From: Michal Wajdeczko <michal.wajdeczko@intel.com>
Date: Thu, 30 Oct 2025 22:23:40 +0000 (+0100)
Subject: drm/xe/pf: Add functions to bulk provision EQ/PT
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b7a73b5775d4a2524674ddf1b997c5e8f5cfe66c;p=thirdparty%2Fkernel%2Flinux.git

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: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251030222348.186658-10-michal.wajdeczko@intel.com
---

diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_provision.c b/drivers/gpu/drm/xe/xe_sriov_pf_provision.c
index 8040747186d7b..0f5bcc076b783 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_provision.c
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_provision.c
@@ -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
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_provision.h b/drivers/gpu/drm/xe/xe_sriov_pf_provision.h
index cb81b5880930f..aa8a95b1c0bec 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_provision.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_provision.h
@@ -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);