Automatic merge of 'master' into merge-test (2024-03-24 13:41)

linuxppc · Mar 24, 2024 · 08aa474 · 08aa474
2 parents 4db4221 + 7029324
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diff --git a/Documentation/arch/riscv/vm-layout.rst b/Documentation/arch/riscv/vm-layout.rst
@@ -144,14 +144,8 @@ passing 0 into the hint address parameter of mmap. On CPUs with an address space
 smaller than sv48, the CPU maximum supported address space will be the default.
 
 Software can "opt-in" to receiving VAs from another VA space by providing
-a hint address to mmap. A hint address passed to mmap will cause the largest
-address space that fits entirely into the hint to be used, unless there is no
-space left in the address space. If there is no space available in the requested
-address space, an address in the next smallest available address space will be
-returned.
-
-For example, in order to obtain 48-bit VA space, a hint address greater than
-:code:`1 << 47` must be provided. Note that this is 47 due to sv48 userspace
-ending at :code:`1 << 47` and the addresses beyond this are reserved for the
-kernel. Similarly, to obtain 57-bit VA space addresses, a hint address greater
-than or equal to :code:`1 << 56` must be provided.
+a hint address to mmap. When a hint address is passed to mmap, the returned
+address will never use more bits than the hint address. For example, if a hint
+address of `1 << 40` is passed to mmap, a valid returned address will never use
+bits 41 through 63. If no mappable addresses are available in that range, mmap
+will return `MAP_FAILED`.
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
@@ -270,7 +270,7 @@ examples:
 
                 port {
                     ov7251_ep: endpoint {
-                        data-lanes = <0 1>;
+                        data-lanes = <0>;
                         link-frequencies = /bits/ 64 <240000000 319200000>;
                         remote-endpoint = <&csiphy3_ep>;
                     };

diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
@@ -14,31 +14,30 @@ description: The Nomadik I2C host controller began its life in the ST
 maintainers:
   - Linus Walleij <[email protected]>
 
-allOf:
-  - $ref: /schemas/i2c/i2c-controller.yaml#
-
 # Need a custom select here or 'arm,primecell' will match on lots of nodes
 select:
   properties:
     compatible:
       contains:
         enum:
           - st,nomadik-i2c
+          - mobileye,eyeq5-i2c
   required:
     - compatible
 
 properties:
   compatible:
     oneOf:
-      # The variant found in STn8815
       - items:
           - const: st,nomadik-i2c
           - const: arm,primecell
-      # The variant found in DB8500
       - items:
           - const: stericsson,db8500-i2c
           - const: st,nomadik-i2c
           - const: arm,primecell
+      - items:
+          - const: mobileye,eyeq5-i2c
+          - const: arm,primecell
 
   reg:
     maxItems: 1
@@ -55,7 +54,7 @@ properties:
       - items:
           - const: mclk
           - const: apb_pclk
-      # Clock name in DB8500
+      # Clock name in DB8500 or EyeQ5
       - items:
           - const: i2cclk
           - const: apb_pclk
@@ -70,6 +69,16 @@ properties:
     minimum: 1
     maximum: 400000
 
+  mobileye,olb:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: Phandle to OLB system controller node.
+          - description: Platform-wide controller ID (integer starting from zero).
+    description:
+      The phandle pointing to OLB system controller node, with the I2C
+      controller index.
+
 required:
   - compatible
   - reg
@@ -79,6 +88,20 @@ required:
 
 unevaluatedProperties: false
 
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mobileye,eyeq5-i2c
+    then:
+      required:
+        - mobileye,olb
+    else:
+      properties:
+        mobileye,olb: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/irq.h>
@@ -111,5 +134,19 @@ examples:
       clocks = <&i2c0clk>, <&pclki2c0>;
       clock-names = "mclk", "apb_pclk";
     };
+  - |
+    #include <dt-bindings/interrupt-controller/mips-gic.h>
+    i2c@300000 {
+      compatible = "mobileye,eyeq5-i2c", "arm,primecell";
+      reg = <0x300000 0x1000>;
+      interrupt-parent = <&gic>;
+      interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>;
+      clock-frequency = <400000>;
+      #address-cells = <1>;
+      #size-cells = <0>;
+      clocks = <&i2c_ser_clk>, <&i2c_clk>;
+      clock-names = "i2cclk", "apb_pclk";
+      mobileye,olb = <&olb 0>;
+    };
 
 ...
diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -110,7 +110,11 @@ properties:
         const: 1
 
       compatible:
-        const: riscv,cpu-intc
+        oneOf:
+          - items:
+              - const: andestech,cpu-intc
+              - const: riscv,cpu-intc
+          - const: riscv,cpu-intc
 
       interrupt-controller: true
 

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -477,5 +477,12 @@ properties:
             latency, as ratified in commit 56ed795 ("Update
             riscv-crypto-spec-vector.adoc") of riscv-crypto.
 
+        - const: xandespmu
+          description:
+            The Andes Technology performance monitor extension for counter overflow
+            and privilege mode filtering. For more details, see Counter Related
+            Registers in the AX45MP datasheet.
+            https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev.-5.0.0-Datasheet.pdf
+
 additionalProperties: true
 ...
diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
@@ -185,11 +185,12 @@ properties:
 
       gpio-ranges:
         items:
-          - description: A phandle to the CODEC pinctrl node
-            minimum: 0
-          - const: 0
-          - const: 0
-          - const: 3
+          - items:
+              - description: A phandle to the CODEC pinctrl node
+                minimum: 0
+              - const: 0
+              - const: 0
+              - const: 3
 
     patternProperties:
       "-state$":

diff --git a/Documentation/devicetree/bindings/timer/cdns,ttc.yaml b/Documentation/devicetree/bindings/timer/cdns,ttc.yaml
@@ -32,12 +32,23 @@ properties:
     description: |
       Bit width of the timer, necessary if not 16.
 
