Merge tag 'edac_for_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Stratix10 SDRAM support to altera_edac (Thor Thayer)

 - the usual misc fixes all over the place

[ Also, shared branch for socfpga_stratix10.dtsi file changes with the
  socfpga tree ]

* tag 'edac_for_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  EDAC, ghes: Make platform-based whitelisting x86-only
  EDAC, altera: Fix ARM64 build warning
  EDAC, skx: Fix skx_edac build error when ACPI_NFIT=m
  EDAC, ghes: Use BIT() macro
  EDAC, ghes: Add DDR4 and NVDIMM memory types
  EDAC, altera: Handle SDRAM Uncorrectable Errors on Stratix10
  Documentation: dt: edac: Move Altera SOCFPGA EDAC file
  EDAC, altera: Add support for Stratix10 SDRAM EDAC
  Documentation: dt: socfpga: Add Stratix10 ECC Manager binding
  EDAC, ghes: Remove unused argument to ghes_edac_report_mem_error()
  arm64: dts: stratix10: add sdram ecc
  EDAC, i7core: Fix spelling mistake: "redundacy" -> "redundancy"
  EDAC, ghes: Add a null pointer check in ghes_edac_unregister()
  ghes, EDAC: Fix ghes_edac registration
  arm64: dts: stratix10: Change pad skew values for EMAC0 PHY driver
  ARM: dts: consistently use 'atmel' as at24 manufacturer in cyclone5
  arm64: dts: stratix10: Add PL330 DMAC to Stratix10 dts
  arm64: dts: stratix10: enable i2c, add i2c periperals
  arm64: dts: stratix10: use clock bindings for the Stratix10 platform

Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt → Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt

@@ -231,3 +231,38 @@ Example:
 				     <48 IRQ_TYPE_LEVEL_HIGH>;
 		};
 	};
+
+Stratix10 SoCFPGA ECC Manager
+The Stratix10 SoC ECC Manager handles the IRQs for each peripheral
+in a shared register similar to the Arria10. However, ECC requires
+access to registers that can only be read from Secure Monitor with
+SMC calls. Therefore the device tree is slightly different.
+
+Required Properties:
+- compatible : Should be "altr,socfpga-s10-ecc-manager"
+- interrupts : Should be single bit error interrupt, then double bit error
+	interrupt.
+- interrupt-controller : boolean indicator that ECC Manager is an interrupt controller
+- #interrupt-cells : must be set to 2.
+
+Subcomponents:
+
+SDRAM ECC
+Required Properties:
+- compatible : Should be "altr,sdram-edac-s10"
+- interrupts : Should be single bit error interrupt, then double bit error
+	interrupt, in this order.
+
+Example:
+
+	eccmgr {
+		compatible = "altr,socfpga-s10-ecc-manager";
+		interrupts = <0 15 4>, <0 95 4>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		sdramedac {
+			compatible = "altr,sdram-edac-s10";
+			interrupts = <16 4>, <48 4>;
+		};
+	};

arch/arm/boot/dts/socfpga_cyclone5_vining_fpga.dts

@@ -161,7 +161,7 @@ temp: lm75@48 {
 	};
 
 	at24@50 {
-		compatible = "at24,24c01";
+		compatible = "atmel,24c01";
 		pagesize = <8>;
 		reg = <0x50>;
 	};
@@ -213,7 +213,7 @@ i2c@6 {	/* Backplane EEPROM */
 			#size-cells = <0>;
 			reg = <6>;
 			eeprom@51 {
-				compatible = "at,24c01";
+				compatible = "atmel,24c01";
 				pagesize = <8>;
 				reg = <0x51>;
 			};
@@ -224,7 +224,7 @@ i2c@7 {	/* Power board EEPROM */
 			#size-cells = <0>;
 			reg = <7>;
 			eeprom@51 {
-				compatible = "at,24c01";
+				compatible = "atmel,24c01";
 				pagesize = <8>;
 				reg = <0x51>;
 			};

arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi

@@ -17,6 +17,7 @@
 /dts-v1/;
 #include <dt-bindings/reset/altr,rst-mgr-s10.h>
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/clock/stratix10-clock.h>
 
