- 30 10月, 2013 2 次提交
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由 Anton Blanchard 提交于
The condition register (CR) is a 32 bit quantity so we should use 32 bit loads and stores. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Stephen Rothwell 提交于
Caused by commit a4da0d50 ("powerpc: Implement arch_get_random_long/int() for powernv") from the powerpc tree interacting with commit b5b4bb3f ("of: only include prom.h on sparc") from the dt-rh tree. I added this merge fix patch (which will need to be sent to Linus when these two trees get merged, or could be applied now to the powerpc tree): [ Also add linux/smp.h to get cpu_to_chip_id -- BenH ] Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Acked-by: NRob Herring <rob.herring@calxeda.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 11 10月, 2013 20 次提交
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由 Alexey Kardashevskiy 提交于
The existing TCE machine calls (tce_build and tce_free) only support virtual mode as they call __raw_writeq for TCE invalidation what fails in real mode. This introduces tce_build_rm and tce_free_rm real mode versions which do mostly the same but use "Store Doubleword Caching Inhibited Indexed" instruction for TCE invalidation. This new feature is going to be utilized by real mode support of VFIO. Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The patch adds function ioda_eeh_phb3_phb_diag() to dump PHB3 PHB diag-data. That's called while detecting informative errors or frozen PE on the specific PHB. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
Each PHB instance (struct pnv_phb) has its corresponding log blob, which is used to hold the retrieved error log from firmware. The current size of that (4096) isn't enough for PHB3 case and the patch makes that double to 8192. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The patch prints the error number while failing to retrieve error log from firmware. It's helpful for debugging. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
For now, we only support outbound error injection. Actually, the hardware supports injecting inbound errors as well. The patch enables to inject inbound errors. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The EEH isn't enabled for PHB3 and the patch intends to enable it. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
OPAL v3 provides interfaces to access the chips XSCOM, expose this via the existing scom infrastructure. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Michael Ellerman 提交于
Add the plumbing to implement arch_get_random_long/int(). It didn't seem worth adding an extra ppc_md hook for int, so we reuse the one for long. Add an implementation for powernv based on the hwrng found in power7+ systems. We whiten the output of the hwrng, and the result passes all the dieharder tests. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
pnv_pci_setup_bml_iommu was missing a byteswap of a device tree property. 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
Sparse caught an issue where opal_set_rtc_time was incorrectly byteswapping. Also fix a number of sparse warnings. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
The powernv exception handlers are not ready to take exceptions in little endian mode, so disable them. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Alistair Popple 提交于
Signed-off-by: NAlistair Popple <alistair@popple.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Alistair Popple 提交于
Signed-off-by: NAlistair Popple <alistair@popple.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Alistair Popple 提交于
Signed-off-by: NAlistair Popple <alistair@popple.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Alistair Popple 提交于
Signed-off-by: NAlistair Popple <alistair@popple.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 27 8月, 2013 1 次提交
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由 Benjamin Herrenschmidt 提交于
With OPAL v3 we can return secondary CPUs to firmware on kexec. This allows firmware to do various cleanups making things generally more reliable, and will enable the "new" kernel to call OPAL to perform some reconfiguration tasks early on that can only be done while all the CPUs are in firmware. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 14 8月, 2013 11 次提交
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由 Mike Qiu 提交于
changes for V4: - changes the type of frozen_pe_no from %d to %llu in pr_devel() 'pe_no' hasn't been defined, it should be an typo error, it should be 'frozen_pe_no'. Also '__func__' has missed in IODA_EEH_DBG(), For safety reasons, use pr_devel() directly, instead of use IODA_EEH_DBG() Signed-off-by: NMike Qiu <qiudayu@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Legacy UARTs can exist on PowerNV, memory-mapped ones on PCI or IO based ones on the LPC bus. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Some machines might provide the console via a different mechanism such as direct access to a UART from Linux, in which case OPAL might not expose any console. In that case, the code would cause a NULL dereference. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
This uses the hooks provided by CONFIG_PPC_INDIRECT_PIO to implement a set of hooks for IO port access to use the LPC bus via OPAL calls for the first 64K of IO space Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
PHB3 doesn't support IO ports and we needn't IO segment map for that. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The index of one specific PCI controller (struct pci_controller:: global_number) can tell that it's primary one or not. So we needn't additional variable for that and just remove it. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The patch enables fetching bus range from device-tree for the specific PHB. If we can't get that from device-tree, the default range [0 255] will be used. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
We don't free PHB instance (struct pnv_phb) on error to creating the associated PCI controler (struct pci_controller). The patch fixes that. Also, the output messages have been cleaned for a bit so that they looks unified for IODA_1/2 cases. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Andy Fleming 提交于
T4, Cell, powernv, and pseries had the same implementation, so switch them to use a generic version. A2 apparently had a version, but removed it at some point, so we remove the declaration, too. Signed-off-by: NAndy Fleming <afleming@freescale.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
Address some of the trivial sparse warnings in arch/powerpc. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 24 7月, 2013 4 次提交
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由 Bjorn Helgaas 提交于
Mark pnv_pci_init_ioda2_phb() as __init. It is called only from an init function (pnv_pci_init()), and it calls an init function (pnv_pci_init_ioda_phb()): pnv_pci_init # init pnv_pci_init_ioda2_phb # non-init pnv_pci_init_ioda_phb # init This should fix a section mismatch warning. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
The patch introduces flag EEH_DEV_SYSFS to keep track that the sysfs entries for the corresponding EEH device (then PCI device) has been added or removed, in order to avoid race condition. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
While restoring BARs for one specific PCI device, the pci_dev instance should have been released. So it's not reliable to use the pci_dev instance on restoring BARs. However, we still need some information (e.g. PCIe capability position, header type) from the pci_dev instance. So we have to store those information to EEH device in advance. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Gavin Shan 提交于
When EEH error happens to one specific PE, some devices with drivers supporting EEH won't except hotplug on the device. However, there might have other deivces without driver, or with driver without EEH support. For the case, we need do partial hotplug in order to make sure that the PE becomes absolutely quite during reset. Otherise, the PE reset might fail and leads to failure of error recovery. The current code doesn't handle that 'mixed' case properly, it either uses the error callbacks to the drivers, or tries hotplug, but doesn't handle a PE (EEH domain) composed of a combination of the two. The patch intends to support so-called "partial" hotplug for EEH: Before we do reset, we stop and remove those PCI devices without EEH sensitive driver. The corresponding EEH devices are not detached from its PE, but with special flag. After the reset is done, those EEH devices with the special flag will be scanned one by one. Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 01 7月, 2013 2 次提交
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由 Benjamin Herrenschmidt 提交于
So because those things always end up in trainwrecks... In 7846de40 we moved back the iommu initialization earlier, essentially undoing 37f02195 which was causing us endless trouble... except that in the meantime we had merged 959c9bdd (to workaround the original breakage) which is now ... broken :-) This fixes it by doing a partial revert of the latter (we keep the ppc_md. path which will be needed in the hotplug case, which happens also during some EEH error recovery situations). Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org> [v3.10]
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由 Paul Gortmaker 提交于
The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. This removes all the powerpc uses of the __cpuinit macros. There are no __CPUINIT users in assembly files in powerpc. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Josh Boyer <jwboyer@gmail.com> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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