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x86_64/amd64: ACPI support for the AMD64 BSP

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- Implements necessary ACPICA OS Services Layer interfaces;
- Retrieve the RSDP from the FreeBSD Bootloader for amd64 or from multiboot2 for amd64efi;
- Add ACPI initialization routine;
- Use ACPI in bsp_reset.
This commit is contained in:
Matheus Pecoraro
2024-08-06 21:28:15 +00:00
committed by Joel Sherrill
parent bd12e6f0af
commit bb950bd770
17 changed files with 907 additions and 4 deletions
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bsps/x86_64/amd64/acpi/acpi.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPI implementation
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#include <acpi/acpi.h>
#include <acpi/acpica/acpi.h>
#include <rtems/sysinit.h>
uint64_t acpi_rsdp_addr = 0;
static void initialize_acpi(void)
{
ACPI_STATUS status;
status = AcpiInitializeSubsystem();
assert(status == (AE_OK));
status = AcpiInitializeTables(NULL, ACPI_MAX_INIT_TABLES, FALSE);
assert(status == (AE_OK));
status = AcpiLoadTables();
assert(status == (AE_OK));
/* System Control Interrupts not supported */
status = AcpiEnableSubsystem(ACPI_NO_HANDLER_INIT);
assert(status == (AE_OK));
/* General Purpose Events not supported */
status = AcpiInitializeObjects(ACPI_NO_EVENT_INIT);
assert(status == (AE_OK));
}
RTEMS_SYSINIT_ITEM(
initialize_acpi,
RTEMS_SYSINIT_DEVICE_DRIVERS,
RTEMS_SYSINIT_ORDER_MIDDLE
);
bsps/x86_64/amd64/acpi/osl/osl_environment.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPICA OS Services Layer interfaces
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpica/acpi.h>
ACPI_STATUS AcpiOsInitialize(void)
{
return (AE_OK);
}
ACPI_STATUS AcpiOsTerminate(void)
{
return (AE_OK);
}
ACPI_STATUS AcpiOsPredefinedOverride(
const ACPI_PREDEFINED_NAMES* InitVal,
ACPI_STRING* NewVal
)
{
if (InitVal == NULL || NewVal == NULL) {
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
bsps/x86_64/amd64/acpi/osl/osl_hardware.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPICA OS Services Layer interfaces
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpica/acpi.h>
#include <rtems/score/cpu.h>
ACPI_STATUS AcpiOsReadPort(ACPI_IO_ADDRESS InPort, UINT32* Value, UINT32 Width)
{
switch (Width) {
case 8:
*Value = inport_byte((uint16_t) InPort);
break;
case 16:
*Value = inport_word((uint16_t) InPort);
break;
case 32:
*Value = inport_long((uint16_t) InPort);
break;
default:
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
ACPI_STATUS AcpiOsWritePort(ACPI_IO_ADDRESS OutPort, UINT32 Value, UINT32 Width)
{
switch (Width) {
case 8:
outport_byte((uint16_t) OutPort, (uint8_t) Value);
break;
case 16:
outport_word((uint16_t) OutPort, (uint16_t) Value);
break;
case 32:
outport_long((uint16_t) OutPort, Value);
break;
default:
return (AE_BAD_PARAMETER);
}
return (AE_OK);
}
ACPI_STATUS AcpiOsReadPciConfiguration(
ACPI_PCI_ID *PciId,
UINT32 Register,
UINT64 *Value,
UINT32 Width
)
{
return (AE_SUPPORT);
}
ACPI_STATUS AcpiOsWritePciConfiguration(
ACPI_PCI_ID *PciId,
UINT32 Register,
UINT64 Value,
UINT32 Width
)
{
return (AE_SUPPORT);
}
bsps/x86_64/amd64/acpi/osl/osl_interrupts.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPICA OS Services Layer interfaces
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpica/acpi.h>
ACPI_STATUS AcpiOsInstallInterruptHandler(
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine,
void* Context
)
{
/* TODO: We currently don't have I/O APIC support implemented */
return (AE_SUPPORT);
}
ACPI_STATUS AcpiOsRemoveInterruptHandler(
UINT32 InterruptNumber,
ACPI_OSD_HANDLER ServiceRoutine
