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2023-05-31x86/platform/uv: Update UV[23] platform code for SNCSteve Wahl
Previous Sub-NUMA Clustering changes need not just a count of blades present, but a count that includes any missing ids for blades not present; in other words, the range from lowest to highest blade id. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-9-steve.wahl%40hpe.com
2023-05-31x86/platform/uv: Remove remaining BUG_ON() and BUG() callsSteve Wahl
Replace BUG and BUG_ON with WARN_ON_ONCE and carry on as best as we can. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-8-steve.wahl%40hpe.com
2023-05-31x86/platform/uv: UV support for sub-NUMA clusteringSteve Wahl
Sub-NUMA clustering (SNC) invalidates previous assumptions of a 1:1 relationship between blades, sockets, and nodes. Fix these assumptions and build tables correctly when SNC is enabled. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-7-steve.wahl%40hpe.com
2023-05-31x86/platform/uv: Helper functions for allocating and freeing conversion tablesSteve Wahl
Add alloc_conv_table() and FREE_1_TO_1_TABLE() to reduce duplicated code among the conversion tables we use. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-6-steve.wahl%40hpe.com
2023-05-31x86/platform/uv: When searching for minimums, start at INT_MAX not 99999Steve Wahl
Using a starting value of INT_MAX rather than 999999 or 99999 means this algorithm won't fail should the numbers being compared ever exceed this value. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-5-steve.wahl%40hpe.com
2023-05-31x86/platform/uv: Fix printed information in calc_mmioh_mapSteve Wahl
Fix incorrect mask names and values in calc_mmioh_map() that caused it to print wrong NASID information. And an unused blade position is not an error condition, but will yield an invalid NASID value, so change the invalid NASID message from an error to a debug message. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/20230519190752.3297140-4-steve.wahl%40hpe.com
2022-04-07x86/platform/uv: Log gap hole end sizeMike Travis
Show value of gap end in the kernel log which equates to number of physical address bits used by system. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220406195149.228164-4-steve.wahl@hpe.com
2022-04-07x86/platform/uv: Update TSC sync state for UV5Mike Travis
The UV5 platform synchronizes the TSCs among all chassis, and will not proceed to OS boot without achieving synchronization. Previous UV platforms provided a register indicating successful synchronization. This is no longer available on UV5. On this platform TSC_ADJUST should not be reset by the kernel. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220406195149.228164-3-steve.wahl@hpe.com
2021-04-16x86/platform/uv: Use x2apic enabled bit as set by BIOS to indicate APIC modeMike Travis
BIOS now sets the x2apic enabled bit (and the ACPI table) for extended APIC modes. Use that bit to indicate if extended mode is set. [ bp: Fixup subject prefix, merge subsequent fix https://lkml.kernel.org/r/20210415220626.223955-1-mike.travis@hpe.com ] Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210408160047.1703-1-mike.travis@hpe.com
2021-03-08x86/platform/uv: Set section block size for hubless architecturesMike Travis
Commit bbbd2b51a2aa ("x86/platform/UV: Use new set memory block size function") added a call to set the block size value that is needed by the kernel to set the boundaries in the section list. This was done for UV Hubbed systems but missed in the UV Hubless setup. Fix that mistake by adding that same set call for hubless systems, which support the same NVRAMs and Intel BIOS, thus the same problem occurs. [ bp: Massage commit message. ] Fixes: bbbd2b51a2aa ("x86/platform/UV: Use new set memory block size function") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Russ Anderson <rja@hpe.com> Link: https://lkml.kernel.org/r/20210305162853.299892-1-mike.travis@hpe.com
