Merge branch 'linus' into cpus4096

Conflicts:

	kernel/stop_machine.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2949 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
new file mode 100644
index 00000000000..109ae24ba24
--- /dev/null
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -0,0 +1,2949 @@
+#ifndef _SPARC64_HYPERVISOR_H
+#define _SPARC64_HYPERVISOR_H
+
+/* Sun4v hypervisor interfaces and defines.
+ *
+ * Hypervisor calls are made via traps to software traps number 0x80
+ * and above.  Registers %o0 to %o5 serve as argument, status, and
+ * return value registers.
+ *
+ * There are two kinds of these traps.  First there are the normal
+ * "fast traps" which use software trap 0x80 and encode the function
+ * to invoke by number in register %o5.  Argument and return value
+ * handling is as follows:
+ *
+ * -----------------------------------------------
+ * |  %o5  | function number |     undefined     |
+ * |  %o0  |   argument 0    |   return status   |
+ * |  %o1  |   argument 1    |   return value 1  |
+ * |  %o2  |   argument 2    |   return value 2  |
+ * |  %o3  |   argument 3    |   return value 3  |
+ * |  %o4  |   argument 4    |   return value 4  |
+ * -----------------------------------------------
+ *
+ * The second type are "hyper-fast traps" which encode the function
+ * number in the software trap number itself.  So these use trap
+ * numbers > 0x80.  The register usage for hyper-fast traps is as
+ * follows:
+ *
+ * -----------------------------------------------
+ * |  %o0  |   argument 0    |   return status   |
+ * |  %o1  |   argument 1    |   return value 1  |
+ * |  %o2  |   argument 2    |   return value 2  |
+ * |  %o3  |   argument 3    |   return value 3  |
+ * |  %o4  |   argument 4    |   return value 4  |
+ * -----------------------------------------------
+ *
+ * Registers providing explicit arguments to the hypervisor calls
+ * are volatile across the call.  Upon return their values are
+ * undefined unless explicitly specified as containing a particular
+ * return value by the specific call.  The return status is always
+ * returned in register %o0, zero indicates a successful execution of
+ * the hypervisor call and other values indicate an error status as
+ * defined below.  So, for example, if a hyper-fast trap takes
+ * arguments 0, 1, and 2, then %o0, %o1, and %o2 are volatile across
+ * the call and %o3, %o4, and %o5 would be preserved.
+ *
+ * If the hypervisor trap is invalid, or the fast trap function number
+ * is invalid, HV_EBADTRAP will be returned in %o0.  Also, all 64-bits
+ * of the argument and return values are significant.
+ */
+
+/* Trap numbers.  */
+#define HV_FAST_TRAP		0x80
+#define HV_MMU_MAP_ADDR_TRAP	0x83
+#define HV_MMU_UNMAP_ADDR_TRAP	0x84
+#define HV_TTRACE_ADDENTRY_TRAP	0x85
+#define HV_CORE_TRAP		0xff
+
+/* Error codes.  */
+#define HV_EOK				0  /* Successful return            */
+#define HV_ENOCPU			1  /* Invalid CPU id               */
+#define HV_ENORADDR			2  /* Invalid real address         */
+#define HV_ENOINTR			3  /* Invalid interrupt id         */
+#define HV_EBADPGSZ			4  /* Invalid pagesize encoding    */
+#define HV_EBADTSB			5  /* Invalid TSB description      */
+#define HV_EINVAL			6  /* Invalid argument             */
+#define HV_EBADTRAP			7  /* Invalid function number      */
+#define HV_EBADALIGN			8  /* Invalid address alignment    */
+#define HV_EWOULDBLOCK			9  /* Cannot complete w/o blocking */
+#define HV_ENOACCESS			10 /* No access to resource        */
+#define HV_EIO				11 /* I/O error                    */
+#define HV_ECPUERROR			12 /* CPU in error state           */
+#define HV_ENOTSUPPORTED		13 /* Function not supported       */
+#define HV_ENOMAP			14 /* No mapping found             */
+#define HV_ETOOMANY			15 /* Too many items specified     */
+#define HV_ECHANNEL			16 /* Invalid LDC channel          */
+#define HV_EBUSY			17 /* Resource busy                */
+
+/* mach_exit()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_EXIT
+ * ARG0:	exit code
+ * ERRORS:	This service does not return.
+ *
+ * Stop all CPUs in the virtual domain and place them into the stopped
+ * state.  The 64-bit exit code may be passed to a service entity as
+ * the domain's exit status.  On systems without a service entity, the
+ * domain will undergo a reset, and the boot firmware will be
+ * reloaded.
+ *
+ * This function will never return to the guest that invokes it.
+ *
+ * Note: By convention an exit code of zero denotes a successful exit by
+ *       the guest code.  A non-zero exit code denotes a guest specific
+ *       error indication.
+ *
+ */
+#define HV_FAST_MACH_EXIT		0x00
+
+#ifndef __ASSEMBLY__
+extern void sun4v_mach_exit(unsigned long exit_code);
+#endif
+
+/* Domain services.  */
+
+/* mach_desc()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_DESC
+ * ARG0:	buffer
+ * ARG1:	length
+ * RET0:	status
+ * RET1:	length
+ * ERRORS:	HV_EBADALIGN	Buffer is badly aligned
+ *		HV_ENORADDR	Buffer is to an illegal real address.
+ *		HV_EINVAL	Buffer length is too small for complete
+ *				machine description.
+ *
+ * Copy the most current machine description into the buffer indicated
+ * by the real address in ARG0.  The buffer provided must be 16 byte
+ * aligned.  Upon success or HV_EINVAL, this service returns the
+ * actual size of the machine description in the RET1 return value.
+ *
+ * Note: A method of determining the appropriate buffer size for the
+ *       machine description is to first call this service with a buffer
+ *       length of 0 bytes.
+ */
+#define HV_FAST_MACH_DESC		0x01
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mach_desc(unsigned long buffer_pa,
+				     unsigned long buf_len,
+				     unsigned long *real_buf_len);
+#endif
+
+/* mach_sir()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_SIR
+ * ERRORS:	This service does not return.
+ *
+ * Perform a software initiated reset of the virtual machine domain.
+ * All CPUs are captured as soon as possible, all hardware devices are
+ * returned to the entry default state, and the domain is restarted at
+ * the SIR (trap type 0x04) real trap table (RTBA) entry point on one
+ * of the CPUs.  The single CPU restarted is selected as determined by
+ * platform specific policy.  Memory is preserved across this
+ * operation.
+ */
+#define HV_FAST_MACH_SIR		0x02
+
+#ifndef __ASSEMBLY__
+extern void sun4v_mach_sir(void);
+#endif
+
+/* mach_set_watchdog()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_SET_WATCHDOG
+ * ARG0:	timeout in milliseconds
+ * RET0:	status
+ * RET1:	time remaining in milliseconds
+ *
+ * A guest uses this API to set a watchdog timer.  Once the gues has set
+ * the timer, it must call the timer service again either to disable or
+ * postpone the expiration.  If the timer expires before being reset or
+ * disabled, then the hypervisor take a platform specific action leading
+ * to guest termination within a bounded time period.  The platform action
+ * may include recovery actions such as reporting the expiration to a
+ * Service Processor, and/or automatically restarting the gues.
+ *
+ * The 'timeout' parameter is specified in milliseconds, however the
+ * implementated granularity is given by the 'watchdog-resolution'
+ * property in the 'platform' node of the guest's machine description.
+ * The largest allowed timeout value is specified by the
+ * 'watchdog-max-timeout' property of the 'platform' node.
+ *
+ * If the 'timeout' argument is not zero, the watchdog timer is set to
+ * expire after a minimum of 'timeout' milliseconds.
+ *
+ * If the 'timeout' argument is zero, the watchdog timer is disabled.
+ *
+ * If the 'timeout' value exceeds the value of the 'max-watchdog-timeout'
+ * property, the hypervisor leaves the watchdog timer state unchanged,
+ * and returns a status of EINVAL.
+ *
+ * The 'time remaining' return value is valid regardless of whether the
+ * return status is EOK or EINVAL.  A non-zero return value indicates the
+ * number of milliseconds that were remaining until the timer was to expire.
+ * If less than one millisecond remains, the return value is '1'.  If the
+ * watchdog timer was disabled at the time of the call, the return value is
+ * zero.
+ *
+ * If the hypervisor cannot support the exact timeout value requested, but
+ * can support a larger timeout value, the hypervisor may round the actual
+ * timeout to a value larger than the requested timeout, consequently the
+ * 'time remaining' return value may be larger than the previously requested
+ * timeout value.
+ *
+ * Any guest OS debugger should be aware that the watchdog service may be in
+ * use.  Consequently, it is recommended that the watchdog service is
+ * disabled upon debugger entry (e.g. reaching a breakpoint), and then
+ * re-enabled upon returning to normal execution.  The API has been designed
+ * with this in mind, and the 'time remaining' result of the disable call may
+ * be used directly as the timeout argument of the re-enable call.
+ */
+#define HV_FAST_MACH_SET_WATCHDOG	0x05
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mach_set_watchdog(unsigned long timeout,
+					     unsigned long *orig_timeout);
+#endif
+
+/* CPU services.
+ *
+ * CPUs represent devices that can execute software threads.  A single
+ * chip that contains multiple cores or strands is represented as
+ * multiple CPUs with unique CPU identifiers.  CPUs are exported to
+ * OBP via the machine description (and to the OS via the OBP device
+ * tree).  CPUs are always in one of three states: stopped, running,
+ * or error.
+ *
+ * A CPU ID is a pre-assigned 16-bit value that uniquely identifies a
+ * CPU within a logical domain.  Operations that are to be performed
+ * on multiple CPUs specify them via a CPU list.  A CPU list is an
+ * array in real memory, of which each 16-bit word is a CPU ID.  CPU
+ * lists are passed through the API as two arguments.  The first is
+ * the number of entries (16-bit words) in the CPU list, and the
+ * second is the (real address) pointer to the CPU ID list.
+ */
+
+/* cpu_start()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_START
+ * ARG0:	CPU ID
+ * ARG1:	PC
+ * ARG2:	RTBA
+ * ARG3:	target ARG0
+ * RET0:	status
+ * ERRORS:	ENOCPU		Invalid CPU ID
+ *		EINVAL		Target CPU ID is not in the stopped state
+ *		ENORADDR	Invalid PC or RTBA real address
+ *		EBADALIGN	Unaligned PC or unaligned RTBA
+ *		EWOULDBLOCK	Starting resources are not available
+ *
+ * Start CPU with given CPU ID with PC in %pc and with a real trap
+ * base address value of RTBA.  The indicated CPU must be in the
+ * stopped state.  The supplied RTBA must be aligned on a 256 byte
+ * boundary.  On successful completion, the specified CPU will be in
+ * the running state and will be supplied with "target ARG0" in %o0
+ * and RTBA in %tba.
+ */
+#define HV_FAST_CPU_START		0x10
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_cpu_start(unsigned long cpuid,
+				     unsigned long pc,
+				     unsigned long rtba,
+				     unsigned long arg0);
+#endif
+
+/* cpu_stop()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_STOP
+ * ARG0:	CPU ID
+ * RET0:	status
+ * ERRORS:	ENOCPU		Invalid CPU ID
+ *		EINVAL		Target CPU ID is the current cpu
+ *		EINVAL		Target CPU ID is not in the running state
+ *		EWOULDBLOCK	Stopping resources are not available
+ *		ENOTSUPPORTED	Not supported on this platform
+ *
+ * The specified CPU is stopped.  The indicated CPU must be in the
+ * running state.  On completion, it will be in the stopped state.  It
+ * is not legal to stop the current CPU.
+ *
+ * Note: As this service cannot be used to stop the current cpu, this service
+ *       may not be used to stop the last running CPU in a domain.  To stop
+ *       and exit a running domain, a guest must use the mach_exit() service.
+ */
+#define HV_FAST_CPU_STOP		0x11
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_cpu_stop(unsigned long cpuid);
+#endif
+
+/* cpu_yield()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_YIELD
+ * RET0:	status
+ * ERRORS:	No possible error.
+ *
+ * Suspend execution on the current CPU.  Execution will resume when
+ * an interrupt (device, %stick_compare, or cross-call) is targeted to
+ * the CPU.  On some CPUs, this API may be used by the hypervisor to
+ * save power by disabling hardware strands.
+ */
+#define HV_FAST_CPU_YIELD		0x12
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_cpu_yield(void);
+#endif
+
+/* cpu_qconf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_QCONF
+ * ARG0:	queue
+ * ARG1:	base real address
+ * ARG2:	number of entries
+ * RET0:	status
+ * ERRORS:	ENORADDR	Invalid base real address
+ *		EINVAL		Invalid queue or number of entries is less
+ *				than 2 or too large.
+ *		EBADALIGN	Base real address is not correctly aligned
+ *				for size.
+ *
+ * Configure the given queue to be placed at the given base real
+ * address, with the given number of entries.  The number of entries
+ * must be a power of 2.  The base real address must be aligned
+ * exactly to match the queue size.  Each queue entry is 64 bytes
+ * long, so for example a 32 entry queue must be aligned on a 2048
+ * byte real address boundary.
+ *
+ * The specified queue is unconfigured if the number of entries is given
+ * as zero.
+ *
+ * For the current version of this API service, the argument queue is defined
+ * as follows:
+ *
+ *	queue		description
+ *	-----		-------------------------
+ *	0x3c		cpu mondo queue
+ *	0x3d		device mondo queue
+ *	0x3e		resumable error queue
+ *	0x3f		non-resumable error queue
+ *
+ * Note: The maximum number of entries for each queue for a specific cpu may
+ *       be determined from the machine description.
