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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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86fbf1486a
Commits881a8c120aandefe1ec2783corrects pci device matching in only one way; it no longer oopses/crashes, despite hotplug is not solved in these changes. Whenever pci_find_device -> pci_get_device change is performed, also pci_dev_get and pci_dev_put should be in most cases called to properly handle hotplug. This patch does exactly this thing -- increase refcount to let kernel know, that we are using this piece of HW just now. It affects moxa and rio char drivers. Cc: <R.E.Wolff@BitWizard.nl> Acked-by: Amit Gud <gud@eth.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
124 lines
4.4 KiB
C
124 lines
4.4 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : host.h
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** SID : 1.2
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** Last Modified : 11/6/98 11:34:10
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** Retrieved : 11/6/98 11:34:21
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**
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** ident @(#)host.h 1.2
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_host_h__
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#define __rio_host_h__
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/*
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** the host structure - one per host card in the system.
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*/
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#define MAX_EXTRA_UNITS 64
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/*
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** Host data structure. This is used for the software equiv. of
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** the host.
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*/
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struct Host {
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struct pci_dev *pdev;
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unsigned char Type; /* RIO_EISA, RIO_MCA, ... */
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unsigned char Ivec; /* POLLED or ivec number */
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unsigned char Mode; /* Control stuff */
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unsigned char Slot; /* Slot */
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void __iomem *Caddr; /* KV address of DPRAM */
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struct DpRam __iomem *CardP; /* KV address of DPRAM, with overlay */
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unsigned long PaddrP; /* Phys. address of DPRAM */
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char Name[MAX_NAME_LEN]; /* The name of the host */
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unsigned int UniqueNum; /* host unique number */
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spinlock_t HostLock; /* Lock structure for MPX */
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unsigned int WorkToBeDone; /* set to true each interrupt */
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unsigned int InIntr; /* Being serviced? */
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unsigned int IntSrvDone; /* host's interrupt has been serviced */
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void (*Copy) (void *, void __iomem *, int); /* copy func */
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struct timer_list timer;
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/*
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** I M P O R T A N T !
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**
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** The rest of this data structure is cleared to zero after
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** a RIO_HOST_FOAD command.
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*/
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unsigned long Flags; /* Whats going down */
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#define RC_WAITING 0
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#define RC_STARTUP 1
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#define RC_RUNNING 2
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#define RC_STUFFED 3
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#define RC_READY 7
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#define RUN_STATE 7
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/*
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** Boot mode applies to the way in which hosts in this system will
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** boot RTAs
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*/
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#define RC_BOOT_ALL 0x8 /* Boot all RTAs attached */
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#define RC_BOOT_OWN 0x10 /* Only boot RTAs bound to this system */
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#define RC_BOOT_NONE 0x20 /* Don't boot any RTAs (slave mode) */
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struct Top Topology[LINKS_PER_UNIT]; /* one per link */
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struct Map Mapping[MAX_RUP]; /* Mappings for host */
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struct PHB __iomem *PhbP; /* Pointer to the PHB array */
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unsigned short __iomem *PhbNumP; /* Ptr to Number of PHB's */
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struct LPB __iomem *LinkStrP; /* Link Structure Array */
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struct RUP __iomem *RupP; /* Sixteen real rups here */
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struct PARM_MAP __iomem *ParmMapP; /* points to the parmmap */
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unsigned int ExtraUnits[MAX_EXTRA_UNITS]; /* unknown things */
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unsigned int NumExtraBooted; /* how many of the above */
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/*
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** Twenty logical rups.
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** The first sixteen are the real Rup entries (above), the last four
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** are the link RUPs.
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*/
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struct UnixRup UnixRups[MAX_RUP + LINKS_PER_UNIT];
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int timeout_id; /* For calling 100 ms delays */
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int timeout_sem; /* For calling 100 ms delays */
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long locks; /* long req'd for set_bit --RR */
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char ____end_marker____;
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};
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#define Control CardP->DpControl
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#define SetInt CardP->DpSetInt
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#define ResetTpu CardP->DpResetTpu
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#define ResetInt CardP->DpResetInt
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#define Signature CardP->DpSignature
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#define Sram1 CardP->DpSram1
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#define Sram2 CardP->DpSram2
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#define Sram3 CardP->DpSram3
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#define Scratch CardP->DpScratch
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#define __ParmMapR CardP->DpParmMapR
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#define SLX CardP->DpSlx
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#define Revision CardP->DpRevision
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#define Unique CardP->DpUnique
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#define Year CardP->DpYear
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#define Week CardP->DpWeek
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#define RIO_DUMBPARM 0x0860 /* what not to expect */
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#endif
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