- 12 5月, 2008 1 次提交
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由 Segher Boessenkool 提交于
arch/ppc doesn't have prom_init.o (anymore). Signed-off-by: NSegher Boessenkool <segher@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 29 4月, 2008 1 次提交
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由 Zhang Wei 提交于
This initializes the RapidIO controller driver using addresses and interrupt numbers obtained from the firmware device tree, rather than using hardcoded constants. Signed-off-by: NZhang Wei <wei.zhang@freescale.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 24 4月, 2008 1 次提交
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由 Michael Ellerman 提交于
As BenH said the other day, it is an "accident" that prom_init.o is linked with the rest of the kernel. The truth is a little more subtle, prom_init isn't truly bootloader, it does access kernel data in a few places. What we can do is discourage people from adding new code that accesses data outside of prom_init. And hence this patch; from the script: # This script checks prom_init.o to see what external symbols it # is using, if it finds symbols not in the whitelist it returns # an error. The point of this is to discourage people from # intentionally or accidentally adding new code to prom_init.c # which has side effects on other parts of the kernel. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 18 4月, 2008 1 次提交
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由 Christoph Hellwig 提交于
This adds stacktrace support for powerpc, which will be needed for lockdep. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 17 4月, 2008 1 次提交
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由 Matthew Wilcox 提交于
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Acked-by: NIngo Molnar <mingo@elte.hu>
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- 14 2月, 2008 1 次提交
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由 Kumar Gala 提交于
vmlinux.lds and dtc-parser.tab.h get created but never cleaned up. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 07 2月, 2008 2 次提交
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由 Roland McGrath 提交于
This switches the CONFIG_PPC64 support for 32-bit ELF to use the generic fs/compat_binfmt_elf.c implementation instead of our own binfmt_elf32.c. Since so much is the same between 32/64, there is only one macro we have to define to make the generic support work out of the box. Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Roland McGrath 提交于
This provides the task_user_regset_view entry point and support for all the native-mode (64 on CONFIG_PPC64, 32 on CONFIG_PPC32) thread register state. This will enable generic machine-independent code to access user-mode threads' registers for debugging and dumping. Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 24 1月, 2008 1 次提交
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由 Kumar Gala 提交于
Do just enough to move the RapidIO support code for 85xx over from arch/ppc into arch/powerpc and make it still build. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 17 1月, 2008 1 次提交
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由 Stephen Rothwell 提交于
Also check that __NR_syscalls has been updated appropriately. Hopefully this will catch any out of order additions to the table in the future. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 20 12月, 2007 1 次提交
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由 Stephen Rothwell 提交于
We were using -mno-minimal-toc on everything in arch/powerpc/kernel, which means that all the functions in there were putting all their TOC entries in the top-level TOC, and it was overflowing on an allyesconfig build. For various reasons, prom_init.c does need -mno-minimal-toc, but the other .c files in there can use sub-TOCs quite happily. This change is sufficient for now to stop the TOC overflowing; other directories under arch/powerpc also use -mno-minimal-toc and could also be changed later if necessary. Lmbench runs with and without this patch showed no significant speed differences. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 05 10月, 2007 1 次提交
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由 Scott Wood 提交于
Previously, Soft_emulate_8xx was called with no implementation, resulting in build failures whenever building 8xx without math emulation. The implementation is copied from arch/ppc to resolve this issue. However, this sort of minimal emulation is not a very good idea other than for compatibility with existing userspaces, as it's less efficient than soft-float and can mislead users into believing they have soft-float. Thus, it is made a configurable option, off by default. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 04 10月, 2007 1 次提交
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由 Paul Mackerras 提交于
Commit 8112753b made 44x in ARCH=powerpc builds use cpu setup routines in cpu_setup_44x.S, but didn't make a similar change for ARCH=ppc, and consequently the ARCH=ppc builds fail with undefined symbols (since both use the same cputable.c). This fixes it by including cpu_setup_44x.S in the ARCH=ppc builds, and by taking out the now-redundant FPU initialization in arch/ppc/kernel/head_44x.S. Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 03 10月, 2007 3 次提交
