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authorRichard Gong <richard.gong@intel.com>2018-11-13 12:14:05 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-26 20:15:07 +0100
commit0d5c06aa0ee8ba36e9c4a3ae7a3a3377c105b412 (patch)
treede5ac2a69d51269d71e60c5be82f9e9b265aed41 /Documentation/driver-api
parente7eef1d7633a875977705d203e6f651893582374 (diff)
downloadlinux-stericsson-0d5c06aa0ee8ba36e9c4a3ae7a3a3377c105b412.tar.gz
Documentation: driver-api: add stratix10 service layer
Add Intel Stratix10 service layer driver document Signed-off-by: Richard Gong <richard.gong@intel.com> Signed-off-by: Alan Tull <atull@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/firmware/other_interfaces.rst30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/driver-api/firmware/other_interfaces.rst b/Documentation/driver-api/firmware/other_interfaces.rst
index 36c47b1e9824..a4ac54b5fd79 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: