A few fixes this time around:
- Fixup of some clock specifications for DRA7 (device-tree fix)
- Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
warnings at boot
- A few more minor fixups for OMAPs, most around display
- Enable STM32 QSPI as =y since their rootfs sometimes comes from
there
- Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool
- Fix of thermal zone definition for ux500 (5.4 regression)
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Olof Johansson:
"A few fixes this time around:
- Fixup of some clock specifications for DRA7 (device-tree fix)
- Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
warnings at boot
- A few more minor fixups for OMAPs, most around display
- Enable STM32 QSPI as =y since their rootfs sometimes comes from
there
- Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool
- Fix of thermal zone definition for ux500 (5.4 regression)"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: multi_v7_defconfig: Fix SPI_STM32_QSPI support
ARM: dts: ux500: Fix up the CPU thermal zone
arm64/ARM: configs: Change CONFIG_REMOTEPROC from m to y
ARM: dts: am4372: Set memory bandwidth limit for DISPC
ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
ARM: OMAP2+: Add missing LCDC midlemode for am335x
ARM: OMAP2+: Fix missing reset done flag for am3 and am43
ARM: dts: Fix gpio0 flags for am335x-icev2
ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules
ARM: omap2plus_defconfig: Enable DRM_TI_TFP410
DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
ARM: dts: Fix wrong clocks for dra7 mcasp
clk: ti: dra7: Fix mcasp8 clock bits
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
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Merge tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- remove unneeded ar-option and KBUILD_ARFLAGS
- remove long-deprecated SUBDIRS
- fix modpost to suppress false-positive warnings for UML builds
- fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
- make setlocalversion work for /bin/sh
- make header archive reproducible
- fix some Makefiles and documents
* tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kheaders: make headers archive reproducible
kbuild: update compile-test header list for v5.4-rc2
kbuild: two minor updates for Documentation/kbuild/modules.rst
scripts/setlocalversion: clear local variable to make it work for sh
namespace: fix namespace.pl script to support relative paths
video/logo: do not generate unneeded logo C files
video/logo: remove unneeded *.o pattern from clean-files
integrity: remove pointless subdir-$(CONFIG_...)
integrity: remove unneeded, broken attempt to add -fshort-wchar
modpost: fix static EXPORT_SYMBOL warnings for UML build
kbuild: correct formatting of header in kbuild module docs
kbuild: remove SUBDIRS support
kbuild: remove ar-option and KBUILD_ARFLAGS
- Default configs updates.
- Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i" constraint
for function arguments. Two kvm changes acked-by Christian Borntraeger.
- Fix -Wunused-but-set-variable warnings in mm code.
- Avoid a constant misuse in qdio.
- Handle a case when cpumf is temporarily unavailable.
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Merge tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- defconfig updates
- Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i"
constraint for function arguments. Two kvm changes acked-by Christian
Borntraeger.
- Fix -Wunused-but-set-variable warnings in mm code.
- Avoid a constant misuse in qdio.
- Handle a case when cpumf is temporarily unavailable.
* tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
KVM: s390: mark __insn32_query() as __always_inline
KVM: s390: fix __insn32_query() inline assembly
s390: update defconfigs
s390/pci: mark function(s) __always_inline
s390/mm: mark function(s) __always_inline
s390/jump_label: mark function(s) __always_inline
s390/cpu_mf: mark function(s) __always_inline
s390/atomic,bitops: mark function(s) __always_inline
s390/mm: fix -Wunused-but-set-variable warnings
s390: mark __cpacf_query() as __always_inline
s390/qdio: clarify size of the QIB parm area
s390/cpumf: Fix indentation in sampling device driver
s390/cpumsf: Check for CPU Measurement sampling
s390/cpumf: Use consistant debug print format
__insn32_query() will not compile if the compiler decides to not
inline it, since it contains an inline assembly with an "i" constraint
with variable contents.
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
The inline assembly constraints of __insn32_query() tell the compiler
that only the first byte of "query" is being written to. Intended was
probably that 32 bytes are written to.
Fix and simplify the code and just use a "memory" clobber.
Fixes: d668139718 ("KVM: s390: provide query function for instructions returning 32 byte")
Cc: stable@vger.kernel.org # v5.2+
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
- Build fixes for Cavium Octeon & PMC-Sierra MSP systems, as well as
all pre-MIPSr6 configurations built with binutils < 2.25.