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由 Valentine Barshak 提交于
This adds cpu_setup functionality for ppc44x platform. Low level cpu-spefic initialization routines should be placed in cpu_setup_44x.S and a callback should be added to cputable. The cpu_setup is invoked by identify_cpu() function at early init. Signed-off-by: NValentine Barshak <vbarshak@ru.mvista.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Stephen Rothwell 提交于
Linus made this suggestion for the x86 merge and this starts the process for powerpc. We assume that CONFIG_PPC64 implies CONFIG_PPC_MERGE and CONFIG_PPC_STD_MMU_32 implies CONFIG_PPC_STD_MMU. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Domen Puncer 提交于
This provides an implementation of the <linux/clk.h> interface for arch/powerpc using a set of function pointers in clk_functions. Platforms that want to support this interface should fill clk_functions and select CONFIG_PPC_CLOCK in Kconfig. Signed-off-by: NDomen Puncer <domen.puncer@telargo.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 22 8月, 2007 1 次提交
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由 Stephen Rothwell 提交于
We need to have xLparMap in head_64.S so that it is at a fixed address (because the linker will not resolve (address & 0xffffffff) for us). But the assembler miscalculates the KERNEL_VSID() expressions. So put the confusing expressions into asm-offsets.c. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 20 8月, 2007 1 次提交
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由 Josh Boyer 提交于
4xx is a bit of a misnomer for certain things, as they really apply to PowerPC 40x only. Rename some of the files to clean this up. Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: NDavid Gibson <david@gibson.dropbear.id.au>
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- 15 8月, 2007 1 次提交
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由 Roland McGrath 提交于
ppc64 does the unusual thing of using #include on a compiler-generated assembly file (lparmap.s) from an assembly source file (head_64.S). This runs afoul of my recent patch to pass -gdwarf2 to the assembler under CONFIG_DEBUG_INFO. This patch avoids the problem by disabling DWARF generation (-g0) when producing lparmap.s. Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 30 7月, 2007 1 次提交
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由 Rafael J. Wysocki 提交于
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid confusion (among other things, with CONFIG_SUSPEND introduced in the next patch). Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 6月, 2007 1 次提交
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由 Kumar Gala 提交于
Make the pci_controller struct use global_number for the PHB domain number instead of index to match what ppc64 does and reuse its pci_domain_nr code. Introduced a pci-common.c to handle shared code between ppc32 & ppc64. Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 14 6月, 2007 2 次提交
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由 Benjamin Herrenschmidt 提交于
This patch moves the code in signal_32.c and signal_64.c for handling syscall restart into a common signal.c file and converge around a single implementation that is based on the 32 bits one, using trap, ccr and r3 rather than the special "result" field for deciding what to do. The "result" field is now pretty much deprecated. We still set it for the sake of whatever might rely on it in userland but we no longer use it's content. This, along with a previous patch that enables ptracers to write to "trap" and "orig_r3" should allow gdb to properly handle syscall restarting. 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
This rewrites pretty much from scratch the handling of MMIO and PIO space allocations on powerpc64. The main goals are: - Get rid of imalloc and use more common code where possible - Simplify the current mess so that PIO space is allocated and mapped in a single place for PCI bridges - Handle allocation constraints of PIO for all bridges including hot plugged ones within the 2GB space reserved for IO ports, so that devices on hotplugged busses will now work with drivers that assume IO ports fit in an int. - Cleanup and separate tracking of the ISA space in the reserved low 64K of IO space. No ISA -> Nothing mapped there. I booted a cell blade with IDE on PIO and MMIO and a dual G5 so far, that's it :-) With this patch, all allocations are done using the code in mm/vmalloc.c, though we use the low level __get_vm_area with explicit start/stop constraints in order to manage separate areas for vmalloc/vmap, ioremap, and PCI IOs. This greatly simplifies a lot of things, as you can see in the diffstat of that patch :-) A new pair of functions pcibios_map/unmap_io_space() now replace all of the previous code that used to manipulate PCI IOs space. The allocation is done at mapping time, which is now called from scan_phb's, just before the devices are probed (instead of after, which is by itself a bug fix). The only other caller is the PCI hotplug code for hot adding PCI-PCI bridges (slots). imalloc is gone, as is the "sub-allocation" thing, but I do beleive that hotplug should still work in the sense that the space allocation is always done by the PHB, but if you unmap a child bus of this PHB (which seems to be possible), then the code should properly tear down all the HPTE mappings for that area of the PHB allocated IO space. I now always reserve the first 64K of IO space for the bridge with the ISA bus on it. I have moved the code for tracking ISA in a separate file which should also make it smarter if we ever are capable of hot unplugging or re-plugging an ISA bridge. This should have a side effect on platforms like powermac where VGA IOs will no longer work. This is done on purpose though as they would have worked semi-randomly before. The idea at this point is to isolate drivers that might need to access those and fix them by providing a proper function to obtain an offset to the legacy IOs of a given bus. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 08 5月, 2007 1 次提交
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由 Michael Ellerman 提交于
This provides the architecture specific hooks to support MSI on powerpc. We implement the newly added arch_setup_msi_irqs() and arch_teardown_msi_irqs(), and then delegate to ppc_md routines. Platforms that don't implement MSI will leave the ppc_md calls blank, arch_msi_check_device() will detect this and return ENOSYS. Drivers should detect this error and continue to use LSI. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 07 5月, 2007 1 次提交
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由 Johannes Berg 提交于
Powermac G5 suspend to disk implementation. The code is platform agnostic but only tested on powermac, no other 64-bit powerpc machines. Because nvidiafb still breaks suspend I have marked it EXPERIMENTAL on powermac and because I can't test it and some lowlevel code will need changes it is BROKEN on all other 64-bit platforms. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 03 5月, 2007 1 次提交
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由 Vivek Goyal 提交于
o __pa() should be used only on kernel linearly mapped virtual addresses and not on kernel text and data addresses. o Hibernation code needs to determine the physical address associated with kernel symbol to mark a section boundary which contains pages which don't have to be saved and restored during hibernate/resume operation. o Move this piece of code in arch dependent section. So that architectures which don't have kernel text/data mapped into kernel linearly mapped region can come up with their own ways of determining physical addresses associated with a kernel text. Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de>
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- 02 5月, 2007 1 次提交
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由 Johannes Berg 提交于
In commit 0fba3a1f (a very long time ago, May 2006), I fixed a bug that caused powermacs to crash when you tried entering standby/mem suspend states. As I'm now getting more familiar with the suspend code I notice a few more things: 1. we previously misunderstood what pm_ops is for, it isn't supposed to be for doing platform dependent suspend/resume stuff that needs to be done for suspend to disk (as we currently try to use it!), it is instead for entering platform dependent suspend states ("standby", "mem"). 2. due to the first point, we never properly save FPU and altivec states when suspending to disk. It probably hasn't hurt yet because the process that writes the "disk" to /sys/power/state uses neither and its context is used. This patch addresses these points as follows: 1. remove all pm_ops from powermac, powermac suspend to ram isn't currently usable via /sys/power/state but is done via the PMU instead. 2. move the code responsible for storing FPU/altivec state into save_processor_state and the set_context() call to restore_processor_state. 3. add a call to kernel_enable_spe() It may look like there is some code removal missing but that is actually because the new suspend.h file overrides the ppc/suspend.h one which was previously used. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 3月, 2007 1 次提交
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 07 2月, 2007 1 次提交
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由 Olof Johansson 提交于
Powersave support on PA6T. Right now it only uses 'doze' mode, and will default to no savings (spin). Signed-off-by: NOlof Johansson <olof@lixom.net> Acked-by: NArnd Bergmann <arnd@arndb.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 08 12月, 2006 1 次提交
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由 Stephen Rothwell 提交于
This dependency was inadvertantly removed in a previous patch (e73aedba). Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 04 12月, 2006 6 次提交
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Benjamin Herrenschmidt 提交于
powerpc: Merge 32 and 64 bits asm-powerpc/io.h The rework on io.h done for the new hookable accessors made it easier, so I just finished the work and merged 32 and 64 bits io.h for arch/powerpc. arch/ppc still uses the old version in asm-ppc, there is just too much gunk in there that I really can't be bothered trying to cleanup. 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
