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When switching to an 'mm_struct' for the first time following an ASID
rollover, a new ASID may be allocated and assigned to 'mm->context.id'.
This reassignment can happen concurrently with other operations on the
mm, such as unmapping pages and subsequently issuing TLB invalidation.
Consequently, we need to ensure that (a) accesses to 'mm->context.id'
are atomic and (b) all page-table updates made prior to a TLBI using the
old ASID are guaranteed to be visible to CPUs running with the new ASID.
This was found by inspection after reviewing the VMID changes from
Shameer but it looks like a real (yet hard to hit) bug.
Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Jade Alglave <jade.alglave@arm.com>
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210806113109.2475-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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A warning as below may be occasionally triggered in an ADL machine when
these conditions occur:
- Two perf record commands run one by one. Both record a PEBS event.
- Both runs on small cores.
- They have different adaptive PEBS configuration (PEBS_DATA_CFG).
[ ] WARNING: CPU: 4 PID: 9874 at arch/x86/events/intel/ds.c:1743 setup_pebs_adaptive_sample_data+0x55e/0x5b0
[ ] RIP: 0010:setup_pebs_adaptive_sample_data+0x55e/0x5b0
[ ] Call Trace:
[ ] <NMI>
[ ] intel_pmu_drain_pebs_icl+0x48b/0x810
[ ] perf_event_nmi_handler+0x41/0x80
[ ] </NMI>
[ ] __perf_event_task_sched_in+0x2c2/0x3a0
Different from the big core, the small core requires the ACK right
before re-enabling counters in the NMI handler, otherwise a stale PEBS
record may be dumped into the later NMI handler, which trigger the
warning.
Add a new mid_ack flag to track the case. Add all PMI handler bits in
the struct x86_hybrid_pmu to track the bits for different types of
PMUs. Apply mid ACK for the small cores on an Alder Lake machine.
The existing hybrid() macro has a compile error when taking address of
a bit-field variable. Add a new macro hybrid_bit() to get the
bit-field value of a given PMU.
Fixes: f83d2f91d259 ("perf/x86/intel: Add Alder Lake Hybrid support")
Reported-by: Ammy Yi <ammy.yi@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Ammy Yi <ammy.yi@intel.com>
Link: https://lkml.kernel.org/r/1627997128-57891-1-git-send-email-kan.liang@linux.intel.com
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gfn_to_rmap was removed in the previous patch so there is no need to
retain the double underscore on __gfn_to_rmap.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210804222844.1419481-7-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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rmap_add() and rmap_recycle() both run in the context of the vCPU and
thus we can use kvm_vcpu_gfn_to_memslot() to look up the memslot. This
enables rmap_add() and rmap_recycle() to take advantage of
vcpu->last_used_slot and avoid expensive memslot searching.
This change improves the performance of "Populate memory time" in
dirty_log_perf_test with tdp_mmu=N. In addition to improving the
performance, "Populate memory time" no longer scales with the number
of memslots in the VM.
Command | Before | After
------------------------------- | ---------------- | -------------
./dirty_log_perf_test -v64 -x1 | 15.18001570s | 14.99469366s
./dirty_log_perf_test -v64 -x64 | 18.71336392s | 14.98675076s
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210804222844.1419481-6-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The existing TDP MMU methods to handle dirty logging are vcpu-agnostic
since they can be driven by MMU notifiers and other non-vcpu-specific
events in addition to page faults. However this means that the TDP MMU
is not benefiting from the new vcpu->last_used_slot. Fix that by
introducing a tdp_mmu_map_set_spte_atomic() which is only called during
a TDP page fault and has access to the kvm_vcpu for fast slot lookups.
This improves "Populate memory time" in dirty_log_perf_test by 5%:
Command | Before | After
------------------------------- | ---------------- | -------------
./dirty_log_perf_test -v64 -x64 | 5.472321072s | 5.169832886s
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210804222844.1419481-5-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Make search_memslots unconditionally search all memslots and move the
last_used_slot logic up one level to __gfn_to_memslot. This is in
preparation for introducing a per-vCPU last_used_slot.
