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187 commits

Author SHA1 Message Date
Steve Wahl
8a50c58519 x86/platform/uv: UV support for sub-NUMA clustering
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
2023-05-31 09:34:59 -07:00
Steve Wahl
8c646cee0a x86/platform/uv: Introduce helper function uv_pnode_to_socket.
Add and use uv_pnode_to_socket() function, which parallels other
helper functions in here, and will enable avoiding duplicate code
in an upcoming patch.

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/20230519190752.3297140-3-steve.wahl%40hpe.com
2023-05-31 09:34:59 -07:00
Steve Wahl
fd27bea340 x86/platform/uv: Add platform resolving #defines for misc GAM_MMIOH_REDIRECT*
Upcoming changes will require use of new #defines
UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK and
UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK, which provide the
appropriate values on different uv platforms.

Also, fix typo that defined a couple of "*_CONFIG0_*" values twice
where "*_CONFIG1_*" was intended.

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/20230519190752.3297140-2-steve.wahl%40hpe.com
2023-05-31 09:34:59 -07:00
Ingo Molnar
d9f6e12fb0 x86: Fix various typos in comments
Fix ~144 single-word typos in arch/x86/ code comments.

Doing this in a single commit should reduce the churn.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org
2021-03-18 15:31:53 +01:00
Mike Travis
a67fffb017 x86/platform/uv: Add kernel interfaces for obtaining system info
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
2020-12-07 19:44:54 +01:00
Justin Ernst
9a3c425cfd x86/platform/uv: Add and export uv_bios_* functions
Add additional uv_bios_call() variant functions to expose information
needed by the new uv_sysfs driver. This includes the addition of several
new data types defined by UV BIOS and used in the new functions.

Signed-off-by: Justin Ernst <justin.ernst@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/20201125175444.279074-3-justin.ernst@hpe.com
2020-11-26 12:50:44 +01:00
Jiri Slaby
b2896458b8 x86/platform/uv: Drop last traces of uv_flush_tlb_others
Commit 39297dde73 ("x86/platform/uv: Remove UV BAU TLB Shootdown
Handler") removed uv_flush_tlb_others. Its declaration was removed also
from asm/uv/uv.h. But only for the CONFIG_X86_UV=y case. The inline
definition (!X86_UV case) is still in place.

So remove this implementation with everything what was added to support
uv_flush_tlb_others:
* include of asm/tlbflush.h
* forward declarations of struct cpumask, mm_struct, and flush_tlb_info

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Steve Wahl <steve.wahl@hpe.com>
Link: https://lore.kernel.org/r/20201109093653.2042-1-jslaby@suse.cz
2020-11-11 13:16:51 +01:00
Mike Travis
7a6d94f0ed x86/platform/uv: Update Copyrights to conform to HPE standards
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
2020-10-07 09:10:07 +02:00
Mike Travis
ae5f8ce3c2 x86/platform/uv: Update for UV5 NMI MMR changes
The UV NMI MMR addresses and fields moved between UV4 and UV5
necessitating a rewrite of the UV NMI handler.  Adjust references
to accommodate those changes.

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/20201005203929.148656-13-mike.travis@hpe.com
2020-10-07 09:09:50 +02:00
Mike Travis
6a7cf55e9f x86/platform/uv: Update UV5 TSC checking
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
2020-10-07 09:09:04 +02:00
Mike Travis
1e61f5a95f x86/platform/uv: Add and decode Arch Type in UVsystab
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
2020-10-07 09:06:10 +02:00
Mike Travis
6c7794423a x86/platform/uv: Add UV5 direct references
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
2020-10-07 09:01:46 +02:00
Mike Travis
647128f153 x86/platform/uv: Update UV MMRs for UV5
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
2020-10-07 09:00:57 +02:00
Mike Travis
c4d9807744 x86/platform/uv: Remove SCIR MMR references for UV systems
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
2020-10-07 08:53:51 +02:00
Mike Travis
39297dde73 x86/platform/uv: Remove UV BAU TLB Shootdown Handler
The Broadcast Assist Unit (BAU) TLB shootdown handler is being rewritten
to become the UV BAU APIC driver. It is designed to speed up sending
IPIs to selective CPUs within the system. Remove the current TLB
shutdown handler (tlb_uv.c) file and a couple of kernel hooks in the
interim.

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/20201005203929.148656-2-mike.travis@hpe.com
2020-10-07 08:45:39 +02:00
Linus Torvalds
5183a617ec The biggest change is the removal of SGI UV1 support, which allowed the
removal of the legacy EFI old_mmap code as well.
 
 This removes quite a bunch of old code & quirks.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform updates from Ingo Molnar:
 "The biggest change is the removal of SGI UV1 support, which allowed
  the removal of the legacy EFI old_mmap code as well.

