mirror of
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534ccd7bbf
Summary: The idea behind this is '~0ul' is well-defined, and casting to uintmax_t, on a 32-bit platform, will leave the upper 32 bits as 0. The maximum range of a resource is 0xFFF.... (all bits of the full type set). By dropping the 'ul' suffix, C type promotion rules apply, and the sign extension of ~0 on 32 bit platforms gets it to a type-independent 'unsigned max'. Reviewed By: cem Sponsored by: Alex Perez/Inertial Computing Differential Revision: https://reviews.freebsd.org/D5255
577 lines
18 KiB
C
577 lines
18 KiB
C
/*-
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* Copyright (c) 2015 Landon Fuller <landon@landonf.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef _BHND_BHND_H_
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#define _BHND_BHND_H_
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#include <sys/types.h>
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#include <sys/bus.h>
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#include <machine/bus.h>
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#include "bhnd_ids.h"
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#include "bhnd_types.h"
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#include "bhnd_bus_if.h"
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extern devclass_t bhnd_devclass;
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extern devclass_t bhnd_hostb_devclass;
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extern devclass_t bhnd_nvram_devclass;
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/**
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* bhnd child instance variables
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*/
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enum bhnd_device_vars {
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BHND_IVAR_VENDOR, /**< Designer's JEP-106 manufacturer ID. */
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BHND_IVAR_DEVICE, /**< Part number */
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BHND_IVAR_HWREV, /**< Core revision */
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BHND_IVAR_DEVICE_CLASS, /**< Core class (@sa bhnd_devclass_t) */
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BHND_IVAR_VENDOR_NAME, /**< Core vendor name */
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BHND_IVAR_DEVICE_NAME, /**< Core name */
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BHND_IVAR_CORE_INDEX, /**< Bus-assigned core number */
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BHND_IVAR_CORE_UNIT, /**< Bus-assigned core unit number,
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assigned sequentially (starting at 0) for
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each vendor/device pair. */
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};
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/**
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* bhnd device probe priority bands.
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*/
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enum {
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BHND_PROBE_ROOT = 0, /**< Nexus or host bridge */
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BHND_PROBE_BUS = 1000, /**< Busses and bridges */
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BHND_PROBE_CPU = 2000, /**< CPU devices */
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BHND_PROBE_INTERRUPT = 3000, /**< Interrupt controllers. */
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BHND_PROBE_TIMER = 4000, /**< Timers and clocks. */
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BHND_PROBE_RESOURCE = 5000, /**< Resource discovery (including NVRAM/SPROM) */
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BHND_PROBE_DEFAULT = 6000, /**< Default device priority */
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};
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/**
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* Constants defining fine grained ordering within a BHND_PROBE_* priority band.
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*
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* Example:
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* @code
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* BHND_PROBE_BUS + BHND_PROBE_ORDER_FIRST
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* @endcode
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*/
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enum {
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BHND_PROBE_ORDER_FIRST = 0,
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BHND_PROBE_ORDER_EARLY = 25,
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BHND_PROBE_ORDER_MIDDLE = 50,
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BHND_PROBE_ORDER_LATE = 75,
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BHND_PROBE_ORDER_LAST = 100
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};
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/*
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* Simplified accessors for bhnd device ivars
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*/
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#define BHND_ACCESSOR(var, ivar, type) \
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__BUS_ACCESSOR(bhnd, var, BHND, ivar, type)
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BHND_ACCESSOR(vendor, VENDOR, uint16_t);
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BHND_ACCESSOR(device, DEVICE, uint16_t);
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BHND_ACCESSOR(hwrev, HWREV, uint8_t);
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BHND_ACCESSOR(class, DEVICE_CLASS, bhnd_devclass_t);
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BHND_ACCESSOR(vendor_name, VENDOR_NAME, const char *);
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BHND_ACCESSOR(device_name, DEVICE_NAME, const char *);
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BHND_ACCESSOR(core_index, CORE_INDEX, u_int);
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BHND_ACCESSOR(core_unit, CORE_UNIT, int);
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#undef BHND_ACCESSOR
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/**
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* Chip Identification
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*
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* This is read from the ChipCommon ID register; on earlier bhnd(4) devices
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* where ChipCommon is unavailable, known values must be supplied.
