Merge tag 'irqchip-6.3' of git://git.kernel.org/pub/scm/linux/kernel/…

…git/maz/arm-platforms into irq/core Pull irqchip updates from Marc Zyngier: - New and improved irqdomain locking, closing a number of races that became apparent now that we are able to probe drivers in parallel - A bunch of OF node refcounting bugs have been fixed - We now have a new IPI mux, lifted from the Apple AIC code and made common. It is expected that riscv will eventually benefit from it - Two small fixes for the Broadcom L2 drivers - Various cleanups and minor bug fixes Link: https://lore.kernel.org/r/[email protected]
niw · Feb 18, 2023 · 6f3ee0e · 6f3ee0e
2 parents 188a569 + a83bf17
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diff --git a/.mailmap b/.mailmap
@@ -422,6 +422,7 @@ Tony Luck <[email protected]>
 TripleX Chung <[email protected]> <[email protected]>
 TripleX Chung <[email protected]> <[email protected]>
 Tsuneo Yoshioka <[email protected]>
+Tudor Ambarus <[email protected]> <[email protected]>
 Tycho Andersen <[email protected]> <[email protected]>
 Tzung-Bi Shih <[email protected]> <[email protected]>
 Uwe Kleine-König <[email protected]>

diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
@@ -120,6 +120,8 @@ stable kernels.
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A710     | #2224489        | ARM64_ERRATUM_2224489       |
 +----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Cortex-A715     | #2645198        | ARM64_ERRATUM_2645198       |
++----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-X2       | #2119858        | ARM64_ERRATUM_2119858       |
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-X2       | #2224489        | ARM64_ERRATUM_2224489       |

diff --git a/Documentation/conf.py b/Documentation/conf.py
@@ -31,6 +31,12 @@ def have_command(cmd):
 # Get Sphinx version
 major, minor, patch = sphinx.version_info[:3]
 
+#
+# Warn about older versions that we don't want to support for much
+# longer.
+#
+if (major < 2) or (major == 2 and minor < 4):
+    print('WARNING: support for Sphinx < 2.4 will be removed soon.')
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -339,7 +345,11 @@ def get_cline_version():
 
 # Custom sidebar templates, maps document names to template names.
 # Note that the RTD theme ignores this
-html_sidebars = { '**': ["about.html", 'searchbox.html', 'localtoc.html', 'sourcelink.html']}
+html_sidebars = { '**': ['searchbox.html', 'localtoc.html', 'sourcelink.html']}
+
+# about.html is available for alabaster theme. Add it at the front.
+if html_theme == 'alabaster':
+    html_sidebars['**'].insert(0, 'about.html')
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'TheLinuxKerneldoc'

diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -54,6 +54,17 @@ properties:
       - const: xo
       - const: alternate
 
+  interrupts:
+    minItems: 1
+    maxItems: 3
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: dcvsh-irq-0
+      - const: dcvsh-irq-1
+      - const: dcvsh-irq-2
+
   '#freq-domain-cells':
     const: 1
 

diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-aes.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Atmel Advanced Encryption Standard (AES) HW cryptographic accelerator
 
 maintainers:
-  - Tudor Ambarus <tudor.ambarus@microchip.com>
+  - Tudor Ambarus <tudor.ambarus@linaro.org>
 
 properties:
   compatible:

diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-sha.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Atmel Secure Hash Algorithm (SHA) HW cryptographic accelerator
 
 maintainers:
-  - Tudor Ambarus <tudor.ambarus@microchip.com>
+  - Tudor Ambarus <tudor.ambarus@linaro.org>
 
 properties:
   compatible:

diff --git a/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml b/Documentation/devicetree/bindings/crypto/atmel,at91sam9g46-tdes.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Atmel Triple Data Encryption Standard (TDES) HW cryptographic accelerator
 
 maintainers:
-  - Tudor Ambarus <tudor.ambarus@microchip.com>
+  - Tudor Ambarus <tudor.ambarus@linaro.org>
 
 properties:
   compatible:

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -32,7 +32,7 @@ properties:
       - description: Display byte clock
       - description: Display byte interface clock
       - description: Display pixel clock
-      - description: Display escape clock
+      - description: Display core clock
       - description: Display AHB clock
       - description: Display AXI clock
 
@@ -137,8 +137,6 @@ required:
   - phys
   - assigned-clocks
   - assigned-clock-parents
-  - power-domains
-  - operating-points-v2
   - ports
 
 additionalProperties: false

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
@@ -69,7 +69,6 @@ required:
   - compatible
   - reg
   - reg-names
-  - vdds-supply
 
 unevaluatedProperties: false
 

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
@@ -39,7 +39,6 @@ required:
   - compatible
   - reg
   - reg-names
-  - vcca-supply
 
 unevaluatedProperties: false
 

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
@@ -34,6 +34,10 @@ properties:
   vddio-supply:
     description: Phandle to vdd-io regulator device node.
 
