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docs(versal-net): update SMC convention

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Updated documentation for SMC SiP calling conventions for IPI,
PM, and SiP Service queries.

Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: I4bd71dd8e16c7adf3f9c5cb202f36aa2e275d03a
This commit is contained in:
Prasad Kummari 2024-02-08 17:30:51 +05:30
parent d8dc1cfa6f
commit 59621c7149
1 changed files with 43 additions and 0 deletions
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docs/plat/xilinx-versal-net.rst
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@ -53,3 +53,46 @@ Xilinx Versal NET platform specific build options
- `5` : SGI 5
- `6` : SGI 6 (Default)
- `7` : SGI 7
Reference DEN0028E SMC calling convention
------------------------------------------
Allocated subranges of Function Identifier to SIP services
-----------------------------------------------------------
+-----------------------+-------------------------------------------------------+
| SMC Function | Identifier Service type |
+-----------------------+------------------------------+------------------------+
| 0xC2000000-0xC200FFFF | Fast SMC64 SiP Service Calls as per SMCCC Section 6.1 |
+-----------------------+-------------------------------------------------------+
IPI SMC call ranges
-------------------------------------------------------------
+---------------------------+-----------------------------------------------------------+
| SMC Function Identifier | Service type |
+---------------------------+-----------------------------------------------------------+
| 0xc2001000-0xc2001FFF | Fast SMC64 SiP Service call range used for AMD-Xilinx IPI |
+---------------------------+-----------------------------------------------------------+
PM SMC call ranges
--------------------------------------------------------
+---------------------------+---------------------------------------------------------------------------+
| SMC Function Identifier | Service type |
+---------------------------+---------------------------------------------------------------------------+
| 0xc2000000-0xc2000FFF | Fast SMC64 SiP Service call range used for AMD-Xilinx Platform Management |
+---------------------------+---------------------------------------------------------------------------+
SMC function IDs for SiP Service queries
----------------------------------------------
+--------------+--------------+--------------+
| Service | Call UID | Revision |
+--------------+--------------+--------------+
| SiP Service | 0x8200_FF01 | 0x8200_FF03 |
+--------------+--------------+--------------+
Call UID Query – Returns a unique identifier of the service provider.
Revision Query – Returns revision details of the service implementor.