- Boot fixes for 64-bit Loongson systems & SGI IP28 systems.
- Wire up the new clone3 syscall.
- Clean ups for a few build-time warnings.
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Merge tag 'mips_fixes_5.4_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Build fixes for Cavium Octeon & PMC-Sierra MSP systems, as well as
all pre-MIPSr6 configurations built with binutils < 2.25.
- Boot fixes for 64-bit Loongson systems & SGI IP28 systems.
- Wire up the new clone3 syscall.
- Clean ups for a few build-time warnings.
* tag 'mips_fixes_5.4_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: fw/arc: Remove unused addr variable
MIPS: pmcs-msp71xx: Remove unused addr variable
MIPS: pmcs-msp71xx: Add missing MAX_PROM_MEM definition
mips: Loongson: Fix the link time qualifier of 'serial_exit()'
MIPS: init: Prevent adding memory before PHYS_OFFSET
MIPS: init: Fix reservation of memory between PHYS_OFFSET and mem start
MIPS: VDSO: Fix build for binutils < 2.25
MIPS: VDSO: Remove unused gettimeofday.c
MIPS: Wire up clone3 syscall
MIPS: octeon: Include required header; fix octeon ethernet build
MIPS: cpu-bugs64: Mark inline functions as __always_inline
MIPS: dts: ar9331: fix interrupt-controller size
MIPS: Loongson64: Fix boot failure after dropping boot_mem_map
Two RISC-V fixes for v5.4-rc2:
- Ensure that exclusive-load reservations are terminated after system
call or exception handling. This primarily affects QEMU, which does
not expire load reservations.
- Fix an issue primarily affecting RV32 platforms that can cause the
DT header to be corrupted, causing boot failures.
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Merge tag 'riscv/for-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Ensure that exclusive-load reservations are terminated after system
call or exception handling. This primarily affects QEMU, which does
not expire load reservations.
- Fix an issue primarily affecting RV32 platforms that can cause the DT
header to be corrupted, causing boot failures.
* tag 'riscv/for-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix memblock reservation for device tree blob
RISC-V: Clear load reservations while restoring hart contexts
The addr variable in prom_free_prom_memory() has been unused since
commit 0df1007677 ("MIPS: fw: Record prom memory"), leading to a
compiler warning:
arch/mips/fw/arc/memory.c:163:16:
warning: unused variable 'addr' [-Wunused-variable]
Fix this by removing the unused variable.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 0df1007677 ("MIPS: fw: Record prom memory")
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
a nested hypervisor has always been busted on Broadwell and newer processors,
and that has finally been fixed.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"ARM and x86 bugfixes of all kinds.
The most visible one is that migrating a nested hypervisor has always
been busted on Broadwell and newer processors, and that has finally
been fixed"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
KVM: x86: omit "impossible" pmu MSRs from MSR list
KVM: nVMX: Fix consistency check on injected exception error code
KVM: x86: omit absent pmu MSRs from MSR list
selftests: kvm: Fix libkvm build error
kvm: vmx: Limit guest PMCs to those supported on the host
kvm: x86, powerpc: do not allow clearing largepages debugfs entry
KVM: selftests: x86: clarify what is reported on KVM_GET_MSRS failure
KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF
selftests: kvm: add test for dirty logging inside nested guests
KVM: x86: fix nested guest live migration with PML
KVM: x86: assign two bits to track SPTE kinds
KVM: x86: Expose XSAVEERPTR to the guest
kvm: x86: Enumerate support for CLZERO instruction
kvm: x86: Use AMD CPUID semantics for AMD vCPUs
kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH
KVM: X86: Fix userspace set invalid CR4
kvm: x86: Fix a spurious -E2BIG in __do_cpuid_func
KVM: LAPIC: Loosen filter for adaptive tuning of lapic_timer_advance_ns
KVM: arm/arm64: vgic: Use the appropriate TRACE_INCLUDE_PATH
arm64: KVM: Kill hyp_alternate_select()
...
