From: Wendy Liang <wendy.liang@xxxxxxxxxx>
Add a resource entry to the resource table to tells the host the remote
processor's memory which can be used as shared memory.
Signed-off-by: Wendy Liang <jliang@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
include/linux/remoteproc.h | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 81da495..799f041 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -115,7 +115,8 @@ enum fw_resource_type {
RSC_DEVMEM = 1,
RSC_TRACE = 2,
RSC_VDEV = 3,
- RSC_LAST = 4,
+ RSC_RPROC_MEM = 4,
+ RSC_LAST = 5,
};
#define FW_RSC_ADDR_ANY (-1)
@@ -306,6 +307,26 @@ struct fw_rsc_vdev {
} __packed;
/**
+ * struct fw_rsc_rproc_mem - remote processor memory
+ * @da: device address
+ * @pa: physical address
+ * @len: length (in bytes)
+ * @reserved: reserved (must be zero)
+ *
+ * This resource entry tells the host to the remote processor
+ * memory that the host can be used as shared memory.
+ *
+ * These request entries should precede other shared resource entries
+ * such as vdevs, vrings.
+ */
+struct fw_rsc_rproc_mem {
+ u32 da;
+ u32 pa;
+ u32 len;
+ u32 reserved;
+} __packed;
+
+/**
* struct rproc_mem_entry - memory entry descriptor
* @va: virtual address
* @dma: dma address
--
1.9.1
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