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*/
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struct bhnd_chipid {
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uint16_t chip_id; /**< chip id (BHND_CHIPID_*) */
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uint8_t chip_rev; /**< chip revision */
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uint8_t chip_pkg; /**< chip package (BHND_PKGID_*) */
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uint8_t chip_type; /**< chip type (BHND_CHIPTYPE_*) */
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bhnd_addr_t enum_addr; /**< chip_type-specific enumeration
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* address; either the siba(4) base
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* core register block, or the bcma(4)
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* EROM core address. */
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uint8_t ncores; /**< number of cores, if known. 0 if
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* not available. */
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};
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/**
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* A bhnd(4) bus resource.
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*
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* This provides an abstract interface to per-core resources that may require
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* bus-level remapping of address windows prior to access.
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*/
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struct bhnd_resource {
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struct resource *res; /**< the system resource. */
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bool direct; /**< false if the resource requires
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* bus window remapping before it
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* is MMIO accessible. */
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};
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/**
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* A bhnd(4) core descriptor.
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*/
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struct bhnd_core_info {
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uint16_t vendor; /**< vendor */
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uint16_t device; /**< device */
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uint16_t hwrev; /**< hardware revision */
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u_int core_idx; /**< bus-assigned core index */
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int unit; /**< bus-assigned core unit */
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};
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/**
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* A hardware revision match descriptor.
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*/
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struct bhnd_hwrev_match {
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uint16_t start; /**< first revision, or BHND_HWREV_INVALID
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to match on any revision. */
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uint16_t end; /**< last revision, or BHND_HWREV_INVALID
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to match on any revision. */
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};
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/**
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* Wildcard hardware revision match descriptor.
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*/
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#define BHND_HWREV_MATCH_ANY { BHND_HWREV_INVALID, BHND_HWREV_INVALID }
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/** A core match descriptor. */
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struct bhnd_core_match {
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uint16_t vendor; /**< required JEP106 device vendor or BHND_MFGID_INVALID. */
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uint16_t device; /**< required core ID or BHND_COREID_INVALID */
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struct bhnd_hwrev_match hwrev; /**< matching revisions. */
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bhnd_devclass_t class; /**< required class or BHND_DEVCLASS_INVALID */
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int unit; /**< required core unit, or -1 */
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};
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/**
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* Revision-specific hardware quirk descriptor.
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*
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* Defines a set of quirk flags applicable to a range of hardware
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* revisions.
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*/
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struct bhnd_device_quirk {
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struct bhnd_hwrev_match hwrev; /**< applicable hardware revisions */
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uint32_t quirks; /**< applicable quirk flags */
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};
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/**
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* Define a bhnd_device_quirk over a range of hardware revisions.
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*
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* @param _start The first applicable hardware revision.
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* @param _end The last applicable hardware revision, or BHND_HWREV_INVALID
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* to match on any revision.
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* @param _quirks Quirk flags applicable to this revision range.
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*/
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#define BHND_QUIRK_HWREV_RANGE(_start, _end, _quirks) \
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{ .hwrev = { _start, _end }, .quirks = _quirks }
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/**
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* Define a bhnd_device_quirk for a specific hardware revision.
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*
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* @param _hwrev The hardware revision to match on.
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* @param _quirks Quirk flags applicable to this revision.
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*/
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#define BHND_QUIRK_HWREV_EQ(_hwrev, _quirks) \
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BHND_QUIRK_HWREV_RANGE(_hwrev, _hwrev, _quirks)
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/**
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* Define a bhnd_device_quirk for any hardware revision equal or greater
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* than @p _start.
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*
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* @param _start The first hardware revision to match on.
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* @param _quirks Quirk flags applicable to this revision.
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*/
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#define BHND_QUIRK_HWREV_GTE(_start, _quirks) \
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BHND_QUIRK_HWREV_RANGE(_start, BHND_HWREV_INVALID, _quirks)
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/**
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* Define a bhnd_device_quirk for any hardware revision equal or less
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* than @p _end.
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*
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* @param _end The last hardware revision to match on.
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* @param _quirks Quirk flags applicable to this revision.