As part of this change convert existing callers of search_memslots to
__gfn_to_memslot to avoid making any functional changes.
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210804222844.1419481-3-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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lru_slot is used to keep track of the index of the most-recently used
memslot. The correct acronym would be "mru" but that is not a common
acronym. So call it last_used_slot which is a bit more obvious.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210804222844.1419481-2-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The board features a 128MiB NAND chip and recently linux gained support
for the NAND controller on the Zynq SoC. Thus add the corresponding
devicetree nodes.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210616155437.27378-4-michael@walle.cc
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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Recently, a driver for the ARM Primecell PL35x static memory controller
(including NAND controller) was added in linux. Add the corresponding
device tree node.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210616155437.27378-3-michael@walle.cc
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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After years, linux finally got a driver for the PL35x NAND controller
found on the Xilinx Zynq-7000 SoC for example. Enable support for this
driver.
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210616155437.27378-2-michael@walle.cc
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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When converting arm64 to modern assembler annotations __bad_stack was left
as a raw local label without annotations. While this will have little if
any practical impact at present it may cause issues in the future if we
start using the annotations for things like reliable stack trace. Add
SYM_CODE annotations to fix this.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210804181710.19059-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Remove clk_ignore_unused from bootargs as it's no more needed.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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Remove clk_ignore_unused from bootargs as it's no more needed.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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Remove clk_ignore_unused from bootargs as it's no more needed.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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Remove clk_ignore_unused from bootargs as it's no more needed.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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4KOpen (B2264) is a board based on the STMicroelectronics STiH418 soc:
- 2GB DDR
- HDMI
- Ethernet 1000-BaseT
- PCIe (mini PCIe connector)
- MicroSD slot
- USB2 and USB3 connectors
- Sata
- 40 pins GPIO header
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The STiH418 embedded the same sensor as the STiH410.
This commit adds the corresponding node, relying on the st_thermal
driver.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The rng11 is not available on the STiH418 hence is disabled in the
stih418.dtsi
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The STiH407 family (and further versions STiH410/STiH418) embedded
a serial flash controller allowing fast access to SPI-NOR.
This commit adds the corresponding node, relying on the st-spi-fsm
drivers.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-fsyn driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-fsyn driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-fsyn driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-pll driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-pll driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The clkgen-pll driver now embed the clock names (assuming the
right compatible is used). Remove all clock-output-names property
and update when necessary the compatible.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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With the introduction of new flexgen compatible within the clk-flexgen
driver, remove the clock-output-names entry from the flexgen nodes
and set the new proper compatible corresponding.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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With the introduction of new flexgen compatible within the clk-flexgen
driver, remove the clock-output-names entry from the flexgen nodes
and set the new proper compatible corresponding.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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With the introduction of new flexgen compatible within the clk-flexgen
driver, remove the clock-output-names entry from the flexgen nodes
and set the new proper compatible corresponding.
Signed-off-by: Alain Volmat <avolmat@me.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
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The OMAP_PACKAGE_* Kconfig entries are no longer referenced
in the kernel so can be dropped as they're obsolete.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The MACH_OMAP3_PANDORA is no longer referenced anywhere in the kernel
options so it can now be dropped as the board has long moved to DT.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, Switch BeagleBone boards to use new cpsw switch driver. Those boards
have or 2 Ext. port wired and configured in dual_mac mode by default, or
only 1 Ext. port.
For am335x-sancloud-bbe-common.dtsi also removed duplicated davinci_mdio DT
nodes which already defined in am335x-bone-common.dtsi.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Update ethernet aliases to point at CPSW switchdev driver.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Toby Churchill SL50 Series to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Bosch SHC to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Phytec AM335x phyCORE SOM, phyBOARD-WEGA, phyBOARD-REGOR,
PCM-953 to use new cpsw switch driver. Those boards have or 2 Ext. port
wired and configured in dual_mac mode by default, or only 1 Ext. port.
