- 12 5月, 2010 1 次提交
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由 Stefan Roese 提交于
ICON is based on the AppliedMicro 440SPe. It is equipped with 64MByte NOR FLASH, SODIMM, Gigabit ethernet, SM502 on PCI(X), LSI SAS1068E on PCIe0 and custom FPGA on PCIe1. Signed-off-by: NStefan Roese <sr@denx.de> Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 06 5月, 2010 9 次提交
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由 Anton Blanchard 提交于
Since the *_map cpumask variants are deprecated, change the comments to instead refer to *_mask. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Convert hotplug-cpu code to new cpumask API. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Dynamically allocate cpu_sibling_map and cpu_core_map cpumasks. We don't need to set_cpu_online() the boot cpu in smp_prepare_boot_cpu, init/main.c does it for us. We also postpone setting of the boot cpu in cpu_sibling_map and cpu_core_map until when the memory allocator is available (smp_prepare_cpus), similar to x86. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Use the new cpumask API and add some comments to clarify how get_irq_server works. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Use new cpumask functions in pseries SMP startup code. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Use new cpumask functions in iseries SMP startup code. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Change &cpu_online_map to cpu_online_mask. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Michael Neuling 提交于
Currently we always call start-cpu irrespective of if the CPU is stopped or not. Unfortunatley on POWER7, firmware seems to not like start-cpu being called when a cpu already been started. This was not the case on POWER6 and earlier. This patch checks to see if the CPU is stopped or not via an query-cpu-stopped-state call, and only calls start-cpu on CPUs which are stopped. This fixes a bug with kexec on POWER7 on PHYP where only the primary thread would make it to the second kernel. Reported-by: NAnkita Garg <ankita@linux.vnet.ibm.com> Cc: <stable@kernel.org> Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Michael Neuling 提交于
This moves query_cpu_stopped() out of the hotplug cpu code and into smp.c so it can called in other places and renames it to smp_query_cpu_stopped(). It also cleans up the return values by adding some #defines Cc: <stable@kernel.org> Signed-off-by: NMichael Neuling <mikey@neuling.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 05 5月, 2010 2 次提交
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由 Torez Smith 提交于
This is a trivial 4xx plaform that uses the new simple bsp from Josh and is handy to use in simulators such as ISS or even Mambo who don't properly implement most of the actual devices in the SoC but really only the core. Signed-off-by: NTorez Smith <lnxtorez@linux.vnet.ibm.com> Signed-off-by: NDave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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由 Dave Kleikamp 提交于
This patch adds the base support for the 476 processor. The code was primarily written by Ben Herrenschmidt and Torez Smith, but I've been maintaining it for a while. The goal is to have a single binary that will run on 44x and 47x, but we still have some details to work out. The biggest is that the L1 cache line size differs on the two platforms, but it's currently a compile-time option. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NTorez Smith <lnxtorez@linux.vnet.ibm.com> Signed-off-by: NDave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
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- 28 4月, 2010 1 次提交
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由 Benjamin Herrenschmidt 提交于
This ensures that the translations for unmapped IO mappings or unmapped memory are properly removed from the MMU hash table before such an unplug. Without this, the hypervisor refuses the unplug operations due to those resources still being mapped by the partition. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 20 4月, 2010 1 次提交
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由 Anton Vorontsov 提交于
Currently some MPC85xx and MPC86xx boards fail to build without CONFIG_PCI: arch/powerpc/platforms/fsl_uli1575.c: In function 'quirk_final_uli5249': arch/powerpc/platforms/fsl_uli1575.c:234: error: implicit declaration of function 'pci_bus_for_each_resource' arch/powerpc/platforms/fsl_uli1575.c:234: error: expected ';' before '{' token cc1: warnings being treated as errors arch/powerpc/platforms/fsl_uli1575.c:223: warning: unused variable 'dummy' make[1]: *** [arch/powerpc/platforms/fsl_uli1575.o] Error 1 This patch fixes the issue by appending 'if PCI' condition when selecting FSL_ULI1575 Kconfig symbol. Signed-off-by: NAnton Vorontsov <avorontsov@mvista.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 07 4月, 2010 4 次提交
