kernel/0119-fix-check-brother-core-event-queue-empty-when-idle.patch

From 88e91f2bd76b68f5abb0cbefa2cef6a30c8e89af Mon Sep 17 00:00:00 2001
From: liusheng <liusheng@eswincomputing.com>
Date: Thu, 25 Jul 2024 14:11:01 +0800
Subject: [PATCH 119/222] fix:check brother core event queue empty when idle

Changelogs:
1. check brother core event queue empty when try to idle gpu.

Signed-off-by: liusheng <liusheng@eswincomputing.com>
---
 .../media/eswin/hae/hal/kernel/gc_hal_kernel_event.c   | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/eswin/hae/hal/kernel/gc_hal_kernel_event.c b/drivers/staging/media/eswin/hae/hal/kernel/gc_hal_kernel_event.c
index c633d52f53f2..882b453ec897 100644
--- a/drivers/staging/media/eswin/hae/hal/kernel/gc_hal_kernel_event.c
+++ b/drivers/staging/media/eswin/hae/hal/kernel/gc_hal_kernel_event.c
@@ -288,6 +288,14 @@ _TryToIdleGPU(gckEVENT Event)
                         continue;
 
                     if ((1 << i) & broCoreMask) {
+                        gcmkONERROR(gckEVENT_IsEmpty(kernel->eventObj, &empty));
+                        if (!empty) {
+                            /* A brother have events, quit. */
+                            gcmkVERIFY_OK(gckOS_ReleaseMutex(device->os, device->powerMutex));
+                            gcmkFOOTER();
+                            return gcvSTATUS_OK;
+                        }
+
                         status = gckOS_AcquireMutex(hardware->os, hardware->powerMutex, 0);
                         if (status == gcvSTATUS_TIMEOUT) {
                             gcmkVERIFY_OK(gckOS_ReleaseMutex(device->os, device->powerMutex));
@@ -1825,7 +1833,7 @@ gckEVENT_Notify(gckEVENT Event, gctUINT32 IDs, gceEVENT_FAULT *Fault)
 
             /* Clear the BUS ERROR event. */
             if (fault & gcvEVENT_BUS_ERROR_FAULT)
-                pending |= (1 << 31);
+                pending |= (1U << 31);
 
             gckOS_AtomClearMask(Event->pending, pending);
 
-- 
2.47.0