- 21 10月, 2008 13 次提交
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由 Jon Tollefson 提交于
Adjust amount to reserve based on previous nodes for reserves spanning multiple nodes. Check if the node active range is empty before attempting to pass the reserve to bootmem. In practice the range shouldn't be empty, but to be sure we check. Signed-off-by: NJon Tollefson <kniht@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Carl Love 提交于
The issue is the SPU code is not holding the kernel mutex lock while adding samples to the kernel buffer. This patch creates per SPU buffers to hold the data. Data is added to the buffers from in interrupt context. The data is periodically pushed to the kernel buffer via a new Oprofile function oprofile_put_buff(). The oprofile_put_buff() function is called via a work queue enabling the funtion to acquire the mutex lock. The existing user controls for adjusting the per CPU buffer size is used to control the size of the per SPU buffers. Similarly, overflows of the SPU buffers are reported by incrementing the per CPU buffer stats. This eliminates the need to have architecture specific controls for the per SPU buffers which is not acceptable to the OProfile user tool maintainer. The export of the oprofile add_event_entry() is removed as it is no longer needed given this patch. Note, this patch has not addressed the issue of indexing arrays by the spu number. This still needs to be fixed as the spu numbering is not guarenteed to be 0 to max_num_spus-1. Signed-off-by: NCarl Love <carll@us.ibm.com> Signed-off-by: NMaynard Johnson <maynardj@us.ibm.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NAcked-by: Robert Richter <robert.richter@amd.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 roel kluin 提交于
"unsigned int" speed cannot be negative, it's thus pointless to test if it is. Signed-off-by: NRoel Kluin <roel.kluin@gmail.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Nathan Fontenot 提交于
The pfn of the memory to be removed should be validated prior to attempting to remove the memory. In cases where the probe of a memory section fails during hotplug add, the pfn for the lmb may not be valid. Signed-off-by: NBadari Pulavarty <pbadari@us.ibm.com> Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Sebastian Siewior 提交于
If the vmlinux binary in memory is larger than 4 MiB than it collides with the initial boot code which is linked at 4 MiB in case of cuBoot. If the the uncompressed image size (on disk size) is less than 4 MiB then it would fit. The difference between those two sizes is the bss section. In cuBoot we have the dtb embedded right after the data section so it is very likely that the reset of the bss section (in kernel's start up code) will overwrite the dtb blob. Therefore we reallocate the dtb. Something similar is allready done to the initrd. Signed-off-by: NSebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Andre Detsch 提交于
This patch adds a comment to clarify why atomic_dec_if_positive is being used to decrement gang's aff_sched_count on SPU context unbind. Signed-off-by: NAndre Detsch <adetsch@br.ibm.com> Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Andre Detsch 提交于
This patch improves redability of the code responsible for trying to find a node with enough SPUs not committed to other affinity gangs. An additional check is also added, to avoid taking into account gangs that have no SPU affinity. Signed-off-by: NAndre Detsch <adetsch@br.ibm.com> Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
No need to zero the entire buffer, just the head and tail indices. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
With most file readers (eg cat, dd), reading a context's regs file will result in two reads: the first to read the data, and the second to return EOF. Because each read performs a spu_acquire_saved, we end up descheduling and re-scheduling the context twice. This change does a simple check to see if we'd return EOF before calling spu_acquire_saved(), saving the extra schedule operation. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
Currently, read() on the sputrace log will block until the read buffer is full. This makes it difficult to retrieve the end of the buffer, as the user will need to read with the right-sized buffer. In a similar method as 91553a1b5e0df006a3573a88d98ee7cd48a3818a, this change makes the switch_log return if there has already been data read. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
Currently, we use ctx->mapping_lock and ctx->switch_log->lock for the context switch log. The mapping lock only prevents concurrent open()s, so we require the switch_lock->lock for reads. Since writes to the switch log buffer occur on context switches, we're better off synchronising with the state_mutex, which is held during a switch. Since we're serialised througout the buffer reads and writes, we can use the state mutex to protect open and release too, and can now kfree() the log buffer on release. This allows us to perform the switch log notify without taking any extra locks. Because the buffer is only present while the file is open, we can use it to prevent multiple simultaneous openers. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
Currently, read() on the sputrace buffer will only return data when the user buffer is exhausted. This may mean that we never see the end of the event log, unless we read() with exactly the right-sized buffer. This change makes sputrace_read not block if we have data ready to return. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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由 Jeremy Kerr 提交于
Currently, sputrace will start logging to the event buffer before the log buffer has been open()ed. This results in a heap of "lost samples" warnings if the sputrace file hasn't yet been opened. Since the buffer is reset on open() anyway, there's no need to enable logging when no-one has opened the log. Because open clears the log, make it return EBUSY for mutliple open calls. Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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- 18 10月, 2008 2 次提交
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由 Steven A. Falco 提交于
This patch adds support for the GPIO functions of PPC40x and PPC44x SOCs. Signed-off-by: NSteve Falco <sfalco@harris.com> Acked-by: NStefan Roese <sr@denx.de> Acked-by: NSean MacLennan <smaclennan@pikatech.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Niklaus Giger 提交于
Adds support for a HCU4 PPC405GPr based board from Netstal Maschinen AG. Signed-off-by: NNiklaus Giger <niklaus.giger@member.fsf.org> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 17 10月, 2008 5 次提交