Cc: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Gumstix Pepper to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch EETS,PDU001 to use new cpsw switch driver. Those boards have or
2 Ext. port wired and configured in dual_mac mode by default, or only 1
Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Octavo Systems OSD3358-SM-RED to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch MYIR MYC-AM335X/MYD-AM335X to use new cpsw switch driver. Those
boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Cc: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Moxa am335x-moxa-uc-210x/8100 to use new cpsw switch driver.
Those boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Cc: Johnson Chen <johnsonch.chen@moxa.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch NovaTech OrionLXm to use new cpsw switch driver. Those boards
have or 2 Ext. port wired and configured in dual_mac mode by default, or
only 1 Ext. port
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch am335x-igep0033 to use new cpsw switch driver. Those boards have
or 2 Ext. port wired and configured in dual_mac mode by default, or only 1
Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch CompuLab CM-T335 to use new cpsw switch driver. Those boards
have or 2 Ext. port wired and configured in dual_mac mode by default, or
only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch AM335x Chiliboard to use new cpsw switch driver. Those boards
have or 2 Ext. port wired and configured in dual_mac mode by default, or
only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch Newflow AM335x NanoBone to use new cpsw switch driver. Those
boards have or 2 Ext. port wired and configured in dual_mac mode by
default, or only 1 Ext. port.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The dual_mac mode has been preserved the same way between legacy and new
driver, and one port devices works the same as 1 dual_mac port - it's safe
to switch drivers.
So, switch OnRISC Baltos and NetCom/Cam boards to use new cpsw switch
driver. Those boards have or 2 Ext. port wired and configured in dual_mac
mode by default, or only 1 Ext. port.
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Christina Quast <cquast@hanoverdisplays.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Build failure in drivers/net/wwan/mhi_wwan_mbim.c:
add missing parameter (0, assuming we don't want buffer pre-alloc).
Conflict in drivers/net/dsa/sja1105/sja1105_main.c between:
589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
0fac6aa098ed ("net: dsa: sja1105: delete the best_effort_vlan_filtering mode")
Follow the instructions from the commit message of the former commit
- removed the if conditions. When looking at commit 589918df9322 ("net:
dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
note that the mask_iotag fields get removed by the following patch.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
- fix zstd build for -march=z900 (undefined reference to __clzdi2)
- add missing .got.plts to vdso linker scripts to fix kpatch build
errors
- update defconfigs
* tag 's390-5.14-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: update defconfigs
s390/boot: fix zstd build for -march=z900
s390/vdso: add .got.plt in vdso linker script
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Pull kvm fixes from Paolo Bonzini:
"Mostly bugfixes; plus, support for XMM arguments to Hyper-V hypercalls
now obeys KVM_CAP_HYPERV_ENFORCE_CPUID.
Both the XMM arguments feature and KVM_CAP_HYPERV_ENFORCE_CPUID are
new in 5.14, and each did not know of the other"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/mmu: Fix per-cpu counter corruption on 32-bit builds
KVM: selftests: fix hyperv_clock test
KVM: SVM: improve the code readability for ASID management
KVM: SVM: Fix off-by-one indexing when nullifying last used SEV VMCB
KVM: Do not leak memory for duplicate debugfs directories
KVM: selftests: Test access to XMM fast hypercalls
KVM: x86: hyper-v: Check if guest is allowed to use XMM registers for hypercall input
KVM: x86: Introduce trace_kvm_hv_hypercall_done()
KVM: x86: hyper-v: Check access to hypercall before reading XMM registers
KVM: x86: accept userspace interrupt only if no event is injected
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mediatek,gce-events is read by mutex node.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20210622030741.2120393-1-hsinyi@chromium.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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