From 24ed6ddd9cbf084f1a2dfa3ef66287e5277002e1 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 25 Oct 2011 21:14:10 +0200 Subject: [PATCH 01/29] m68k: Revive lost ARAnyM config options commit 0e152d80507b75c00aac60f2ffc586360687cd52 ("m68k: reorganize Kconfig options to improve mmu/non-mmu selections") accidentally dropped the ARAnyM config options. Re-add them to the "Platform devices" section. Signed-off-by: Geert Uytterhoeven Acked-by: Greg Ungerer --- arch/m68k/Kconfig.devices | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices index d214034be6a6..6033f5d4e67e 100644 --- a/arch/m68k/Kconfig.devices +++ b/arch/m68k/Kconfig.devices @@ -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" From 59433a59b073b88cb32efd03af8ac9b13d56f4cf Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 28 Oct 2011 22:37:21 +0200 Subject: [PATCH 02/29] m68k: Revive lost DIO bus config option commit 0e152d80507b75c00aac60f2ffc586360687cd52 ("m68k: reorganize Kconfig options to improve mmu/non-mmu selections") accidentally dropped the DIO bus config option. Re-add it to the "Bus support" section. Signed-off-by: Geert Uytterhoeven --- arch/m68k/Kconfig.bus | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus index 8294f0c1785e..3adb499584fb 100644 --- a/arch/m68k/Kconfig.bus +++ b/arch/m68k/Kconfig.bus @@ -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 From 3ec7215e5d1a714ef65069a1d0999a31e4930bb7 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 25 May 2011 21:40:59 +0200 Subject: [PATCH 03/29] ide-{cd,floppy,tape}: Do not include MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The top of has this comment: * Please do not include this file in generic code. There is currently * no requirement for any architecture to implement anything held * within this file. * * Thanks. --rmk Remove inclusion of , to prevent the following compile error from happening soon: | include/linux/irq.h:132: error: redefinition of ‘struct irq_data’ | include/linux/irq.h:286: error: redefinition of ‘struct irq_chip’ Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner Acked-by: Borislav Petkov Cc: linux-ide@vger.kernel.org --- drivers/ide/ide-cd.c | 1 - drivers/ide/ide-floppy.c | 1 - drivers/ide/ide-tape.c | 1 - 3 files changed, 3 deletions(-) diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 04b09564bfa9..8126824daccb 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -43,7 +43,6 @@ /* For SCSI -> ATAPI command conversion */ #include -#include #include #include #include diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index 61fdf544fbd6..3d42043fec51 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -35,7 +35,6 @@ #include #include -#include #include #include #include diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 7ecb1ade8874..ce8237d36159 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -41,7 +41,6 @@ #include #include -#include #include #include #include From c288bf2533e57174b90b07860c4391bcd1ea269c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 13 Apr 2011 22:31:28 +0200 Subject: [PATCH 04/29] m68k/irq: Rename irq_controller to irq_chip Make it more similar to the genirq version: - Remove lock (unused as we don't do SMP anyway), - Prepend methods with irq_, - Make irq_startup() return unsigned int. Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/amiga/amiints.c | 9 ++-- arch/m68k/amiga/cia.c | 18 ++++---- arch/m68k/apollo/dn_ints.c | 11 +++-- arch/m68k/atari/ataints.c | 15 +++---- arch/m68k/include/asm/irq.h | 15 +++---- arch/m68k/kernel/ints.c | 86 ++++++++++++++++++------------------- arch/m68k/mac/macints.c | 9 ++-- arch/m68k/q40/q40ints.c | 17 ++++---- arch/m68k/sun3/sun3ints.c | 13 +++--- 9 files changed, 91 insertions(+), 102 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index c5b5212cc3f9..320c5d048dc7 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -52,11 +52,10 @@ 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 = { +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_enable_irq, + .irq_disable = amiga_disable_irq, }; /* @@ -81,7 +80,7 @@ void __init amiga_init_IRQ(void) 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_controller, IRQ_USER, AMI_STD_IRQS); + m68k_setup_irq_chip(&amiga_irq_chip, IRQ_USER, AMI_STD_IRQS); /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index ecd0f7ca6f0e..637ef53112b6 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -121,11 +121,10 @@ static void cia_disable_irq(unsigned int irq) 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_enable_irq, + .irq_disable = cia_disable_irq, }; /* @@ -158,23 +157,22 @@ 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_enable_irq, + .irq_disable = auto_disable_irq, }; void __init cia_init_IRQ(struct ciabase *base) { - m68k_setup_irq_controller(&cia_irq_controller, base->cia_irq, CIA_IRQS); + m68k_setup_irq_chip(&cia_irq_chip, 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_setup_irq_chip(&auto_irq_chip, base->handler_irq, 1); m68k_irq_startup(base->handler_irq); if (request_irq(base->handler_irq, cia_handler, IRQF_SHARED, base->name, base)) diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index 5d47f3aa3810..d6e8f33466be 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -12,7 +12,7 @@ void dn_process_int(unsigned int irq, struct pt_regs *fp) *(volatile unsigned char *)(picb)=0x20; } -int apollo_irq_startup(unsigned int irq) +unsigned int apollo_irq_startup(unsigned int irq) { if (irq < 8) *(volatile unsigned char *)(pica+1) &= ~(1 << irq); @@ -29,16 +29,15 @@ void apollo_irq_shutdown(unsigned int irq) *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8)); } -static struct irq_controller apollo_irq_controller = { +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, }; 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_irq_chip(&apollo_irq_chip, IRQ_APOLLO, 16); } diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 26a804e67bce..ac0ebdf6ca72 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -320,7 +320,7 @@ 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_startup_irq(unsigned int irq) { m68k_irq_startup(irq); atari_turnon_irq(irq); @@ -338,13 +338,12 @@ static void atari_shutdown_irq(unsigned int irq) vectors[VEC_INT4] = falcon_hblhandler; } -static struct irq_controller atari_irq_controller = { +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_startup_irq, + .irq_shutdown = atari_shutdown_irq, + .irq_enable = atari_enable_irq, + .irq_disable = atari_disable_irq, }; /* @@ -361,7 +360,7 @@ 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_irq_chip(&atari_irq_chip, 1, NUM_ATARI_SOURCES - 1); /* Initialize the MFP(s) */ diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 69ed0d74d532..d8c6f68b7a78 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -93,16 +93,15 @@ struct irq_handler { const char *devname; }; -struct irq_controller { +struct irq_chip { 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); + unsigned int (*irq_startup)(unsigned int irq); + void (*irq_shutdown)(unsigned int irq); + void (*irq_enable)(unsigned int irq); + void (*irq_disable)(unsigned int irq); }; -extern int m68k_irq_startup(unsigned int); +extern unsigned int m68k_irq_startup(unsigned int); extern void m68k_irq_shutdown(unsigned int); /* @@ -113,7 +112,7 @@ 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); +extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int); asmlinkage void m68k_handle_int(unsigned int); asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *); diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 761ee0440c99..f43ad7b93ab6 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -52,23 +52,21 @@ 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 struct irq_chip *irq_chip[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 @@ -96,7 +94,7 @@ void __init init_IRQ(void) } for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++) - irq_controller[i] = &auto_irq_controller; + irq_chip[i] = &auto_irq_chip; mach_init_IRQ(); } @@ -136,7 +134,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, 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_chip[IRQ_USER + i] = &user_irq_chip; *user_irqvec_fixup = vec - IRQ_USER; if (handler) *user_irqhandler_fixup = (u32)handler; @@ -144,7 +142,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, } /** - * m68k_setup_irq_controller + * m68k_setup_irq_chip * @contr: irq controller which controls specified irq * @irq: first irq to be managed by the