Commit b7a73b57 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/pf: Add functions to bulk provision EQ/PT 



We already have functions to configure EQ/PT for single VF across
all tiles/GTs. Now add helper functions that will do that for all
VFs (and the PF) at once.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251030222348.186658-10-michal.wajdeczko@intel.com
parent 4610da71

drivers/gpu/drm/xe/xe_sriov_pf_provision.c

+56 −0
Original line number Diff line number Diff line
@@ -153,6 +153,34 @@ int xe_sriov_pf_provision_set_mode(struct xe_device *xe, enum xe_sriov_provision 
	return 0;

}



/**

 * xe_sriov_pf_provision_bulk_apply_eq() - Change execution quantum for all VFs and PF.

 * @xe: the PF &xe_device

 * @eq: execution quantum in [ms] to set

 *

 * Change execution quantum (EQ) provisioning on all tiles/GTs.

 *

 * This function can only be called on PF.

 *

 * Return: 0 on success or a negative error code on failure.

 */

int xe_sriov_pf_provision_bulk_apply_eq(struct xe_device *xe, u32 eq)

{

	struct xe_gt *gt;

	unsigned int id;

	int result = 0;

	int err;



	guard(mutex)(xe_sriov_pf_master_mutex(xe));



	for_each_gt(gt, xe, id) {

		err = xe_gt_sriov_pf_config_bulk_set_exec_quantum_locked(gt, eq);

		result = result ?: err;

	}



	return result;

}



/**

 * xe_sriov_pf_provision_apply_vf_eq() - Change VF's execution quantum.

 * @xe: the PF &xe_device
@@ -226,6 +254,34 @@ int xe_sriov_pf_provision_query_vf_eq(struct xe_device *xe, unsigned int vfid, u 
	return !count ? -ENODATA : 0;

}



/**

 * xe_sriov_pf_provision_bulk_apply_pt() - Change preemption timeout for all VFs and PF.

 * @xe: the PF &xe_device

 * @pt: preemption timeout in [us] to set

 *

 * Change preemption timeout (PT) provisioning on all tiles/GTs.

 *

 * This function can only be called on PF.

 *

 * Return: 0 on success or a negative error code on failure.

 */

int xe_sriov_pf_provision_bulk_apply_pt(struct xe_device *xe, u32 pt)

{

	struct xe_gt *gt;

	unsigned int id;

	int result = 0;

	int err;



	guard(mutex)(xe_sriov_pf_master_mutex(xe));



	for_each_gt(gt, xe, id) {

		err = xe_gt_sriov_pf_config_bulk_set_preempt_timeout_locked(gt, pt);

		result = result ?: err;

	}



	return result;

}



/**

 * xe_sriov_pf_provision_apply_vf_pt() - Change VF's preemption timeout.

 * @xe: the PF &xe_device

drivers/gpu/drm/xe/xe_sriov_pf_provision.h

+2 −0
Original line number Diff line number Diff line
@@ -12,9 +12,11 @@ 


struct xe_device;



int xe_sriov_pf_provision_bulk_apply_eq(struct xe_device *xe, u32 eq);

int xe_sriov_pf_provision_apply_vf_eq(struct xe_device *xe, unsigned int vfid, u32 eq);

int xe_sriov_pf_provision_query_vf_eq(struct xe_device *xe, unsigned int vfid, u32 *eq);



int xe_sriov_pf_provision_bulk_apply_pt(struct xe_device *xe, u32 pt);

int xe_sriov_pf_provision_apply_vf_pt(struct xe_device *xe, unsigned int vfid, u32 pt);

int xe_sriov_pf_provision_query_vf_pt(struct xe_device *xe, unsigned int vfid, u32 *pt);