Add a new option EVBARM_BOARDTYPE to differentiate between different

evbarm ports.  Inline _splraise/_spllower/splx for i80321 and iq80310
for more performance.
This commit is contained in:
briggs 2002-08-17 16:42:20 +00:00
parent 003b8e8bca
commit 126f6cf9bc
14 changed files with 542 additions and 121 deletions

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@ -1,4 +1,4 @@
/* $NetBSD: i80321_icu.c,v 1.4 2002/08/14 19:47:18 thorpej Exp $ */
/* $NetBSD: i80321_icu.c,v 1.5 2002/08/17 16:42:20 briggs Exp $ */
/*
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
@ -57,13 +57,13 @@
struct intrq intrq[NIRQ];
/* Interrupts to mask at each level. */
static int imask[NIPL];
int i80321_imask[NIPL];
/* Current interrupt priority level. */
__volatile int current_spl_level;
/* Interrupts pending. */
static __volatile int ipending;
__volatile int i80321_ipending;
/* Software copy of the IRQs we have enabled. */
__volatile uint32_t intr_enabled;
@ -155,14 +155,17 @@ i80321_iintsrc_read(void)
return (iintsrc & intr_enabled);
}
#if defined(EVBARM_SPL_NOINLINE)
static __inline void
i80321_set_intrmask(void)
{
extern __volatile uint32_t intr_enabled;
__asm __volatile("mcr p6, 0, %0, c0, c0, 0"
:
: "r" (intr_enabled & ICU_INT_HWMASK));
}
#endif
static __inline void
i80321_set_intrsteer(void)
@ -217,76 +220,76 @@ i80321_intr_calculate_masks(void)
if (intrq[irq].iq_levels & (1U << ipl))
irqs |= (1U << irq);
}
imask[ipl] = irqs;
i80321_imask[ipl] = irqs;
}
imask[IPL_NONE] = 0;
i80321_imask[IPL_NONE] = 0;
/*
* Initialize the soft interrupt masks to block themselves.
*/
imask[IPL_SOFT] = SI_TO_IRQBIT(SI_SOFT);
imask[IPL_SOFTCLOCK] = SI_TO_IRQBIT(SI_SOFTCLOCK);
imask[IPL_SOFTNET] = SI_TO_IRQBIT(SI_SOFTNET);
imask[IPL_SOFTSERIAL] = SI_TO_IRQBIT(SI_SOFTSERIAL);
i80321_imask[IPL_SOFT] = SI_TO_IRQBIT(SI_SOFT);
i80321_imask[IPL_SOFTCLOCK] = SI_TO_IRQBIT(SI_SOFTCLOCK);
i80321_imask[IPL_SOFTNET] = SI_TO_IRQBIT(SI_SOFTNET);
i80321_imask[IPL_SOFTSERIAL] = SI_TO_IRQBIT(SI_SOFTSERIAL);
/*
* splsoftclock() is the only interface that users of the
* generic software interrupt facility have to block their
* soft intrs, so splsoftclock() must also block IPL_SOFT.
*/
imask[IPL_SOFTCLOCK] |= imask[IPL_SOFT];
i80321_imask[IPL_SOFTCLOCK] |= i80321_imask[IPL_SOFT];
/*
* splsoftnet() must also block splsoftclock(), since we don't
* want timer-driven network events to occur while we're
* processing incoming packets.
*/
imask[IPL_SOFTNET] |= imask[IPL_SOFTCLOCK];
i80321_imask[IPL_SOFTNET] |= i80321_imask[IPL_SOFTCLOCK];
/*
* Enforce a heirarchy that gives "slow" device (or devices with
* limited input buffer space/"real-time" requirements) a better
* chance at not dropping data.
*/
imask[IPL_BIO] |= imask[IPL_SOFTNET];
imask[IPL_NET] |= imask[IPL_BIO];
imask[IPL_SOFTSERIAL] |= imask[IPL_NET];
imask[IPL_TTY] |= imask[IPL_SOFTSERIAL];
i80321_imask[IPL_BIO] |= i80321_imask[IPL_SOFTNET];
i80321_imask[IPL_NET] |= i80321_imask[IPL_BIO];
i80321_imask[IPL_SOFTSERIAL] |= i80321_imask[IPL_NET];
i80321_imask[IPL_TTY] |= i80321_imask[IPL_SOFTSERIAL];
/*
* splvm() blocks all interrupts that use the kernel memory
* allocation facilities.
*/
imask[IPL_IMP] |= imask[IPL_TTY];
i80321_imask[IPL_IMP] |= i80321_imask[IPL_TTY];
/*
* Audio devices are not allowed to perform memory allocation
* in their interrupt routines, and they have fairly "real-time"
* requirements, so give them a high interrupt priority.
*/
imask[IPL_AUDIO] |= imask[IPL_IMP];
i80321_imask[IPL_AUDIO] |= i80321_imask[IPL_IMP];
/*
* splclock() must block anything that uses the scheduler.
*/
imask[IPL_CLOCK] |= imask[IPL_AUDIO];
i80321_imask[IPL_CLOCK] |= i80321_imask[IPL_AUDIO];
/*
* No separate statclock on the IQ80310.
*/
