- 09 2月, 2010 6 次提交
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由 Jeremy Kerr 提交于
The boot_param_header has big-endian fields, so change the types to __be32, and perform endian conversion when we access them. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Jeremy Kerr 提交于
At present, the fdt code sets the kernel-wide initrd_start and initrd_end variables when parsing /chosen. On ARM, we only set these once the bootmem has been reserved. This change adds an arch hook to setup the initrd from the device tree: void early_init_dt_setup_initrd_arch(unsigned long start, unsigned long end); The arch-specific code can then setup the initrd however it likes. Compiled on powerpc, with CONFIG_BLK_DEV_INITRD=y and =n. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze architectures. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Grant Likely 提交于
machine is compatible is an OF-specific call. It should have the of_ prefix to protect the global namespace. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Jeremy Kerr 提交于
Merge common function between powerpc, sparc and microblaze. Code is identical for powerpc and microblaze, but adds a lock (and release) of the devtree_lock on sparc. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 29 1月, 2010 3 次提交
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由 Grant Likely 提交于
In struct device_node, the phandle is named 'linux_phandle' for PowerPC and MicroBlaze, and 'node' for SPARC. There is no good reason for the difference, it is just an artifact of the code diverging over a couple of years. This patch renames both to simply .phandle. Note: the .node also existed in PowerPC/MicroBlaze, but the only user seems to be arch/powerpc/platforms/powermac/pfunc_core.c. It doesn't look like the assignment between .linux_phandle and .node is significantly different enough to warrant the separate code paths unless ibm,phandle properties actually appear in Apple device trees. I think it is safe to eliminate the old .node property and use phandle everywhere. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NDavid S. Miller <davem@davemloft.net> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and MicroBlaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 15 1月, 2010 6 次提交
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由 Nathan Fontenot 提交于
Move the defintion and lock helper routines for the cpu hotplug driver lock from pseries to powerpc code to avoid build breaks for platforms other than pseries that use cpu hotplug. Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com> Acked-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Nathan Fontenot 提交于
It looks like the previous patch sent out to move RTAS and other items from /proc/ppc64 to /proc/powerpc missed a few files needed for RAS and DLPAR functionality. Original Patch here: http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-September/076096.html This patch updates the remaining files to be created under /proc/powerpc. Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
The newly added fixup for buggy dcbX insn's has a bug that always trigger a kernel TLB walk so a user space dcbX insn will cause a Kernel Machine Check if it hits DTLB error. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Stefan Roese 提交于
We noticed that recent kernels didn't boot on our 1GHz Canyonlands 460EX boards anymore. As it seems, patch 8d165db1 [powerpc: Improve decrementer accuracy] introduced this problem. The routine div_sc() overflows with shift = 32 resulting in this incorrect setup: time_init: decrementer frequency = 1000.000012 MHz time_init: processor frequency = 1000.000012 MHz clocksource: timebase mult[400000] shift[22] registered clockevent: decrementer mult[33] shift[32] cpu[0] This patch now introduces a local div_dc64() version of this function so that this overflow doesn't happen anymore. Signed-off-by: NStefan Roese <sr@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Detlev Zundel <dzu@denx.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Vorontsov 提交于
It seems there is a thinko in the TLB invalidation code that makes the tlbie in the loop executed just once. The intended check was probably 'gt', not 'lt'. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
Various kernel asm modifies SRR0/SRR1 just before executing a rfi. If such code crosses a page boundary you risk a TLB miss which will clobber SRR0/SRR1. Avoid this by always pinning kernel instruction TLB space. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 18 12月, 2009 1 次提交
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由 Neil Campbell 提交于
This patch fixes the handling of VSX alignment faults in little-endian mode (the current code assumes the processor is in big-endian mode). The patch also makes the handlers clear the top 8 bytes of the register when handling an 8 byte VSX load. This is based on 2.6.32. Signed-off-by: NNeil Campbell <neilc@linux.vnet.ibm.com> Cc: <stable@kernel.org> Acked-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 17 12月, 2009 1 次提交
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由 Benjamin Herrenschmidt 提交于
The cardbus code creates PCI devices without ever going through the necessary fixup bits and pieces that normal PCI devices go through. There's in fact a commented out call to pcibios_fixup_bus() in there, it's commented because ... it doesn't work. I could make pcibios_fixup_bus() do the right thing on powerpc easily but I felt it cleaner instead to provide a specific hook pci_fixup_cardbus for which a weak empty implementation is provided by the PCI core. This fixes cardbus on powerbooks and probably all other PowerPC platforms which was broken completely for ever on some platforms and since 2.6.31 on others such as PowerBooks when we made the DMA ops mandatory (since those are setup by the fixups). Acked-by: NDominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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- 16 12月, 2009 2 次提交
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由 Akinobu Mita 提交于
