freebsd-dev/sys/powerpc/powermac/uninorthvar.h
Landon J. Fuller a1df0d9592 Fix minor locking issues in the Power Mac Uninorth PCI bridge driver.
- Call resource_int_value() once during attach, rather than within the
  pci_(read|write)_config() code path; this avoids taking a blocking mutex
  to read kenv variables.

- Use a spin lock to protect non-atomic config space accesses; this matches
  the behavior of Darwin's AppleMacRiscPCI driver.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D13839
2018-01-10 22:19:11 +00:00

112 lines
3.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2002 Benno Rice.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _POWERPC_POWERMAC_UNINORTHVAR_H_
#define _POWERPC_POWERMAC_UNINORTHVAR_H_
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/ofw_pci.h>
#include <dev/ofw/ofwpci.h>
struct uninorth_softc {
struct ofw_pci_softc pci_sc;
vm_offset_t sc_addr;
vm_offset_t sc_data;
int sc_ver;
int sc_skipslot;
struct mtx sc_cfg_mtx;
};
struct unin_chip_softc {
uint64_t sc_physaddr;
uint64_t sc_size;
vm_offset_t sc_addr;
struct rman sc_mem_rman;
int sc_version;
};
/*
* Format of a unin reg property entry.
*/
struct unin_chip_reg {
u_int32_t mr_base;
u_int32_t mr_size;
};
/*
* Per unin device structure.
*/
struct unin_chip_devinfo {
int udi_interrupts[6];
int udi_ninterrupts;
int udi_base;
struct ofw_bus_devinfo udi_obdinfo;
struct resource_list udi_resources;
};
/*
* Version register
*/
#define UNIN_VERS 0x0
/*
* Clock-control register
*/
#define UNIN_CLOCKCNTL 0x20
#define UNIN_CLOCKCNTL_GMAC 0x2
/*
* Power management register
*/
#define UNIN_PWR_MGMT 0x30
#define UNIN_PWR_NORMAL 0x00
#define UNIN_PWR_IDLE2 0x01
#define UNIN_PWR_SLEEP 0x02
#define UNIN_PWR_SAVE 0x03
#define UNIN_PWR_MASK 0x03
/*
* Hardware initialization state register
*/
#define UNIN_HWINIT_STATE 0x70
#define UNIN_SLEEPING 0x01
#define UNIN_RUNNING 0x02
/*
* Toggle registers
*/
#define UNIN_TOGGLE_REG 0xe0
#define UNIN_MPIC_RESET 0x2
#define UNIN_MPIC_OUTPUT_ENABLE 0x4
extern int unin_chip_sleep(device_t dev, int idle);
extern int unin_chip_wake(device_t dev);
#endif /* _POWERPC_POWERMAC_UNINORTHVAR_H_ */