Merge tag 'drm-xe-next-2024-10-31' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

UAPI Changes:
- Define and parse OA sync properties (Ashutosh)

Driver Changes:
- Add caller info to xe_gt_reset_async (Nirmoy)
- A large forcewake rework / cleanup (Himal)
- A g2h response timeout fix (Badal)
- A PTL workaround (Vinay)
- Handle unreliable MMIO reads during forcewake (Shuicheng)
- Ufence user-space access fixes (Nirmoy)
- Annotate flexible arrays (Matthew Brost)
- Enable GuC lite restore (Fei)
- Prevent GuC register capture on VF (Zhanjun)
- Show VFs VRAM / LMEM provisioning summary over debugfs (Michal)
- Parallel queues fix on GT reset (Nirmoy)
- Move reference grabbing to a job's dma-fence (Matt Brost)
- Mark a number of local workqueues WQ_MEM_RECLAIM (Matt Brost)
- OA synchronization support (Ashutosh)
- Capture all available bits of GuC timestamp to GuC log (John)
- Increase readability of guc_info debugfs (John)
- Add a mmio barrier before GGTT invalidate (Matt Brost)
- Don't short-circuit TDR on jobs not started (Matt Brost)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZyNvA_vZZYR-1eWE@fedora

1 files changed, 31 insertions, 19 deletions

diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c
index 2b654f820ae2..e8b9faeaef64 100644
--- a/drivers/gpu/drm/xe/xe_guc_pc.c
+++ b/drivers/gpu/drm/xe/xe_guc_pc.c
@@ -415,22 +415,24 @@ u32 xe_guc_pc_get_act_freq(struct xe_guc_pc *pc)
 int xe_guc_pc_get_cur_freq(struct xe_guc_pc *pc, u32 *freq)
 {
 	struct xe_gt *gt = pc_to_gt(pc);
-	int ret;
+	unsigned int fw_ref;
 
 	/*
 	 * GuC SLPC plays with cur freq request when GuCRC is enabled
 	 * Block RC6 for a more reliable read.
 	 */
-	ret = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
-	if (ret)
-		return ret;
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
+	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
+		xe_force_wake_put(gt_to_fw(gt), fw_ref);
+		return -ETIMEDOUT;
+	}
 
 	*freq = xe_mmio_read32(&gt->mmio, RPNSWREQ);
 
 	*freq = REG_FIELD_GET(REQ_RATIO_MASK, *freq);
 	*freq = decode_freq(*freq);
 
-	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
 	return 0;
 }
 
@@ -480,6 +482,7 @@ u32 xe_guc_pc_get_rpn_freq(struct xe_guc_pc *pc)
 int xe_guc_pc_get_min_freq(struct xe_guc_pc *pc, u32 *freq)
 {
 	struct xe_gt *gt = pc_to_gt(pc);
+	unsigned int fw_ref;
 	int ret;
 
 	mutex_lock(&pc->freq_lock);
@@ -493,9 +496,11 @@ int xe_guc_pc_get_min_freq(struct xe_guc_pc *pc, u32 *freq)
 	 * GuC SLPC plays with min freq request when GuCRC is enabled
 	 * Block RC6 for a more reliable read.
 	 */
-	ret = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
-	if (ret)
-		goto out;
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
+	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
+		ret = -ETIMEDOUT;
+		goto fw;
+	}
 
 	ret = pc_action_query_task_state(pc);
 	if (ret)
@@ -504,7 +509,7 @@ int xe_guc_pc_get_min_freq(struct xe_guc_pc *pc, u32 *freq)
 	*freq = pc_get_min_freq(pc);
 
 fw:
-	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
 out:
 	mutex_unlock(&pc->freq_lock);
 	return ret;
@@ -855,6 +860,7 @@ int xe_guc_pc_gucrc_disable(struct xe_guc_pc *pc)
 {
 	struct xe_device *xe = pc_to_xe(pc);
 	struct xe_gt *gt = pc_to_gt(pc);
+	unsigned int fw_ref;
 	int ret = 0;
 
 	if (xe->info.skip_guc_pc)
@@ -864,13 +870,15 @@ int xe_guc_pc_gucrc_disable(struct xe_guc_pc *pc)
 	if (ret)
 		return ret;
 
-	ret = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
-	if (ret)
-		return ret;
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
+	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
+		xe_force_wake_put(gt_to_fw(gt), fw_ref);
+		return -ETIMEDOUT;
+	}
 
 	xe_gt_idle_disable_c6(gt);
 
-	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
 
 	return 0;
 }
@@ -956,13 +964,16 @@ int xe_guc_pc_start(struct xe_guc_pc *pc)
 	struct xe_device *xe = pc_to_xe(pc);
 	struct xe_gt *gt = pc_to_gt(pc);
 	u32 size = PAGE_ALIGN(sizeof(struct slpc_shared_data));
+	unsigned int fw_ref;
 	int ret;
 
 	xe_gt_assert(gt, xe_device_uc_enabled(xe));
 
-	ret = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
-	if (ret)
-		return ret;
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
+	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
+		xe_force_wake_put(gt_to_fw(gt), fw_ref);
+		return -ETIMEDOUT;
+	}
 
 	if (xe->info.skip_guc_pc) {
 		if (xe->info.platform != XE_PVC)
@@ -1005,7 +1016,7 @@ int xe_guc_pc_start(struct xe_guc_pc *pc)
 	ret = pc_action_setup_gucrc(pc, GUCRC_FIRMWARE_CONTROL);
 
 out:
-	XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
 	return ret;
 }
 
@@ -1037,18 +1048,19 @@ static void xe_guc_pc_fini_hw(void *arg)
 {
 	struct xe_guc_pc *pc = arg;
 	struct xe_device *xe = pc_to_xe(pc);
+	unsigned int fw_ref;
 
 	if (xe_device_wedged(xe))
 		return;
 
-	XE_WARN_ON(xe_force_wake_get(gt_to_fw(pc_to_gt(pc)), XE_FORCEWAKE_ALL));
+	fw_ref = xe_force_wake_get(gt_to_fw(pc_to_gt(pc)), XE_FORCEWAKE_ALL);
 	xe_guc_pc_gucrc_disable(pc);
 	XE_WARN_ON(xe_guc_pc_stop(pc));
 
 	/* Bind requested freq to mert_freq_cap before unload */
 	pc_set_cur_freq(pc, min(pc_max_freq_cap(pc), pc->rpe_freq));
 
-	xe_force_wake_put(gt_to_fw(pc_to_gt(pc)), XE_FORCEWAKE_ALL);
+	xe_force_wake_put(gt_to_fw(pc_to_gt(pc)), fw_ref);
 }
 
 /**