Some platforms (like sa8775p) feature one or more GPDSPs (General
Purpose DSPs). Similar to other kinds of Hexagon DSPs, they provide
a FastRPC implementation, allowing code execution in both signed and
unsigned protection domains. Extend the checks to allow domain names
starting with "gdsp" (possibly followed by an index).
Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@oss.qualcomm.com>
Signed-off-by: Ling Xu <quic_l...@quicinc.com>
---
drivers/misc/fastrpc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 85b6eb16b616..d05969de406e 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -27,6 +27,7 @@
#define MDSP_DOMAIN_ID (1)
#define SDSP_DOMAIN_ID (2)
#define CDSP_DOMAIN_ID (3)
+#define GDSP_DOMAIN_ID (4)
#define FASTRPC_MAX_SESSIONS 14
#define FASTRPC_MAX_VMIDS 16
#define FASTRPC_ALIGN 128
@@ -2249,6 +2250,8 @@ static int fastrpc_get_domain_id(const char *domain)
return MDSP_DOMAIN_ID;
else if (!strncmp(domain, "sdsp", 4))
return SDSP_DOMAIN_ID;
+ else if (!strncmp(domain, "gdsp", 4))
+ return GDSP_DOMAIN_ID;
return -EINVAL;
}
@@ -2323,13 +2326,14 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device
*rpdev)
case ADSP_DOMAIN_ID:
case MDSP_DOMAIN_ID:
case SDSP_DOMAIN_ID:
- /* Unsigned PD offloading is only supported on CDSP */
+ /* Unsigned PD offloading is only supported on CDSP and GDSP */
data->unsigned_support = false;
err = fastrpc_device_register(rdev, data, secure_dsp, domain);
if (err)
goto err_free_data;
break;
case CDSP_DOMAIN_ID:
+ case GDSP_DOMAIN_ID:
data->unsigned_support = true;
/* Create both device nodes so that we can allow both Signed
and Unsigned PD */
err = fastrpc_device_register(rdev, data, true, domain);
--
2.34.1