controller * @@ -153,13 +151,13 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, * 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_chip(struct irq_chip *contr, unsigned int irq, unsigned int cnt) { int i; for (i = 0; i < cnt; i++) - irq_controller[irq + i] = contr; + irq_chip[irq + i] = contr; } irq_node_t *new_irq_node(void) @@ -180,23 +178,23 @@ irq_node_t *new_irq_node(void) int setup_irq(unsigned int irq, struct irq_node *node) { - struct irq_controller *contr; + struct irq_chip *contr; struct irq_node **prev; unsigned long flags; - if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { printk("%s: Incorrect IRQ %d from %s\n", __func__, irq, node->devname); return -ENXIO; } - spin_lock_irqsave(&contr->lock, flags); + local_irq_save(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); + local_irq_restore(flags); return -EBUSY; } while (*prev) @@ -204,15 +202,15 @@ int setup_irq(unsigned int irq, struct irq_node *node) } if (!irq_list[irq]) { - if (contr->startup) - contr->startup(irq); + if (contr->irq_startup) + contr->irq_startup(irq); else - contr->enable(irq); + contr->irq_enable(irq); } node->next = NULL; *prev = node; - spin_unlock_irqrestore(&contr->lock, flags); + local_irq_restore(flags); return 0; } @@ -244,16 +242,16 @@ EXPORT_SYMBOL(request_irq); void free_irq(unsigned int irq, void *dev_id) { - struct irq_controller *contr; + struct irq_chip *contr; struct irq_node **p, *node; unsigned long flags; - if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { printk("%s: Incorrect IRQ %d\n", __func__, irq); return; } - spin_lock_irqsave(&contr->lock, flags); + local_irq_save(flags); p = irq_list + irq; while ((node = *p)) { @@ -270,58 +268,58 @@ void free_irq(unsigned int irq, void *dev_id) __func__, irq); if (!irq_list[irq]) { - if (contr->shutdown) - contr->shutdown(irq); + if (contr->irq_shutdown) + contr->irq_shutdown(irq); else - contr->disable(irq); + contr->irq_disable(irq); } - spin_unlock_irqrestore(&contr->lock, flags); + local_irq_restore(flags); } EXPORT_SYMBOL(free_irq); void enable_irq(unsigned int irq) { - struct irq_controller *contr; + struct irq_chip *contr; unsigned long flags; - if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { printk("%s: Incorrect IRQ %d\n", __func__, irq); return; } - spin_lock_irqsave(&contr->lock, flags); + local_irq_save(flags); if (irq_depth[irq]) { if (!--irq_depth[irq]) { - if (contr->enable) - contr->enable(irq); + if (contr->irq_enable) + contr->irq_enable(irq); } } else WARN_ON(1); - spin_unlock_irqrestore(&contr->lock, flags); + local_irq_restore(flags); } EXPORT_SYMBOL(enable_irq); void disable_irq(unsigned int irq) { - struct irq_controller *contr; + struct irq_chip *contr; unsigned long flags; - if (irq >= NR_IRQS || !(contr = irq_controller[irq])) { + if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { printk("%s: Incorrect IRQ %d\n", __func__, irq); return; } - spin_lock_irqsave(&contr->lock, flags); + local_irq_save(flags); if (!irq_depth[irq]++) { - if (contr->disable) - contr->disable(irq); + if (contr->irq_disable) + contr->irq_disable(irq); } - spin_unlock_irqrestore(&contr->lock, flags); + local_irq_restore(flags); } EXPORT_SYMBOL(disable_irq); @@ -330,7 +328,7 @@ 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(unsigned int irq) { if (irq <= IRQ_AUTO_7) vectors[VEC_SPUR + irq] = auto_inthandler; @@ -413,13 +411,13 @@ asmlinkage void handle_badint(struct pt_regs *regs) int show_interrupts(struct seq_file *p, void *v) { - struct irq_controller *contr; + struct irq_chip *contr; struct irq_node *node; int i = *(loff_t *) v; /* autovector interrupts */ if (irq_list[i]) { - contr = irq_controller[i]; + contr = irq_chip[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)) diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index f92190c159b4..ffa1b3f7e2b7 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -193,11 +193,10 @@ irqreturn_t mac_debug_handler(int, void *); 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_enable_irq, + .irq_disable = mac_disable_irq, }; void __init mac_init_IRQ(void) @@ -205,7 +204,7 @@ 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_chip(&mac_irq_chip, IRQ_USER, NUM_MAC_SOURCES - IRQ_USER); /* Make sure the SONIC interrupt is cleared or things get ugly */ #ifdef SHUTUP_SONIC diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index 9f0e3d59bf92..fa05a03f8dfe 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -41,14 +41,14 @@ static void q40_disable_irq(unsigned int); unsigned short q40_ablecount[35]; unsigned short q40_state[35]; -static int q40_irq_startup(unsigned int irq) +static unsigned int q40_irq_startup(unsigned int irq) { /* test for ISA ints not implemented by HW */ switch (irq) { case 1: case 2: case 8: case 9: case 11: case 12: case 13: printk("%s: ISA IRQ %d not implemented by HW\n", __func__, irq); - return -ENXIO; + /* FIXME return -ENXIO; */ } return 0; } @@ -57,13 +57,12 @@ static void q40_irq_shutdown(unsigned int irq) { } -static struct irq_controller q40_irq_controller = { +static struct irq_chip q40_irq_chip = { .name = "q40", - .lock = __SPIN_LOCK_UNLOCKED(q40_irq_controller.lock), - .startup = q40_irq_startup, - .shutdown = q40_irq_shutdown, - .enable = q40_enable_irq, - .disable = q40_disable_irq, + .irq_startup = q40_irq_startup, + .irq_shutdown = q40_irq_shutdown, + .irq_enable = q40_enable_irq, + .irq_disable = q40_disable_irq, }; /* @@ -81,7 +80,7 @@ static int disabled; void __init q40_init_IRQ(void) { - m68k_setup_irq_controller(&q40_irq_controller, 1, Q40_IRQ_MAX); + m68k_setup_irq_chip(&q40_irq_chip, 1, Q40_IRQ_MAX); /* setup handler for ISA ints */ m68k_setup_auto_interrupt(q40_irq_handler); diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 6464ad3ae3e6..97fa9edc5a9d 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -86,13 +86,12 @@ static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) __m68k_handle_int(irq, fp); } -static struct irq_controller sun3_irq_controller = { +static struct irq_chip sun3_irq_chip = { .name = "sun3", - .lock = __SPIN_LOCK_UNLOCKED(sun3_irq_controller.lock), - .startup = m68k_irq_startup, - .shutdown = m68k_irq_shutdown, - .enable = sun3_enable_irq, - .disable = sun3_disable_irq, + .irq_startup = m68k_irq_startup, + .irq_shutdown = m68k_irq_shutdown, + .irq_enable = sun3_enable_irq, + .irq_disable = sun3_disable_irq, }; void __init sun3_init_IRQ(void) @@ -100,7 +99,7 @@ void __init sun3_init_IRQ(void) *sun3_intreg = 1; m68k_setup_auto_interrupt(sun3_inthandle); - m68k_setup_irq_controller(&sun3_irq_controller, IRQ_AUTO_1, 7); + m68k_setup_irq_chip(&sun3_irq_chip, IRQ_AUTO_1, 7); m68k_setup_user_interrupt(VEC_USER, 128, NULL); if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL)) From 0dde595be678c06e7de27c98f45403088f1b126a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 17 Apr 2011 21:39:08 +0200 Subject: [PATCH 05/29] m68k/irq: Kill irq_node_t typedef, always use struct irq_node Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/include/asm/irq.h | 8 ++++---- arch/m68k/kernel/ints.c | 6 +++--- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index d8c6f68b7a78..bfc521f35bdf 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -75,13 +75,13 @@ struct pt_regs; * This structure is used to chain together the ISRs for a particular * interrupt source (if it supports chaining). */ -typedef struct irq_node { +struct irq_node { irqreturn_t (*handler)(int, void *); void *dev_id; struct irq_node *next; unsigned long flags; const char *devname; -} irq_node_t; +}; /* * This structure has only 4 elements for speed reasons @@ -105,9 +105,9 @@ extern unsigned int m68k_irq_startup(unsigned int); extern void m68k_irq_shutdown(unsigned int); /* - * This function returns a new irq_node_t + * This function returns a new struct irq_node */ -extern irq_node_t *new_irq_node(void); +extern struct irq_node *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, diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index f43ad7b93ab6..9de8eb4eaefb 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -70,7 +70,7 @@ static struct irq_chip user_irq_chip = { }; #define NUM_IRQ_NODES 100 -static irq_node_t nodes[NUM_IRQ_NODES]; +static struct irq_node nodes[NUM_IRQ_NODES]; /* * void init_IRQ(void) @@ -160,9 +160,9 @@ void m68k_setup_irq_chip(struct irq_chip *contr, unsigned int irq, irq_chip[irq + i] = contr; } -irq_node_t *new_irq_node(void) +struct irq_node *new_irq_node(void) { - irq_node_t *node; + struct irq_node *node; short i; for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) { From 6549d537922da6a6893e9bc1be9c2b89db663719 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 17 Apr 2011 21:59:23 +0200 Subject: [PATCH 06/29] m68k/irq: Rename irq_node to irq_data Make it more similar to the genirq version: - Add an irq field Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/include/asm/irq.h | 9 +++++---- arch/m68k/kernel/ints.c | 21 +++++++++++---------- 2 files changed, 16 insertions(+), 14 deletions(-) diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index bfc521f35bdf..3cb037c36d10 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -75,10 +75,11 @@ struct pt_regs; * This structure is used to chain together the ISRs for a particular * interrupt source (if it supports chaining). */ -struct irq_node { +struct irq_data { + unsigned int irq; irqreturn_t (*handler)(int, void *); void *dev_id; - struct irq_node *next; + struct irq_data *next; unsigned long flags; const char *devname; }; @@ -105,9 +106,9 @@ extern unsigned int m68k_irq_startup(unsigned int); extern void m68k_irq_shutdown(unsigned int); /* - * This function returns a new struct irq_node + * This function returns a new struct irq_data */ -extern struct irq_node *new_irq_node(void); +extern struct irq_data *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, diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 9de8eb4eaefb..88779320d406 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -51,7 +51,7 @@ 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_data *irq_list[NR_IRQS]; static struct irq_chip *irq_chip[NR_IRQS]; static int irq_depth[NR_IRQS]; @@ -70,7 +70,7 @@ static struct irq_chip user_irq_chip = { }; #define NUM_IRQ_NODES 100 -static struct irq_node nodes[NUM_IRQ_NODES]; +static struct irq_data nodes[NUM_IRQ_NODES]; /* * void init_IRQ(void) @@ -160,9 +160,9 @@ void m68k_setup_irq_chip(struct irq_chip *contr, unsigned int irq, irq_chip[irq + i] = contr; } -struct irq_node *new_irq_node(void) +struct irq_data *new_irq_node(void) { - struct irq_node *node; + struct irq_data *node; short i; for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) { @@ -176,10 +176,10 @@ struct irq_node *new_irq_node(void) return NULL; } -int setup_irq(unsigned int irq, struct irq_node *node) +int setup_irq(unsigned int irq, struct irq_data *node) { struct irq_chip *contr; - struct irq_node **prev; + struct irq_data **prev; unsigned long flags; if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { @@ -219,13 +219,14 @@ int request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, const char *devname, void *dev_id) { - struct irq_node *node; + struct irq_data *node; int res; node = new_irq_node(); if (!node) return -ENOMEM; + node->irq = irq; node->handler = handler; node->flags = flags; node->dev_id = dev_id; @@ -243,7 +244,7 @@ EXPORT_SYMBOL(request_irq); void free_irq(unsigned int irq, void *dev_id) { struct irq_chip *contr; - struct irq_node **p, *node; + struct irq_data **p, *node; unsigned long flags; if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { @@ -386,7 +387,7 @@ EXPORT_SYMBOL(irq_canonicalize); asmlinkage void m68k_handle_int(unsigned int irq) { - struct irq_node *node; + struct irq_data *node; kstat_cpu(0).irqs[irq]++; node = irq_list[irq]; do { @@ -412,7 +413,7 @@ asmlinkage void handle_badint(struct pt_regs *regs) int show_interrupts(struct seq_file *p, void *v) { struct irq_chip *contr; - struct irq_node *node; + struct irq_data *node; int i = *(loff_t *) v; /* autovector interrupts */ From e8abf5e73cdb6c034d35ccba1f63a4801cd3dec5 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 17 Apr 2011 22:53:04 +0200 Subject: [PATCH 07/29] m68k/irq: Switch irq_chip methods to "struct irq_data *data" Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/amiga/amiints.c | 16 ++++++++-------- arch/m68k/amiga/cia.c | 25 ++++++++++++++----------- arch/m68k/apollo/dn_ints.c | 8 ++++++-- arch/m68k/atari/ataints.c | 30 ++++++++++++++++++++++-------- arch/m68k/include/asm/irq.h | 13 +++++++------ arch/m68k/kernel/ints.c | 23 +++++++++++++++-------- arch/m68k/mac/macints.c | 14 ++++++++++++-- arch/m68k/q40/q40ints.c | 28 +++++++++++++++++----------- arch/m68k/sun3/sun3ints.c | 14 ++++++++++++-- 9 files changed, 113 insertions(+), 58 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index 320c5d048dc7..09a695babfe9 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -45,8 +45,8 @@ #include #include -static void amiga_enable_irq(unsigned int irq); -static void amiga_disable_irq(unsigned int irq); +static void amiga_irq_enable(struct irq_data *data); +static void amiga_irq_disable(struct irq_data *data); 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); @@ -54,8 +54,8 @@ static irqreturn_t ami_int5(int irq, void *dev_id); static struct irq_chip amiga_irq_chip = { .name = "amiga", - .irq_enable = amiga_enable_irq, - .irq_disable = amiga_disable_irq, + .irq_enable = amiga_irq_enable, + .irq_disable = amiga_irq_disable, }; /* @@ -102,14 +102,14 @@ void __init amiga_init_IRQ(void) * internal data, that may not be changed by the interrupt at the same time. */ -static void amiga_enable_irq(unsigned int irq) +static void amiga_irq_enable(struct irq_data *data) { - amiga_custom.intena = IF_SETCLR | (1 << (irq - IRQ_USER)); + amiga_custom.intena = IF_SETCLR | (1 << (data->irq - IRQ_USER)); } -static void amiga_disable_irq(unsigned int irq) +static void amiga_irq_disable(struct irq_data *data) { - amiga_custom.intena = 1 << (irq - IRQ_USER); + amiga_custom.intena = 1 << (data->irq - IRQ_USER); } /* diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index 637ef53112b6..b04b453718d9 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -98,8 +98,9 @@ static irqreturn_t cia_handler(int irq, void *dev_id) 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) { @@ -113,8 +114,10 @@ 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 @@ -123,8 +126,8 @@ static void cia_disable_irq(unsigned int irq) static struct irq_chip cia_irq_chip = { .name = "cia", - .irq_enable = cia_enable_irq, - .irq_disable = cia_disable_irq, + .irq_enable = cia_irq_enable, + .irq_disable = cia_irq_disable, }; /* @@ -133,9 +136,9 @@ static struct irq_chip cia_irq_chip = { * 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; @@ -145,9 +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; @@ -159,8 +162,8 @@ static void auto_disable_irq(unsigned int irq) static struct irq_chip auto_irq_chip = { .name = "auto", - .irq_enable = auto_enable_irq, - .irq_disable = auto_disable_irq, + .irq_enable = auto_irq_enable, + .irq_disable = auto_irq_disable, }; void __init cia_init_IRQ(struct ciabase *base) @@ -173,7 +176,7 @@ void __init cia_init_IRQ(struct ciabase *base) /* override auto int and install CIA handler */ m68k_setup_irq_chip(&auto_irq_chip, base->handler_irq, 1); - m68k_irq_startup(base->handler_irq); + 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); diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index d6e8f33466be..2bdab498b6c1 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -12,8 +12,10 @@ void dn_process_int(unsigned int irq, struct pt_regs *fp) *(volatile unsigned char *)(picb)=0x20; } -unsigned int apollo_irq_startup(unsigned int irq) +unsigned int apollo_irq_startup(struct irq_data *data) { + unsigned int irq = data->irq; + if (irq < 8) *(volatile unsigned char *)(pica+1) &= ~(1 << irq); else @@ -21,8 +23,10 @@ unsigned 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 diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index ac0ebdf6ca72..7f4e5a9b77c5 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -320,30 +320,44 @@ extern void atari_microwire_cmd(int cmd); extern int atari_SCC_reset_done; -static unsigned 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 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", - .irq_startup = atari_startup_irq, - .irq_shutdown = atari_shutdown_irq, - .irq_enable = atari_enable_irq, - .