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Add a sysfs interface that reports the current GPU health state and lets admin users and management tools update it but is readable by all users. Requests are routed through the sysctrl mailbox. The interface is present only on platforms that support the GPU health indicator. The interface is a single read/write file at the device level: $ cat /sys/.../device/gpu_health ok $ echo critical > /sys/.../device/gpu_health $ cat /sys/.../device/gpu_health critical Signed-off-by: Soham Purkait <soham.purkait@intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Raag Jadav <raag.jadav@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Reviewed-by: Badal Nilawar <badal.nilawar@intel.com> Link: https://patch.msgid.link/20260716073600.674089-4-soham.purkait@intel.com Signed-off-by: Riana Tauro <riana.tauro@intel.com>
31 lines
948 B
Plaintext
31 lines
948 B
Plaintext
What: /sys/bus/pci/drivers/xe/.../gpu_health
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Date: July 2026
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KernelVersion: 7.3
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Contact: intel-xe@lists.freedesktop.org
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Description:
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This file exposes the current gpu health state and allows the gpu
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health state to be updated.
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This sysfs file is present only on Intel Xe platforms that support
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the gpu health indicator interface for RAS. Reading the current
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health state is available to all users, while updating the health
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state is restricted to administrative users only.
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Read returns a single line containing one of the valid values for
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the current gpu health state. Writing one of the valid values
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updates the current gpu health state.
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The valid values for the gpu health state are:
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ok
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The gpu is healthy and operating within normal
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parameters.
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warning
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The gpu is experiencing minor issues but remains
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operational.
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critical
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The gpu is in a critical state and may not be
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operational.
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