pmp v1 implementation

Documentation/devicetree/bindings/power/apple,pmp-v1-report-entry.yaml

@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/apple,pmp-v1-report-entry.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple PMPv1 Report Entry Power Domains
+
+maintainers:
+  - Didi Nuk <dev@ydnuk.com>
+
+description:
+  Apple PMPv1 report-entry nodes expose individual PMP-managed resources as
+  generic power domains. The PMP driver requires a report-entry node for each
+  SoC-specific PMP-managed resource.
+
+properties:
+  compatible:
+    const: apple,t8103-pmp-v1-report-entry
+
+  reg:
+    maxItems: 1
+
+  "#power-domain-cells":
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+  label:
+    description:
+      Specifies the name of the SoC report entry domain. This is used to
+      name the report entry domains.
+
+  apple,always-on:
+    description:
+      Forces this power domain to always be powered up.
+    type: boolean
+
+required:
+  - compatible
+  - reg
+  - label
+  - "#power-domain-cells"
+  - power-domains
+
+additionalProperties: false

Documentation/devicetree/bindings/power/apple,pmp-v1.yaml

@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/apple,pmp-v1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple PMPv1 Power Domains
+
+maintainers:
+  - Didi Nuk <dev@ydnuk.com>
+
+description:
+  Apple PMPv1 power domains are controlled by the Apple Power Management
+  Processor (PMP).
+
+properties:
+  compatible:
+    const: apple,t8103-pmp-v1
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: pmp
+      - const: asc
+
+  mboxes:
+    maxItems: 1
+
+  mbox-names:
+    items:
+      - const: mbox
+
+  iommus:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  power-domains:
+    maxItems: 1
+
+  apple,init-ranges:
+    description:
+      List of PMP memory regions, represented as address and size pairs for
+      initializing PMP.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 2
+
+  apple,init-dva:
+    description:
+      List of device virtual address with count pairs for initializing PMP.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 2
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - mboxes
+  - mbox-names
+  - "#address-cells"
+  - "#size-cells"
+  - iommus
+  - apple,init-ranges
+  - apple,init-dva
+
+patternProperties:
+  "^report@[0-9a-f]+$":
+    $ref: apple,pmp-v1-report-entry.yaml#
+
+additionalProperties: false

arch/arm64/Kconfig.platforms

@@ -38,6 +38,7 @@ config ARCH_APPLE
 	select APPLE_AIC
 	select APPLE_PMGR_PWRSTATE if PM
 	select HAVE_SHARED_GPIOS
+        select APPLE_USE_PMP_V1 if PM
 	help
 	  This enables support for Apple's in-house ARM SoC family, such
 	  as the Apple M1.

arch/arm64/boot/dts/apple/t8103.dtsi

@@ -22,6 +22,9 @@
 
 	aliases {
 		gpu = &gpu;
+                #ifdef APPLE_USE_PMP_V1
+                pmp = &pmp;
+                #endif
 	};
 
 	cpus {
@@ -480,7 +483,11 @@
 				<0x2 0x4000000 0 0x1000000>;
 			reg-names = "asc", "sgx";
 			mboxes = <&agx_mbox>;
+                        #ifdef APPLE_USE_PMP_V1
+			power-domains = <&pmp_report_gfx>;
+                        #else
 			power-domains = <&ps_gfx>;
+                        #endif
 			memory-region = <&uat_ttbs>, <&uat_pagetables>, <&uat_handoff>,
 					<&gpu_hw_cal_a>, <&gpu_hw_cal_b>, <&gpu_globals>;
 			memory-region-names = "ttbs", "pagetables", "handoff",
@@ -553,7 +560,11 @@
 			reg = <0x2 0x28200000 0x0 0xc000>,
 			      <0x2 0x28400000 0x0 0x4000>;
 			reg-names = "be", "fe";
+                        #ifdef APPLE_USE_PMP_V1
+			power-domains = <&pmp_report_dispdfr>, <&ps_dispdfr_be>;
+                        #else
 			power-domains = <&ps_dispdfr_fe>, <&ps_dispdfr_be>;
+                        #endif
 			interrupt-parent = <&aic>;
 			interrupts = <AIC_IRQ 502 IRQ_TYPE_LEVEL_HIGH>,
 				     <AIC_IRQ 506 IRQ_TYPE_LEVEL_HIGH>;
@@ -613,7 +624,11 @@
 			#iommu-cells = <5>;
 			interrupt-parent = <&aic>;
 			interrupts = <AIC_IRQ 445 IRQ_TYPE_LEVEL_HIGH>;
+                        #ifdef APPLE_USE_PMP_V1
+			power-domains = <&pmp_report_disp0>;
+                        #else
 			power-domains = <&ps_disp0_cpu0>;
+                        #endif
 			status = "disabled";
 		};
 
@@ -697,7 +712,11 @@
 			#iommu-cells = <1>;
 			interrupt-parent = <&aic>;
 			interrupts = <AIC_IRQ 251 IRQ_TYPE_LEVEL_HIGH>;
+                        #ifdef APPLE_USE_PMP_V1
+			power-domains = <&pmp_report_isp_sys>;
+                        #else
 			power-domains = <&ps_isp_sys>;
+                        #endif
 
 			status = "disabled";
 		};
@@ -1059,6 +1078,163 @@
 			#apple,bw-doorbell-cells = <2>;
 		};
 
