From: Richard Gong <richard.gong@xxxxxxxxx>
Add Intel Stratix10 service layer driver document
Signed-off-by: Richard Gong <richard.gong@xxxxxxxxx>
Signed-off-by: Alan Tull <atull@xxxxxxxxxx>
---
v5: this patch is added in patch set version 5,
add new file stratix10-svc.rst
add stratix10-svc.rst to driver-api/index.rst
v6: no change
v7: no change
v8: no change
v9: no change
v10: add stratix10 service layer document to other firmware
interface, and then remove stratix10-svc.rst file
v11: no change
---
.../driver-api/firmware/other_interfaces.rst | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/Documentation/driver-api/firmware/other_interfaces.rst b/Documentation/driver-api/firmware/other_interfaces.rst
index 36c47b1..a4ac54b 100644
--- a/Documentation/driver-api/firmware/other_interfaces.rst
+++ b/Documentation/driver-api/firmware/other_interfaces.rst
@@ -13,3 +13,33 @@ EDD Interfaces
.. kernel-doc:: drivers/firmware/edd.c
:internal:
+Intel Stratix10 SoC Service Layer
+---------------------------------
+Some features of the Intel Stratix10 SoC require a level of privilege
+higher than the kernel is granted. Such secure features include
+FPGA programming. In terms of the ARMv8 architecture, the kernel runs
+at Exception Level 1 (EL1), access to the features requires
+Exception Level 3 (EL3).
+
+The Intel Stratix10 SoC service layer provides an in kernel API for
+drivers to request access to the secure features. The requests are queued
+and processed one by one. ARM’s SMCCC is used to pass the execution
+of the requests on to a secure monitor (EL3).
+
+.. kernel-doc:: include/linux/firmware/intel/stratix10-svc-client.h
+ :functions: stratix10_svc_command_code
+
+.. kernel-doc:: include/linux/firmware/intel/stratix10-svc-client.h
+ :functions: stratix10_svc_client_msg
+
+.. kernel-doc:: include/linux/firmware/intel/stratix10-svc-client.h
+ :functions: stratix10_svc_command_reconfig_payload
+
+.. kernel-doc:: include/linux/firmware/intel/stratix10-svc-client.h
+ :functions: stratix10_svc_cb_data
+
+.. kernel-doc:: include/linux/firmware/intel/stratix10-svc-client.h
+ :functions: stratix10_svc_client
+
+.. kernel-doc:: drivers/firmware/stratix10-svc.c
+ :export:
--
2.7.4
