drm/xe/pf: Derive admin-only PF mode from xe_device state

Stop tracking admin-only PF mode in a separate `xe->sriov.pf.admin_only`
field and use `xe_device_is_admin_only(xe)` as the single source of
admin mode.

Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20260413095637.2871287-2-satyanarayana.k.v.p@intel.com

5 files changed, 23 insertions, 12 deletions

diff --git a/drivers/gpu/drm/xe/tests/xe_gt_sriov_pf_config_kunit.c b/drivers/gpu/drm/xe/tests/xe_gt_sriov_pf_config_kunit.c
index efa8963ec248..e6eaa94d4d30 100644
--- a/drivers/gpu/drm/xe/tests/xe_gt_sriov_pf_config_kunit.c
+++ b/drivers/gpu/drm/xe/tests/xe_gt_sriov_pf_config_kunit.c
@@ -13,11 +13,28 @@
 #define TEST_MAX_VFS	63
 #define TEST_VRAM	0x7a800000ull	/* random size that works on 32-bit */
 
+static bool xe_device_is_admin_only_stub_enable(const struct xe_device *xe)
+{
+	return true;
+}
+
+static bool xe_device_is_admin_only_stub_disable(const struct xe_device *xe)
+{
+	return false;
+}
+
 static void pf_set_admin_mode(struct xe_device *xe, bool enable)
 {
-	/* should match logic of xe_sriov_pf_admin_only() */
-	xe->sriov.pf.admin_only = enable;
+	typeof(xe_device_is_admin_only) *stub = enable ?
+		xe_device_is_admin_only_stub_enable :
+		xe_device_is_admin_only_stub_disable;
+
+	kunit_activate_static_stub(kunit_get_current_test(),
+				   xe_device_is_admin_only,
+				   *stub);
+
 	KUNIT_EXPECT_EQ(kunit_get_current_test(), enable, xe_sriov_pf_admin_only(xe));
+	KUNIT_EXPECT_EQ(kunit_get_current_test(), enable, xe_device_is_admin_only(xe));
 }
 
 static void pf_set_usable_vram(struct xe_device *xe, u64 usable)
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index ceddda10f78f..4b45b617a039 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -17,6 +17,7 @@
 #include <drm/drm_managed.h>
 #include <drm/drm_pagemap_util.h>
 #include <drm/drm_print.h>
+#include <kunit/static_stub.h>
 #include <uapi/drm/xe_drm.h>
 
 #include "display/xe_display.h"
@@ -445,6 +446,7 @@ static struct drm_driver admin_only_driver = {
  */
 bool xe_device_is_admin_only(const struct xe_device *xe)
 {
+	KUNIT_STATIC_STUB_REDIRECT(xe_device_is_admin_only, xe);
 	return xe->drm.driver == &admin_only_driver;
 }
 #endif
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf.c b/drivers/gpu/drm/xe/xe_sriov_pf.c
index 47a6e0fd66e0..33bd754d138f 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf.c
+++ b/drivers/gpu/drm/xe/xe_sriov_pf.c
@@ -20,11 +20,6 @@
 #include "xe_sriov_pf_sysfs.h"
 #include "xe_sriov_printk.h"
 
-static bool wanted_admin_only(struct xe_device *xe)
-{
-	return xe_configfs_admin_only_pf(to_pci_dev(xe->drm.dev));
-}
-
 static unsigned int wanted_max_vfs(struct xe_device *xe)
 {
 	return xe_configfs_get_max_vfs(to_pci_dev(xe->drm.dev));
@@ -79,7 +74,6 @@ bool xe_sriov_pf_readiness(struct xe_device *xe)
 
 	pf_reduce_totalvfs(xe, newlimit);
 
-	xe->sriov.pf.admin_only = wanted_admin_only(xe);
 	xe->sriov.pf.device_total_vfs = totalvfs;
 	xe->sriov.pf.driver_max_vfs = newlimit;
 
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_helpers.h b/drivers/gpu/drm/xe/xe_sriov_pf_helpers.h
index 0fcc6cec4afc..19f6f8331c8d 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_helpers.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_helpers.h
@@ -7,6 +7,7 @@
 #define _XE_SRIOV_PF_HELPERS_H_
 
 #include "xe_assert.h"
+#include "xe_device.h"
 #include "xe_device_types.h"
 #include "xe_sriov.h"
 #include "xe_sriov_types.h"
@@ -57,7 +58,7 @@ static inline unsigned int xe_sriov_pf_num_vfs(const struct xe_device *xe)
 static inline bool xe_sriov_pf_admin_only(const struct xe_device *xe)
 {
 	xe_assert(xe, IS_SRIOV_PF(xe));
-	return xe->sriov.pf.admin_only;
+	return xe_device_is_admin_only(xe);
 }
 
 static inline struct mutex *xe_sriov_pf_master_mutex(struct xe_device *xe)
diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_types.h b/drivers/gpu/drm/xe/xe_sriov_pf_types.h
index 080cf10512f4..b0253e1ae5da 100644
--- a/drivers/gpu/drm/xe/xe_sriov_pf_types.h
+++ b/drivers/gpu/drm/xe/xe_sriov_pf_types.h
@@ -36,9 +36,6 @@ struct xe_sriov_metadata {
  * @XE_SRIOV_MODE_PF mode.
  */
 struct xe_device_pf {
-	/** @admin_only: PF functionality focused on VFs management only. */
-	bool admin_only;
-
 	/** @device_total_vfs: Maximum number of VFs supported by the device. */
 	u16 device_total_vfs;