imask[IPL_STATCLOCK] |= imask[IPL_CLOCK];
i80321_imask[IPL_STATCLOCK] |= i80321_imask[IPL_CLOCK];
/*
* splhigh() must block "everything".
*/
imask[IPL_HIGH] |= imask[IPL_STATCLOCK];
i80321_imask[IPL_HIGH] |= i80321_imask[IPL_STATCLOCK];
/*
* XXX We need serial drivers to run at the absolute highest priority
* in order to avoid overruns, so serial > high.
*/
imask[IPL_SERIAL] |= imask[IPL_HIGH];
i80321_imask[IPL_SERIAL] |= i80321_imask[IPL_HIGH];
/*
* Now compute which IRQs must be blocked when servicing any
@ -299,12 +302,12 @@ i80321_intr_calculate_masks(void)
i80321_enable_irq(irq);
for (ih = TAILQ_FIRST(&iq->iq_list); ih != NULL;
ih = TAILQ_NEXT(ih, ih_list))
irqs |= imask[ih->ih_ipl];
irqs |= i80321_imask[ih->ih_ipl];
iq->iq_mask = irqs;
}
}
static void
__inline void
i80321_do_pending(void)
{
static __cpu_simple_lock_t processing = __SIMPLELOCK_UNLOCKED;
@ -318,9 +321,9 @@ i80321_do_pending(void)
oldirqstate = disable_interrupts(I32_bit);
#define DO_SOFTINT(si) \
if ((ipending & ~new) & SI_TO_IRQBIT(si)) { \
ipending &= ~SI_TO_IRQBIT(si); \
current_spl_level |= imask[si_to_ipl[(si)]]; \
if ((i80321_ipending & ~new) & SI_TO_IRQBIT(si)) { \
i80321_ipending &= ~SI_TO_IRQBIT(si); \
current_spl_level |= i80321_imask[si_to_ipl[(si)]]; \
restore_interrupts(oldirqstate); \
softintr_dispatch(si); \
oldirqstate = disable_interrupts(I32_bit); \
@ -337,16 +340,7 @@ i80321_do_pending(void)
restore_interrupts(oldirqstate);
}
int
_splraise(int ipl)
{
int old;
old = current_spl_level;
current_spl_level |= imask[ipl];
return (old);
}
#if defined(EVBARM_SPL_NOINLINE)
__inline void
splx(int new)
@ -355,12 +349,7 @@ splx(int new)
current_spl_level = new;
/*
* If there are pending HW interrupts which are being
* unmasked, then enable them in the INTCTL register.
* This will cause them to come flooding in.
*/
hwpend = (ipending & ICU_INT_HWMASK) & ~new;
hwpend = (i80321_ipending & ICU_INT_HWMASK) & ~new;
if (hwpend != 0) {
oldirqstate = disable_interrupts(I32_bit);
intr_enabled |= hwpend;
@ -368,31 +357,66 @@ splx(int new)
restore_interrupts(oldirqstate);
}
/* If there are software interrupts to process, do it. */
if ((ipending & INT_SWMASK) & ~new)
if ((i80321_ipending & INT_SWMASK) & ~new)
i80321_do_pending();
}
int
_splraise(int ipl)
{
int old;
old = current_spl_level;
current_spl_level |= i80321_imask[ipl];
return (old);
}
int
_spllower(int ipl)
{
int old = current_spl_level;
splx(imask[ipl]);
return (old);
splx(i80321_imask[ipl]);
return(old);
}
#else /* EVBARM_SPL_NOINLINE */
#undef splx
__inline void
splx(int new)
{
i80321_splx(new);
}
#undef _spllower
int
_spllower(int ipl)
{
return i80321_spllower(ipl);
}
#undef _splraise
int
_splraise(int ipl)
{
return i80321_splraise(ipl);
}
#endif /* else EVBARM_SPL_NOINLINE */
void
_setsoftintr(int si)
{
int oldirqstate;
oldirqstate = disable_interrupts(I32_bit);
ipending |= SI_TO_IRQBIT(si);
i80321_ipending |= SI_TO_IRQBIT(si);
restore_interrupts(oldirqstate);
/* Process unmasked pending soft interrupts. */
if ((ipending & INT_SWMASK) & ~current_spl_level)
if ((i80321_ipending & INT_SWMASK) & ~current_spl_level)
i80321_do_pending();
}
@ -521,11 +545,11 @@ i80321_intr_dispatch(struct clockframe *frame)
* IRQ is masked; mark it as pending and check
* the next one. Note: the IRQ is already disabled.
*/
ipending |= ibit;
i80321_ipending |= ibit;
continue;
}
ipending &= ~ibit;
i80321_ipending &= ~ibit;
iq = &intrq[irq];
iq->iq_ev.ev_count++;
@ -546,7 +570,7 @@ i80321_intr_dispatch(struct clockframe *frame)
}
/* Check for pendings soft intrs. */
if ((ipending & INT_SWMASK) & ~current_spl_level) {
if ((i80321_ipending & INT_SWMASK) & ~current_spl_level) {
oldirqstate = enable_interrupts(I32_bit);
i80321_do_pending();
restore_interrupts(oldirqstate);