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Merge tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes and cleanups from Juergen Gross:
- a fix in the Xen balloon driver avoiding hitting a BUG_ON() in some
cases, plus a follow-on cleanup series for that driver
- a patch for introducing non-blocking EFI callbacks in Xen's EFI
driver, plu a cleanup patch for Xen EFI handling merging the x86 and
ARM arch specific initialization into the Xen EFI driver
- a fix of the Xen xenbus driver avoiding a self-deadlock when cleaning
up after a user process has died
- a fix for Xen on ARM after removal of ZONE_DMA
- a cleanup patch for avoiding build warnings for Xen on ARM
* tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/xenbus: fix self-deadlock after killing user process
xen/efi: have a common runtime setup function
arm: xen: mm: use __GPF_DMA32 for arm64
xen/balloon: Clear PG_offline in balloon_retrieve()
xen/balloon: Mark pages PG_offline in balloon_append()
xen/balloon: Drop __balloon_append()
xen/balloon: Set pages PageOffline() in balloon_add_region()
ARM: xen: unexport HYPERVISOR_platform_op function
xen/efi: Set nonblocking callbacks
Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Always inline asm inlines with variable operands for "i" constraints,
since they won't compile if the compiler would decide to not inline
them.
Reported-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Convert two functions to static inline to get ride of W=1 GCC warnings
like,
mm/gup.c: In function 'gup_pte_range':
mm/gup.c:1816:16: warning: variable 'ptem' set but not used
[-Wunused-but-set-variable]
pte_t *ptep, *ptem;
^~~~
mm/mmap.c: In function 'acct_stack_growth':
mm/mmap.c:2322:16: warning: variable 'new_start' set but not used
[-Wunused-but-set-variable]
unsigned long new_start;
^~~~~~~~~
Signed-off-by: Qian Cai <cai@lca.pw>
Link: https://lore.kernel.org/lkml/1570138596-11913-1-git-send-email-cai@lca.pw/
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
arch/s390/kvm/kvm-s390.c calls on several places __cpacf_query() directly,
which makes it impossible to meet the "i" constraint for the asm operands
(opcode in this case).
As we are now force-enabling CONFIG_OPTIMIZE_INLINING on all
architectures, this causes a build failure on s390:
In file included from arch/s390/kvm/kvm-s390.c:44:
./arch/s390/include/asm/cpacf.h: In function '__cpacf_query':
./arch/s390/include/asm/cpacf.h:179:2: warning: asm operand 3 probably doesn't match constraints
179 | asm volatile(
| ^~~
./arch/s390/include/asm/cpacf.h:179:2: error: impossible constraint in 'asm'
Mark __cpacf_query() as __always_inline in order to fix that, analogically
how we fixes __cpacf_check_opcode(), cpacf_query_func() and scpacf_query()
already.
Reported-and-tested-by: Michal Kubecek <mkubecek@suse.cz>
Fixes: d83623c5ea ("s390: mark __cpacf_check_opcode() and cpacf_query_func() as __always_inline")
Fixes: e60fb8bf68 ("s390/cpacf: mark scpacf_query() as __always_inline")
Fixes: ac7c3e4ff4 ("compiler: enable CONFIG_OPTIMIZE_INLINING forcibly")
Fixes: 9012d01166 ("compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/lkml/nycvar.YFH.7.76.1910012203010.13160@cbobk.fhfr.pm
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18
contiguous MSR indices reserved by Intel for event selectors.
Since some machines actually have MSRs past the reserved range,
filtering them against x86_pmu.num_counters_gp may have false
positives. Cut the list to 18 entries to avoid this.