+                pmp_dart: iommu@23b300000 {
+			compatible = "apple,t8103-dart";
+			reg = <0x2 0x3b300000 0x0 0x4000>;
+			#iommu-cells = <1>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 515 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&ps_pmp>;
+		};
+
+		pmp_mbox: mbox@23bc08000 {
+			compatible = "apple,t8103-asc-mailbox", "apple,asc-mailbox-v4";
+			reg = <0x2 0x3bc08000 0x0 0x4000>;
+			interrupt-parent = <&aic>;
+
+			interrupts = <AIC_IRQ 511 IRQ_TYPE_LEVEL_HIGH>,
+				       <AIC_IRQ 512 IRQ_TYPE_LEVEL_HIGH>,
+				       <AIC_IRQ 513 IRQ_TYPE_LEVEL_HIGH>,
+				       <AIC_IRQ 514 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "send-empty", "send-not-empty",
+				"recv-empty", "recv-not-empty";
+			#mbox-cells = <0>;
+			power-domains = <&ps_pmp>, <&ps_pms_sram>;
+		};
+
+		pmp: pmp@23b850000 {
+			compatible = "apple,t8103-pmp-v1";
+			reg = <0x2 0x3b850000 0x0 0x200000>,
+			    <0x2 0x3bc00000 0x0 0x60000>;
+			reg-names = "pmp", "asc";
+			power-domains = <&ps_pmp>;
+
+			mboxes = <&pmp_mbox>;
+			mbox-names = "mbox";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			iommus = <&pmp_dart 0>;
+
+                        pmp_report_gfx: report@99 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-gfx";
+				reg = <99>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_gfx>;
+			};
+
+			pmp_report_ane_sys: report@104 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-ane-sys";
+				reg = <104>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_ane_sys>;
+				status = "disabled";
+			};
+
+			pmp_report_isp_sys: report@100 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-isp-sys";
+				reg = <0x64>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_isp_sys>;
+			};
+
+			pmp_report_disp0: report@84 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-disp0";
+				reg = <84>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_disp0_cpu0>;
+				apple,always-on;
+			};
+
+			pmp_report_dispext: report@85 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-dispext";
+				reg = <0x55>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_dispext_cpu0>;
+			};
+
+			pmp_report_venc_sys: report@101 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-venc-sys";
+				reg = <101>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_venc_sys>;
+				status = "disabled";
+			};
+
+			pmp_report_avd_sys: report@102 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-avd-sys";
+				reg = <102>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_avd_sys>;
+				status = "disabled";
+			};
+
+			pmp_report_msr: report@93 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-msr";
+				reg = <0x5d>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_msr>;
+				status = "disabled";
+			};
+
+			pmp_report_jpg: report@92 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-jpg";
+				reg = <0x5c>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_jpg>;
+				status = "disabled";
+			};
+
+			pmp_report_dispdfr: report@219 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-dispdfr";
+				reg = <219>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_dispdfr_fe>;
+			};
+
+			pmp_report_atc0_pcie: report@e {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-atc0_pcie";
+				reg = <0xe>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_atc0_pcie>;
+				status = "disabled";
+			};
+
+			pmp_report_atc1_pcie: report@62 {
+				compatible = "apple,t8103-pmp-v1-report-entry";
+				label = "pmp-atc1_pcie";
+				reg = <0x3e>;
+				#power-domain-cells = <0>;
+				power-domains = <&ps_atc1_pcie>;
+				status = "disabled";
+			};
+
+			// pmp_report_atc0_pcie_v: report@10 {
+			//         compatible = "apple,t8103-pmp-v1-report-entry";
+			//         label = "pmp-atc0_pcie-v";
+			//         #power-domain-cells = <0>;
+			//         power-domains = <&ps_atc0_pcie_v>;
+			// };
+
+			// pmp_report_atc1_pcie_v: report@11 {
+			//         compatible = "apple,t8103-pmp-v1-report-entry";
+			//         label = "pmp-atc1_pcie-v";
+			//         #power-domain-cells = <0>;
+			//         power-domains = <&ps_atc1_pcie_v>;
+			// };
+
+		};
+
 		cio_reset: reset-controller@23b784000 {
 			compatible = "apple,t8103-cio-reset";
 			reg = <0x2 0x3b784000 0x0 0x8000>;

drivers/pmdomain/apple/Kconfig

@@ -20,4 +20,10 @@ config APPLE_PMP_REPORT
 	depends on PM
 	select PM_GENERIC_DOMAINS
 
+config APPLE_PMP_V1_REPORT
+	bool
+	depends on OF
+	depends on PM
+	select PM_GENERIC_DOMAINS
+
 endif

drivers/pmdomain/apple/Makefile

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_APPLE_PMGR_PWRSTATE)	+= pmgr-pwrstate.o
 obj-$(CONFIG_APPLE_PMP_REPORT)	+= pmp-report.o
+obj-$(CONFIG_APPLE_PMP_V1_REPORT)		+= pmp_v1_report.o