  This removes quite a bunch of old code & quirks"

* tag 'x86-platform-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/efi: Remove unused EFI_UV1_MEMMAP code
  x86/platform/uv: Remove uv bios and efi code related to EFI_UV1_MEMMAP
  x86/efi: Remove references to no-longer-used efi_have_uv1_memmap()
  x86/efi: Delete SGI UV1 detection.
  x86/platform/uv: Remove efi=old_map command line option
  x86/platform/uv: Remove vestigial mention of UV1 platform from bios header
  x86/platform/uv: Remove support for UV1 platform from uv
  x86/platform/uv: Remove support for uv1 platform from uv_hub
  x86/platform/uv: Remove support for UV1 platform from uv_bau
  x86/platform/uv: Remove support for UV1 platform from uv_mmrs
  x86/platform/uv: Remove support for UV1 platform from x2apic_uv_x
  x86/platform/uv: Remove support for UV1 platform from uv_tlb
  x86/platform/uv: Remove support for UV1 platform from uv_time
2020-08-03 17:38:43 -07:00
Randy Dunlap
de0038bfaf x86: uv: uv_hub.h: Delete duplicated word
Delete the repeated word "the".

[ mingo: While at it, also capitalize CPU properly. ]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200726004124.20618-4-rdunlap@infradead.org
2020-07-26 12:47:22 +02:00
steve.wahl@hpe.com
5d66253751 x86/platform/uv: Remove vestigial mention of UV1 platform from bios header
Remove UV1 reference as UV1 is not longer supported by HPE.

Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200713212955.435951508@hpe.com
2020-07-17 16:47:46 +02:00
steve.wahl@hpe.com
f584c75307 x86/platform/uv: Remove support for UV1 platform from uv
UV1 is not longer supported by HPE

Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200713212955.320087418@hpe.com
2020-07-17 16:47:46 +02:00
steve.wahl@hpe.com
9b9ee17241 x86/platform/uv: Remove support for uv1 platform from uv_hub
UV1 is not longer supported by HPE.

Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200713212955.203480177@hpe.com
2020-07-17 16:47:45 +02:00
steve.wahl@hpe.com
711621a098 x86/platform/uv: Remove support for UV1 platform from uv_bau
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/20200713212955.083309377@hpe.com
2020-07-17 16:47:45 +02:00
steve.wahl@hpe.com
3736e82d3a x86/platform/uv: Remove support for UV1 platform from uv_mmrs
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/20200713212954.964332370@hpe.com
2020-07-17 16:47:44 +02:00
Thomas Gleixner
720909a7ab x86/entry: Convert various system vectors
Convert various system vectors to IDTENTRY_SYSVEC:

  - Implement the C entry point with DEFINE_IDTENTRY_SYSVEC
  - Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC
  - Remove the ASM idtentries in 64-bit
  - Remove the BUILD_INTERRUPT entries in 32-bit
  - Remove the old prototypes

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20200521202119.464812973@linutronix.de
2020-06-11 15:15:14 +02:00
Linus Torvalds
f4dd60a3d4 Misc changes:
- Unexport various PAT primitives
 
  - Unexport per-CPU tlbstate
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2020-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Ingo Molnar:
 "Misc changes:

   - Unexport various PAT primitives

   - Unexport per-CPU tlbstate and uninline TLB helpers"

* tag 'x86-mm-2020-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  x86/tlb/uv: Add a forward declaration for struct flush_tlb_info
  x86/cpu: Export native_write_cr4() only when CONFIG_LKTDM=m
  x86/tlb: Restrict access to tlbstate
  xen/privcmd: Remove unneeded asm/tlb.h include
  x86/tlb: Move PCID helpers where they are used
  x86/tlb: Uninline nmi_uaccess_okay()
  x86/tlb: Move cr4_set_bits_and_update_boot() to the usage site
  x86/tlb: Move paravirt_tlb_remove_table() to the usage site
  x86/tlb: Move __flush_tlb_all() out of line
  x86/tlb: Move flush_tlb_others() out of line
  x86/tlb: Move __flush_tlb_one_kernel() out of line
  x86/tlb: Move __flush_tlb_one_user() out of line
  x86/tlb: Move __flush_tlb_global() out of line
  x86/tlb: Move __flush_tlb() out of line
  x86/alternatives: Move temporary_mm helpers into C
  x86/cr4: Sanitize CR4.PCE update
  x86/cpu: Uninline CR4 accessors
  x86/tlb: Uninline __get_current_cr3_fast()
  x86/mm: Use pgprotval_t in protval_4k_2_large() and protval_large_2_4k()
  x86/mm: Unexport __cachemode2pte_tbl
  ...
2020-06-05 11:18:53 -07:00
Christoph Hellwig
2981cf8361 x86/platform/uv: Remove the unused _uv_cpu_blade_processor_id() macro
No users 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/20200504171527.2845224-12-hch@lst.de
2020-05-07 15:32:23 +02:00
Christoph Hellwig
fbe1d37866 x86/platform/uv: Remove _uv_hub_info_check()
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
2020-05-07 15:32:23 +02:00
Christoph Hellwig
8e77554580 x86/platform/uv: Simplify uv_send_IPI_one()
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
2020-05-07 15:32:22 +02:00
Christoph Hellwig
e4dd8b8351 x86/platform/uv: Mark is_uv_hubless() static
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
2020-05-07 15:32:21 +02:00
Christoph Hellwig
cc19910587 x86/platform/uv: Remove the UV*_HUB_IS_SUPPORTED macros
All of the macros are always defined to one.  Remove them and the dead
code keyed off them.