)
{
/* TODO: We currently don't have I/O APIC support implemented */
return (AE_SUPPORT);
}
bsps/x86_64/amd64/acpi/osl/osl_memory.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPICA OS Services Layer interfaces
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpica/acpi.h>
#include <stdint.h>
void* AcpiOsAllocate(ACPI_SIZE Size)
{
return malloc(Size);
}
void AcpiOsFree(void* Memory)
{
free(Memory);
}
void* AcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length)
{
/* We have an identity map set up, simply return the address */
return (void*) PhysicalAddress;
}
void AcpiOsUnmapMemory(void* LogicalAddress, ACPI_SIZE Length)
{
/* We have an identity map set up, do nothing */
return;
}
ACPI_STATUS AcpiOsGetPhysicalAddress(
void* LogicalAddress,
ACPI_PHYSICAL_ADDRESS* PhysicalAddress
)
{
/* We have an identity map set up, simply return the address */
*PhysicalAddress = (uint64_t) LogicalAddress;
return (AE_OK);
}
BOOLEAN AcpiOsReadable(void* Pointer, ACPI_SIZE Length)
{
return (TRUE);
}
BOOLEAN AcpiOsWritable(void* Pointer, ACPI_SIZE Length)
{
return (TRUE);
}
ACPI_STATUS AcpiOsReadMemory(
ACPI_PHYSICAL_ADDRESS Address,
UINT64* Value,
UINT32 Width
)
{
/* We have an identity map set up, simply use the physical address */
switch (Width) {
case 8:
*Value = *(volatile uint8_t*) Address;
break;
case 16:
*Value = *(volatile uint16_t*) Address;
break;
case 32:
*Value = *(volatile uint32_t*) Address;
break;
case 64:
*Value = *(volatile uint64_t*) Address;
break;
}
return (AE_OK);
}
ACPI_STATUS AcpiOsWriteMemory(
ACPI_PHYSICAL_ADDRESS Address,
UINT64 Value,
UINT32 Width
)
{
/* We have an identity map set up, simply use the physical address */
switch (Width) {
case 8:
*(volatile uint8_t*) Address = (uint8_t) Value;
break;
case 16:
*(volatile uint16_t*) Address = (uint16_t) Value;
break;
case 32:
*(volatile uint32_t*) Address = (uint32_t) Value;
break;
case 64:
*(volatile uint64_t*) Address = (uint64_t) Value;
break;
}
return (AE_OK);
}
bsps/x86_64/amd64/acpi/osl/osl_tables.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPICA OS Services Layer interfaces
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpi.h>
#include <acpi/acpica/acpi.h>
ACPI_PHYSICAL_ADDRESS AcpiOsGetRootPointer(void)
{
return acpi_rsdp_addr;
}
ACPI_STATUS AcpiOsTableOverride(
ACPI_TABLE_HEADER* ExistingTable,
ACPI_TABLE_HEADER** NewTable
)
{
return (AE_SUPPORT);
}
ACPI_STATUS AcpiOsPhysicalTableOverride(
ACPI_TABLE_HEADER* ExistingTable,
ACPI_PHYSICAL_ADDRESS* NewAddress,
UINT32* NewTableLength
)
{
return (AE_SUPPORT);
}
bsps/x86_64/amd64/include/acpi/acpi.h
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief ACPI header file
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _AMD64_ACPI_H_
#define _AMD64_ACPI_H_
#include <bsp.h>
#define ACPI_MAX_INIT_TABLES 16
extern uint64_t acpi_rsdp_addr;
#endif /* _AMD64_ACPI_H_ */
bsps/x86_64/amd64/include/acpi/acpica/platform/acrtems.h
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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ACRTEMS_H__
#define __ACRTEMS_H__
#include <stdint.h>
#define ACPI_MACHINE_WIDTH 64
#define COMPILER_DEPENDENT_INT64 int64_t
#define COMPILER_DEPENDENT_UINT64 uint64_t
#define ACPI_UINTPTR_T uintptr_t
#define ACPI_TO_INTEGER(p) ((uintptr_t)(p))
#define ACPI_OFFSET(d, f) __offsetof(d, f)
#define ACPI_USE_DO_WHILE_0
#define ACPI_USE_LOCAL_CACHE
#define ACPI_USE_NATIVE_DIVIDE
#define ACPI_USE_NATIVE_MATH64
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_STANDARD_HEADERS
#endif /* __ACRTEMS_H__ */
bsps/x86_64/amd64/include/freebsd_loader.h
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@@ -0,0 +1,44 @@
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @brief Routines for parsing information passed by the FreeBSD bootloader
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _AMD64_FREEBSD_LOADER_H
#define _AMD64_FREEBSD_LOADER_H
#include <bsp.h>
/* Will be called by start.S */
void retrieve_info_from_freebsd_loader(uint32_t modules_metadata_addr);
#endif /* _AMD64_FREEBSD_LOADER_H */
bsps/x86_64/amd64/start/bspreset.c
+11 -1
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@@ -5,6 +5,8 @@
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @ingroup RTEMSBSPsX8664AMD64EFI
*
* @brief BSP reset code
*/
@@ -33,13 +35,21 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpica/acpi.h>
#include <bsp/bootcard.h>
#define KEYBOARD_CONTROLLER_PORT 0x64
#define PULSE_RESET_LINE 0xFE
/* TODO: Update this method once APICA is implemented */
void bsp_reset(void)
{
ACPI_STATUS status = AcpiEnterSleepStatePrep(ACPI_STATE_S5);
if (status == AE_OK) {
amd64_disable_interrupts();
AcpiEnterSleepState(ACPI_STATE_S5);
}
/* Should be unreachable. As a fallback try the keyboard controller method */
outport_byte(KEYBOARD_CONTROLLER_PORT, PULSE_RESET_LINE);
}
bsps/x86_64/amd64/start/freebsd_loader.c
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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsX8664AMD64
*
* @brief Routines for parsing information passed by the FreeBSD bootloader
*/
/*
* Copyright (C) 2024 Matheus Pecoraro
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpi.h>
#include <freebsd_loader.h>
#include <stdlib.h>
#include <string.h>
#include <sys/param.h>
#define MODINFO_NAME 0x0001 /* Name of module (string) */
#define MODINFO_TYPE 0x0002 /* Type of module (string) */
#define MODINFOMD_ENVP 0x0006 /* env variables (envp[]) */
#define MODINFO_METADATA 0x8000 /* Module-specfic */
static char* modules_metadata = NULL;
/**
* Retrieves the handle to the metadata of the module.
*
* This routine was taken from sys/kern/subr_module.c in the FreeBSD source code
* and modified for readability and coding convention purposes.
*
* Copyright (c) 1998 Michael Smith
* All rights reserved.
* Copyright (c) 2020 NetApp Inc.
* Copyright (c) 2020 Klara Inc.
*/
static const char* modules_metadata_search_by_type(const char* type)
{
if (modules_metadata != NULL) {
const char* curr_addr = modules_metadata;
const char* last_name = NULL;
for (;;) {
int next;
uint32_t* hdr = (uint32_t*) curr_addr;
if (hdr[0] == 0 && hdr[1] == 0) {
break;
}
/* Remember the start of each record */
if (hdr[0] == MODINFO_NAME) {
last_name = curr_addr;
}
/* Search for a MODINFO_TYPE field */
if ((hdr[0] == MODINFO_TYPE) &&
!strcmp(type, curr_addr + sizeof(uint32_t) * 2))
{
return last_name;
}
/* Skip to next field */
next = sizeof(uint32_t) * 2 + hdr[1];
next = roundup(next, sizeof(u_long));
curr_addr += next;
}
}
return NULL;
}
/**
* Given a module metadata handle return the specified attribute
*
* This routine was taken from sys/kern/subr_module.c in the FreeBSD source code
* and modified for readability and coding convention purposes.
*
* Copyright (c) 1998 Michael Smith
* All rights reserved.
* Copyright (c) 2020 NetApp Inc.
* Copyright (c) 2020 Klara Inc.
*/
static const char* module_metadata_search_info(const char* mod, int info)
{
const char* curr_addr;
uint32_t type = 0;
if (mod == NULL) {
return (NULL);
}
curr_addr = mod;
for (;;) {
uint32_t *hdr;
int next;
hdr = (uint32_t*) curr_addr;
/* End of module data? */
if (hdr[0] == 0 && hdr[1] == 0) {
break;
}
/*
* We give up once we've looped back to what we were looking at
* first - this should normally be a MODINFO_NAME field.