Use bitmap library and kill some unused iommu helper functions. 1. s/iommu_area_free/bitmap_clear/ 2. s/iommu_area_reserve/bitmap_set/ 3. Use bitmap_find_next_zero_area instead of find_next_zero_area This cannot be simple substitution because find_next_zero_area doesn't check the last bit of the limit in bitmap 4. Remove iommu_area_free, iommu_area_reserve, and find_next_zero_area Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Oleg Nesterov 提交于
Suggested by Roland. Implement user_single_step_siginfo() for powerpc. Signed-off-by: NOleg Nesterov <oleg@redhat.com> Acked-by: NRoland McGrath <roland@redhat.com> Cc: <linux-arch@vger.kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 15 12月, 2009 5 次提交
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由 Rusty Russell 提交于
powerpc applies relocations to the kcrctab. They're absolute symbols, but it's not completely unreasonable: other archs may too, but the relocation is often 0. http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-November/077972.htmlInspired-by: NNeil Horman <nhorman@tuxdriver.com> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Tested-by: NNeil Horman <nhorman@tuxdriver.com> Acked-by: NPaul Mackerras <paulus@samba.org>
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由 Thomas Gleixner 提交于
Convert locks which cannot be sleeping locks in preempt-rt to raw_spinlocks. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPeter Zijlstra <peterz@infradead.org> Acked-by: NIngo Molnar <mingo@elte.hu>
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由 Thomas Gleixner 提交于
Name space cleanup. No functional change. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPeter Zijlstra <peterz@infradead.org> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
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由 Thomas Gleixner 提交于
Further name space cleanup. No functional change Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPeter Zijlstra <peterz@infradead.org> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
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由 Thomas Gleixner 提交于
The raw_spin* namespace was taken by lockdep for the architecture specific implementations. raw_spin_* would be the ideal name space for the spinlocks which are not converted to sleeping locks in preempt-rt. Linus suggested to convert the raw_ to arch_ locks and cleanup the name space instead of using an artifical name like core_spin, atomic_spin or whatever No functional change. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NPeter Zijlstra <peterz@infradead.org> Acked-by: NDavid S. Miller <davem@davemloft.net> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: linux-arch@vger.kernel.org
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- 13 12月, 2009 2 次提交
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由 Albert Herranz 提交于
Add support for using the USB Gecko adapter as an early debugging console on the Nintendo GameCube and Wii video game consoles. The USB Gecko is a 3rd party memory card interface adapter that provides a EXI (External Interface) to USB serial converter. Signed-off-by: NAlbert Herranz <albert_herranz@yahoo.es> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Albert Herranz 提交于
This patch extends the cputable entry of the 750CL to also match the 750CL-based "Broadway" cpu found on the Nintendo Wii. As of this patch, the following "Broadway" design revision levels have been seen in the wild: - DD1.2 (87102) - DD2.0 (87200) Signed-off-by: NAlbert Herranz <albert_herranz@yahoo.es> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 11 12月, 2009 6 次提交
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由 Al Viro 提交于
New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: NDavid S. Miller <davem@davemloft.net> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze. This patch splits the arch-specific stuff out into a new function, early_init_dt_scan_chosen_arch(). Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
A cell is firmly established as a u32. No need to do an ugly typedef to redefine it to cell_t. Eliminate the unnecessary typedef so that it doesn't have to be added to the of_fdt header file Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: NWolfram Sang <w.sang@pengutronix.de>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 09 12月, 2009 8 次提交
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由 Benjamin Herrenschmidt 提交于
e821ea70 introduced a bug by copying some 64-bit originated code as-is to be used by both 32 and 64-bit but this code contains a 64-bit ony "cmpdi" instruction. This changes it to cmpwi, which is fine since VRSAVE can only contains a 32-bit value anyway. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@kernel.org>
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由 Roman Fietze 提交于
Writing a driver using SCLPC on the MPC5200B I detected, that the intspec arrays to map irqs to Linux virq cannot be const, because the mapping and xlate functions only take non const pointers. All those functions do not modify the intspec, so a const pointer could be used. Signed-off-by: NRoman Fietze <roman.fietze@telemotive.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
Use symbolic constant for PRESENT and avoid branching. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
There is no need to do set the DIRTY bit directly in DTLB Error. Trap to do_page_fault() and let the generic MM code do the work. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
Now that 8xx can fixup dcbX instructions, start using them where possible like every other PowerPc arch do. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
8xx has not had WRITETHRU due to lack of bits in the pte. After the recent rewrite of the 8xx TLB code, there are two bits left. Use one of them to WRITETHRU. Perhaps use the last SW bit to PAGE_SPECIAL or PAGE_FILE? Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
only DTLB Miss did set this bit, DTLB Error needs too otherwise the setting is lost when the page becomes dirty. Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Joakim Tjernlund 提交于
This is an assembler version to fixup DAR not being set by dcbX, icbi instructions. There are two versions, one uses selfmodifing code, the other uses a jump table but is much bigger(default). Signed-off-by: NJoakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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