code, i.e. Maple, etc. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Introduce PWRficient PA6T cputable entries and feature bits. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Olof Johansson 提交于
Reduce default cacheline size on 64-bit powerpc from 128 bytes to 64. This is the architected minimum. In most cases we'll still end up using cache line information from the device tree, but defaults are used during early boot and doing a few dcbst/icbi's too many there won't do any harm. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Will Schmidt 提交于
In an attempt to make it easier for a power5 optimized app to run on a power4 or a 970 or random earlier machine, this provides emulation of the popcntb instruction. Signed-off-by: NWill Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
As part of the new irq code pseries_kexec_cpu_down() was split into a xics and mpic version. The vpa unregister logic is now only done in the xics routine, and although that's ok in practice (we don't have SPLPAR machines with mpic), I'd rather have the two concepts stay separate. So move the vpa unregister into pseries_kexec_cpu_down(), which gets called by both the xics and mpic routines. This also gives us an obvious place to put any new kexec-down logic needed in future. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Mohan Kumar M 提交于
Call chip->eoi(irq) to clear any pending interrupt in case of kdump shutdown sequence. chip->end(irq) does not serve this purpose. Signed-off-by: NMohan Kumar M <mohan@in.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jon Loeliger 提交于
Ben speaks; we follow. Signed-off-by: NJon Loeliger <jdl@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 12 9月, 2006 4 次提交
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由 Al Viro 提交于
Take default arch/*/kernel/audit.c to lib/, have those with special needs (== biarch) define AUDIT_ARCH in their Kconfig. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
add support for AUDIT_PERM predicate Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 10 9月, 2006 1 次提交
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由 Paul Mackerras 提交于
Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 04 9月, 2006 1 次提交
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由 Benjamin Herrenschmidt 提交于
New sparse caught that typo which could have caused erratic hardware behaviour on some machines if the platform functions are used by the firmware to change bits in some FCR registers. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 02 9月, 2006 1 次提交
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由 Benjamin Herrenschmidt 提交于
The port to genirq & the new powerpc interrupt model in 2.6.18 introduced a bug in the legacy PowerMac PIC code (used on older machines) because of a typo potentially causing hangs due to interrupt storms. This fixes it, along with a performance issue causing us to do spurrious retriggers after masking an interrupt. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 31 8月, 2006 2 次提交
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由 Paul Mackerras 提交于
This fixes a hang on ppc32. The problem was that I was comparing a 32-bit quantity with a 64-bit quantity, and consequently time wasn't advancing. This makes us use a 64-bit quantity on all platforms, which ends up simplifying the code since we can now get rid of the tb_last_stamp variable (which actually fixes another bug that Ben H and I noticed while going carefully through the code). This works fine on my G4 tibook. Let me know how it goes on your machines. Acked-by: NOlaf Hering <olaf@aepfle.de> Acked-by: NMikael Pettersson <mikpe@it.uu.se> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Paul Mackerras 提交于
As pointed out by Herbert Xu <herbert@gondor.apana.org.au>, our memcpy implementation didn't return the destination pointer as its return value, and there is code in the kernel that expects that. This fixes it. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 30 8月, 2006 12 次提交
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由 Paul Mackerras 提交于
Eran Ben-Avi <eranpublic@yahoo.com> pointed out that the arch/ppc version of smp_generic_take_timebase disables interrupts on entry but exits without restoring them. However, both it and the arch/powerpc version have another problem, which is that they use local_irq_disable/enable rather than local_irq_save/restore, and they are called with interrupts disabled. This fixes both problems; it changes a return to a break in the arch/ppc version, and changes both versions to use local_irq_save/restore. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This fixes a problem introduced in 5db9fa95. The last_jiffy per-cpu variable is only 32 bits on 32-bit machines, but it was being compared with a 64-bit quantity (tb_next_jiffy), which resulted in time not advancing. This fixes it by changing last_jiffy to be 64 bits on all platforms. With this, we no longer need tb_last_stamp as a 32-bit version of tb_last_jiffy, so this gets rid of tb_last_stamp and we just use tb_last_jiffy instead. This also fixes a bug when the boot cpu is not online, because using tb_last_stamp could have caused the wrong timebase origin value to be used when calculating the time of day. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Paul Mackerras 提交于
