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drm/xe/psmi: Add GuC flag to enable PSMI

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PSMI allows to capture data from the GPU useful for early
validation. From the kernel side there isn't much to be done, just a few
things:

	1) Toggle the feature support in GuC
	2) Enable some additional WAs
	3) Allocate buffers

Here is the first step, with the next ones to follow. For now everything
is disabled through a check in configfs that is currently hardcoded to
disabled.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://lore.kernel.org/r/20250821-psmi-v5-1-34ab7550d3d8@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Lucas De Marchi
2025-08-21 09:17:56 -07:00
parent 2515d2b9ab
commit efeb036ffd
3 changed files with 9 additions and 1 deletions
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2
drivers/gpu/drm/xe/xe_configfs.h
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@@ -16,12 +16,14 @@ void xe_configfs_exit(void);
bool xe_configfs_get_survivability_mode(struct pci_dev *pdev);
void xe_configfs_clear_survivability_mode(struct pci_dev *pdev);
u64 xe_configfs_get_engines_allowed(struct pci_dev *pdev);
static inline bool xe_configfs_get_psmi_enabled(struct pci_dev *pdev) { return false; }
#else
static inline int xe_configfs_init(void) { return 0; }
static inline void xe_configfs_exit(void) { }
static inline bool xe_configfs_get_survivability_mode(struct pci_dev *pdev) { return false; }
static inline void xe_configfs_clear_survivability_mode(struct pci_dev *pdev) { }
static inline u64 xe_configfs_get_engines_allowed(struct pci_dev *pdev) { return U64_MAX; }
static inline bool xe_configfs_get_psmi_enabled(struct pci_dev *pdev) { return false; }
#endif
#endif