include/asm-powerpc/hvcall.h - linux/kernel/git/bpf/bpf-next - Git at Google

 #ifndef _ASM_POWERPC_HVCALL_H
 #define _ASM_POWERPC_HVCALL_H
 #ifdef __KERNEL__

 #define HVSC			.long 0x44000022

 #define H_SUCCESS	0
 #define H_BUSY		1	/* Hardware busy -- retry later */
 #define H_CLOSED	2	/* Resource closed */
 #define H_NOT_AVAILABLE 3
 #define H_CONSTRAINED	4	/* Resource request constrained to max allowed */
 #define H_PARTIAL       5
 #define H_IN_PROGRESS	14	/* Kind of like busy */
 #define H_PAGE_REGISTERED 15
 #define H_PARTIAL_STORE   16
 #define H_PENDING	17	/* returned from H_POLL_PENDING */
 #define H_CONTINUE	18	/* Returned from H_Join on success */
 #define H_LONG_BUSY_START_RANGE		9900  /* Start of long busy range */
 #define H_LONG_BUSY_ORDER_1_MSEC	9900  /* Long busy, hint that 1msec \
 						 is a good time to retry */
 #define H_LONG_BUSY_ORDER_10_MSEC	9901  /* Long busy, hint that 10msec \
 						 is a good time to retry */
 #define H_LONG_BUSY_ORDER_100_MSEC 	9902  /* Long busy, hint that 100msec \
 						 is a good time to retry */
 #define H_LONG_BUSY_ORDER_1_SEC		9903  /* Long busy, hint that 1sec \
 						 is a good time to retry */
 #define H_LONG_BUSY_ORDER_10_SEC	9904  /* Long busy, hint that 10sec \
 						 is a good time to retry */
 #define H_LONG_BUSY_ORDER_100_SEC	9905  /* Long busy, hint that 100sec \
 						 is a good time to retry */
 #define H_LONG_BUSY_END_RANGE		9905  /* End of long busy range */
 #define H_HARDWARE	-1	/* Hardware error */
 #define H_FUNCTION	-2	/* Function not supported */
 #define H_PRIVILEGE	-3	/* Caller not privileged */
 #define H_PARAMETER	-4	/* Parameter invalid, out-of-range or conflicting */
 #define H_BAD_MODE	-5	/* Illegal msr value */
 #define H_PTEG_FULL	-6	/* PTEG is full */
 #define H_NOT_FOUND	-7	/* PTE was not found" */
 #define H_RESERVED_DABR	-8	/* DABR address is reserved by the hypervisor on this processor" */
 #define H_NO_MEM	-9
 #define H_AUTHORITY	-10
 #define H_PERMISSION	-11
 #define H_DROPPED	-12
 #define H_SOURCE_PARM	-13
 #define H_DEST_PARM	-14
 #define H_REMOTE_PARM	-15
 #define H_RESOURCE	-16
 #define H_ADAPTER_PARM  -17
 #define H_RH_PARM       -18
 #define H_RCQ_PARM      -19
 #define H_SCQ_PARM      -20
 #define H_EQ_PARM       -21
 #define H_RT_PARM       -22
 #define H_ST_PARM       -23
 #define H_SIGT_PARM     -24
 #define H_TOKEN_PARM    -25
 #define H_MLENGTH_PARM  -27
 #define H_MEM_PARM      -28
 #define H_MEM_ACCESS_PARM -29
 #define H_ATTR_PARM     -30
 #define H_PORT_PARM     -31
 #define H_MCG_PARM      -32
 #define H_VL_PARM       -33
 #define H_TSIZE_PARM    -34
 #define H_TRACE_PARM    -35

 #define H_MASK_PARM     -37
 #define H_MCG_FULL      -38
 #define H_ALIAS_EXIST   -39
 #define H_P_COUNTER     -40
 #define H_TABLE_FULL    -41
 #define H_ALT_TABLE     -42
 #define H_MR_CONDITION  -43
 #define H_NOT_ENOUGH_RESOURCES -44
 #define H_R_STATE       -45
 #define H_RESCINDEND    -46