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*/
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#define BHND_QUIRK_HWREV_LTE(_end, _quirks) \
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BHND_QUIRK_HWREV_RANGE(0, _end, _quirks)
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/** Mark the end of a bhnd_device_quirk table. */
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#define BHND_QUIRK_HWREV_END { BHND_HWREV_MATCH_ANY, 0 }
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const char *bhnd_vendor_name(uint16_t vendor);
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const char *bhnd_port_type_name(bhnd_port_type port_type);
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const char *bhnd_find_core_name(uint16_t vendor,
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uint16_t device);
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bhnd_devclass_t bhnd_find_core_class(uint16_t vendor,
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uint16_t device);
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const char *bhnd_core_name(const struct bhnd_core_info *ci);
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bhnd_devclass_t bhnd_core_class(const struct bhnd_core_info *ci);
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device_t bhnd_match_child(device_t dev,
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const struct bhnd_core_match *desc);
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device_t bhnd_find_child(device_t dev,
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bhnd_devclass_t class, int unit);
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const struct bhnd_core_info *bhnd_match_core(
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const struct bhnd_core_info *cores,
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u_int num_cores,
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const struct bhnd_core_match *desc);
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const struct bhnd_core_info *bhnd_find_core(
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const struct bhnd_core_info *cores,
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u_int num_cores, bhnd_devclass_t class);
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bool bhnd_core_matches(
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const struct bhnd_core_info *core,
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const struct bhnd_core_match *desc);
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bool bhnd_hwrev_matches(uint16_t hwrev,
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const struct bhnd_hwrev_match *desc);
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bool bhnd_device_matches(device_t dev,
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const struct bhnd_core_match *desc);
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struct bhnd_core_info bhnd_get_core_info(device_t dev);
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int bhnd_alloc_resources(device_t dev,
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struct resource_spec *rs,
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struct bhnd_resource **res);
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void bhnd_release_resources(device_t dev,
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const struct resource_spec *rs,
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struct bhnd_resource **res);
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struct bhnd_chipid bhnd_parse_chipid(uint32_t idreg,
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bhnd_addr_t enum_addr);
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int bhnd_read_chipid(device_t dev,
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struct resource_spec *rs,
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bus_size_t chipc_offset,
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struct bhnd_chipid *result);
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void bhnd_set_generic_core_desc(device_t dev);
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/**
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* Return true if @p dev is serving as a host bridge for its parent bhnd
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* bus.
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*
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* @param dev A bhnd bus child device.
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*/
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static inline bool
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bhnd_is_hostb_device(device_t dev) {
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return (BHND_BUS_IS_HOSTB_DEVICE(device_get_parent(dev), dev));
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}
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/**
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* Return true if the hardware components required by @p dev are known to be
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* unpopulated or otherwise unusable.
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*
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* In some cases, enumerated devices may have pins that are left floating, or
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* the hardware may otherwise be non-functional; this method allows a parent
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* device to explicitly specify if a successfully enumerated @p dev should
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* be disabled.
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*
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* @param dev A bhnd bus child device.
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*/
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static inline bool
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bhnd_is_hw_disabled(device_t dev) {
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return (BHND_BUS_IS_HW_DISABLED(device_get_parent(dev), dev));
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}
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/**
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* Allocate a resource from a device's parent bhnd(4) bus.
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*
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* @param dev The device requesting resource ownership.
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* @param type The type of resource to allocate. This may be any type supported
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* by the standard bus APIs.
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* @param rid The bus-specific handle identifying the resource being allocated.
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* @param start The start address of the resource.
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* @param end The end address of the resource.
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* @param count The size of the resource.
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* @param flags The flags for the resource to be allocated. These may be any
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* values supported by the standard bus APIs.
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*
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* To request the resource's default addresses, pass @p start and
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* @p end values of @c 0 and @c ~0, respectively, and
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* a @p count of @c 1.
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*
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* @retval NULL The resource could not be allocated.
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* @retval resource The allocated resource.
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*/
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static inline struct bhnd_resource *
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bhnd_alloc_resource(device_t dev, int type, int *rid, rman_res_t start,
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rman_res_t end, rman_res_t count, u_int flags)
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{
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return BHND_BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, type, rid,
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start, end, count, flags);
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}
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/**
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* Allocate a resource from a device's parent bhnd(4) bus, using the
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* resource's default start, end, and count values.