+ */
+#define HV_FAST_CPU_QCONF		0x14
+#define  HV_CPU_QUEUE_CPU_MONDO		 0x3c
+#define  HV_CPU_QUEUE_DEVICE_MONDO	 0x3d
+#define  HV_CPU_QUEUE_RES_ERROR		 0x3e
+#define  HV_CPU_QUEUE_NONRES_ERROR	 0x3f
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_cpu_qconf(unsigned long type,
+				     unsigned long queue_paddr,
+				     unsigned long num_queue_entries);
+#endif
+
+/* cpu_qinfo()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_QINFO
+ * ARG0:	queue
+ * RET0:	status
+ * RET1:	base real address
+ * RET1:	number of entries
+ * ERRORS:	EINVAL		Invalid queue
+ *
+ * Return the configuration info for the given queue.  The base real
+ * address and number of entries of the defined queue are returned.
+ * The queue argument values are the same as for cpu_qconf() above.
+ *
+ * If the specified queue is a valid queue number, but no queue has
+ * been defined, the number of entries will be set to zero and the
+ * base real address returned is undefined.
+ */
+#define HV_FAST_CPU_QINFO		0x15
+
+/* cpu_mondo_send()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_MONDO_SEND
+ * ARG0-1:	CPU list
+ * ARG2:	data real address
+ * RET0:	status
+ * ERRORS:	EBADALIGN	Mondo data is not 64-byte aligned or CPU list
+ *				is not 2-byte aligned.
+ *		ENORADDR	Invalid data mondo address, or invalid cpu list
+ *				address.
+ *		ENOCPU		Invalid cpu in CPU list
+ *		EWOULDBLOCK	Some or all of the listed CPUs did not receive
+ *				the mondo
+ *		ECPUERROR	One or more of the listed CPUs are in error
+ *				state, use HV_FAST_CPU_STATE to see which ones
+ *		EINVAL		CPU list includes caller's CPU ID
+ *
+ * Send a mondo interrupt to the CPUs in the given CPU list with the
+ * 64-bytes at the given data real address.  The data must be 64-byte
+ * aligned.  The mondo data will be delivered to the cpu_mondo queues
+ * of the recipient CPUs.
+ *
+ * In all cases, error or not, the CPUs in the CPU list to which the
+ * mondo has been successfully delivered will be indicated by having
+ * their entry in CPU list updated with the value 0xffff.
+ */
+#define HV_FAST_CPU_MONDO_SEND		0x42
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_cpu_mondo_send(unsigned long cpu_count, unsigned long cpu_list_pa, unsigned long mondo_block_pa);
+#endif
+
+/* cpu_myid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_MYID
+ * RET0:	status
+ * RET1:	CPU ID
+ * ERRORS:	No errors defined.
+ *
+ * Return the hypervisor ID handle for the current CPU.  Use by a
+ * virtual CPU to discover it's own identity.
+ */
+#define HV_FAST_CPU_MYID		0x16
+
+/* cpu_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_STATE
+ * ARG0:	CPU ID
+ * RET0:	status
+ * RET1:	state
+ * ERRORS:	ENOCPU		Invalid CPU ID
+ *
+ * Retrieve the current state of the CPU with the given CPU ID.
+ */
+#define HV_FAST_CPU_STATE		0x17
+#define  HV_CPU_STATE_STOPPED		 0x01
+#define  HV_CPU_STATE_RUNNING		 0x02
+#define  HV_CPU_STATE_ERROR		 0x03
+
+#ifndef __ASSEMBLY__
+extern long sun4v_cpu_state(unsigned long cpuid);
+#endif
+
+/* cpu_set_rtba()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_SET_RTBA
+ * ARG0:	RTBA
+ * RET0:	status
+ * RET1:	previous RTBA
+ * ERRORS:	ENORADDR	Invalid RTBA real address
+ *		EBADALIGN	RTBA is incorrectly aligned for a trap table
+ *
+ * Set the real trap base address of the local cpu to the given RTBA.
+ * The supplied RTBA must be aligned on a 256 byte boundary.  Upon
+ * success the previous value of the RTBA is returned in RET1.
+ *
+ * Note: This service does not affect %tba
+ */
+#define HV_FAST_CPU_SET_RTBA		0x18
+
+/* cpu_set_rtba()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CPU_GET_RTBA
+ * RET0:	status
+ * RET1:	previous RTBA
+ * ERRORS:	No possible error.
+ *
+ * Returns the current value of RTBA in RET1.
+ */
+#define HV_FAST_CPU_GET_RTBA		0x19
+
+/* MMU services.
+ *
+ * Layout of a TSB description for mmu_tsb_ctx{,non}0() calls.
+ */
+#ifndef __ASSEMBLY__
+struct hv_tsb_descr {
+	unsigned short		pgsz_idx;
+	unsigned short		assoc;
+	unsigned int		num_ttes;	/* in TTEs */
+	unsigned int		ctx_idx;
+	unsigned int		pgsz_mask;
+	unsigned long		tsb_base;
+	unsigned long		resv;
+};
+#endif
+#define HV_TSB_DESCR_PGSZ_IDX_OFFSET	0x00
+#define HV_TSB_DESCR_ASSOC_OFFSET	0x02
+#define HV_TSB_DESCR_NUM_TTES_OFFSET	0x04
+#define HV_TSB_DESCR_CTX_IDX_OFFSET	0x08
+#define HV_TSB_DESCR_PGSZ_MASK_OFFSET	0x0c
+#define HV_TSB_DESCR_TSB_BASE_OFFSET	0x10
+#define HV_TSB_DESCR_RESV_OFFSET	0x18
+
+/* Page size bitmask.  */
+#define HV_PGSZ_MASK_8K			(1 << 0)
+#define HV_PGSZ_MASK_64K		(1 << 1)
+#define HV_PGSZ_MASK_512K		(1 << 2)
+#define HV_PGSZ_MASK_4MB		(1 << 3)
+#define HV_PGSZ_MASK_32MB		(1 << 4)
+#define HV_PGSZ_MASK_256MB		(1 << 5)
+#define HV_PGSZ_MASK_2GB		(1 << 6)
+#define HV_PGSZ_MASK_16GB		(1 << 7)
+
+/* Page size index.  The value given in the TSB descriptor must correspond
+ * to the smallest page size specified in the pgsz_mask page size bitmask.
+ */
+#define HV_PGSZ_IDX_8K			0
+#define HV_PGSZ_IDX_64K			1
+#define HV_PGSZ_IDX_512K		2
+#define HV_PGSZ_IDX_4MB			3
+#define HV_PGSZ_IDX_32MB		4
+#define HV_PGSZ_IDX_256MB		5
+#define HV_PGSZ_IDX_2GB			6
+#define HV_PGSZ_IDX_16GB		7
+
+/* MMU fault status area.
+ *
+ * MMU related faults have their status and fault address information
+ * placed into a memory region made available by privileged code.  Each
+ * virtual processor must make a mmu_fault_area_conf() call to tell the
+ * hypervisor where that processor's fault status should be stored.
+ *
+ * The fault status block is a multiple of 64-bytes and must be aligned
+ * on a 64-byte boundary.
+ */
+#ifndef __ASSEMBLY__
+struct hv_fault_status {
+	unsigned long		i_fault_type;
+	unsigned long		i_fault_addr;
+	unsigned long		i_fault_ctx;
+	unsigned long		i_reserved[5];
+	unsigned long		d_fault_type;
+	unsigned long		d_fault_addr;
+	unsigned long		d_fault_ctx;
+	unsigned long		d_reserved[5];
+};
+#endif
+#define HV_FAULT_I_TYPE_OFFSET	0x00
+#define HV_FAULT_I_ADDR_OFFSET	0x08
+#define HV_FAULT_I_CTX_OFFSET	0x10
+#define HV_FAULT_D_TYPE_OFFSET	0x40
+#define HV_FAULT_D_ADDR_OFFSET	0x48
+#define HV_FAULT_D_CTX_OFFSET	0x50
+
+#define HV_FAULT_TYPE_FAST_MISS	1
+#define HV_FAULT_TYPE_FAST_PROT	2
+#define HV_FAULT_TYPE_MMU_MISS	3
+#define HV_FAULT_TYPE_INV_RA	4
+#define HV_FAULT_TYPE_PRIV_VIOL	5
+#define HV_FAULT_TYPE_PROT_VIOL	6
+#define HV_FAULT_TYPE_NFO	7
+#define HV_FAULT_TYPE_NFO_SEFF	8
+#define HV_FAULT_TYPE_INV_VA	9
+#define HV_FAULT_TYPE_INV_ASI	10
+#define HV_FAULT_TYPE_NC_ATOMIC	11
+#define HV_FAULT_TYPE_PRIV_ACT	12
+#define HV_FAULT_TYPE_RESV1	13
+#define HV_FAULT_TYPE_UNALIGNED	14
+#define HV_FAULT_TYPE_INV_PGSZ	15
+/* Values 16 --> -2 are reserved.  */
+#define HV_FAULT_TYPE_MULTIPLE	-1
+
+/* Flags argument for mmu_{map,unmap}_addr(), mmu_demap_{page,context,all}(),
+ * and mmu_{map,unmap}_perm_addr().
+ */
+#define HV_MMU_DMMU			0x01
+#define HV_MMU_IMMU			0x02
+#define HV_MMU_ALL			(HV_MMU_DMMU | HV_MMU_IMMU)
+
+/* mmu_map_addr()
+ * TRAP:	HV_MMU_MAP_ADDR_TRAP
+ * ARG0:	virtual address
+ * ARG1:	mmu context
+ * ARG2:	TTE
+ * ARG3:	flags (HV_MMU_{IMMU,DMMU})
+ * ERRORS:	EINVAL		Invalid virtual address, mmu context, or flags
+ *		EBADPGSZ	Invalid page size value
+ *		ENORADDR	Invalid real address in TTE
+ *
+ * Create a non-permanent mapping using the given TTE, virtual
+ * address, and mmu context.  The flags argument determines which
+ * (data, or instruction, or both) TLB the mapping gets loaded into.
+ *
+ * The behavior is undefined if the valid bit is clear in the TTE.
+ *
+ * Note: This API call is for privileged code to specify temporary translation
+ *       mappings without the need to create and manage a TSB.
+ */
+
+/* mmu_unmap_addr()
+ * TRAP:	HV_MMU_UNMAP_ADDR_TRAP
+ * ARG0:	virtual address
+ * ARG1:	mmu context
+ * ARG2:	flags (HV_MMU_{IMMU,DMMU})
+ * ERRORS:	EINVAL		Invalid virtual address, mmu context, or flags
+ *
+ * Demaps the given virtual address in the given mmu context on this
+ * CPU.  This function is intended to be used to demap pages mapped
+ * with mmu_map_addr.  This service is equivalent to invoking
+ * mmu_demap_page() with only the current CPU in the CPU list. The
+ * flags argument determines which (data, or instruction, or both) TLB
+ * the mapping gets unmapped from.
+ *
+ * Attempting to perform an unmap operation for a previously defined
+ * permanent mapping will have undefined results.
+ */
+
+/* mmu_tsb_ctx0()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_TSB_CTX0
+ * ARG0:	number of TSB descriptions
+ * ARG1:	TSB descriptions pointer
+ * RET0:	status
+ * ERRORS:	ENORADDR		Invalid TSB descriptions pointer or
+ *					TSB base within a descriptor
+ *		EBADALIGN		TSB descriptions pointer is not aligned
+ *					to an 8-byte boundary, or TSB base
+ *					within a descriptor is not aligned for
+ *					the given TSB size
+ *		EBADPGSZ		Invalid page size in a TSB descriptor
+ *		EBADTSB			Invalid associativity or size in a TSB
+ *					descriptor
+ *		EINVAL			Invalid number of TSB descriptions, or
+ *					invalid context index in a TSB
+ *					descriptor, or index page size not
+ *					equal to smallest page size in page
+ *					size bitmask field.
+ *
+ * Configures the TSBs for the current CPU for virtual addresses with
+ * context zero.  The TSB descriptions pointer is a pointer to an
+ * array of the given number of TSB descriptions.
+ *
+ * Note: The maximum number of TSBs available to a virtual CPU is given by the
+ *       mmu-max-#tsbs property of the cpu's corresponding "cpu" node in the
+ *       machine description.
+ */
+#define HV_FAST_MMU_TSB_CTX0		0x20
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
+					unsigned long tsb_desc_ra);
+#endif
+
+/* mmu_tsb_ctxnon0()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_TSB_CTXNON0
+ * ARG0:	number of TSB descriptions
+ * ARG1:	TSB descriptions pointer
+ * RET0:	status
+ * ERRORS:	Same as for mmu_tsb_ctx0() above.
+ *
+ * Configures the TSBs for the current CPU for virtual addresses with
+ * non-zero contexts.  The TSB descriptions pointer is a pointer to an
+ * array of the given number of TSB descriptions.
+ *
+ * Note: A maximum of 16 TSBs may be specified in the TSB description list.
+ */
+#define HV_FAST_MMU_TSB_CTXNON0		0x21
+
+/* mmu_demap_page()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_DEMAP_PAGE
+ * ARG0:	reserved, must be zero
+ * ARG1:	reserved, must be zero
+ * ARG2:	virtual address
+ * ARG3:	mmu context
+ * ARG4:	flags (HV_MMU_{IMMU,DMMU})
+ * RET0:	status
+ * ERRORS:	EINVAL			Invalid virutal address, context, or
+ *					flags value
+ *		ENOTSUPPORTED		ARG0 or ARG1 is non-zero
+ *
+ * Demaps any page mapping of the given virtual address in the given
+ * mmu context for the current virtual CPU.  Any virtually tagged
+ * caches are guaranteed to be kept consistent.  The flags argument
+ * determines which TLB (instruction, or data, or both) participate in
+ * the operation.
+ *
+ * ARG0 and ARG1 are both reserved and must be set to zero.
+ */
+#define HV_FAST_MMU_DEMAP_PAGE		0x22
+
+/* mmu_demap_ctx()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_DEMAP_CTX
+ * ARG0:	reserved, must be zero
+ * ARG1:	reserved, must be zero
+ * ARG2:	mmu context
+ * ARG3:	flags (HV_MMU_{IMMU,DMMU})
+ * RET0:	status
+ * ERRORS:	EINVAL			Invalid context or flags value
+ *		ENOTSUPPORTED		ARG0 or ARG1 is non-zero
+ *
+ * Demaps all non-permanent virtual page mappings previously specified
+ * for the given context for the current virtual CPU.  Any virtual
+ * tagged caches are guaranteed to be kept consistent.  The flags
+ * argument determines which TLB (instruction, or data, or both)
+ * participate in the operation.