2020-12-14Merge tag 'x86-apic-2020-12-14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 apic updates from Thomas Gleixner: "Yet another large set of x86 interrupt management updates: - Simplification and distangling of the MSI related functionality - Let IO/APIC construct the RTE entries from an MSI message instead of having IO/APIC specific code in the interrupt remapping drivers - Make the retrieval of the parent interrupt domain (vector or remap unit) less hardcoded and use the relevant irqdomain callbacks for selection. - Allow the handling of more than 255 CPUs without a virtualized IOMMU when the hypervisor supports it. This has made been possible by the above modifications and also simplifies the existing workaround in the HyperV specific virtual IOMMU. - Cleanup of the historical timer_works() irq flags related inconsistencies" * tag 'x86-apic-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits) x86/ioapic: Cleanup the timer_works() irqflags mess iommu/hyper-v: Remove I/O-APIC ID check from hyperv_irq_remapping_select() iommu/amd: Fix IOMMU interrupt generation in X2APIC mode iommu/amd: Don't register interrupt remapping irqdomain when IR is disabled iommu/amd: Fix union of bitfields in intcapxt support x86/ioapic: Correct the PCI/ISA trigger type selection x86/ioapic: Use I/O-APIC ID for finding irqdomain, not index x86/hyperv: Enable 15-bit APIC ID if the hypervisor supports it x86/kvm: Enable 15-bit extension when KVM_FEATURE_MSI_EXT_DEST_ID detected iommu/hyper-v: Disable IRQ pseudo-remapping if 15 bit APIC IDs are available x86/apic: Support 15 bits of APIC ID in MSI where available x86/ioapic: Handle Extended Destination ID field in RTE iommu/vt-d: Simplify intel_irq_remapping_select() x86: Kill all traces of irq_remapping_get_irq_domain() x86/ioapic: Use irq_find_matching_fwspec() to find remapping irqdomain x86/hpet: Use irq_find_matching_fwspec() to find remapping irqdomain iommu/hyper-v: Implement select() method on remapping irqdomain iommu/vt-d: Implement select() method on remapping irqdomain iommu/amd: Implement select() method on remapping irqdomain x86/apic: Add select() method on vector irqdomain ...
2020-12-14Merge tag 'x86_platform_for_v5.11' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform updates from Borislav Petkov: - add a new uv_sysfs driver and expose read-only information from UV BIOS (Justin Ernst and Mike Travis) - the usual set of small fixes * tag 'x86_platform_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/uv: Update sysfs documentation x86/platform/uv: Add deprecated messages to /proc info leaves x86/platform/uv: Add sysfs hubless leaves x86/platform/uv: Add sysfs leaves to replace those in procfs x86/platform/uv: Add kernel interfaces for obtaining system info x86/platform/uv: Make uv_pcibus_kset and uv_hubs_kset static x86/platform/uv: Fix an error code in uv_hubs_init() x86/platform/uv: Update MAINTAINERS for uv_sysfs driver x86/platform/uv: Update ABI documentation of /sys/firmware/sgi_uv/ x86/platform/uv: Add new uv_sysfs platform driver x86/platform/uv: Add and export uv_bios_* functions x86/platform/uv: Remove existing /sys/firmware/sgi_uv/ interface
2020-12-07x86/platform/uv: Add deprecated messages to /proc info leavesMike Travis
Add "deprecated" message to any access to old /proc/sgi_uv/* leaves. [ bp: Do not have a trailing function opening brace and the arguments continuing on the next line and align them on the opening brace. ] Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lkml.kernel.org/r/20201128034227.120869-5-mike.travis@hpe.com
2020-12-07x86/platform/uv: Add kernel interfaces for obtaining system infoMike Travis
Add kernel interfaces used to obtain info for the uv_sysfs driver to display. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lkml.kernel.org/r/20201128034227.120869-2-mike.travis@hpe.com
2020-12-03x86/platform/uv: Fix UV4 hub revision adjustmentMike Travis
Currently, UV4 is incorrectly identified as UV4A and UV4A as UV5. Hub chip starts with revision 1, fix it. [ bp: Massage commit message. ] Fixes: 647128f1536e ("x86/platform/uv: Update UV MMRs for UV5") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Acked-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Link: https://lkml.kernel.org/r/20201203152252.371199-1-mike.travis@hpe.com
2020-11-13x86/platform/uv: Fix copied UV5 output archtypeMike Travis
A test shows that the output contains a space: # cat /proc/sgi_uv/archtype NSGI4 U/UVX Remove that embedded space by copying the "trimmed" buffer instead of the untrimmed input character list. Use sizeof to remove size dependency on copy out length. Increase output buffer size by one character just in case BIOS sends an 8 character string for archtype. Fixes: 1e61f5a95f19 ("Add and decode Arch Type in UVsystab") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lore.kernel.org/r/20201111010418.82133-1-mike.travis@hpe.com
2020-11-07x86/platform/uv: Recognize UV5 hubless system identifierMike Travis
Testing shows a problem in that UV5 hubless systems were not being recognized. Add them to the list of OEM IDs checked. Fixes: 6c7794423a998 ("Add UV5 direct references") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201105222741.157029-4-mike.travis@hpe.com
