ddi_intr_impl.h revision 20036fe5e9e9df6dd3168c764d777e19b1f0acdd
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_DDI_INTR_IMPL_H
#define _SYS_DDI_INTR_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Sun DDI interrupt implementation specific definitions
*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
/*
* Typedef for interrupt ops
*/
typedef enum {
DDI_INTROP_SUPPORTED_TYPES = 1, /* 1 get supported interrupts types */
DDI_INTROP_NINTRS, /* 2 get num of interrupts supported */
DDI_INTROP_ALLOC, /* 3 allocate interrupt handle */
DDI_INTROP_GETPRI, /* 4 get priority */
DDI_INTROP_SETPRI, /* 5 set priority */
DDI_INTROP_ADDISR, /* 6 add interrupt handler */
DDI_INTROP_DUPVEC, /* 7 duplicate interrupt handler */
DDI_INTROP_ENABLE, /* 8 enable interrupt */
DDI_INTROP_BLOCKENABLE, /* 9 block enable interrupts */
DDI_INTROP_BLOCKDISABLE, /* 10 block disable interrupts */
DDI_INTROP_DISABLE, /* 11 disable interrupt */
DDI_INTROP_REMISR, /* 12 remove interrupt handler */
DDI_INTROP_FREE, /* 13 free interrupt handle */
DDI_INTROP_GETCAP, /* 14 get capacity */
DDI_INTROP_SETCAP, /* 15 set capacity */
DDI_INTROP_SETMASK, /* 16 set mask */
DDI_INTROP_CLRMASK, /* 17 clear mask */
DDI_INTROP_GETPENDING, /* 18 get pending interrupt */
DDI_INTROP_NAVAIL /* 19 get num of available interrupts */
} ddi_intr_op_t;
/* Version number used in the handles */
#define DDI_INTR_VERSION_1 1
#define DDI_INTR_VERSION DDI_INTR_VERSION_1
/*
* One such data structure is allocated per ddi_intr_handle_t
* This is the incore copy of the regular interrupt info.
*/
typedef struct ddi_intr_handle_impl {
dev_info_t *ih_dip; /* dip associated with handle */
uint16_t ih_type; /* interrupt type being used */
ushort_t ih_inum; /* interrupt number */
uint32_t ih_vector; /* vector number */
uint16_t ih_ver; /* Version */
uint_t ih_state; /* interrupt handle state */
uint_t ih_cap; /* interrupt capabilities */
uint_t ih_pri; /* priority - bus dependent */
krwlock_t ih_rwlock; /* read/write lock per handle */
uint_t (*ih_cb_func)(caddr_t, caddr_t);
void *ih_cb_arg1;
void *ih_cb_arg2;
/*
* The following 3 members are used to support MSI-X specific features
*/
uint_t ih_flags; /* Misc flags */
uint_t ih_dup_cnt; /* # of dupped msi-x vectors */
struct ddi_intr_handle_impl *ih_main;
/* pntr to the main vector */
/*
* The next set of members are for 'scratch' purpose only.
* The DDI interrupt framework uses them internally and their
* interpretation is left to the framework. For now,
* scratch1 - used to send NINTRs information
* to various nexus drivers.
* scratch2 - used to send 'behavior' flag
* information to the nexus drivers
* from ddi_intr_alloc(). It is also
* used to send 'h_array' to the nexus drivers
* for ddi_intr_block_enable/disable() on x86.
* private - On X86 it usually carries a pointer to
* ihdl_plat_t. Not used on SPARC platforms.
*/
void *ih_private; /* Platform specific data */
uint_t ih_scratch1; /* Scratch1: #interrupts */
void *ih_scratch2; /* Scratch2: flag/h_array */
} ddi_intr_handle_impl_t;
/* values for ih_state (strictly for interrupt handle) */
#define DDI_IHDL_STATE_ALLOC 0x01 /* Allocated. ddi_intr_alloc() called */
#define DDI_IHDL_STATE_ADDED 0x02 /* Added interrupt handler */
/* ddi_intr_add_handler() called */
#define DDI_IHDL_STATE_ENABLE 0x04 /* Enabled. ddi_intr_enable() called */
#define DDI_INTR_IS_MSI_OR_MSIX(type) \
((type) == DDI_INTR_TYPE_MSI || (type) == DDI_INTR_TYPE_MSIX)
#define DDI_INTR_SUP_TYPES DDI_INTR_TYPE_FIXED|DDI_INTR_TYPE_MSI|\
DDI_INTR_TYPE_MSIX
/* values for ih_flags */
#define DDI_INTR_MSIX_DUP 0x01 /* MSI-X vector which has been dupped */
struct av_softinfo;
/*
* One such data structure is allocated per ddi_soft_intr_handle
* This is the incore copy of the softint info.
*/
typedef struct ddi_softint_hdl_impl {
dev_info_t *ih_dip; /* dip associated with handle */
uint_t ih_pri; /* priority - bus dependent */
krwlock_t ih_rwlock; /* read/write lock per handle */
struct av_softinfo *ih_pending; /* whether softint is pending */
uint_t (*ih_cb_func)(caddr_t, caddr_t);
/* cb function for soft ints */
void *ih_cb_arg1; /* arg1 of callback function */
void *ih_cb_arg2; /* arg2 passed to "trigger" */
/*
* The next member is for 'scratch' purpose only.
* The DDI interrupt framework uses it internally and its
* interpretation is left to the framework.
* private - used by the DDI framework to pass back
* and forth 'softid' information on SPARC
* side only. Not used on X86 platform.
*/
void *ih_private; /* Platform specific data */
} ddi_softint_hdl_impl_t;
/* Softint internal implementation defines */
#define DDI_SOFT_INTR_PRI_M 4
#define DDI_SOFT_INTR_PRI_H 6
/*
* One such data structure is allocated for MSI-X enabled
* device. If no MSI-X is enabled then it is NULL
*/
typedef struct ddi_intr_msix {
/* MSI-X Table related information */
ddi_acc_handle_t msix_tbl_hdl; /* MSI-X table handle */
uint32_t *msix_tbl_addr; /* MSI-X table addr */
uint32_t msix_tbl_offset; /* MSI-X table offset */
/* MSI-X PBA Table related information */
ddi_acc_handle_t msix_pba_hdl; /* MSI-X PBA handle */
uint32_t *msix_pba_addr; /* MSI-X PBA addr */
uint32_t msix_pba_offset; /* MSI-X PBA offset */
ddi_device_acc_attr_t msix_dev_attr; /* MSI-X device attr */
} ddi_intr_msix_t;
/*
* One such data structure is allocated for each dip.
* It has interrupt related information that can be
* stored/retrieved for convenience.
*/
typedef struct devinfo_intr {
/* These three fields show what the device is capable of */
uint_t devi_intr_sup_types; /* Intrs supported by device */
ddi_intr_msix_t *devi_msix_p; /* MSI-X info, if supported */
/* Next three fields show current status for the device */
uint_t devi_intr_curr_type; /* Interrupt type being used */
uint_t devi_intr_sup_nintrs; /* #intr supported */
uint_t devi_intr_curr_nintrs; /* #intr currently being used */
ddi_intr_handle_t **devi_intr_handle_p; /* Hdl for legacy intr APIs */
} devinfo_intr_t;
#define NEXUS_HAS_INTR_OP(dip) \
((DEVI(dip)->devi_ops->devo_bus_ops) && \
(DEVI(dip)->devi_ops->devo_bus_ops->busops_rev >= BUSO_REV_9) && \
(DEVI(dip)->devi_ops->devo_bus_ops->bus_intr_op))
int i_ddi_intr_ops(dev_info_t *dip, dev_info_t *rdip, ddi_intr_op_t op,
ddi_intr_handle_impl_t *hdlp, void *result);
int i_ddi_add_softint(ddi_softint_hdl_impl_t *);
void i_ddi_remove_softint(ddi_softint_hdl_impl_t *);
int i_ddi_trigger_softint(ddi_softint_hdl_impl_t *, void *);
int i_ddi_set_softint_pri(ddi_softint_hdl_impl_t *, uint_t);
void i_ddi_intr_devi_init(dev_info_t *dip);
void i_ddi_intr_devi_fini(dev_info_t *dip);
uint_t i_ddi_intr_get_supported_types(dev_info_t *dip);
void i_ddi_intr_set_supported_types(dev_info_t *dip, int sup_type);
uint_t i_ddi_intr_get_current_type(dev_info_t *dip);