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由 Josh Boyer 提交于
Add simple defconfig for the AMCC PowerPC 405EZ Acadia evaluation board Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Josh Boyer 提交于
This adds a cuboot wrapper for the AMCC PowerPC 405EZ Acadia board. The clocking code is derived from U-Boot, originally written by Stefan Roese. Signed-off-by: NJosh Boyer <jwboyer@linux.ibm.com>
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由 Josh Boyer 提交于
This adds a common board file for almost all of the "simple" PowerPC 40x boards that exist today. This is intended to be a single place to add support for boards that do not differ in platform support from most of the evaluation boards that are used as reference platforms. Boards that have specific requirements or custom hardware setup should still have their own board.c file. The first board ported to this is the AMCC PowerPC 405EZ Acadia board. Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Josh Boyer 提交于
This adds the AMCC PowerPC 405EZ chip to the cputable Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Josh Boyer 提交于
Add the base DTS for the AMCC PowerPC 405EZ Acadia evalution board. In addition to some of the normal PPC 40x peripherals, the Acadia board has: - 64 MiB PSRAM - NOR and NAND flash - Two USB 1.1 host ports - Two CAN 2.0 ports - ADC and DAC connectors - LCD display This adds the basic platform support to build from. Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 16 10月, 2008 2 次提交
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由 Wolfram Sang 提交于
MPC5200 needs to have pipelining disabled for ATA to work. MPC5200B does not. So, for the latter, don't touch the original setting from the bootloader. Signed-off-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Current device trees do not have the device_type = soc property set anymore. Fix up the cuImage bootwrapper fragment to still find the IMMR nodes. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 15 10月, 2008 18 次提交
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由 Shinya Kuribayashi 提交于
Signed-off-by: NShinya Kuribayashi <skuribay@ruby.dti.ne.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Thomas Bogendoerfer 提交于
Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Thomas Bogendoerfer 提交于
This patchset removes some dead code and creates a platform device for the RTC class driver. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Thomas Bogendoerfer 提交于
This patchset removes some dead code and creates a platform device for the RTC class driver. Signed-off-by: NThomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
The patch below changes register_pci_controller() such that controllers being added after pcibios_init() has run are be scanned immediately. This is needed for example by the BCM47xx PCI controller, which is located on the SSB bus, which is now initialized after the PCI subsystem. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
This patch adds support for the reset button of WGT634U machine, using GPIO interrupts. Based on a patch from Michel Lespinasse. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
This patch simplifies the BCM47xx GPIO code by using the new SSB GPIO API, which does a lot things that were implemented directly in the BCM47xx code. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
This patch removes the remaining reference to the BCM947xx development board codename. Signed-off-by: NFlorian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Aurelien Jarno 提交于
This adds a printk message when a WGT634U machine is detected. Signed-off-by: NAurelien Jarno <aurelien@aurel32.net> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> Signed-off-by: NTomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Johannes Dickgreber 提交于
It should print the type of the Nth processor. Signed-off-by: NJohannes Dickgreber <tanzy@gmx.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Johannes Dickgreber 提交于
Signed-off-by: NJohannes Dickgreber <tanzy@gmx.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
... and move it to where all its brothers and sisters reside. Requested by Shane McDonald <mcdonald.shane@gmail.com>. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Bjorn Helgaas 提交于
Most if not all x86 platforms have an RTC device, but sometimes the RTC is not exposed as a PNP0b00/PNP0b01/PNP0b02 device in PNPBIOS or ACPI: http://bugzilla.kernel.org/show_bug.cgi?id=11580 https://bugzilla.redhat.com/show_bug.cgi?id=451188 It's best if we can discover the RTC via PNP because then we know which flavor of device it is, where it lives, and which IRQ it uses. But if we can't, we should register a platform device using the compiled-in RTC_PORT/RTC_IRQ resource assumptions. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net> Reported-by: NRik Theys <rik.theys@esat.kuleuven.be> Reported-by: shr_msn@yahoo.com.tw Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Benjamin Herrenschmidt 提交于
Recently, indirect_pci was changed to test if the bus number requested is the one hanging straight off the PHB, then it substitutes the bus number with another one contained in a new "self_busno" field of the pci_controller structure. However, this breaks CHRP which didn't initialize this new field, and which relies on having the right bus number passed to the hardware. This fixes it by initializing this variable properly for all CHRP bridges Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
The detection of the IBM "Python" PCI host bridge on IBM CHRP machines such as old RS6000 was broken when we changed of_device_is_compatible() from strncasecmp to strcasecmp (dropped the "n" variant) due to the way IBM encodes the chip version. We fix that by instead doing a match on the model property like we do for others bridges in that file. It should be good enough for those machines. If yours is still broken, let me know. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
prom_init was changed to take a new argument, the address where the kernel is loaded, which is now used to copy the SMP spin loop down before use. However, only head_64.S was adapted to pass this new value, not head_32.S, thus breaking SMP boot on 32-bit SMP CHRP machines. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
The new merged DMA code will try to access isa_bridge_pcidev when trying to DMA to/from legacy devices. This is however only defined on 64-bit. Fixes this for now by adding the variable, even if it stays NULL. In the long run, we'll make isa-bridge.c common to 32 and 64-bit. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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