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Jim Mattson <jamttson@google.com>
Fixes: e2ada66ec4 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The addr variable in prom_free_prom_memory() has been unused since
commit b3c948e2c0 ("MIPS: msp: Record prom memory"), causing a warning
& build failure due to -Werror. Remove the unused variable.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b3c948e2c0 ("MIPS: msp: Record prom memory")
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
Commit b3c948e2c0 ("MIPS: msp: Record prom memory") introduced use of
a MAX_PROM_MEM value but didn't define it. A bounds check in
prom_meminit() suggests its value was supposed to be 5, so define it as
such & adjust the bounds check to use the macro rather than a magic
number.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b3c948e2c0 ("MIPS: msp: Record prom memory")
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
Here are fixes for omaps to deal with few regressions, and to fix
more boot time errors and warnings:
- The recent ti-sysc interconnect target module driver changes had
incorrect clock bits for both clocks and dts that cause warnings
- For omap3-gta04, gpio changes caused the LCD to break a while back,
and after discussing things the right fix is to set spi-cs-high
- Recent omapdrm changes to use generic panels caused tfp410 to be
disabled as we now must enable the generic support for it in
defconfig
- Recent omapdrm and backlight changes also finally made droid4 LCD
to work, so let's enable it in the defconfig it can be used out
of the box. This is not strictly a fix, but we still also have the
older CONFIG_MFD_TI_LMU options available so this cuts down the
confusion for trying to guess which display and which backlight
is needed
- Recent ti-sysc interconnect target module changes need the gpio
module disabled on some boards, but this now needs to happen at
the module level, not at the gpio driver level
- Recent changes to probe system timers with ti-sysc caused warnings
about mismatch in syconfig registers, so let's configure the option
for RESET_STATUS as available in the TRMs
- Recent changes to probe LCDC with ti-sysc caused warnings about
mismatch in sysconfig registers, so let's configure the missing
idlemodes for both platform data and dts as documented in TRMs
- Since we moved mach-omap2 to probe with device tree, we've been
getting voltage controller warnings. Turns out this code is no
longer needed, so let's just remove omap2_set_init_voltage() to
get rid of the pointless warnings
- Configure am4372 dispc memory bandwidth to avoid underflow errors
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Merge tag 'omap-for-v5.4/fixes-rc1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps for v5.4-rc cycle
Here are fixes for omaps to deal with few regressions, and to fix
more boot time errors and warnings:
- The recent ti-sysc interconnect target module driver changes had
incorrect clock bits for both clocks and dts that cause warnings
- For omap3-gta04, gpio changes caused the LCD to break a while back,
and after discussing things the right fix is to set spi-cs-high
- Recent omapdrm changes to use generic panels caused tfp410 to be
disabled as we now must enable the generic support for it in
defconfig
- Recent omapdrm and backlight changes also finally made droid4 LCD
to work, so let's enable it in the defconfig it can be used out
of the box. This is not strictly a fix, but we still also have the
older CONFIG_MFD_TI_LMU options available so this cuts down the
confusion for trying to guess which display and which backlight
is needed
- Recent ti-sysc interconnect target module changes need the gpio
module disabled on some boards, but this now needs to happen at
the module level, not at the gpio driver level
- Recent changes to probe system timers with ti-sysc caused warnings
about mismatch in syconfig registers, so let's configure the option
for RESET_STATUS as available in the TRMs
- Recent changes to probe LCDC with ti-sysc caused warnings about
mismatch in sysconfig registers, so let's configure the missing
idlemodes for both platform data and dts as documented in TRMs
- Since we moved mach-omap2 to probe with device tree, we've been
getting voltage controller warnings. Turns out this code is no
longer needed, so let's just remove omap2_set_init_voltage() to
get rid of the pointless warnings
- Configure am4372 dispc memory bandwidth to avoid underflow errors
* tag 'omap-for-v5.4/fixes-rc1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am4372: Set memory bandwidth limit for DISPC
ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
ARM: OMAP2+: Add missing LCDC midlemode for am335x
ARM: OMAP2+: Fix missing reset done flag for am3 and am43
ARM: dts: Fix gpio0 flags for am335x-icev2
ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules
ARM: omap2plus_defconfig: Enable DRM_TI_TFP410
DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
ARM: dts: Fix wrong clocks for dra7 mcasp
clk: ti: dra7: Fix mcasp8 clock bits
Link: https://lore.kernel.org/r/pull-1570040410-308159@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Current versions of Intel's SDM incorrectly state that "bits 31:15 of
the VM-Entry exception error-code field" must be zero. In reality, bits
31:16 must be zero, i.e. error codes are 16-bit values.
The bogus error code check manifests as an unexpected VM-Entry failure
due to an invalid code field (error number 7) in L1, e.g. when injecting
a #GP with error_code=0x9f00.
Nadav previously reported the bug[*], both to KVM and Intel, and fixed
the associated kvm-unit-test.
[*] https://patchwork.kernel.org/patch/11124749/
Reported-by: Nadav Amit <namit@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Remove the now obsolete hyp_alternate_select construct
- Fix the TRACE_INCLUDE_PATH macro in the vgic code
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Merge tag 'kvmarm-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm fixes for 5.4, take #1
- Remove the now obsolete hyp_alternate_select construct
- Fix the TRACE_INCLUDE_PATH macro in the vgic code
INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18 contiguous
MSR indices reserved by Intel for event selectors. Since some machines
actually have MSRs past the reserved range, these may survive the
filtering of msrs_to_save array and would be rejected by KVM_GET/SET_MSR.