+ *
+ * ARG0 and ARG1 are both reserved and must be set to zero.
+ */
+#define HV_FAST_MMU_DEMAP_CTX		0x23
+
+/* mmu_demap_all()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_DEMAP_ALL
+ * ARG0:	reserved, must be zero
+ * ARG1:	reserved, must be zero
+ * ARG2:	flags (HV_MMU_{IMMU,DMMU})
+ * RET0:	status
+ * ERRORS:	EINVAL			Invalid flags value
+ *		ENOTSUPPORTED		ARG0 or ARG1 is non-zero
+ *
+ * Demaps all non-permanent virtual page mappings previously specified
+ * for the current virtual CPU.  Any virtual tagged caches are
+ * guaranteed to be kept consistent.  The flags argument determines
+ * which TLB (instruction, or data, or both) participate in the
+ * operation.
+ *
+ * ARG0 and ARG1 are both reserved and must be set to zero.
+ */
+#define HV_FAST_MMU_DEMAP_ALL		0x24
+
+#ifndef __ASSEMBLY__
+extern void sun4v_mmu_demap_all(void);
+#endif
+
+/* mmu_map_perm_addr()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_MAP_PERM_ADDR
+ * ARG0:	virtual address
+ * ARG1:	reserved, must be zero
+ * ARG2:	TTE
+ * ARG3:	flags (HV_MMU_{IMMU,DMMU})
+ * RET0:	status
+ * ERRORS:	EINVAL			Invalid virutal address or flags value
+ *		EBADPGSZ		Invalid page size value
+ *		ENORADDR		Invalid real address in TTE
+ *		ETOOMANY		Too many mappings (max of 8 reached)
+ *
+ * Create a permanent mapping using the given TTE and virtual address
+ * for context 0 on the calling virtual CPU.  A maximum of 8 such
+ * permanent mappings may be specified by privileged code.  Mappings
+ * may be removed with mmu_unmap_perm_addr().
+ *
+ * The behavior is undefined if a TTE with the valid bit clear is given.
+ *
+ * Note: This call is used to specify address space mappings for which
+ *       privileged code does not expect to receive misses.  For example,
+ *       this mechanism can be used to map kernel nucleus code and data.
+ */
+#define HV_FAST_MMU_MAP_PERM_ADDR	0x25
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mmu_map_perm_addr(unsigned long vaddr,
+					     unsigned long set_to_zero,
+					     unsigned long tte,
+					     unsigned long flags);
+#endif
+
+/* mmu_fault_area_conf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_FAULT_AREA_CONF
+ * ARG0:	real address
+ * RET0:	status
+ * RET1:	previous mmu fault area real address
+ * ERRORS:	ENORADDR		Invalid real address
+ *		EBADALIGN		Invalid alignment for fault area
+ *
+ * Configure the MMU fault status area for the calling CPU.  A 64-byte
+ * aligned real address specifies where MMU fault status information
+ * is placed.  The return value is the previously specified area, or 0
+ * for the first invocation.  Specifying a fault area at real address
+ * 0 is not allowed.
+ */
+#define HV_FAST_MMU_FAULT_AREA_CONF	0x26
+
+/* mmu_enable()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_ENABLE
+ * ARG0:	enable flag
+ * ARG1:	return target address
+ * RET0:	status
+ * ERRORS:	ENORADDR		Invalid real address when disabling
+ *					translation.
+ *		EBADALIGN		The return target address is not
+ *					aligned to an instruction.
+ *		EINVAL			The enable flag request the current
+ *					operating mode (e.g. disable if already
+ *					disabled)
+ *
+ * Enable or disable virtual address translation for the calling CPU
+ * within the virtual machine domain.  If the enable flag is zero,
+ * translation is disabled, any non-zero value will enable
+ * translation.
+ *
+ * When this function returns, the newly selected translation mode
+ * will be active.  If the mmu is being enabled, then the return
+ * target address is a virtual address else it is a real address.
+ *
+ * Upon successful completion, control will be returned to the given
+ * return target address (ie. the cpu will jump to that address).  On
+ * failure, the previous mmu mode remains and the trap simply returns
+ * as normal with the appropriate error code in RET0.
+ */
+#define HV_FAST_MMU_ENABLE		0x27
+
+/* mmu_unmap_perm_addr()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_UNMAP_PERM_ADDR
+ * ARG0:	virtual address
+ * ARG1:	reserved, must be zero
+ * ARG2:	flags (HV_MMU_{IMMU,DMMU})
+ * RET0:	status
+ * ERRORS:	EINVAL			Invalid virutal address or flags value
+ *		ENOMAP			Specified mapping was not found
+ *
+ * Demaps any permanent page mapping (established via
+ * mmu_map_perm_addr()) at the given virtual address for context 0 on
+ * the current virtual CPU.  Any virtual tagged caches are guaranteed
+ * to be kept consistent.
+ */
+#define HV_FAST_MMU_UNMAP_PERM_ADDR	0x28
+
+/* mmu_tsb_ctx0_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_TSB_CTX0_INFO
+ * ARG0:	max TSBs
+ * ARG1:	buffer pointer
+ * RET0:	status
+ * RET1:	number of TSBs
+ * ERRORS:	EINVAL			Supplied buffer is too small
+ *		EBADALIGN		The buffer pointer is badly aligned
+ *		ENORADDR		Invalid real address for buffer pointer
+ *
+ * Return the TSB configuration as previous defined by mmu_tsb_ctx0()
+ * into the provided buffer.  The size of the buffer is given in ARG1
+ * in terms of the number of TSB description entries.
+ *
+ * Upon return, RET1 always contains the number of TSB descriptions
+ * previously configured.  If zero TSBs were configured, EOK is
+ * returned with RET1 containing 0.
+ */
+#define HV_FAST_MMU_TSB_CTX0_INFO	0x29
+
+/* mmu_tsb_ctxnon0_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_TSB_CTXNON0_INFO
+ * ARG0:	max TSBs
+ * ARG1:	buffer pointer
+ * RET0:	status
+ * RET1:	number of TSBs
+ * ERRORS:	EINVAL			Supplied buffer is too small
+ *		EBADALIGN		The buffer pointer is badly aligned
+ *		ENORADDR		Invalid real address for buffer pointer
+ *
+ * Return the TSB configuration as previous defined by
+ * mmu_tsb_ctxnon0() into the provided buffer.  The size of the buffer
+ * is given in ARG1 in terms of the number of TSB description entries.
+ *
+ * Upon return, RET1 always contains the number of TSB descriptions
+ * previously configured.  If zero TSBs were configured, EOK is
+ * returned with RET1 containing 0.
+ */
+#define HV_FAST_MMU_TSB_CTXNON0_INFO	0x2a
+
+/* mmu_fault_area_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMU_FAULT_AREA_INFO
+ * RET0:	status
+ * RET1:	fault area real address
+ * ERRORS:	No errors defined.
+ *
+ * Return the currently defined MMU fault status area for the current
+ * CPU.  The real address of the fault status area is returned in
+ * RET1, or 0 is returned in RET1 if no fault status area is defined.
+ *
+ * Note: mmu_fault_area_conf() may be called with the return value (RET1)
+ *       from this service if there is a need to save and restore the fault
+ *	 area for a cpu.
+ */
+#define HV_FAST_MMU_FAULT_AREA_INFO	0x2b
+
+/* Cache and Memory services. */
+
+/* mem_scrub()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MEM_SCRUB
+ * ARG0:	real address
+ * ARG1:	length
+ * RET0:	status
+ * RET1:	length scrubbed
+ * ERRORS:	ENORADDR	Invalid real address
+ *		EBADALIGN	Start address or length are not correctly
+ *				aligned
+ *		EINVAL		Length is zero
+ *
+ * Zero the memory contents in the range real address to real address
+ * plus length minus 1.  Also, valid ECC will be generated for that
+ * memory address range.  Scrubbing is started at the given real
+ * address, but may not scrub the entire given length.  The actual
+ * length scrubbed will be returned in RET1.
+ *
+ * The real address and length must be aligned on an 8K boundary, or
+ * contain the start address and length from a sun4v error report.
+ *
+ * Note: There are two uses for this function.  The first use is to block clear
+ *       and initialize memory and the second is to scrub an u ncorrectable
+ *       error reported via a resumable or non-resumable trap.  The second
+ *       use requires the arguments to be equal to the real address and length
+ *       provided in a sun4v memory error report.
+ */
+#define HV_FAST_MEM_SCRUB		0x31
+
+/* mem_sync()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MEM_SYNC
+ * ARG0:	real address
+ * ARG1:	length
+ * RET0:	status
+ * RET1:	length synced
+ * ERRORS:	ENORADDR	Invalid real address
+ *		EBADALIGN	Start address or length are not correctly
+ *				aligned
+ *		EINVAL		Length is zero
+ *
+ * Force the next access within the real address to real address plus
+ * length minus 1 to be fetches from main system memory.  Less than
+ * the given length may be synced, the actual amount synced is
+ * returned in RET1.  The real address and length must be aligned on
+ * an 8K boundary.
+ */
+#define HV_FAST_MEM_SYNC		0x32
+
+/* Time of day services.
+ *
+ * The hypervisor maintains the time of day on a per-domain basis.
+ * Changing the time of day in one domain does not affect the time of
+ * day on any other domain.
+ *
+ * Time is described by a single unsigned 64-bit word which is the
+ * number of seconds since the UNIX Epoch (00:00:00 UTC, January 1,
+ * 1970).
+ */
+
+/* tod_get()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TOD_GET
+ * RET0:	status
+ * RET1:	TOD
+ * ERRORS:	EWOULDBLOCK	TOD resource is temporarily unavailable
+ *		ENOTSUPPORTED	If TOD not supported on this platform
+ *
+ * Return the current time of day.  May block if TOD access is
+ * temporarily not possible.
+ */
+#define HV_FAST_TOD_GET			0x50
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_tod_get(unsigned long *time);
+#endif
+
+/* tod_set()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TOD_SET
+ * ARG0:	TOD
+ * RET0:	status
+ * ERRORS:	EWOULDBLOCK	TOD resource is temporarily unavailable
+ *		ENOTSUPPORTED	If TOD not supported on this platform
+ *
+ * The current time of day is set to the value specified in ARG0.  May
+ * block if TOD access is temporarily not possible.
+ */
+#define HV_FAST_TOD_SET			0x51
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_tod_set(unsigned long time);
+#endif
+
+/* Console services */
+
+/* con_getchar()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CONS_GETCHAR
+ * RET0:	status
+ * RET1:	character
+ * ERRORS:	EWOULDBLOCK	No character available.
+ *
+ * Returns a character from the console device.  If no character is
+ * available then an EWOULDBLOCK error is returned.  If a character is
+ * available, then the returned status is EOK and the character value
+ * is in RET1.
+ *
+ * A virtual BREAK is represented by the 64-bit value -1.
+ *
+ * A virtual HUP signal is represented by the 64-bit value -2.
+ */
+#define HV_FAST_CONS_GETCHAR		0x60
+
+/* con_putchar()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CONS_PUTCHAR
+ * ARG0:	character
+ * RET0:	status
+ * ERRORS:	EINVAL		Illegal character
+ *		EWOULDBLOCK	Output buffer currently full, would block
+ *
+ * Send a character to the console device.  Only character values
+ * between 0 and 255 may be used.  Values outside this range are
+ * invalid except for the 64-bit value -1 which is used to send a
+ * virtual BREAK.
+ */
+#define HV_FAST_CONS_PUTCHAR		0x61
+
+/* con_read()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CONS_READ
+ * ARG0:	buffer real address
+ * ARG1:	buffer size in bytes
+ * RET0:	status
+ * RET1:	bytes read or BREAK or HUP
+ * ERRORS:	EWOULDBLOCK	No character available.
+ *
+ * Reads characters into a buffer from the console device.  If no
+ * character is available then an EWOULDBLOCK error is returned.
+ * If a character is available, then the returned status is EOK
+ * and the number of bytes read into the given buffer is provided
+ * in RET1.
+ *
+ * A virtual BREAK is represented by the 64-bit RET1 value -1.
+ *
+ * A virtual HUP signal is represented by the 64-bit RET1 value -2.
+ *
+ * If BREAK or HUP are indicated, no bytes were read into buffer.
+ */
+#define HV_FAST_CONS_READ		0x62
+
+/* con_write()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_CONS_WRITE
+ * ARG0:	buffer real address
+ * ARG1:	buffer size in bytes
+ * RET0:	status
+ * RET1:	bytes written
+ * ERRORS:	EWOULDBLOCK	Output buffer currently full, would block
+ *
+ * Send a characters in buffer to the console device.  Breaks must be
+ * sent using con_putchar().
+ */
+#define HV_FAST_CONS_WRITE		0x63
+
+#ifndef __ASSEMBLY__
+extern long sun4v_con_getchar(long *status);
+extern long sun4v_con_putchar(long c);
+extern long sun4v_con_read(unsigned long buffer,
+			   unsigned long size,
+			   unsigned long *bytes_read);
+extern unsigned long sun4v_con_write(unsigned long buffer,
+				     unsigned long size,
+				     unsigned long *bytes_written);
+#endif
+
+/* mach_set_soft_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_SET_SOFT_STATE
+ * ARG0:	software state
+ * ARG1:	software state description pointer
+ * RET0:	status
+ * ERRORS:	EINVAL		software state not valid or software state
+ *				description is not NULL terminated
+ *		ENORADDR	software state description pointer is not a
+ *				valid real address
+ *		EBADALIGNED	software state description is not correctly
+ *				aligned
+ *
+ * This allows the guest to report it's soft state to the hypervisor.  There
+ * are two primary components to this state.  The first part states whether
+ * the guest software is running or not.  The second containts optional
+ * details specific to the software.