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*
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* @param dev The device requesting resource ownership.
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* @param type The type of resource to allocate. This may be any type supported
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* by the standard bus APIs.
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* @param rid The bus-specific handle identifying the resource being allocated.
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* @param flags The flags for the resource to be allocated. These may be any
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* values supported by the standard bus APIs.
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*
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* @retval NULL The resource could not be allocated.
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* @retval resource The allocated resource.
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*/
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static inline struct bhnd_resource *
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bhnd_alloc_resource_any(device_t dev, int type, int *rid, u_int flags)
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{
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return bhnd_alloc_resource(dev, type, rid, 0, ~0, 1, flags);
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}
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/**
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* Activate a previously allocated bhnd resource.
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*
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* @param dev The device holding ownership of the allocated resource.
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* @param type The type of the resource.
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* @param rid The bus-specific handle identifying the resource.
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* @param r A pointer to the resource returned by bhnd_alloc_resource or
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* BHND_BUS_ALLOC_RESOURCE.
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*
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* @retval 0 success
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* @retval non-zero an error occured while activating the resource.
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*/
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static inline int
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bhnd_activate_resource(device_t dev, int type, int rid,
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struct bhnd_resource *r)
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{
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return BHND_BUS_ACTIVATE_RESOURCE(device_get_parent(dev), dev, type,
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rid, r);
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}
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/**
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* Deactivate a previously activated bhnd resource.
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*
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* @param dev The device holding ownership of the activated resource.
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* @param type The type of the resource.
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* @param rid The bus-specific handle identifying the resource.
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* @param r A pointer to the resource returned by bhnd_alloc_resource or
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* BHND_BUS_ALLOC_RESOURCE.
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*
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* @retval 0 success
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* @retval non-zero an error occured while activating the resource.
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*/
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static inline int
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bhnd_deactivate_resource(device_t dev, int type, int rid,
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struct bhnd_resource *r)
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{
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return BHND_BUS_DEACTIVATE_RESOURCE(device_get_parent(dev), dev, type,
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rid, r);
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}
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/**
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* Free a resource allocated by bhnd_alloc_resource().
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*
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* @param dev The device holding ownership of the resource.
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* @param type The type of the resource.
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* @param rid The bus-specific handle identifying the resource.
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* @param r A pointer to the resource returned by bhnd_alloc_resource or
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* BHND_ALLOC_RESOURCE.
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*
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* @retval 0 success
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* @retval non-zero an error occured while activating the resource.
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*/
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static inline int
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bhnd_release_resource(device_t dev, int type, int rid,
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struct bhnd_resource *r)
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{
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return BHND_BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, type,
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rid, r);
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}
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/**
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* Return true if @p region_num is a valid region on @p port_num of
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* @p type attached to @p dev.
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*
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* @param dev A bhnd bus child device.
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* @param type The port type being queried.
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* @param port_num The port number being queried.
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* @param region_num The region number being queried.
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*/
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static inline bool
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bhnd_is_region_valid(device_t dev, bhnd_port_type type, u_int port_num,
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u_int region_num)
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{
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return (BHND_BUS_IS_REGION_VALID(device_get_parent(dev), dev, type,
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port_num, region_num));
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}
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/**
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* Return the number of ports of type @p type attached to @p def.
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*
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* @param dev A bhnd bus child device.
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* @param type The port type being queried.
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*/
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static inline u_int
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bhnd_get_port_count(device_t dev, bhnd_port_type type) {
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return (BHND_BUS_GET_PORT_COUNT(device_get_parent(dev), dev, type));
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}
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/**
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* Return the number of memory regions mapped to @p child @p port of
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* type @p type.
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*
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* @param dev A bhnd bus child device.
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* @param port The port number being queried.
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* @param type The port type being queried.
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*/
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static inline u_int
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bhnd_get_region_count(device_t dev, bhnd_port_type type, u_int port) {
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return (BHND_BUS_GET_REGION_COUNT(device_get_parent(dev), dev, type,
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port));
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}
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/**
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* Return the resource-ID for a memory region on the given device port.
|
|
*
|
|
* @param dev A bhnd bus child device.
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* @param type The port type.
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* @param port The port identifier.
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* @param region The identifier of the memory region on @p port.