2020-11-07x86/platform/uv: Remove spaces from OEM IDsMike Travis
Testing shows that trailing spaces caused problems with the OEM_ID and the OEM_TABLE_ID. One being that the OEM_ID would not string compare correctly. Another the OEM_ID and OEM_TABLE_ID would be concatenated in the printout. Remove any trailing spaces. Fixes: 1e61f5a95f191 ("Add and decode Arch Type in UVsystab") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201105222741.157029-3-mike.travis@hpe.com
2020-11-07x86/platform/uv: Fix missing OEM_TABLE_IDMike Travis
Testing shows a problem in that the OEM_TABLE_ID was missing for hubless systems. This is used to determine the APIC type (legacy or extended). Add the OEM_TABLE_ID to the early hubless processing. Fixes: 1e61f5a95f191 ("Add and decode Arch Type in UVsystab") Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201105222741.157029-2-mike.travis@hpe.com
2020-10-28x86/apic: Cleanup destination modeThomas Gleixner
apic::irq_dest_mode is actually a boolean, but defined as u32 and named in a way which does not explain what it means. Make it a boolean and rename it to 'dest_mode_logical' Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201024213535.443185-9-dwmw2@infradead.org
2020-10-28x86/apic: Get rid of apic:: Dest_logicalThomas Gleixner
struct apic has two members which store information about the destination mode: dest_logical and irq_dest_mode. dest_logical contains a mask which was historically used to set the destination mode in IPI messages. Over time the usage was reduced and the logical/physical functions were seperated. There are only a few places which still use 'dest_logical' but they can use 'irq_dest_mode' instead. irq_dest_mode is actually a boolean where 0 means physical destination mode and 1 means logical destination mode. Of course the name does not reflect the functionality. This will be cleaned up in a subsequent change. Remove apic::dest_logical and fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201024213535.443185-8-dwmw2@infradead.org
2020-10-28x86/apic: Cleanup delivery mode definesThomas Gleixner
The enum ioapic_irq_destination_types and the enumerated constants starting with 'dest_' are gross misnomers because they describe the delivery mode. Rename then enum and the constants so they actually make sense. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201024213535.443185-6-dwmw2@infradead.org
2020-10-28x86/apic/uv: Fix inconsistent destination modeThomas Gleixner
The UV x2apic is strictly using physical destination mode, but apic::dest_logical is initialized with APIC_DEST_LOGICAL. This does not matter much because UV does not use any of the generic functions which use apic::dest_logical, but is still inconsistent. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201024213535.443185-4-dwmw2@infradead.org
2020-10-07x86/platform/uv: Update Copyrights to conform to HPE standardsMike Travis
Add Copyrights to those files that have been updated for UV5 changes. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20201005203929.148656-14-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update UV5 TSC checkingMike Travis
Update check of BIOS TSC sync status to include both possible "invalid" states provided by newer UV5 BIOS. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-12-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update node present countingMike Travis
The changes in the UV5 arch shrunk the NODE PRESENT table to just 2x64 entries (128 total) so are in to 64 bit MMRs instead of a depth of 64 bits in an array. Adjust references when counting up the nodes present. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-11-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update UV5 MMR references in UV GRUMike Travis
Make modifications to the GRU mappings to accommodate changes for UV5. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-10-mike.travis@hpe.com
2020-10-07x86/platform/uv: Adjust GAM MMR references affected by UV5 updatesMike Travis
Make modifications to the GAM MMR mappings to accommodate changes for UV5. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-9-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update MMIOH references based on new UV5 MMRsMike Travis
Make modifications to the MMIOH mappings to accommodate changes for UV5. [ Fix W=1 build warnings. ] Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-8-mike.travis@hpe.com