To avoid this, cut the list to whatever CPUID reports for the host's
architectural PMU.
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Jim Mattson <jmattson@google.com>
Fixes: e2ada66ec4 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On some SGI machines (IP28 and IP30) a small region of memory is mirrored
to pyhsical address 0 for exception vectors while rest of the memory
is reachable at a higher physical address. ARC PROM marks this
region as reserved, but with commit a94e4f24ec ("MIPS: init: Drop
boot_mem_map") this chunk is used, when searching for start of ram,
which breaks at least IP28 and IP30 machines. To fix this
add_region_memory() checks for start address < PHYS_OFFSET and ignores
these chunks.
Fixes: a94e4f24ec ("MIPS: init: Drop boot_mem_map")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Fix calculation of the size for reserving memory between PHYS_OFFSET
and real memory start.
Fixes: a94e4f24ec ("MIPS: init: Drop boot_mem_map")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Versions of binutils prior to 2.25 are unable to link our VDSO due to an
unsupported R_MIPS_PC32 relocation generated by the ".word _start - ."
line of the inline asm in get_vdso_base(). As such, the intent is that
when building with binutils older than 2.25 we don't build code for
gettimeofday() & friends in the VDSO that rely upon get_vdso_base().
Commit 24640f233b ("mips: Add support for generic vDSO") converted us
to using generic VDSO infrastructure, and as part of that the
gettimeofday() functionality moved to a new vgettimeofday.c file. The
check for binutils < 2.25 wasn't updated to handle this new filename,
and so it continues trying to remove the old unused filename from the
build. The end result is that we try to include the gettimeofday() code
in builds that will fail to link.
Fix this by updating the binutils < 2.25 case to remove vgettimeofday.c
from obj-vdso-y, rather than gettimeofday.c.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 24640f233b ("mips: Add support for generic vDSO")
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: linux-mips@vger.kernel.org
arch/mips/vdso/gettimeofday.c has been unused since commit 24640f233b
("mips: Add support for generic vDSO"). Remove the dead code.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 24640f233b ("mips: Add support for generic vDSO")
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: linux-mips@vger.kernel.org
Wire up the new clone3 syscall for MIPS, using save_static_function() to
generate a wrapper that saves registers $s0-$s7 prior to invoking the
generic sys_clone3 function just like we do for plain old clone.
Tested atop 64r6el_defconfig using o32, n32 & n64 builds of the simple
test program from:
https://lore.kernel.org/lkml/20190716130631.tohj4ub54md25dys@brauner.io/
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Christian Brauner <christian@brauner.io>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: linux-mips@vger.kernel.org
Commit 171a9bae68 ("staging/octeon: Allow test build on !MIPS") moved
the inclusion of a bunch of headers by various files in the Octeon
ethernet driver into a common header, but in doing so it changed the
order in which those headers are included.
Prior to the referenced commit drivers/staging/octeon/ethernet.c
included asm/octeon/cvmx-pip.h before asm/octeon/cvmx-ipd.h, which makes
use of the CVMX_PIP_SFT_RST definition pulled in by the former. After
commit 171a9bae68 ("staging/octeon: Allow test build on !MIPS") we
pull in asm/octeon/cvmx-ipd.h first & builds fail with:
In file included from drivers/staging/octeon/octeon-ethernet.h:27,
from drivers/staging/octeon/ethernet.c:22:
arch/mips/include/asm/octeon/cvmx-ipd.h: In function 'cvmx_ipd_free_ptr':
arch/mips/include/asm/octeon/cvmx-ipd.h:330:27: error: storage size of
'pip_sft_rst' isn't known
union cvmx_pip_sft_rst pip_sft_rst;
^~~~~~~~~~~
arch/mips/include/asm/octeon/cvmx-ipd.h:331:36: error: 'CVMX_PIP_SFT_RST'
undeclared (first use in this function); did you mean 'CVMX_CIU_SOFT_RST'?