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/20200504171527.2845224-6-hch@lst.de
2020-05-07 15:32:21 +02:00
Christoph Hellwig
32988cfd57 x86/platform/uv: Remove the uv_partition_coherence_id() macro
uv_partition_coherence_id() is only used once.  Just open code it in the
only user.

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/20200504171527.2845224-3-hch@lst.de
2020-05-07 15:32:19 +02:00
Christoph Hellwig
30ad8db3a2 x86/platform/uv: Mark uv_bios_call() and uv_bios_call_irqsave() static
Both functions are only used inside of bios_uv.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/20200504171527.2845224-2-hch@lst.de
2020-05-07 15:32:19 +02:00
Borislav Petkov
bd1de2a7aa x86/tlb/uv: Add a forward declaration for struct flush_tlb_info
... to fix these build warnings:

  In file included from ./arch/x86/include/asm/uv/uv_hub.h:22,
                   from drivers/misc/sgi-gru/grukdump.c:16:
  ./arch/x86/include/asm/uv/uv.h:39:21: warning: ‘struct flush_tlb_info’ declared \
     inside parameter list will not be visible outside of this definition or declaration
     39 |        const struct flush_tlb_info *info);
        |                     ^~~~~~~~~~~~~~
  In file included from ./arch/x86/include/asm/uv/uv_hub.h:22,
                   from drivers/misc/sgi-gru/grutlbpurge.c:28:
  ./arch/x86/include/asm/uv/uv.h:39:21: warning: ‘struct flush_tlb_info’ declared \
    inside parameter list will not be visible outside of this definition or declaration
     39 |        const struct flush_tlb_info *info);
        |                     ^~~~~~~~~~~~~~

  ...

after

  bfe3d8f631 ("x86/tlb: Restrict access to tlbstate")

restricted access to tlbstate.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200503103107.3419-1-bp@alien8.de
2020-05-03 21:43:47 +02:00
Benjamin Thiel
01bd18624d x86/platform/uv: Add a missing prototype for uv_bau_message_interrupt()
... in order to fix a -Wmissing-prototypes warning:

  arch/x86/platform/uv/tlb_uv.c:1275:6: warning:
  no previous prototype for ‘uv_bau_message_interrupt’ [-Wmissing-prototypes] \
	  void uv_bau_message_interrupt(struct pt_regs *regs)

Signed-off-by: Benjamin Thiel <b.thiel@posteo.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200327072621.2255-1-b.thiel@posteo.de
2020-03-27 10:54:52 +01:00
Mike Travis
4fb7d08707 x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops
The references in the is_uvX_hub() function uses the hub_info pointer
which will be NULL when the system is hubless.  This change avoids
that NULL dereference.  It is also an optimization in performance.

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/20190910145840.294981941@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07 13:42:11 +02:00
Mike Travis
8785968bce x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files
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>
2019-10-07 13:42:10 +02:00
Mike Travis
9743cb68f7 x86/platform/uv: Add return code to UV BIOS Init function
Add a return code to the UV BIOS init function that indicates the
successful initialization of the kernel/BIOS callback interface.

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/20190910145839.895739629@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-10-07 13:42:10 +02:00
Mike Travis
0959f8256a x86/platform/uv: Return UV Hubless System Type
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>
2019-10-07 13:42:10 +02:00
Ard Biesheuvel
ec7e1605d7 efi/x86: move UV_SYSTAB handling into arch/x86
The SGI UV UEFI machines are tightly coupled to the x86 architecture
so there is no need to keep any awareness of its existence in the
generic EFI layer, especially since we already have the infrastructure
to handle arch-specific configuration tables, and were even already
using it to some extent.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-08-08 11:01:48 +03:00
Thomas Gleixner
1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00
Linus Torvalds
610cd4eade Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 UV updates from Ingo Molnar:
 "Three UV related cleanups"

* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/UV: Use efi_enabled() instead of test_bit()
  x86/platform/UV: Remove uv_bios_call_reentrant()
  x86/platform/UV: Remove unnecessary #ifdef CONFIG_EFI
2019-03-07 18:26:39 -08:00
Hedi Berriche
f331e766c4 x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
Calls into UV firmware must be protected against concurrency, expose the
efi_runtime_lock to the UV platform, and use it to serialise UV BIOS
calls.

