Initial commit: TXW82x FPV v2.7.0.7-42229 SDK + project sources

2026-07-06 11:30:13 +08:00
commit e76462eeb7
3451 changed files with 1415300 additions and 0 deletions
--- a/csky/csi_kernel/rhino/arch/riscv/csky_sched.c
+++ b/csky/csi_kernel/rhino/arch/riscv/csky_sched.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2016 YunOS Project. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <k_api.h>
+
+#undef  PSR_SP
+#define PSR_SP  (1UL << 29)
+static ktask_t *tee_caller_task = NULL;
+
+static inline uint32_t getcurrentpsr(void)
+{
+   uint32_t flags = 0;
+
+    __asm__ __volatile__(
+        "ebreak\n" /* TODO */
+    );
+
+   return flags;
+}
+
+static inline void clear_psr_sp(void)
+{
+    __asm__ __volatile__ (
+        "ebreak\n" /* TODO */
+    );
+}
+
+static inline void set_psr_sp(void)
+{
+    __asm__ __volatile__ (
+        "ebreak\n" /* TODO */
+    );
+}
+
+void csky_get_tee_caller_task(void)
+{
+    uint32_t temp_psr;
+
+    temp_psr = getcurrentpsr();
+    if (temp_psr & PSR_SP) {
+       tee_caller_task = (tee_caller_task == NULL) ? g_active_task[cpu_cur_get()] : tee_caller_task;
+    }
+}
+
+void csky_deal_tee_caller_task(void)
+{
+    uint32_t temp_psr;
+
+    temp_psr = getcurrentpsr();
+    if (temp_psr & PSR_SP) {
+        if (tee_caller_task != NULL) {
+            if (tee_caller_task == g_active_task[cpu_cur_get()]) {
+                tee_caller_task = NULL;
+            } else {
+                clear_psr_sp();
+            }
+        }
+    } else {
+        if (tee_caller_task != NULL) {
+            if (tee_caller_task == g_active_task[cpu_cur_get()]) {
+                tee_caller_task = NULL;
+                set_psr_sp();
+            }
+        }
+    }
+}