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@ -0,0 +1,124 @@
/* $NetBSD: i80321_intr.h,v 1.1 2002/08/17 16:42:20 briggs Exp $ */
/*
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
#ifndef _I80321_INTR_H_
#define _I80321_INTR_H_
#include <arm/armreg.h>
#include <arm/cpufunc.h>
#include <arm/xscale/i80321reg.h>
#if !defined(EVBARM_SPL_NOINLINE)
static __inline void
i80321_set_intrmask(void)
{
extern __volatile uint32_t intr_enabled;
__asm __volatile("mcr p6, 0, %0, c0, c0, 0"
:
: "r" (intr_enabled & ICU_INT_HWMASK));
}
#define INT_SWMASK \
((1U << ICU_INT_bit26) | (1U << ICU_INT_bit22) | \
(1U << ICU_INT_bit5) | (1U << ICU_INT_bit4))
static __inline void
i80321_splx(int new)
{
extern __volatile uint32_t intr_enabled;
extern __volatile int current_spl_level;
extern __volatile int i80321_ipending;
extern void i80321_do_pending(void);
int oldirqstate, hwpend;
current_spl_level = new;
hwpend = (i80321_ipending & ICU_INT_HWMASK) & ~new;
if (hwpend != 0) {
oldirqstate = disable_interrupts(I32_bit);
intr_enabled |= hwpend;
i80321_set_intrmask();
restore_interrupts(oldirqstate);
}
if ((i80321_ipending & INT_SWMASK) & ~new)
i80321_do_pending();
}
static __inline int
i80321_splraise(int ipl)
{
extern __volatile int current_spl_level;
extern int i80321_imask[];
int old;
old = current_spl_level;
current_spl_level |= i80321_imask[ipl];
return (old);
}
static __inline int
i80321_spllower(int ipl)
{
extern __volatile int current_spl_level;
extern int i80321_imask[];
int old = current_spl_level;
i80321_splx(i80321_imask[ipl]);
return(old);
}
#define splx(new) i80321_splx(new)
#define _spllower(ipl) i80321_spllower(ipl)
#define _splraise(ipl) i80321_splraise(ipl)
void _setsoftintr(int);
#undef INT_SWMASK
#else /* !EVBARM_SPL_NOINTR */
int _splraise(int);
int _spllower(int);
void splx(int);
void _setsoftintr(int);
#endif /* else !EVBARM_SPL_NOINTR */
#endif _I80321_INTR_H_

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@ -1,4 +1,4 @@
# $NetBSD: IQ80321,v 1.9 2002/08/07 03:41:43 thorpej Exp $
# $NetBSD: IQ80321,v 1.10 2002/08/17 16:42:21 briggs Exp $
#
# IQ80321 -- Intel IQ80321 Evaluation Board Kernel
#
@ -23,6 +23,9 @@ options CPU_XSCALE_80321 # Support the XScale core
makeoptions COPTS="-O2 -mcpu=xscale"
# Architecture options
options PERFCTRS
options XSCALE_CACHE_READ_WRITE_ALLOCATE
options HZ=512
# File systems
@ -68,6 +71,7 @@ options INET6 # IPV6
#options PPP_DEFLATE # Deflate compression support for PPP
#options PPP_FILTER # Active filter support for PPP (requires bpf)
#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
options SOSEND_LOAN
options NFS_BOOT_BOOTP
options NFS_BOOT_DHCP
@ -176,6 +180,7 @@ pseudo-device vnd 4 # disk-like interface to files
# network pseudo-devices
pseudo-device bpfilter 4 # Berkeley packet filter
pseudo-device loop # network loopback
pseudo-device kttcp # network loopback
# miscellaneous pseudo-devices
pseudo-device pty # pseudo-terminals