 / {
 	compatible = "altr,socfpga-stratix10";
@@ -92,9 +93,32 @@ soc {
 		interrupt-parent = <&intc>;
 		ranges = <0 0 0 0xffffffff>;
 
-		clkmgr@ffd1000 {
-			compatible = "altr,clk-mgr";
+		clkmgr: clock-controller@ffd10000 {
+			compatible = "intel,stratix10-clkmgr";
 			reg = <0xffd10000 0x1000>;
+			#clock-cells = <1>;
+		};
+
+		clocks {
+			cb_intosc_hs_div2_clk: cb-intosc-hs-div2-clk {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+			};
+
+			cb_intosc_ls_clk: cb-intosc-ls-clk {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+			};
+
+			f2s_free_clk: f2s-free-clk {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+			};
+
+			osc1: osc1 {
+				#clock-cells = <0>;
+				compatible = "fixed-clock";
+			};
 		};
 
 		gmac0: ethernet@ff800000 {
@@ -105,6 +129,8 @@ gmac0: ethernet@ff800000 {
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC0_RESET>;
 			reset-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC0_CLK>;
+			clock-names = "stmmaceth";
 			status = "disabled";
 		};
 
@@ -116,6 +142,8 @@ gmac1: ethernet@ff802000 {
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC1_RESET>;
 			reset-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC1_CLK>;
+			clock-names = "stmmaceth";
 			status = "disabled";
 		};
 
@@ -127,6 +155,8 @@ gmac2: ethernet@ff804000 {
 			mac-address = [00 00 00 00 00 00];
 			resets = <&rst EMAC2_RESET>;
 			reset-names = "stmmaceth";
+			clocks = <&clkmgr STRATIX10_EMAC2_CLK>;
+			clock-names = "stmmaceth";
 			status = "disabled";
 		};
 
@@ -177,6 +207,7 @@ i2c0: i2c@ffc02800 {
 			reg = <0xffc02800 0x100>;
 			interrupts = <0 103 4>;
 			resets = <&rst I2C0_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -187,6 +218,7 @@ i2c1: i2c@ffc02900 {
 			reg = <0xffc02900 0x100>;
 			interrupts = <0 104 4>;
 			resets = <&rst I2C1_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -197,6 +229,7 @@ i2c2: i2c@ffc02a00 {
 			reg = <0xffc02a00 0x100>;
 			interrupts = <0 105 4>;
 			resets = <&rst I2C2_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -207,6 +240,7 @@ i2c3: i2c@ffc02b00 {
 			reg = <0xffc02b00 0x100>;
 			interrupts = <0 106 4>;
 			resets = <&rst I2C3_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -217,6 +251,7 @@ i2c4: i2c@ffc02c00 {
 			reg = <0xffc02c00 0x100>;
 			interrupts = <0 107 4>;
 			resets = <&rst I2C4_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -229,6 +264,9 @@ mmc: dwmmc0@ff808000 {
 			fifo-depth = <0x400>;
 			resets = <&rst SDMMC_RESET>;
 			reset-names = "reset";
+			clocks = <&clkmgr STRATIX10_L4_MP_CLK>,
+				 <&clkmgr STRATIX10_SDMMC_CLK>;
+			clock-names = "biu", "ciu";
 			status = "disabled";
 		};
 
@@ -237,6 +275,25 @@ ocram: sram@ffe00000 {
 			reg = <0xffe00000 0x100000>;
 		};
 
