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135 | --
-- Copyright (c) 2022-2023, German Rivera
--
--
-- SPDX-License-Identifier: Apache-2.0
--
with HiRTOS.Separation_Kernel.Partition;
with HiRTOS_Platform_Parameters;
with HiRTOS_Cpu_Arch_Parameters;
with System.Storage_Elements;
with Interfaces;
with HiRTOS.Debug; --???
package body App_Partitions is
use System.Storage_Elements;
use type System.Address;
Hello_Partition1_Image_Address : constant System.Address
with Import,
Convention => Asm,
External_Name => "hello_partition1_image_addr";
Hello_Partition1_Image_Size_Bytes : constant System.Storage_Elements.Integer_Address
with Import,
Convention => Asm,
External_Name => "hello_partition1_size";
Hello_Partition1_Load_Address : constant System.Address
with Import,
Convention => Asm,
External_Name => "hello_partition1_load_addr";
Hello_Partition2_Image_Address : constant System.Address
with Import,
Convention => Asm,
External_Name => "hello_partition2_image_addr";
Hello_Partition2_Image_Size_Bytes : constant System.Storage_Elements.Integer_Address
with Import,
Convention => Asm,
External_Name => "hello_partition2_size";
Hello_Partition2_Load_Address : constant System.Address
with Import,
Convention => Asm,
External_Name => "hello_partition2_load_addr";
Per_Partittion_TCM_Size_Bytes : constant := 512 * 1024;
-----------------------------------------------------------------------------
-- Private Subprograms Specifications --
-----------------------------------------------------------------------------
procedure Load_Partition (Image_Address : System.Address;
Image_Size_Bytes : System.Storage_Elements.Integer_Address;
Load_Address : System.Address)
with Pre => Image_Size_Bytes /= 0 and then
Image_Size_Bytes mod HiRTOS_Cpu_Arch_Parameters.Memory_Region_Alignment = 0 and then
Load_Address /= Image_Address and then
To_Integer (Image_Address) mod HiRTOS_Cpu_Arch_Parameters.Memory_Region_Alignment = 0 and then
To_Integer (Load_Address) mod HiRTOS_Cpu_Arch_Parameters.Memory_Region_Alignment = 0 and then
Load_Address >= HiRTOS_Platform_Parameters.Stacks_Section_End_Address;
-----------------------------------------------------------------------------
-- Public Subprograms --
-----------------------------------------------------------------------------
procedure Initialize is
use type HiRTOS.Separation_Kernel.Partition_Id_Type;
Partition1_Id : HiRTOS.Separation_Kernel.Valid_Partition_Id_Type;
Partition2_Id : HiRTOS.Separation_Kernel.Valid_Partition_Id_Type;
Global_Mmio_Region_Size_In_Bytes : constant Integer_Address :=
To_Integer (HiRTOS_Platform_Parameters.Global_Mmio_Region_End_Address) -
To_Integer (HiRTOS_Platform_Parameters.Global_Mmio_Region_Start_Address);
begin
Load_Partition (Hello_Partition1_Image_Address,
Hello_Partition1_Image_Size_Bytes,
Hello_Partition1_Load_Address);
pragma Assert (To_Integer (Hello_Partition2_Load_Address) >=
To_Integer (Hello_Partition1_Load_Address) + Hello_Partition1_Image_Size_Bytes);
Load_Partition (Hello_Partition2_Image_Address,
Hello_Partition2_Image_Size_Bytes,
Hello_Partition2_Load_Address);
HiRTOS.Separation_Kernel.Partition.Create_Partition (
Reset_Handler_Address => Hello_Partition1_Load_Address,
Interrupt_Vector_Table_Address => Hello_Partition1_Load_Address,
TCM_Base_Address => Hello_Partition1_Load_Address,
TCM_Size_In_Bytes => Per_Partittion_TCM_Size_Bytes,
SRAM_Base_Address => System.Null_Address,
SRAM_Size_In_Bytes => 0,
-- TODO: Use only a subrange of MMIO space
MMIO_Base_Address => HiRTOS_Platform_Parameters.Global_Mmio_Region_Start_Address,
MMIO_Size_In_Bytes => Global_Mmio_Region_Size_In_Bytes,
Partition_Id => Partition1_Id);
pragma Assert (Partition1_Id /= HiRTOS.Separation_Kernel.Invalid_Partition_Id);
HiRTOS.Separation_Kernel.Partition.Create_Partition (
Reset_Handler_Address => Hello_Partition2_Load_Address,
Interrupt_Vector_Table_Address => Hello_Partition2_Load_Address,
TCM_Base_Address => Hello_Partition2_Load_Address,
TCM_Size_In_Bytes => Per_Partittion_TCM_Size_Bytes,
SRAM_Base_Address => System.Null_Address,
SRAM_Size_In_Bytes => 0,
-- TODO: Use only a subrange of MMIO space
MMIO_Base_Address => HiRTOS_Platform_Parameters.Global_Mmio_Region_Start_Address,
MMIO_Size_In_Bytes => Global_Mmio_Region_Size_In_Bytes,
Partition_Id => Partition2_Id);
pragma Assert (Partition2_Id /= HiRTOS.Separation_Kernel.Invalid_Partition_Id);
end Initialize;
-----------------------------------------------------------------------------
-- Private Subprograms --
-----------------------------------------------------------------------------
procedure Load_Partition (Image_Address : System.Address;
Image_Size_Bytes : System.Storage_Elements.Integer_Address;
Load_Address : System.Address) is
Num_Words : constant Integer_Address :=
Image_Size_Bytes / (Interfaces.Unsigned_32'Size / System.Storage_Unit);
type Image_Type is array (1 .. Num_Words) of Interfaces.Unsigned_32;
Source_Image : Image_Type with Import, Address => Image_Address;
Dest_Image : Image_Type with Import, Address => Load_Address;
begin
Dest_Image := Source_Image;
end Load_Partition;
end App_Partitions;
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