Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 242 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
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+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/qcom,ipa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm IP Accelerator (IPA)
+
+maintainers:
+  - Alex Elder <elder@kernel.org>
+
+description:
+  This binding describes the Qualcomm IPA.  The IPA is capable of offloading
+  certain network processing tasks (e.g. filtering, routing, and NAT) from
+  the main processor.
+
+  The IPA sits between multiple independent "execution environments,"
+  including the Application Processor (AP) and the modem.  The IPA presents
+  a Generic Software Interface (GSI) to each execution environment.
+  The GSI is an integral part of the IPA, but it is logically isolated
+  and has a distinct interrupt and a separately-defined address space.
+
+  See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt.  See
+  iommu/iommu.txt and iommu/arm,smmu.yaml for more information about SMMU
+  bindings.
+
+
+  - |
+    --------             ---------
+    |      |             |       |
+    |  AP  +<---.   .----+ Modem |
+    |      +--. |   | .->+       |
+    |      |  | |   | |  |       |
+    --------  | |   | |  ---------
+              v |   v |
+            --+-+---+-+--
+            |    GSI    |
+            |-----------|
+            |           |
+            |    IPA    |
+            |           |
+            -------------
+
+properties:
+  compatible:
+    enum:
+      - qcom,msm8998-ipa
+      - qcom,sc7180-ipa
+      - qcom,sc7280-ipa
+      - qcom,sdm845-ipa
+      - qcom,sdx55-ipa
+      - qcom,sm8350-ipa
+
+  reg:
+    items:
+      - description: IPA registers
+      - description: IPA shared memory
+      - description: GSI registers
+
+  reg-names:
+    items:
+      - const: ipa-reg
+      - const: ipa-shared
+      - const: gsi
+
+  iommus:
+    minItems: 1
+    maxItems: 2
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: core
+
+  interrupts:
+    items:
+      - description: IPA interrupt (hardware IRQ)
+      - description: GSI interrupt (hardware IRQ)
+      - description: Modem clock query interrupt (smp2p interrupt)
+      - description: Modem setup ready interrupt (smp2p interrupt)
+
+  interrupt-names:
+    items:
+      - const: ipa
+      - const: gsi
+      - const: ipa-clock-query
+      - const: ipa-setup-ready
+
+  interconnects:
+    oneOf:
+      - items:
+          - description: Path leading to system memory
+          - description: Path between the AP and IPA config space
+      - items:
+          - description: Path leading to system memory
+          - description: Path leading to internal memory
+          - description: Path between the AP and IPA config space
+
+  interconnect-names:
+    oneOf:
+      - items:
+          - const: memory
+          - const: config
+      - items:
+          - const: memory
+          - const: imem
+          - const: config
+
+  qcom,qmp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: phandle to the AOSS side-channel message RAM
+
+  qcom,smem-states:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: State bits used in by the AP to signal the modem.
+    items:
+      - description: Whether the "ipa-clock-enabled" state bit is valid
+      - description: Whether the IPA clock is enabled (if valid)
+
+  qcom,smem-state-names:
+    description: The names of the state bits used for SMP2P output
+    items:
+      - const: ipa-clock-enabled-valid
+      - const: ipa-clock-enabled
+
+  modem-init:
+    type: boolean
+    description:
+      If present, it indicates that the modem is responsible for
+      performing early IPA initialization, including loading and
+      validating firwmare used by the GSI.
+
+  memory-region:
+    maxItems: 1
+    description:
+      If present, a phandle for a reserved memory area that holds
+      the firmware passed to Trust Zone for authentication.  Required
+      when Trust Zone (not the modem) performs early initialization.
+
+  firmware-name:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      If present, name (or relative path) of the file within the
+      firmware search path containing the firmware image used when
+      initializing IPA hardware.  Optional, and only used when
+      Trust Zone performs early initialization.
+
+required:
+  - compatible
+  - iommus
+  - reg
+  - clocks
+  - interrupts
+  - interconnects
+  - qcom,smem-states
+
+# Either modem-init is present, or memory-region must be present.
+oneOf:
+  - required:
+      - modem-init
+  - required:
+      - memory-region
+
+# If memory-region is present, firmware-name may optionally be present.
+# But if modem-init is present, firmware-name must not be present.
+if:
+  required:
+    - modem-init
+then:
+  not:
+    required:
+      - firmware-name
+
+additionalProperties: false
+
+examples:
+  - |
+        #include <dt-bindings/interrupt-controller/arm-gic.h>
+        #include <dt-bindings/clock/qcom,rpmh.h>
+        #include <dt-bindings/interconnect/qcom,sdm845.h>
+
+        smp2p-mpss {
+                compatible = "qcom,smp2p";
+                interrupts = <GIC_SPI 576 IRQ_TYPE_EDGE_RISING>;
+                mboxes = <&apss_shared 6>;
+                qcom,smem = <94>, <432>;
+                qcom,local-pid = <0>;
+                qcom,remote-pid = <5>;
+
+                ipa_smp2p_out: ipa-ap-to-modem {
+                        qcom,entry-name = "ipa";
+                        #qcom,smem-state-cells = <1>;
+                };
+
+                ipa_smp2p_in: ipa-modem-to-ap {
+                        qcom,entry-name = "ipa";
+                        interrupt-controller;
+                        #interrupt-cells = <2>;
+                };
+        };
+
+        ipa@1e40000 {
+                compatible = "qcom,sdm845-ipa";
+
+                modem-init;
+
+                iommus = <&apps_smmu 0x720 0x3>;
+                reg = <0x1e40000 0x7000>,
+                        <0x1e47000 0x2000>,
+                        <0x1e04000 0x2c000>;
+                reg-names = "ipa-reg",
+                            "ipa-shared",
+                            "gsi";
+
+                interrupts-extended = <&intc GIC_SPI 311 IRQ_TYPE_EDGE_RISING>,
+                                      <&intc GIC_SPI 432 IRQ_TYPE_LEVEL_HIGH>,
+                                      <&ipa_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+                                      <&ipa_smp2p_in 1 IRQ_TYPE_EDGE_RISING>;
+                interrupt-names = "ipa",
+                                  "gsi",
+                                  "ipa-clock-query",
+                                  "ipa-setup-ready";
+
+                clocks = <&rpmhcc RPMH_IPA_CLK>;
+                clock-names = "core";
+
+                interconnects =
+                        <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_EBI1>,
+                        <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_IMEM>,
+                        <&rsc_hlos MASTER_APPSS_PROC &rsc_hlos SLAVE_IPA_CFG>;
+                interconnect-names = "memory",
+                                     "imem",
+                                     "config";
+
+                qcom,qmp = <&aoss_qmp>;
+
+                qcom,smem-states = <&ipa_smp2p_out 0>,
+                                   <&ipa_smp2p_out 1>;
+                qcom,smem-state-names = "ipa-clock-enabled-valid",
+                                        "ipa-clock-enabled";
+        };