Terminology: Replace potentially offensive terms in documentation

In line with the terminology changes proposed by the OpenAMP
Technical Steering committee. Suppress "master and "slave" terms
in comments and documentations.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>

Author: arnopo

README.md

@@ -11,9 +11,9 @@ enable development of software applications for Asymmetric Multiprocessing
    environments
 3. Compatibility with upstream Linux remoteproc and rpmsg components
 4. Following AMP configurations supported
-	a. Linux master/Generic(Baremetal) remote
-	b. Generic(Baremetal) master/Linux remote
-5. Proxy infrastructure and supplied demos showcase ability of proxy on master
+	a. Linux host/Generic(Baremetal) remote
+	b. Generic(Baremetal) host/Linux remote
+5. Proxy infrastructure and supplied demos showcase ability of proxy on host
    to handle printf, scanf, open, close, read, write calls from Bare metal
    based remote contexts.
 
@@ -96,7 +96,7 @@ library for it project:
   enabled on buffers.
 * **RPMSG_BUFFER_SIZE** (default 512): adjust the size of the RPMsg buffers.
   The default value of the RPMsg size is compatible with the Linux Kernel hard
-  coded value. If you AMP configuration is Linux kernel master/ OpenAMP remote,
+  coded value. If you AMP configuration is Linux kernel host/ OpenAMP remote,
   this option must not be used.
 
 ### Example to compile OpenAMP for Zephyr
@@ -264,11 +264,11 @@ The OpenAMP version follows the set of rule proposed in [Semantic Versioning spe
 
 ## Supported System and Machines
 For now, it supports:
-* Zynq generic slave
-* Zynq UltraScale+ MPSoC R5 generic slave
+* Zynq generic remote
+* Zynq UltraScale+ MPSoC R5 generic remote
 * Linux host OpenAMP between Linux userspace processes
-* Linux userspace OpenAMP RPMsg master
-* Linux userspace OpenAMP RPMsg slave
+* Linux userspace OpenAMP RPMsg host
+* Linux userspace OpenAMP RPMsg remote
 * Linux userspace OpenAMP RPMsg and MicroBlaze bare metal remote
 
 ## Known Limitations:

apps/examples/echo/rpmsg-echo.c

@@ -5,7 +5,7 @@
 /*
  * This is a sample demonstration application that showcases usage of rpmsg
  * This application is meant to run on the remote CPU running baremetal code.
- * This application echoes back data that was sent to it by the master core.
+ * This application echoes back data that was sent to it by the host core.
  */
 
 #include <stdio.h>
@@ -41,7 +41,7 @@ static int rpmsg_endpoint_cb(struct rpmsg_endpoint *ept, void *data, size_t len,
 		return RPMSG_SUCCESS;
 	}
 
-	/* Send data back to master */
+	/* Send data back to host */
 	if (rpmsg_send(ept, data, len) < 0) {
 		LPERROR("rpmsg_send failed\r\n");
 	}

apps/examples/echo/rpmsg-ping.c

@@ -5,7 +5,7 @@
 /*
  * This is a sample demonstration application that showcases usage of rpmsg
  * This application is meant to run on the remote CPU running baremetal code.
- * This application echoes back data that was sent to it by the master core.
+ * This application echoes back data that was sent to it by the host core.
  */
 
 #include <stdio.h>

apps/examples/linux_rpc_demo/README.md

@@ -1,8 +1,8 @@
 # linux_rpc_demo
 This readme is about the OpenAMP linux_rpc_demo.
 
-The linux_rpc_demo is about remote procedure calls between linux master and linux
-slave using rpmsg to perform
+The linux_rpc_demo is about remote procedure calls between linux host and linux
+remote using rpmsg to perform
 1. File operations such as open, read, write and close
 2. I/O operation such as printf, scanf
 
@@ -51,7 +51,7 @@ generated to `build/usr/local/bin` directory.
     $ sudo LD_LIBRARY_PATH=<openamp_built>/usr/local/lib:<libmetal_built>/usr/local/lib \
        build-openamp/usr/local/bin/linux_rpc_demo-shared 1
     ```
-Enter the inputs on the master side the same gets printed on the remote side. You will see communication between the master and remote process using rpmsg calls.
+Enter the inputs on the host side the same gets printed on the remote side. You will see communication between the host and remote process using rpmsg calls.
 