+		pdma: pdma@ffda0000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0xffda0000 0x1000>;
+			interrupts = <0 81 4>,
+				     <0 82 4>,
+				     <0 83 4>,
+				     <0 84 4>,
+				     <0 85 4>,
+				     <0 86 4>,
+				     <0 87 4>,
+				     <0 88 4>,
+				     <0 89 4>;
+			#dma-cells = <1>;
+			#dma-channels = <8>;
+			#dma-requests = <32>;
+			clocks = <&clkmgr STRATIX10_L4_MAIN_CLK>;
+			clock-names = "apb_pclk";
+		};
+
 		rst: rstmgr@ffd11000 {
 			#reset-cells = <1>;
 			compatible = "altr,rst-mgr";
@@ -288,24 +345,32 @@ timer0: timer0@ffc03000 {
 			compatible = "snps,dw-apb-timer";
 			interrupts = <0 113 4>;
 			reg = <0xffc03000 0x100>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
+			clock-names = "timer";
 		};
 
 		timer1: timer1@ffc03100 {
 			compatible = "snps,dw-apb-timer";
 			interrupts = <0 114 4>;
 			reg = <0xffc03100 0x100>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
+			clock-names = "timer";
 		};
 
 		timer2: timer2@ffd00000 {
 			compatible = "snps,dw-apb-timer";
 			interrupts = <0 115 4>;
 			reg = <0xffd00000 0x100>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
+			clock-names = "timer";
 		};
 
 		timer3: timer3@ffd00100 {
 			compatible = "snps,dw-apb-timer";
 			interrupts = <0 116 4>;
 			reg = <0xffd00100 0x100>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
+			clock-names = "timer";
 		};
 
 		uart0: serial0@ffc02000 {
@@ -315,6 +380,7 @@ uart0: serial0@ffc02000 {
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			resets = <&rst UART0_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -325,6 +391,7 @@ uart1: serial1@ffc02100 {
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			resets = <&rst UART1_RESET>;
+			clocks = <&clkmgr STRATIX10_L4_SP_CLK>;
 			status = "disabled";
 		};
 
@@ -387,5 +454,17 @@ watchdog3: watchdog@ffd00500 {
 			resets = <&rst WATCHDOG3_RESET>;
 			status = "disabled";
 		};
+
+		eccmgr {
+			compatible = "altr,socfpga-s10-ecc-manager";
+			interrupts = <0 15 4>, <0 95 4>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			sdramedac {
+				compatible = "altr,sdram-edac-s10";
+				interrupts = <16 4>, <48 4>;
+			};
+		};
 	};
 };

arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts

@@ -50,6 +50,21 @@ memory {
 		/* We expect the bootloader to fill in the reg */
 		reg = <0 0 0 0>;
 	};
+
+	ref_033v: 033-v-ref {
+		compatible = "regulator-fixed";
+		regulator-name = "0.33V";
+		regulator-min-microvolt = <330000>;
+		regulator-max-microvolt = <330000>;
+	};
+
+	soc {
+		clocks {
+			osc1 {
+				clock-frequency = <25000000>;
+			};
+		};
+	};
 };
 
 &gpio1 {
@@ -79,7 +94,7 @@ phy0: ethernet-phy@0 {
 			rxd2-skew-ps = <420>; /* 0ps */
 			rxd3-skew-ps = <420>; /* 0ps */
 			txen-skew-ps = <0>; /* -420ps */
-			txc-skew-ps = <1860>; /* 960ps */
+			txc-skew-ps = <900>; /* 0ps */
 			rxdv-skew-ps = <420>; /* 0ps */
 			rxc-skew-ps = <1680>; /* 780ps */
 		};
@@ -105,3 +120,30 @@ &usb0 {
 &watchdog0 {
 	status = "okay";
 };
+
+&i2c1 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	adc@14 {
+		compatible = "lltc,ltc2497";
+		reg = <0x14>;
+		vref-supply = <&ref_033v>;
+	};
+
+	temp@4c {
+		compatible = "maxim,max1619";
+		reg = <0x4c>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c32";
+		reg = <0x51>;
+		pagesize = <32>;
+	};
+
+	rtc@68 {
+		compatible = "dallas,ds1339";
+		reg = <0x68>;
+	};
+};

drivers/acpi/apei/ghes.c

@@ -481,7 +481,7 @@ static void ghes_do_proc(struct ghes *ghes,
 		if (guid_equal(sec_type, &CPER_SEC_PLATFORM_MEM)) {
 			struct cper_sec_mem_err *mem_err = acpi_hest_get_payload(gdata);
 
