--- zzzz-none-000/linux-4.4.271/drivers/hwtracing/coresight/coresight-priv.h	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/hwtracing/coresight/coresight-priv.h	2023-04-19 10:22:28.000000000 +0000
@@ -1,4 +1,4 @@
-/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2011-2012, 2016 The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -32,7 +32,9 @@
 #define CORESIGHT_DEVTYPE	0xfcc
 
 #define TIMEOUT_US		100
+#define BM(lsb, msb)		((BIT(msb) - BIT(lsb)) + BIT(msb))
 #define BMVAL(val, lsb, msb)	((val & GENMASK(msb, lsb)) >> lsb)
+#define BVAL(val, n)		((val & BIT(n)) >> n)
 
 static inline void CS_LOCK(void __iomem *addr)
 {
@@ -52,6 +54,27 @@
 	} while (0);
 }
 
+static inline bool coresight_authstatus_enabled(void __iomem *addr)
+{
+	int ret;
+	unsigned auth_val;
+
+	if (!addr)
+		return false;
+
+	auth_val = readl_relaxed(addr + CORESIGHT_AUTHSTATUS);
+
+	if ((0x2 == BMVAL(auth_val, 0, 1)) ||
+	    (0x2 == BMVAL(auth_val, 2, 3)) ||
+	    (0x2 == BMVAL(auth_val, 4, 5)) ||
+	    (0x2 == BMVAL(auth_val, 6, 7)))
+		ret = false;
+	else
+		ret = true;
+
+	return ret;
+}
+
 #ifdef CONFIG_CORESIGHT_SOURCE_ETM3X
 extern int etm_readl_cp14(u32 off, unsigned int *val);
 extern int etm_writel_cp14(u32 off, u32 val);
@@ -60,4 +83,17 @@
 static inline int etm_writel_cp14(u32 off, u32 val) { return 0; }
 #endif
 
+#ifdef CONFIG_CORESIGHT_CSR
+extern void msm_qdss_csr_enable_bam_to_usb(void);
+extern void msm_qdss_csr_disable_bam_to_usb(void);
+extern void msm_qdss_csr_disable_flush(void);
+extern int coresight_csr_hwctrl_set(uint64_t addr, uint32_t val);
+#else
+static inline void msm_qdss_csr_enable_bam_to_usb(void) {}
+static inline void msm_qdss_csr_disable_bam_to_usb(void) {}
+static inline void msm_qdss_csr_disable_flush(void) {}
+static inline int coresight_csr_hwctrl_set(uint64_t addr,
+					   uint32_t val) { return -EINVAL; }
+#endif
+
 #endif