+ *
+ * The software state argument is defined below in HV_SOFT_STATE_*, and
+ * indicates whether the guest is operating normally or in a transitional
+ * state.
+ *
+ * The software state description argument is a real address of a data buffer
+ * of size 32-bytes aligned on a 32-byte boundary.  It is treated as a NULL
+ * terminated 7-bit ASCII string of up to 31 characters not including the
+ * NULL termination.
+ */
+#define HV_FAST_MACH_SET_SOFT_STATE	0x70
+#define  HV_SOFT_STATE_NORMAL		 0x01
+#define  HV_SOFT_STATE_TRANSITION	 0x02
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mach_set_soft_state(unsigned long soft_state,
+					       unsigned long msg_string_ra);
+#endif
+
+/* mach_get_soft_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MACH_GET_SOFT_STATE
+ * ARG0:	software state description pointer
+ * RET0:	status
+ * RET1:	software state
+ * ERRORS:	ENORADDR	software state description pointer is not a
+ *				valid real address
+ *		EBADALIGNED	software state description is not correctly
+ *				aligned
+ *
+ * Retrieve the current value of the guest's software state.  The rules
+ * for the software state pointer are the same as for mach_set_soft_state()
+ * above.
+ */
+#define HV_FAST_MACH_GET_SOFT_STATE	0x71
+
+/* svc_send()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SVC_SEND
+ * ARG0:	service ID
+ * ARG1:	buffer real address
+ * ARG2:	buffer size
+ * RET0:	STATUS
+ * RET1:	sent_bytes
+ *
+ * Be careful, all output registers are clobbered by this operation,
+ * so for example it is not possible to save away a value in %o4
+ * across the trap.
+ */
+#define HV_FAST_SVC_SEND		0x80
+
+/* svc_recv()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SVC_RECV
+ * ARG0:	service ID
+ * ARG1:	buffer real address
+ * ARG2:	buffer size
+ * RET0:	STATUS
+ * RET1:	recv_bytes
+ *
+ * Be careful, all output registers are clobbered by this operation,
+ * so for example it is not possible to save away a value in %o4
+ * across the trap.
+ */
+#define HV_FAST_SVC_RECV		0x81
+
+/* svc_getstatus()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SVC_GETSTATUS
+ * ARG0:	service ID
+ * RET0:	STATUS
+ * RET1:	status bits
+ */
+#define HV_FAST_SVC_GETSTATUS		0x82
+
+/* svc_setstatus()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SVC_SETSTATUS
+ * ARG0:	service ID
+ * ARG1:	bits to set
+ * RET0:	STATUS
+ */
+#define HV_FAST_SVC_SETSTATUS		0x83
+
+/* svc_clrstatus()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SVC_CLRSTATUS
+ * ARG0:	service ID
+ * ARG1:	bits to clear
+ * RET0:	STATUS
+ */
+#define HV_FAST_SVC_CLRSTATUS		0x84
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_svc_send(unsigned long svc_id,
+				    unsigned long buffer,
+				    unsigned long buffer_size,
+				    unsigned long *sent_bytes);
+extern unsigned long sun4v_svc_recv(unsigned long svc_id,
+				    unsigned long buffer,
+				    unsigned long buffer_size,
+				    unsigned long *recv_bytes);
+extern unsigned long sun4v_svc_getstatus(unsigned long svc_id,
+					 unsigned long *status_bits);
+extern unsigned long sun4v_svc_setstatus(unsigned long svc_id,
+					 unsigned long status_bits);
+extern unsigned long sun4v_svc_clrstatus(unsigned long svc_id,
+					 unsigned long status_bits);
+#endif
+
+/* Trap trace services.
+ *
+ * The hypervisor provides a trap tracing capability for privileged
+ * code running on each virtual CPU.  Privileged code provides a
+ * round-robin trap trace queue within which the hypervisor writes
+ * 64-byte entries detailing hyperprivileged traps taken n behalf of
+ * privileged code.  This is provided as a debugging capability for
+ * privileged code.
+ *
+ * The trap trace control structure is 64-bytes long and placed at the
+ * start (offset 0) of the trap trace buffer, and is described as
+ * follows:
+ */
+#ifndef __ASSEMBLY__
+struct hv_trap_trace_control {
+	unsigned long		head_offset;
+	unsigned long		tail_offset;
+	unsigned long		__reserved[0x30 / sizeof(unsigned long)];
+};
+#endif
+#define HV_TRAP_TRACE_CTRL_HEAD_OFFSET	0x00
+#define HV_TRAP_TRACE_CTRL_TAIL_OFFSET	0x08
+
+/* The head offset is the offset of the most recently completed entry
+ * in the trap-trace buffer.  The tail offset is the offset of the
+ * next entry to be written.  The control structure is owned and
+ * modified by the hypervisor.  A guest may not modify the control
+ * structure contents.  Attempts to do so will result in undefined
+ * behavior for the guest.
+ *
+ * Each trap trace buffer entry is layed out as follows:
+ */
+#ifndef __ASSEMBLY__
+struct hv_trap_trace_entry {
+	unsigned char	type;		/* Hypervisor or guest entry?	*/
+	unsigned char	hpstate;	/* Hyper-privileged state	*/
+	unsigned char	tl;		/* Trap level			*/
+	unsigned char	gl;		/* Global register level	*/
+	unsigned short	tt;		/* Trap type			*/
+	unsigned short	tag;		/* Extended trap identifier	*/
+	unsigned long	tstate;		/* Trap state			*/
+	unsigned long	tick;		/* Tick				*/
+	unsigned long	tpc;		/* Trap PC			*/
+	unsigned long	f1;		/* Entry specific		*/
+	unsigned long	f2;		/* Entry specific		*/
+	unsigned long	f3;		/* Entry specific		*/
+	unsigned long	f4;		/* Entry specific		*/
+};
+#endif
+#define HV_TRAP_TRACE_ENTRY_TYPE	0x00
+#define HV_TRAP_TRACE_ENTRY_HPSTATE	0x01
+#define HV_TRAP_TRACE_ENTRY_TL		0x02
+#define HV_TRAP_TRACE_ENTRY_GL		0x03
+#define HV_TRAP_TRACE_ENTRY_TT		0x04
+#define HV_TRAP_TRACE_ENTRY_TAG		0x06
+#define HV_TRAP_TRACE_ENTRY_TSTATE	0x08
+#define HV_TRAP_TRACE_ENTRY_TICK	0x10
+#define HV_TRAP_TRACE_ENTRY_TPC		0x18
+#define HV_TRAP_TRACE_ENTRY_F1		0x20
+#define HV_TRAP_TRACE_ENTRY_F2		0x28
+#define HV_TRAP_TRACE_ENTRY_F3		0x30
+#define HV_TRAP_TRACE_ENTRY_F4		0x38
+
+/* The type field is encoded as follows.  */
+#define HV_TRAP_TYPE_UNDEF		0x00 /* Entry content undefined     */
+#define HV_TRAP_TYPE_HV			0x01 /* Hypervisor trap entry       */
+#define HV_TRAP_TYPE_GUEST		0xff /* Added via ttrace_addentry() */
+
+/* ttrace_buf_conf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TTRACE_BUF_CONF
+ * ARG0:	real address
+ * ARG1:	number of entries
+ * RET0:	status
+ * RET1:	number of entries
+ * ERRORS:	ENORADDR	Invalid real address
+ *		EINVAL		Size is too small
+ *		EBADALIGN	Real address not aligned on 64-byte boundary
+ *
+ * Requests hypervisor trap tracing and declares a virtual CPU's trap
+ * trace buffer to the hypervisor.  The real address supplies the real
+ * base address of the trap trace queue and must be 64-byte aligned.
+ * Specifying a value of 0 for the number of entries disables trap
+ * tracing for the calling virtual CPU.  The buffer allocated must be
+ * sized for a power of two number of 64-byte trap trace entries plus
+ * an initial 64-byte control structure.
+ *
+ * This may be invoked any number of times so that a virtual CPU may
+ * relocate a trap trace buffer or create "snapshots" of information.
+ *
+ * If the real address is illegal or badly aligned, then trap tracing
+ * is disabled and an error is returned.
+ *
+ * Upon failure with EINVAL, this service call returns in RET1 the
+ * minimum number of buffer entries required.  Upon other failures
+ * RET1 is undefined.
+ */
+#define HV_FAST_TTRACE_BUF_CONF		0x90
+
+/* ttrace_buf_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TTRACE_BUF_INFO
+ * RET0:	status
+ * RET1:	real address
+ * RET2:	size
+ * ERRORS:	None defined.
+ *
+ * Returns the size and location of the previously declared trap-trace
+ * buffer.  In the event that no buffer was previously defined, or the
+ * buffer is disabled, this call will return a size of zero bytes.
+ */
+#define HV_FAST_TTRACE_BUF_INFO		0x91
+
+/* ttrace_enable()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TTRACE_ENABLE
+ * ARG0:	enable
+ * RET0:	status
+ * RET1:	previous enable state
+ * ERRORS:	EINVAL		No trap trace buffer currently defined
+ *
+ * Enable or disable trap tracing, and return the previous enabled
+ * state in RET1.  Future systems may define various flags for the
+ * enable argument (ARG0), for the moment a guest should pass
+ * "(uint64_t) -1" to enable, and "(uint64_t) 0" to disable all
+ * tracing - which will ensure future compatability.
+ */
+#define HV_FAST_TTRACE_ENABLE		0x92
+
+/* ttrace_freeze()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_TTRACE_FREEZE
+ * ARG0:	freeze
+ * RET0:	status
+ * RET1:	previous freeze state
+ * ERRORS:	EINVAL		No trap trace buffer currently defined
+ *
+ * Freeze or unfreeze trap tracing, returning the previous freeze
+ * state in RET1.  A guest should pass a non-zero value to freeze and
+ * a zero value to unfreeze all tracing.  The returned previous state
+ * is 0 for not frozen and 1 for frozen.
+ */
+#define HV_FAST_TTRACE_FREEZE		0x93
+
+/* ttrace_addentry()
+ * TRAP:	HV_TTRACE_ADDENTRY_TRAP
+ * ARG0:	tag (16-bits)
+ * ARG1:	data word 0
+ * ARG2:	data word 1
+ * ARG3:	data word 2
+ * ARG4:	data word 3
+ * RET0:	status
+ * ERRORS:	EINVAL		No trap trace buffer currently defined
+ *
+ * Add an entry to the trap trace buffer.  Upon return only ARG0/RET0
+ * is modified - none of the other registers holding arguments are
+ * volatile across this hypervisor service.
+ */
+
+/* Core dump services.
+ *
+ * Since the hypervisor viraulizes and thus obscures a lot of the
+ * physical machine layout and state, traditional OS crash dumps can
+ * be difficult to diagnose especially when the problem is a
+ * configuration error of some sort.
+ *
+ * The dump services provide an opaque buffer into which the
+ * hypervisor can place it's internal state in order to assist in
+ * debugging such situations.  The contents are opaque and extremely
+ * platform and hypervisor implementation specific.  The guest, during
+ * a core dump, requests that the hypervisor update any information in
+ * the dump buffer in preparation to being dumped as part of the
+ * domain's memory image.
+ */
+
+/* dump_buf_update()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_DUMP_BUF_UPDATE
+ * ARG0:	real address
+ * ARG1:	size
+ * RET0:	status
+ * RET1:	required size of dump buffer
+ * ERRORS:	ENORADDR	Invalid real address
+ *		EBADALIGN	Real address is not aligned on a 64-byte
+ *				boundary
+ *		EINVAL		Size is non-zero but less than minimum size
+ *				required
+ *		ENOTSUPPORTED	Operation not supported on current logical
+ *				domain
+ *
+ * Declare a domain dump buffer to the hypervisor.  The real address
+ * provided for the domain dump buffer must be 64-byte aligned.  The
+ * size specifies the size of the dump buffer and may be larger than
+ * the minimum size specified in the machine description.  The
+ * hypervisor will fill the dump buffer with opaque data.
+ *
+ * Note: A guest may elect to include dump buffer contents as part of a crash
+ *       dump to assist with debugging.  This function may be called any number
+ *       of times so that a guest may relocate a dump buffer, or create
+ *       "snapshots" of any dump-buffer information.  Each call to
+ *       dump_buf_update() atomically declares the new dump buffer to the
+ *       hypervisor.
+ *
+ * A specified size of 0 unconfigures the dump buffer.  If the real
+ * address is illegal or badly aligned, then any currently active dump
+ * buffer is disabled and an error is returned.
+ *
+ * In the event that the call fails with EINVAL, RET1 contains the
+ * minimum size requires by the hypervisor for a valid dump buffer.
+ */
+#define HV_FAST_DUMP_BUF_UPDATE		0x94
+
+/* dump_buf_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_DUMP_BUF_INFO
+ * RET0:	status
+ * RET1:	real address of current dump buffer
+ * RET2:	size of current dump buffer
+ * ERRORS:	No errors defined.
+ *
+ * Return the currently configures dump buffer description.  A
+ * returned size of 0 bytes indicates an undefined dump buffer.  In
+ * this case the return address in RET1 is undefined.
+ */
+#define HV_FAST_DUMP_BUF_INFO		0x95
+
+/* Device interrupt services.
+ *
+ * Device interrupts are allocated to system bus bridges by the hypervisor,
+ * and described to OBP in the machine description.  OBP then describes
+ * these interrupts to the OS via properties in the device tree.
+ *
+ * Terminology:
+ *
+ *	cpuid		Unique opaque value which represents a target cpu.
+ *
+ *	devhandle	Device handle.  It uniquely identifies a device, and
+ *			consistes of the lower 28-bits of the hi-cell of the
+ *			first entry of the device's "reg" property in the
+ *			OBP device tree.
+ *
+ *	devino		Device interrupt number.  Specifies the relative
+ *			interrupt number within the device.  The unique
+ *			combination of devhandle and devino are used to
+ *			identify a specific device interrupt.
+ *
+ *			Note: The devino value is the same as the values in the
+ *			      "interrupts" property or "interrupt-map" property
+ *			      in the OBP device tree for that device.