-			ghes_edac_report_mem_error(ghes, sev, mem_err);
+			ghes_edac_report_mem_error(sev, mem_err);
 
 			arch_apei_report_mem_error(sev, mem_err);
 			ghes_handle_memory_failure(gdata, sev);
@@ -1087,10 +1087,6 @@ static int ghes_probe(struct platform_device *ghes_dev)
 		goto err;
 	}
 
-	rc = ghes_edac_register(ghes, &ghes_dev->dev);
-	if (rc < 0)
-		goto err;
-
 	switch (generic->notify.type) {
 	case ACPI_HEST_NOTIFY_POLLED:
 		timer_setup(&ghes->timer, ghes_poll_func, TIMER_DEFERRABLE);
@@ -1102,14 +1098,14 @@ static int ghes_probe(struct platform_device *ghes_dev)
 		if (rc) {
 			pr_err(GHES_PFX "Failed to map GSI to IRQ for generic hardware error source: %d\n",
 			       generic->header.source_id);
-			goto err_edac_unreg;
+			goto err;
 		}
 		rc = request_irq(ghes->irq, ghes_irq_func, IRQF_SHARED,
 				 "GHES IRQ", ghes);
 		if (rc) {
 			pr_err(GHES_PFX "Failed to register IRQ for generic hardware error source: %d\n",
 			       generic->header.source_id);
-			goto err_edac_unreg;
+			goto err;
 		}
 		break;
 
@@ -1132,14 +1128,16 @@ static int ghes_probe(struct platform_device *ghes_dev)
 	default:
 		BUG();
 	}
+
 	platform_set_drvdata(ghes_dev, ghes);
 
+	ghes_edac_register(ghes, &ghes_dev->dev);
+
 	/* Handle any pending errors right away */
 	ghes_proc(ghes);
 
 	return 0;
-err_edac_unreg:
-	ghes_edac_unregister(ghes);
+
 err:
 	if (ghes) {
 		ghes_fini(ghes);

drivers/edac/Kconfig

@@ -232,6 +232,7 @@ config EDAC_SBRIDGE
 config EDAC_SKX
 	tristate "Intel Skylake server Integrated MC"
 	depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG
+	depends on ACPI_NFIT || !ACPI_NFIT # if ACPI_NFIT=m, EDAC_SKX can't be y
 	select DMI
 	help
 	  Support for error detection and correction the Intel
@@ -374,7 +375,7 @@ config EDAC_THUNDERX
 
 config EDAC_ALTERA
 	bool "Altera SOCFPGA ECC"
-	depends on EDAC=y && ARCH_SOCFPGA
+	depends on EDAC=y && (ARCH_SOCFPGA || ARCH_STRATIX10)
 	help
 	  Support for error detection and correction on the
 	  Altera SOCs. This must be selected for SDRAM ECC.

drivers/edac/altera_edac.h

+/* SPDX-License-Identifier: GPL-2.0 */
 /*
- *
+ * Copyright (C) 2017-2018, Intel Corporation
  * Copyright (C) 2015 Altera Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef _ALTERA_EDAC_H
 #define _ALTERA_EDAC_H
 
+#include <linux/arm-smccc.h>
 #include <linux/edac.h>
 #include <linux/types.h>
 
@@ -94,6 +84,7 @@
 /* SDRAM Controller Address Width Register */
 #define CV_DRAMADDRW               0xFFC2502C
 #define A10_DRAMADDRW              0xFFCFA0A8
+#define S10_DRAMADDRW              0xF80110E0
 