 /* Long Busy is a condition that can be returned by the firmware
  * when a call cannot be completed now, but the identical call
  * should be retried later.  This prevents calls blocking in the
  * firmware for long periods of time.  Annoyingly the firmware can return
  * a range of return codes, hinting at how long we should wait before
  * retrying.  If you don't care for the hint, the macro below is a good
  * way to check for the long_busy return codes
  */
 #define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
 			     && (x <= H_LONG_BUSY_END_RANGE))

 /* Flags */
 #define H_LARGE_PAGE		(1UL<<(63-16))
 #define H_EXACT			(1UL<<(63-24))	/* Use exact PTE or return H_PTEG_FULL */
 #define H_R_XLATE		(1UL<<(63-25))	/* include a valid logical page num in the pte if the valid bit is set */
 #define H_READ_4		(1UL<<(63-26))	/* Return 4 PTEs */
 #define H_AVPN			(1UL<<(63-32))	/* An avpn is provided as a sanity test */
 #define H_ANDCOND		(1UL<<(63-33))
 #define H_ICACHE_INVALIDATE	(1UL<<(63-40))	/* icbi, etc.  (ignored for IO pages) */
 #define H_ICACHE_SYNCHRONIZE	(1UL<<(63-41))	/* dcbst, icbi, etc (ignored for IO pages */
 #define H_ZERO_PAGE		(1UL<<(63-48))	/* zero the page before mapping (ignored for IO pages) */
 #define H_COPY_PAGE		(1UL<<(63-49))
 #define H_N			(1UL<<(63-61))
 #define H_PP1			(1UL<<(63-62))
 #define H_PP2			(1UL<<(63-63))

 /* VASI States */
 #define H_VASI_INVALID          0
 #define H_VASI_ENABLED          1
 #define H_VASI_ABORTED          2
 #define H_VASI_SUSPENDING       3
 #define H_VASI_SUSPENDED        4
 #define H_VASI_RESUMED          5
 #define H_VASI_COMPLETED        6

 /* DABRX flags */
 #define H_DABRX_HYPERVISOR	(1UL<<(63-61))
 #define H_DABRX_KERNEL		(1UL<<(63-62))
 #define H_DABRX_USER		(1UL<<(63-63))

 /* Each control block has to be on a 4K bondary */
 #define H_CB_ALIGNMENT          4096