pip_sft_rst.u64 = cvmx_read_csr(CVMX_PIP_SFT_RST);
^~~~~~~~~~~~~~~~
CVMX_CIU_SOFT_RST
arch/mips/include/asm/octeon/cvmx-ipd.h:331:36: note: each undeclared
identifier is reported only once for each function it appears in
arch/mips/include/asm/octeon/cvmx-ipd.h:330:27: warning: unused variable
'pip_sft_rst' [-Wunused-variable]
union cvmx_pip_sft_rst pip_sft_rst;
^~~~~~~~~~~
make[4]: *** [scripts/Makefile.build:266: drivers/staging/octeon/ethernet.o]
Error 1
make[3]: *** [scripts/Makefile.build:509: drivers/staging/octeon] Error 2
Fix this by having asm/octeon/cvmx-ipd.h include the
asm/octeon/cvmx-pip-defs.h header that it is reliant upon, rather than
requiring its users to pull in that header before it.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 171a9bae68 ("staging/octeon: Allow test build on !MIPS")
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: linux-mips@vger.kernel.org
Cc: David S . Miller <davem@davemloft.net>
Cc: Matthew Wilcox <willy@infradead.org>
Today the EFI runtime functions are setup in architecture specific
code (x86 and arm), with the functions themselves living in drivers/xen
as they are not architecture dependent.
As the setup is exactly the same for arm and x86 move the setup to
drivers/xen, too. This at once removes the need to make the single
functions global visible.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
[boris: "Dropped EXPORT_SYMBOL_GPL(xen_efi_runtime_setup)"]
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
arm64 shares some code under arch/arm/xen, including mm.c.
However ZONE_DMA is removed by commit
ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32").
So add a check if CONFIG_ZONE_DMA32 is enabled use __GFP_DMA32.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
This fixes an error with how the FDT blob is reserved in memblock.
An incorrect physical address calculation exposed the FDT header to
unintended corruption, which typically manifested with of_fdt_raw_init()
faulting during late boot after fdt_totalsize() returned a wrong value.
Systems with smaller physical memory sizes more frequently trigger this
issue, as the kernel is more likely to allocate from the DMA32 zone
where bbl places the DTB after the kernel image.
Commit 671f9a3e2e ("RISC-V: Setup initial page tables in two stages")
changed the mapping of the DTB to reside in the fixmap area.
Consequently, early_init_fdt_reserve_self() cannot be used anymore in
setup_bootmem() since it relies on __pa() to derive a physical address,
which does not work with dtb_early_va that is no longer a valid kernel
logical address.
The reserved[0x1] region shows the effect of the pointer underflow
resulting from the __pa(initial_boot_params) offset subtraction:
[ 0.000000] MEMBLOCK configuration:
[ 0.000000] memory size = 0x000000001fe00000 reserved size = 0x0000000000a2e514
[ 0.000000] memory.cnt = 0x1
[ 0.000000] memory[0x0] [0x0000000080200000-0x000000009fffffff], 0x000000001fe00000 bytes flags: 0x0
[ 0.000000] reserved.cnt = 0x2
[ 0.000000] reserved[0x0] [0x0000000080200000-0x0000000080c2dfeb], 0x0000000000a2dfec bytes flags: 0x0
[ 0.000000] reserved[0x1] [0xfffffff080100000-0xfffffff080100527], 0x0000000000000528 bytes flags: 0x0
With the fix applied:
[ 0.000000] MEMBLOCK configuration:
[ 0.000000] memory size = 0x000000001fe00000 reserved size = 0x0000000000a2e514
[ 0.000000] memory.cnt = 0x1
[ 0.000000] memory[0x0] [0x0000000080200000-0x000000009fffffff], 0x000000001fe00000 bytes flags: 0x0
[ 0.000000] reserved.cnt = 0x2
[ 0.000000] reserved[0x0] [0x0000000080200000-0x0000000080c2dfeb], 0x0000000000a2dfec bytes flags: 0x0
[ 0.000000] reserved[0x1] [0x0000000080e00000-0x0000000080e00527], 0x0000000000000528 bytes flags: 0x0
Fixes: 671f9a3e2e ("RISC-V: Setup initial page tables in two stages")
Signed-off-by: Albert Ou <aou@eecs.berkeley.edu>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
This is almost entirely a comment. The bug is unlikely to manifest on
existing hardware because there is a timeout on load reservations, but
manifests on QEMU because there is no timeout.
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Commit ac7c3e4ff4 ("compiler: enable CONFIG_OPTIMIZE_INLINING
forcibly") allows compiler to uninline functions marked as 'inline'.
