diff options
Diffstat (limited to 'drivers/acpi/acpica/rsaddr.c')
| -rw-r--r-- | drivers/acpi/acpica/rsaddr.c | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/rsaddr.c b/drivers/acpi/acpica/rsaddr.c new file mode 100644 index 0000000000..fff48001d7 --- /dev/null +++ b/drivers/acpi/acpica/rsaddr.c @@ -0,0 +1,351 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/******************************************************************************* + * + * Module Name: rsaddr - Address resource descriptors (16/32/64) + * + ******************************************************************************/ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acresrc.h" + +#define _COMPONENT ACPI_RESOURCES +ACPI_MODULE_NAME("rsaddr") + +/******************************************************************************* + * + * acpi_rs_convert_address16 - All WORD (16-bit) address resources + * + ******************************************************************************/ +struct acpi_rsconvert_info acpi_rs_convert_address16[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS16, + ACPI_RS_SIZE(struct acpi_resource_address16), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address16)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS16, + sizeof(struct aml_resource_address16), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.address16.address.granularity), + AML_OFFSET(address16.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address16.resource_source), + 0, + sizeof(struct aml_resource_address16)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_address32 - All DWORD (32-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_address32[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS32, + ACPI_RS_SIZE(struct acpi_resource_address32), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address32)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS32, + sizeof(struct aml_resource_address32), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.address32.address.granularity), + AML_OFFSET(address32.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address32.resource_source), + 0, + sizeof(struct aml_resource_address32)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_address64 - All QWORD (64-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_address64)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_ADDRESS64, + sizeof(struct aml_resource_address64), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + */ + {ACPI_RSC_MOVE64, ACPI_RS_OFFSET(data.address64.address.granularity), + AML_OFFSET(address64.granularity), + 5}, + + /* Optional resource_source (Index and String) */ + + {ACPI_RSC_SOURCE, ACPI_RS_OFFSET(data.address64.resource_source), + 0, + sizeof(struct aml_resource_address64)} +}; + +/******************************************************************************* + * + * acpi_rs_convert_ext_address64 - All Extended (64-bit) address resources + * + ******************************************************************************/ + +struct acpi_rsconvert_info acpi_rs_convert_ext_address64[5] = { + {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, + ACPI_RS_SIZE(struct acpi_resource_extended_address64), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_ext_address64)}, + + {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64, + sizeof(struct aml_resource_extended_address64), + 0}, + + /* Resource Type, General Flags, and Type-Specific Flags */ + + {ACPI_RSC_ADDRESS, 0, 0, 0}, + + /* Revision ID */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.ext_address64.revision_ID), + AML_OFFSET(ext_address64.revision_ID), + 1}, + /* + * These fields are contiguous in both the source and destination: + * Address Granularity + * Address Range Minimum + * Address Range Maximum + * Address Translation Offset + * Address Length + * Type-Specific Attribute + */ + {ACPI_RSC_MOVE64, + ACPI_RS_OFFSET(data.ext_address64.address.granularity), + AML_OFFSET(ext_address64.granularity), + 6} +}; + +/******************************************************************************* + * + * acpi_rs_convert_general_flags - Flags common to all address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_general_flags[6] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_general_flags)}, + + /* Resource Type (Memory, Io, bus_number, etc.) */ + + {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.address.resource_type), + AML_OFFSET(address.resource_type), + 1}, + + /* General flags - Consume, Decode, min_fixed, max_fixed */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.producer_consumer), + AML_OFFSET(address.flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.decode), + AML_OFFSET(address.flags), + 1}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.min_address_fixed), + AML_OFFSET(address.flags), + 2}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.max_address_fixed), + AML_OFFSET(address.flags), + 3} +}; + +/******************************************************************************* + * + * acpi_rs_convert_mem_flags - Flags common to Memory address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_mem_flags[5] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_mem_flags)}, + + /* Memory-specific flags */ + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.write_protect), + AML_OFFSET(address.specific_flags), + 0}, + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.caching), + AML_OFFSET(address.specific_flags), + 1}, + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.range_type), + AML_OFFSET(address.specific_flags), + 3}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.mem.translation), + AML_OFFSET(address.specific_flags), + 5} +}; + +/******************************************************************************* + * + * acpi_rs_convert_io_flags - Flags common to I/O address descriptors + * + ******************************************************************************/ + +static struct acpi_rsconvert_info acpi_rs_convert_io_flags[4] = { + {ACPI_RSC_FLAGINIT, 0, AML_OFFSET(address.specific_flags), + ACPI_RSC_TABLE_SIZE(acpi_rs_convert_io_flags)}, + + /* I/O-specific flags */ + + {ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.address.info.io.range_type), + AML_OFFSET(address.specific_flags), + 0}, + + {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.address.info.io.translation), + AML_OFFSET(address.specific_flags), + 4}, + + {ACPI_RSC_1BITFLAG, + ACPI_RS_OFFSET(data.address.info.io.translation_type), + AML_OFFSET(address.specific_flags), + 5} +}; + +/******************************************************************************* + * + * FUNCTION: acpi_rs_get_address_common + * + * PARAMETERS: resource - Pointer to the internal resource struct + * aml - Pointer to the AML resource descriptor + * + * RETURN: TRUE if the resource_type field is OK, FALSE otherwise + * + * DESCRIPTION: Convert common flag fields from a raw AML resource descriptor + * to an internal resource descriptor + * + ******************************************************************************/ + +u8 +acpi_rs_get_address_common(struct acpi_resource *resource, + union aml_resource *aml) +{ + struct aml_resource_address address; + + ACPI_FUNCTION_ENTRY(); + + /* Avoid undefined behavior: member access within misaligned address */ + + memcpy(&address, aml, sizeof(address)); + + /* Validate the Resource Type */ + + if ((address.resource_type > 2) && (address.resource_type < 0xC0)) { + return (FALSE); + } + + /* Get the Resource Type and General Flags */ + + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_general_flags); + + /* Get the Type-Specific Flags (Memory and I/O descriptors only) */ + + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_aml_to_resource(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just grab the type_specific byte */ + + resource->data.address.info.type_specific = + address.specific_flags; + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_set_address_common + * + * PARAMETERS: aml - Pointer to the AML resource descriptor + * resource - Pointer to the internal resource struct + * + * RETURN: None + * + * DESCRIPTION: Convert common flag fields from a resource descriptor to an + * AML descriptor + * + ******************************************************************************/ + +void +acpi_rs_set_address_common(union aml_resource *aml, + struct acpi_resource *resource) +{ + ACPI_FUNCTION_ENTRY(); + + /* Set the Resource Type and General Flags */ + + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_general_flags); + + /* Set the Type-Specific Flags (Memory and I/O descriptors only) */ + + if (resource->data.address.resource_type == ACPI_MEMORY_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_mem_flags); + } else if (resource->data.address.resource_type == ACPI_IO_RANGE) { + (void)acpi_rs_convert_resource_to_aml(resource, aml, + acpi_rs_convert_io_flags); + } else { + /* Generic resource type, just copy the type_specific byte */ + + aml->address.specific_flags = + resource->data.address.info.type_specific; + } +} |