 /* pSeries hypervisor opcodes */
 #define H_REMOVE		0x04
 #define H_ENTER			0x08
 #define H_READ			0x0c
 #define H_CLEAR_MOD		0x10
 #define H_CLEAR_REF		0x14
 #define H_PROTECT		0x18
 #define H_GET_TCE		0x1c
 #define H_PUT_TCE		0x20
 #define H_SET_SPRG0		0x24
 #define H_SET_DABR		0x28
 #define H_PAGE_INIT		0x2c
 #define H_SET_ASR		0x30
 #define H_ASR_ON		0x34
 #define H_ASR_OFF		0x38
 #define H_LOGICAL_CI_LOAD	0x3c
 #define H_LOGICAL_CI_STORE	0x40
 #define H_LOGICAL_CACHE_LOAD	0x44
 #define H_LOGICAL_CACHE_STORE	0x48
 #define H_LOGICAL_ICBI		0x4c
 #define H_LOGICAL_DCBF		0x50
 #define H_GET_TERM_CHAR		0x54
 #define H_PUT_TERM_CHAR		0x58
 #define H_REAL_TO_LOGICAL	0x5c
 #define H_HYPERVISOR_DATA	0x60
 #define H_EOI			0x64
 #define H_CPPR			0x68
 #define H_IPI			0x6c
 #define H_IPOLL			0x70
 #define H_XIRR			0x74
 #define H_PERFMON		0x7c
 #define H_MIGRATE_DMA		0x78
 #define H_REGISTER_VPA		0xDC
 #define H_CEDE			0xE0
 #define H_CONFER		0xE4
 #define H_PROD			0xE8
 #define H_GET_PPP		0xEC
 #define H_SET_PPP		0xF0
 #define H_PURR			0xF4
 #define H_PIC			0xF8
 #define H_REG_CRQ		0xFC
 #define H_FREE_CRQ		0x100
 #define H_VIO_SIGNAL		0x104
 #define H_SEND_CRQ		0x108
 #define H_COPY_RDMA		0x110
 #define H_REGISTER_LOGICAL_LAN	0x114
 #define H_FREE_LOGICAL_LAN	0x118
 #define H_ADD_LOGICAL_LAN_BUFFER 0x11C
 #define H_SEND_LOGICAL_LAN	0x120
 #define H_BULK_REMOVE		0x124
 #define H_MULTICAST_CTRL	0x130
 #define H_SET_XDABR		0x134
 #define H_STUFF_TCE		0x138
 #define H_PUT_TCE_INDIRECT	0x13C
 #define H_CHANGE_LOGICAL_LAN_MAC 0x14C
 #define H_VTERM_PARTNER_INFO	0x150
 #define H_REGISTER_VTERM	0x154
 #define H_FREE_VTERM		0x158
 #define H_RESET_EVENTS          0x15C
 #define H_ALLOC_RESOURCE        0x160
 #define H_FREE_RESOURCE         0x164
 #define H_MODIFY_QP             0x168
 #define H_QUERY_QP              0x16C
 #define H_REREGISTER_PMR        0x170
 #define H_REGISTER_SMR          0x174
 #define H_QUERY_MR              0x178
 #define H_QUERY_MW              0x17C
 #define H_QUERY_HCA             0x180
 #define H_QUERY_PORT            0x184
 #define H_MODIFY_PORT           0x188
 #define H_DEFINE_AQP1           0x18C
 #define H_GET_TRACE_BUFFER      0x190
 #define H_DEFINE_AQP0           0x194
 #define H_RESIZE_MR             0x198
 #define H_ATTACH_MCQP           0x19C
 #define H_DETACH_MCQP           0x1A0
 #define H_CREATE_RPT            0x1A4
 #define H_REMOVE_RPT            0x1A8
 #define H_REGISTER_RPAGES       0x1AC
 #define H_DISABLE_AND_GETC      0x1B0
 #define H_ERROR_DATA            0x1B4
 #define H_GET_HCA_INFO          0x1B8
 #define H_GET_PERF_COUNT        0x1BC
 #define H_MANAGE_TRACE          0x1C0
 #define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
 #define H_QUERY_INT_STATE       0x1E4
 #define H_POLL_PENDING		0x1D8
 #define H_ILLAN_ATTRIBUTES	0x244
 #define H_JOIN			0x298
 #define H_VASI_STATE            0x2A4
 #define H_ENABLE_CRQ		0x2B0
 #define MAX_HCALL_OPCODE	H_ENABLE_CRQ

 #ifndef __ASSEMBLY__

 /**
  * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
  * @opcode: The hypervisor call to make.
  *
  * This call supports up to 7 arguments and only returns the status of
  * the hcall. Use this version where possible, its slightly faster than
  * the other plpar_hcalls.
  */
 long plpar_hcall_norets(unsigned long opcode, ...);

 /**
  * plpar_hcall: - Make a pseries hypervisor call
  * @opcode: The hypervisor call to make.
  * @retbuf: Buffer to store up to 4 return arguments in.
  *
  * This call supports up to 6 arguments and 4 return arguments. Use
  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
  *
  * Used for all but the craziest of phyp interfaces (see plpar_hcall9)
  */
 #define PLPAR_HCALL_BUFSIZE 4
 long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);

 /**
  * plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
  * @opcode: The hypervisor call to make.
  * @retbuf: Buffer to store up to 4 return arguments in.
  *
  * This call supports up to 6 arguments and 4 return arguments. Use
  * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
  *
  * Used when phyp interface needs to be called in real mode. Similar to
  * plpar_hcall, but plpar_hcall_raw works in real mode and does not
  * calculate hypervisor call statistics.
  */
 long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);

 /**
  * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
  * @opcode: The hypervisor call to make.
  * @retbuf: Buffer to store up to 9 return arguments in.
  *
  * This call supports up to 9 arguments and 9 return arguments. Use
  * PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
  */
 #define PLPAR_HCALL9_BUFSIZE 9
 long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);

