[PATCH 04/11] misc: fastrpc: Add reserved mem support

Srinivas Kandagatla posted 11 patches 2 months, 1 week ago
There is a newer version of this series
[PATCH 04/11] misc: fastrpc: Add reserved mem support
Posted by Srinivas Kandagatla 2 months, 1 week ago
From: Abel Vesa <abel.vesa@linaro.org>

The reserved mem support is needed for CMA heap support, which will be
used by AUDIOPD.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
 drivers/misc/fastrpc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 545b7dea68bc..86d11ffadf29 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -20,6 +20,7 @@
 #include <linux/slab.h>
 #include <linux/qcom_scm.h>
 #include <uapi/misc/fastrpc.h>
+#include <linux/of_reserved_mem.h>
 
 #define ADSP_DOMAIN_ID (0)
 #define MDSP_DOMAIN_ID (1)
@@ -2071,6 +2072,9 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
 		return -EINVAL;
 	}
 
+	if (of_reserved_mem_device_init_by_idx(rdev, rdev->of_node, 0))
+		dev_info(rdev, "no reserved DMA memory for FASTRPC\n");
+
 	vmcount = of_property_read_variable_u32_array(rdev->of_node,
 				"qcom,vmids", &vmids[0], 0, FASTRPC_MAX_VMIDS);
 	if (vmcount < 0)
-- 
2.25.1