+  "#pwm-cells":
+    const: 3
+
 required:
   - compatible
   - reg
-  - interrupts
   - clocks
 
+allOf:
+  - if:
+      not:
+        required:
+          - "#pwm-cells"
+    then:
+      required:
+        - interrupts
+
 additionalProperties: false
 
 examples:
@@ -50,3 +61,12 @@ examples:
         clocks = <&cpu_clk 3>;
         timer-width = <32>;
     };
+
+  - |
+    pwm: pwm@f8002000 {
+        compatible = "cdns,ttc";
+        reg = <0xf8002000 0x1000>;
+        clocks = <&cpu_clk 3>;
+        timer-width = <32>;
+        #pwm-cells = <3>;
+    };
diff --git a/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml
@@ -18,7 +18,9 @@ description: |
 
 properties:
   compatible:
-    const: nxp,sysctr-timer
+    enum:
+      - nxp,imx95-sysctr-timer
+      - nxp,sysctr-timer
 
   reg:
     maxItems: 1

diff --git a/Documentation/devicetree/bindings/timer/ralink,cevt-systick.yaml b/Documentation/devicetree/bindings/timer/ralink,cevt-systick.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/ralink,cevt-systick.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: System tick counter present in Ralink family SoCs
+
+maintainers:
+  - Sergio Paracuellos <[email protected]>
+
+properties:
+  compatible:
+    const: ralink,cevt-systick
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    systick@d00 {
+        compatible = "ralink,cevt-systick";
+        reg = <0xd00 0x10>;
+
+        interrupt-parent = <&cpuintc>;
+        interrupts = <7>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/timer/renesas,ostm.yaml b/Documentation/devicetree/bindings/timer/renesas,ostm.yaml
@@ -23,7 +23,7 @@ properties:
       - enum:
           - renesas,r7s72100-ostm  # RZ/A1H
           - renesas,r7s9210-ostm   # RZ/A2M
-          - renesas,r9a07g043-ostm # RZ/G2UL
+          - renesas,r9a07g043-ostm # RZ/G2UL and RZ/Five
           - renesas,r9a07g044-ostm # RZ/G2{L,LC}
           - renesas,r9a07g054-ostm # RZ/V2L
       - const: renesas,ostm        # Generic

diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
@@ -46,7 +46,19 @@ properties:
 
   interrupts:
     minItems: 2
-    maxItems: 3
+    items:
+      - description: Underflow interrupt, channel 0
+      - description: Underflow interrupt, channel 1
+      - description: Underflow interrupt, channel 2
+      - description: Input capture interrupt, channel 2
+
+  interrupt-names:
+    minItems: 2
+    items:
+      - const: tuni0
+      - const: tuni1
+      - const: tuni2
+      - const: ticpi2
 
   clocks:
     maxItems: 1
@@ -100,7 +112,9 @@ examples:
             reg = <0xffd80000 0x30>;
             interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
                          <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+                         <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "tuni0", "tuni1", "tuni2", "ticpi2";
             clocks = <&mstp0_clks R8A7779_CLK_TMU0>;
             clock-names = "fck";
             power-domains = <&sysc R8A7779_PD_ALWAYS_ON>;

diff --git a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml
@@ -26,6 +26,7 @@ properties:
       - items:
           - enum:
               - axis,artpec8-mct
+              - google,gs101-mct
               - samsung,exynos3250-mct
               - samsung,exynos5250-mct
               - samsung,exynos5260-mct
@@ -127,6 +128,7 @@ allOf:
           contains:
             enum:
               - axis,artpec8-mct
+              - google,gs101-mct
               - samsung,exynos5260-mct
               - samsung,exynos5420-mct
               - samsung,exynos5433-mct

diff --git a/Documentation/features/sched/membarrier-sync-core/arch-support.txt b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
@@ -10,6 +10,22 @@
 # Rely on implicit context synchronization as a result of exception return
 # when returning from IPI handler, and when returning to user-space.
 #
+# * riscv
+#
+# riscv uses xRET as return from interrupt and to return to user-space.
+#
+# Given that xRET is not core serializing, we rely on FENCE.I for providing
+# core serialization:
+#
+#  - by calling sync_core_before_usermode() on return from interrupt (cf.
+#    ipi_sync_core()),
+#
+#  - via switch_mm() and sync_core_before_usermode() (respectively, for
+#    uthread->uthread and kthread->uthread transitions) before returning
+#    to user-space.
+#
+#  The serialization in switch_mm() is activated by prepare_sync_core_cmd().
+#
 # * x86
 #
 # x86-32 uses IRET as return from interrupt, which takes care of the IPI.
@@ -43,7 +59,7 @@
     |    openrisc: | TODO |
     |      parisc: | TODO |
     |     powerpc: |  ok  |
-    |       riscv: | TODO |
+    |       riscv: |  ok  |
     |        s390: |  ok  |
     |          sh: | TODO |
     |       sparc: | TODO |

diff --git a/Documentation/scheduler/index.rst b/Documentation/scheduler/index.rst
@@ -7,6 +7,7 @@ Scheduler
 
 
     completion
+    membarrier
     sched-arch
     sched-bwc
     sched-deadline