+ *
+ *	sysino		System interrupt number.  A 64-bit unsigned interger
+ *			representing a unique interrupt within a virtual
+ *			machine.
+ *
+ *	intr_state	A flag representing the interrupt state for a given
+ *			sysino.  The state values are defined below.
+ *
+ *	intr_enabled	A flag representing the 'enabled' state for a given
+ *			sysino.  The enable values are defined below.
+ */
+
+#define HV_INTR_STATE_IDLE		0 /* Nothing pending */
+#define HV_INTR_STATE_RECEIVED		1 /* Interrupt received by hardware */
+#define HV_INTR_STATE_DELIVERED		2 /* Interrupt delivered to queue */
+
+#define HV_INTR_DISABLED		0 /* sysino not enabled */
+#define HV_INTR_ENABLED			1 /* sysino enabled */
+
+/* intr_devino_to_sysino()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_DEVINO2SYSINO
+ * ARG0:	devhandle
+ * ARG1:	devino
+ * RET0:	status
+ * RET1:	sysino
+ * ERRORS:	EINVAL		Invalid devhandle/devino
+ *
+ * Converts a device specific interrupt number of the given
+ * devhandle/devino into a system specific ino (sysino).
+ */
+#define HV_FAST_INTR_DEVINO2SYSINO	0xa0
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_devino_to_sysino(unsigned long devhandle,
+					    unsigned long devino);
+#endif
+
+/* intr_getenabled()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_GETENABLED
+ * ARG0:	sysino
+ * RET0:	status
+ * RET1:	intr_enabled (HV_INTR_{DISABLED,ENABLED})
+ * ERRORS:	EINVAL		Invalid sysino
+ *
+ * Returns interrupt enabled state in RET1 for the interrupt defined
+ * by the given sysino.
+ */
+#define HV_FAST_INTR_GETENABLED		0xa1
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_getenabled(unsigned long sysino);
+#endif
+
+/* intr_setenabled()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_SETENABLED
+ * ARG0:	sysino
+ * ARG1:	intr_enabled (HV_INTR_{DISABLED,ENABLED})
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid sysino or intr_enabled value
+ *
+ * Set the 'enabled' state of the interrupt sysino.
+ */
+#define HV_FAST_INTR_SETENABLED		0xa2
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_setenabled(unsigned long sysino, unsigned long intr_enabled);
+#endif
+
+/* intr_getstate()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_GETSTATE
+ * ARG0:	sysino
+ * RET0:	status
+ * RET1:	intr_state (HV_INTR_STATE_*)
+ * ERRORS:	EINVAL		Invalid sysino
+ *
+ * Returns current state of the interrupt defined by the given sysino.
+ */
+#define HV_FAST_INTR_GETSTATE		0xa3
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_getstate(unsigned long sysino);
+#endif
+
+/* intr_setstate()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_SETSTATE
+ * ARG0:	sysino
+ * ARG1:	intr_state (HV_INTR_STATE_*)
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid sysino or intr_state value
+ *
+ * Sets the current state of the interrupt described by the given sysino
+ * value.
+ *
+ * Note: Setting the state to HV_INTR_STATE_IDLE clears any pending
+ *       interrupt for sysino.
+ */
+#define HV_FAST_INTR_SETSTATE		0xa4
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_setstate(unsigned long sysino, unsigned long intr_state);
+#endif
+
+/* intr_gettarget()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_GETTARGET
+ * ARG0:	sysino
+ * RET0:	status
+ * RET1:	cpuid
+ * ERRORS:	EINVAL		Invalid sysino
+ *
+ * Returns CPU that is the current target of the interrupt defined by
+ * the given sysino.  The CPU value returned is undefined if the target
+ * has not been set via intr_settarget().
+ */
+#define HV_FAST_INTR_GETTARGET		0xa5
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_gettarget(unsigned long sysino);
+#endif
+
+/* intr_settarget()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_INTR_SETTARGET
+ * ARG0:	sysino
+ * ARG1:	cpuid
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid sysino
+ *		ENOCPU		Invalid cpuid
+ *
+ * Set the target CPU for the interrupt defined by the given sysino.
+ */
+#define HV_FAST_INTR_SETTARGET		0xa6
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_intr_settarget(unsigned long sysino, unsigned long cpuid);
+#endif
+
+/* vintr_get_cookie()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_GET_COOKIE
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * RET0:	status
+ * RET1:	cookie
+ */
+#define HV_FAST_VINTR_GET_COOKIE	0xa7
+
+/* vintr_set_cookie()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_SET_COOKIE
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * ARG2:	cookie
+ * RET0:	status
+ */
+#define HV_FAST_VINTR_SET_COOKIE	0xa8
+
+/* vintr_get_valid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_GET_VALID
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * RET0:	status
+ * RET1:	valid state
+ */
+#define HV_FAST_VINTR_GET_VALID		0xa9
+
+/* vintr_set_valid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_SET_VALID
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * ARG2:	valid state
+ * RET0:	status
+ */
+#define HV_FAST_VINTR_SET_VALID		0xaa
+
+/* vintr_get_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_GET_STATE
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * RET0:	status
+ * RET1:	state
+ */
+#define HV_FAST_VINTR_GET_STATE		0xab
+
+/* vintr_set_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_SET_STATE
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * ARG2:	state
+ * RET0:	status
+ */
+#define HV_FAST_VINTR_SET_STATE		0xac
+
+/* vintr_get_target()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_GET_TARGET
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * RET0:	status
+ * RET1:	cpuid
+ */
+#define HV_FAST_VINTR_GET_TARGET	0xad
+
+/* vintr_set_target()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_VINTR_SET_TARGET
+ * ARG0:	device handle
+ * ARG1:	device ino
+ * ARG2:	cpuid
+ * RET0:	status
+ */
+#define HV_FAST_VINTR_SET_TARGET	0xae
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_vintr_get_cookie(unsigned long dev_handle,
+					    unsigned long dev_ino,
+					    unsigned long *cookie);
+extern unsigned long sun4v_vintr_set_cookie(unsigned long dev_handle,
+					    unsigned long dev_ino,
+					    unsigned long cookie);
+extern unsigned long sun4v_vintr_get_valid(unsigned long dev_handle,
+					   unsigned long dev_ino,
+					   unsigned long *valid);
+extern unsigned long sun4v_vintr_set_valid(unsigned long dev_handle,
+					   unsigned long dev_ino,
+					   unsigned long valid);
+extern unsigned long sun4v_vintr_get_state(unsigned long dev_handle,
+					   unsigned long dev_ino,
+					   unsigned long *state);
+extern unsigned long sun4v_vintr_set_state(unsigned long dev_handle,
+					   unsigned long dev_ino,
+					   unsigned long state);
+extern unsigned long sun4v_vintr_get_target(unsigned long dev_handle,
+					    unsigned long dev_ino,
+					    unsigned long *cpuid);
+extern unsigned long sun4v_vintr_set_target(unsigned long dev_handle,
+					    unsigned long dev_ino,
+					    unsigned long cpuid);
+#endif
+
+/* PCI IO services.
+ *
+ * See the terminology descriptions in the device interrupt services
+ * section above as those apply here too.  Here are terminology
+ * definitions specific to these PCI IO services:
+ *
+ *	tsbnum		TSB number.  Indentifies which io-tsb is used.
+ *			For this version of the specification, tsbnum
+ *			must be zero.
+ *
+ *	tsbindex	TSB index.  Identifies which entry in the TSB
+ *			is used.  The first entry is zero.
+ *
+ *	tsbid		A 64-bit aligned data structure which contains
+ *			a tsbnum and a tsbindex.  Bits 63:32 contain the
+ *			tsbnum and bits 31:00 contain the tsbindex.
+ *
+ *			Use the HV_PCI_TSBID() macro to construct such
+ * 			values.
+ *
+ *	io_attributes	IO attributes for IOMMU mappings.  One of more
+ *			of the attritbute bits are stores in a 64-bit
+ *			value.  The values are defined below.
+ *
+ *	r_addr		64-bit real address
+ *
+ *	pci_device	PCI device address.  A PCI device address identifies
+ *			a specific device on a specific PCI bus segment.
+ *			A PCI device address ia a 32-bit unsigned integer
+ *			with the following format:
+ *
+ *				00000000.bbbbbbbb.dddddfff.00000000
+ *
+ *			Use the HV_PCI_DEVICE_BUILD() macro to construct
+ *			such values.
+ *
+ *	pci_config_offset
+ *			PCI configureation space offset.  For conventional
+ *			PCI a value between 0 and 255.  For extended
+ *			configuration space, a value between 0 and 4095.
+ *
+ *			Note: For PCI configuration space accesses, the offset
+ *			      must be aligned to the access size.
+ *
+ *	error_flag	A return value which specifies if the action succeeded
+ *			or failed.  0 means no error, non-0 means some error
+ *			occurred while performing the service.
+ *
+ *	io_sync_direction
+ *			Direction definition for pci_dma_sync(), defined
+ *			below in HV_PCI_SYNC_*.
+ *
+ *	io_page_list	A list of io_page_addresses, an io_page_address is
+ *			a real address.
+ *
+ *	io_page_list_p	A pointer to an io_page_list.
+ *
+ *	"size based byte swap" - Some functions do size based byte swapping
+ *				 which allows sw to access pointers and
+ *				 counters in native form when the processor
+ *				 operates in a different endianness than the
+ *				 IO bus.  Size-based byte swapping converts a
+ *				 multi-byte field between big-endian and
+ *				 little-endian format.
+ */
+
+#define HV_PCI_MAP_ATTR_READ		0x01
+#define HV_PCI_MAP_ATTR_WRITE		0x02
+
+#define HV_PCI_DEVICE_BUILD(b,d,f)	\
+	((((b) & 0xff) << 16) | \
+	 (((d) & 0x1f) << 11) | \
+	 (((f) & 0x07) <<  8))
+
+#define HV_PCI_TSBID(__tsb_num, __tsb_index) \
+	((((u64)(__tsb_num)) << 32UL) | ((u64)(__tsb_index)))
+
+#define HV_PCI_SYNC_FOR_DEVICE		0x01
+#define HV_PCI_SYNC_FOR_CPU		0x02
+
+/* pci_iommu_map()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_IOMMU_MAP
+ * ARG0:	devhandle
+ * ARG1:	tsbid
+ * ARG2:	#ttes
+ * ARG3:	io_attributes
+ * ARG4:	io_page_list_p
+ * RET0:	status
+ * RET1:	#ttes mapped
+ * ERRORS:	EINVAL		Invalid devhandle/tsbnum/tsbindex/io_attributes
+ *		EBADALIGN	Improperly aligned real address
+ *		ENORADDR	Invalid real address
+ *
+ * Create IOMMU mappings in the sun4v device defined by the given
+ * devhandle.  The mappings are created in the TSB defined by the
+ * tsbnum component of the given tsbid.  The first mapping is created
+ * in the TSB i ndex defined by the tsbindex component of the given tsbid.
+ * The call creates up to #ttes mappings, the first one at tsbnum, tsbindex,
+ * the second at tsbnum, tsbindex + 1, etc.
+ *
+ * All mappings are created with the attributes defined by the io_attributes
+ * argument.  The page mapping addresses are described in the io_page_list
+ * defined by the given io_page_list_p, which is a pointer to the io_page_list.
+ * The first entry in the io_page_list is the address for the first iotte, the
+ * 2nd for the 2nd iotte, and so on.
+ *
+ * Each io_page_address in the io_page_list must be appropriately aligned.
+ * #ttes must be greater than zero.  For this version of the spec, the tsbnum
+ * component of the given tsbid must be zero.
+ *
+ * Returns the actual number of mappings creates, which may be less than
+ * or equal to the argument #ttes.  If the function returns a value which
+ * is less than the #ttes, the caller may continus to call the function with
+ * an updated tsbid, #ttes, io_page_list_p arguments until all pages are
+ * mapped.
+ *
+ * Note: This function does not imply an iotte cache flush.  The guest must
+ *       demap an entry before re-mapping it.
+ */
+#define HV_FAST_PCI_IOMMU_MAP		0xb0
+
+/* pci_iommu_demap()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_IOMMU_DEMAP
+ * ARG0:	devhandle
+ * ARG1:	tsbid
+ * ARG2:	#ttes
+ * RET0:	status
+ * RET1:	#ttes demapped
+ * ERRORS:	EINVAL		Invalid devhandle/tsbnum/tsbindex
+ *
+ * Demap and flush IOMMU mappings in the device defined by the given
+ * devhandle.  Demaps up to #ttes entries in the TSB defined by the tsbnum
+ * component of the given tsbid, starting at the TSB index defined by the
+ * tsbindex component of the given tsbid.
+ *
+ * For this version of the spec, the tsbnum of the given tsbid must be zero.
+ * #ttes must be greater than zero.
+ *
+ * Returns the actual number of ttes demapped, which may be less than or equal
+ * to the argument #ttes.  If #ttes demapped is less than #ttes, the caller
+ * may continue to call this function with updated tsbid and #ttes arguments
+ * until all pages are demapped.
+ *
+ * Note: Entries do not have to be mapped to be demapped.  A demap of an
+ *       unmapped page will flush the entry from the tte cache.
+ */
+#define HV_FAST_PCI_IOMMU_DEMAP		0xb1
+
+/* pci_iommu_getmap()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_IOMMU_GETMAP
+ * ARG0:	devhandle
+ * ARG1:	tsbid
+ * RET0:	status
+ * RET1:	io_attributes
+ * RET2:	real address
+ * ERRORS:	EINVAL		Invalid devhandle/tsbnum/tsbindex
+ *		ENOMAP		Mapping is not valid, no translation exists
+ *
+ * Read and return the mapping in the device described by the given devhandle
+ * and tsbid.  If successful, the io_attributes shall be returned in RET1
+ * and the page address of the mapping shall be returned in RET2.
+ *
+ * For this version of the spec, the tsbnum component of the given tsbid
+ * must be zero.
