From 034dd340b08be1f2f0477ad16131d609f9dbd53c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 Aug 2026 09:22:00 -0700 Subject: Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure --- .../bindings/edac/altr,socfpga-ecc-manager.yaml | 324 +++++++++++++++++++++ .../bindings/edac/amazon,al-mc-edac.yaml | 66 +++++ .../devicetree/bindings/edac/apm,xgene-edac.yaml | 202 +++++++++++++ .../bindings/edac/aspeed,ast2400-sdram-edac.yaml | 48 +++ .../devicetree/bindings/edac/dmc-520.yaml | 61 ++++ 5 files changed, 701 insertions(+) create mode 100644 Documentation/devicetree/bindings/edac/altr,socfpga-ecc-manager.yaml create mode 100644 Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml create mode 100644 Documentation/devicetree/bindings/edac/apm,xgene-edac.yaml create mode 100644 Documentation/devicetree/bindings/edac/aspeed,ast2400-sdram-edac.yaml create mode 100644 Documentation/devicetree/bindings/edac/dmc-520.yaml (limited to 'Documentation/devicetree/bindings/edac') diff --git a/Documentation/devicetree/bindings/edac/altr,socfpga-ecc-manager.yaml b/Documentation/devicetree/bindings/edac/altr,socfpga-ecc-manager.yaml new file mode 100644 index 000000000..136e8fccd --- /dev/null +++ b/Documentation/devicetree/bindings/edac/altr,socfpga-ecc-manager.yaml @@ -0,0 +1,324 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2025 Altera Corporation +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/edac/altr,socfpga-ecc-manager.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Altera SoCFPGA ECC Manager + +maintainers: + - Niravkumar L Rabara + +description: + This binding describes the device tree nodes required for the Altera SoCFPGA + ECC Manager for the Cyclone5, Arria5, Arria10, Stratix10, and Agilex chip + families. + +properties: + + compatible: + oneOf: + - items: + - const: altr,socfpga-s10-ecc-manager + - const: altr,socfpga-a10-ecc-manager + - const: altr,socfpga-a10-ecc-manager + - const: altr,socfpga-ecc-manager + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + interrupts: + minItems: 1 + maxItems: 2 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + ranges: true + + altr,sysmgr-syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to Stratix10 System Manager Block with the ECC manager registers + + sdramedac: + type: object + additionalProperties: false + + properties: + compatible: + enum: + - altr,sdram-edac + - altr,sdram-edac-a10 + - altr,sdram-edac-s10 + + interrupts: + minItems: 1 + maxItems: 2 + + altr,sdr-syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to SDRAM parent + + required: + - compatible + - interrupts + - altr,sdr-syscon + +patternProperties: + "^ocram-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + oneOf: + - items: + - const: altr,socfpga-s10-ocram-ecc + - const: altr,socfpga-a10-ocram-ecc + - const: altr,socfpga-a10-ocram-ecc + - const: altr,socfpga-ocram-ecc + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 2 + + iram: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to OCRAM parent + + altr,ecc-parent: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to OCRAM parent + + required: + - compatible + - reg + - interrupts + + "^usb[0-9]-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + oneOf: + - items: + - const: altr,socfpga-s10-usb-ecc + - const: altr,socfpga-usb-ecc + - const: altr,socfpga-usb-ecc + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 2 + + altr,ecc-parent: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to USB parent + + required: + - compatible + - reg + - interrupts + - altr,ecc-parent + + "^emac[0-9]-[t,r]x-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + oneOf: + - items: + - const: altr,socfpga-s10-eth-mac-ecc + - const: altr,socfpga-eth-mac-ecc + - const: altr,socfpga-eth-mac-ecc + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 2 + + altr,ecc-parent: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to ethernet parent + + required: + - compatible + - reg + - interrupts + - altr,ecc-parent + + "^sdmmc[a-f]-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + oneOf: + - items: + - const: altr,socfpga-s10-sdmmc-ecc + - const: altr,socfpga-sdmmc-ecc + - const: altr,socfpga-sdmmc-ecc + + reg: + maxItems: 1 + + interrupts: + minItems: 2 + maxItems: 4 + + altr,ecc-parent: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to SD/MMC parent + + required: + - compatible + - reg + - interrupts + - altr,ecc-parent + + "^l2-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + enum: + - altr,socfpga-a10-l2-ecc + - altr,socfpga-l2-ecc + + reg: + maxItems: 1 + + interrupts: + maxItems: 2 + + required: + - compatible + - reg + - interrupts + + "^dma-ecc@[a-f0-9]+$": + type: object + additionalProperties: false + + properties: + compatible: + const: altr,socfpga-dma-ecc + reg: + maxItems: 1 + + interrupts: + maxItems: 2 + + altr,ecc-parent: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to SD/MMC parent + + required: + - compatible + - reg + - interrupts + - altr,ecc-parent + +if: + properties: + compatible: + contains: + const: altr,socfpga-ecc-manager +then: + required: + - compatible + - "#address-cells" + - "#size-cells" + - ranges + +else: + required: + - compatible + - "#address-cells" + - "#size-cells" + - interrupts + - interrupt-controller + - "#interrupt-cells" + - ranges + - altr,sysmgr-syscon + +additionalProperties: false + +examples: + - | + #include + #include + eccmgr { + compatible = "altr,socfpga-s10-ecc-manager", + "altr,socfpga-a10-ecc-manager"; + altr,sysmgr-syscon = <&sysmgr>; + #address-cells = <1>; + #size-cells = <1>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <2>; + ranges; + + sdramedac { + compatible = "altr,sdram-edac-s10"; + altr,sdr-syscon = <&sdr>; + interrupts = <16 IRQ_TYPE_LEVEL_HIGH>; + }; + + ocram-ecc@ff8cc000 { + compatible = "altr,socfpga-s10-ocram-ecc", + "altr,socfpga-a10-ocram-ecc"; + reg = <0xff8cc000 0x100>; + altr,ecc-parent = <&ocram>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH>; + }; + + usb0-ecc@ff8c4000 { + compatible = "altr,socfpga-s10-usb-ecc", + "altr,socfpga-usb-ecc"; + reg = <0xff8c4000 0x100>; + altr,ecc-parent = <&usb0>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; + }; + + emac0-rx-ecc@ff8c0000 { + compatible = "altr,socfpga-s10-eth-mac-ecc", + "altr,socfpga-eth-mac-ecc"; + reg = <0xff8c0000 0x100>; + altr,ecc-parent = <&gmac0>; + interrupts = <4 IRQ_TYPE_LEVEL_HIGH>; + }; + + emac0-tx-ecc@ff8c0400 { + compatible = "altr,socfpga-s10-eth-mac-ecc", + "altr,socfpga-eth-mac-ecc"; + reg = <0xff8c0400 0x100>; + altr,ecc-parent = <&gmac0>; + interrupts = <5 IRQ_TYPE_LEVEL_HIGH>; + }; + + sdmmca-ecc@ff8c8c00 { + compatible = "altr,socfpga-s10-sdmmc-ecc", + "altr,socfpga-sdmmc-ecc"; + reg = <0xff8c8c00 0x100>; + altr,ecc-parent = <&mmc>; + interrupts = <14 IRQ_TYPE_LEVEL_HIGH>, + <15 IRQ_TYPE_LEVEL_HIGH>; + }; + }; diff --git a/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml new file mode 100644 index 000000000..4cfc3a187 --- /dev/null +++ b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/edac/amazon,al-mc-edac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amazon's Annapurna Labs Memory Controller EDAC + +maintainers: + - Talel Shenhar + - Talel Shenhar + +description: | + EDAC node is defined to describe on-chip error detection and correction for + Amazon's