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@ -1,4 +1,4 @@
# $NetBSD: TEAMASA_NPWR,v 1.17 2002/08/07 03:40:01 thorpej Exp $
# $NetBSD: TEAMASA_NPWR,v 1.18 2002/08/17 16:42:21 briggs Exp $
#
# TEAMASA_NPWR -- Team ASA, Inc. Npwr -- XScale/IOP310-based
# server appliance.
@ -26,6 +26,8 @@ makeoptions COPTS="-O2 -mcpu=xscale"
options XSCALE_CCLKCFG=7 # 600MHz
# Architecture options
options PERFCTRS
options XSCALE_CACHE_READ_WRITE_ALLOCATE
# File systems
@ -71,6 +73,7 @@ options INET6 # IPV6
#options PPP_DEFLATE # Deflate compression support for PPP
#options PPP_FILTER # Active filter support for PPP (requires bpf)
#options TCP_DEBUG # Record last TCP_NDEBUG packets with SO_DEBUG
options SOSEND_LOAN
options NFS_BOOT_BOOTP
options NFS_BOOT_DHCP
@ -192,6 +195,7 @@ pseudo-device raid 4 # RAIDframe devices
# network pseudo-devices
pseudo-device bpfilter 4 # Berkeley packet filter
pseudo-device loop # network loopback
pseudo-device kttcp
# miscellaneous pseudo-devices
pseudo-device pty # pseudo-terminals

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@ -1,4 +1,4 @@
# $NetBSD: files.evbarm,v 1.13 2002/07/20 03:09:04 ichiro Exp $
# $NetBSD: files.evbarm,v 1.14 2002/08/17 16:42:21 briggs Exp $
#
# First try for arm-specific configuration info
#
@ -66,6 +66,7 @@ include "dev/cardbus/files.cardbus" # CARDBus device
#
# ARM evaluation board specific devices
#
defparam opt_evbarm_boardtype.h EVBARM_BOARDTYPE
# We need to define the Integrator's "plcom" device here since
# it we need to generate a "plcom.h" header file for conf.c

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@ -1,6 +1,6 @@
# $NetBSD: std.integrator,v 1.5 2002/01/30 03:59:40 thorpej Exp $
# $NetBSD: std.integrator,v 1.6 2002/08/17 16:42:22 briggs Exp $
#
# standard NetBSD/netwinder options
# standard NetBSD/integrator options
machine evbarm arm
@ -19,3 +19,5 @@ options __OLD_INTERRUPT_CODE # XXX for now
makeoptions LOADADDRESS="0xa0100000"
makeoptions LINKENTRY="-e 0x10000"
makeoptions BOARDTYPE="integrator"
options EVBARM_BOARDTYPE=EVBARM_BOARDTYPE_INTEGRATOR

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@ -1,4 +1,4 @@
# $NetBSD: std.iq80310,v 1.11 2002/04/25 01:50:01 briggs Exp $
# $NetBSD: std.iq80310,v 1.12 2002/08/17 16:42:22 briggs Exp $
#
# standard NetBSD/evbarm for IQ80310 options
@ -17,5 +17,7 @@ options ARM32
makeoptions LOADADDRESS="0xa0200000"
makeoptions BOARDTYPE="iq80310"
options EVBARM_BOARDTYPE=EVBARM_BOARDTYPE_IQ80310
# We need to configure the PCI bus.
options PCI_NETBSD_CONFIGURE

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@ -1,4 +1,4 @@
# $NetBSD: std.iq80321,v 1.2 2002/04/25 01:47:56 briggs Exp $
# $NetBSD: std.iq80321,v 1.3 2002/08/17 16:42:22 briggs Exp $
#
# standard NetBSD/evbarm for IQ80321 options
@ -17,5 +17,7 @@ options ARM32
makeoptions LOADADDRESS="0xa0200000"
makeoptions BOARDTYPE="iq80321"
options EVBARM_BOARDTYPE=EVBARM_BOARDTYPE_I80321
# We need to configure the PCI bus.
options PCI_NETBSD_CONFIGURE