+ */
+#define HV_FAST_PCI_IOMMU_GETMAP	0xb2
+
+/* pci_iommu_getbypass()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_IOMMU_GETBYPASS
+ * ARG0:	devhandle
+ * ARG1:	real address
+ * ARG2:	io_attributes
+ * RET0:	status
+ * RET1:	io_addr
+ * ERRORS:	EINVAL		Invalid devhandle/io_attributes
+ *		ENORADDR	Invalid real address
+ *		ENOTSUPPORTED	Function not supported in this implementation.
+ *
+ * Create a "special" mapping in the device described by the given devhandle,
+ * for the given real address and attributes.  Return the IO address in RET1
+ * if successful.
+ */
+#define HV_FAST_PCI_IOMMU_GETBYPASS	0xb3
+
+/* pci_config_get()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_CONFIG_GET
+ * ARG0:	devhandle
+ * ARG1:	pci_device
+ * ARG2:	pci_config_offset
+ * ARG3:	size
+ * RET0:	status
+ * RET1:	error_flag
+ * RET2:	data
+ * ERRORS:	EINVAL		Invalid devhandle/pci_device/offset/size
+ *		EBADALIGN	pci_config_offset not size aligned
+ *		ENOACCESS	Access to this offset is not permitted
+ *
+ * Read PCI configuration space for the adapter described by the given
+ * devhandle.  Read size (1, 2, or 4) bytes of data from the given
+ * pci_device, at pci_config_offset from the beginning of the device's
+ * configuration space.  If there was no error, RET1 is set to zero and
+ * RET2 is set to the data read.  Insignificant bits in RET2 are not
+ * guarenteed to have any specific value and therefore must be ignored.
+ *
+ * The data returned in RET2 is size based byte swapped.
+ *
+ * If an error occurs during the read, set RET1 to a non-zero value.  The
+ * given pci_config_offset must be 'size' aligned.
+ */
+#define HV_FAST_PCI_CONFIG_GET		0xb4
+
+/* pci_config_put()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_CONFIG_PUT
+ * ARG0:	devhandle
+ * ARG1:	pci_device
+ * ARG2:	pci_config_offset
+ * ARG3:	size
+ * ARG4:	data
+ * RET0:	status
+ * RET1:	error_flag
+ * ERRORS:	EINVAL		Invalid devhandle/pci_device/offset/size
+ *		EBADALIGN	pci_config_offset not size aligned
+ *		ENOACCESS	Access to this offset is not permitted
+ *
+ * Write PCI configuration space for the adapter described by the given
+ * devhandle.  Write size (1, 2, or 4) bytes of data in a single operation,
+ * at pci_config_offset from the beginning of the device's configuration
+ * space.  The data argument contains the data to be written to configuration
+ * space.  Prior to writing, the data is size based byte swapped.
+ *
+ * If an error occurs during the write access, do not generate an error
+ * report, do set RET1 to a non-zero value.  Otherwise RET1 is zero.
+ * The given pci_config_offset must be 'size' aligned.
+ *
+ * This function is permitted to read from offset zero in the configuration
+ * space described by the given pci_device if necessary to ensure that the
+ * write access to config space completes.
+ */
+#define HV_FAST_PCI_CONFIG_PUT		0xb5
+
+/* pci_peek()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_PEEK
+ * ARG0:	devhandle
+ * ARG1:	real address
+ * ARG2:	size
+ * RET0:	status
+ * RET1:	error_flag
+ * RET2:	data
+ * ERRORS:	EINVAL		Invalid devhandle or size
+ *		EBADALIGN	Improperly aligned real address
+ *		ENORADDR	Bad real address
+ *		ENOACCESS	Guest access prohibited
+ *
+ * Attempt to read the IO address given by the given devhandle, real address,
+ * and size.  Size must be 1, 2, 4, or 8.  The read is performed as a single
+ * access operation using the given size.  If an error occurs when reading
+ * from the given location, do not generate an error report, but return a
+ * non-zero value in RET1.  If the read was successful, return zero in RET1
+ * and return the actual data read in RET2.  The data returned is size based
+ * byte swapped.
+ *
+ * Non-significant bits in RET2 are not guarenteed to have any specific value
+ * and therefore must be ignored.  If RET1 is returned as non-zero, the data
+ * value is not guarenteed to have any specific value and should be ignored.
+ *
+ * The caller must have permission to read from the given devhandle, real
+ * address, which must be an IO address.  The argument real address must be a
+ * size aligned address.
+ *
+ * The hypervisor implementation of this function must block access to any
+ * IO address that the guest does not have explicit permission to access.
+ */
+#define HV_FAST_PCI_PEEK		0xb6
+
+/* pci_poke()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_POKE
+ * ARG0:	devhandle
+ * ARG1:	real address
+ * ARG2:	size
+ * ARG3:	data
+ * ARG4:	pci_device
+ * RET0:	status
+ * RET1:	error_flag
+ * ERRORS:	EINVAL		Invalid devhandle, size, or pci_device
+ *		EBADALIGN	Improperly aligned real address
+ *		ENORADDR	Bad real address
+ *		ENOACCESS	Guest access prohibited
+ *		ENOTSUPPORTED	Function is not supported by implementation
+ *
+ * Attempt to write data to the IO address given by the given devhandle,
+ * real address, and size.  Size must be 1, 2, 4, or 8.  The write is
+ * performed as a single access operation using the given size. Prior to
+ * writing the data is size based swapped.
+ *
+ * If an error occurs when writing to the given location, do not generate an
+ * error report, but return a non-zero value in RET1.  If the write was
+ * successful, return zero in RET1.
+ *
+ * pci_device describes the configuration address of the device being
+ * written to.  The implementation may safely read from offset 0 with
+ * the configuration space of the device described by devhandle and
+ * pci_device in order to guarantee that the write portion of the operation
+ * completes
+ *
+ * Any error that occurs due to the read shall be reported using the normal
+ * error reporting mechanisms .. the read error is not suppressed.
+ *
+ * The caller must have permission to write to the given devhandle, real
+ * address, which must be an IO address.  The argument real address must be a
+ * size aligned address.  The caller must have permission to read from
+ * the given devhandle, pci_device cofiguration space offset 0.
+ *
+ * The hypervisor implementation of this function must block access to any
+ * IO address that the guest does not have explicit permission to access.
+ */
+#define HV_FAST_PCI_POKE		0xb7
+
+/* pci_dma_sync()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_DMA_SYNC
+ * ARG0:	devhandle
+ * ARG1:	real address
+ * ARG2:	size
+ * ARG3:	io_sync_direction
+ * RET0:	status
+ * RET1:	#synced
+ * ERRORS:	EINVAL		Invalid devhandle or io_sync_direction
+ *		ENORADDR	Bad real address
+ *
+ * Synchronize a memory region described by the given real address and size,
+ * for the device defined by the given devhandle using the direction(s)
+ * defined by the given io_sync_direction.  The argument size is the size of
+ * the memory region in bytes.
+ *
+ * Return the actual number of bytes synchronized in the return value #synced,
+ * which may be less than or equal to the argument size.  If the return
+ * value #synced is less than size, the caller must continue to call this
+ * function with updated real address and size arguments until the entire
+ * memory region is synchronized.
+ */
+#define HV_FAST_PCI_DMA_SYNC		0xb8
+
+/* PCI MSI services.  */
+
+#define HV_MSITYPE_MSI32		0x00
+#define HV_MSITYPE_MSI64		0x01
+
+#define HV_MSIQSTATE_IDLE		0x00
+#define HV_MSIQSTATE_ERROR		0x01
+
+#define HV_MSIQ_INVALID			0x00
+#define HV_MSIQ_VALID			0x01
+
+#define HV_MSISTATE_IDLE		0x00
+#define HV_MSISTATE_DELIVERED		0x01
+
+#define HV_MSIVALID_INVALID		0x00
+#define HV_MSIVALID_VALID		0x01
+
+#define HV_PCIE_MSGTYPE_PME_MSG		0x18
+#define HV_PCIE_MSGTYPE_PME_ACK_MSG	0x1b
+#define HV_PCIE_MSGTYPE_CORR_MSG	0x30
+#define HV_PCIE_MSGTYPE_NONFATAL_MSG	0x31
+#define HV_PCIE_MSGTYPE_FATAL_MSG	0x33
+
+#define HV_MSG_INVALID			0x00
+#define HV_MSG_VALID			0x01
+
+/* pci_msiq_conf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_CONF
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * ARG2:	real address
+ * ARG3:	number of entries
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle, msiqid or nentries
+ *		EBADALIGN	Improperly aligned real address
+ *		ENORADDR	Bad real address
+ *
+ * Configure the MSI queue given by the devhandle and msiqid arguments,
+ * and to be placed at the given real address and be of the given
+ * number of entries.  The real address must be aligned exactly to match
+ * the queue size.  Each queue entry is 64-bytes long, so f.e. a 32 entry
+ * queue must be aligned on a 2048 byte real address boundary.  The MSI-EQ
+ * Head and Tail are initialized so that the MSI-EQ is 'empty'.
+ *
+ * Implementation Note: Certain implementations have fixed sized queues.  In
+ *                      that case, number of entries must contain the correct
+ *                      value.
+ */
+#define HV_FAST_PCI_MSIQ_CONF		0xc0
+
+/* pci_msiq_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_INFO
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * RET0:	status
+ * RET1:	real address
+ * RET2:	number of entries
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid
+ *
+ * Return the configuration information for the MSI queue described
+ * by the given devhandle and msiqid.  The base address of the queue
+ * is returned in ARG1 and the number of entries is returned in ARG2.
+ * If the queue is unconfigured, the real address is undefined and the
+ * number of entries will be returned as zero.
+ */
+#define HV_FAST_PCI_MSIQ_INFO		0xc1
+
+/* pci_msiq_getvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_GETVALID
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * RET0:	status
+ * RET1:	msiqvalid	(HV_MSIQ_VALID or HV_MSIQ_INVALID)
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid
+ *
+ * Get the valid state of the MSI-EQ described by the given devhandle and
+ * msiqid.
+ */
+#define HV_FAST_PCI_MSIQ_GETVALID	0xc2
+
+/* pci_msiq_setvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_SETVALID
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * ARG2:	msiqvalid	(HV_MSIQ_VALID or HV_MSIQ_INVALID)
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid or msiqvalid
+ *				value or MSI EQ is uninitialized
+ *
+ * Set the valid state of the MSI-EQ described by the given devhandle and
+ * msiqid to the given msiqvalid.
+ */
+#define HV_FAST_PCI_MSIQ_SETVALID	0xc3
+
+/* pci_msiq_getstate()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_GETSTATE
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * RET0:	status
+ * RET1:	msiqstate	(HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR)
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid
+ *
+ * Get the state of the MSI-EQ described by the given devhandle and
+ * msiqid.
+ */
+#define HV_FAST_PCI_MSIQ_GETSTATE	0xc4
+
+/* pci_msiq_getvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_GETVALID
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * ARG2:	msiqstate	(HV_MSIQSTATE_IDLE or HV_MSIQSTATE_ERROR)
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid or msiqstate
+ *				value or MSI EQ is uninitialized
+ *
+ * Set the state of the MSI-EQ described by the given devhandle and
+ * msiqid to the given msiqvalid.
+ */
+#define HV_FAST_PCI_MSIQ_SETSTATE	0xc5
+
+/* pci_msiq_gethead()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_GETHEAD
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * RET0:	status
+ * RET1:	msiqhead
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid
+ *
+ * Get the current MSI EQ queue head for the MSI-EQ described by the
+ * given devhandle and msiqid.
+ */
+#define HV_FAST_PCI_MSIQ_GETHEAD	0xc6
+
+/* pci_msiq_sethead()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_SETHEAD
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * ARG2:	msiqhead
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid or msiqhead,
+ *				or MSI EQ is uninitialized
+ *
+ * Set the current MSI EQ queue head for the MSI-EQ described by the
+ * given devhandle and msiqid.
+ */
+#define HV_FAST_PCI_MSIQ_SETHEAD	0xc7
+
+/* pci_msiq_gettail()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSIQ_GETTAIL
+ * ARG0:	devhandle
+ * ARG1:	msiqid
+ * RET0:	status
+ * RET1:	msiqtail
+ * ERRORS:	EINVAL		Invalid devhandle or msiqid
+ *
+ * Get the current MSI EQ queue tail for the MSI-EQ described by the
+ * given devhandle and msiqid.
+ */
+#define HV_FAST_PCI_MSIQ_GETTAIL	0xc8
+
+/* pci_msi_getvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_GETVALID
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * RET0:	status
+ * RET1:	msivalidstate
+ * ERRORS:	EINVAL		Invalid devhandle or msinum
+ *
+ * Get the current valid/enabled state for the MSI defined by the
+ * given devhandle and msinum.
+ */
+#define HV_FAST_PCI_MSI_GETVALID	0xc9
+
+/* pci_msi_setvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_SETVALID
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * ARG2:	msivalidstate
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msinum or msivalidstate
+ *
+ * Set the current valid/enabled state for the MSI defined by the
+ * given devhandle and msinum.
+ */
+#define HV_FAST_PCI_MSI_SETVALID	0xca
+
+/* pci_msi_getmsiq()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_GETMSIQ
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * RET0:	status
+ * RET1:	msiqid
+ * ERRORS:	EINVAL		Invalid devhandle or msinum or MSI is unbound
+ *
+ * Get the MSI EQ that the MSI defined by the given devhandle and
+ * msinum is bound to.
+ */
+#define HV_FAST_PCI_MSI_GETMSIQ		0xcb
+
+/* pci_msi_setmsiq()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_SETMSIQ
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * ARG2:	msitype
+ * ARG3:	msiqid
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msinum or msiqid
+ *
+ * Set the MSI EQ that the MSI defined by the given devhandle and
+ * msinum is bound to.
+ */
+#define HV_FAST_PCI_MSI_SETMSIQ		0xcc
+
+/* pci_msi_getstate()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_GETSTATE
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * RET0:	status
+ * RET1:	msistate
+ * ERRORS:	EINVAL		Invalid devhandle or msinum
+ *
+ * Get the state of the MSI defined by the given devhandle and msinum.