*/
if (type == 0) {
type = hdr[0];
}
else if (hdr[0] == type) {
break;
}
/*
* Attribute match? Return pointer to data.
* Consumer may safely assume that size value precedes data.
*/
if (hdr[0] == info)
return(curr_addr + (sizeof(uint32_t) * 2));
/* Skip to next field */
next = sizeof(uint32_t) * 2 + hdr[1];
next = roundup(next, sizeof(u_long));
curr_addr += next;
}
return NULL;
}
static const char* get_static_env(const char* envp, const char* name)
{
size_t name_len = strlen(name);
while (*envp != '\0') {
if (strncmp(envp, name, name_len) == 0 && envp[name_len] == '=') {
return envp + name_len + 1;
}
while (*envp != '\0') {
envp++;
}
envp++;
}
return NULL;
}
void retrieve_info_from_freebsd_loader(uint32_t modules_metadata_addr)
{
const char* kernel_mod = NULL;
const char* envp = NULL;
const char* rsdp_str = NULL;
long rsdp_addr = 0;
modules_metadata = (char*) ((uint64_t) modules_metadata_addr);
kernel_mod = modules_metadata_search_by_type("elf kernel");
if (kernel_mod == NULL) {
kernel_mod = modules_metadata_search_by_type("elf64 kernel");
}
envp = module_metadata_search_info(kernel_mod, MODINFO_METADATA | MODINFOMD_ENVP);
if (envp != NULL) {
envp = (char*) *((uint64_t*) envp);
}
rsdp_str = get_static_env(envp, "acpi.rsdp");
if (rsdp_str != NULL) {
char* end_ptr;
rsdp_addr = strtol(rsdp_str, &end_ptr, 16);
acpi_rsdp_addr = rsdp_addr;
}
}
bsps/x86_64/amd64/start/multiboot2.c
+14
View File
@@ -33,6 +33,7 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <acpi/acpi.h>
#include <bsp.h>
#include <inttypes.h>
#include <multiboot2.h>
@@ -115,6 +116,19 @@ process_multiboot2_info()
fbtag->common.framebuffer_pitch, fbtag->common.framebuffer_bpp,
fbtag->common.framebuffer_type);
break;
case MULTIBOOT_TAG_TYPE_ACPI_OLD:
if (acpi_rsdp_addr != 0) {
break;
}
struct multiboot_tag_new_acpi* rsdp_old_tag = (struct multiboot_tag_new_acpi*) tag;
printf("Multiboot2: ACPI 1.0 RSDP address: %p\n", rsdp_old_tag->rsdp);
acpi_rsdp_addr = (uint64_t) rsdp_old_tag->rsdp;
break;
case MULTIBOOT_TAG_TYPE_ACPI_NEW:
struct multiboot_tag_new_acpi* rsdp_new_tag = (struct multiboot_tag_new_acpi*) tag;
printf("Multiboot2: ACPI 2.0 RSDP address: %p\n", rsdp_new_tag->rsdp);
acpi_rsdp_addr = (uint64_t) rsdp_new_tag->rsdp;
break;
#ifdef BSP_USE_EFI_BOOT_SERVICES
case MULTIBOOT_TAG_TYPE_EFI64:
printf("EFI64 system table @ 0x%llx\n", ((struct multiboot_tag_efi64 *) tag)->pointer);
bsps/x86_64/amd64/start/start.S
+20 -2
View File
@@ -39,6 +39,7 @@
.type _start, @function
_start:
.cfi_startproc
movq %rsp, %rbp
/*
* _ISR_Stack_area_end is aligned to CPU_INTERRUPT_STACK_ALIGNMENT (64 bits)
* by compiler directive at /cpukit/include/rtems/confdefs/percpu.h
@@ -46,6 +47,22 @@ _start:
* instruction will decrement the %rsp and then save the value of %rip
*/
movabsq $_ISR_Stack_area_end, %rsp
#ifndef BSP_MULTIBOOT_SUPPORT
/**
* The FreeBSD bootloader gives us control with the following stack:
* 0(%rsp) = 32 bit return address (cannot be used)
* 4(%rsp) = 32 bit modulep
* 8(%rsp) = 32 bit kernend
*
