[PATCH] acpi: acpidump + acpi headers: Add simple support for FPDT

[IvanHu]

On 07/21/2012 01:25 AM, Colin King wrote:
> From: Colin Ian King <colin.king at canonical.com>
>
> ACPI 5.0 has introduced the FPDT, so add some simple acpidump
> support for the FPDT and FPDT pointer records.
>
> Signed-off-by: Colin Ian King <colin.king at canonical.com>
> ---
>   src/acpi/acpidump/acpidump.c |   61 ++++++++++++++++++++++++++++++++++++++++++
>   src/lib/include/fwts_acpi.h  |   21 +++++++++++++++
>   2 files changed, 82 insertions(+)
>
> diff --git a/src/acpi/acpidump/acpidump.c b/src/acpi/acpidump/acpidump.c
> index 0985597..ef7c79d 100644
> --- a/src/acpi/acpidump/acpidump.c
> +++ b/src/acpi/acpidump/acpidump.c
> @@ -1511,6 +1511,66 @@ static void acpidump_gtdt(fwts_framework *fw, fwts_acpi_table_info *table)
>   	acpi_dump_table_fields(fw, data, gtdt_fields, length, length);
>   }
>
> +/*
> + *  acpidump_fpdt()
> + *	dump FPDT, see 5.2.23 Firmware Performance Data Table (FPDT)
> + *	of version 5.0 ACPI spec.
> + */
> +static void acpidump_fpdt(fwts_framework *fw, fwts_acpi_table_info *table)
> +{
> +	uint8_t *data = (uint8_t *)table->data;
> +	uint8_t *ptr  = data;
> +	size_t length = table->length;
> +
> +	static fwts_acpidump_field fpdt_header_fields[] = {
> +		FIELD_UINT("Type", 		fwts_acpi_table_fpdt_header, type),
> +		FIELD_UINT("Length", 		fwts_acpi_table_fpdt_header, length),
> +		FIELD_UINT("Revision", 		fwts_acpi_table_fpdt_header, revision),
> +		FIELD_END
> +	};
> +
> +	static fwts_acpidump_field fpdt_s3_perf_ptr_fields[] = {
> +		FIELD_UINT("Reserved", 		fwts_acpi_table_fpdt_s3_perf_ptr, reserved),
> +		FIELD_UINT("S3PT Pointer", 	fwts_acpi_table_fpdt_s3_perf_ptr, s3pt_addr),
> +		FIELD_END
> +	};
> +
> +	static fwts_acpidump_field fpdt_basic_boot_perf_ptr_fields[] = {
> +		FIELD_UINT("Reserved", 		fwts_acpi_table_fpdt_basic_boot_perf_ptr, reserved),
> +		FIELD_UINT("FBPT Pointer", 	fwts_acpi_table_fpdt_basic_boot_perf_ptr, fbpt_addr),
> +		FIELD_END
> +	};
> +
> +	/*
> +	 *  Currently we just dump out the various pointer records.  A more complete
> +	 *  implementation should mmap the memory that the records point to and also
> +	 *  dump these out.  That's an implementation issue for later.
> +	 */
> +	while (ptr < data + length) {
> +		fwts_acpi_table_fpdt_header *fpdt = (fwts_acpi_table_fpdt_header*)ptr;
> +
> +		__acpi_dump_table_fields(fw, ptr, fpdt_header_fields, ptr - data);
> +		switch (fpdt->type) {
> +		case 0:
> +			fwts_log_info_verbatum(fw, "S3 resume performance record pointer:");
> +			__acpi_dump_table_fields(fw, ptr, fpdt_s3_perf_ptr_fields, ptr - data);
> +			break;
> +		case 1:
> +			fwts_log_info_verbatum(fw, "S3 suspend performance record pointer:");
> +			__acpi_dump_table_fields(fw, ptr, fpdt_s3_perf_ptr_fields, ptr - data);
> +			break;
> +		case 2:
> +			fwts_log_info_verbatum(fw, "Boot performance record pointer:");
> +			__acpi_dump_table_fields(fw, ptr, fpdt_basic_boot_perf_ptr_fields, ptr - data);
> +			break;
> +		default:
> +			break;
> +		}
> +
> +		ptr += fpdt->length;
> +	}
> +}
> +
>   typedef struct {
>   	char *name;
>   	void (*func)(fwts_framework *fw, fwts_acpi_table_info *table);
> @@ -1536,6 +1596,7 @@ static acpidump_table_vec table_vec[] = {
>   	{ "ERST", 	acpidump_erst, 	1 },
>   	{ "FACP", 	acpidump_fadt, 	1 },
>   	{ "FACS", 	acpidump_facs, 	0 },
> +	{ "FPDT",	acpidump_fpdt,	1 },
>   	{ "GTDT", 	acpidump_gtdt, 	1 },
>   	{ "HEST", 	acpidump_hest, 	1 },
>   	{ "HPET", 	acpidump_hpet, 	1 },
> diff --git a/src/lib/include/fwts_acpi.h b/src/lib/include/fwts_acpi.h
> index d559468..5e9a24a 100644
> --- a/src/lib/include/fwts_acpi.h
> +++ b/src/lib/include/fwts_acpi.h
> @@ -603,6 +603,27 @@ typedef struct {
>   	uint32_t	image_offset_t;
>   } __attribute__ ((packed)) fwts_acpi_table_bgrt;
>
> +/* 5.2.23 Firmware Performance Data Table (FPDT) ACPI 5.0 spec */
> +typedef struct {
> +	uint16_t	type;
> +	uint8_t		length;
> +	uint8_t		revision;
> +} __attribute__ ((packed)) fwts_acpi_table_fpdt_header;
> +
> +/* 5.2.23.4 S3 Performance Table Pointer Record */
> +typedef struct {
> +	fwts_acpi_table_fpdt_header	fpdt;
> +	uint32_t	reserved;
> +	uint64_t	s3pt_addr;
> +} __attribute__ ((packed)) fwts_acpi_table_fpdt_s3_perf_ptr;
> +
> +/* 5.2.23.5 Firmware Basic Boot Performance Pointer Record */
> +typedef struct {
> +	fwts_acpi_table_fpdt_header	fpdt;
> +	uint32_t	reserved;
> +	uint64_t	fbpt_addr;
> +} __attribute__ ((packed)) fwts_acpi_table_fpdt_basic_boot_perf_ptr;
> +
>   /* 5.2.24 Generic Timer Description Table (GTDT) ACPI 5.0 Spec */
>   typedef struct {
>   	uint64_t	phys_addr;
>
Acked-by: Ivan Hu <ivan.hu at canonical.com>