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|
*
|
|
* @retval int The RID for the given @p port and @p region on @p device.
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* @retval -1 No such port/region found.
|
|
*/
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|
static inline int
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|
bhnd_get_port_rid(device_t dev, bhnd_port_type type, u_int port, u_int region)
|
|
{
|
|
return BHND_BUS_GET_PORT_RID(device_get_parent(dev), dev, type, port,
|
|
region);
|
|
}
|
|
|
|
/**
|
|
* Decode a port / region pair on @p dev defined by @p rid.
|
|
*
|
|
* @param dev A bhnd bus child device.
|
|
* @param type The resource type.
|
|
* @param rid The resource identifier.
|
|
* @param[out] port_type The decoded port type.
|
|
* @param[out] port The decoded port identifier.
|
|
* @param[out] region The decoded region identifier.
|
|
*
|
|
* @retval 0 success
|
|
* @retval non-zero No matching port/region found.
|
|
*/
|
|
static inline int
|
|
bhnd_decode_port_rid(device_t dev, int type, int rid, bhnd_port_type *port_type,
|
|
u_int *port, u_int *region)
|
|
{
|
|
return BHND_BUS_DECODE_PORT_RID(device_get_parent(dev), dev, type, rid,
|
|
port_type, port, region);
|
|
}
|
|
|
|
/**
|
|
* Get the address and size of @p region on @p port.
|
|
*
|
|
* @param dev A bhnd bus child device.
|
|
* @param port_type The port type.
|
|
* @param port The port identifier.
|
|
* @param region The identifier of the memory region on @p port.
|
|
* @param[out] region_addr The region's base address.
|
|
* @param[out] region_size The region's size.
|
|
*
|
|
* @retval 0 success
|
|
* @retval non-zero No matching port/region found.
|
|
*/
|
|
static inline int
|
|
bhnd_get_region_addr(device_t dev, bhnd_port_type port_type, u_int port,
|
|
u_int region, bhnd_addr_t *region_addr, bhnd_size_t *region_size)
|
|
{
|
|
return BHND_BUS_GET_REGION_ADDR(device_get_parent(dev), dev, port_type,
|
|
port, region, region_addr, region_size);
|
|
}
|
|
|
|
/*
|
|
* bhnd bus-level equivalents of the bus_(read|write|set|barrier|...)
|
|
* macros (compatible with bhnd_resource).
|
|
*
|
|
* Generated with bhnd/tools/bus_macro.sh
|
|
*/
|
|
#define bhnd_bus_barrier(r, o, l, f) \
|
|
((r)->direct) ? \
|
|
bus_barrier((r)->res, (o), (l), (f)) : \
|
|
BHND_BUS_BARRIER(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o), (l), (f))
|
|
#define bhnd_bus_read_1(r, o) \
|
|
((r)->direct) ? \
|
|
bus_read_1((r)->res, (o)) : \
|
|
BHND_BUS_READ_1(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o))
|
|
#define bhnd_bus_write_1(r, o, v) \
|
|
((r)->direct) ? \
|
|
bus_write_1((r)->res, (o), (v)) : \
|
|
BHND_BUS_WRITE_1(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o), (v))
|
|
#define bhnd_bus_read_2(r, o) \
|
|
((r)->direct) ? \
|
|
bus_read_2((r)->res, (o)) : \
|
|
BHND_BUS_READ_2(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o))
|
|
#define bhnd_bus_write_2(r, o, v) \
|
|
((r)->direct) ? \
|
|
bus_write_2((r)->res, (o), (v)) : \
|
|
BHND_BUS_WRITE_2(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o), (v))
|
|
#define bhnd_bus_read_4(r, o) \
|
|
((r)->direct) ? \
|
|
bus_read_4((r)->res, (o)) : \
|
|
BHND_BUS_READ_4(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o))
|
|
#define bhnd_bus_write_4(r, o, v) \
|
|
((r)->direct) ? \
|
|
bus_write_4((r)->res, (o), (v)) : \
|
|
BHND_BUS_WRITE_4(device_get_parent(rman_get_device((r)->res)), \
|
|
rman_get_device((r)->res), (r), (o), (v))
|
|
|
|
#endif /* _BHND_BHND_H_ */
|