 /* SDRAM Controller Address Widths Field Register */
 #define DRAMADDRW_COLBIT_MASK      0x001F
@@ -115,6 +106,7 @@
 /* SDRAM Controller Interface Data Width Register */
 #define CV_DRAMIFWIDTH             0xFFC25030
 #define A10_DRAMIFWIDTH            0xFFCFB008
+#define S10_DRAMIFWIDTH            0xF8011008
 
 /* SDRAM Controller Interface Data Width Defines */
 #define CV_DRAMIFWIDTH_16B_ECC     24
@@ -164,6 +156,34 @@
 #define A10_INTMASK_CLR_OFST       0x10
 #define A10_DDR0_IRQ_MASK          BIT(17)
 
+/************* Stratix10 Defines **************/
+
+/* SDRAM Controller EccCtrl Register */
+#define S10_ECCCTRL1_OFST          0xF8011100
+
+/* SDRAM Controller DRAM IRQ Register */
+#define S10_ERRINTEN_OFST          0xF8011110
+
+/* SDRAM Interrupt Mode Register */
+#define S10_INTMODE_OFST           0xF801111C
+
+/* SDRAM Controller Error Status Register */
+#define S10_INTSTAT_OFST           0xF8011120
+
+/* SDRAM Controller ECC Error Address Register */
+#define S10_DERRADDR_OFST          0xF801112C
+#define S10_SERRADDR_OFST          0xF8011130
+
+/* SDRAM Controller ECC Diagnostic Register */
+#define S10_DIAGINTTEST_OFST       0xF8011124
+
+/* SDRAM Single Bit Error Count Compare Set Register */
+#define S10_SERRCNTREG_OFST        0xF801113C
+
+/* Sticky registers for Uncorrected Errors */
+#define S10_SYSMGR_UE_VAL_OFST     0xFFD12220
+#define S10_SYSMGR_UE_ADDR_OFST    0xFFD12224
+
 struct altr_sdram_prv_data {
 	int ecc_ctrl_offset;
 	int ecc_ctl_en_mask;
@@ -296,6 +316,18 @@ struct altr_sdram_mc_data {
 /* A10 ECC Controller memory initialization timeout */
 #define ALTR_A10_ECC_INIT_WATCHDOG_10US      10000
 
+/************* Stratix10 Defines **************/
+
+/* Stratix10 ECC Manager Defines */
+#define S10_SYSMGR_ECC_INTMASK_VAL_OFST   0xFFD12090
+#define S10_SYSMGR_ECC_INTMASK_SET_OFST   0xFFD12094
+#define S10_SYSMGR_ECC_INTMASK_CLR_OFST   0xFFD12098
+
+#define S10_SYSMGR_ECC_INTSTAT_SERR_OFST  0xFFD1209C
+#define S10_SYSMGR_ECC_INTSTAT_DERR_OFST  0xFFD120A0
+
+#define S10_DDR0_IRQ_MASK                 BIT(16)
+
 struct altr_edac_device_dev;
 
 struct edac_device_prv_data {
@@ -340,4 +372,78 @@ struct altr_arria10_edac {
 	struct list_head	a10_ecc_devices;
 };
 
