[PATCH 15/15] drm/xe: Add modparam to enable / disable high SLPC on migrate queue

[Matthew Brost]

Having modparam to enable / disable high SLPC on migrate queue will help
with quick experiments.

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_debugfs.c      | 2 ++
 drivers/gpu/drm/xe/xe_device.c       | 2 ++
 drivers/gpu/drm/xe/xe_device_types.h | 5 +++++
 drivers/gpu/drm/xe/xe_guc_submit.c   | 4 +++-
 drivers/gpu/drm/xe/xe_module.c       | 3 +++
 drivers/gpu/drm/xe/xe_module.h       | 1 +
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c
index d027bda5652f..369e39093010 100644
--- a/drivers/gpu/drm/xe/xe_debugfs.c
+++ b/drivers/gpu/drm/xe/xe_debugfs.c
@@ -60,6 +60,8 @@ static int info(struct seq_file *m, void *data)
 	drm_printf(&p, "vm_max_level %d\n", xe->info.vm_max_level);
 	drm_printf(&p, "force_execlist %s\n", str_yes_no(xe->info.force_execlist));
 	drm_printf(&p, "ulls_enable %s\n", str_yes_no(xe->info.ulls_enable));
+	drm_printf(&p, "high_slpc_migration_queue %s\n",
+		   str_yes_no(xe->info.high_slpc_migration_queue));
 	drm_printf(&p, "has_flat_ccs %s\n", str_yes_no(xe->info.has_flat_ccs));
 	drm_printf(&p, "has_usm %s\n", str_yes_no(xe->info.has_usm));
 	drm_printf(&p, "skip_guc_pc %s\n", str_yes_no(xe->info.skip_guc_pc));
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 8cc88410dfca..13da2da441b7 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -443,6 +443,8 @@ struct xe_device *xe_device_create(struct pci_dev *pdev,
 	xe->info.revid = pdev->revision;
 	xe->info.force_execlist = xe_modparam.force_execlist;
 	xe->info.ulls_enable = xe_modparam.ulls_enable;
+	xe->info.high_slpc_migration_queue =
+		xe_modparam.high_slpc_migration_queue;
 	xe->atomic_svm_timeslice_ms = 5;
 
 	err = xe_irq_init(xe);
diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
index 214a90696615..2cdcb11ae2e1 100644
--- a/drivers/gpu/drm/xe/xe_device_types.h
+++ b/drivers/gpu/drm/xe/xe_device_types.h
@@ -360,6 +360,11 @@ struct xe_device {
 		 * open
 		 */
 		u8 ulls_enable:1;
+		/**
+		 * @info.high_slpc_migration_queue: High SLPC on migration
+		 * queue
+		 */
+		u8 high_slpc_migration_queue:1;
 	} info;
 
 	/** @survivability: survivability information for device */
diff --git a/drivers/gpu/drm/xe/xe_guc_submit.c b/drivers/gpu/drm/xe/xe_guc_submit.c
index 41ac0b41b09b..479f3ad0fd88 100644
--- a/drivers/gpu/drm/xe/xe_guc_submit.c
+++ b/drivers/gpu/drm/xe/xe_guc_submit.c
@@ -437,7 +437,9 @@ static void init_policies(struct xe_guc *guc, struct xe_exec_queue *q)
 
 	xe_gt_assert(guc_to_gt(guc), exec_queue_registered(q));
 
-	if (q->flags & EXEC_QUEUE_FLAG_LOW_LATENCY)
+	if (q->flags & EXEC_QUEUE_FLAG_LOW_LATENCY ||
+	    (guc_to_xe(guc)->info.high_slpc_migration_queue &&
+	     q->flags & EXEC_QUEUE_FLAG_HIGH_PRIORITY))
 		slpc_exec_queue_freq_req |= SLPC_CTX_FREQ_REQ_IS_COMPUTE;
 
 	__guc_exec_queue_policy_start_klv(&policy, q->guc->id);
diff --git a/drivers/gpu/drm/xe/xe_module.c b/drivers/gpu/drm/xe/xe_module.c
index 353bd5a8f02b..1c0c45f50de9 100644
--- a/drivers/gpu/drm/xe/xe_module.c
+++ b/drivers/gpu/drm/xe/xe_module.c
@@ -43,6 +43,9 @@ MODULE_PARM_DESC(probe_display, "Probe display HW, otherwise it's left untouched
 module_param_named(ulls_enable, xe_modparam.ulls_enable, bool, 0444);
 MODULE_PARM_DESC(ulls_enable, "Enable ULLS on migration queue if LR VM open (default: true)");
 
+module_param_named(high_slpc_migration_queue, xe_modparam.high_slpc_migration_queue, bool, 0444);
+MODULE_PARM_DESC(high_slpc_migration_queue, "High SLPC on migration queue (default: false)");
+
 module_param_named(vram_bar_size, xe_modparam.force_vram_bar_size, int, 0600);
 MODULE_PARM_DESC(vram_bar_size, "Set the vram bar size (in MiB) - <0=disable-resize, 0=max-needed-size[default], >0=force-size");
 
diff --git a/drivers/gpu/drm/xe/xe_module.h b/drivers/gpu/drm/xe/xe_module.h
index 8ea69a5b2141..d0afc085f443 100644
--- a/drivers/gpu/drm/xe/xe_module.h
+++ b/drivers/gpu/drm/xe/xe_module.h
@@ -13,6 +13,7 @@ struct xe_modparam {
 	bool force_execlist;
 	bool probe_display;
 	bool ulls_enable;
+	bool high_slpc_migration_queue;
 	u32 force_vram_bar_size;
 	int guc_log_level;
 	char *guc_firmware_path;
-- 
2.34.1