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Diffstat (limited to 'drivers/acpi/resources/rsmemory.c')
-rw-r--r--drivers/acpi/resources/rsmemory.c472
1 files changed, 143 insertions, 329 deletions
diff --git a/drivers/acpi/resources/rsmemory.c b/drivers/acpi/resources/rsmemory.c
index 418f1afb10a3..47e979e7ba35 100644
--- a/drivers/acpi/resources/rsmemory.c
+++ b/drivers/acpi/resources/rsmemory.c
@@ -49,446 +49,260 @@ ACPI_MODULE_NAME("rsmemory")
/*******************************************************************************
*
- * FUNCTION: acpi_rs_memory24_resource
+ * FUNCTION: acpi_rs_get_memory24
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
*
******************************************************************************/
acpi_status
-acpi_rs_memory24_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+acpi_rs_get_memory24(union aml_resource * aml,
+ u16 aml_resource_length, struct acpi_resource * resource)
{
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem24);
+ ACPI_FUNCTION_TRACE("rs_get_memory24");
- ACPI_FUNCTION_TRACE("rs_memory24_resource");
+ /* Get the Read/Write bit */
- /* Point past the Descriptor to get the number of bytes consumed */
+ resource->data.memory24.read_write_attribute =
+ (aml->memory24.information & 0x01);
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
-
- buffer += 2;
- *bytes_consumed = (acpi_size) temp16 + 3;
- output_struct->type = ACPI_RSTYPE_MEM24;
-
- /* Check Byte 3 the Read/Write bit */
-
- temp8 = *buffer;
- buffer += 1;
- output_struct->data.memory24.read_write_attribute = temp8 & 0x01;
-
- /* Get min_base_address (Bytes 4-5) */
-
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- buffer += 2;
- output_struct->data.memory24.min_base_address = temp16;
-
- /* Get max_base_address (Bytes 6-7) */
-
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- buffer += 2;
- output_struct->data.memory24.max_base_address = temp16;
-
- /* Get Alignment (Bytes 8-9) */
-
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- buffer += 2;
- output_struct->data.memory24.alignment = temp16;
-
- /* Get range_length (Bytes 10-11) */
-
- ACPI_MOVE_16_TO_16(&temp16, buffer);
- output_struct->data.memory24.range_length = temp16;
-
- /* Set the Length parameter */
-
- output_struct->length = (u32) struct_size;
+ /*
+ * Get the following contiguous fields from the AML descriptor:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
+ */
+ acpi_rs_move_data(&resource->data.memory24.minimum,
+ &aml->memory24.minimum, 4, ACPI_MOVE_TYPE_16_TO_32);
- /* Return the final size of the structure */
+ /* Complete the resource header */
- *structure_size = struct_size;
+ resource->type = ACPI_RESOURCE_TYPE_MEMORY24;
+ resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory24);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_memory24_stream
+ * FUNCTION: acpi_rs_set_memory24
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_memory24_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_set_memory24(struct acpi_resource *resource, union aml_resource *aml)
{
- u8 *buffer = *output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
-
- ACPI_FUNCTION_TRACE("rs_memory24_stream");
-
- /* The Descriptor Type field is static */
-
- *buffer = ACPI_RDESC_TYPE_MEMORY_24;
- buffer += 1;
-
- /* The length field is static */
-
- temp16 = 0x09;
- ACPI_MOVE_16_TO_16(buffer, &temp16);
- buffer += 2;
+ ACPI_FUNCTION_TRACE("rs_set_memory24");
/* Set the Information Byte */
- temp8 = (u8) (resource->data.memory24.read_write_attribute & 0x01);
- *buffer = temp8;
- buffer += 1;
-
- /* Set the Range minimum base address */
+ aml->memory24.information = (u8)
+ (resource->data.memory24.read_write_attribute & 0x01);
- ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.min_base_address);
- buffer += 2;
-
- /* Set the Range maximum base address */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.max_base_address);
- buffer += 2;
-
- /* Set the base alignment */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.alignment);
- buffer += 2;
-
- /* Set the range length */
-
- ACPI_MOVE_32_TO_16(buffer, &resource->data.memory24.range_length);
- buffer += 2;
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
+ */
+ acpi_rs_move_data(&aml->memory24.minimum,
+ &resource->data.memory24.minimum, 4,
+ ACPI_MOVE_TYPE_32_TO_16);
- /* Return the number of bytes consumed in this operation */
+ /* Complete the AML descriptor header */
- *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_MEMORY24,
+ sizeof(struct aml_resource_memory24), aml);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_memory32_range_resource
+ * FUNCTION: acpi_rs_get_memory32
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
*
******************************************************************************/
acpi_status
-acpi_rs_memory32_range_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+acpi_rs_get_memory32(union aml_resource *aml,
+ u16 aml_resource_length, struct acpi_resource *resource)
{
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_mem32);
-
- ACPI_FUNCTION_TRACE("rs_memory32_range_resource");
+ ACPI_FUNCTION_TRACE("rs_get_memory32");
- /* Point past the Descriptor to get the number of bytes consumed */
+ /* Get the Read/Write bit */
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
-
- buffer += 2;
- *bytes_consumed = (acpi_size) temp16 + 3;
- output_struct->type = ACPI_RSTYPE_MEM32;
+ resource->data.memory32.read_write_attribute =
+ (aml->memory32.information & 0x01);
/*
- * Point to the place in the output buffer where the data portion will
- * begin.
- * 1. Set the RESOURCE_DATA * Data to point to its own address, then
- * 2. Set the pointer to the next address.
- *
- * NOTE: output_struct->Data is cast to u8, otherwise, this addition adds
- * 4 * sizeof(RESOURCE_DATA) instead of 4 * sizeof(u8)
+ * Get the following contiguous fields from the AML descriptor:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
*/
+ acpi_rs_move_data(&resource->data.memory32.minimum,
+ &aml->memory32.minimum, 4, ACPI_MOVE_TYPE_32_TO_32);
- /* Check Byte 3 the Read/Write bit */
-
- temp8 = *buffer;
- buffer += 1;
-
- output_struct->data.memory32.read_write_attribute = temp8 & 0x01;
-
- /* Get min_base_address (Bytes 4-7) */
-
- ACPI_MOVE_32_TO_32(&output_struct->data.memory32.min_base_address,
- buffer);
- buffer += 4;
-
- /* Get max_base_address (Bytes 8-11) */
-
- ACPI_MOVE_32_TO_32(&output_struct->data.memory32.max_base_address,
- buffer);
- buffer += 4;
-
- /* Get Alignment (Bytes 12-15) */
-
- ACPI_MOVE_32_TO_32(&output_struct->data.memory32.alignment, buffer);
- buffer += 4;
-
- /* Get range_length (Bytes 16-19) */
-
- ACPI_MOVE_32_TO_32(&output_struct->data.memory32.range_length, buffer);
-
- /* Set the Length parameter */
+ /* Complete the resource header */
- output_struct->length = (u32) struct_size;
-
- /* Return the final size of the structure */
-
- *structure_size = struct_size;
+ resource->type = ACPI_RESOURCE_TYPE_MEMORY32;
+ resource->length = ACPI_SIZEOF_RESOURCE(struct acpi_resource_memory32);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_fixed_memory32_resource
+ * FUNCTION: acpi_rs_set_memory32
*
- * PARAMETERS: byte_stream_buffer - Pointer to the resource input byte
- * stream
- * bytes_consumed - Pointer to where the number of bytes
- * consumed the byte_stream_buffer is
- * returned
- * output_buffer - Pointer to the return data buffer
- * structure_size - Pointer to where the number of bytes
- * in the return data struct is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the resource byte stream and fill out the appropriate
- * structure pointed to by the output_buffer. Return the
- * number of bytes consumed from the byte stream.