+/*
+ * Functions specified by ARM SMC Calling convention:
+ *
+ * FAST call executes atomic operations, returns when the requested operation
+ * has completed.
+ * STD call starts a operation which can be preempted by a non-secure
+ * interrupt. The call can return before the requested operation has
+ * completed.
+ *
+ * a0..a7 is used as register names in the descriptions below, on arm32
+ * that translates to r0..r7 and on arm64 to w0..w7.
+ */
+
+#define INTEL_SIP_SMC_STD_CALL_VAL(func_num) \
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_64, \
+	ARM_SMCCC_OWNER_SIP, (func_num))
+
+#define INTEL_SIP_SMC_FAST_CALL_VAL(func_num) \
+	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64, \
+	ARM_SMCCC_OWNER_SIP, (func_num))
+
+#define INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION		0xFFFFFFFF
+#define INTEL_SIP_SMC_STATUS_OK				0x0
+#define INTEL_SIP_SMC_REG_ERROR				0x5
+
+/*
+ * Request INTEL_SIP_SMC_REG_READ
+ *
+ * Read a protected register using SMCCC
+ *
+ * Call register usage:
+ * a0: INTEL_SIP_SMC_REG_READ.
+ * a1: register address.
+ * a2-7: not used.
+ *
+ * Return status:
+ * a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
+ *     INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
+ * a1: Value in the register
+ * a2-3: not used.
+ */
+#define INTEL_SIP_SMC_FUNCID_REG_READ 7
+#define INTEL_SIP_SMC_REG_READ \
+	INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_READ)
+
+/*
+ * Request INTEL_SIP_SMC_REG_WRITE
+ *
+ * Write a protected register using SMCCC
+ *
+ * Call register usage:
+ * a0: INTEL_SIP_SMC_REG_WRITE.
+ * a1: register address
+ * a2: value to program into register.
+ * a3-7: not used.
+ *
+ * Return status:
+ * a0: INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_REG_ERROR, or
+ *     INTEL_SIP_SMC_RETURN_UNKNOWN_FUNCTION
+ * a1-3: not used.
+ */
+#define INTEL_SIP_SMC_FUNCID_REG_WRITE 8
+#define INTEL_SIP_SMC_REG_WRITE \
+	INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_REG_WRITE)
+
+struct altr_stratix10_edac {
+	struct device		*dev;
+	int sb_irq;
+	struct irq_domain	*domain;
+	struct irq_chip		irq_chip;
+	struct list_head	s10_ecc_devices;
+	struct notifier_block	panic_notifier;
+};
+
 #endif	/* #ifndef _ALTERA_EDAC_H */

drivers/edac/ghes_edac.c

@@ -91,6 +91,7 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 		struct dimm_info *dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
 						       mci->n_layers,
 						       dimm_fill->count, 0, 0);
+		u16 rdr_mask = BIT(7) | BIT(13);
 
 		if (entry->size == 0xffff) {
 			pr_info("Can't get DIMM%i size\n",
@@ -99,22 +100,21 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 		} else if (entry->size == 0x7fff) {
 			dimm->nr_pages = MiB_TO_PAGES(entry->extended_size);
 		} else {
-			if (entry->size & 1 << 15)
-				dimm->nr_pages = MiB_TO_PAGES((entry->size &
-							       0x7fff) << 10);
+			if (entry->size & BIT(15))
+				dimm->nr_pages = MiB_TO_PAGES((entry->size & 0x7fff) << 10);
 			else
 				dimm->nr_pages = MiB_TO_PAGES(entry->size);
 		}
 
