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* handle kernelcore=: genericMel Gorman2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the kernelcore= parameter for x86. Once all patches are applied, a new command-line parameter exist and a new sysctl. This patch adds the necessary documentation. From: Yasunori Goto <y-goto@jp.fujitsu.com> When "kernelcore" boot option is specified, kernel can't boot up on ia64 because of an infinite loop. In addition, the parsing code can be handled in an architecture-independent manner. This patch uses common code to handle the kernelcore= parameter. It is only available to architectures that support arch-independent zone-sizing (i.e. define CONFIG_ARCH_POPULATES_NODE_MAP). Other architectures will ignore the boot parameter. [bunk@stusta.de: make cmdline_parse_kernelcore() static] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Allow huge page allocations to use GFP_HIGH_MOVABLEMel Gorman2007-07-17
| | | | | | | | | | | | | | | | | | | Huge pages are not movable so are not allocated from ZONE_MOVABLE. However, as ZONE_MOVABLE will always have pages that can be migrated or reclaimed, it can be used to satisfy hugepage allocations even when the system has been running a long time. This allows an administrator to resize the hugepage pool at runtime depending on the size of ZONE_MOVABLE. This patch adds a new sysctl called hugepages_treat_as_movable. When a non-zero value is written to it, future allocations for the huge page pool will use ZONE_MOVABLE. Despite huge pages being non-movable, we do not introduce additional external fragmentation of note as huge pages are always the largest contiguous block we care about. [akpm@linux-foundation.org: various fixes] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Create the ZONE_MOVABLE zoneMel Gorman2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following 8 patches against 2.6.20-mm2 create a zone called ZONE_MOVABLE that is only usable by allocations that specify both __GFP_HIGHMEM and __GFP_MOVABLE. This has the effect of keeping all non-movable pages within a single memory partition while allowing movable allocations to be satisfied from either partition. The patches may be applied with the list-based anti-fragmentation patches that groups pages together based on mobility. The size of the zone is determined by a kernelcore= parameter specified at boot-time. This specifies how much memory is usable by non-movable allocations and the remainder is used for ZONE_MOVABLE. Any range of pages within ZONE_MOVABLE can be released by migrating the pages or by reclaiming. When selecting a zone to take pages from for ZONE_MOVABLE, there are two things to consider. First, only memory from the highest populated zone is used for ZONE_MOVABLE. On the x86, this is probably going to be ZONE_HIGHMEM but it would be ZONE_DMA on ppc64 or possibly ZONE_DMA32 on x86_64. Second, the amount of memory usable by the kernel will be spread evenly throughout NUMA nodes where possible. If the nodes are not of equal size, the amount of memory usable by the kernel on some nodes may be greater than others. By default, the zone is not as useful for hugetlb allocations because they are pinned and non-migratable (currently at least). A sysctl is provided that allows huge pages to be allocated from that zone. This means that the huge page pool can be resized to the size of ZONE_MOVABLE during the lifetime of the system assuming that pages are not mlocked. Despite huge pages being non-movable, we do not introduce additional external fragmentation of note as huge pages are always the largest contiguous block we care about. Credit goes to Andy Whitcroft for catching a large variety of problems during review of the patches. This patch creates an additional zone, ZONE_MOVABLE. This zone is only usable by allocations which specify both __GFP_HIGHMEM and __GFP_MOVABLE. Hot-added memory continues to be placed in their existing destination as there is no mechanism to redirect them to a specific zone. [y-goto@jp.fujitsu.com: Fix section mismatch of memory hotplug related code] [akpm@linux-foundation.org: various fixes] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add __GFP_MOVABLE for callers to flag allocations from high memory that may ↵Mel Gorman2007-07-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | be migrated It is often known at allocation time whether a page may be migrated or not. This patch adds a flag called __GFP_MOVABLE and a new mask called GFP_HIGH_MOVABLE. Allocations using the __GFP_MOVABLE can be either migrated using the page migration mechanism or reclaimed by syncing with backing storage and discarding. An API function very similar to alloc_zeroed_user_highpage() is added for __GFP_MOVABLE allocations called alloc_zeroed_user_highpage_movable(). The flags used by alloc_zeroed_user_highpage() are not changed because it would change the semantics of an existing API. After this patch is applied there are no in-kernel users of alloc_zeroed_user_highpage() so it probably should be marked deprecated if this patch is merged. Note that this patch includes a minor cleanup to the use of __GFP_ZERO in shmem.c to keep all flag modifications to inode->mapping in the shmem_dir_alloc() helper function. This clean-up suggestion is courtesy of Hugh Dickens. Additional credit goes to Christoph Lameter and Linus Torvalds for shaping the concept. Credit to Hugh Dickens for catching issues with shmem swap vector and ramfs allocations. [akpm@linux-foundation.org: build fix] [hugh@veritas.com: __GFP_ZERO cleanup] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirtyMartin Schwidefsky2007-07-17
| | | | | | | | | | Nobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty. Remove the functions from all architectures. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: remove ptep_establish()Martin Schwidefsky2007-07-17
| | | | | | | | | | The last user of ptep_establish in mm/ is long gone. Remove the architecture primitive as well. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'merge' of ↵Linus Torvalds2007-07-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits) [POWERPC] Create add_rtc() function to enable the RTC CMOS driver [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration [POWERPC] Oprofile support for Power 5++ [POWERPC] Enable arbitary speed tty ioctls and split input/output speed [POWERPC] Make drivers/char/hvc_console.c:khvcd() static [POWERPC] Remove dead code for preventing pread() and pwrite() calls [POWERPC] Remove unnecessary #undef printk from prom.c [POWERPC] Fix typo in Ebony default DTS [POWERPC] Check for NULL ppc_md.init_IRQ() before calling [POWERPC] Remove extra return statement [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED [POWERPC] pasemi: Rename platform [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports [POWERPC] Add __read_mostly support for powerpc [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane [POWERPC] Create a dummy zImage if no valid platform has been selected [POWERPC] PS3: Bootwrapper support. [POWERPC] powermac i2c: Use mutex [POWERPC] Schedule removal of arch/ppc ... Fixed up conflicts manually in: Documentation/feature-removal-schedule.txt arch/powerpc/kernel/pci_32.c arch/powerpc/kernel/pci_64.c include/asm-powerpc/pci.h and asked the powerpc people to double-check the result..
| * Merge branch 'for-2.6.23' into mergePaul Mackerras2007-07-10
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| | * [POWERPC] Add H_ILLAN_ATTRIBUTES hcall numberBrian King2007-07-10
| | | | | | | | | | | | | | | | | | | | | Adds the number for the H_ILLAN_ATTRIBUTES hcall. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Enable arbitary speed tty ioctls and split input/output speedDavid Woodhouse2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding the defines/macros activates the existing code in the tty layer and allows this platform to use the arbitary speed ioctl setting layer Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Add __read_mostly support for powerpcTony Breeds2007-07-10
| | | | | | | | | | | | | | | Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Consolidate PowerPC 750 cputable featuresJosh Boyer2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | The 750 CPU_FTR macros have quite a bit of duplication in them. Consolidate them to use CPU_FTRS_750 and only list the unique features for derivatives. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Oprofile enhanced instruction sampling supportwill schmidt2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oprofile enhanced instruction sampling support. When performing instruction sampling, the mmcra[SLOT] field can be used to more accurately identify the address of the sampled instruction. Tested on power4, js20, power5 and power5+. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> cc: Maynard Johnson <maynardj@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Make the debugfs "powerpc" dir globally accessibleMichael Ellerman2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The prom.c debugging code creates a "powerpc" directory in debugfs, which is nice, but doesn't allow any other debugging code to stick things under "powerpc" in debugfs. So make it global. While we're there we should make the prom.c debugging code depend on CONFIG_DEBUG_FS, because it doesn't work otherwise. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Add a warning to help trackdown device_node refcounting bugsMichael Ellerman2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the refcount for a device node goes to 0, we call the destructor - of_node_release(). This should only happen if we've already detached the node from the device tree. So add a flag OF_DETACHED which tracks detached-ness, and if we find ourselves in of_node_release() without it set, issue a warning and don't free the device_node. To avoid warning continuously reinitialise the kref to a sane value. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Generalise device_node flag interfaceMichael Ellerman2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | The struct device_node currently has a _flags variable, although it's only used for one flag - OF_DYNAMIC. Generalise the flag accessors so we can use them with other flags in future. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] 8xx: mpc885ads pcmcia supportVitaly Bordug2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for PowerQuicc on-chip PCMCIA. The driver is implemented as of_device, so only arch/powerpc stuff is capable to use it, which now implies only mpc885ads reference board. To cope with the code that should be hooked inside driver, but is really board specific (like set_voltage), global structure mpc8xx_pcmcia_ops holds necessary function pointers that are filled in the BSP code. [akpm@linux-foundation.org: whitespace diddles] Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Move inline asm eieio to using eieio inline functionKumar Gala2007-07-10
| | | | | | | | | | | | | | | | | | | | | | | | Use the eieio function so we can redefine what eieio does rather than direct inline asm. This is part code clean up and partially because not all PPCs have eieio (book-e has mbar that maps to eieio). Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Merge asm-ppc/mmu_context.h into asm-power/mmu_context.hKumar Gala2007-07-03
| | | | | | | | | | | | | | | | | | | | | Just did a directly merge from asm-ppc into asm-powerpc. This is the last header that we directly include from asm-powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Split out asm-ppc/mmu.h portions for PowerPC 8xxDavid Gibson2007-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/powerpc still relies on asm-ppc/mmu.h for some 32-bit MMU types. This patch is another step towards fixing this. It takes the portions of asm-ppc/mmu.h related to 8xx embedded CPUs which are still relevant in arch/powerpc and puts them in a new asm-powerpc/mmu-8xx.h, included when appropriate from asm-powerpc/mmu.h. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Split out asm-ppc/mmu.h portions for Freescale Book-EDavid Gibson2007-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/powerpc still relies on asm-ppc/mmu.h for some 32-bit MMU types. This patch is another step towards fixing this. It takes the portions of asm-ppc/mmu.h related to Freescale Book-E which are still relevant in arch/powerpc and puts them in a new asm-powerpc/mmu-fsl-booke.h, included when appropriate from asm-powerpc/mmu.h. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] spufs: Add spu stats in sysfsChristoph Hellwig2007-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Export spu statistics in sysfs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] spufs: Add stat file to spufsChristoph Hellwig2007-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Export per-context statistics in spufs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] spufs: Add bit definitionSebastian Siewior2007-07-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a bit define from book, and replace one hex number with a symbol, for clarity. Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Use ppc64 style list management for pci_controller on ppc32Kumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | Use the ppc64 style list management and allocation functions for pci_controllers. This makes the pci_controller structs just a bit more common between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Move pci_bus_to_hose users to pci_bus_to_hostKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | In the places we can move to using pci_bus_to_host, this allows us to make pci_bus_to_host static and remove its export. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypesKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | Make the ppc32 pcibios_alloc_controller take a device node to match the ppc64 prototypes and have it set arch_data. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Use global_number in ppc32 pci_controllerKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Removed dead code related to PCI on ppc32Kumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no in kernel users of any off these functions and some of them were not even EXPORT_SYMBOL: - pci_bus_io_base() - pci_bus_io_base_phys() - pci_bus_mem_base_phys() - pci_resource_to_bus() - phys_to_bus() - pci_phys_to_bus() - pci_bus_to_phys() - pci_init_resource() - resource_fixup() Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Remove local_number from pci_controllerKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | We never actually read local_number so lets just remove it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Merge asm-ppc/pci-bridge.h into asm-power/pci-bridge.hKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moved bits need