Annapurna Labs Memory Controller. + +properties: + + compatible: + const: amazon,al-mc-edac + + reg: + maxItems: 1 + + "#address-cells": + const: 2 + + "#size-cells": + const: 2 + + interrupts: + minItems: 1 + items: + - description: uncorrectable error interrupt + - description: correctable error interrupt + + interrupt-names: + minItems: 1 + items: + - const: ue + - const: ce + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include + soc { + #address-cells = <2>; + #size-cells = <2>; + edac@f0080000 { + #address-cells = <2>; + #size-cells = <2>; + compatible = "amazon,al-mc-edac"; + reg = <0x0 0xf0080000 0x0 0x00010000>; + interrupt-parent = <&amazon_al_system_fabric>; + interrupt-names = "ue"; + interrupts = <20 IRQ_TYPE_LEVEL_HIGH>; + }; + }; diff --git a/Documentation/devicetree/bindings/edac/apm,xgene-edac.yaml b/Documentation/devicetree/bindings/edac/apm,xgene-edac.yaml new file mode 100644 index 000000000..9637df7af --- /dev/null +++ b/Documentation/devicetree/bindings/edac/apm,xgene-edac.yaml @@ -0,0 +1,202 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/edac/apm,xgene-edac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: APM X-Gene SoC EDAC + +maintainers: + - Khuong Dinh + +description: > + EDAC node is defined to describe on-chip error detection and correction. + + The following error types are supported: + + memory controller - Memory controller + PMD (L1/L2) - Processor module unit (PMD) L1/L2 cache + L3 - L3 cache controller + SoC - SoC IPs such as Ethernet, SATA, etc + +properties: + compatible: + const: apm,xgene-edac + + reg: + items: + - description: CPU bus (PCP) resource + + '#address-cells': + const: 2 + + '#size-cells': + const: 2 + + ranges: true + + interrupts: + description: Interrupt-specifier for MCU, PMD, L3, or SoC error IRQ(s). + items: + - description: MCU error IRQ + - description: PMD error IRQ + - description: L3 error IRQ + - description: SoC error IRQ + minItems: 1 + + regmap-csw: + description: Regmap of the CPU switch fabric (CSW) resource. + $ref: /schemas/types.yaml#/definitions/phandle + + regmap-mcba: + description: Regmap of the MCB-A (memory bridge) resource. + $ref: /schemas/types.yaml#/definitions/phandle + + regmap-mcbb: + description: Regmap of the MCB-B (memory bridge) resource. + $ref: /schemas/types.yaml#/definitions/phandle + + regmap-efuse: + description: Regmap of the PMD efuse resource. + $ref: /schemas/types.yaml#/definitions/phandle + + regmap-rb: + description: Regmap of the register bus resource (optional for compatibility). + $ref: /schemas/types.yaml#/definitions/phandle + +required: + - compatible + - regmap-csw + - regmap-mcba + - regmap-mcbb + - regmap-efuse + - reg + - interrupts + +# Child-node bindings +patternProperties: + '^edacmc@': + description: Memory controller subnode + type: object + additionalProperties: false + + properties: + compatible: + const: apm,xgene-edac-mc + + reg: + maxItems: 1 + + memory-controller: + description: Instance number of the memory controller. + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 3 + + required: + - compatible + - reg + - memory-controller + + '^edacpmd@': + description: PMD subnode + type: object + additionalProperties: false + + properties: + compatible: + const: apm,xgene-edac-pmd + + reg: + maxItems: 1 + + pmd-controller: + description: Instance number of the PMD controller. + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 3 + + required: + - compatible + - reg + - pmd-controller + + '^edacl3@': + description: L3 subnode + type: object + additionalProperties: false + + properties: + compatible: + enum: + - apm,xgene-edac-l3 + - apm,xgene-edac-l3-v2 + + reg: + maxItems: 1 + + required: + - compatible + - reg + + '^edacsoc@': + description: SoC subnode + type: object + additionalProperties: false + + properties: + compatible: + enum: + - apm,xgene-edac-soc + - apm,xgene-edac-soc-v1 + + reg: + maxItems: 1 + + required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + bus { + #address-cells = <2>; + #size-cells = <2>; + + edac@78800000 { + compatible = "apm,xgene-edac"; + reg = <0x0 0x78800000 0x0 0x100>; + #address-cells = <2>; + #size-cells = <2>; + ranges; + interrupts = <0x0 0x20 0x4>, <0x0 0x21 0x4>, <0x0 0x27 0x4>; + + regmap-csw = <&csw>; + regmap-mcba = <&mcba>; + regmap-mcbb = <&mcbb>; + regmap-efuse = <&efuse>; + regmap-rb = <&rb>; + + edacmc@7e800000 { + compatible = "apm,xgene-edac-mc"; + reg = <0x0 0x7e800000 0x0 0x1000>; + memory-controller = <0>; + }; + + edacpmd@7c000000 { + compatible = "apm,xgene-edac-pmd"; + reg = <0x0 0x7c000000 0x0 0x200000>; + pmd-controller = <0>; + }; + + edacl3@7e600000 { + compatible = "apm,xgene-edac-l3"; + reg = <0x0 0x7e600000 0x0 0x1000>; + }; + + edacsoc@7e930000 { + compatible = "apm,xgene-edac-soc-v1"; + reg = <0x0 0x7e930000 0x0 0x1000>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/edac/aspeed,ast2400-sdram-edac.yaml b/Documentation/devicetree/bindings/edac/aspeed,ast2400-sdram-edac.yaml new file mode 100644 index 000000000..09735826d --- /dev/null +++ b/Documentation/devicetree/bindings/edac/aspeed,ast2400-sdram-edac.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/edac/aspeed,ast2400-sdram-edac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Aspeed BMC SoC SDRAM EDAC controller + +maintainers: + - Stefan Schaeckeler + +description: > + The Aspeed BMC SoC supports DDR3 and DDR4 memory with and without ECC (error + correction check). + + The memory controller supports SECDED (single bit error correction, double bit + error detection) and single bit error auto scrubbing by reserving 8 bits for + every 64 bit word (effectively reducing available memory to 8/9). + + Note, the bootloader must configure ECC mode in the memory controller. + +properties: + compatible: + enum: + - aspeed,ast2400-sdram-edac + - aspeed,ast2500-sdram-edac + - aspeed,ast2600-sdram-edac + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + sdram@1e6e0000 { + compatible = "aspeed,ast2500-sdram-edac"; + reg = <0x1e6e0000 0x174>; + interrupts = <0>; + }; diff --git a/Documentation/devicetree/bindings/edac/dmc-520.yaml b/Documentation/devicetree/bindings/edac/dmc-520.yaml new file mode 100644 index 000000000..84db39666 --- /dev/null +++ b/Documentation/devicetree/bindings/edac/dmc-520.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/edac/dmc-520.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM DMC-520 EDAC + +maintainers: + - Lei Wang + +description: |+ + DMC-520 node is defined to describe DRAM error detection and correction. + + https://static.docs.arm.com/100000/0200/corelink_dmc520_trm_100000_0200_01_en.pdf + +properties: + compatible: + items: + - const: brcm,dmc-520 + - const: arm,dmc-520 + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 10 + + interrupt-names: + minItems: 1 + maxItems: 10 + items: + enum: + - ram_ecc_errc + - ram_ecc_errd + - dram_ecc_errc + - dram_ecc_errd + - failed_access + - failed_prog + - link_err + - temperature_event + - arch_fsm + - phy_request + +required: + - compatible + - reg + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + dmc0: dmc@200000 { + compatible = "brcm,dmc-520", "arm,dmc-520"; + reg = <0x200000 0x80000>; + interrupts = <0x0 0x349 0x4>, <0x0 0x34B 0x4>; + interrupt-names = "dram_ecc_errc", "dram_ecc_errd"; + }; -- cgit v1.3.1