+  qcom,dsi-phy-regulator-ldo-mode:
+    type: boolean
+    description: Indicates if the LDO mode PHY regulator is wanted.
+
 required:
   - compatible
   - reg

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml
@@ -72,7 +72,7 @@ examples:
     #include <dt-bindings/interconnect/qcom,qcm2290.h>
     #include <dt-bindings/power/qcom-rpmpd.h>
 
-    mdss@5e00000 {
+    display-subsystem@5e00000 {
         #address-cells = <1>;
         #size-cells = <1>;
         compatible = "qcom,qcm2290-mdss";

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-mdss.yaml
@@ -62,7 +62,7 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/qcom-rpmpd.h>
 
-    mdss@5e00000 {
+    display-subsystem@5e00000 {
         #address-cells = <1>;
         #size-cells = <1>;
         compatible = "qcom,sm6115-mdss";

diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
@@ -16,6 +16,7 @@ properties:
   compatible:
     enum:
       - mediatek,mt8186-mt6366-rt1019-rt5682s-sound
+      - mediatek,mt8186-mt6366-rt5682s-max98360-sound
 
   mediatek,platform:
     $ref: "/schemas/types.yaml#/definitions/phandle"

diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml
@@ -30,7 +30,9 @@ properties:
     const: 0
 
   clocks:
-    maxItems: 5
+    oneOf:
+      - maxItems: 3
+      - maxItems: 5
 
   clock-names:
     oneOf:

diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml
@@ -9,9 +9,6 @@ title: LPASS(Low Power Audio Subsystem) VA Macro audio codec
 maintainers:
   - Srinivas Kandagatla <[email protected]>
 
-allOf:
-  - $ref: dai-common.yaml#
-
 properties:
   compatible:
     enum:
@@ -30,15 +27,12 @@ properties:
     const: 0
 
   clocks:
-    maxItems: 5
+    minItems: 5
+    maxItems: 6
 
   clock-names:
-    items:
-      - const: mclk
-      - const: npl
-      - const: macro
-      - const: dcodec
-      - const: fsgen
+    minItems: 5
+    maxItems: 6
 
   clock-output-names:
     maxItems: 1
@@ -55,10 +49,51 @@ required:
   - reg
   - "#sound-dai-cells"
 
+allOf:
+  - $ref: dai-common.yaml#
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,sc7280-lpass-wsa-macro
+            - qcom,sm8450-lpass-wsa-macro
+            - qcom,sc8280xp-lpass-wsa-macro
+    then:
+      properties:
+        clocks:
+          maxItems: 5
+        clock-names:
+          items:
+            - const: mclk
+            - const: npl
+            - const: macro
+            - const: dcodec
+            - const: fsgen
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,sm8250-lpass-wsa-macro
+    then:
+      properties:
+        clocks:
+          minItems: 6
+        clock-names:
+          items:
+            - const: mclk
+            - const: npl
+            - const: macro
+            - const: dcodec
+            - const: va
+            - const: fsgen
+
 unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/clock/qcom,sm8250-lpass-aoncc.h>
     #include <dt-bindings/sound/qcom,q6afe.h>
     codec@3240000 {
       compatible = "qcom,sm8250-lpass-wsa-macro";
@@ -69,7 +104,8 @@ examples:
                <&audiocc 0>,
                <&q6afecc LPASS_HW_MACRO_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
                <&q6afecc LPASS_HW_DCODEC_VOTE LPASS_CLK_ATTRIBUTE_COUPLE_NO>,
+               <&aoncc LPASS_CDC_VA_MCLK>,
                <&vamacro>;
-      clock-names = "mclk", "npl", "macro", "dcodec", "fsgen";
+      clock-names = "mclk", "npl", "macro", "dcodec", "va", "fsgen";
       clock-output-names = "mclk";
     };
diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Atmel SPI device
 
 maintainers:
-  - Tudor Ambarus <tudor.ambarus@microchip.com>
+  - Tudor Ambarus <tudor.ambarus@linaro.org>
 
 allOf:
   - $ref: spi-controller.yaml#

diff --git a/Documentation/devicetree/bindings/spi/atmel,quadspi.yaml b/Documentation/devicetree/bindings/spi/atmel,quadspi.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Atmel Quad Serial Peripheral Interface (QSPI)
 
 maintainers:
-  - Tudor Ambarus <tudor.ambarus@microchip.com>
+  - Tudor Ambarus <tudor.ambarus@linaro.org>
 
 allOf:
   - $ref: spi-controller.yaml#

diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -44,9 +44,9 @@ properties:
     description:
       Maximum SPI clocking speed of the device in Hz.
 