 /* For hcall instrumentation.  One structure per-hcall, per-CPU */
 struct hcall_stats {
 	unsigned long	num_calls;	/* number of calls (on this CPU) */
 	unsigned long	tb_total;	/* total wall time (mftb) of calls. */
 	unsigned long	purr_total;	/* total cpu time (PURR) of calls. */
 };
 #define HCALL_STAT_ARRAY_SIZE	((MAX_HCALL_OPCODE >> 2) + 1)

 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */
	#ifndef _ASM_POWERPC_HVCALL_H
	#define _ASM_POWERPC_HVCALL_H
	#ifdef __KERNEL__

	#define HVSC .long 0x44000022

	#define H_SUCCESS 0
	#define H_BUSY 1 /* Hardware busy -- retry later */
	#define H_CLOSED 2 /* Resource closed */
	#define H_NOT_AVAILABLE 3
	#define H_CONSTRAINED 4 /* Resource request constrained to max allowed */
	#define H_PARTIAL 5
	#define H_IN_PROGRESS 14 /* Kind of like busy */
	#define H_PAGE_REGISTERED 15
	#define H_PARTIAL_STORE 16
	#define H_PENDING 17 /* returned from H_POLL_PENDING */
	#define H_CONTINUE 18 /* Returned from H_Join on success */
	#define H_LONG_BUSY_START_RANGE 9900 /* Start of long busy range */
	#define H_LONG_BUSY_ORDER_1_MSEC 9900 /* Long busy, hint that 1msec \
	is a good time to retry */
	#define H_LONG_BUSY_ORDER_10_MSEC 9901 /* Long busy, hint that 10msec \
	is a good time to retry */
	#define H_LONG_BUSY_ORDER_100_MSEC 9902 /* Long busy, hint that 100msec \
	is a good time to retry */
	#define H_LONG_BUSY_ORDER_1_SEC 9903 /* Long busy, hint that 1sec \
	is a good time to retry */
	#define H_LONG_BUSY_ORDER_10_SEC 9904 /* Long busy, hint that 10sec \
	is a good time to retry */
	#define H_LONG_BUSY_ORDER_100_SEC 9905 /* Long busy, hint that 100sec \
	is a good time to retry */
	#define H_LONG_BUSY_END_RANGE 9905 /* End of long busy range */
	#define H_HARDWARE -1 /* Hardware error */
	#define H_FUNCTION -2 /* Function not supported */
	#define H_PRIVILEGE -3 /* Caller not privileged */
	#define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
	#define H_BAD_MODE -5 /* Illegal msr value */
	#define H_PTEG_FULL -6 /* PTEG is full */
	#define H_NOT_FOUND -7 /* PTE was not found" */
	#define H_RESERVED_DABR -8 /* DABR address is reserved by the hypervisor on this processor" */
	#define H_NO_MEM -9
	#define H_AUTHORITY -10
	#define H_PERMISSION -11
	#define H_DROPPED -12
	#define H_SOURCE_PARM -13
	#define H_DEST_PARM -14
	#define H_REMOTE_PARM -15
	#define H_RESOURCE -16
	#define H_ADAPTER_PARM -17
	#define H_RH_PARM -18
	#define H_RCQ_PARM -19
	#define H_SCQ_PARM -20
	#define H_EQ_PARM -21
	#define H_RT_PARM -22
	#define H_ST_PARM -23
	#define H_SIGT_PARM -24
	#define H_TOKEN_PARM -25
	#define H_MLENGTH_PARM -27
	#define H_MEM_PARM -28
	#define H_MEM_ACCESS_PARM -29
	#define H_ATTR_PARM -30
	#define H_PORT_PARM -31
	#define H_MCG_PARM -32
	#define H_VL_PARM -33
	#define H_TSIZE_PARM -34
	#define H_TRACE_PARM -35

	#define H_MASK_PARM -37
	#define H_MCG_FULL -38
	#define H_ALIAS_EXIST -39
	#define H_P_COUNTER -40
	#define H_TABLE_FULL -41
	#define H_ALT_TABLE -42
	#define H_MR_CONDITION -43
	#define H_NOT_ENOUGH_RESOURCES -44
	#define H_R_STATE -45
	#define H_RESCINDEND -46