for ppc32 from asm-ppc/pci-bridge.h into asm-powerpc/pci-bridge.h. Removed ARCH=powerpc specific bits (and comments related to ARCH=ppc) from asm-ppc/pci-bridge.h as its only used on ARCH=ppc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] 86xx: Workaround PCI_PRIMARY_BUS usageKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Freescale PCI-e controllers have an issue in that they use the PCI_PRIMARY_BUS register in the virtual P2P bridge to determine which bus number to match on when generating a type 0 config cycle. The issue is if we are renumbering bus numbers to match Linux we will try setting the PCI_PRIMARY_BUS and will not know which bus number to use for generating type 0 config cycles. We surpress writing the register in the P2P bridge and always keep it at zero. In the future when proper PCI domain support is working we should be able to remove this. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Added indirect_type to handle variants of PCI opsKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic PCI config ops indirect support for ppc32 covers only two cases (implicit vs explicit) type 0/1 config cycles via set_cfg_type. Added a indirect_type bit mask to handle other variants. Added support for PCI-e extended registers and moved the cfg_type handling into the bit mask for ARCH=powerpc. We can also use this to handle indirect quirks. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Removed remnants of bus_offsetKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removed the remants of bus_offset and use self_busno in the mv64x60 case and use pci_assign_all_buses on 83xx/85xx. 83xx/85xx have multiple PHBs and the firmwares on these devices tend not to handle topologies with P2P bridges well so we let Linux just reassign the bus numbers to match. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Added self_busno to indicate which bus number the PHB isKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | Added self_busno to pci_controller and indirect PCI ops to be set by board code to indicate which bus number to use when talking to the PHB. By default we use zero since the majority of controllers that have implicit mechanisms to talk to the PHBs use a bus number of zero. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] Pass the pci_controller into pci_exclude_deviceKumar Gala2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are times that we need to know which controller we are on to decide how to exclude devices properly. We now pass the pci_controller that we are going to use down to the pci_exclude_device function. This will greatly simplify being able to exclude the PHBs in multiple controller setups. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * [POWERPC] kill isa_{io,mem}_base definitions for !PCIArnd Bergmann2007-06-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CONFIG_PCI is disabled, the definitions for isa_io_base, isa_mem_base and pci_dram_offset are entirely unused, but they can result in link failure because they are defined in multiple places. The easiest fix is to just remove all these definitions. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * [POWERPC] Abolish unused ucBoardRev variablesDavid Gibson2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | asm-powerpc/processor.h declares, and arch/ppc/platforms/prep_setup.c defines variables ucBoardRev, ucBoardRevMaj and ucBoardRevMin which are used nowhere in the current kernel (neither in arch/ppc nor arch/powerpc). This removes them. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Move iSeries_tb_recal into its own late_initcall.Tony Breeds2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently iSeries will recalibrate the cputime_factors in the first settimeofday() call. It seems the reason for doing this is to ensure a resaonable time delta after time_init(). On current kernels (with udev), this call is made 40-60 seconds into the boot process, by moving it to a late initcall it is called approximately 5 seconds after time_init() is called. This is sufficient to recalibrate the timebase. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> CC: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Storage Driver CoreGeert Uytterhoeven2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add storage driver core support for the PS3. PS3 storage devices are a special kind of PS3 system bus device. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Preallocate bootmem memory for the PS3 FLASH ROM storage driverGeert Uytterhoeven2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Preallocate 256 KiB of bootmem memory for the PS3 FLASH ROM storage driver. This can be disabled by passing `ps3flash=off' on the kernel command line. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Frame buffer system-bus reworkGeert Uytterhoeven2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the ps3fb device from a platform device to a PS3 system bus device. Fix the remove and shutdown methods to support kexec and to make ps3fb a loadable module. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Rework AV settings driverGeoff Levand2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the PS3 ps3av driver a loadable module. - Replace static data with kmalloc()'ed. o Allocate struct ps3av dynamically, as it contains data used as vuart receive/transmit buffers o Move static recv_buf from ps3av_do_pkt() to struct ps3av - Move ps3av_vuart_{read,write}() from drivers/ps3/ps3av_cmd.c to drivers/ps3/ps3av.c and make them static as they're used in that file only. - Make device a PS3 system-bus device. - Update copyright formatting. - Make two new routines ps3av_register_flip_ctl() and ps3av_flip_ctl() to support late binding of the frame buffer flip control routine. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: System manager re-workGeoff Levand2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PS3 sys-manager updates to reflect the new PS3 unifed device support. Fixups to the PS3 sys-manager driver to properly support sys_reboot(). - Add varable request_tag to struct ps3_sys_manager_header. - Move ctrl_alt_del from PS3_SM_EVENT_POWER_RELEASED to PS3_SM_EVENT_POWER_PRESSED. - Make the PS3 sys-manager driver a loadable module. - Add new file sys-manager-core.c. - Add new struct ps3_sys_manager_ops for dynamic binding. - Put data sent to device on stack. - Add support for PS3_SM_SERVICE_ID_REQUEST_ERROR. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Vuart reworkGeoff Levand2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PS3 vuart updates to reflect the new PS3 unified device support. - Move vuart devices to the PS3 system bus. - Replace use of ps3_vuart_port_device with ps3_system_bus_device. - Make the PS3 vuart bus driver a loadable module. - Add remove() and shutdown() routines. - Move ps3_vuart_work into ps3_vuart_port_priv.tx_list. - Remove redundant spinlock ps3_vuart_work.lock. - No longer free ps3_vuart_port_device.priv on shutdown. - Cleanup Kconfig defs. - Export symbols needed for modular port drivers. - Arrange to use port numbers found in repository. - Fix bugs in ps3_vuart_read_async() and polled reading - Cleanup handling of shared interrupt with ps3_vuart_bus_interrupt_get() and ps3_vuart_bus_interrupt_put() - Add more comments to vuart.c. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: System-bus reworkGeoff Levand2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework the PS3 system bus to unify device support. - DMA region sizes must be a power of two - storage bus DMA updates: - Small fixes for the PS3 DMA core: o fix alignment bug o kill superfluous test o indentation o spelling o export ps3_dma_region_{create,free}() - ps3_dma_region_init(): o Add `addr' and `len' parameters, so you can create a DMA region that does not cover all memory (use `NULL' and `0' to cover all memory). This is needed because there are not sufficient IOMMU resources to have all DMA regions cover all memory. o Uninline - Added remove and shutdown routines to all drivers. - Added loadable module support to all drivers. - Added HV calls for iopte management (needed by sound driver). Signed-off-by: MOKUNO Masakazu <mokuno@sm.sony.co.jp> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Add support for HDMI RGB Full Range modeMasashi Kimoto2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for HDMI RGB Full Range mode, which is available on system software 1.80 or newer. CC: Masashi Kimoto <Masashi_Kimoto@hq.scei.sony.co.jp> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] PS3: Compare firmware versionMasakazu Mokuno2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a utility routine ps3_compare_firmware_version() to compare system firmware versions. Uses the existing ps3_get_firmware_version() routine. Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Fix Kexec/Kdump for power6Sachin P. Sant2007-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Power machines supporting VRMA, Kexec/Kdump does not work. VRMA (virtual real-mode area) means that accesses with IR/DR = 0 (i.e. the MMU "off") actually still go through the hash table, using entries put there by the hypervisor. This means that when we clear out the hash table on kexec, we need to make sure these entries are left untouched. This also adds plpar_pte_read_raw() on the lines of plpar_pte_remove_raw(). Signed-off-by : Sachin Sant <sachinp@in.ibm.com> Signed-off-by : Mohan Kumar M <mohan@in.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Fix stolen time for SMT without LPARMichael Neuling2007-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For POWERPC, stolen time accounts for cycles lost to the hypervisor or PURR cycles attributed to the other SMT thread. Hence, when a PURR is available, we should still calculate stolen time, irrespective of being virtualised. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 18:09:30 -0500