RPC fixes

Makefile

@@ -22,11 +22,13 @@ SIZE = $(CROSS_COMPILE)size
 
 LINKER_SCRIPT = linker/STM32H747AIIX_FLASH.ld
 
-CFLAGS  = -O2 -Wall -Werror -pedantic -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -std=gnu11 -g3 -ffunction-sections -fdata-sections -fstack-usage
+CFLAGS  = -O2 -Wall -Werror -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -std=gnu11 -g3 -ffunction-sections -fdata-sections -fstack-usage
 CXXFLAGS  = -O2 -Wall -Werror -pedantic -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -std=c++11 -g3 -ffunction-sections -fdata-sections -fstack-usage
 ASFLAGS = -O2 -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -mthumb -c -x assembler-with-cpp -g3 
 LDFLAGS = --specs=nosys.specs -Wl,--gc-sections -static --specs=nano.specs -T$(LINKER_SCRIPT) -Wl,--start-group -lc -lm -Wl,--end-group
 
+CFLAGS += -Wno-variadic-macros -Wno-discarded-qualifiers
+
 TAG_COMMIT := $(shell git rev-list --abbrev-commit --tags --max-count=1)
 TAG := $(shell git describe --abbrev=0 --tags ${TAG_COMMIT} 2>/dev/null || true)
 COMMIT := $(shell git rev-parse --short HEAD)
@@ -48,7 +50,7 @@ DEFINES = \
 	  -DSTM32H747xx \
 	  -DVECT_TAB_SRAM \
 	  -DMETAL_INTERNAL \
-      -DVIRTIO_MASTER_ONLY \
+      -DVIRTIO_DRIVER_ONLY \
       -DNO_ATOMIC_64_SUPPORT \
       -DMETAL_MAX_DEVICE_REGIONS=2 \
       -DRPMSG_BUFFER_SIZE=2000 \

include/debug.h

@@ -22,11 +22,12 @@
 /**************************************************************************************
  * DEFINE
  **************************************************************************************/
+#include <stdio.h>
 
 #ifdef DEBUG
 #define dbg_printf(...)  printf(__VA_ARGS__)
 #else
-#define dbg_printf(...)
+#define dbg_printf(...)  do {} while (0)
 #endif
 
 #endif /* PORTENTAX8_STM32H7_FW_DEBUG_H */

libraries/openamp_arduino/library.properties

@@ -6,5 +6,5 @@ sentence=Enables the communication between H747 cores via shared memory and open
 paragraph=
 category=Communication
 url=
-architectures=mbed,mbed_portenta
+architectures=mbed,mbed_portenta,mbed_nicla,mbed_opta
 dot_a_linkage=true

libraries/openamp_arduino/src/device.c

@@ -5,9 +5,9 @@
  */
 
 #include <string.h>
-#include <metal/errno.h>
 #include <metal/assert.h>
 #include <metal/device.h>
+#include <metal/errno.h>
 #include <metal/list.h>
 #include <metal/log.h>
 #include <metal/sys.h>
@@ -43,11 +43,10 @@ int metal_bus_find(const char *name, struct metal_bus **result)
 
 	metal_list_for_each(&_metal.common.bus_list, node) {
 		bus = metal_container_of(node, struct metal_bus, node);
-		if (strcmp(bus->name, name) != 0)
-			continue;
-		if (result)
+		if (strcmp(bus->name, name) == 0 && result) {
 			*result = bus;
-		return 0;
+			return 0;
+		}
 	}
 	return -ENOENT;
 }
@@ -106,10 +105,10 @@ int metal_generic_dev_open(struct metal_bus *bus, const char *dev_name,
 
 	metal_list_for_each(&_metal.common.generic_device_list, node) {
 		dev = metal_container_of(node, struct metal_device, node);
-		if (strcmp(dev->name, dev_name) != 0)
-			continue;
-		*device = dev;
-		return metal_generic_dev_sys_open(dev);
+		if (strcmp(dev->name, dev_name) == 0) {
+			*device = dev;
+			return metal_generic_dev_sys_open(dev);
+		}
 	}
 
 	return -ENODEV;
@@ -122,9 +121,9 @@ int metal_generic_dev_dma_map(struct metal_bus *bus,
 			     int nents_in,
 			     struct metal_sg *sg_out)
 {
+	int i;
 	(void)bus;
 	(void)device;
-	int i;
 
 	if (sg_out != sg_in)
 		memcpy(sg_out, sg_in, nents_in*(sizeof(struct metal_sg)));
@@ -144,10 +143,10 @@ void metal_generic_dev_dma_unmap(struct metal_bus *bus,
 				 struct metal_sg *sg,
 				 int nents)
 {
+	int i;
 	(void)bus;
 	(void)device;
 	(void)dir;
-	int i;
 
 	for (i = 0; i < nents; i++) {
 		metal_cache_invalidate(sg[i].virt, sg[i].len);

libraries/openamp_arduino/src/dma.c

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2015, Xilinx Inc. and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <metal/errno.h>
+#include <string.h>
+#include <metal/device.h>
+#include <metal/log.h>
+#include <metal/dma.h>
+#include <metal/atomic.h>
+
+int metal_dma_map(struct metal_device *dev,
+		  uint32_t dir,
+		  struct metal_sg *sg_in,
+		  int nents_in,
+		  struct metal_sg *sg_out)
+{
+	int nents_out;
+
+	if (!dev || !sg_in || !sg_out)
+		return -EINVAL;
+	if (!dev->bus->ops.dev_dma_map)
+		return -ENODEV;
+
+	/* memory barrier */
+	if (dir == METAL_DMA_DEV_R)
+		/* If it is device read, apply memory write fence. */
+		atomic_thread_fence(memory_order_release);
+	else
+		/* If it is device write or r/w, apply memory r/w fence. */
+		atomic_thread_fence(memory_order_acq_rel);
+	nents_out = dev->bus->ops.dev_dma_map(dev->bus,
+			dev, dir, sg_in, nents_in, sg_out);
+	return nents_out;
+}
+
+void metal_dma_unmap(struct metal_device *dev,
+		  uint32_t dir,
+		  struct metal_sg *sg,
+		  int nents)
+{
+	/* memory barrier */
+	if (dir == METAL_DMA_DEV_R)
+		/* If it is device read, apply memory write fence. */
+		atomic_thread_fence(memory_order_release);
+	else
+		/*If it is device write or r/w, apply memory r/w fence */
+		atomic_thread_fence(memory_order_acq_rel);
+
+	if (!dev || !dev->bus->ops.dev_dma_unmap || !sg)
+		return;
+	dev->bus->ops.dev_dma_unmap(dev->bus,
+			dev, dir, sg, nents);
+}