* We will extract the necessary info set up by the FreeBSD bootloader
* before dynamic memory is set up since it is stored in memory after
* the kernel
*/
movl 4(%rbp), %edi
call retrieve_info_from_freebsd_loader
#endif
.cfi_def_cfa_offset 16
xorl %edi, %edi
#ifdef BSP_MULTIBOOT_SUPPORT
@@ -96,8 +113,9 @@ info_requests_start:
#else
.long 0
#endif
/* padding to 8 byte tags allignment */
.long 0
.long MULTIBOOT_TAG_TYPE_ACPI_OLD
.long MULTIBOOT_TAG_TYPE_ACPI_NEW
.long 0
info_requests_end:
/* header end*/
.short MULTIBOOT_HEADER_TAG_END
cpukit/score/cpu/x86_64/include/rtems/score/cpu_asm.h
+28
View File
@@ -40,11 +40,39 @@ static inline uint8_t inport_byte(uint16_t port)
return ret;
}
static inline uint16_t inport_word(uint16_t port)
{
uint16_t ret;
__asm__ volatile ( "inw %1, %0"
: "=a" (ret)
: "Nd" (port) );
return ret;
}
static inline uint32_t inport_long(uint16_t port)
{
uint32_t ret;
__asm__ volatile ( "inl %1, %0"
: "=a" (ret)
: "Nd" (port) );
return ret;
}
static inline void outport_byte(uint16_t port, uint8_t val)
{
__asm__ volatile ( "outb %0, %1" : : "a" (val), "Nd" (port) );
}
static inline void outport_word(uint16_t port, uint16_t val)
{
__asm__ volatile ( "outw %0, %1" : : "a" (val), "Nd" (port) );
}
static inline void outport_long(uint16_t port, uint32_t val)
{
__asm__ volatile ( "outl %0, %1" : : "a" (val), "Nd" (port) );
}
static inline uint16_t amd64_get_cs(void)
{
uint16_t segment = 0;
spec/build/bsps/x86_64/amd64/bspamd64.yml
+1
View File
@@ -18,4 +18,5 @@ links:
source:
- bsps/x86_64/amd64/clock/clock.c
- bsps/x86_64/amd64/console/console.c
- bsps/x86_64/amd64/start/freebsd_loader.c
type: build
spec/build/bsps/x86_64/amd64/grp.yml
+2
View File
@@ -24,6 +24,8 @@ links:
uid: ../../objirq
- role: build-dependency
uid: ../../objmem
- role: build-dependency
uid: ../../objacpi
- role: build-dependency
uid: ../../bspopts
type: build
spec/build/bsps/x86_64/amd64/obj.yml
+13 -1
View File
@@ -10,11 +10,17 @@ includes: []
install:
- destination: ${BSP_INCLUDEDIR}
source:
- bsps/x86_64/amd64/include/apic.h
- bsps/x86_64/amd64/include/bsp.h
- bsps/x86_64/amd64/include/clock.h
- bsps/x86_64/amd64/include/freebsd_loader.h
- bsps/x86_64/amd64/include/pic.h
- bsps/x86_64/amd64/include/start.h
- destination: ${BSP_INCLUDEDIR}/acpi
source:
- bsps/x86_64/amd64/include/acpi/acpi.h
- destination: ${BSP_INCLUDEDIR}/acpi/acpica/platform
source:
- bsps/x86_64/amd64/include/acpi/acpica/platform/acrtems.h
- destination: ${BSP_LIBDIR}
source:
- bsps/x86_64/amd64/start/linkcmds
@@ -29,6 +35,12 @@ source:
- bsps/shared/start/bspfatal-default.c
- bsps/shared/start/gettargethash-default.c
- bsps/shared/start/sbrk.c
- bsps/x86_64/amd64/acpi/acpi.c
- bsps/x86_64/amd64/acpi/osl/osl_environment.c
- bsps/x86_64/amd64/acpi/osl/osl_hardware.c
- bsps/x86_64/amd64/acpi/osl/osl_interrupts.c
- bsps/x86_64/amd64/acpi/osl/osl_memory.c
- bsps/x86_64/amd64/acpi/osl/osl_tables.c
- bsps/x86_64/amd64/interrupts/idt.c
- bsps/x86_64/amd64/interrupts/isr_handler.S
- bsps/x86_64/amd64/interrupts/pic.c