Signed-off-by: Hedi Berriche <hedi.berriche@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Russ Anderson <rja@hpe.com>
Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
Reviewed-by: Mike Travis <mike.travis@hpe.com>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: stable@vger.kernel.org # v4.9+
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190213193413.25560-5-hedi.berriche@hpe.com
2019-02-15 15:19:56 +01:00
Hedi Berriche
f816525d61 x86/platform/UV: Remove uv_bios_call_reentrant()
uv_bios_call_reentrant() has no callers nor is it exported, remove it.

Cleanup, no functional changes.

Signed-off-by: Hedi Berriche <hedi.berriche@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Russ Anderson <rja@hpe.com>
Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
Reviewed-by: Mike Travis <mike.travis@hpe.com>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190213193413.25560-3-hedi.berriche@hpe.com
2019-02-15 15:13:48 +01:00
Hedi Berriche
30ad3e031d x86/platform/UV: Remove unnecessary #ifdef CONFIG_EFI
CONFIG_EFI is implied by CONFIG_X86_UV and x86/platform/uv/bios_uv.c
requires the latter, get rid of the redundant #ifdef CONFIG_EFI
directives.

Cleanup, no functional changes.

Signed-off-by: Hedi Berriche <hedi.berriche@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Russ Anderson <rja@hpe.com>
Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
Reviewed-by: Mike Travis <mike.travis@hpe.com>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190213193413.25560-2-hedi.berriche@hpe.com
2019-02-15 15:05:15 +01:00
Mike Travis
20a8378aa9 x86/platform/uv: Provide is_early_uv_system()
Introduce is_early_uv_system() which uses efi.uv_systab to decide early
in the boot process whether the kernel runs on a UV system.

This is needed to skip other early setup/init code that might break
the UV platform if done too early such as before necessary ACPI tables
parsing takes place.

Suggested-by: Hedi Berriche <hedi.berriche@hpe.com>
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Russ Anderson <rja@hpe.com>
Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Dou Liyang <douly.fnst@cn.fujitsu.com>
Cc: Xiaoming Gao <gxm.linux.kernel@gmail.com>
Cc: Rajvi Jingar <rajvi.jingar@intel.com>
Link: https://lkml.kernel.org/r/20181002180144.801700401@stormcage.americas.sgi.com
2018-10-02 21:29:16 +02:00
mike.travis@hpe.com
bd47a85acd x86/platform/UV: Fix critical UV MMR address error
A critical error was found testing the fixed UV4 HUB in that an MMR address
was found to be incorrect.  This causes the virtual address space for
accessing the MMIOH1 region to be allocated with the incorrect size.

Fixes: 673aa20c55 ("x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes")
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Andrew Banman <andrew.banman@hpe.com>
Link: https://lkml.kernel.org/r/20180328174011.041801248@stormcage.americas.sgi.com
2018-03-28 20:19:45 +02:00
Andrew Banman
1da2fd61d9 x86/platform/uv/BAU: Replace hard-coded values with MMR definitions
Replaces hard-coded node ID shift for the descriptor base MMR to fix
initialization on UV4A while maintaining support for previous architectures.

Signed-off-by: Andrew Banman <abanman@hpe.com>
Acked-by: Mike Travis <mike.travis@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440592-44060-1-git-send-email-abanman@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-16 03:58:38 +01:00
Mike Travis
a631a0a7a3 x86/platform/UV: Fix UV4A BAU MMRs
Fixes to accommodate Intel Processor changes for UV4A broadcast assist unit
(BAU) MMRs.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Andrew Banman <abanman@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440405-20880-7-git-send-email-mike.travis@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-16 03:58:38 +01:00
Mike Travis
ecce47e0bd x86/platform/UV: Fix GAM MMR changes in UV4A
Intel processor changes necessitated UV4 HUB Global Address Memory
(GAM) fixes to accommodate support for those processors.  This patch
deals with the updated address range change from 46 to 52 bits in UV4A.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Andrew Banman <abanman@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440405-20880-5-git-send-email-mike.travis@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-16 03:58:37 +01:00
Mike Travis
8078d1951d x86/platform/UV: Add references to access fixed UV4A HUB MMRs
Add references to enable access to fixed UV4A (rev2) HUB MMRs.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Andrew Banman <abanman@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440405-20880-4-git-send-email-mike.travis@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-16 03:58:37 +01:00
Mike Travis
673aa20c55 x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes
Regenerate uv_mmrs.h file to accommodate fixes to UV4A MMRs.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Andrew Banman <abanman@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440405-20880-2-git-send-email-mike.travis@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-01-16 03:58:36 +01:00