Simone
4697ce3e3b
Add a driver for the integrated memory controller (iMC) SMBus engine on Intel Skylake-X / Cascade Lake-X processors (socket LGA 2066, platform X299, PCU function 8086:2085). The engine provides two SMBus channels — one per pair of DIMM slots — over which SPD EEPROMs, DDR4 thermal sensors and third-party LED controllers are accessible. Exposing it as a pair of standard Linux I2C adapters lets existing tools (i2c-tools, lm-sensors) use it without bespoke sysfs hacks. Key design decisions: - ECAM MMIO access instead of CF8/CFC port I/O (SMM traps port writes) - Dynamic MCFG table parsing for mmcfg_base (no hardcoding) - Support for SMBus BYTE_DATA and WORD_DATA transfers - devm-managed resources with automatic cleanup - Global mutex to serialize transactions across both channels sharing the same ECAM mapping Signed-off-by: Simone Chifari <simone.chifari@gmail.com>
44 lines
1.1 KiB
YAML
44 lines
1.1 KiB
YAML
name: CI
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on:
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push:
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branches:
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- main
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pull_request:
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branches:
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- main
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workflow_dispatch:
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concurrency:
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group: ci-${{ github.ref }}
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cancel-in-progress: true
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jobs:
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build:
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runs-on: ubuntu-latest
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timeout-minutes: 30
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steps:
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- uses: actions/checkout@v4
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- name: Install build dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y build-essential linux-headers-$(uname -r)
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- name: Build module
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run: make
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- name: Run checkpatch
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run: |
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curl -sSLo checkpatch.pl https://raw.githubusercontent.com/torvalds/linux/master/scripts/checkpatch.pl
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curl -sSLo spelling.txt https://raw.githubusercontent.com/torvalds/linux/master/scripts/spelling.txt
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perl checkpatch.pl --no-tree --strict --no-summary --show-types -f i2c-imc-skylake.c
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: i2c-imc-skylake-${{ github.ref_name }}
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path: i2c-imc-skylake.ko
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if-no-files-found: error
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