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@ -1,4 +1,4 @@
# $NetBSD: std.ixm1200,v 1.1 2002/07/15 17:13:31 ichiro Exp $
# $NetBSD: std.ixm1200,v 1.2 2002/08/17 16:42:22 briggs Exp $
#
# standard NetBSD/evbarm for IXM1200 options
@ -17,6 +17,8 @@ options ARM32
makeoptions LOADADDRESS="0xC0200000"
makeoptions BOARDTYPE="ixm1200"
options EVBARM_BOARDTYPE=EVBARM_BOARDTYPE_IXM1200
# We need to configure the PCI bus.
options PCI_NETBSD_CONFIGURE
#options __OLD_INTERRUPT_CODE # XXX XXX for now

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@ -1,3 +1,14 @@
/* $NetBSD: cpu.h,v 1.1 2001/11/25 15:56:03 thorpej Exp $ */
/* $NetBSD: cpu.h,v 1.2 2002/08/17 16:42:22 briggs Exp $ */
#if defined(_KERNEL) && !defined(_LKM)
#include "opt_evbarm_boardtype.h"
#define EVBARM_BOARDTYPE_INTEGRATOR 1
#define EVBARM_BOARDTYPE_IQ80310 2
#define EVBARM_BOARDTYPE_I80321 3
#define EVBARM_BOARDTYPE_IXM1200 4
#endif
#include <arm/cpu.h>

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@ -1,4 +1,4 @@
/* $NetBSD: intr.h,v 1.7 2002/01/30 03:59:41 thorpej Exp $ */
/* $NetBSD: intr.h,v 1.8 2002/08/17 16:42:22 briggs Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
@ -85,10 +85,66 @@
#include <sys/device.h>
#include <sys/queue.h>
int _splraise(int); /* provided by BSP */
int _spllower(int); /* provided by BSP */
void splx(int); /* provided by BSP */
void _setsoftintr(int); /* provided by BSP */
#if defined(_LKM)
int _splraise(int);
int _spllower(int);
void splx(int);
void _setsoftintr(int);
#else /* _LKM */
#if defined(EVBARM_BOARDTYPE)
#include <machine/cpu.h>
/*
* Each board needs to define the following functions:
*
* int _splraise(int);
* int _spllower(int);
* void splx(int);
* void _setsoftintr(int);
*
* These may be defined as functions, static __inline functions, or macros,
* but there must be a _spllower() and splx() defined as functions callable
* from assembly language (for cpu_switch()). However, since it's quite
* useful to be able to inline splx(), you could do something like the
* following:
*
* in <boardtype>_intr.h:
* static __inline int
* boardtype_splx(int spl)
* {...}
*
* #define splx(nspl) boardtype_splx(nspl)
* ...
* and in boardtype's machdep code:
*
* ...
* #undef splx
* int
* splx(int spl)
* {
* return boardtype_splx(spl);
* }
*/
#if EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_IQ80310
#include <arch/evbarm/iq80310/iq80310_intr.h>
#elif EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_I80321
#include <arch/arm/xscale/i80321_intr.h>
#elif EVBARM_BOARDTYPE == EVBARM_BOARDTYPE_IXM1200
#include <arch/evbarm/ixm1200/ixm1200_intr.h>
#endif
#else /* EVBARM_BOARDTYPE */
#error EVBARM_BOARDTYPE not defined.
#endif /* else EVBARM_BOARDTYPE */
#endif /* else _LKM */
#define splhigh() _splraise(IPL_HIGH)
#define splsoft() _splraise(IPL_SOFT)