2020-10-07x86/platform/uv: Add and decode Arch Type in UVsystabMike Travis
When the UV BIOS starts the kernel it passes the UVsystab info struct to the kernel which contains information elements more specific than ACPI, and generally pertinent only to the MMRs. These are read only fields so information is passed one way only. A new field starting with UV5 is the UV architecture type so the ACPI OEM_ID field can be used for other purposes going forward. The UV Arch Type selects the entirety of the MMRs available, with their addresses and fields defined in uv_mmrs.h. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-7-mike.travis@hpe.com
2020-10-07x86/platform/uv: Add UV5 direct referencesMike Travis
Add new references to UV5 (and UVY class) system MMR addresses and fields primarily caused by the expansion from 46 to 52 bits of physical memory address. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-6-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update UV MMRs for UV5Mike Travis
Update UV MMRs in uv_mmrs.h for UV5 based on Verilog output from the UV Hub hardware design files. This is the next UV architecture with a new class (UVY) being defined for 52 bit physical address masks. Uses a bitmask for UV arch identification so a single test can cover multiple versions. Includes other adjustments to match the uv_mmrs.h file to keep from encountering compile errors. New UV5 functionality is added in the patches that follow. [ Fix W=1 build warnings. ] Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-5-mike.travis@hpe.com
2020-10-07x86/platform/uv: Remove SCIR MMR references for UV systemsMike Travis
UV class systems no longer use System Controller for monitoring of CPU activity provided by this driver. Other methods have been developed for BIOS and the management controller (BMC). Remove that supporting code. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-3-mike.travis@hpe.com
2020-07-17x86/platform/uv: Remove support for UV1 platform from x2apic_uv_xsteve.wahl@hpe.com
UV1 is not longer supported. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200713212954.846026992@hpe.com
2020-05-23x86/apic/uv: Remove code for unused distributed GRU modeSteve Wahl
Distributed GRU mode appeared in only one generation of UV hardware, and no version of the BIOS has shipped with this feature enabled, and we have no plans to ever change that. The gru.s3.mode check has always been and will continue to be false. So remove this dead code. Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Dimitri Sivanich <sivanich@hpe.com> Link: https://lkml.kernel.org/r/20200513221123.GJ3240@raspberrypi
2020-05-07x86/platform/uv: Unexport uv_apicid_hibitsChristoph Hellwig
This variable is not used by modular code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200504171527.2845224-11-hch@lst.de
2020-05-07x86/platform/uv: Remove _uv_hub_info_check()Christoph Hellwig
Neither this functions nor the helpers used to implement it are used anywhere in the kernel tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Not-acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Russ Anderson <rja@hpe.com> Link: https://lkml.kernel.org/r/20200504171527.2845224-10-hch@lst.de
2020-05-07x86/platform/uv: Simplify uv_send_IPI_one()Christoph Hellwig
Merge two helpers only used by uv_send_IPI_one() into the main function. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Not-acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Russ Anderson <rja@hpe.com> Link: https://lkml.kernel.org/r/20200504171527.2845224-9-hch@lst.de
2020-05-07x86/platform/uv: Mark uv_min_hub_revision_id staticChristoph Hellwig
This variable is only used inside x2apic_uv_x and not even declared in a header. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Not-acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Russ Anderson <rja@hpe.com> Link: https://lkml.kernel.org/r/20200504171527.2845224-8-hch@lst.de
2020-05-07x86/platform/uv: Mark is_uv_hubless() staticChristoph Hellwig
is_uv_hubless() is only used in x2apic_uv_x.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Not-acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Russ Anderson <rja@hpe.com> Link: https://lkml.kernel.org/r/20200504171527.2845224-7-hch@lst.de
2020-01-17x86/apic/uv: Avoid unused variable warningArnd Bergmann
When CONFIG_PROC_FS is disabled, the compiler warns about an unused variable: arch/x86/kernel/apic/x2apic_uv_x.c: In function 'uv_setup_proc_files': arch/x86/kernel/apic/x2apic_uv_x.c:1546:8: error: unused variable 'name' [-Werror=unused-variable] char *name = hubless ? "hubless" : "hubbed"; Simplify the code so this variable is no longer needed. Fixes: 8785968bce1c ("x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20191212140419.315264-1-arnd@arndb.de