 		switch (entry->memory_type) {
 		case 0x12:
-			if (entry->type_detail & 1 << 13)
+			if (entry->type_detail & BIT(13))
 				dimm->mtype = MEM_RDDR;
 			else
 				dimm->mtype = MEM_DDR;
 			break;
 		case 0x13:
-			if (entry->type_detail & 1 << 13)
+			if (entry->type_detail & BIT(13))
 				dimm->mtype = MEM_RDDR2;
 			else
 				dimm->mtype = MEM_DDR2;
@@ -123,20 +123,29 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 			dimm->mtype = MEM_FB_DDR2;
 			break;
 		case 0x18:
-			if (entry->type_detail & 1 << 13)
+			if (entry->type_detail & BIT(12))
+				dimm->mtype = MEM_NVDIMM;
+			else if (entry->type_detail & BIT(13))
 				dimm->mtype = MEM_RDDR3;
 			else
 				dimm->mtype = MEM_DDR3;
 			break;
+		case 0x1a:
+			if (entry->type_detail & BIT(12))
+				dimm->mtype = MEM_NVDIMM;
+			else if (entry->type_detail & BIT(13))
+				dimm->mtype = MEM_RDDR4;
+			else
+				dimm->mtype = MEM_DDR4;
+			break;
 		default:
-			if (entry->type_detail & 1 << 6)
+			if (entry->type_detail & BIT(6))
 				dimm->mtype = MEM_RMBS;
-			else if ((entry->type_detail & ((1 << 7) | (1 << 13)))
-				 == ((1 << 7) | (1 << 13)))
+			else if ((entry->type_detail & rdr_mask) == rdr_mask)
 				dimm->mtype = MEM_RDR;
-			else if (entry->type_detail & 1 << 7)
+			else if (entry->type_detail & BIT(7))
 				dimm->mtype = MEM_SDR;
-			else if (entry->type_detail & 1 << 9)
+			else if (entry->type_detail & BIT(9))
 				dimm->mtype = MEM_EDO;
 			else
 				dimm->mtype = MEM_UNKNOWN;
@@ -172,8 +181,7 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
 	}
 }
 
-void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
-				struct cper_sec_mem_err *mem_err)
+void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
 {
 	enum hw_event_mc_err_type type;
 	struct edac_raw_error_desc *e;
@@ -183,10 +191,8 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 	char *p;
 	u8 grain_bits;
 
-	if (!pvt) {
-		pr_err("Internal error: Can't find EDAC structure\n");
+	if (!pvt)
 		return;
-	}
 
 	/*
 	 * We can do the locking below because GHES defers error processing
@@ -434,12 +440,16 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev)
 	struct mem_ctl_info *mci;
 	struct edac_mc_layer layers[1];
 	struct ghes_edac_dimm_fill dimm_fill;
-	int idx;
+	int idx = -1;
 
-	/* Check if safe to enable on this system */
-	idx = acpi_match_platform_list(plat_list);
-	if (!force_load && idx < 0)
-		return 0;
+	if (IS_ENABLED(CONFIG_X86)) {
+		/* Check if safe to enable on this system */
+		idx = acpi_match_platform_list(plat_list);
+		if (!force_load && idx < 0)
+			return -ENODEV;
+	} else {
+		idx = 0;
+	}
 
 	/*
 	 * We have only one logical memory controller to which all DIMMs belong.
@@ -519,6 +529,9 @@ void ghes_edac_unregister(struct ghes *ghes)
 {
 	struct mem_ctl_info *mci;
 
+	if (!ghes_pvt)
+		return;
+
 	mci = ghes_pvt->mci;
 	edac_mc_del_mc(mci->pdev);
 	edac_mc_free(mci);

drivers/edac/i7core_edac.c

@@ -1743,7 +1743,7 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
 		err = "write parity error";
 		break;
 	case 19:
-		err = "redundacy loss";
+		err = "redundancy loss";
 		break;
 	case 20:
 		err = "reserved";

include/acpi/ghes.h

@@ -55,22 +55,21 @@ enum {
 /* From drivers/edac/ghes_edac.c */
 
 #ifdef CONFIG_EDAC_GHES
-void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
-				struct cper_sec_mem_err *mem_err);
+void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
 
 int ghes_edac_register(struct ghes *ghes, struct device *dev);
 
 void ghes_edac_unregister(struct ghes *ghes);
 
 #else
-static inline void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
+static inline void ghes_edac_report_mem_error(int sev,
 				       struct cper_sec_mem_err *mem_err)
 {
 }
 
 static inline int ghes_edac_register(struct ghes *ghes, struct device *dev)
 {
-	return 0;
+	return -ENODEV;
 }
 
 static inline void ghes_edac_unregister(struct ghes *ghes)