+ * If not initialized, return HV_MSISTATE_IDLE.
+ */
+#define HV_FAST_PCI_MSI_GETSTATE	0xcd
+
+/* pci_msi_setstate()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSI_SETSTATE
+ * ARG0:	devhandle
+ * ARG1:	msinum
+ * ARG2:	msistate
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msinum or msistate
+ *
+ * Set the state of the MSI defined by the given devhandle and msinum.
+ */
+#define HV_FAST_PCI_MSI_SETSTATE	0xce
+
+/* pci_msg_getmsiq()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSG_GETMSIQ
+ * ARG0:	devhandle
+ * ARG1:	msgtype
+ * RET0:	status
+ * RET1:	msiqid
+ * ERRORS:	EINVAL		Invalid devhandle or msgtype
+ *
+ * Get the MSI EQ of the MSG defined by the given devhandle and msgtype.
+ */
+#define HV_FAST_PCI_MSG_GETMSIQ		0xd0
+
+/* pci_msg_setmsiq()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSG_SETMSIQ
+ * ARG0:	devhandle
+ * ARG1:	msgtype
+ * ARG2:	msiqid
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle, msgtype, or msiqid
+ *
+ * Set the MSI EQ of the MSG defined by the given devhandle and msgtype.
+ */
+#define HV_FAST_PCI_MSG_SETMSIQ		0xd1
+
+/* pci_msg_getvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSG_GETVALID
+ * ARG0:	devhandle
+ * ARG1:	msgtype
+ * RET0:	status
+ * RET1:	msgvalidstate
+ * ERRORS:	EINVAL		Invalid devhandle or msgtype
+ *
+ * Get the valid/enabled state of the MSG defined by the given
+ * devhandle and msgtype.
+ */
+#define HV_FAST_PCI_MSG_GETVALID	0xd2
+
+/* pci_msg_setvalid()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_PCI_MSG_SETVALID
+ * ARG0:	devhandle
+ * ARG1:	msgtype
+ * ARG2:	msgvalidstate
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid devhandle or msgtype or msgvalidstate
+ *
+ * Set the valid/enabled state of the MSG defined by the given
+ * devhandle and msgtype.
+ */
+#define HV_FAST_PCI_MSG_SETVALID	0xd3
+
+/* Logical Domain Channel services.  */
+
+#define LDC_CHANNEL_DOWN		0
+#define LDC_CHANNEL_UP			1
+#define LDC_CHANNEL_RESETTING		2
+
+/* ldc_tx_qconf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_TX_QCONF
+ * ARG0:	channel ID
+ * ARG1:	real address base of queue
+ * ARG2:	num entries in queue
+ * RET0:	status
+ *
+ * Configure transmit queue for the LDC endpoint specified by the
+ * given channel ID, to be placed at the given real address, and
+ * be of the given num entries.  Num entries must be a power of two.
+ * The real address base of the queue must be aligned on the queue
+ * size.  Each queue entry is 64-bytes, so for example, a 32 entry
+ * queue must be aligned on a 2048 byte real address boundary.
+ *
+ * Upon configuration of a valid transmit queue the head and tail
+ * pointers are set to a hypervisor specific identical value indicating
+ * that the queue initially is empty.
+ *
+ * The endpoint's transmit queue is un-configured if num entries is zero.
+ *
+ * The maximum number of entries for each queue for a specific cpu may be
+ * determined from the machine description.  A transmit queue may be
+ * specified even in the event that the LDC is down (peer endpoint has no
+ * receive queue specified).  Transmission will begin as soon as the peer
+ * endpoint defines a receive queue.
+ *
+ * It is recommended that a guest wait for a transmit queue to empty prior
+ * to reconfiguring it, or un-configuring it.  Re or un-configuring of a
+ * non-empty transmit queue behaves exactly as defined above, however it
+ * is undefined as to how many of the pending entries in the original queue
+ * will be delivered prior to the re-configuration taking effect.
+ * Furthermore, as the queue configuration causes a reset of the head and
+ * tail pointers there is no way for a guest to determine how many entries
+ * have been sent after the configuration operation.
+ */
+#define HV_FAST_LDC_TX_QCONF		0xe0
+
+/* ldc_tx_qinfo()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_TX_QINFO
+ * ARG0:	channel ID
+ * RET0:	status
+ * RET1:	real address base of queue
+ * RET2:	num entries in queue
+ *
+ * Return the configuration info for the transmit queue of LDC endpoint
+ * defined by the given channel ID.  The real address is the currently
+ * defined real address base of the defined queue, and num entries is the
+ * size of the queue in terms of number of entries.
+ *
+ * If the specified channel ID is a valid endpoint number, but no transmit
+ * queue has been defined this service will return success, but with num
+ * entries set to zero and the real address will have an undefined value.
+ */
+#define HV_FAST_LDC_TX_QINFO		0xe1
+
+/* ldc_tx_get_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_TX_GET_STATE
+ * ARG0:	channel ID
+ * RET0:	status
+ * RET1:	head offset
+ * RET2:	tail offset
+ * RET3:	channel state
+ *
+ * Return the transmit state, and the head and tail queue pointers, for
+ * the transmit queue of the LDC endpoint defined by the given channel ID.
+ * The head and tail values are the byte offset of the head and tail
+ * positions of the transmit queue for the specified endpoint.
+ */
+#define HV_FAST_LDC_TX_GET_STATE	0xe2
+
+/* ldc_tx_set_qtail()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_TX_SET_QTAIL
+ * ARG0:	channel ID
+ * ARG1:	tail offset
+ * RET0:	status
+ *
+ * Update the tail pointer for the transmit queue associated with the LDC
+ * endpoint defined by the given channel ID.  The tail offset specified
+ * must be aligned on a 64 byte boundary, and calculated so as to increase
+ * the number of pending entries on the transmit queue.  Any attempt to
+ * decrease the number of pending transmit queue entires is considered
+ * an invalid tail offset and will result in an EINVAL error.
+ *
+ * Since the tail of the transmit queue may not be moved backwards, the
+ * transmit queue may be flushed by configuring a new transmit queue,
+ * whereupon the hypervisor will configure the initial transmit head and
+ * tail pointers to be equal.
+ */
+#define HV_FAST_LDC_TX_SET_QTAIL	0xe3
+
+/* ldc_rx_qconf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_RX_QCONF
+ * ARG0:	channel ID
+ * ARG1:	real address base of queue
+ * ARG2:	num entries in queue
+ * RET0:	status
+ *
+ * Configure receive queue for the LDC endpoint specified by the
+ * given channel ID, to be placed at the given real address, and
+ * be of the given num entries.  Num entries must be a power of two.
+ * The real address base of the queue must be aligned on the queue
+ * size.  Each queue entry is 64-bytes, so for example, a 32 entry
+ * queue must be aligned on a 2048 byte real address boundary.
+ *
+ * The endpoint's transmit queue is un-configured if num entries is zero.
+ *
+ * If a valid receive queue is specified for a local endpoint the LDC is
+ * in the up state for the purpose of transmission to this endpoint.
+ *
+ * The maximum number of entries for each queue for a specific cpu may be
+ * determined from the machine description.
+ *
+ * As receive queue configuration causes a reset of the queue's head and
+ * tail pointers there is no way for a gues to determine how many entries
+ * have been received between a preceeding ldc_get_rx_state() API call
+ * and the completion of the configuration operation.  It should be noted
+ * that datagram delivery is not guarenteed via domain channels anyway,
+ * and therefore any higher protocol should be resilient to datagram
+ * loss if necessary.  However, to overcome this specific race potential
+ * it is recommended, for example, that a higher level protocol be employed
+ * to ensure either retransmission, or ensure that no datagrams are pending
+ * on the peer endpoint's transmit queue prior to the configuration process.
+ */
+#define HV_FAST_LDC_RX_QCONF		0xe4
+
+/* ldc_rx_qinfo()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_RX_QINFO
+ * ARG0:	channel ID
+ * RET0:	status
+ * RET1:	real address base of queue
+ * RET2:	num entries in queue
+ *
+ * Return the configuration info for the receive queue of LDC endpoint
+ * defined by the given channel ID.  The real address is the currently
+ * defined real address base of the defined queue, and num entries is the
+ * size of the queue in terms of number of entries.
+ *
+ * If the specified channel ID is a valid endpoint number, but no receive
+ * queue has been defined this service will return success, but with num
+ * entries set to zero and the real address will have an undefined value.
+ */
+#define HV_FAST_LDC_RX_QINFO		0xe5
+
+/* ldc_rx_get_state()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_RX_GET_STATE
+ * ARG0:	channel ID
+ * RET0:	status
+ * RET1:	head offset
+ * RET2:	tail offset
+ * RET3:	channel state
+ *
+ * Return the receive state, and the head and tail queue pointers, for
+ * the receive queue of the LDC endpoint defined by the given channel ID.
+ * The head and tail values are the byte offset of the head and tail
+ * positions of the receive queue for the specified endpoint.
+ */
+#define HV_FAST_LDC_RX_GET_STATE	0xe6
+
+/* ldc_rx_set_qhead()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_RX_SET_QHEAD
+ * ARG0:	channel ID
+ * ARG1:	head offset
+ * RET0:	status
+ *
+ * Update the head pointer for the receive queue associated with the LDC
+ * endpoint defined by the given channel ID.  The head offset specified
+ * must be aligned on a 64 byte boundary, and calculated so as to decrease
+ * the number of pending entries on the receive queue.  Any attempt to
+ * increase the number of pending receive queue entires is considered
+ * an invalid head offset and will result in an EINVAL error.
+ *
+ * The receive queue may be flushed by setting the head offset equal
+ * to the current tail offset.
+ */
+#define HV_FAST_LDC_RX_SET_QHEAD	0xe7
+
+/* LDC Map Table Entry.  Each slot is defined by a translation table
+ * entry, as specified by the LDC_MTE_* bits below, and a 64-bit
+ * hypervisor invalidation cookie.
+ */
+#define LDC_MTE_PADDR	0x0fffffffffffe000 /* pa[55:13]          */
+#define LDC_MTE_COPY_W	0x0000000000000400 /* copy write access  */
+#define LDC_MTE_COPY_R	0x0000000000000200 /* copy read access   */
+#define LDC_MTE_IOMMU_W	0x0000000000000100 /* IOMMU write access */
+#define LDC_MTE_IOMMU_R	0x0000000000000080 /* IOMMU read access  */
+#define LDC_MTE_EXEC	0x0000000000000040 /* execute            */
+#define LDC_MTE_WRITE	0x0000000000000020 /* read               */
+#define LDC_MTE_READ	0x0000000000000010 /* write              */
+#define LDC_MTE_SZALL	0x000000000000000f /* page size bits     */
+#define LDC_MTE_SZ16GB	0x0000000000000007 /* 16GB page          */
+#define LDC_MTE_SZ2GB	0x0000000000000006 /* 2GB page           */
+#define LDC_MTE_SZ256MB	0x0000000000000005 /* 256MB page         */
+#define LDC_MTE_SZ32MB	0x0000000000000004 /* 32MB page          */
+#define LDC_MTE_SZ4MB	0x0000000000000003 /* 4MB page           */
+#define LDC_MTE_SZ512K	0x0000000000000002 /* 512K page          */
+#define LDC_MTE_SZ64K	0x0000000000000001 /* 64K page           */
+#define LDC_MTE_SZ8K	0x0000000000000000 /* 8K page            */
+
+#ifndef __ASSEMBLY__
+struct ldc_mtable_entry {
+	unsigned long	mte;
+	unsigned long	cookie;
+};
+#endif
+
+/* ldc_set_map_table()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_SET_MAP_TABLE
+ * ARG0:	channel ID
+ * ARG1:	table real address
+ * ARG2:	num entries
+ * RET0:	status
+ *
+ * Register the MTE table at the given table real address, with the
+ * specified num entries, for the LDC indicated by the given channel
+ * ID.
+ */
+#define HV_FAST_LDC_SET_MAP_TABLE	0xea
+
+/* ldc_get_map_table()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_GET_MAP_TABLE
+ * ARG0:	channel ID
+ * RET0:	status
+ * RET1:	table real address
+ * RET2:	num entries
+ *
+ * Return the configuration of the current mapping table registered
+ * for the given channel ID.