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@ -1,4 +1,4 @@
/* $NetBSD: iq80310_intr.c,v 1.16 2002/08/14 19:48:04 thorpej Exp $ */
/* $NetBSD: iq80310_intr.c,v 1.17 2002/08/17 16:42:23 briggs Exp $ */
/*
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
@ -57,37 +57,17 @@
#include <evbarm/iq80310/iq80310var.h>
#include <evbarm/iq80310/obiovar.h>
#if defined(IOP310_TEAMASA_NPWR)
/*
* We have 5 interrupt source bits -- all in XINT3. All interrupts
* can be masked in the CPLD.
*/
#define IRQ_BITS 0x1f
#define IRQ_BITS_ALWAYS_ON 0x00
#else /* Default to stock IQ80310 */
/*
* We have 8 interrupt source bits -- 5 in the XINT3 register, and 3
* in the XINT0 register (the upper 3). Note that the XINT0 IRQs
* (SPCI INTA, INTB, and INTC) are always enabled, since they can not
* be masked out in the CPLD (it provides only status, not masking,
* for those interrupts).
*/
#define IRQ_BITS 0xff
#define IRQ_BITS_ALWAYS_ON 0xe0
#define IRQ_READ_XINT0 1 /* XXX only if board rev >= F */
#endif /* list of IQ80310-based designs */
/* Interrupt handler queues. */
struct intrq intrq[NIRQ];
/* Interrupts to mask at each level. */
static int imask[NIPL];
int iq80310_imask[NIPL];
/* Current interrupt priority level. */
__volatile int current_spl_level;
/* Interrupts pending. */
static __volatile int ipending;
__volatile int iq80310_ipending;
/* Software copy of the IRQs we have enabled. */
uint32_t intr_enabled;
@ -182,76 +162,76 @@ iq80310_intr_calculate_masks(void)
if (intrq[irq].iq_levels & (1U << ipl))
irqs |= (1U << irq);
}
imask[ipl] = irqs;
iq80310_imask[ipl] = irqs;
}
imask[IPL_NONE] = 0;
iq80310_imask[IPL_NONE] = 0;
/*
* Initialize the soft interrupt masks to block themselves.
*/
imask[IPL_SOFT] = SI_TO_IRQBIT(SI_SOFT);
imask[IPL_SOFTCLOCK] = SI_TO_IRQBIT(SI_SOFTCLOCK);
imask[IPL_SOFTNET] = SI_TO_IRQBIT(SI_SOFTNET);
imask[IPL_SOFTSERIAL] = SI_TO_IRQBIT(SI_SOFTSERIAL);
iq80310_imask[IPL_SOFT] = SI_TO_IRQBIT(SI_SOFT);
iq80310_imask[IPL_SOFTCLOCK] = SI_TO_IRQBIT(SI_SOFTCLOCK);
iq80310_imask[IPL_SOFTNET] = SI_TO_IRQBIT(SI_SOFTNET);
iq80310_imask[IPL_SOFTSERIAL] = SI_TO_IRQBIT(SI_SOFTSERIAL);
/*
* splsoftclock() is the only interface that users of the
* generic software interrupt facility have to block their
* soft intrs, so splsoftclock() must also block IPL_SOFT.
*/
imask[IPL_SOFTCLOCK] |= imask[IPL_SOFT];
iq80310_imask[IPL_SOFTCLOCK] |= iq80310_imask[IPL_SOFT];
/*
* splsoftnet() must also block splsoftclock(), since we don't
* want timer-driven network events to occur while we're
* processing incoming packets.
*/
imask[IPL_SOFTNET] |= imask[IPL_SOFTCLOCK];
iq80310_imask[IPL_SOFTNET] |= iq80310_imask[IPL_SOFTCLOCK];
/*
* Enforce a heirarchy that gives "slow" device (or devices with
* limited input buffer space/"real-time" requirements) a better
* chance at not dropping data.
*/
imask[IPL_BIO] |= imask[IPL_SOFTNET];
imask[IPL_NET] |= imask[IPL_BIO];
imask[IPL_SOFTSERIAL] |= imask[IPL_NET];
imask[IPL_TTY] |= imask[IPL_SOFTSERIAL];
iq80310_imask[IPL_BIO] |= iq80310_imask[IPL_SOFTNET];
iq80310_imask[IPL_NET] |= iq80310_imask[IPL_BIO];
iq80310_imask[IPL_SOFTSERIAL] |= iq80310_imask[IPL_NET];
iq80310_imask[IPL_TTY] |= iq80310_imask[IPL_SOFTSERIAL];
/*
* splvm() blocks all interrupts that use the kernel memory
* allocation facilities.
*/
imask[IPL_IMP] |= imask[IPL_TTY];
iq80310_imask[IPL_IMP] |= iq80310_imask[IPL_TTY];
/*
* Audio devices are not allowed to perform memory allocation
* in their interrupt routines, and they have fairly "real-time"
* requirements, so give them a high interrupt priority.
*/
imask[IPL_AUDIO] |= imask[IPL_IMP];
iq80310_imask[IPL_AUDIO] |= iq80310_imask[IPL_IMP];
/*
* splclock() must block anything that uses the scheduler.
*/
imask[IPL_CLOCK] |= imask[IPL_AUDIO];
iq80310_imask[IPL_CLOCK] |= iq80310_imask[IPL_AUDIO];
