Commit 4610da71 authored by Michal Wajdeczko's avatar Michal Wajdeczko
Browse files

drm/xe/pf: Add functions to bulk configure EQ/PT on GT 



We already have functions to bulk configure 'hard' resources like
GGTT, LMEM or GuC context/doorbells IDs. Now add functions for the
'soft' scheduling parameters, as we will need them soon in the
upcoming patches.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: default avatarPiotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: default avatarLucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251030222348.186658-9-michal.wajdeczko@intel.com
parent 3c54ef91

drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c

+56 −0
Original line number Diff line number Diff line
@@ -1810,6 +1810,34 @@ u32 xe_gt_sriov_pf_config_get_exec_quantum(struct xe_gt *gt, unsigned int vfid) 
	return pf_get_exec_quantum(gt, vfid);

}



/**

 * xe_gt_sriov_pf_config_bulk_set_exec_quantum_locked() - Configure EQ for PF and VFs.

 * @gt: the &xe_gt to configure

 * @exec_quantum: requested execution quantum in milliseconds (0 is infinity)

 *

 * This function can only be called on PF with the master mutex hold.

 *

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

 */

int xe_gt_sriov_pf_config_bulk_set_exec_quantum_locked(struct xe_gt *gt, u32 exec_quantum)

{

	unsigned int totalvfs = xe_gt_sriov_pf_get_totalvfs(gt);

	unsigned int n;

	int err = 0;



	lockdep_assert_held(xe_gt_sriov_pf_master_mutex(gt));



	for (n = 0; n <= totalvfs; n++) {

		err = pf_provision_exec_quantum(gt, VFID(n), exec_quantum);

		if (err)

			break;

	}



	return pf_config_bulk_set_u32_done(gt, 0, 1 + totalvfs, exec_quantum,

					   pf_get_exec_quantum, "execution quantum",

					   exec_quantum_unit, n, err);

}



static const char *preempt_timeout_unit(u32 preempt_timeout)

{

	return preempt_timeout ? "us" : "(infinity)";
@@ -1912,6 +1940,34 @@ u32 xe_gt_sriov_pf_config_get_preempt_timeout(struct xe_gt *gt, unsigned int vfi 
	return pf_get_preempt_timeout(gt, vfid);

}



/**

 * xe_gt_sriov_pf_config_bulk_set_preempt_timeout_locked() - Configure PT for PF and VFs.

 * @gt: the &xe_gt to configure

 * @preempt_timeout: requested preemption timeout in microseconds (0 is infinity)

 *

 * This function can only be called on PF with the master mutex hold.

 *

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

 */

int xe_gt_sriov_pf_config_bulk_set_preempt_timeout_locked(struct xe_gt *gt, u32 preempt_timeout)

{

	unsigned int totalvfs = xe_gt_sriov_pf_get_totalvfs(gt);

	unsigned int n;

	int err = 0;



	lockdep_assert_held(xe_gt_sriov_pf_master_mutex(gt));



	for (n = 0; n <= totalvfs; n++) {

		err = pf_provision_preempt_timeout(gt, VFID(n), preempt_timeout);

		if (err)

			break;

	}



	return pf_config_bulk_set_u32_done(gt, 0, 1 + totalvfs, preempt_timeout,

					   pf_get_preempt_timeout, "preemption timeout",

					   preempt_timeout_unit, n, err);

}



static const char *sched_priority_unit(u32 priority)

{

	return priority == GUC_SCHED_PRIORITY_LOW ? "(low)" :

drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h

+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ int xe_gt_sriov_pf_config_set_exec_quantum(struct xe_gt *gt, unsigned int vfid, 
u32 xe_gt_sriov_pf_config_get_exec_quantum_locked(struct xe_gt *gt, unsigned int vfid);

int xe_gt_sriov_pf_config_set_exec_quantum_locked(struct xe_gt *gt, unsigned int vfid,

						  u32 exec_quantum);

int xe_gt_sriov_pf_config_bulk_set_exec_quantum_locked(struct xe_gt *gt, u32 exec_quantum);



u32 xe_gt_sriov_pf_config_get_preempt_timeout(struct xe_gt *gt, unsigned int vfid);

int xe_gt_sriov_pf_config_set_preempt_timeout(struct xe_gt *gt, unsigned int vfid,
@@ -51,6 +52,7 @@ int xe_gt_sriov_pf_config_set_preempt_timeout(struct xe_gt *gt, unsigned int vfi 
u32 xe_gt_sriov_pf_config_get_preempt_timeout_locked(struct xe_gt *gt, unsigned int vfid);

int xe_gt_sriov_pf_config_set_preempt_timeout_locked(struct xe_gt *gt, unsigned int vfid,

						     u32 preempt_timeout);

int xe_gt_sriov_pf_config_bulk_set_preempt_timeout_locked(struct xe_gt *gt, u32 preempt_timeout);



u32 xe_gt_sriov_pf_config_get_sched_priority(struct xe_gt *gt, unsigned int vfid);

int xe_gt_sriov_pf_config_set_sched_priority(struct xe_gt *gt, unsigned int vfid, u32 priority);