Leading to section mismatch in this case.
Since we're using const variables to pass assembly flags, 'inline's
can't be dropped. So we simply mark them as __always_inline.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: linux-mips@vger.kernel.org
[paul.burton@mips.com:
- Annotate these functions with __init, even if it only serves to
inform human readers when the code can be used.
- Drop the __always_inline from check_daddi() & check_daddiu() which
don't use arguments as immediates in inline asm.
- Rewrap the commit message.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
HYPERVISOR_platform_op() is an inline function and should not
be exported. Since commit 15bfc2348d ("modpost: check for
static EXPORT_SYMBOL* functions"), this causes a warning:
WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL
Instead, export the underlying function called by the static inline:
HYPERVISOR_platform_op_raw.
Fixes: 15bfc2348d ("modpost: check for static EXPORT_SYMBOL* functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
This fixes up the default ux500 CPU thermal zone:
- Set polling delay to 0 and explain why
- Set passive polling delay to 250
- Remove restrictions from the CPU cooling device,
we should use all cpufreq steps to cool down if
needed.
Link: https://lore.kernel.org/r/20191001074628.8122-1-linus.walleij@linaro.org
Fixes: b786a05f6c ("ARM: dts: ux500: Update thermal zone")
Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
KVM can only virtualize as many PMCs as the host supports.
Limit the number of generic counters and fixed counters to the number
of corresponding counters supported on the host, rather than to
INTEL_PMC_MAX_GENERIC and INTEL_PMC_MAX_FIXED, respectively.
Note that INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18
contiguous MSR indices reserved by Intel for event selectors. Since
the existing code relies on a contiguous range of MSR indices for
event selectors, it can't possibly work for more than 18 general
purpose counters.
Fixes: f5132b0138 ("KVM: Expose a version 2 architectural PMU to a guests")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The QIB parm area is 128 bytes long. Current code consistently misuses
an _entirely unrelated_ QDIO constant, merely because it has the same
value. Stop doing so.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Fix indentation in the s390 CPU Measuement Facility
sampling device dirver.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
s390 IBM z15 introduces a check if the CPU Mesurement Facility
sampling is temporarily unavailable. If this is the case return -EBUSY
and abort the setup of CPU Measuement facility sampling.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Use consistant debug print format of the form variable
blank value.
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Other parts of the kernel expect these nonblocking EFI callbacks to
exist and crash when running under Xen. Since the implementations of
xen_efi_set_variable() and xen_efi_query_variable_info() do not take any
locks, use them for the nonblocking callbacks too.
Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Commit 40df759e2b ("kbuild: Fix build with binutils <= 2.19")
introduced ar-option and KBUILD_ARFLAGS to deal with old binutils.
According to Documentation/process/changes.rst, the current minimal
supported version of binutils is 2.21 so you can assume the 'D' option
is always supported. Not only GNU ar but also llvm-ar supports it.
With the 'D' option hard-coded, there is no more user of ar-option
or KBUILD_ARFLAGS.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
It is two registers each of 4 byte.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
From commit a94e4f24ec ("MIPS: init: Drop boot_mem_map") onwards,
add_memory_region() is handled by memblock_add()/memblock_reserve()
directly and all bootmem API should be converted to memblock API.
Otherwise it will lead to boot failure, especially in the NUMA case
because add_memory_region lose the node_id information.
Fixes: a94e4f24ec ("MIPS: init: Drop boot_mem_map")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
[paul.burton@mips.com:
- Invert node_id check to de-indent the switch statement & avoid lines
over 80 characters.
- Fixup commit reference in commit message.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-mips@vger.kernel.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Huacai Chen <chenhuacai@gmail.com>
Commit 6334150e9a ("remoteproc: don't allow modular build")
changes CONFIG_REMOTEPROC to a boolean from a tristate config
option which inhibits all defconfigs marking CONFIG_REMOTEPROC as
a module in compiling the remoteproc and dependent config options.
So fix the configs to have CONFIG_REMOTEPROC built in.
Link: https://lore.kernel.org/r/20190920075946.13282-5-j-keerthy@ti.com
Fixes: 6334150e9a ("remoteproc: don't allow modular build")
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Will Deacon <will@kernel.org>
[olof: Fixed up all 4 occurrances in this one commit]
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds