apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Browse Source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (29 commits)
  m68k/mac: Remove mac_irq_{en,dis}able() wrappers
  m68k/irq: Remove obsolete support for user vector interrupt fixups
  m68k/irq: Remove obsolete m68k irq framework
  m68k/q40: Convert Q40/Q60 to genirq
  m68k/sun3: Convert Sun3/3x to genirq
  m68k/sun3: Use the kstat_irqs_cpu() wrapper
  m68k/apollo: Convert Apollo to genirq
  m68k/vme: Convert VME to genirq
  m68k/hp300: Convert HP9000/300 and HP9000/400 to genirq
  m68k/mac: Optimize interrupts using chain handlers
  m68k/mac: Convert Mac to genirq
  m68k/amiga: Optimize interrupts using chain handlers
  m68k/amiga: Convert Amiga to genirq
  m68k/amiga: Refactor amiints.c
  m68k/atari: Remove code and comments about different irq types
  m68k/atari: Convert Atari to genirq
  m68k/irq: Add genirq support
  m68k/irq: Remove obsolete IRQ_FLG_* users
  m68k/irq: Rename {,__}m68k_handle_int()
  m68k/irq: Add m68k_setup_irq_controller()
  ...
This commit is contained in:
Linus Torvalds
2011-11-12 00:04:51 -02:00
parent e6f1227e8b 2690e2148b
commit 8f042aa75a
31 changed files with 456 additions and 1006 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/m68k/Kconfig
+2 -2
View File
@@ -4,8 +4,8 @@ config M68K
select HAVE_IDE
select HAVE_AOUT if MMU
select GENERIC_ATOMIC64 if MMU
select HAVE_GENERIC_HARDIRQS if !MMU
select GENERIC_IRQ_SHOW if !MMU
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select ARCH_HAVE_NMI_SAFE_CMPXCHG if RMW_INSNS
config RWSEM_GENERIC_SPINLOCK
arch/m68k/Kconfig.bus
+9
View File
@@ -2,6 +2,15 @@ if MMU
comment "Bus Support"
config DIO
bool "DIO bus support"
depends on HP300
default y
help
Say Y here to enable support for the "DIO" expansion bus used in
HP300 machines. If you are using such a system you almost certainly
want this.
config NUBUS
bool
depends on MAC
arch/m68k/Kconfig.devices
+31
View File
@@ -24,6 +24,37 @@ config PROC_HARDWARE
including the model, CPU, MMU, clock speed, BogoMIPS rating,
and memory size.
config NATFEAT
bool "ARAnyM emulator support"
depends on ATARI
help
This option enables support for ARAnyM native features, such as
access to a disk image as /dev/hda.
config NFBLOCK
tristate "NatFeat block device support"
depends on BLOCK && NATFEAT
help
Say Y to include support for the ARAnyM NatFeat block device
which allows direct access to the hard drives without using
the hardware emulation.
config NFCON
tristate "NatFeat console driver"
depends on NATFEAT
help
Say Y to include support for the ARAnyM NatFeat console driver
which allows the console output to be redirected to the stderr
output of ARAnyM.
config NFETH
tristate "NatFeat Ethernet support"
depends on ETHERNET && NATFEAT
help
Say Y to include support for the ARAnyM NatFeat network device
which will emulate a regular ethernet device while presenting an
ethertap device to the host system.
endmenu
menu "Character devices"
arch/m68k/amiga/amiints.c
+126 -166
View File
@@ -1,43 +1,15 @@
/*
* linux/arch/m68k/amiga/amiints.c -- Amiga Linux interrupt handling code
* Amiga Linux interrupt handling code
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
* 11/07/96: rewritten interrupt handling, irq lists are exists now only for
* this sources where it makes sense (VERTB/PORTS/EXTER) and you must
* be careful that dev_id for this sources is unique since this the
* only possibility to distinguish between different handlers for
* free_irq. irq lists also have different irq flags:
* - IRQ_FLG_FAST: handler is inserted at top of list (after other
* fast handlers)
* - IRQ_FLG_SLOW: handler is inserted at bottom of list and before
* they're executed irq level is set to the previous
* one, but handlers don't need to be reentrant, if
* reentrance occurred, slow handlers will be just
* called again.
* The whole interrupt handling for CIAs is moved to cia.c
* /Roman Zippel
*
* 07/08/99: rewamp of the interrupt handling - we now have two types of
* interrupts, normal and fast handlers, fast handlers being
* marked with IRQF_DISABLED and runs with all other interrupts
* disabled. Normal interrupts disable their own source but
* run with all other interrupt sources enabled.
* PORTS and EXTER interrupts are always shared even if the
* drivers do not explicitly mark this when calling
* request_irq which they really should do.
* This is similar to the way interrupts are handled on all
* other architectures and makes a ton of sense besides
* having the advantage of making it easier to share
* drivers.
* /Jes
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/irq.h>
#include <asm/irq.h>
#include <asm/traps.h>
@@ -45,20 +17,128 @@
#include <asm/amigaints.h>
#include <asm/amipcmcia.h>
static void amiga_enable_irq(unsigned int irq);
static void amiga_disable_irq(unsigned int irq);
static irqreturn_t ami_int1(int irq, void *dev_id);
static irqreturn_t ami_int3(int irq, void *dev_id);
static irqreturn_t ami_int4(int irq, void *dev_id);
static irqreturn_t ami_int5(int irq, void *dev_id);
static struct irq_controller amiga_irq_controller = {
/*
* Enable/disable a particular machine specific interrupt source.
* Note that this may affect other interrupts in case of a shared interrupt.
* This function should only be called for a _very_ short time to change some
* internal data, that may not be changed by the interrupt at the same time.
*/
static void amiga_irq_enable(struct irq_data *data)
{
amiga_custom.intena = IF_SETCLR | (1 << (data->irq - IRQ_USER));
}
static void amiga_irq_disable(struct irq_data *data)
{
amiga_custom.intena = 1 << (data->irq - IRQ_USER);
}
static struct irq_chip amiga_irq_chip = {
.name = "amiga",
.lock = __SPIN_LOCK_UNLOCKED(amiga_irq_controller.lock),
.enable = amiga_enable_irq,
.disable = amiga_disable_irq,
.irq_enable = amiga_irq_enable,
.irq_disable = amiga_irq_disable,
};
/*
* The builtin Amiga hardware interrupt handlers.