void i_ddi_intr_set_current_type(dev_info_t *dip, int intr_type);
uint_t i_ddi_intr_get_supported_nintrs(dev_info_t *dip, int intr_type);
void i_ddi_intr_set_supported_nintrs(dev_info_t *dip, int nintrs);
uint_t i_ddi_intr_get_current_nintrs(dev_info_t *dip);
void i_ddi_intr_set_current_nintrs(dev_info_t *dip, int nintrs);
ddi_intr_handle_t *i_ddi_get_intr_handle(dev_info_t *dip, int inum);
void i_ddi_set_intr_handle(dev_info_t *dip, int inum,
ddi_intr_handle_t *hdlp);
ddi_intr_msix_t *i_ddi_get_msix(dev_info_t *dip);
void i_ddi_set_msix(dev_info_t *dip, ddi_intr_msix_t *msix_p);
int32_t i_ddi_get_intr_weight(dev_info_t *);
int32_t i_ddi_set_intr_weight(dev_info_t *, int32_t);
void i_ddi_alloc_intr_phdl(ddi_intr_handle_impl_t *);
void i_ddi_free_intr_phdl(ddi_intr_handle_impl_t *);
#define DDI_INTR_ASSIGN_HDLR_N_ARGS(hdlp, func, arg1, arg2) \
hdlp->ih_cb_func = func; \
hdlp->ih_cb_arg1 = arg1; \
hdlp->ih_cb_arg2 = arg2;
#ifdef DEBUG
#define I_DDI_VERIFY_MSIX_HANDLE(hdlp) \
if ((hdlp->ih_type == DDI_INTR_TYPE_MSIX) && \
(hdlp->ih_flags & DDI_INTR_MSIX_DUP)) { \
ASSERT(hdlp->ih_dip == hdlp->ih_main->ih_dip); \
ASSERT(hdlp->ih_type == hdlp->ih_main->ih_type); \
ASSERT(hdlp->ih_vector == hdlp->ih_main->ih_vector); \
ASSERT(hdlp->ih_ver == hdlp->ih_main->ih_ver); \
ASSERT(hdlp->ih_cap == hdlp->ih_main->ih_cap); \
ASSERT(hdlp->ih_pri == hdlp->ih_main->ih_pri); \
}
#else
#define I_DDI_VERIFY_MSIX_HANDLE(hdlp)
#endif
#else /* _KERNEL */
typedef struct devinfo_intr devinfo_intr_t;
#endif /* _KERNEL */
/*
* Used only by old DDI interrupt interfaces.
*/
/*
* This structure represents one interrupt possible from the given
* device. It is used in an array for devices with multiple interrupts.
*/
struct intrspec {
uint_t intrspec_pri; /* interrupt priority */
uint_t intrspec_vec; /* vector # (0 if none) */
uint_t (*intrspec_func)(); /* function to call for interrupt, */
/* If (uint_t (*)()) 0, none. */
/* If (uint_t (*)()) 1, then */
};
#ifdef _KERNEL
/*
* NOTE:
* The following 4 busops entry points are obsoleted with version
* 9 or greater. Use i_ddi_intr_op interface in place of these
* obsolete interfaces.
*
* Remove these busops entry points and all related data structures
* in future minor/major solaris release.
*/
typedef enum {DDI_INTR_CTLOPS_NONE} ddi_intr_ctlop_t;
/* The following are the obsolete interfaces */
ddi_intrspec_t i_ddi_get_intrspec(dev_info_t *dip, dev_info_t *rdip,
uint_t inumber);
int i_ddi_add_intrspec(dev_info_t *dip, dev_info_t *rdip,
ddi_intrspec_t intrspec, ddi_iblock_cookie_t *iblock_cookiep,
ddi_idevice_cookie_t *idevice_cookiep,
uint_t (*int_handler)(caddr_t int_handler_arg),
caddr_t int_handler_arg, int kind);
void i_ddi_remove_intrspec(dev_info_t *dip, dev_info_t *rdip,
ddi_intrspec_t intrspec, ddi_iblock_cookie_t iblock_cookie);
int i_ddi_intr_ctlops(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_ctlop_t op, void *arg, void *val);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DDI_INTR_IMPL_H */