	/* Long Busy is a condition that can be returned by the firmware
	* when a call cannot be completed now, but the identical call
	* should be retried later. This prevents calls blocking in the
	* firmware for long periods of time. Annoyingly the firmware can return
	* a range of return codes, hinting at how long we should wait before
	* retrying. If you don't care for the hint, the macro below is a good
	* way to check for the long_busy return codes
	*/
	#define H_IS_LONG_BUSY(x) ((x >= H_LONG_BUSY_START_RANGE) \
	&& (x <= H_LONG_BUSY_END_RANGE))

	/* Flags */
	#define H_LARGE_PAGE (1UL<<(63-16))
	#define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */
	#define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */
	#define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */
	#define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */
	#define H_ANDCOND (1UL<<(63-33))
	#define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */
	#define H_ICACHE_SYNCHRONIZE (1UL<<(63-41)) /* dcbst, icbi, etc (ignored for IO pages */
	#define H_ZERO_PAGE (1UL<<(63-48)) /* zero the page before mapping (ignored for IO pages) */
	#define H_COPY_PAGE (1UL<<(63-49))
	#define H_N (1UL<<(63-61))
	#define H_PP1 (1UL<<(63-62))
	#define H_PP2 (1UL<<(63-63))

	/* VASI States */
	#define H_VASI_INVALID 0
	#define H_VASI_ENABLED 1
	#define H_VASI_ABORTED 2
	#define H_VASI_SUSPENDING 3
	#define H_VASI_SUSPENDED 4
	#define H_VASI_RESUMED 5
	#define H_VASI_COMPLETED 6

	/* DABRX flags */
	#define H_DABRX_HYPERVISOR (1UL<<(63-61))
	#define H_DABRX_KERNEL (1UL<<(63-62))
	#define H_DABRX_USER (1UL<<(63-63))

	/* Each control block has to be on a 4K bondary */
	#define H_CB_ALIGNMENT 4096

	/* pSeries hypervisor opcodes */
	#define H_REMOVE 0x04
	#define H_ENTER 0x08
	#define H_READ 0x0c
	#define H_CLEAR_MOD 0x10
	#define H_CLEAR_REF 0x14
	#define H_PROTECT 0x18
	#define H_GET_TCE 0x1c
	#define H_PUT_TCE 0x20
	#define H_SET_SPRG0 0x24
	#define H_SET_DABR 0x28
	#define H_PAGE_INIT 0x2c
	#define H_SET_ASR 0x30
	#define H_ASR_ON 0x34
	#define H_ASR_OFF 0x38
	#define H_LOGICAL_CI_LOAD 0x3c
	#define H_LOGICAL_CI_STORE 0x40
	#define H_LOGICAL_CACHE_LOAD 0x44
	#define H_LOGICAL_CACHE_STORE 0x48
	#define H_LOGICAL_ICBI 0x4c
	#define H_LOGICAL_DCBF 0x50
	#define H_GET_TERM_CHAR 0x54
	#define H_PUT_TERM_CHAR 0x58
	#define H_REAL_TO_LOGICAL 0x5c
	#define H_HYPERVISOR_DATA 0x60
	#define H_EOI 0x64
	#define H_CPPR 0x68
	#define H_IPI 0x6c
	#define H_IPOLL 0x70
	#define H_XIRR 0x74
	#define H_PERFMON 0x7c
	#define H_MIGRATE_DMA 0x78
	#define H_REGISTER_VPA 0xDC
	#define H_CEDE 0xE0
	#define H_CONFER 0xE4
	#define H_PROD 0xE8
	#define H_GET_PPP 0xEC
	#define H_SET_PPP 0xF0
	#define H_PURR 0xF4
	#define H_PIC 0xF8
	#define H_REG_CRQ 0xFC
	#define H_FREE_CRQ 0x100
	#define H_VIO_SIGNAL 0x104
	#define H_SEND_CRQ 0x108
	#define H_COPY_RDMA 0x110
	#define H_REGISTER_LOGICAL_LAN 0x114
	#define H_FREE_LOGICAL_LAN 0x118
	#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
	#define H_SEND_LOGICAL_LAN 0x120
	#define H_BULK_REMOVE 0x124
	#define H_MULTICAST_CTRL 0x130
	#define H_SET_XDABR 0x134
	#define H_STUFF_TCE 0x138
	#define H_PUT_TCE_INDIRECT 0x13C
	#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
	#define H_VTERM_PARTNER_INFO 0x150
	#define H_REGISTER_VTERM 0x154
	#define H_FREE_VTERM 0x158
	#define H_RESET_EVENTS 0x15C
	#define H_ALLOC_RESOURCE 0x160
	#define H_FREE_RESOURCE 0x164
	#define H_MODIFY_QP 0x168
	#define H_QUERY_QP 0x16C
	#define H_REREGISTER_PMR 0x170
	#define H_REGISTER_SMR 0x174
	#define H_QUERY_MR 0x178
	#define H_QUERY_MW 0x17C
	#define H_QUERY_HCA 0x180
	#define H_QUERY_PORT 0x184
	#define H_MODIFY_PORT 0x188
	#define H_DEFINE_AQP1 0x18C
	#define H_GET_TRACE_BUFFER 0x190
	#define H_DEFINE_AQP0 0x194
	#define H_RESIZE_MR 0x198
	#define H_ATTACH_MCQP 0x19C
	#define H_DETACH_MCQP 0x1A0
	#define H_CREATE_RPT 0x1A4
	#define H_REMOVE_RPT 0x1A8
	#define H_REGISTER_RPAGES 0x1AC
	#define H_DISABLE_AND_GETC 0x1B0
	#define H_ERROR_DATA 0x1B4
	#define H_GET_HCA_INFO 0x1B8
	#define H_GET_PERF_COUNT 0x1BC
	#define H_MANAGE_TRACE 0x1C0
	#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
	#define H_QUERY_INT_STATE 0x1E4
	#define H_POLL_PENDING 0x1D8
	#define H_ILLAN_ATTRIBUTES 0x244
	#define H_JOIN 0x298
	#define H_VASI_STATE 0x2A4
	#define H_ENABLE_CRQ 0x2B0
	#define MAX_HCALL_OPCODE H_ENABLE_CRQ

