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

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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: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251030222348.186658-9-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2025-10-30 23:23:39 +01:00
parent 3c54ef9121
commit 4610da71fc
2 changed files with 58 additions and 0 deletions
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56
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
View File

@ -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)" :

2
drivers/gpu/drm/xe/xe_gt_sriov_pf_config.h
View File

@ -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);