/*
* No separate statclock on the IQ80310.
*/
imask[IPL_STATCLOCK] |= imask[IPL_CLOCK];
iq80310_imask[IPL_STATCLOCK] |= iq80310_imask[IPL_CLOCK];
/*
* splhigh() must block "everything".
*/
imask[IPL_HIGH] |= imask[IPL_STATCLOCK];
iq80310_imask[IPL_HIGH] |= iq80310_imask[IPL_STATCLOCK];
/*
* XXX We need serial drivers to run at the absolute highest priority
* in order to avoid overruns, so serial > high.
*/
imask[IPL_SERIAL] |= imask[IPL_HIGH];
iq80310_imask[IPL_SERIAL] |= iq80310_imask[IPL_HIGH];
/*
* Now compute which IRQs must be blocked when servicing any
@ -264,12 +244,12 @@ iq80310_intr_calculate_masks(void)
iq80310_enable_irq(irq);
for (ih = TAILQ_FIRST(&iq->iq_list); ih != NULL;
ih = TAILQ_NEXT(ih, ih_list))
irqs |= imask[ih->ih_ipl];
irqs |= iq80310_imask[ih->ih_ipl];
iq->iq_mask = irqs;
}
}
static void
void
iq80310_do_soft(void)
{
static __cpu_simple_lock_t processing = __SIMPLELOCK_UNLOCKED;
@ -283,9 +263,9 @@ iq80310_do_soft(void)
oldirqstate = disable_interrupts(I32_bit);
#define DO_SOFTINT(si) \
if ((ipending & ~new) & SI_TO_IRQBIT(si)) { \
ipending &= ~SI_TO_IRQBIT(si); \
current_spl_level |= imask[si_to_ipl[(si)]]; \
if ((iq80310_ipending & ~new) & SI_TO_IRQBIT(si)) { \
iq80310_ipending &= ~SI_TO_IRQBIT(si); \
current_spl_level |= iq80310_imask[si_to_ipl[(si)]]; \
restore_interrupts(oldirqstate); \
softintr_dispatch(si); \
oldirqstate = disable_interrupts(I32_bit); \
@ -302,13 +282,14 @@ iq80310_do_soft(void)
restore_interrupts(oldirqstate);
}
#if defined(EVBARM_SPL_NOINLINE)
int
_splraise(int ipl)
{
int old;
old = current_spl_level;
current_spl_level |= imask[ipl];
current_spl_level |= iq80310_imask[ipl];
return (old);
}
@ -322,7 +303,7 @@ splx(int new)
current_spl_level = new;
/* If there are software interrupts to process, do it. */
if ((ipending & ~IRQ_BITS) & ~new)
if ((iq80310_ipending & ~IRQ_BITS) & ~new)
iq80310_do_soft();
/*
@ -335,7 +316,7 @@ splx(int new)
* XXX be unblocked, because we currently lose if we
* XXX get nested interrupts, and I don't know why yet.
*/
if ((new & IRQ_BITS) == 0 && (ipending & IRQ_BITS))
if ((new & IRQ_BITS) == 0 && (iq80310_ipending & IRQ_BITS))
i80200_intr_enable(INTCTL_IM | INTCTL_PM);
}
@ -344,21 +325,45 @@ _spllower(int ipl)
{
int old = current_spl_level;
splx(imask[ipl]);
iq80310_splx(iq80310_imask[ipl]);
return (old);
}
#else
#undef _splraise
int
_splraise(int ipl)
{
return iq80310_splraise(ipl);
}
#undef splx
__inline void
splx(int new)
{
return iq80310_splx(new);
}
#undef _spllower
int
_spllower(int ipl)
{
return iq80310_spllower(ipl);
}
#endif
void
_setsoftintr(int si)
{
int oldirqstate;
oldirqstate = disable_interrupts(I32_bit);
ipending |= SI_TO_IRQBIT(si);
iq80310_ipending |= SI_TO_IRQBIT(si);
restore_interrupts(oldirqstate);
/* Process unmasked pending soft interrupts. */
if ((ipending & ~IRQ_BITS) & ~current_spl_level)
if ((iq80310_ipending & ~IRQ_BITS) & ~current_spl_level)
iq80310_do_soft();
}
@ -473,11 +478,11 @@ iq80310_intr_dispatch(struct clockframe *frame)
* the next one. Note: external IRQs are already
* disabled.
*/
ipending |= ibit;
iq80310_ipending |= ibit;
continue;
}
ipending &= ~ibit;
iq80310_ipending &= ~ibit;
rv = 0;
iq = &intrq[irq];
@ -505,7 +510,7 @@ iq80310_intr_dispatch(struct clockframe *frame)
#endif
/* Check for pendings soft intrs. */
if ((ipending & ~IRQ_BITS) & ~current_spl_level) {
if ((iq80310_ipending & ~IRQ_BITS) & ~current_spl_level) {
oldirqstate = enable_interrupts(I32_bit);
iq80310_do_soft();
restore_interrupts(oldirqstate);
@ -515,6 +520,6 @@ iq80310_intr_dispatch(struct clockframe *frame)
* If no hardware interrupts are masked, re-enable external
* interrupts.
*/
if ((ipending & IRQ_BITS) == 0)
if ((iq80310_ipending & IRQ_BITS) == 0)
i80200_intr_enable(INTCTL_IM | INTCTL_PM);
}