 ## Note:
 `sudo` is required to run the OpenAMP demos between Linux processes, as it doesn't work on

apps/examples/linux_rpc_demo/linux_rpc_demo.c

@@ -8,7 +8,7 @@
 /*This is a sample demonstration application that showcases usage of proxy
  *from the remote core.
  *This application is meant to run on the remote CPU running linux.
- *This application can print to the master console and perform file I/O through
+ *This application can print to the host console and perform file I/O through
  *rpmsg channels.
  */
 
@@ -482,10 +482,10 @@ int app(struct rpmsg_device *rdev, void *priv)
 
 	printf("\nRemote>Rpmsg based retargetting to proxy initialized..\r\n");
 
-	/* Remote performing file IO on Master */
+	/* Remote performing file IO on Host */
 	printf("\nRemote>FileIO demo ..\r\n");
 
-	printf("\nRemote>Creating a file on master and writing to it..\r\n");
+	printf("\nRemote>Creating a file on host and writing to it..\r\n");
 	rpmsg_open(fname, REDEF_O_CREAT | REDEF_O_WRONLY | REDEF_O_APPEND,
 		   S_IRUSR | S_IWUSR);
 	printf("\nRemote>Opened file '%s' with fd = %d\r\n", fname, fd);
@@ -496,8 +496,8 @@ int app(struct rpmsg_device *rdev, void *priv)
 	rpmsg_close(fd);
 	printf("\nRemote>Closed fd = %d\r\n", fd);
 
-	/* Remote performing file IO on Master */
-	printf("\nRemote>Reading a file on master and displaying its "
+	/* Remote performing file IO on Host */
+	printf("\nRemote>Reading a file on host and displaying its "
 	"contents..\r\n");
 	rpmsg_open(fname, REDEF_O_RDONLY, S_IRUSR | S_IWUSR);
 	printf("\nRemote>Opened file '%s' with fd = %d\r\n", fname, fd);
@@ -509,10 +509,10 @@ int app(struct rpmsg_device *rdev, void *priv)
 	printf("\nRemote>Closed fd = %d\r\n", fd);
 
 	while (1) {
-		/* Remote performing STDIO on Master */
+		/* Remote performing STDIO on Host */
 		printf("\nRemote>Remote firmware using scanf and printf .."
 		"\r\n");
-		printf("\nRemote>Scanning user input from master..\r\n");
+		printf("\nRemote>Scanning user input from host..\r\n");
 		printf("\nRemote>Enter name\r\n");
 		rpmsg_input(ubuff, sizeof(ubuff));
 		ret = bytes_read;

apps/examples/linux_rpc_demo/linux_rpc_demod.c

@@ -8,7 +8,7 @@
 /*This is a sample demonstration application that showcases usage of proxy
  *from the remote core.
  *This application is meant to run on the remote CPU running linux.
- *This application can print to the master console and perform file I/O through
+ *This application can print to the host console and perform file I/O through
  *rpmsg channels.
  */
 
@@ -32,7 +32,7 @@
 #define REDEF_O_ACCMODE 3
 
 #define raw_printf(format, ...) printf(format, ##__VA_ARGS__)
-#define LPRINTF(format, ...) raw_printf("Master> " format, ##__VA_ARGS__)
+#define LPRINTF(format, ...) raw_printf("Host> " format, ##__VA_ARGS__)
 #define LPERROR(format, ...) LPRINTF("ERROR: " format, ##__VA_ARGS__)
 
 static void *platform;

apps/examples/matrix_multiply/matrix_multiply.c

@@ -5,8 +5,8 @@
 /*
  * This is a sample demonstration application that showcases usage of remoteproc
  * and rpmsg APIs on the remote core. This application is meant to run on the remote CPU
- * running baremetal code. This applicationr receives two matrices from the master,
- * multiplies them and returns the result to the master core.
+ * running baremetal code. This applicationr receives two matrices from the host,
+ * multiplies them and returns the result to the host core.
  */
 