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由 Akinobu Mita 提交于
Replace open-coded rate limiting logic with __ratelimit(). Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@ozlabs.org Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Julia Lawall 提交于
kasprintf combines kmalloc and sprintf, and takes care of the size calculation itself. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression a,flag; expression list args; statement S; @@ a = - \(kmalloc\|kzalloc\)(...,flag) + kasprintf(flag,args) <... when != a if (a == NULL || ...) S ...> - sprintf(a,args); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Acked-by: NNathan Fontenot <nfont@austin.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Julia Lawall 提交于
dlpar_free_cc_nodes frees its argument, so dlpar_online_cpu should not be called on the same value. Skip over the call to dlpar_online_cpu by jumping directly to out. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E,E2; @@ dlpar_free_cc_nodes(E) ... ( E = E2 | * E ) // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 d binderman 提交于
Fix minor nits found by cppcheck [./arch/powerpc/platforms/powermac/low_i2c.c:594]: (style) The scope of the variable chans can be reduced [./arch/powerpc/platforms/powermac/low_i2c.c:594]: (style) The scope of the variable i can be reduced [./arch/powerpc/platforms/powermac/low_i2c.c:1260]: (style) Redundant condition. It is safe to deallocate a NULL pointer Signed-off-by: NDavid Binderman <dcb314@hotmail.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 27 3月, 2010 1 次提交
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由 Roman Fietze 提交于
This patch avoids unbalanced enable/disable messages for the DMA interrupts when running the 5200 platform SCLPC/BestComm driver in DMA mode. Signed-off-by: NRoman Fietze <roman.fietze@telemotive.de> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 18 3月, 2010 1 次提交
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由 Grant Likely 提交于
mpc52xx_gpt_wdt_setup is defined as 0, which causes the following build failure with gcc 4.5, since it's built with -Werror. arch/powerpc/platforms/52xx/mpc52xx_gpt.c:761:3: error: statement with no effect Changing it to a static inline fixes the problem. Reported-by: NJeff Mahoney <jeffm@suse.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 09 3月, 2010 6 次提交
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由 Vaidyanathan Srinivasan 提交于
Remove debug printks in pseries_mach_cpu_die(). These are noisy at runtime. Traceevents can be added to instrument this section of code. The following KERN_INFO printks are removed: cpu 62 (hwid 62) returned from cede. Decrementer value = b2802fff Timebase value = 2fa8f95035f4a cpu 62 (hwid 62) got prodded to go online cpu 58 (hwid 58) ceding for offline with hint 2 Signed-off-by: NVaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Vaidyanathan Srinivasan 提交于
Rearrange condition checks for better code readability and prevention of possible race conditions when preferred_offline_state can potentially change during the execution of pseries_mach_cpu_die(). The patch will make pseries_mach_cpu_die() put cpu in one of the consistent states and not hit the run over BUG() Signed-off-by: NVaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Vaidyanathan Srinivasan 提交于
Cpu hotplug (offline) without dlpar operation will place cpu in cede state and the extended_cede_processor() function will return when resumed. Kernel stack pointer needs to be reset before start_secondary() is called to continue the online operation. Added new function start_secondary_resume() to do the above steps. Signed-off-by: NVaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Mark Nelson 提交于
Now that we properly keep track of the CPPR value (since 49bd3647, "powerpc/pseries: Track previous CPPR values to correctly EOI interrupts") we can pass it to the H_XIRR hcall. This is needed because the Partition Adjunct Option of new versions of pHyp extend the H_XIRR hcall to include the CPPR as an input parameter. Earlier versions not supporting this option just disregard the extra input parameter, so this doesn't cause any problems for existing systems. The Partition Adjunct Option is required for future systems that will support SR-IOV capable devices. Signed-off-by: NMark Nelson <markn@au1.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Adam Lackorzynski 提交于