View File

@ -0,0 +1,137 @@
/* $NetBSD: iq80310_intr.h,v 1.1 2002/08/17 16:42:23 briggs Exp $ */
/*
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
#ifndef _IQ80310_INTR_H_
#define _IQ80310_INTR_H_
#include "opt_iop310.h"
#include <arm/armreg.h>
#include <arm/cpufunc.h>
#include <arm/xscale/i80200reg.h>
#include <arm/xscale/i80200var.h>
#if defined(IOP310_TEAMASA_NPWR)
/*
* We have 5 interrupt source bits -- all in XINT3. All interrupts
* can be masked in the CPLD.
*/
#define IRQ_BITS 0x1f
#define IRQ_BITS_ALWAYS_ON 0x00
#else /* Default to stock IQ80310 */
/*
* We have 8 interrupt source bits -- 5 in the XINT3 register, and 3
* in the XINT0 register (the upper 3). Note that the XINT0 IRQs
* (SPCI INTA, INTB, and INTC) are always enabled, since they can not
* be masked out in the CPLD (it provides only status, not masking,
* for those interrupts).
*/
#define IRQ_BITS 0xff
#define IRQ_BITS_ALWAYS_ON 0xe0
#define IRQ_READ_XINT0 1 /* XXX only if board rev >= F */
#endif /* list of IQ80310-based designs */
void iq80310_do_soft(void);
#if !defined(EVBARM_SPL_NOINLINE)
static __inline int
iq80310_splraise(int ipl)
{
extern __volatile int current_spl_level;
extern int iq80310_imask[];
int old;
old = current_spl_level;
current_spl_level |= iq80310_imask[ipl];
return (old);
}
static __inline void
iq80310_splx(int new)
{
extern __volatile int iq80310_ipending;
extern __volatile int current_spl_level;
int old;
old = current_spl_level;
current_spl_level = new;
/* If there are software interrupts to process, do it. */
if ((iq80310_ipending & ~IRQ_BITS) & ~new)
iq80310_do_soft();
/*
* If there are pending hardware interrupts (i.e. the
* external interrupt is disabled in the ICU), and all
* hardware interrupts are being unblocked, then re-enable
* the external hardware interrupt.
*
* XXX We have to wait for ALL hardware interrupts to
* XXX be unblocked, because we currently lose if we
* XXX get nested interrupts, and I don't know why yet.
*/
if ((new & IRQ_BITS) == 0 && (iq80310_ipending & IRQ_BITS))
i80200_intr_enable(INTCTL_IM | INTCTL_PM);
}
static __inline int
iq80310_spllower(int ipl)
{
extern __volatile int current_spl_level;
extern int iq80310_imask[];
int old = current_spl_level;
iq80310_splx(iq80310_imask[ipl]);
return (old);
}
#define _splraise(ipl) iq80310_splraise(ipl)
#define _spllower(ipl) iq80310_spllower(ipl)
#define splx(spl) iq80310_splx(spl)
void _setsoftintr(int);
#else
int _splraise(int);
int _spllower(int);
void splx(int);
void _setsoftintr(int);
#endif
#endif /* _IQ80310_INTR_H_ */

View File

@ -0,0 +1,46 @@
/* $NetBSD: ixm1200_intr.h,v 1.1 2002/08/17 16:42:23 briggs Exp $ */
/*
* Copyright (c) 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Allen Briggs for Wasabi Systems, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
#ifndef _IXM1200_INTR_H_
#define _IXM1200_INTR_H_
int _splraise(int);
int _spllower(int);
void splx(int);
void _setsoftintr(int);
#endif /* _IXM1200_INTR_H_ */