 #include <stdio.h>

apps/examples/matrix_multiply/matrix_multiplyd.c

@@ -5,8 +5,8 @@
 /*
  * This is a sample demonstration application that showcases usage of remoteproc
  * and rpmsg APIs on the remote core. This application is meant to run on the remote CPU
- * running baremetal code. This applicationr receives two matrices from the master,
- * multiplies them and returns the result to the master core.
+ * running baremetal code. This applicationr receives two matrices from the host,
+ * multiplies them and returns the result to the host core.
  */
 
 #include <stdio.h>
@@ -76,7 +76,7 @@ static int rpmsg_endpoint_cb(struct rpmsg_endpoint *ept, void *data, size_t len,
 	/* Process received data and multiple matrices. */
 	Matrix_Multiply(&matrix_array[0], &matrix_array[1], &matrix_result);
 
-	/* Send the result of matrix multiplication back to master. */
+	/* Send the result of matrix multiplication back to host. */
 	if (rpmsg_send(ept, &matrix_result, sizeof(matrix)) < 0) {
 		LPERROR("rpmsg_send failed\r\n");
 	}

apps/examples/nocopy_echo/rpmsg-nocopy-echo.c

@@ -7,7 +7,7 @@
 /*
  * This is a sample demonstration application that showcases usage of rpmsg
  * This application is meant to run on the remote CPU running baremetal code.
- * This application echoes back data that was sent to it by the master core.
+ * This application echoes back data that was sent to it by the host core.
  */
 
 #include <stdio.h>
@@ -111,7 +111,7 @@ int app(struct rpmsg_device *rdev, void *priv)
 			break;
 		}
 		while (rpmsg_list) {
-			/* Send data back to master */
+			/* Send data back to host */
 			ret = rpmsg_send(rpmsg_list->ept, rpmsg_list->data,
 					 rpmsg_list->len);
 			if (ret < 0) {

apps/examples/rpc_demo/rpc_demo.c

@@ -5,7 +5,7 @@
 /*
  * This is a sample demonstration application that showcases usage of proxy from the remote core.
  * This application is meant to run on the remote CPU running baremetal.
- * This application can print to the master console and perform file I/O using proxy mechanism.
+ * This application can print to the host console and perform file I/O using proxy mechanism.
  */
 
 #include <stdio.h>
@@ -69,10 +69,10 @@ int app(struct rpmsg_device *rdev, void *priv)
 
 	printf("\nRemote>Rpmsg based retargetting to proxy initialized..\r\n");
 
-	/* Remote performing file IO on Master */
+	/* Remote performing file IO on Host */
 	printf("\nRemote>FileIO demo ..\r\n");
 
-	printf("\nRemote>Creating a file on master and writing to it..\r\n");
+	printf("\nRemote>Creating a file on host and writing to it..\r\n");
 	fd = open(fname, REDEF_O_CREAT | REDEF_O_WRONLY | REDEF_O_APPEND,
 		  S_IRUSR | S_IWUSR);
 	printf("\nRemote>Opened file '%s' with fd = %d\r\n", fname, fd);
@@ -84,8 +84,8 @@ int app(struct rpmsg_device *rdev, void *priv)
 	close(fd);
 	printf("\nRemote>Closed fd = %d\r\n", fd);
 
-	/* Remote performing file IO on Master */
-	printf("\nRemote>Reading a file on master and displaying its contents..\r\n");
+	/* Remote performing file IO on Host */
+	printf("\nRemote>Reading a file on host and displaying its contents..\r\n");
 	fd = open(fname, REDEF_O_RDONLY, S_IRUSR | S_IWUSR);
 	printf("\nRemote>Opened file '%s' with fd = %d\r\n", fname, fd);
 	bytes_read = read(fd, rbuff, 1024);
@@ -96,9 +96,9 @@ int app(struct rpmsg_device *rdev, void *priv)
 	printf("\nRemote>Closed fd = %d\r\n", fd);
 
 	while (1) {
-		/* Remote performing STDIO on Master */
+		/* Remote performing STDIO on Host */
 		printf("\nRemote>Remote firmware using scanf and printf ..\r\n");
-		printf("\nRemote>Scanning user input from master..\r\n");
+		printf("\nRemote>Scanning user input from host..\r\n");
 		printf("\nRemote>Enter name\r\n");
 		ret = scanf("%s", ubuff);
 		if (ret) {