	#ifndef __ASSEMBLY__

	/**
	* plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
	* @opcode: The hypervisor call to make.
	*
	* This call supports up to 7 arguments and only returns the status of
	* the hcall. Use this version where possible, its slightly faster than
	* the other plpar_hcalls.
	*/
	long plpar_hcall_norets(unsigned long opcode, ...);

	/**
	* plpar_hcall: - Make a pseries hypervisor call
	* @opcode: The hypervisor call to make.
	* @retbuf: Buffer to store up to 4 return arguments in.
	*
	* This call supports up to 6 arguments and 4 return arguments. Use
	* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
	*
	* Used for all but the craziest of phyp interfaces (see plpar_hcall9)
	*/
	#define PLPAR_HCALL_BUFSIZE 4
	long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);

	/**
	* plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
	* @opcode: The hypervisor call to make.
	* @retbuf: Buffer to store up to 4 return arguments in.
	*
	* This call supports up to 6 arguments and 4 return arguments. Use
	* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
	*
	* Used when phyp interface needs to be called in real mode. Similar to
	* plpar_hcall, but plpar_hcall_raw works in real mode and does not
	* calculate hypervisor call statistics.
	*/
	long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);

	/**
	* plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
	* @opcode: The hypervisor call to make.
	* @retbuf: Buffer to store up to 9 return arguments in.
	*
	* This call supports up to 9 arguments and 9 return arguments. Use
	* PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
	*/
	#define PLPAR_HCALL9_BUFSIZE 9
	long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);

	/* For hcall instrumentation. One structure per-hcall, per-CPU */
	struct hcall_stats {
	unsigned long num_calls; /* number of calls (on this CPU) */
	unsigned long tb_total; /* total wall time (mftb) of calls. */
	unsigned long purr_total; /* total cpu time (PURR) of calls. */
	};
	#define HCALL_STAT_ARRAY_SIZE ((MAX_HCALL_OPCODE >> 2) + 1)

	#endif /* __ASSEMBLY__ */
	#endif /* __KERNEL__ */
	#endif /* _ASM_POWERPC_HVCALL_H */