Compiling 2.6.33 with SMP enabled and HOTPLUG_CPU disabled gives me the following link errors: LD init/built-in.o LD .tmp_vmlinux1 arch/powerpc/platforms/built-in.o: In function `.smp_xics_setup_cpu': smp.c:(.devinit.text+0x88): undefined reference to `.set_cpu_current_state' smp.c:(.devinit.text+0x94): undefined reference to `.set_default_offline_state' arch/powerpc/platforms/built-in.o: In function `.smp_pSeries_kick_cpu': smp.c:(.devinit.text+0x13c): undefined reference to `.set_preferred_offline_state' smp.c:(.devinit.text+0x148): undefined reference to `.get_cpu_current_state' smp.c:(.devinit.text+0x1a8): undefined reference to `.get_cpu_current_state' make: *** [.tmp_vmlinux1] Error 1 The following change fixes that for me and seems to work as expected. Signed-off-by: NAdam Lackorzynski <adam@os.inf.tu-dresden.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Michael Ellerman 提交于
On 64-bit kernels we currently have a 512 byte struct paca_struct for each cpu (usually just called "the paca"). Currently they are statically allocated, which means a kernel built for a large number of cpus will waste a lot of space if it's booted on a machine with few cpus. We can avoid that by only allocating the number of pacas we need at boot. However this is complicated by the fact that we need to access the paca before we know how many cpus there are in the system. The solution is to dynamically allocate enough space for NR_CPUS pacas, but then later in boot when we know how many cpus we have, we free any unused pacas. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 07 3月, 2010 1 次提交
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由 Wim Van Sebroeck 提交于
make the watchdog_info struct const where possible. Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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- 05 3月, 2010 5 次提交
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由 Scott Wood 提交于
This implements perf_event support for the Freescale embedded performance monitor, based on the existing perf_event.c that supports server/classic chips. Some limitations: - Performance monitor interrupts are regular EE interrupts, and thus you can't profile places with interrupts disabled. We may want to implement soft IRQ-disabling, with perfmon interrupts exempted and treated as NMIs. - When trying to schedule multiple event groups at once, and using restricted events, situations could arise where scheduling fails even though it would be possible. Consider three groups, each with two events. One group has restricted events, the others don't. The two non-restricted groups are scheduled, then one is removed, which happens to occupy the two counters that can't do restricted events. The remaining non-restricted group will not be moved to the non-restricted-capable counters to make room if the restricted group tries to be scheduled. Signed-off-by: NScott Wood <scottwood@freescale.com> Acked-by: NPaul Mackerras <paulus@samba.org> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Martyn Welch 提交于
This patch renames GE Fanuc boards following the split-up of the GE Fanuc joint venture. These boards are now made by GE Intelligent platorms. Signed-off-by: NMartyn Welch <martyn.welch@gefanuc.com> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Anton Vorontsov 提交于
Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, gef_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Anton Vorontsov 提交于
Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, pci_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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由 Anton Vorontsov 提交于
Interrupt controllers' hooks are executed in the atomic context, so they are not permitted to sleep (with RT kernels non-raw spinlocks are sleepable). So, socrates_fpga_pic_lock has to be a real (non-sleepable) spinlock. Signed-off-by: NAnton Vorontsov <avorontsov@ru.mvista.com> Acked-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
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- 24 2月, 2010 1 次提交
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由 Bjorn Helgaas 提交于
No functional change; this converts loops that iterate from 0 to PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the pci_bus_for_each_resource() iterator instead. This doesn't change the way resources are stored; it merely removes dependencies on the fact that they're in a table. Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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- 19 2月, 2010 6 次提交
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由 Thomas Gleixner 提交于
pmac_pic_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
feature_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
beat_htab_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
confirm_error_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
beatic_irq_mask_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
nv_lock needs to be a real spinlock in RT. Convert it to raw_spinlock. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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