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_fixed_memory32_resource(u8 * byte_stream_buffer,
- acpi_size * bytes_consumed,
- u8 ** output_buffer, acpi_size * structure_size)
+acpi_rs_set_memory32(struct acpi_resource *resource, union aml_resource *aml)
{
- u8 *buffer = byte_stream_buffer;
- struct acpi_resource *output_struct = (void *)*output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
- acpi_size struct_size =
- ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_mem32);
-
- ACPI_FUNCTION_TRACE("rs_fixed_memory32_resource");
-
- /* Point past the Descriptor to get the number of bytes consumed */
-
- buffer += 1;
- ACPI_MOVE_16_TO_16(&temp16, buffer);
-
- buffer += 2;
- *bytes_consumed = (acpi_size) temp16 + 3;
- output_struct->type = ACPI_RSTYPE_FIXED_MEM32;
-
- /* Check Byte 3 the Read/Write bit */
-
- temp8 = *buffer;
- buffer += 1;
- output_struct->data.fixed_memory32.read_write_attribute = temp8 & 0x01;
-
- /* Get range_base_address (Bytes 4-7) */
-
- ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32.
- range_base_address, buffer);
- buffer += 4;
-
- /* Get range_length (Bytes 8-11) */
+ ACPI_FUNCTION_TRACE("rs_set_memory32");
- ACPI_MOVE_32_TO_32(&output_struct->data.fixed_memory32.range_length,
- buffer);
+ /* Set the Information Byte */
- /* Set the Length parameter */
+ aml->memory32.information = (u8)
+ (resource->data.memory32.read_write_attribute & 0x01);
- output_struct->length = (u32) struct_size;
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Minimum Base Address
+ * Maximum Base Address
+ * Address Base Alignment
+ * Range Length
+ */
+ acpi_rs_move_data(&aml->memory32.minimum,
+ &resource->data.memory32.minimum, 4,
+ ACPI_MOVE_TYPE_32_TO_32);
- /* Return the final size of the structure */
+ /* Complete the AML descriptor header */
- *structure_size = struct_size;
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_MEMORY32,
+ sizeof(struct aml_resource_memory32), aml);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_memory32_range_stream
+ * FUNCTION: acpi_rs_get_fixed_memory32
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Aml - Pointer to the AML resource descriptor
+ * aml_resource_length - Length of the resource from the AML header
+ * Resource - Where the internal resource is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert a raw AML resource descriptor to the corresponding
+ * internal resource descriptor, simplifying bitflags and handling
+ * alignment and endian issues if necessary.
*
******************************************************************************/
acpi_status
-acpi_rs_memory32_range_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_get_fixed_memory32(union aml_resource *aml,
+ u16 aml_resource_length,
+ struct acpi_resource *resource)
{
- u8 *buffer = *output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
-
- ACPI_FUNCTION_TRACE("rs_memory32_range_stream");
-
- /* The Descriptor Type field is static */
+ ACPI_FUNCTION_TRACE("rs_get_fixed_memory32");
- *buffer = ACPI_RDESC_TYPE_MEMORY_32;
- buffer += 1;
-
- /* The length field is static */
-
- temp16 = 0x11;
-
- ACPI_MOVE_16_TO_16(buffer, &temp16);
- buffer += 2;
-
- /* Set the Information Byte */
+ /* Get the Read/Write bit */
- temp8 = (u8) (resource->data.memory32.read_write_attribute & 0x01);
- *buffer = temp8;
- buffer += 1;
+ resource->data.fixed_memory32.read_write_attribute =
+ (aml->fixed_memory32.information & 0x01);
- /* Set the Range minimum base address */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.min_base_address);
- buffer += 4;
-
- /* Set the Range maximum base address */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.max_base_address);
- buffer += 4;
-
- /* Set the base alignment */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.alignment);
- buffer += 4;
-
- /* Set the range length */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.memory32.range_length);
- buffer += 4;
+ /*
+ * Get the following contiguous fields from the AML descriptor:
+ * Base Address
+ * Range Length
+ */
+ ACPI_MOVE_32_TO_32(&resource->data.fixed_memory32.address,
+ &aml->fixed_memory32.address);
+ ACPI_MOVE_32_TO_32(&resource->data.fixed_memory32.address_length,
+ &aml->fixed_memory32.address_length);
- /* Return the number of bytes consumed in this operation */
+ /* Complete the resource header */
- *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
+ resource->type = ACPI_RESOURCE_TYPE_FIXED_MEMORY32;
+ resource->length =
+ ACPI_SIZEOF_RESOURCE(struct acpi_resource_fixed_memory32);
return_ACPI_STATUS(AE_OK);
}
/*******************************************************************************
*
- * FUNCTION: acpi_rs_fixed_memory32_stream
+ * FUNCTION: acpi_rs_set_fixed_memory32
*
- * PARAMETERS: Resource - Pointer to the resource linked list
- * output_buffer - Pointer to the user's return buffer
- * bytes_consumed - Pointer to where the number of bytes
- * used in the output_buffer is returned
+ * PARAMETERS: Resource - Pointer to the resource descriptor
+ * Aml - Where the AML descriptor is returned
*
* RETURN: Status
*
- * DESCRIPTION: Take the linked list resource structure and fills in the
- * the appropriate bytes in a byte stream
+ * DESCRIPTION: Convert an internal resource descriptor to the corresponding
+ * external AML resource descriptor.
*
******************************************************************************/
acpi_status
-acpi_rs_fixed_memory32_stream(struct acpi_resource *resource,
- u8 ** output_buffer, acpi_size * bytes_consumed)
+acpi_rs_set_fixed_memory32(struct acpi_resource *resource,
+ union aml_resource *aml)
{
- u8 *buffer = *output_buffer;
- u16 temp16 = 0;
- u8 temp8 = 0;
-
- ACPI_FUNCTION_TRACE("rs_fixed_memory32_stream");
-
- /* The Descriptor Type field is static */
-
- *buffer = ACPI_RDESC_TYPE_FIXED_MEMORY_32;
- buffer += 1;
-
- /* The length field is static */
-
- temp16 = 0x09;
-
- ACPI_MOVE_16_TO_16(buffer, &temp16);
- buffer += 2;
+ ACPI_FUNCTION_TRACE("rs_set_fixed_memory32");
/* Set the Information Byte */
- temp8 =
- (u8) (resource->data.fixed_memory32.read_write_attribute & 0x01);
- *buffer = temp8;
- buffer += 1;
+ aml->fixed_memory32.information = (u8)
+ (resource->data.fixed_memory32.read_write_attribute & 0x01);
- /* Set the Range base address */
-
- ACPI_MOVE_32_TO_32(buffer,
- &resource->data.fixed_memory32.range_base_address);
- buffer += 4;
-
- /* Set the range length */
-
- ACPI_MOVE_32_TO_32(buffer, &resource->data.fixed_memory32.range_length);
- buffer += 4;
+ /*
+ * Set the following contiguous fields in the AML descriptor:
+ * Base Address
+ * Range Length
+ */
+ ACPI_MOVE_32_TO_32(&aml->fixed_memory32.address,
+ &resource->data.fixed_memory32.address);
+ ACPI_MOVE_32_TO_32(&aml->fixed_memory32.address_length,
+ &resource->data.fixed_memory32.address_length);
- /* Return the number of bytes consumed in this operation */
+ /* Complete the AML descriptor header */
- *bytes_consumed = ACPI_PTR_DIFF(buffer, *output_buffer);
+ acpi_rs_set_resource_header(ACPI_RESOURCE_NAME_FIXED_MEMORY32,
+ sizeof(struct aml_resource_fixed_memory32),
+ aml);
return_ACPI_STATUS(AE_OK);
}