Unverified Commit a885a278 authored by David E. Box's avatar David E. Box Committed by Ilpo Järvinen
Browse files

platform/x86/intel/vsec: Set OOBMSM to CPU mapping 



Add functions, intel_vsec_set/get_mapping(), to set and retrieve the
OOBMSM-to-CPU mapping data in the private data of the parent Intel VSEC
driver. With this mapping information available, other Intel VSEC features
on the same OOBMSM device can easily access and use the mapping data,
allowing each of the OOBMSM features to map to the CPUs they provides data
for.

Signed-off-by: default avatarDavid E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20250703022832.1302928-12-david.e.box@linux.intel.com


Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
parent 934954df

drivers/platform/x86/intel/vsec.c

+31 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ enum vsec_device_state { 
struct vsec_priv {

	struct intel_vsec_platform_info *info;

	struct device *suppliers[VSEC_FEATURE_COUNT];

	struct oobmsm_plat_info plat_info;

	enum vsec_device_state state[VSEC_FEATURE_COUNT];

	unsigned long found_caps;

};
@@ -665,6 +666,36 @@ static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_device_id 
	return 0;

}



int intel_vsec_set_mapping(struct oobmsm_plat_info *plat_info,

			   struct intel_vsec_device *vsec_dev)

{

	struct vsec_priv *priv;



	priv = pci_get_drvdata(vsec_dev->pcidev);

	if (!priv)

		return -EINVAL;



	priv->plat_info = *plat_info;



	return 0;

}

EXPORT_SYMBOL_NS_GPL(intel_vsec_set_mapping, "INTEL_VSEC");



struct oobmsm_plat_info *intel_vsec_get_mapping(struct pci_dev *pdev)

{

	struct vsec_priv *priv;



	if (!pci_match_id(intel_vsec_pci_ids, pdev))

		return ERR_PTR(-EINVAL);



	priv = pci_get_drvdata(pdev);

	if (!priv)

		return ERR_PTR(-EINVAL);



	return &priv->plat_info;

}

EXPORT_SYMBOL_NS_GPL(intel_vsec_get_mapping, "INTEL_VSEC");



/* DG1 info */

static struct intel_vsec_header dg1_header = {

	.length = 0x10,

include/linux/intel_vsec.h

+12 −0
Original line number Diff line number Diff line
@@ -183,11 +183,23 @@ static inline struct intel_vsec_device *auxdev_to_ivdev(struct auxiliary_device 
#if IS_ENABLED(CONFIG_INTEL_VSEC)

int intel_vsec_register(struct pci_dev *pdev,

			 struct intel_vsec_platform_info *info);

int intel_vsec_set_mapping(struct oobmsm_plat_info *plat_info,

			   struct intel_vsec_device *vsec_dev);

struct oobmsm_plat_info *intel_vsec_get_mapping(struct pci_dev *pdev);

#else

static inline int intel_vsec_register(struct pci_dev *pdev,

				       struct intel_vsec_platform_info *info)

{

	return -ENODEV;

}

static inline int intel_vsec_set_mapping(struct oobmsm_plat_info *plat_info,

					 struct intel_vsec_device *vsec_dev)

{

	return -ENODEV;

}

static inline struct oobmsm_plat_info *intel_vsec_get_mapping(struct pci_dev *pdev)

{

	return ERR_PTR(-ENODEV);

}

#endif

#endif