+ */
+#define HV_FAST_LDC_GET_MAP_TABLE	0xeb
+
+#define LDC_COPY_IN	0
+#define LDC_COPY_OUT	1
+
+/* ldc_copy()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_COPY
+ * ARG0:	channel ID
+ * ARG1:	LDC_COPY_* direction code
+ * ARG2:	target real address
+ * ARG3:	local real address
+ * ARG4:	length in bytes
+ * RET0:	status
+ * RET1:	actual length in bytes
+ */
+#define HV_FAST_LDC_COPY		0xec
+
+#define LDC_MEM_READ	1
+#define LDC_MEM_WRITE	2
+#define LDC_MEM_EXEC	4
+
+/* ldc_mapin()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_MAPIN
+ * ARG0:	channel ID
+ * ARG1:	cookie
+ * RET0:	status
+ * RET1:	real address
+ * RET2:	LDC_MEM_* permissions
+ */
+#define HV_FAST_LDC_MAPIN		0xed
+
+/* ldc_unmap()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_UNMAP
+ * ARG0:	real address
+ * RET0:	status
+ */
+#define HV_FAST_LDC_UNMAP		0xee
+
+/* ldc_revoke()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_LDC_REVOKE
+ * ARG0:	channel ID
+ * ARG1:	cookie
+ * ARG2:	ldc_mtable_entry cookie
+ * RET0:	status
+ */
+#define HV_FAST_LDC_REVOKE		0xef
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_ldc_tx_qconf(unsigned long channel,
+					unsigned long ra,
+					unsigned long num_entries);
+extern unsigned long sun4v_ldc_tx_qinfo(unsigned long channel,
+					unsigned long *ra,
+					unsigned long *num_entries);
+extern unsigned long sun4v_ldc_tx_get_state(unsigned long channel,
+					    unsigned long *head_off,
+					    unsigned long *tail_off,
+					    unsigned long *chan_state);
+extern unsigned long sun4v_ldc_tx_set_qtail(unsigned long channel,
+					    unsigned long tail_off);
+extern unsigned long sun4v_ldc_rx_qconf(unsigned long channel,
+					unsigned long ra,
+					unsigned long num_entries);
+extern unsigned long sun4v_ldc_rx_qinfo(unsigned long channel,
+					unsigned long *ra,
+					unsigned long *num_entries);
+extern unsigned long sun4v_ldc_rx_get_state(unsigned long channel,
+					    unsigned long *head_off,
+					    unsigned long *tail_off,
+					    unsigned long *chan_state);
+extern unsigned long sun4v_ldc_rx_set_qhead(unsigned long channel,
+					    unsigned long head_off);
+extern unsigned long sun4v_ldc_set_map_table(unsigned long channel,
+					     unsigned long ra,
+					     unsigned long num_entries);
+extern unsigned long sun4v_ldc_get_map_table(unsigned long channel,
+					     unsigned long *ra,
+					     unsigned long *num_entries);
+extern unsigned long sun4v_ldc_copy(unsigned long channel,
+				    unsigned long dir_code,
+				    unsigned long tgt_raddr,
+				    unsigned long lcl_raddr,
+				    unsigned long len,
+				    unsigned long *actual_len);
+extern unsigned long sun4v_ldc_mapin(unsigned long channel,
+				     unsigned long cookie,
+				     unsigned long *ra,
+				     unsigned long *perm);
+extern unsigned long sun4v_ldc_unmap(unsigned long ra);
+extern unsigned long sun4v_ldc_revoke(unsigned long channel,
+				      unsigned long cookie,
+				      unsigned long mte_cookie);
+#endif
+
+/* Performance counter services.  */
+
+#define HV_PERF_JBUS_PERF_CTRL_REG	0x00
+#define HV_PERF_JBUS_PERF_CNT_REG	0x01
+#define HV_PERF_DRAM_PERF_CTRL_REG_0	0x02
+#define HV_PERF_DRAM_PERF_CNT_REG_0	0x03
+#define HV_PERF_DRAM_PERF_CTRL_REG_1	0x04
+#define HV_PERF_DRAM_PERF_CNT_REG_1	0x05
+#define HV_PERF_DRAM_PERF_CTRL_REG_2	0x06
+#define HV_PERF_DRAM_PERF_CNT_REG_2	0x07
+#define HV_PERF_DRAM_PERF_CTRL_REG_3	0x08
+#define HV_PERF_DRAM_PERF_CNT_REG_3	0x09
+
+/* get_perfreg()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_GET_PERFREG
+ * ARG0:	performance reg number
+ * RET0:	status
+ * RET1:	performance reg value
+ * ERRORS:	EINVAL		Invalid performance register number
+ *		ENOACCESS	No access allowed to performance counters
+ *
+ * Read the value of the given DRAM/JBUS performance counter/control register.
+ */
+#define HV_FAST_GET_PERFREG		0x100
+
+/* set_perfreg()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_SET_PERFREG
+ * ARG0:	performance reg number
+ * ARG1:	performance reg value
+ * RET0:	status
+ * ERRORS:	EINVAL		Invalid performance register number
+ *		ENOACCESS	No access allowed to performance counters
+ *
+ * Write the given performance reg value to the given DRAM/JBUS
+ * performance counter/control register.
+ */
+#define HV_FAST_SET_PERFREG		0x101
+
+/* MMU statistics services.
+ *
+ * The hypervisor maintains MMU statistics and privileged code provides
+ * a buffer where these statistics can be collected.  It is continually
+ * updated once configured.  The layout is as follows:
+ */
+#ifndef __ASSEMBLY__
+struct hv_mmu_statistics {
+	unsigned long immu_tsb_hits_ctx0_8k_tte;
+	unsigned long immu_tsb_ticks_ctx0_8k_tte;
+	unsigned long immu_tsb_hits_ctx0_64k_tte;
+	unsigned long immu_tsb_ticks_ctx0_64k_tte;
+	unsigned long __reserved1[2];
+	unsigned long immu_tsb_hits_ctx0_4mb_tte;
+	unsigned long immu_tsb_ticks_ctx0_4mb_tte;
+	unsigned long __reserved2[2];
+	unsigned long immu_tsb_hits_ctx0_256mb_tte;
+	unsigned long immu_tsb_ticks_ctx0_256mb_tte;
+	unsigned long __reserved3[4];
+	unsigned long immu_tsb_hits_ctxnon0_8k_tte;
+	unsigned long immu_tsb_ticks_ctxnon0_8k_tte;
+	unsigned long immu_tsb_hits_ctxnon0_64k_tte;
+	unsigned long immu_tsb_ticks_ctxnon0_64k_tte;
+	unsigned long __reserved4[2];
+	unsigned long immu_tsb_hits_ctxnon0_4mb_tte;
+	unsigned long immu_tsb_ticks_ctxnon0_4mb_tte;
+	unsigned long __reserved5[2];
+	unsigned long immu_tsb_hits_ctxnon0_256mb_tte;
+	unsigned long immu_tsb_ticks_ctxnon0_256mb_tte;
+	unsigned long __reserved6[4];
+	unsigned long dmmu_tsb_hits_ctx0_8k_tte;
+	unsigned long dmmu_tsb_ticks_ctx0_8k_tte;
+	unsigned long dmmu_tsb_hits_ctx0_64k_tte;
+	unsigned long dmmu_tsb_ticks_ctx0_64k_tte;
+	unsigned long __reserved7[2];
+	unsigned long dmmu_tsb_hits_ctx0_4mb_tte;
+	unsigned long dmmu_tsb_ticks_ctx0_4mb_tte;
+	unsigned long __reserved8[2];
+	unsigned long dmmu_tsb_hits_ctx0_256mb_tte;
+	unsigned long dmmu_tsb_ticks_ctx0_256mb_tte;
+	unsigned long __reserved9[4];
+	unsigned long dmmu_tsb_hits_ctxnon0_8k_tte;
+	unsigned long dmmu_tsb_ticks_ctxnon0_8k_tte;
+	unsigned long dmmu_tsb_hits_ctxnon0_64k_tte;
+	unsigned long dmmu_tsb_ticks_ctxnon0_64k_tte;
+	unsigned long __reserved10[2];
+	unsigned long dmmu_tsb_hits_ctxnon0_4mb_tte;
+	unsigned long dmmu_tsb_ticks_ctxnon0_4mb_tte;
+	unsigned long __reserved11[2];
+	unsigned long dmmu_tsb_hits_ctxnon0_256mb_tte;
+	unsigned long dmmu_tsb_ticks_ctxnon0_256mb_tte;
+	unsigned long __reserved12[4];
+};
+#endif
+
+/* mmustat_conf()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMUSTAT_CONF
+ * ARG0:	real address
+ * RET0:	status
+ * RET1:	real address
+ * ERRORS:	ENORADDR	Invalid real address
+ *		EBADALIGN	Real address not aligned on 64-byte boundary
+ *		EBADTRAP	API not supported on this processor
+ *
+ * Enable MMU statistic gathering using the buffer at the given real
+ * address on the current virtual CPU.  The new buffer real address
+ * is given in ARG1, and the previously specified buffer real address
+ * is returned in RET1, or is returned as zero for the first invocation.
+ *
+ * If the passed in real address argument is zero, this will disable
+ * MMU statistic collection on the current virtual CPU.  If an error is
+ * returned then no statistics are collected.
+ *
+ * The buffer contents should be initialized to all zeros before being
+ * given to the hypervisor or else the statistics will be meaningless.
+ */
+#define HV_FAST_MMUSTAT_CONF		0x102
+
+/* mmustat_info()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_MMUSTAT_INFO
+ * RET0:	status
+ * RET1:	real address
+ * ERRORS:	EBADTRAP	API not supported on this processor
+ *
+ * Return the current state and real address of the currently configured
+ * MMU statistics buffer on the current virtual CPU.
+ */
+#define HV_FAST_MMUSTAT_INFO		0x103
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mmustat_conf(unsigned long ra, unsigned long *orig_ra);
+extern unsigned long sun4v_mmustat_info(unsigned long *ra);
+#endif
+
+/* NCS crypto services  */
+
+/* ncs_request() sub-function numbers */
+#define HV_NCS_QCONF			0x01
+#define HV_NCS_QTAIL_UPDATE		0x02
+
+#ifndef __ASSEMBLY__
+struct hv_ncs_queue_entry {
+	/* MAU Control Register */
+	unsigned long	mau_control;
+#define MAU_CONTROL_INV_PARITY	0x0000000000002000
+#define MAU_CONTROL_STRAND	0x0000000000001800
+#define MAU_CONTROL_BUSY	0x0000000000000400
+#define MAU_CONTROL_INT		0x0000000000000200
+#define MAU_CONTROL_OP		0x00000000000001c0
+#define MAU_CONTROL_OP_SHIFT	6
+#define MAU_OP_LOAD_MA_MEMORY	0x0
+#define MAU_OP_STORE_MA_MEMORY	0x1
+#define MAU_OP_MODULAR_MULT	0x2
+#define MAU_OP_MODULAR_REDUCE	0x3
+#define MAU_OP_MODULAR_EXP_LOOP	0x4
+#define MAU_CONTROL_LEN		0x000000000000003f
+#define MAU_CONTROL_LEN_SHIFT	0
+
+	/* Real address of bytes to load or store bytes
+	 * into/out-of the MAU.
+	 */
+	unsigned long	mau_mpa;
+
+	/* Modular Arithmetic MA Offset Register.  */
+	unsigned long	mau_ma;
+
+	/* Modular Arithmetic N Prime Register.  */
+	unsigned long	mau_np;
+};
+
+struct hv_ncs_qconf_arg {
+	unsigned long	mid;      /* MAU ID, 1 per core on Niagara */
+	unsigned long	base;     /* Real address base of queue */
+	unsigned long	end;	  /* Real address end of queue */
+	unsigned long	num_ents; /* Number of entries in queue */
+};
+
+struct hv_ncs_qtail_update_arg {
+	unsigned long	mid;      /* MAU ID, 1 per core on Niagara */
+	unsigned long	tail;     /* New tail index to use */
+	unsigned long	syncflag; /* only SYNCFLAG_SYNC is implemented */
+#define HV_NCS_SYNCFLAG_SYNC	0x00
+#define HV_NCS_SYNCFLAG_ASYNC	0x01
+};
+#endif
+
+/* ncs_request()
+ * TRAP:	HV_FAST_TRAP
+ * FUNCTION:	HV_FAST_NCS_REQUEST
+ * ARG0:	NCS sub-function
+ * ARG1:	sub-function argument real address
+ * ARG2:	size in bytes of sub-function argument
+ * RET0:	status
+ *
+ * The MAU chip of the Niagara processor is not directly accessible
+ * to privileged code, instead it is programmed indirectly via this
+ * hypervisor API.
+ *
+ * The interfaces defines a queue of MAU operations to perform.
+ * Privileged code registers a queue with the hypervisor by invoking
+ * this HVAPI with the HV_NCS_QCONF sub-function, which defines the
+ * base, end, and number of entries of the queue.  Each queue entry
+ * contains a MAU register struct block.
+ *
+ * The privileged code then proceeds to add entries to the queue and
+ * then invoke the HV_NCS_QTAIL_UPDATE sub-function.  Since only
+ * synchronous operations are supported by the current hypervisor,
+ * HV_NCS_QTAIL_UPDATE will run all the pending queue entries to
+ * completion and return HV_EOK, or return an error code.
+ *
+ * The real address of the sub-function argument must be aligned on at
+ * least an 8-byte boundary.
+ *
+ * The tail argument of HV_NCS_QTAIL_UPDATE is an index, not a byte
+ * offset, into the queue and must be less than or equal the 'num_ents'
+ * argument given in the HV_NCS_QCONF call.
+ */
+#define HV_FAST_NCS_REQUEST		0x110
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_ncs_request(unsigned long request,
+				       unsigned long arg_ra,
+				       unsigned long arg_size);
+#endif
+
+#define HV_FAST_FIRE_GET_PERFREG	0x120
+#define HV_FAST_FIRE_SET_PERFREG	0x121
+
+/* Function numbers for HV_CORE_TRAP.  */
+#define HV_CORE_SET_VER			0x00
+#define HV_CORE_PUTCHAR			0x01
+#define HV_CORE_EXIT			0x02
+#define HV_CORE_GET_VER			0x03
+
+/* Hypervisor API groups for use with HV_CORE_SET_VER and
+ * HV_CORE_GET_VER.
+ */
+#define HV_GRP_SUN4V			0x0000
+#define HV_GRP_CORE			0x0001
+#define HV_GRP_INTR			0x0002
+#define HV_GRP_SOFT_STATE		0x0003
+#define HV_GRP_PCI			0x0100
+#define HV_GRP_LDOM			0x0101
+#define HV_GRP_SVC_CHAN			0x0102
+#define HV_GRP_NCS			0x0103
+#define HV_GRP_RNG			0x0104
+#define HV_GRP_NIAG_PERF		0x0200
+#define HV_GRP_FIRE_PERF		0x0201
+#define HV_GRP_N2_CPU			0x0202
+#define HV_GRP_NIU			0x0204
+#define HV_GRP_VF_CPU			0x0205
+#define HV_GRP_DIAG			0x0300
+
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_get_version(unsigned long group,
+				       unsigned long *major,
+				       unsigned long *minor);
+extern unsigned long sun4v_set_version(unsigned long group,
+				       unsigned long major,
+				       unsigned long minor,
+				       unsigned long *actual_minor);
+
+extern int sun4v_hvapi_register(unsigned long group, unsigned long major,
+				unsigned long *minor);
+extern void sun4v_hvapi_unregister(unsigned long group);
+extern int sun4v_hvapi_get(unsigned long group,
+			   unsigned long *major,
+			   unsigned long *minor);
+extern void sun4v_hvapi_init(void);
+#endif
+
+#endif /* !(_SPARC64_HYPERVISOR_H) */