This code got moved from head.S but the copyright notice on head.S didn't get transferred with it. Noticed by Cort Dougan <cort@fsmlabs.com>. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Will Schmidt 提交于
This problem was noticed by one of the Phyp firmware folks. Our ibm,client-architecture-support call was failing. This corrects the vector length parameters being passed in. Signed-off-by: NWill Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
Device-tree bugs on js20 with some versions of SLOF were causing the interrupt for IDE to not be parsed correctly and fail to boot. This patch adds a bit more sanity checking to the parser to detect some of those errors and fail instead of returning bogus information. The powerpc PCI code can then trigger a fallback that works on those machines. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Zang Roy-r61911 提交于
This adds a new hardware information table for mpic. This enables the mpic code to deal with mpic controllers with different register layouts and hardware behaviours. This introduces CONFIG_MPIC_WEIRD. For boards with non standard mpic controllers, select CONFIG_MPIC_WEIRD and add its hardware information in the mpic_infos[] array. TSI108/109 PIC takes the first index of weird hardware information table. :) The table can be extended. The Tsi108/109 PIC looks like standard OpenPIC but, in fact, is different in register mapping and behavior. The patch does not affect the behavior of standard mpic. If CONFIG_MPIC_WEIRD is not defined, the code is essentially identical to the current code. [benh@kernel.crashing.org: This patch is a slightly cleaned up version of Zang Roy's support for the TSI108 MPIC variant. It also fixes up MPC7448_hpc2 to use the new version of the type macros and changes the way MPIC is selected in Kconfig to better match what is done for other system devices. ] Signed-off-by: NRoy Zang <tie-fei.zang@freescale.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
When reworking the powerpc irq code, I figured out that we were using the radix tree in a racy way. As a temporary fix, I put a spinlock in there. However, this can have a significant impact on performances. This patch reworks that to use a smarter technique based on the fact that what we need is in fact a rwlock with extremely rare writers (thus optimized for the read path). Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Zang Roy-r61911 提交于
This patch adds the mpc7448hpc2 device tree source file. Signed-off-by: NRoy Zang <tie-fei.zang@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Kim Phillips 提交于
Add MPC8349E MDS device tree source file to arch/powerpc/boot/dts Signed-off-by: NKim Phillips <kim.phillips@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Kim Phillips 提交于
This fixes MPC834x MDS (formerly SYS) and ITX platform code to get IRQ data (including PCI) from the device tree, and to use the new IPIC code. renamed defconfig (sys -> mds), left one redundant NULL assignment in mpc83xx_pcibios_fixup to keep the compiler happy. Signed-off-by: NKim Phillips <kim.phillips@freescale.com> Signed-off-by: NLi Yang <leoli@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Kim Phillips 提交于
This converts ipic code to Benh's IRQ mods. For the IPIC, IRQ sense values in the device tree equal those in include/linux/irq.h; that's 8 for low assertion (most internal IRQs on mpc83xx), and 2 for high-to-low change. spinlocks added to [un]mask, ack operations; default handler and type now set in host_map; and redundant condition check eliminated. Signed-off-by: NKim Phillips <kim.phillips@freescale.com> Signed-off-by: NLi Yang <leoli@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Kim Phillips 提交于
Keep from breaking 83xx arch/ppc build. Back up old school arch/powerpc/sysdev/ipic.[hc] to arch/ppc/syslib. Signed-off-by: NKim Phillips <kim.phillips@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 25 8月, 2006 3 次提交
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由 Jon Loeliger 提交于
After going through the trouble of setting up the PIC base address in the pic@40000 device tree node, use it instead of the obsolete hard-coded value. Signed-off-by: NJon Loeliger <jdl@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Jon Loeliger 提交于
Signed-off-by: NJon Loeliger <jdl@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Matt Porter 提交于
The PIN_SIZE definition name changed, update 44x_mmu.c accordingly. Signed-off-by: NMatt Porter <mporter@embeddedalley.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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