*/
static void ami_int1(unsigned int irq, struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if serial transmit buffer empty, interrupt */
if (ints & IF_TBE) {
amiga_custom.intreq = IF_TBE;
generic_handle_irq(IRQ_AMIGA_TBE);
}
/* if floppy disk transfer complete, interrupt */
if (ints & IF_DSKBLK) {
amiga_custom.intreq = IF_DSKBLK;
generic_handle_irq(IRQ_AMIGA_DSKBLK);
}
/* if software interrupt set, interrupt */
if (ints & IF_SOFT) {
amiga_custom.intreq = IF_SOFT;
generic_handle_irq(IRQ_AMIGA_SOFT);
}
}
static void ami_int3(unsigned int irq, struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if a blitter interrupt */
if (ints & IF_BLIT) {
amiga_custom.intreq = IF_BLIT;
generic_handle_irq(IRQ_AMIGA_BLIT);
}
/* if a copper interrupt */
if (ints & IF_COPER) {
amiga_custom.intreq = IF_COPER;
generic_handle_irq(IRQ_AMIGA_COPPER);
}
/* if a vertical blank interrupt */
if (ints & IF_VERTB) {
amiga_custom.intreq = IF_VERTB;
generic_handle_irq(IRQ_AMIGA_VERTB);
}
}
static void ami_int4(unsigned int irq, struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if audio 0 interrupt */
if (ints & IF_AUD0) {
amiga_custom.intreq = IF_AUD0;
generic_handle_irq(IRQ_AMIGA_AUD0);
}
/* if audio 1 interrupt */
if (ints & IF_AUD1) {
amiga_custom.intreq = IF_AUD1;
generic_handle_irq(IRQ_AMIGA_AUD1);
}
/* if audio 2 interrupt */
if (ints & IF_AUD2) {
amiga_custom.intreq = IF_AUD2;
generic_handle_irq(IRQ_AMIGA_AUD2);
}
/* if audio 3 interrupt */
if (ints & IF_AUD3) {
amiga_custom.intreq = IF_AUD3;
generic_handle_irq(IRQ_AMIGA_AUD3);
}
}
static void ami_int5(unsigned int irq, struct irq_desc *desc)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if serial receive buffer full interrupt */
if (ints & IF_RBF) {
/* acknowledge of IF_RBF must be done by the serial interrupt */
generic_handle_irq(IRQ_AMIGA_RBF);
}
/* if a disk sync interrupt */
if (ints & IF_DSKSYN) {
amiga_custom.intreq = IF_DSKSYN;
generic_handle_irq(IRQ_AMIGA_DSKSYN);
}
}
/*
* void amiga_init_IRQ(void)
*
@@ -72,16 +152,13 @@ static struct irq_controller amiga_irq_controller = {
void __init amiga_init_IRQ(void)
{
if (request_irq(IRQ_AUTO_1, ami_int1, 0, "int1", NULL))
pr_err("Couldn't register int%d\n", 1);
if (request_irq(IRQ_AUTO_3, ami_int3, 0, "int3", NULL))
pr_err("Couldn't register int%d\n", 3);
if (request_irq(IRQ_AUTO_4, ami_int4, 0, "int4", NULL))
pr_err("Couldn't register int%d\n", 4);
if (request_irq(IRQ_AUTO_5, ami_int5, 0, "int5", NULL))
pr_err("Couldn't register int%d\n", 5);
m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER,
AMI_STD_IRQS);
m68k_setup_irq_controller(&amiga_irq_controller, IRQ_USER, AMI_STD_IRQS);
irq_set_chained_handler(IRQ_AUTO_1, ami_int1);
irq_set_chained_handler(IRQ_AUTO_3, ami_int3);
irq_set_chained_handler(IRQ_AUTO_4, ami_int4);
irq_set_chained_handler(IRQ_AUTO_5, ami_int5);
/* turn off PCMCIA interrupts */
if (AMIGAHW_PRESENT(PCMCIA))
@@ -95,120 +172,3 @@ void __init amiga_init_IRQ(void)
cia_init_IRQ(&ciaa_base);
cia_init_IRQ(&ciab_base);
}
/*
* Enable/disable a particular machine specific interrupt source.
* Note that this may affect other interrupts in case of a shared interrupt.
* This function should only be called for a _very_ short time to change some
* internal data, that may not be changed by the interrupt at the same time.
*/
static void amiga_enable_irq(unsigned int irq)
{
amiga_custom.intena = IF_SETCLR | (1 << (irq - IRQ_USER));
}
static void amiga_disable_irq(unsigned int irq)
{
amiga_custom.intena = 1 << (irq - IRQ_USER);
}
/*
* The builtin Amiga hardware interrupt handlers.
*/
static irqreturn_t ami_int1(int irq, void *dev_id)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if serial transmit buffer empty, interrupt */
if (ints & IF_TBE) {
amiga_custom.intreq = IF_TBE;
m68k_handle_int(IRQ_AMIGA_TBE);
}
/* if floppy disk transfer complete, interrupt */
if (ints & IF_DSKBLK) {
amiga_custom.intreq = IF_DSKBLK;
m68k_handle_int(IRQ_AMIGA_DSKBLK);
}
/* if software interrupt set, interrupt */
if (ints & IF_SOFT) {
amiga_custom.intreq = IF_SOFT;
m68k_handle_int(IRQ_AMIGA_SOFT);
}
return IRQ_HANDLED;
}
static irqreturn_t ami_int3(int irq, void *dev_id)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if a blitter interrupt */
if (ints & IF_BLIT) {
amiga_custom.intreq = IF_BLIT;
m68k_handle_int(IRQ_AMIGA_BLIT);
}
/* if a copper interrupt */
if (ints & IF_COPER) {
amiga_custom.intreq = IF_COPER;
m68k_handle_int(IRQ_AMIGA_COPPER);
}
/* if a vertical blank interrupt */
if (ints & IF_VERTB) {
amiga_custom.intreq = IF_VERTB;
m68k_handle_int(IRQ_AMIGA_VERTB);
}
return IRQ_HANDLED;
}
static irqreturn_t ami_int4(int irq, void *dev_id)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if audio 0 interrupt */
if (ints & IF_AUD0) {
amiga_custom.intreq = IF_AUD0;
m68k_handle_int(IRQ_AMIGA_AUD0);
}
/* if audio 1 interrupt */
if (ints & IF_AUD1) {
amiga_custom.intreq = IF_AUD1;
m68k_handle_int(IRQ_AMIGA_AUD1);
}
/* if audio 2 interrupt */
if (ints & IF_AUD2) {
amiga_custom.intreq = IF_AUD2;
m68k_handle_int(IRQ_AMIGA_AUD2);
}
/* if audio 3 interrupt */
if (ints & IF_AUD3) {
amiga_custom.intreq = IF_AUD3;
m68k_handle_int(IRQ_AMIGA_AUD3);
}
return IRQ_HANDLED;
}
static irqreturn_t ami_int5(int irq, void *dev_id)
{
unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar;
/* if serial receive buffer full interrupt */
if (ints & IF_RBF) {
/* acknowledge of IF_RBF must be done by the serial interrupt */
m68k_handle_int(IRQ_AMIGA_RBF);
}
/* if a disk sync interrupt */
if (ints & IF_DSKSYN) {
amiga_custom.intreq = IF_DSKSYN;
m68k_handle_int(IRQ_AMIGA_DSKSYN);
}
return IRQ_HANDLED;
}
arch/m68k/amiga/cia.c
+21 -18
View File
@@ -93,13 +93,14 @@ static irqreturn_t cia_handler(int irq, void *dev_id)
amiga_custom.intreq = base->int_mask;
for (; ints; mach_irq++, ints >>= 1) {
if (ints & 1)
m68k_handle_int(mach_irq);
generic_handle_irq(mach_irq);
}
return IRQ_HANDLED;
}
static void cia_enable_irq(unsigned int irq)
static void cia_irq_enable(struct irq_data *data)
{
unsigned int irq = data->irq;
unsigned char mask;
if (irq >= IRQ_AMIGA_CIAB) {
@@ -113,19 +114,20 @@ static void cia_enable_irq(unsigned int irq)
}
}
static void cia_disable_irq(unsigned int irq)
static void cia_irq_disable(struct irq_data *data)
{
unsigned int irq = data->irq;
if (irq >= IRQ_AMIGA_CIAB)
cia_able_irq(&ciab_base, 1 << (irq - IRQ_AMIGA_CIAB));
else
cia_able_irq(&ciaa_base, 1 << (irq - IRQ_AMIGA_CIAA));
}
static struct irq_controller cia_irq_controller = {
static struct irq_chip cia_irq_chip = {
.name = "cia",
.lock = __SPIN_LOCK_UNLOCKED(cia_irq_controller.lock),
.enable = cia_enable_irq,
.disable = cia_disable_irq,
.irq_enable = cia_irq_enable,
.irq_disable = cia_irq_disable,
};
/*
@@ -134,9 +136,9 @@ static struct irq_controller cia_irq_controller = {
* into this chain.
*/
static void auto_enable_irq(unsigned int irq)
static void auto_irq_enable(struct irq_data *data)
{
switch (irq) {
switch (data->irq) {
case IRQ_AUTO_2:
amiga_custom.intena = IF_SETCLR | IF_PORTS;
break;
@@ -146,9 +148,9 @@ static void auto_enable_irq(unsigned int irq)
}
}
static void auto_disable_irq(unsigned int irq)
static void auto_irq_disable(struct irq_data *data)
{
switch (irq) {
switch (data->irq) {
case IRQ_AUTO_2:
amiga_custom.intena = IF_PORTS;
break;
@@ -158,24 +160,25 @@ static void auto_disable_irq(unsigned int irq)
}
}
static struct irq_controller auto_irq_controller = {
static struct irq_chip auto_irq_chip = {
.name = "auto",
.lock = __SPIN_LOCK_UNLOCKED(auto_irq_controller.lock),
.enable = auto_enable_irq,
.disable = auto_disable_irq,
.irq_enable = auto_irq_enable,
.irq_disable = auto_irq_disable,
};
void __init cia_init_IRQ(struct ciabase *base)
{
m68k_setup_irq_controller(&cia_irq_controller, base->cia_irq, CIA_IRQS);
m68k_setup_irq_controller(&cia_irq_chip, handle_simple_irq,
base->cia_irq, CIA_IRQS);
/* clear any pending interrupt and turn off all interrupts */
cia_set_irq(base, CIA_ICR_ALL);
cia_able_irq(base, CIA_ICR_ALL);
/* override auto int and install CIA handler */
m68k_setup_irq_controller(&auto_irq_controller, base->handler_irq, 1);
m68k_irq_startup(base->handler_irq);
m68k_setup_irq_controller(&auto_irq_chip, handle_simple_irq,
base->handler_irq, 1);
m68k_irq_startup_irq(base->handler_irq);
if (request_irq(base->handler_irq, cia_handler, IRQF_SHARED,
base->name, base))
pr_err("Couldn't register %s interrupt\n", base->name);
arch/m68k/apollo/dn_ints.c
+19 -16
View File
@@ -1,19 +1,13 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/irq.h>
#include <asm/traps.h>
#include <asm/apollohw.h>
void dn_process_int(unsigned int irq, struct pt_regs *fp)
unsigned int apollo_irq_startup(struct irq_data *data)
{
__m68k_handle_int(irq, fp);
unsigned int irq = data->irq;
*(volatile unsigned char *)(pica)=0x20;
*(volatile unsigned char *)(picb)=0x20;
}
int apollo_irq_startup(unsigned int irq)
{
if (irq < 8)
*(volatile unsigned char *)(pica+1) &= ~(1 << irq);
else
@@ -21,24 +15,33 @@ int apollo_irq_startup(unsigned int irq)
return 0;
}
void apollo_irq_shutdown(unsigned int irq)
void apollo_irq_shutdown(struct irq_data *data)
{
unsigned int irq = data->irq;
if (irq < 8)
*(volatile unsigned char *)(pica+1) |= (1 << irq);
else
*(volatile unsigned char *)(picb+1) |= (1 << (irq - 8));
}
static struct irq_controller apollo_irq_controller = {
void apollo_irq_eoi(struct irq_data *data)
{
*(volatile unsigned char *)(pica) = 0x20;
*(volatile unsigned char *)(picb) = 0x20;
}
static struct irq_chip apollo_irq_chip = {
.name = "apollo",
.lock = __SPIN_LOCK_UNLOCKED(apollo_irq_controller.lock),
.startup = apollo_irq_startup,
.shutdown = apollo_irq_shutdown,
.irq_startup = apollo_irq_startup,
.irq_shutdown = apollo_irq_shutdown,
.irq_eoi = apollo_irq_eoi,
};
void __init dn_init_IRQ(void)
{
m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int);
m68k_setup_irq_controller(&apollo_irq_controller, IRQ_APOLLO, 16);
m68k_setup_user_interrupt(VEC_USER + 96, 16);
m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq,
IRQ_APOLLO, 16);
}
arch/m68k/atari/ataints.c
+26 -248
View File
@@ -60,244 +60,8 @@
* <asm/atariints.h>): Autovector interrupts are 1..7, then follow ST-MFP,
* TT-MFP, SCC, and finally VME interrupts. Vector numbers for the latter can
* be allocated by atari_register_vme_int().
*
* Each interrupt can be of three types:
*
* - SLOW: The handler runs with all interrupts enabled, except the one it
* was called by (to avoid reentering). This should be the usual method.
* But it is currently possible only for MFP ints, since only the MFP
* offers an easy way to mask interrupts.
*
* - FAST: The handler runs with all interrupts disabled. This should be used
* only for really fast handlers, that just do actions immediately
* necessary, and let the rest do a bottom half or task queue.
*
* - PRIORITIZED: The handler can be interrupted by higher-level ints
* (greater IPL, no MFP priorities!). This is the method of choice for ints
* which should be slow, but are not from a MFP.
*
* The feature of more than one handler for one int source is still there, but
* only applicable if all handers are of the same type. To not slow down
* processing of ints with only one handler by the chaining feature, the list
* calling function atari_call_irq_list() is only plugged in at the time the
* second handler is registered.
*
* Implementation notes: For fast-as-possible int handling, there are separate
* entry points for each type (slow/fast/prio). The assembler handler calls
* the irq directly in the usual case, no C wrapper is involved. In case of
* multiple handlers, atari_call_irq_list() is registered as handler and calls
* in turn the real irq's. To ease access from assembler level to the irq
* function pointer and accompanying data, these two are stored in a separate
* array, irq_handler[]. The rest of data (type, name) are put into a second
* array, irq_param, that is accessed from C only. For each slow interrupt (32
* in all) there are separate handler functions, which makes it possible to
* hard-code the MFP register address and value, are necessary to mask the
* int. If there'd be only one generic function, lots of calculations would be
* needed to determine MFP register and int mask from the vector number :-(
*
* Furthermore, slow ints may not lower the IPL below its previous value
* (before the int happened). This is needed so that an int of class PRIO, on
* that this int may be stacked, cannot be reentered. This feature is
* implemented as follows: If the stack frame format is 1 (throwaway), the int
* is not stacked, and the IPL is anded with 0xfbff, resulting in a new level
* 2, which still blocks the HSYNC, but no interrupts of interest. If the
* frame format is 0, the int is nested, and the old IPL value can be found in
* the sr copy in the frame.
*/
#if 0
#define NUM_INT_SOURCES (8 + NUM_ATARI_SOURCES)
typedef void (*asm_irq_handler)(void);
struct irqhandler {
irqreturn_t (*handler)(int, void *, struct pt_regs *);
void *dev_id;
};
struct irqparam {
unsigned long flags;
const char *devname;
};
/*
* Array with irq's and their parameter data. This array is accessed from low
* level assembler code, so an element size of 8 allows usage of index scaling
* addressing mode.
*/
static struct irqhandler irq_handler[NUM_INT_SOURCES];
/*
* This array hold the rest of parameters of int handlers: type
* (slow,fast,prio) and the name of the handler. These values are only
* accessed from C
*/
static struct irqparam irq_param[NUM_INT_SOURCES];
/* check for valid int number (complex, sigh...) */
#define IS_VALID_INTNO(n) \
((n) > 0 && \
/* autovec and ST-MFP ok anyway */ \
(((n) < TTMFP_SOURCE_BASE) || \
/* TT-MFP ok if present */ \
((n) >= TTMFP_SOURCE_BASE && (n) < SCC_SOURCE_BASE && \
ATARIHW_PRESENT(TT_MFP)) || \
/* SCC ok if present and number even */ \
((n) >= SCC_SOURCE_BASE && (n) < VME_SOURCE_BASE && \
!((n) & 1) && ATARIHW_PRESENT(SCC)) || \
/* greater numbers ok if they are registered VME vectors */ \
((n) >= VME_SOURCE_BASE && (n) < VME_SOURCE_BASE + VME_MAX_SOURCES && \
free_vme_vec_bitmap & (1 << ((n) - VME_SOURCE_BASE)))))
/*
* Here start the assembler entry points for interrupts
*/
#define IRQ_NAME(nr) atari_slow_irq_##nr##_handler(void)
#define BUILD_SLOW_IRQ(n) \
asmlinkage void IRQ_NAME(n); \
/* Dummy function to allow asm with operands. */ \
void atari_slow_irq_##n##_dummy (void) { \
__asm__ (__ALIGN_STR "\n" \
"atari_slow_irq_" #n "_handler:\t" \
" addl %6,%5\n" /* preempt_count() += HARDIRQ_OFFSET */ \
SAVE_ALL_INT "\n" \
GET_CURRENT(%%d0) "\n" \
" andb #~(1<<(%c3&7)),%a4:w\n" /* mask this interrupt */ \
/* get old IPL from stack frame */ \
" bfextu %%sp@(%c2){#5,#3},%%d0\n" \
" movew %%sr,%%d1\n" \
" bfins %%d0,%%d1{#21,#3}\n" \
" movew %%d1,%%sr\n" /* set IPL = previous value */ \
" addql #1,%a0\n" \
" lea %a1,%%a0\n" \
" pea %%sp@\n" /* push addr of frame */ \
" movel %%a0@(4),%%sp@-\n" /* push handler data */ \
" pea (%c3+8)\n" /* push int number */ \
" movel %%a0@,%%a0\n" \
" jbsr %%a0@\n" /* call the handler */ \
" addql #8,%%sp\n" \
" addql #4,%%sp\n" \
" orw #0x0600,%%sr\n" \
" andw #0xfeff,%%sr\n" /* set IPL = 6 again */ \
" orb #(1<<(%c3&7)),%a4:w\n" /* now unmask the int again */ \
" jbra ret_from_interrupt\n" \
: : "i" (&kstat_cpu(0).irqs[n+8]), "i" (&irq_handler[n+8]), \
"n" (PT_OFF_SR), "n" (n), \
"i" (n & 8 ? (n & 16 ? &tt_mfp.int_mk_a : &st_mfp.int_mk_a) \
: (n & 16 ? &tt_mfp.int_mk_b : &st_mfp.int_mk_b)), \
"m" (preempt_count()), "di" (HARDIRQ_OFFSET) \
); \
for (;;); /* fake noreturn */ \
}
BUILD_SLOW_IRQ(0);
BUILD_SLOW_IRQ(1);
BUILD_SLOW_IRQ(2);
BUILD_SLOW_IRQ(3);
BUILD_SLOW_IRQ(4);
BUILD_SLOW_IRQ(5);
BUILD_SLOW_IRQ(6);
BUILD_SLOW_IRQ(7);
BUILD_SLOW_IRQ(8);
BUILD_SLOW_IRQ(9);
BUILD_SLOW_IRQ(10);
BUILD_SLOW_IRQ(11);
BUILD_SLOW_IRQ(12);
BUILD_SLOW_IRQ(13);
BUILD_SLOW_IRQ(14);
BUILD_SLOW_IRQ(15);
BUILD_SLOW_IRQ(16);
BUILD_SLOW_IRQ(17);
BUILD_SLOW_IRQ(18);
BUILD_SLOW_IRQ(19);
BUILD_SLOW_IRQ(20);
BUILD_SLOW_IRQ(21);
BUILD_SLOW_IRQ(22);
BUILD_SLOW_IRQ(23);
BUILD_SLOW_IRQ(24);
BUILD_SLOW_IRQ(25);
BUILD_SLOW_IRQ(26);
BUILD_SLOW_IRQ(27);
BUILD_SLOW_IRQ(28);
BUILD_SLOW_IRQ(29);
BUILD_SLOW_IRQ(30);
BUILD_SLOW_IRQ(31);
asm_irq_handler slow_handlers[32] = {
[0] = atari_slow_irq_0_handler,
[1] = atari_slow_irq_1_handler,
[2] = atari_slow_irq_2_handler,
[3] = atari_slow_irq_3_handler,
[4] = atari_slow_irq_4_handler,
[5] = atari_slow_irq_5_handler,
[6] = atari_slow_irq_6_handler,
[7] = atari_slow_irq_7_handler,
[8] = atari_slow_irq_8_handler,
[9] = atari_slow_irq_9_handler,
[10] = atari_slow_irq_10_handler,
[11] = atari_slow_irq_11_handler,
[12] = atari_slow_irq_12_handler,
[13] = atari_slow_irq_13_handler,
[14] = atari_slow_irq_14_handler,
[15] = atari_slow_irq_15_handler,
[16] = atari_slow_irq_16_handler,
[17] = atari_slow_irq_17_handler,
[18] = atari_slow_irq_18_handler,
[19] = atari_slow_irq_19_handler,
[20] = atari_slow_irq_20_handler,
[21] = atari_slow_irq_21_handler,
[22] = atari_slow_irq_22_handler,
[23] = atari_slow_irq_23_handler,
[24] = atari_slow_irq_24_handler,
[25] = atari_slow_irq_25_handler,
[26] = atari_slow_irq_26_handler,
[27] = atari_slow_irq_27_handler,
[28] = atari_slow_irq_28_handler,
[29] = atari_slow_irq_29_handler,
[30] = atari_slow_irq_30_handler,
[31] = atari_slow_irq_31_handler
};
asmlinkage void atari_fast_irq_handler( void );
asmlinkage void atari_prio_irq_handler( void );
/* Dummy function to allow asm with operands. */
void atari_fast_prio_irq_dummy (void) {
__asm__ (__ALIGN_STR "\n"
"atari_fast_irq_handler:\n\t"
"orw #0x700,%%sr\n" /* disable all interrupts */
"atari_prio_irq_handler:\n\t"
"addl %3,%2\n\t" /* preempt_count() += HARDIRQ_OFFSET */
SAVE_ALL_INT "\n\t"
GET_CURRENT(%%d0) "\n\t"
/* get vector number from stack frame and convert to source */
"bfextu %%sp@(%c1){#4,#10},%%d0\n\t"
"subw #(0x40-8),%%d0\n\t"
"jpl 1f\n\t"
"addw #(0x40-8-0x18),%%d0\n"
"1:\tlea %a0,%%a0\n\t"
"addql #1,%%a0@(%%d0:l:4)\n\t"
"lea irq_handler,%%a0\n\t"
"lea %%a0@(%%d0:l:8),%%a0\n\t"
"pea %%sp@\n\t" /* push frame address */
"movel %%a0@(4),%%sp@-\n\t" /* push handler data */
"movel %%d0,%%sp@-\n\t" /* push int number */
"movel %%a0@,%%a0\n\t"
"jsr %%a0@\n\t" /* and call the handler */
"addql #8,%%sp\n\t"
"addql #4,%%sp\n\t"
"jbra ret_from_interrupt"
: : "i" (&kstat_cpu(0).irqs), "n" (PT_OFF_FORMATVEC),
"m" (preempt_count()), "di" (HARDIRQ_OFFSET)
);
for (;;);
}
#endif
/*
* Bitmap for free interrupt vector numbers
* (new vectors starting from 0x70 can be allocated by
@@ -320,31 +84,44 @@ extern void atari_microwire_cmd(int cmd);
extern int atari_SCC_reset_done;
static int atari_startup_irq(unsigned int irq)
static unsigned int atari_irq_startup(struct irq_data *data)
{
m68k_irq_startup(irq);
unsigned int irq = data->irq;
m68k_irq_startup(data);
atari_turnon_irq(irq);
atari_enable_irq(irq);
return 0;
}
static void atari_shutdown_irq(unsigned int irq)
static void atari_irq_shutdown(struct irq_data *data)
{
unsigned int irq = data->irq;
atari_disable_irq(irq);
atari_turnoff_irq(irq);
m68k_irq_shutdown(irq);
m68k_irq_shutdown(data);
if (irq == IRQ_AUTO_4)
vectors[VEC_INT4] = falcon_hblhandler;
}
static struct irq_controller atari_irq_controller = {
static void atari_irq_enable(struct irq_data *data)
{
atari_enable_irq(data->irq);
}
static void atari_irq_disable(struct irq_data *data)
{
atari_disable_irq(data->irq);
}
static struct irq_chip atari_irq_chip = {
.name = "atari",
.lock = __SPIN_LOCK_UNLOCKED(atari_irq_controller.lock),
.startup = atari_startup_irq,
.shutdown = atari_shutdown_irq,
.enable = atari_enable_irq,
.disable = atari_disable_irq,
.irq_startup = atari_irq_startup,
.irq_shutdown = atari_irq_shutdown,
.irq_enable = atari_irq_enable,
.irq_disable = atari_irq_disable,
};
/*
@@ -360,8 +137,9 @@ static struct irq_controller atari_irq_controller = {
void __init atari_init_IRQ(void)
{
m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER, NULL);
m68k_setup_irq_controller(&atari_irq_controller, 1, NUM_ATARI_SOURCES - 1);
m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER);
m68k_setup_irq_controller(&atari_irq_chip, handle_simple_irq, 1,
NUM_ATARI_SOURCES - 1);
/* Initialize the MFP(s) */
arch/m68k/bvme6000/config.c
+1 -1
View File
@@ -86,7 +86,7 @@ static void bvme6000_get_model(char *model)
*/
static void __init bvme6000_init_IRQ(void)
{
m68k_setup_user_interrupt(VEC_USER, 192, NULL);
m68k_setup_user_interrupt(VEC_USER, 192);
}
void __init config_bvme6000(void)
arch/m68k/hp300/time.c
+1 -1
View File
@@ -70,7 +70,7 @@ void __init hp300_sched_init(irq_handler_t vector)
asm volatile(" movpw %0,%1@(5)" : : "d" (INTVAL), "a" (CLOCKBASE));
if (request_irq(IRQ_AUTO_6, hp300_tick, IRQ_FLG_STD, "timer tick", vector))
if (request_irq(IRQ_AUTO_6, hp300_tick, 0, "timer tick", vector))
pr_err("Couldn't register timer interrupt\n");
out_8(CLOCKBASE + CLKCR2, 0x1); /* select CR1 */
arch/m68k/include/asm/hardirq.h
+5
View File
@@ -18,6 +18,11 @@
#ifdef CONFIG_MMU
static inline void ack_bad_irq(unsigned int irq)
{
pr_crit("unexpected IRQ trap at vector %02x\n", irq);
}
/* entry.S is sensitive to the offsets of these fields */
typedef struct {
unsigned int __softirq_pending;
arch/m68k/include/asm/irq.h
+15 -54
View File
@@ -27,11 +27,6 @@
#ifdef CONFIG_MMU
#include <linux/linkage.h>
#include <linux/hardirq.h>
#include <linux/irqreturn.h>
#include <linux/spinlock_types.h>
/*
* Interrupt source definitions
* General interrupt sources are the level 1-7.
@@ -54,10 +49,6 @@
#define IRQ_USER 8
extern unsigned int irq_canonicalize(unsigned int irq);
struct pt_regs;
/*
* various flags for request_irq() - the Amiga now uses the standard
* mechanism like all other architectures - IRQF_DISABLED and
@@ -71,57 +62,27 @@ struct pt_regs;
#define IRQ_FLG_STD (0x8000) /* internally used */
#endif
/*
* This structure is used to chain together the ISRs for a particular
* interrupt source (if it supports chaining).
*/
typedef struct irq_node {
irqreturn_t (*handler)(int, void *);
void *dev_id;
struct irq_node *next;
unsigned long flags;
const char *devname;
} irq_node_t;
struct irq_data;
struct irq_chip;
struct irq_desc;
extern unsigned int m68k_irq_startup(struct irq_data *data);
extern unsigned int m68k_irq_startup_irq(unsigned int irq);
extern void m68k_irq_shutdown(struct irq_data *data);
extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int,
struct pt_regs *));
extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt);
extern void m68k_setup_irq_controller(struct irq_chip *,
void (*handle)(unsigned int irq,
struct irq_desc *desc),
unsigned int irq, unsigned int cnt);
/*
* This structure has only 4 elements for speed reasons
*/
struct irq_handler {
int (*handler)(int, void *);
unsigned long flags;
void *dev_id;
const char *devname;
};
struct irq_controller {
const char *name;
spinlock_t lock;
int (*startup)(unsigned int irq);
void (*shutdown)(unsigned int irq);
void (*enable)(unsigned int irq);
void (*disable)(unsigned int irq);
};
extern int m68k_irq_startup(unsigned int);
extern void m68k_irq_shutdown(unsigned int);
/*
* This function returns a new irq_node_t
*/
extern irq_node_t *new_irq_node(void);
extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *));
extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
void (*handler)(unsigned int, struct pt_regs *));
extern void m68k_setup_irq_controller(struct irq_controller *, unsigned int, unsigned int);
asmlinkage void m68k_handle_int(unsigned int);
asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *);
extern unsigned int irq_canonicalize(unsigned int irq);
#else
#define irq_canonicalize(irq) (irq)
#endif /* CONFIG_MMU */
asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
extern atomic_t irq_err_count;
#endif /* _M68K_IRQ_H_ */
arch/m68k/include/asm/macintosh.h
+2
View File
@@ -12,6 +12,8 @@ extern void mac_reset(void);
extern void mac_poweroff(void);
extern void mac_init_IRQ(void);
extern int mac_irq_pending(unsigned int);
extern void mac_irq_enable(struct irq_data *data);
extern void mac_irq_disable(struct irq_data *data);
/*
* Floppy driver magic hook - probably shouldn't be here
arch/m68k/include/asm/q40ints.h
-3
View File
@@ -24,6 +24,3 @@
#define Q40_IRQ10_MASK (1<<5)
#define Q40_IRQ14_MASK (1<<6)
#define Q40_IRQ15_MASK (1<<7)
extern unsigned long q40_probe_irq_on (void);
extern int q40_probe_irq_off (unsigned long irqs);
arch/m68k/kernel/Makefile
+4 -5
View File
@@ -6,16 +6,15 @@ extra-$(CONFIG_MMU) := head.o
extra-$(CONFIG_SUN3) := sun3-head.o
extra-y += vmlinux.lds
obj-y := entry.o m68k_ksyms.o module.o process.o ptrace.o setup.o signal.o \
sys_m68k.o syscalltable.o time.o traps.o
obj-y := entry.o irq.o m68k_ksyms.o module.o process.o ptrace.o setup.o \
signal.o sys_m68k.o syscalltable.o time.o traps.o
obj-$(CONFIG_MMU) += ints.o devres.o vectors.o
devres-$(CONFIG_MMU) = ../../../kernel/irq/devres.o
obj-$(CONFIG_MMU) += ints.o vectors.o
ifndef CONFIG_MMU_SUN3
obj-y += dma.o
endif
ifndef CONFIG_MMU
obj-y += init_task.o irq.o
obj-y += init_task.o
endif
arch/m68k/kernel/entry_mm.S
+3 -4
View File
@@ -48,7 +48,7 @@
.globl sys_fork, sys_clone, sys_vfork
.globl ret_from_interrupt, bad_interrupt
.globl auto_irqhandler_fixup
.globl user_irqvec_fixup, user_irqhandler_fixup
.globl user_irqvec_fixup
.text
ENTRY(buserr)
@@ -207,7 +207,7 @@ ENTRY(auto_inthandler)
movel %sp,%sp@-
movel %d0,%sp@- | put vector # on stack
auto_irqhandler_fixup = . + 2
jsr __m68k_handle_int | process the IRQ
jsr do_IRQ | process the IRQ
addql #8,%sp | pop parameters off stack
ret_from_interrupt:
@@ -240,8 +240,7 @@ user_irqvec_fixup = . + 2
movel %sp,%sp@-
movel %d0,%sp@- | put vector # on stack
user_irqhandler_fixup = . + 2
jsr __m68k_handle_int | process the IRQ
jsr do_IRQ | process the IRQ
addql #8,%sp | pop parameters off stack
subqb #1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
arch/m68k/kernel/ints.c
+32 -293
View File
@@ -4,25 +4,6 @@
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
* 07/03/96: Timer initialization, and thus mach_sched_init(),
* removed from request_irq() and moved to init_time().
* We should therefore consider renaming our add_isr() and
* remove_isr() to request_irq() and free_irq()
* respectively, so they are compliant with the other
* architectures. /Jes
* 11/07/96: Changed all add_/remove_isr() to request_/free_irq() calls.
* Removed irq list support, if any machine needs an irq server
* it must implement this itself (as it's already done), instead
* only default handler are used with mach_default_handler.
* request_irq got some flags different from other architectures:
* - IRQ_FLG_REPLACE : Replace an existing handler (the default one
* can be replaced without this flag)
* - IRQ_FLG_LOCK : handler can't be replaced
* There are other machine depending flags, see there
* If you want to replace a default handler you should know what
* you're doing, since it might handle different other irq sources
* which must be served /Roman Zippel
*/
#include <linux/module.h>
@@ -47,33 +28,22 @@
#endif
extern u32 auto_irqhandler_fixup[];
extern u32 user_irqhandler_fixup[];
extern u16 user_irqvec_fixup[];
/* table for system interrupt handlers */
static struct irq_node *irq_list[NR_IRQS];
static struct irq_controller *irq_controller[NR_IRQS];
static int irq_depth[NR_IRQS];
static int m68k_first_user_vec;
static struct irq_controller auto_irq_controller = {
static struct irq_chip auto_irq_chip = {
.name = "auto",
.lock = __SPIN_LOCK_UNLOCKED(auto_irq_controller.lock),
.startup = m68k_irq_startup,
.shutdown = m68k_irq_shutdown,
.irq_startup = m68k_irq_startup,
.irq_shutdown = m68k_irq_shutdown,
};
static struct irq_controller user_irq_controller = {
static struct irq_chip user_irq_chip = {
.name = "user",
.lock = __SPIN_LOCK_UNLOCKED(user_irq_controller.lock),
.startup = m68k_irq_startup,
.shutdown = m68k_irq_shutdown,
.irq_startup = m68k_irq_startup,
.irq_shutdown = m68k_irq_shutdown,
};
#define NUM_IRQ_NODES 100
static irq_node_t nodes[NUM_IRQ_NODES];
/*
* void init_IRQ(void)
*
@@ -96,7 +66,7 @@ void __init init_IRQ(void)
}
for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++)
irq_controller[i] = &auto_irq_controller;
irq_set_chip_and_handler(i, &auto_irq_chip, handle_simple_irq);
mach_init_IRQ();
}
@@ -106,7 +76,7 @@ void __init init_IRQ(void)
* @handler: called from auto vector interrupts
*
* setup the handler to be called from auto vector interrupts instead of the
* standard __m68k_handle_int(), it will be called with irq numbers in the range
* standard do_IRQ(), it will be called with irq numbers in the range
* from IRQ_AUTO_1 - IRQ_AUTO_7.
*/
void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *))
@@ -120,217 +90,49 @@ void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_re
* m68k_setup_user_interrupt
* @vec: first user vector interrupt to handle
* @cnt: number of active user vector interrupts
* @handler: called from user vector interrupts
*
* setup user vector interrupts, this includes activating the specified range
* of interrupts, only then these interrupts can be requested (note: this is
* different from auto vector interrupts). An optional handler can be installed
* to be called instead of the default __m68k_handle_int(), it will be called
* with irq numbers starting from IRQ_USER.
* different from auto vector interrupts).
*/
void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
void (*handler)(unsigned int, struct pt_regs *))
void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt)
{
int i;
BUG_ON(IRQ_USER + cnt > NR_IRQS);
m68k_first_user_vec = vec;
for (i = 0; i < cnt; i++)
irq_controller[IRQ_USER + i] = &user_irq_controller;
irq_set_chip(IRQ_USER + i, &user_irq_chip);
*user_irqvec_fixup = vec - IRQ_USER;
if (handler)
*user_irqhandler_fixup = (u32)handler;
flush_icache();
}
/**
* m68k_setup_irq_controller
* @contr: irq controller which controls specified irq
* @chip: irq chip which controls specified irq
* @handle: flow handler which handles specified irq
* @irq: first irq to be managed by the controller
* @cnt: number of irqs to be managed by the controller
*
* Change the controller for the specified range of irq, which will be used to
* manage these irq. auto/user irq already have a default controller, which can
* be changed as well, but the controller probably should use m68k_irq_startup/
* m68k_irq_shutdown.
*/
void m68k_setup_irq_controller(struct irq_controller *contr, unsigned int irq,
void m68k_setup_irq_controller(struct irq_chip *chip,
irq_flow_handler_t handle, unsigned int irq,
unsigned int cnt)
{
int i;
for (i = 0; i < cnt; i++)
irq_controller[irq + i] = contr;
for (i = 0; i < cnt; i++) {
irq_set_chip(irq + i, chip);
if (handle)
irq_set_handler(irq + i, handle);
}
}
irq_node_t *new_irq_node(void)
{
irq_node_t *node;
short i;
for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) {
if (!node->handler) {
memset(node, 0, sizeof(*node));
return node;
}
}
printk ("new_irq_node: out of nodes\n");
return NULL;
}
int setup_irq(unsigned int irq, struct irq_node *node)
{
struct irq_controller *contr;
struct irq_node **prev;
unsigned long flags;
if (irq >= NR_IRQS || !(contr = irq_controller[irq])) {
printk("%s: Incorrect IRQ %d from %s\n",
__func__, irq, node->devname);
return -ENXIO;
}
spin_lock_irqsave(&contr->lock, flags);
prev = irq_list + irq;
if (*prev) {
/* Can't share interrupts unless both agree to */
if (!((*prev)->flags & node->flags & IRQF_SHARED)) {
spin_unlock_irqrestore(&contr->lock, flags);
return -EBUSY;
}
while (*prev)
prev = &(*prev)->next;
}
if (!irq_list[irq]) {
if (contr->startup)
contr->startup(irq);
else
contr->enable(irq);
}
node->next = NULL;
*prev = node;
spin_unlock_irqrestore(&contr->lock, flags);
return 0;
}
int request_irq(unsigned int irq,
irq_handler_t handler,
unsigned long flags, const char *devname, void *dev_id)
{
struct irq_node *node;
int res;
node = new_irq_node();
if (!node)
return -ENOMEM;
node->handler = handler;
node->flags = flags;
node->dev_id = dev_id;
node->devname = devname;
res = setup_irq(irq, node);
if (res)
node->handler = NULL;
return res;
}
EXPORT_SYMBOL(request_irq);
void free_irq(unsigned int irq, void *dev_id)
{
struct irq_controller *contr;
struct irq_node **p, *node;
unsigned long flags;
if (irq >= NR_IRQS || !(contr = irq_controller[irq])) {
printk("%s: Incorrect IRQ %d\n", __func__, irq);
return;
}
spin_lock_irqsave(&contr->lock, flags);
p = irq_list + irq;
while ((node = *p)) {
if (node->dev_id == dev_id)
break;
p = &node->next;
}
if (node) {
*p = node->next;
node->handler = NULL;
} else
printk("%s: Removing probably wrong IRQ %d\n",
__func__, irq);
if (!irq_list[irq]) {
if (contr->shutdown)
contr->shutdown(irq);
else
contr->disable(irq);
}
spin_unlock_irqrestore(&contr->lock, flags);
}
EXPORT_SYMBOL(free_irq);
void enable_irq(unsigned int irq)
{
struct irq_controller *contr;
unsigned long flags;
if (irq >= NR_IRQS || !(contr = irq_controller[irq])) {
printk("%s: Incorrect IRQ %d\n",
__func__, irq);
return;
}
spin_lock_irqsave(&contr->lock, flags);
if (irq_depth[irq]) {
if (!--irq_depth[irq]) {
if (contr->enable)
contr->enable(irq);
}
} else
WARN_ON(1);
spin_unlock_irqrestore(&contr->lock, flags);
}
EXPORT_SYMBOL(enable_irq);
void disable_irq(unsigned int irq)
{
struct irq_controller *contr;
unsigned long flags;
if (irq >= NR_IRQS || !(contr = irq_controller[irq])) {
printk("%s: Incorrect IRQ %d\n",
__func__, irq);
return;
}
spin_lock_irqsave(&contr->lock, flags);
if (!irq_depth[irq]++) {
if (contr->disable)
contr->disable(irq);
}
spin_unlock_irqrestore(&contr->lock, flags);
}
EXPORT_SYMBOL(disable_irq);
void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq")));
EXPORT_SYMBOL(disable_irq_nosync);
int m68k_irq_startup(unsigned int irq)
unsigned int m68k_irq_startup_irq(unsigned int irq)
{
if (irq <= IRQ_AUTO_7)
vectors[VEC_SPUR + irq] = auto_inthandler;
@@ -339,8 +141,15 @@ int m68k_irq_startup(unsigned int irq)
return 0;
}
void m68k_irq_shutdown(unsigned int irq)
unsigned int m68k_irq_startup(struct irq_data *data)
{
return m68k_irq_startup_irq(data->irq);
}
void m68k_irq_shutdown(struct irq_data *data)
{
unsigned int irq = data->irq;
if (irq <= IRQ_AUTO_7)
vectors[VEC_SPUR + irq] = bad_inthandler;
else
@@ -348,33 +157,6 @@ void m68k_irq_shutdown(unsigned int irq)
}
/*
* Do we need these probe functions on the m68k?
*
* ... may be useful with ISA devices
*/
unsigned long probe_irq_on (void)
{
#ifdef CONFIG_Q40
if (MACH_IS_Q40)
return q40_probe_irq_on();
#endif
return 0;
}
EXPORT_SYMBOL(probe_irq_on);
int probe_irq_off (unsigned long irqs)
{
#ifdef CONFIG_Q40
if (MACH_IS_Q40)
return q40_probe_irq_off(irqs);
#endif
return 0;
}
EXPORT_SYMBOL(probe_irq_off);
unsigned int irq_canonicalize(unsigned int irq)
{
#ifdef CONFIG_Q40
@@ -386,52 +168,9 @@ unsigned int irq_canonicalize(unsigned int irq)
EXPORT_SYMBOL(irq_canonicalize);
asmlinkage void m68k_handle_int(unsigned int irq)
{
struct irq_node *node;
kstat_cpu(0).irqs[irq]++;
node = irq_list[irq];
do {
node->handler(irq, node->dev_id);
node = node->next;
} while (node);
}
asmlinkage void __m68k_handle_int(unsigned int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs;
old_regs = set_irq_regs(regs);
m68k_handle_int(irq);
set_irq_regs(old_regs);
}
asmlinkage void handle_badint(struct pt_regs *regs)
{
kstat_cpu(0).irqs[0]++;
printk("unexpected interrupt from %u\n", regs->vector);
atomic_inc(&irq_err_count);
pr_warn("unexpected interrupt from %u\n", regs->vector);
}
int show_interrupts(struct seq_file *p, void *v)
{
struct irq_controller *contr;
struct irq_node *node;
int i = *(loff_t *) v;
/* autovector interrupts */
if (irq_list[i]) {
contr = irq_controller[i];
node = irq_list[i];
seq_printf(p, "%-8s %3u: %10u %s", contr->name, i, kstat_cpu(0).irqs[i], node->devname);
while ((node = node->next))
seq_printf(p, ", %s", node->devname);
seq_puts(p, "\n");
}
return 0;
}
#ifdef CONFIG_PROC_FS
void init_irq_proc(void)
{
/* Insert /proc/irq driver here */
}
#endif
arch/m68k/mac/baboon.c
+9 -12
View File
@@ -11,6 +11,7 @@
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/traps.h>
#include <asm/bootinfo.h>
@@ -20,9 +21,6 @@
/* #define DEBUG_IRQS */
extern void mac_enable_irq(unsigned int);
extern void mac_disable_irq(unsigned int);
int baboon_present;
static volatile struct baboon *baboon;
static unsigned char baboon_disabled;
@@ -53,7 +51,7 @@ void __init baboon_init(void)
* Baboon interrupt handler. This works a lot like a VIA.
*/
static irqreturn_t baboon_irq(int irq, void *dev_id)
static void baboon_irq(unsigned int irq, struct irq_desc *desc)
{
int irq_bit, irq_num;
unsigned char events;
@@ -64,15 +62,16 @@ static irqreturn_t baboon_irq(int irq, void *dev_id)
(uint) baboon->mb_status);
#endif
if (!(events = baboon->mb_ifr & 0x07))
return IRQ_NONE;
events = baboon->mb_ifr & 0x07;
if (!events)
return;
irq_num = IRQ_BABOON_0;
irq_bit = 1;
do {
if (events & irq_bit) {
baboon->mb_ifr &= ~irq_bit;
m68k_handle_int(irq_num);
generic_handle_irq(irq_num);
}
irq_bit <<= 1;
irq_num++;
@@ -82,7 +81,6 @@ static irqreturn_t baboon_irq(int irq, void *dev_id)
/* for now we need to smash all interrupts */
baboon->mb_ifr &= ~events;
#endif
return IRQ_HANDLED;
}
/*
@@ -92,8 +90,7 @@ static irqreturn_t baboon_irq(int irq, void *dev_id)
void __init baboon_register_interrupts(void)
{
baboon_disabled = 0;
if (request_irq(IRQ_NUBUS_C, baboon_irq, 0, "baboon", (void *)baboon))
pr_err("Couldn't register baboon interrupt\n");
irq_set_chained_handler(IRQ_NUBUS_C, baboon_irq);
}
/*
@@ -111,7 +108,7 @@ void baboon_irq_enable(int irq)
baboon_disabled &= ~(1 << irq_idx);
if (!baboon_disabled)
mac_enable_irq(IRQ_NUBUS_C);
mac_irq_enable(irq_get_irq_data(IRQ_NUBUS_C));
}
void baboon_irq_disable(int irq)
@@ -124,7 +121,7 @@ void baboon_irq_disable(int irq)
baboon_disabled |= 1 << irq_idx;
if (baboon_disabled)
mac_disable_irq(IRQ_NUBUS_C);
mac_irq_disable(irq_get_irq_data(IRQ_NUBUS_C));
}
void baboon_irq_clear(int irq)
arch/m68k/mac/iop.c
+4 -6
View File
@@ -305,15 +305,13 @@ void __init iop_register_interrupts(void)
{
if (iop_ism_present) {
if (oss_present) {
if (request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq,
IRQ_FLG_LOCK, "ISM IOP",
(void *) IOP_NUM_ISM))
if (request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq, 0,
"ISM IOP", (void *)IOP_NUM_ISM))
pr_err("Couldn't register ISM IOP interrupt\n");
oss_irq_enable(IRQ_MAC_ADB);
} else {
if (request_irq(IRQ_VIA2_0, iop_ism_irq,
IRQ_FLG_LOCK|IRQ_FLG_FAST, "ISM IOP",
(void *) IOP_NUM_ISM))
if (request_irq(IRQ_VIA2_0, iop_ism_irq, 0, "ISM IOP",
(void *)IOP_NUM_ISM))
pr_err("Couldn't register ISM IOP interrupt\n");
}
if (!iop_alive(iop_base[IOP_NUM_ISM])) {
arch/m68k/mac/macints.c
+11 -13
View File
@@ -190,14 +190,10 @@ irqreturn_t mac_debug_handler(int, void *);
/* #define DEBUG_MACINTS */
void mac_enable_irq(unsigned int irq);
void mac_disable_irq(unsigned int irq);
static struct irq_controller mac_irq_controller = {
static struct irq_chip mac_irq_chip = {
.name = "mac",
.lock = __SPIN_LOCK_UNLOCKED(mac_irq_controller.lock),
.enable = mac_enable_irq,
.disable = mac_disable_irq,
.irq_enable = mac_irq_enable,
.irq_disable = mac_irq_disable,
};
void __init mac_init_IRQ(void)
@@ -205,7 +201,7 @@ void __init mac_init_IRQ(void)
#ifdef DEBUG_MACINTS
printk("mac_init_IRQ(): Setting things up...\n");
#endif
m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER,
m68k_setup_irq_controller(&mac_irq_chip, handle_simple_irq, IRQ_USER,
NUM_MAC_SOURCES - IRQ_USER);
/* Make sure the SONIC interrupt is cleared or things get ugly */
#ifdef SHUTUP_SONIC
@@ -241,16 +237,17 @@ void __init mac_init_IRQ(void)
}
/*
* mac_enable_irq - enable an interrupt source
* mac_disable_irq - disable an interrupt source
* mac_irq_enable - enable an interrupt source
* mac_irq_disable - disable an interrupt source
* mac_clear_irq - clears a pending interrupt
* mac_pending_irq - Returns the pending status of an IRQ (nonzero = pending)
* mac_irq_pending - returns the pending status of an IRQ (nonzero = pending)
*
* These routines are just dispatchers to the VIA/OSS/PSC routines.
*/
void mac_enable_irq(unsigned int irq)
void mac_irq_enable(struct irq_data *data)
{
int irq = data->irq;
int irq_src = IRQ_SRC(irq);
switch(irq_src) {
@@ -283,8 +280,9 @@ void mac_enable_irq(unsigned int irq)
}
}
void mac_disable_irq(unsigned int irq)
void mac_irq_disable(struct irq_data *data)
{
int irq = data->irq;
int irq_src = IRQ_SRC(irq);
switch(irq_src) {
arch/m68k/mac/oss.c
+21 -33
View File
@@ -19,6 +19,7 @@
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/macintosh.h>
@@ -29,10 +30,7 @@
int oss_present;
volatile struct mac_oss *oss;
static irqreturn_t oss_irq(int, void *);
static irqreturn_t oss_nubus_irq(int, void *);
extern irqreturn_t via1_irq(int, void *);
extern void via1_irq(unsigned int irq, struct irq_desc *desc);
/*
* Initialize the OSS
@@ -59,26 +57,6 @@ void __init oss_init(void)
oss->irq_level[OSS_VIA1] = OSS_IRQLEV_VIA1;
}
/*
* Register the OSS and NuBus interrupt dispatchers.
*/
void __init oss_register_interrupts(void)
{
if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
"scsi", (void *) oss))
pr_err("Couldn't register %s interrupt\n", "scsi");
if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
"nubus", (void *) oss))
pr_err("Couldn't register %s interrupt\n", "nubus");
if (request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
"sound", (void *) oss))
pr_err("Couldn't register %s interrupt\n", "sound");
if (request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
"via1", (void *) via1))
pr_err("Couldn't register %s interrupt\n", "via1");
}
/*
* Initialize OSS for Nubus access
*/
@@ -92,17 +70,17 @@ void __init oss_nubus_init(void)
* and SCSI; everything else is routed to its own autovector IRQ.
*/
static irqreturn_t oss_irq(int irq, void *dev_id)
static void oss_irq(unsigned int irq, struct irq_desc *desc)
{
int events;
events = oss->irq_pending & (OSS_IP_SOUND|OSS_IP_SCSI);
if (!events)
return IRQ_NONE;
return;
#ifdef DEBUG_IRQS
if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) {
printk("oss_irq: irq %d events = 0x%04X\n", irq,
printk("oss_irq: irq %u events = 0x%04X\n", irq,
(int) oss->irq_pending);
}
#endif
@@ -113,11 +91,10 @@ static irqreturn_t oss_irq(int irq, void *dev_id)
/* FIXME: call sound handler */
} else if (events & OSS_IP_SCSI) {
oss->irq_pending &= ~OSS_IP_SCSI;
m68k_handle_int(IRQ_MAC_SCSI);
generic_handle_irq(IRQ_MAC_SCSI);
} else {
/* FIXME: error check here? */
}
return IRQ_HANDLED;
}
/*
@@ -126,13 +103,13 @@ static irqreturn_t oss_irq(int irq, void *dev_id)
* Unlike the VIA/RBV this is on its own autovector interrupt level.
*/
static irqreturn_t oss_nubus_irq(int irq, void *dev_id)
static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc)
{
int events, irq_bit, i;
events = oss->irq_pending & OSS_IP_NUBUS;
if (!events)
return IRQ_NONE;
return;
#ifdef DEBUG_NUBUS_INT
if (console_loglevel > 7) {
@@ -148,10 +125,21 @@ static irqreturn_t oss_nubus_irq(int irq, void *dev_id)
irq_bit >>= 1;
if (events & irq_bit) {
oss->irq_pending &= ~irq_bit;
m68k_handle_int(NUBUS_SOURCE_BASE + i);
generic_handle_irq(NUBUS_SOURCE_BASE + i);
}
} while(events & (irq_bit - 1));
return IRQ_HANDLED;
}
/*
* Register the OSS and NuBus interrupt dispatchers.
*/
void __init oss_register_interrupts(void)
{
irq_set_chained_handler(OSS_IRQLEV_SCSI, oss_irq);
irq_set_chained_handler(OSS_IRQLEV_NUBUS, oss_nubus_irq);
irq_set_chained_handler(OSS_IRQLEV_SOUND, oss_irq);
irq_set_chained_handler(OSS_IRQLEV_VIA1, via1_irq);
}
/*

Some files were not shown because too many files have changed in this diff Show More