Differential D32573 Diff 97207 usr.sbin/acpi/acpidump/acpi.c

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usr.sbin/acpi/acpidump/acpi.c

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	acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt)			acpi_get_fadt_revision(ACPI_TABLE_FADT *fadt)
	{			{
	int fadt_revision;			int fadt_revision;

	/* Set the FADT revision separately from the RSDP version. */			/* Set the FADT revision separately from the RSDP version. */
	if (addr_size == 8) {			if (addr_size == 8) {
	fadt_revision = 2;			fadt_revision = 2;

				#if defined(__i386__)
	/*			/*
				jhbUnsubmitted Not Done Inline Actions Minor nit, I would put the comment under #ifdef as well. jhb: Minor nit, I would put the comment under #ifdef as well.
				emasteUnsubmitted Not Done Inline Actions I was thinking the same thing but thought it was too minor even for a comment :) Since I'm now commenting, perhaps also extend the comment to mention that only very early ACPI implementations are expected to be affected and the workaround breaks newer systems, so apply only to 32-bit x86. emaste: I was thinking the same thing but thought it was too minor even for a comment :) Since I'm now…
	* A few systems (e.g., IBM T23) have an RSDP that claims			* A few systems (e.g., IBM T23) have an RSDP that claims
	* revision 2 but the 64 bit addresses are invalid. If			* revision 2 but the 64 bit addresses are invalid. If
	* revision 2 and the 32 bit address is non-zero but the			* revision 2 and the 32 bit address is non-zero but the
	* 32 and 64 bit versions don't match, prefer the 32 bit			* 32 and 64 bit versions don't match, prefer the 32 bit
	* version for all subsequent tables.			* version for all subsequent tables.
				*
				* The only known ACPI systems this affects are early
				* implementations on 32-bit x86. Because of this limit the
				* workaround to i386.
	*/			*/
	if (fadt->Facs != 0 &&			if (fadt->Facs != 0 &&
	(fadt->XFacs & 0xffffffff) != fadt->Facs)			(fadt->XFacs & 0xffffffff) != fadt->Facs)
	fadt_revision = 1;			fadt_revision = 1;
				#endif
	} else			} else
	fadt_revision = 1;			fadt_revision = 1;
	return (fadt_revision);			return (fadt_revision);
	}			}

	static void			static void
	acpi_handle_fadt(ACPI_TABLE_HEADER *sdp)			acpi_handle_fadt(ACPI_TABLE_HEADER *sdp)
	{			{
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