-  spi-cs-setup-ns:
+  spi-cs-setup-delay-ns:
     description:
-      Delay in nanosecods to be introduced by the controller after CS is
+      Delay in nanoseconds to be introduced by the controller after CS is
       asserted.
 
   spi-rx-bus-width:

diff --git a/Documentation/networking/rxrpc.rst b/Documentation/networking/rxrpc.rst
@@ -880,8 +880,8 @@ The kernel interface functions are as follows:
 
      notify_end_rx can be NULL or it can be used to specify a function to be
      called when the call changes state to end the Tx phase.  This function is
-     called with the call-state spinlock held to prevent any reply or final ACK
-     from being delivered first.
+     called with a spinlock held to prevent the last DATA packet from being
+     transmitted until the function returns.
 
  (#) Receive data from a call::
 

diff --git a/Documentation/sphinx/load_config.py b/Documentation/sphinx/load_config.py
@@ -3,7 +3,7 @@
 
 import os
 import sys
-from sphinx.util.pycompat import execfile_
+from sphinx.util.osutil import fs_encoding
 
 # ------------------------------------------------------------------------------
 def loadConfig(namespace):
@@ -48,7 +48,9 @@ def loadConfig(namespace):
             sys.stdout.write("load additional sphinx-config: %s\n" % config_file)
             config = namespace.copy()
             config['__file__'] = config_file
-            execfile_(config_file, config)
+            with open(config_file, 'rb') as f:
+                code = compile(f.read(), fs_encoding, 'exec')
+                exec(code, config)
             del config['__file__']
             namespace.update(config)
         else:

diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
@@ -1354,6 +1354,14 @@ the memory region are automatically reflected into the guest.  For example, an
 mmap() that affects the region will be made visible immediately.  Another
 example is madvise(MADV_DROP).
 
+Note: On arm64, a write generated by the page-table walker (to update
+the Access and Dirty flags, for example) never results in a
+KVM_EXIT_MMIO exit when the slot has the KVM_MEM_READONLY flag. This
+is because KVM cannot provide the data that would be written by the
+page-table walker, making it impossible to emulate the access.
+Instead, an abort (data abort if the cause of the page-table update
+was a load or a store, instruction abort if it was an instruction
+fetch) is injected in the guest.
 
 4.36 KVM_SET_TSS_ADDR
 ---------------------
@@ -8310,6 +8318,20 @@ CPU[EAX=1]:ECX[24] (TSC_DEADLINE) is not reported by ``KVM_GET_SUPPORTED_CPUID``
 It can be enabled if ``KVM_CAP_TSC_DEADLINE_TIMER`` is present and the kernel
 has enabled in-kernel emulation of the local APIC.
 
+CPU topology
+~~~~~~~~~~~~
+
+Several CPUID values include topology information for the host CPU:
+0x0b and 0x1f for Intel systems, 0x8000001e for AMD systems.  Different
+versions of KVM return different values for this information and userspace
+should not rely on it.  Currently they return all zeroes.
+
+If userspace wishes to set up a guest topology, it should be careful that
+the values of these three leaves differ for each CPU.  In particular,
+the APIC ID is found in EDX for all subleaves of 0x0b and 0x1f, and in EAX
+for 0x8000001e; the latter also encodes the core id and node id in bits
+7:0 of EBX and ECX respectively.
+
 Obsolete ioctls and capabilities
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

diff --git a/Documentation/virt/kvm/locking.rst b/Documentation/virt/kvm/locking.rst
@@ -24,21 +24,22 @@ The acquisition orders for mutexes are as follows:
 
 For SRCU:
 
-- ``synchronize_srcu(&kvm->srcu)`` is called _inside_
-  the kvm->slots_lock critical section, therefore kvm->slots_lock
-  cannot be taken inside a kvm->srcu read-side critical section.
-  Instead, kvm->slots_arch_lock is released before the call
-  to ``synchronize_srcu()`` and _can_ be taken inside a
-  kvm->srcu read-side critical section.
-
-- kvm->lock is taken inside kvm->srcu, therefore
-  ``synchronize_srcu(&kvm->srcu)`` cannot be called inside
-  a kvm->lock critical section.  If you cannot delay the
-  call until after kvm->lock is released, use ``call_srcu``.
+- ``synchronize_srcu(&kvm->srcu)`` is called inside critical sections
+  for kvm->lock, vcpu->mutex and kvm->slots_lock.  These locks _cannot_
+  be taken inside a kvm->srcu read-side critical section; that is, the
+  following is broken::
+
+      srcu_read_lock(&kvm->srcu);
+      mutex_lock(&kvm->slots_lock);
+
+- kvm->slots_arch_lock instead is released before the call to
+  ``synchronize_srcu()``.  It _can_ therefore be taken inside a
+  kvm->srcu read-side critical section, for example while processing
+  a vmexit.
 
 On x86:
 
-- vcpu->mutex is taken outside kvm->arch.hyperv.hv_lock
+- vcpu->mutex is taken outside kvm->arch.hyperv.hv_lock and kvm->arch.xen.xen_lock
 
 - kvm->arch.mmu_lock is an rwlock.  kvm->arch.tdp_mmu_pages_lock and
   kvm->arch.mmu_unsync_pages_lock are taken inside kvm->arch.mmu_lock, and