2019-10-07x86/platform/uv: Check EFI Boot to set reboot typeMike Travis
Change to checking for EFI Boot type from previous check on if this is a KDUMP kernel. This allows for KDUMP kernels that can handle EFI reboots. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145840.215091717@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07x86/platform/uv: Decode UVsystab InfoMike Travis
Decode the hubless UVsystab passed from BIOS to the kernel saving pertinent info in a similar manner that hubbed UVsystabs are decoded. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145840.135325066@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07x86/platform/uv: Add UV Hubbed/Hubless Proc FS FilesMike Travis
Indicate to UV user utilities that UV hubless support is available on this system via the existing /proc infterface. The current interface is maintained with the addition of new /proc leaves ("hubbed", "hubless", and "oemid") that contain the specific type of UV arch this one is. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145840.055590900@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07x86/platform/uv: Setup UV functions for Hubless UV SystemsMike Travis
Add more support for UV systems that do not contain a UV Hub (AKA "hubless"). This update adds support for additional functions required: Use PCH NMI handler instead of a UV Hub NMI handler. Initialize the UV BIOS callback interface used to support specific UV functions. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145839.975787119@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07x86/platform/uv: Return UV Hubless System TypeMike Travis
Return the type of UV hubless system for UV specific code that depends on that. Add a function to convert UV system type to bit pattern needed for is_uv_hubless(). Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145839.814880843@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07x86/platform/uv: Save OEM_ID from ACPI MADT probeMike Travis
Save the OEM_ID and OEM_TABLE_ID passed to the apic driver probe function for later use. Also, convert the char list arg passed from the kernel to a true null-terminated string. Signed-off-by: Mike Travis <mike.travis@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Hedi Berriche <hedi.berriche@hpe.com> Cc: Justin Ernst <justin.ernst@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russ Anderson <russ.anderson@hpe.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190910145839.732237241@stormcage.eag.rdlabs.hpecorp.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-07-25x86/apic/uv: Make x2apic_extra_bits staticThomas Gleixner
Not used outside of the UV apic source. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20190722105219.725264153@linutronix.de
2019-07-25x86/apic: Cleanup the include mazeThomas Gleixner
All of these APIC files include the world and some more. Remove the unneeded cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20190722105219.342631201@linutronix.de
2019-03-05mm: replace all open encodings for NUMA_NO_NODEAnshuman Khandual
Patch series "Replace all open encodings for NUMA_NO_NODE", v3. All these places for replacement were found by running the following grep patterns on the entire kernel code. Please let me know if this might have missed some instances. This might also have replaced some false positives. I will appreciate suggestions, inputs and review. 1. git grep "nid == -1" 2. git grep "node == -1" 3. git grep "nid = -1" 4. git grep "node = -1" This patch (of 2): At present there are multiple places where invalid node number is encoded as -1. Even though implicitly understood it is always better to have macros in there. Replace these open encodings for an invalid node number with the global macro NUMA_NO_NODE. This helps remove NUMA related assumptions like 'invalid node' from various places redirecting them to a common definition. Link: http://lkml.kernel.org/r/1545127933-10711-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> [ixgbe] Acked-by: Jens Axboe <axboe@kernel.dk> [mtip32xx] Acked-by: Vinod Koul <vkoul@kernel.org> [dmaengine.c] Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Acked-by: Doug Ledford <dledford@redhat.com> [drivers/infiniband] Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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