This patch reworks the way iSeries hooks on PCI IO operations (both MMIO and PIO) and provides a generic way for other platforms to do so (we have need to do that for various other platforms). While reworking the IO ops, I ended up doing some spring cleaning in io.h and eeh.h which I might want to split into 2 or 3 patches (among others, eeh.h had a lot of useless stuff in it). A side effect is that EEH for PIO should work now (it used to pass IO ports down to the eeh address check functions which is bogus). Also, new are MMIO "repeat" ops, which other archs like ARM already had, and that we have too now: readsb, readsw, readsl, writesb, writesw, writesl. In the long run, I might also make EEH use the hooks instead of wrapping at the toplevel, which would make things even cleaner and relegate EEH completely in platforms/iseries, but we have to measure the performance impact there (though it's really only on MMIO reads) Since I also need to hook on ioremap, I shuffled the functions a bit there. I introduced ioremap_flags() to use by drivers who want to pass explicit flags to ioremap (and it can be hooked). The old __ioremap() is still there as a low level and cannot be hooked, thus drivers who use it should migrate unless they know they want the low level version. The patch "arch provides generic iomap missing accessors" (should be number 4 in this series) is a pre-requisite to provide full iomap API support with this patch. 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
This patch completely refactors DMA operations for 64 bits powerpc. 32 bits is untouched for now. We use the new dev_archdata structure to add the dma operations pointer and associated data to struct device. While at it, we also add the OF node pointer and numa node. In the future, we might want to look into merging that with pci_dn as well. The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced by a set of generic iommu and direct DMA ops (non PCI specific) that can be used by bus types. The toplevel implementation is now inline. 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
This patch first splits of_device.c and of_platform.c, the later containing the bits relative to of_platform_device's. On the "breaks" side of things, drivers uisng of_platform_device(s) need to include asm/of_platform.h now and of_(un)register_driver is now of_(un)register_platform_driver. In addition to a few utility functions to locate of_platform_device(s), the main new addition is of_platform_bus_probe() which allows the platform code to trigger an automatic creation of of_platform_devices for a whole tree of devices. The function acts based on the type of the various "parent" devices encountered from a provided root, using either a default known list of bus types that can be "probed" or a passed-in list. It will only register devices on busses matching that list, which mean that typically, it will not register PCI devices, as expected (since they will be picked up by the PCI layer). This will be used by Cell platforms using 4xx-type IOs in the Axon bridge and can be used by any embedded-type device as well. 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
This patch adds new dcr_map/dcr_read/dcr_write accessors for DCRs that can be used by drivers to transparently address either native DCRs or memory mapped DCRs. The implementation for memory mapped DCRs is done after the binding being currently worked on for SLOF and the Axon chipset. This patch enables it for the cell native platform Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 13 11月, 2006 1 次提交
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由 s.hauer@pengutronix.de 提交于
Make nvram_64.o dependent on 64bit, not on MULTIPLATFORM. Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 01 11月, 2006 1 次提交
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由 Andy Fleming 提交于
Fixed a compile error in building the 85xx support with oprofile, and in the process cleaned up some issues with the fsl_booke performance monitor code. * Reorganized FSL Book-E performance monitoring code so that the 7450 wouldn't be built if the e500 was, and cleaned it up so it was more self-contained. * Added a cpu_setup function for FSL Book-E. The original cpu_setup function prototype had no arguments, assuming that the reg_setup function would copy the required information into variables which represented the registers. This was silly for e500, since it has 1 register per counter (rather than 3 for all counters), so the code has been restructured to have cpu_setup take the current counter config array as an argument, with op_powerpc_setup() invoking op_powerpc_cpu_setup() through on_each_cpu(), and op_powerpc_cpu_setup() invoking the model-specific cpu_setup function with an argument. The argument is ignored on all other platforms at present. * Fixed a confusing line where a trinary operator only had two arguments Signed-off-by: NAndrew Fleming <afleming@freescale.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 20 9月, 2006 1 次提交
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由 Stephen Rothwell 提交于
This produces essentially the same code and will make the iSeries i/o consolidation easier. The count parameter is changed to long since that will produce the same (better) code on 32 and 64 bit builds. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
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- 12 9月, 2006 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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