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, }; /* diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 3cb037c36d10..423f064955f2 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -96,14 +96,15 @@ struct irq_handler { struct irq_chip { const char *name; - unsigned int (*irq_startup)(unsigned int irq); - void (*irq_shutdown)(unsigned int irq); - void (*irq_enable)(unsigned int irq); - void (*irq_disable)(unsigned int irq); + unsigned int (*irq_startup)(struct irq_data *data); + void (*irq_shutdown)(struct irq_data *data); + void (*irq_enable)(struct irq_data *data); + void (*irq_disable)(struct irq_data *data); }; -extern unsigned int m68k_irq_startup(unsigned int); -extern void m68k_irq_shutdown(unsigned int); +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); /* * This function returns a new struct irq_data diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 88779320d406..404d832f5d35 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -203,9 +203,9 @@ int setup_irq(unsigned int irq, struct irq_data *node) if (!irq_list[irq]) { if (contr->irq_startup) - contr->irq_startup(irq); + contr->irq_startup(node); else - contr->irq_enable(irq); + contr->irq_enable(node); } node->next = NULL; *prev = node; @@ -270,9 +270,9 @@ void free_irq(unsigned int irq, void *dev_id) if (!irq_list[irq]) { if (contr->irq_shutdown) - contr->irq_shutdown(irq); + contr->irq_shutdown(node); else - contr->irq_disable(irq); + contr->irq_disable(node); } local_irq_restore(flags); @@ -295,7 +295,7 @@ void enable_irq(unsigned int irq) if (irq_depth[irq]) { if (!--irq_depth[irq]) { if (contr->irq_enable) - contr->irq_enable(irq); + contr->irq_enable(irq_list[irq]); } } else WARN_ON(1); @@ -318,7 +318,7 @@ void disable_irq(unsigned int irq) local_irq_save(flags); if (!irq_depth[irq]++) { if (contr->irq_disable) - contr->irq_disable(irq); + contr->irq_disable(irq_list[irq]); } local_irq_restore(flags); } @@ -329,7 +329,7 @@ void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq"))); EXPORT_SYMBOL(disable_irq_nosync); -unsigned 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; @@ -338,8 +338,15 @@ unsigned 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 diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index ffa1b3f7e2b7..3cee6d29cc5d 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -193,10 +193,20 @@ irqreturn_t mac_debug_handler(int, void *); void mac_enable_irq(unsigned int irq); void mac_disable_irq(unsigned int irq); +static void mac_irq_enable(struct irq_data *data) +{ + mac_enable_irq(data->irq); +} + +static void mac_irq_disable(struct irq_data *data) +{ + mac_disable_irq(data->irq); +} + static struct irq_chip mac_irq_chip = { .name = "mac", - .irq_enable = mac_enable_irq, - .irq_disable = mac_disable_irq, + .irq_enable = mac_irq_enable, + .irq_disable = mac_irq_disable, }; void __init mac_init_IRQ(void) diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index fa05a03f8dfe..cb245f972e1a 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -35,14 +35,16 @@ */ static void q40_irq_handler(unsigned int, struct pt_regs *fp); -static void q40_enable_irq(unsigned int); -static void q40_disable_irq(unsigned int); +static void q40_irq_enable(struct irq_data *data); +static void q40_irq_disable(struct irq_data *data); unsigned short q40_ablecount[35]; unsigned short q40_state[35]; -static unsigned int q40_irq_startup(unsigned int irq) +static unsigned int q40_irq_startup(struct irq_data *data) { + unsigned int irq = data->irq; + /* test for ISA ints not implemented by HW */ switch (irq) { case 1: case 2: case 8: case 9: @@ -53,7 +55,7 @@ static unsigned int q40_irq_startup(unsigned int irq) return 0; } -static void q40_irq_shutdown(unsigned int irq) +static void q40_irq_shutdown(struct irq_data *data) { } @@ -61,8 +63,8 @@ static struct irq_chip q40_irq_chip = { .name = "q40", .irq_startup = q40_irq_startup, .irq_shutdown = q40_irq_shutdown, - .irq_enable = q40_enable_irq, - .irq_disable = q40_disable_irq, + .irq_enable = q40_irq_enable, + .irq_disable = q40_irq_disable, }; /* @@ -85,8 +87,8 @@ void __init q40_init_IRQ(void) /* setup handler for ISA ints */ m68k_setup_auto_interrupt(q40_irq_handler); - m68k_irq_startup(IRQ_AUTO_2); - m68k_irq_startup(IRQ_AUTO_4); + m68k_irq_startup_irq(IRQ_AUTO_2); + m68k_irq_startup_irq(IRQ_AUTO_4); /* now enable some ints.. */ master_outb(1, EXT_ENABLE_REG); /* ISA IRQ 5-15 */ @@ -292,20 +294,24 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp) return; } -void q40_enable_irq(unsigned int irq) +void q40_irq_enable(struct irq_data *data) { + unsigned int irq = data->irq; + if (irq >= 5 && irq <= 15) { mext_disabled--; if (mext_disabled > 0) - printk("q40_enable_irq : nested disable/enable\n"); + printk("q40_irq_enable : nested disable/enable\n"); if (mext_disabled == 0) master_outb(1, EXT_ENABLE_REG); } } -void q40_disable_irq(unsigned int irq) +void q40_irq_disable(struct irq_data *data) { + unsigned int irq = data->irq; + /* disable ISA iqs : only do something if the driver has been * verified to be Q40 "compatible" - right now IDE, NE2K * Any driver should not attempt to sleep across disable_irq !! diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 97fa9edc5a9d..5d45e0065d2e 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -86,12 +86,22 @@ static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) __m68k_handle_int(irq, fp); } +static void sun3_irq_enable(struct irq_data *data) +{ + sun3_enable_irq(data->irq); +}; + +static void sun3_irq_disable(struct irq_data *data) +{ + sun3_disable_irq(data->irq); +}; + static struct irq_chip sun3_irq_chip = { .name = "sun3", .irq_startup = m68k_irq_startup, .irq_shutdown = m68k_irq_shutdown, - .irq_enable = sun3_enable_irq, - .irq_disable = sun3_disable_irq, + .irq_enable = sun3_irq_enable, + .irq_disable = sun3_irq_disable, }; void __init sun3_init_IRQ(void) From 13d6da35813babaa1bc8c6799b2666191911100e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 19 Apr 2011 20:10:53 +0200 Subject: [PATCH 08/29] m68k/irq: Rename setup_irq() to m68k_setup_irq() and make it static It has nothing to do with the standard one in Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/kernel/ints.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 404d832f5d35..e68a3bd5de6e 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -176,7 +176,7 @@ struct irq_data *new_irq_node(void) return NULL; } -int setup_irq(unsigned int irq, struct irq_data *node) +static int m68k_setup_irq(unsigned int irq, struct irq_data *node) { struct irq_chip *contr; struct irq_data **prev; @@ -232,7 +232,7 @@ int request_irq(unsigned int irq, node->dev_id = dev_id; node->devname = devname; - res = setup_irq(irq, node); + res = m68k_setup_irq(irq, node); if (res) node->handler = NULL; From 40a72c8f711bdf8ae3e4f945261ced5432dcac4d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 27 May 2011 22:33:41 +0200 Subject: [PATCH 09/29] m68k/irq: Extract irq_set_chip() Signed-off-by: Geert Uytterhoeven Acked-by: Thomas Gleixner --- arch/m68k/kernel/ints.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index e68a3bd5de6e..4f9868e160bd 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -55,6 +55,12 @@ static struct irq_data *irq_list[NR_IRQS]; static struct irq_chip *irq_chip[NR_IRQS]; static int irq_depth[NR_IRQS]; +static inline int irq_set_chip(unsigned int irq, struct irq_chip *chip) +{ + irq_chip[irq] = chip; + return 0; +} + static int m68k_first_user_vec; static struct irq_chip auto_irq_chip = { @@ -94,7 +100,7 @@ void __init init_IRQ(void) } for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++) - irq_chip[i] = &auto_irq_chip; + irq_set_chip(i, &auto_irq_chip); mach_init_IRQ(); } @@ -134,7 +140,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, BUG_ON(IRQ_USER + cnt > NR_IRQS); m68k_first_user_vec = vec; for (i = 0; i < cnt; i++) - irq_chip[IRQ_USER + i] = &user_irq_chip; + irq_set_chip(IRQ_USER + i, &user_irq_chip); *user_irqvec_fixup = vec - IRQ_USER; if (handler) *user_irqhandler_fixup = (u32)handler; @@ -157,7 +163,7 @@ void m68k_setup_irq_chip(struct irq_chip *contr, unsigned int irq, int i; for (i = 0; i < cnt; i++) - irq_chip[irq + i] = contr; + irq_set_chip(irq + i, contr); } struct irq_data *new_irq_node(void) From edb347256c44366888debb4f9e8477ac700a9026 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 1 Jun 2011 11:15:21 +0200 Subject: [PATCH 10/29] m68k/irq: Add m68k_setup_irq_controller() This is a wrapper around m68k_setup_irq_chip() that discards its dummy second parameter, to ease the future transition to genirq. Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/amiints.c | 3 ++- arch/m68k/amiga/cia.c | 6 ++++-- arch/m68k/apollo/dn_ints.c | 3 ++- arch/m68k/atari/ataints.c | 3 ++- arch/m68k/include/asm/irq.h | 2 ++ arch/m68k/mac/macints.c | 2 +- arch/m68k/q40/q40ints.c | 3 ++- arch/m68k/sun3/sun3ints.c | 3 ++- 8 files changed, 17 insertions(+), 8 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index 09a695babfe9..8af5ea3eea67 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -80,7 +80,8 @@ void __init amiga_init_IRQ(void) if (request_irq(IRQ_AUTO_5, ami_int5, 0, "int5", NULL)) pr_err("Couldn't register int%d\n", 5); - m68k_setup_irq_chip(&amiga_irq_chip, IRQ_USER, AMI_STD_IRQS); + m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER, + AMI_STD_IRQS); /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index b04b453718d9..84663ae824ef 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -168,14 +168,16 @@ static struct irq_chip auto_irq_chip = { void __init cia_init_IRQ(struct ciabase *base) { - m68k_setup_irq_chip(&cia_irq_chip, 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_chip(&auto_irq_chip, base->handler_irq, 1); + 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)) diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index 2bdab498b6c1..bdc44282fdba 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -43,5 +43,6 @@ static struct irq_chip apollo_irq_chip = { void __init dn_init_IRQ(void) { m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int); - m68k_setup_irq_chip(&apollo_irq_chip, IRQ_APOLLO, 16); + m68k_setup_irq_controller(&apollo_irq_chip, handle_simple_irq, + IRQ_APOLLO, 16); } diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 7f4e5a9b77c5..6149ff994641 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -374,7 +374,8 @@ static struct irq_chip atari_irq_chip = { void __init atari_init_IRQ(void) { m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER, NULL); - m68k_setup_irq_chip(&atari_irq_chip, 1, NUM_ATARI_SOURCES - 1); + m68k_setup_irq_controller(&atari_irq_chip, handle_simple_irq, 1, + NUM_ATARI_SOURCES - 1); /* Initialize the MFP(s) */ diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 423f064955f2..d0b7efd1f1e2 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -115,6 +115,8 @@ extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_re extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, void (*handler)(unsigned int, struct pt_regs *)); extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int); +#define m68k_setup_irq_controller(chip, dummy, irq, cnt) \ + m68k_setup_irq_chip((chip), (irq), (cnt)) asmlinkage void m68k_handle_int(unsigned int); asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *); diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index 3cee6d29cc5d..98497d288a9b 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -214,7 +214,7 @@ void __init mac_init_IRQ(void) #ifdef DEBUG_MACINTS printk("mac_init_IRQ(): Setting things up...\n"); #endif - m68k_setup_irq_chip(&mac_irq_chip, 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 diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index cb245f972e1a..a8a5ce8b18fc 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -82,7 +82,8 @@ static int disabled; void __init q40_init_IRQ(void) { - m68k_setup_irq_chip(&q40_irq_chip, 1, Q40_IRQ_MAX); + m68k_setup_irq_controller(&q40_irq_chip, handle_simple_irq, 1, + Q40_IRQ_MAX); /* setup handler for ISA ints */ m68k_setup_auto_interrupt(q40_irq_handler); diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 5d45e0065d2e..20461278e535 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -109,7 +109,8 @@ void __init sun3_init_IRQ(void) *sun3_intreg = 1; m68k_setup_auto_interrupt(sun3_inthandle); - m68k_setup_irq_chip(&sun3_irq_chip, IRQ_AUTO_1, 7); + m68k_setup_irq_controller(&sun3_irq_chip, handle_simple_irq, + IRQ_AUTO_1, 7); m68k_setup_user_interrupt(VEC_USER, 128, NULL); if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL)) From 1425df87c25b15400c9f26d57821bcfe01286b2a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 1 Jul 2011 20:39:19 +0200 Subject: [PATCH 11/29] m68k/irq: Rename {,__}m68k_handle_int() - Rename m68k_handle_int() to generic_handle_irq(), and drop the unneeded asmlinkage, - Rename __m68k_handle_int() to do_IRQ(). Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/amiints.c | 24 ++++++++++++------------ arch/m68k/amiga/cia.c | 2 +- arch/m68k/apollo/dn_ints.c | 2 +- arch/m68k/include/asm/irq.h | 4 ++-- arch/m68k/kernel/entry_mm.S | 4 ++-- arch/m68k/kernel/ints.c | 10 +++++----- arch/m68k/mac/baboon.c | 2 +- arch/m68k/mac/oss.c | 4 ++-- arch/m68k/mac/psc.c | 2 +- arch/m68k/mac/via.c | 6 +++--- arch/m68k/q40/q40ints.c | 8 ++++---- arch/m68k/sun3/sun3ints.c | 2 +- 12 files changed, 35 insertions(+), 35 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index 8af5ea3eea67..0daa7fce9df1 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -124,19 +124,19 @@ static irqreturn_t ami_int1(int irq, void *dev_id) /* if serial transmit buffer empty, interrupt */ if (ints & IF_TBE) { amiga_custom.intreq = IF_TBE; - m68k_handle_int(IRQ_AMIGA_TBE); + generic_handle_irq(IRQ_AMIGA_TBE); } /* if floppy disk transfer complete, interrupt */ if (ints & IF_DSKBLK) { amiga_custom.intreq = IF_DSKBLK; - m68k_handle_int(IRQ_AMIGA_DSKBLK); + generic_handle_irq(IRQ_AMIGA_DSKBLK); } /* if software interrupt set, interrupt */ if (ints & IF_SOFT) { amiga_custom.intreq = IF_SOFT; - m68k_handle_int(IRQ_AMIGA_SOFT); + generic_handle_irq(IRQ_AMIGA_SOFT); } return IRQ_HANDLED; } @@ -148,19 +148,19 @@ static irqreturn_t ami_int3(int irq, void *dev_id) /* if a blitter interrupt */ if (ints & IF_BLIT) { amiga_custom.intreq = IF_BLIT; - m68k_handle_int(IRQ_AMIGA_BLIT); + generic_handle_irq(IRQ_AMIGA_BLIT); } /* if a copper interrupt */ if (ints & IF_COPER) { amiga_custom.intreq = IF_COPER; - m68k_handle_int(IRQ_AMIGA_COPPER); + generic_handle_irq(IRQ_AMIGA_COPPER); } /* if a vertical blank interrupt */ if (ints & IF_VERTB) { amiga_custom.intreq = IF_VERTB; - m68k_handle_int(IRQ_AMIGA_VERTB); + generic_handle_irq(IRQ_AMIGA_VERTB); } return IRQ_HANDLED; } @@ -172,25 +172,25 @@ static irqreturn_t ami_int4(int irq, void *dev_id) /* if audio 0 interrupt */ if (ints & IF_AUD0) { amiga_custom.intreq = IF_AUD0; - m68k_handle_int(IRQ_AMIGA_AUD0); + generic_handle_irq(IRQ_AMIGA_AUD0); } /* if audio 1 interrupt */ if (ints & IF_AUD1) { amiga_custom.intreq = IF_AUD1; - m68k_handle_int(IRQ_AMIGA_AUD1); + generic_handle_irq(IRQ_AMIGA_AUD1); } /* if audio 2 interrupt */ if (ints & IF_AUD2) { amiga_custom.intreq = IF_AUD2; - m68k_handle_int(IRQ_AMIGA_AUD2); + generic_handle_irq(IRQ_AMIGA_AUD2); } /* if audio 3 interrupt */ if (ints & IF_AUD3) { amiga_custom.intreq = IF_AUD3; - m68k_handle_int(IRQ_AMIGA_AUD3); + generic_handle_irq(IRQ_AMIGA_AUD3); } return IRQ_HANDLED; } @@ -202,13 +202,13 @@ static irqreturn_t ami_int5(int irq, void *dev_id) /* 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); + generic_handle_irq(IRQ_AMIGA_RBF); } /* if a disk sync interrupt */ if (ints & IF_DSKSYN) { amiga_custom.intreq = IF_DSKSYN; - m68k_handle_int(IRQ_AMIGA_DSKSYN); + generic_handle_irq(IRQ_AMIGA_DSKSYN); } return IRQ_HANDLED; } diff --git a/arch/m68k/amiga/cia.c b/arch/m68k/amiga/cia.c index 84663ae824ef..18c0e29976e3 100644 --- a/arch/m68k/amiga/cia.c +++ b/arch/m68k/amiga/cia.c @@ -93,7 +93,7 @@ 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; } diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index bdc44282fdba..4b764312aed0 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -6,7 +6,7 @@ void dn_process_int(unsigned int irq, struct pt_regs *fp) { - __m68k_handle_int(irq, fp); + do_IRQ(irq, fp); *(volatile unsigned char *)(pica)=0x20; *(volatile unsigned char *)(picb)=0x20; diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index d0b7efd1f1e2..9a2bae8ef5b7 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -118,8 +118,8 @@ extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int); #define m68k_setup_irq_controller(chip, dummy, irq, cnt) \ m68k_setup_irq_chip((chip), (irq), (cnt)) -asmlinkage void m68k_handle_int(unsigned int); -asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *); +extern void generic_handle_irq(unsigned int); +asmlinkage void do_IRQ(int irq, struct pt_regs *regs); #else #define irq_canonicalize(irq) (irq) diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S index bd0ec05263b2..f5927d0927b4 100644 --- a/arch/m68k/kernel/entry_mm.S +++ b/arch/m68k/kernel/entry_mm.S @@ -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: @@ -241,7 +241,7 @@ 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) diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 4f9868e160bd..15dbbe297334 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -110,7 +110,7 @@ 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 *)) @@ -129,7 +129,7 @@ void __init m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_re * 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 + * to be called instead of the default do_IRQ(), it will be called * with irq numbers starting from IRQ_USER. */ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, @@ -398,7 +398,7 @@ unsigned int irq_canonicalize(unsigned int irq) EXPORT_SYMBOL(irq_canonicalize); -asmlinkage void m68k_handle_int(unsigned int irq) +void generic_handle_irq(unsigned int irq) { struct irq_data *node; kstat_cpu(0).irqs[irq]++; @@ -409,11 +409,11 @@ asmlinkage void m68k_handle_int(unsigned int irq) } while (node); } -asmlinkage void __m68k_handle_int(unsigned int irq, struct pt_regs *regs) +asmlinkage void do_IRQ(int irq, struct pt_regs *regs) { struct pt_regs *old_regs; old_regs = set_irq_regs(regs); - m68k_handle_int(irq); + generic_handle_irq(irq); set_irq_regs(old_regs); } diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index 2a96bebd8969..f264791b8694 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -72,7 +72,7 @@ static irqreturn_t baboon_irq(int irq, void *dev_id) 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++; diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index a9c0f5ab4cc0..ad512419affc 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -113,7 +113,7 @@ 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? */ } @@ -148,7 +148,7 @@ 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; diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index a4c3eb60706e..26c2b6595808 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -152,7 +152,7 @@ irqreturn_t psc_irq(int irq, void *dev_id) do { if (events & irq_bit) { psc_write_byte(pIFR, irq_bit); - m68k_handle_int(irq_num); + generic_handle_irq(irq_num); } irq_num++; irq_bit <<= 1; diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index e71166daec6a..067857046137 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -460,7 +460,7 @@ irqreturn_t via1_irq(int irq, void *dev_id) do { if (events & irq_bit) { via1[vIFR] = irq_bit; - m68k_handle_int(irq_num); + generic_handle_irq(irq_num); } ++irq_num; irq_bit <<= 1; @@ -482,7 +482,7 @@ irqreturn_t via2_irq(int irq, void *dev_id) do { if (events & irq_bit) { via2[gIFR] = irq_bit | rbv_clear; - m68k_handle_int(irq_num); + generic_handle_irq(irq_num); } ++irq_num; irq_bit <<= 1; @@ -514,7 +514,7 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id) do { if (events & slot_bit) { events &= ~slot_bit; - m68k_handle_int(slot_irq); + generic_handle_irq(slot_irq); } --slot_irq; slot_bit >>= 1; diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index a8a5ce8b18fc..afe600c03659 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -220,11 +220,11 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp) switch (irq) { case 4: case 6: - __m68k_handle_int(Q40_IRQ_SAMPLE, fp); + do_IRQ(Q40_IRQ_SAMPLE, fp); return; } if (mir & Q40_IRQ_FRAME_MASK) { - __m68k_handle_int(Q40_IRQ_FRAME, fp); + do_IRQ(Q40_IRQ_FRAME, fp); master_outb(-1, FRAME_CLEAR_REG); } if ((mir & Q40_IRQ_SER_MASK) || (mir & Q40_IRQ_EXT_MASK)) { @@ -259,7 +259,7 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp) goto iirq; } q40_state[irq] |= IRQ_INPROGRESS; - __m68k_handle_int(irq, fp); + do_IRQ(irq, fp); q40_state[irq] &= ~IRQ_INPROGRESS; /* naively enable everything, if that fails than */ @@ -290,7 +290,7 @@ static void q40_irq_handler(unsigned int irq, struct pt_regs *fp) mir = master_inb(IIRQ_REG); /* should test whether keyboard irq is really enabled, doing it in defhand */ if (mir & Q40_IRQ_KEYB_MASK) - __m68k_handle_int(Q40_IRQ_KEYBOARD, fp); + do_IRQ(Q40_IRQ_KEYBOARD, fp); return; } diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 20461278e535..20ffee7dc319 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -83,7 +83,7 @@ static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) { *sun3_intreg &= ~(1 << irq); - __m68k_handle_int(irq, fp); + do_IRQ(irq, fp); } static void sun3_irq_enable(struct irq_data *data) From 5a2394534b160ce18f9a705cf9de40e77648f8a2 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 13 Jul 2011 22:33:13 +0200 Subject: [PATCH 12/29] m68k/irq: Remove obsolete IRQ_FLG_* users The m68k core irq code stopped honoring these flags during the irq restructuring in 2006. Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/amiints.c | 29 ----------------------------- arch/m68k/hp300/time.c | 2 +- arch/m68k/kernel/ints.c | 19 ------------------- arch/m68k/mac/iop.c | 10 ++++------ arch/m68k/mac/oss.c | 13 +++++-------- arch/m68k/mac/via.c | 22 ++++++++-------------- arch/m68k/mvme147/config.c | 3 +-- drivers/macintosh/via-macii.c | 2 +- drivers/macintosh/via-maciisi.c | 4 ++-- 9 files changed, 22 insertions(+), 82 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index 0daa7fce9df1..e5f3033499e7 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -4,35 +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. - * - * 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 diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c index f6312c7d8727..c87fe69b0728 100644 --- a/arch/m68k/hp300/time.c +++ b/arch/m68k/hp300/time.c @@ -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 */ diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index 15dbbe297334..f6a469865125 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -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 diff --git a/arch/m68k/mac/iop.c b/arch/m68k/mac/iop.c index 1ad4e9d80eba..a5462cc0bfd6 100644 --- a/arch/m68k/mac/iop.c +++ b/arch/m68k/mac/iop.c @@ -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])) { diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index ad512419affc..1eb60f071007 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -65,17 +65,14 @@ void __init oss_init(void) void __init oss_register_interrupts(void) { - if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK, - "scsi", (void *) oss)) + if (request_irq(OSS_IRQLEV_SCSI, oss_irq, 0, "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)) + if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, 0, "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)) + if (request_irq(OSS_IRQLEV_SOUND, oss_irq, 0, "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)) + if (request_irq(OSS_IRQLEV_VIA1, via1_irq, 0, "via1", (void *)via1)) pr_err("Couldn't register %s interrupt\n", "via1"); } diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index 067857046137..af9ed33bec14 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -281,7 +281,7 @@ void __init via_init_clock(irq_handler_t func) via1[vT1CL] = MAC_CLOCK_LOW; via1[vT1CH] = MAC_CLOCK_HIGH; - if (request_irq(IRQ_MAC_TIMER_1, func, IRQ_FLG_LOCK, "timer", func)) + if (request_irq(IRQ_MAC_TIMER_1, func, 0, "timer", func)) pr_err("Couldn't register %s interrupt\n", "timer"); } @@ -292,25 +292,19 @@ void __init via_init_clock(irq_handler_t func) void __init via_register_interrupts(void) { if (via_alt_mapping) { - if (request_irq(IRQ_AUTO_1, via1_irq, - IRQ_FLG_LOCK|IRQ_FLG_FAST, "software", - (void *) via1)) + if (request_irq(IRQ_AUTO_1, via1_irq, 0, "software", + (void *)via1)) pr_err("Couldn't register %s interrupt\n", "software"); - if (request_irq(IRQ_AUTO_6, via1_irq, - IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1", - (void *) via1)) + if (request_irq(IRQ_AUTO_6, via1_irq, 0, "via1", (void *)via1)) pr_err("Couldn't register %s interrupt\n", "via1"); } else { - if (request_irq(IRQ_AUTO_1, via1_irq, - IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1", - (void *) via1)) + if (request_irq(IRQ_AUTO_1, via1_irq, 0, "via1", (void *)via1)) pr_err("Couldn't register %s interrupt\n", "via1"); } - if (request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST, - "via2", (void *) via2)) + if (request_irq(IRQ_AUTO_2, via2_irq, 0, "via2", (void *)via2)) pr_err("Couldn't register %s interrupt\n", "via2"); - if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, - IRQ_FLG_LOCK|IRQ_FLG_FAST, "nubus", (void *) via2)) + if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 0, "nubus", + (void *)via2)) pr_err("Couldn't register %s interrupt\n", "nubus"); } diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index 6cb9c3a9b6c9..01f2adf3f19f 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -114,8 +114,7 @@ static irqreturn_t mvme147_timer_int (int irq, void *dev_id) void mvme147_sched_init (irq_handler_t timer_routine) { tick_handler = timer_routine; - if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, IRQ_FLG_REPLACE, - "timer 1", NULL)) + if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, 0, "timer 1", NULL)) pr_err("Couldn't register timer interrupt\n"); /* Init the clock with a value */ diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c index 817f37a875c9..c9570fcf1cce 100644 --- a/drivers/macintosh/via-macii.c +++ b/drivers/macintosh/via-macii.c @@ -159,7 +159,7 @@ int macii_init(void) err = macii_init_via(); if (err) goto out; - err = request_irq(IRQ_MAC_ADB, macii_interrupt, IRQ_FLG_LOCK, "ADB", + err = request_irq(IRQ_MAC_ADB, macii_interrupt, 0, "ADB", macii_interrupt); if (err) goto out; diff --git a/drivers/macintosh/via-maciisi.c b/drivers/macintosh/via-maciisi.c index 9ab5b0c34f0d..34d02a91b29f 100644 --- a/drivers/macintosh/via-maciisi.c +++ b/drivers/macintosh/via-maciisi.c @@ -122,8 +122,8 @@ maciisi_init(void) return err; } - if (request_irq(IRQ_MAC_ADB, maciisi_interrupt, IRQ_FLG_LOCK | IRQ_FLG_FAST, - "ADB", maciisi_interrupt)) { + if (request_irq(IRQ_MAC_ADB, maciisi_interrupt, 0, "ADB", + maciisi_interrupt)) { printk(KERN_ERR "maciisi_init: can't get irq %d\n", IRQ_MAC_ADB); return -EAGAIN; } From 4936f63cb790e265eb30a1e1630bb90bd6af0e7a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 21 Apr 2011 22:50:52 +0200 Subject: [PATCH 13/29] m68k/irq: Add genirq support Disabled on all platforms for now Signed-off-by: Geert Uytterhoeven [v1] Acked-by: Thomas Gleixner --- arch/m68k/Kconfig | 17 +++++++++++ arch/m68k/include/asm/hardirq.h | 5 ++++ arch/m68k/include/asm/irq.h | 41 ++++++++++++++++++++------ arch/m68k/kernel/Makefile | 9 ++++-- arch/m68k/kernel/ints.c | 52 ++++++++++++++++++++++++++++++++- 5 files changed, 112 insertions(+), 12 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 6c28582fb98f..a7597e119ab0 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -84,6 +84,23 @@ config MMU_SUN3 bool depends on MMU && !MMU_MOTOROLA +config USE_GENERIC_HARDIRQS + bool "Use genirq" + depends on MMU + depends on !AMIGA + depends on !ATARI + depends on !MAC + depends on !APOLLO + depends on !MVME147 + depends on !MVME16x + depends on !BVME6000 + depends on !HP300 + depends on !SUN3X + depends on !Q40 + depends on !SUN3 + select HAVE_GENERIC_HARDIRQS + select GENERIC_IRQ_SHOW + menu "Platform setup" source arch/m68k/Kconfig.cpu diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h index 870e5347155b..db30ed276878 100644 --- a/arch/m68k/include/asm/hardirq.h +++ b/arch/m68k/include/asm/hardirq.h @@ -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; diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 9a2bae8ef5b7..518e61f2fccb 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -27,11 +27,6 @@ #ifdef CONFIG_MMU -#include -#include -#include -#include - /* * 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 @@ -71,6 +62,15 @@ struct pt_regs; #define IRQ_FLG_STD (0x8000) /* internally used */ #endif +#ifndef CONFIG_GENERIC_HARDIRQS + +#include +#include +#include +#include + +struct pt_regs; + /* * This structure is used to chain together the ISRs for a particular * interrupt source (if it supports chaining). @@ -121,10 +121,33 @@ extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int); extern void generic_handle_irq(unsigned int); asmlinkage void do_IRQ(int irq, struct pt_regs *regs); +#else /* CONFIG_GENERIC_HARDIRQS */ + +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, + void (*handler)(unsigned int, + struct pt_regs *)); +extern void m68k_setup_irq_controller(struct irq_chip *, + void (*handle)(unsigned int irq, + struct irq_desc *desc), + unsigned int irq, unsigned int cnt); + +#endif /* CONFIG_GENERIC_HARDIRQS */ + +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_ */ diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index e7f0f2e5ad44..141425785c4e 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -9,13 +9,18 @@ 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-$(CONFIG_MMU) += ints.o devres.o vectors.o +obj-$(CONFIG_MMU) += ints.o vectors.o devres-$(CONFIG_MMU) = ../../../kernel/irq/devres.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 +ifdef CONFIG_GENERIC_HARDIRQS +obj-y += irq.o +else +obj-y += devres.o endif diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index f6a469865125..cea439f9819b 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -31,6 +31,7 @@ extern u32 auto_irqhandler_fixup[]; extern u32 user_irqhandler_fixup[]; extern u16 user_irqvec_fixup[]; +#ifndef CONFIG_GENERIC_HARDIRQS /* table for system interrupt handlers */ static struct irq_data *irq_list[NR_IRQS]; static struct irq_chip *irq_chip[NR_IRQS]; @@ -41,6 +42,8 @@ static inline int irq_set_chip(unsigned int irq, struct irq_chip *chip) irq_chip[irq] = chip; return 0; } +#define irq_set_chip_and_handler(irq, chip, dummy) irq_set_chip(irq, chip) +#endif /* !CONFIG_GENERIC_HARDIRQS */ static int m68k_first_user_vec; @@ -56,8 +59,10 @@ static struct irq_chip user_irq_chip = { .irq_shutdown = m68k_irq_shutdown, }; +#ifndef CONFIG_GENERIC_HARDIRQS #define NUM_IRQ_NODES 100 static struct irq_data nodes[NUM_IRQ_NODES]; +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* * void init_IRQ(void) @@ -81,7 +86,7 @@ void __init init_IRQ(void) } for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++) - irq_set_chip(i, &auto_irq_chip); + irq_set_chip_and_handler(i, &auto_irq_chip, handle_simple_irq); mach_init_IRQ(); } @@ -128,6 +133,35 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, flush_icache(); } +#ifdef CONFIG_GENERIC_HARDIRQS + +/** + * m68k_setup_irq_controller + * @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_chip *chip, + irq_flow_handler_t handle, unsigned int irq, + unsigned int cnt) +{ + int i; + + for (i = 0; i < cnt; i++) { + irq_set_chip(irq + i, chip); + if (handle) + irq_set_handler(irq + i, handle); + } +} + +#else /* !CONFIG_GENERIC_HARDIRQS */ + /** * m68k_setup_irq_chip * @contr: irq controller which controls specified irq @@ -316,6 +350,8 @@ void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq"))); EXPORT_SYMBOL(disable_irq_nosync); +#endif /* !CONFIG_GENERIC_HARDIRQS */ + unsigned int m68k_irq_startup_irq(unsigned int irq) { if (irq <= IRQ_AUTO_7) @@ -341,6 +377,8 @@ void m68k_irq_shutdown(struct irq_data *data) } +#ifndef CONFIG_GENERIC_HARDIRQS + /* * Do we need these probe functions on the m68k? * @@ -367,6 +405,7 @@ int probe_irq_off (unsigned long irqs) } EXPORT_SYMBOL(probe_irq_off); +#endif /* CONFIG_GENERIC_HARDIRQS */ unsigned int irq_canonicalize(unsigned int irq) { @@ -379,6 +418,7 @@ unsigned int irq_canonicalize(unsigned int irq) EXPORT_SYMBOL(irq_canonicalize); +#ifndef CONFIG_GENERIC_HARDIRQS void generic_handle_irq(unsigned int irq) { struct irq_data *node; @@ -428,3 +468,13 @@ void init_irq_proc(void) /* Insert /proc/irq driver here */ } #endif + +#else /* CONFIG_GENERIC_HARDIRQS */ + +asmlinkage void handle_badint(struct pt_regs *regs) +{ + atomic_inc(&irq_err_count); + pr_warn("unexpected interrupt from %u\n", regs->vector); +} + +#endif /* CONFIG_GENERIC_HARDIRQS */ From e59629ddc6eddbd00e81b4afb814583cfcc4706d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 29 Apr 2011 23:35:21 +0200 Subject: [PATCH 14/29] m68k/atari: Convert Atari to genirq Signed-off-by: Geert Uytterhoeven [v1] Acked-by: Thomas Gleixner --- arch/m68k/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index a7597e119ab0..9d60f4004076 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -88,7 +88,6 @@ config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU depends on !AMIGA - depends on !ATARI depends on !MAC depends on !APOLLO depends on !MVME147 From 34971bad3a1511db7b76eeb2337819967a135075 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 18 Aug 2011 19:36:30 +0200 Subject: [PATCH 15/29] m68k/atari: Remove code and comments about different irq types This code was obsoleted during the irq restructuring in 2006. Signed-off-by: Geert Uytterhoeven --- arch/m68k/atari/ataints.c | 236 -------------------------------------- 1 file changed, 236 deletions(-) diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index 6149ff994641..af544557dd1d 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -60,244 +60,8 @@ * ): 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 From 92b1bd5f1aa88ce4760c02814bfcbb58ad521984 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 31 May 2011 11:11:01 +0200 Subject: [PATCH 16/29] m68k/amiga: Refactor amiints.c - Remove filename in comments, - Reorder functions so we no longer need forward declarations. Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/amiints.c | 98 +++++++++++++++++++-------------------- 1 file changed, 47 insertions(+), 51 deletions(-) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index e5f3033499e7..c8f9eac121a1 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -1,5 +1,5 @@ /* - * 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 @@ -16,56 +16,6 @@ #include #include -static void amiga_irq_enable(struct irq_data *data); -static void amiga_irq_disable(struct irq_data *data); -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_chip amiga_irq_chip = { - .name = "amiga", - .irq_enable = amiga_irq_enable, - .irq_disable = amiga_irq_disable, -}; - -/* - * void amiga_init_IRQ(void) - * - * Parameters: None - * - * Returns: Nothing - * - * This function should be called during kernel startup to initialize - * the amiga IRQ handling routines. - */ - -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); - - /* turn off PCMCIA interrupts */ - if (AMIGAHW_PRESENT(PCMCIA)) - gayle.inten = GAYLE_IRQ_IDE; - - /* turn off all interrupts and enable the master interrupt bit */ - amiga_custom.intena = 0x7fff; - amiga_custom.intreq = 0x7fff; - amiga_custom.intena = IF_SETCLR | IF_INTEN; - - cia_init_IRQ(&ciaa_base); - cia_init_IRQ(&ciab_base); -} /* * Enable/disable a particular machine specific interrupt source. @@ -84,6 +34,13 @@ 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", + .irq_enable = amiga_irq_enable, + .irq_disable = amiga_irq_disable, +}; + + /* * The builtin Amiga hardware interrupt handlers. */ @@ -183,3 +140,42 @@ static irqreturn_t ami_int5(int irq, void *dev_id) } return IRQ_HANDLED; } + + +/* + * void amiga_init_IRQ(void) + * + * Parameters: None + * + * Returns: Nothing + * + * This function should be called during kernel startup to initialize + * the amiga IRQ handling routines. + */ + +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); + + /* turn off PCMCIA interrupts */ + if (AMIGAHW_PRESENT(PCMCIA)) + gayle.inten = GAYLE_IRQ_IDE; + + /* turn off all interrupts and enable the master interrupt bit */ + amiga_custom.intena = 0x7fff; + amiga_custom.intreq = 0x7fff; + amiga_custom.intena = IF_SETCLR | IF_INTEN; + + cia_init_IRQ(&ciaa_base); + cia_init_IRQ(&ciab_base); +} From 978ef7e6d0e02083e4a62ab4411922bdeffa36a4 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 31 May 2011 22:08:28 +0200 Subject: [PATCH 17/29] m68k/amiga: Convert Amiga to genirq Signed-off-by: Geert Uytterhoeven --- arch/m68k/Kconfig | 1 - arch/m68k/amiga/amiints.c | 3 +++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 9d60f4004076..9000921385aa 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -87,7 +87,6 @@ config MMU_SUN3 config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU - depends on !AMIGA depends on !MAC depends on !APOLLO depends on !MVME147 diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index c8f9eac121a1..c3da5342f495 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -9,6 +9,9 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#endif #include #include From fb1b646aa3bcae2f8211136a6b40228c7c9d236c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 1 Jun 2011 11:49:18 +0200 Subject: [PATCH 18/29] m68k/amiga: Optimize interrupts using chain handlers Signed-off-by: Geert Uytterhoeven --- arch/m68k/amiga/amiints.c | 104 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index c3da5342f495..a8da47126584 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -48,6 +48,99 @@ static struct irq_chip amiga_irq_chip = { * The builtin Amiga hardware interrupt handlers. */ +#ifdef CONFIG_GENERIC_HARDIRQS +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); + } +} +#else /* !CONFIG_GENERIC_HARDIRQS */ static irqreturn_t ami_int1(int irq, void *dev_id) { unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; @@ -143,6 +236,7 @@ static irqreturn_t ami_int5(int irq, void *dev_id) } return IRQ_HANDLED; } +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* @@ -158,6 +252,15 @@ static irqreturn_t ami_int5(int irq, void *dev_id) void __init amiga_init_IRQ(void) { +#ifdef CONFIG_GENERIC_HARDIRQS + m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, 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); +#else /* !CONFIG_GENERIC_HARDIRQS */ 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)) @@ -169,6 +272,7 @@ void __init amiga_init_IRQ(void) m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER, AMI_STD_IRQS); +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) From ddc7fd25d09678f8252c0321ef4b66e8451abe7d Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 13 Jul 2011 21:48:30 +0200 Subject: [PATCH 19/29] m68k/mac: Convert Mac to genirq Signed-off-by: Geert Uytterhoeven --- arch/m68k/Kconfig | 1 - arch/m68k/mac/baboon.c | 3 +++ arch/m68k/mac/oss.c | 3 +++ arch/m68k/mac/psc.c | 3 +++ arch/m68k/mac/via.c | 3 +++ 5 files changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 9000921385aa..9ba1a89e0032 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -87,7 +87,6 @@ config MMU_SUN3 config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU - depends on !MAC depends on !APOLLO depends on !MVME147 depends on !MVME16x diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index f264791b8694..ff11746b0621 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -11,6 +11,9 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#endif #include #include diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index 1eb60f071007..ed952704e6ee 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -19,6 +19,9 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#endif #include #include diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index 26c2b6595808..0a34b7afc376 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -18,6 +18,9 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#endif #include #include diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index af9ed33bec14..bde156caa46d 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -28,6 +28,9 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#endif #include #include From 9145db564eae98134de8eb8d64b47d7177eccfdd Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 10 Aug 2011 12:48:29 +0200 Subject: [PATCH 20/29] m68k/mac: Optimize interrupts using chain handlers Signed-off-by: Geert Uytterhoeven --- arch/m68k/mac/baboon.c | 38 +++++++++++ arch/m68k/mac/oss.c | 106 ++++++++++++++++++++++++------ arch/m68k/mac/psc.c | 78 ++++++++++++++++------ arch/m68k/mac/via.c | 143 +++++++++++++++++++++++++++++++++-------- 4 files changed, 300 insertions(+), 65 deletions(-) diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index ff11746b0621..425144cbfa7d 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -56,6 +56,39 @@ void __init baboon_init(void) * Baboon interrupt handler. This works a lot like a VIA. */ +#ifdef CONFIG_GENERIC_HARDIRQS +static void baboon_irq(unsigned int irq, struct irq_desc *desc) +{ + int irq_bit, irq_num; + unsigned char events; + +#ifdef DEBUG_IRQS + printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X\n", + (uint) baboon->mb_control, (uint) baboon->mb_ifr, + (uint) baboon->mb_status); +#endif + + 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; + generic_handle_irq(irq_num); + } + irq_bit <<= 1; + irq_num++; + } while(events >= irq_bit); +#if 0 + if (baboon->mb_ifr & 0x02) macide_ack_intr(NULL); + /* for now we need to smash all interrupts */ + baboon->mb_ifr &= ~events; +#endif +} +#else static irqreturn_t baboon_irq(int irq, void *dev_id) { int irq_bit, irq_num; @@ -87,6 +120,7 @@ static irqreturn_t baboon_irq(int irq, void *dev_id) #endif return IRQ_HANDLED; } +#endif /* * Register the Baboon interrupt dispatcher on nubus slot $C. @@ -95,8 +129,12 @@ static irqreturn_t baboon_irq(int irq, void *dev_id) void __init baboon_register_interrupts(void) { baboon_disabled = 0; +#ifdef CONFIG_GENERIC_HARDIRQS + irq_set_chained_handler(IRQ_NUBUS_C, baboon_irq); +#else if (request_irq(IRQ_NUBUS_C, baboon_irq, 0, "baboon", (void *)baboon)) pr_err("Couldn't register baboon interrupt\n"); +#endif } /* diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index ed952704e6ee..cc784c2ff6e8 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -32,10 +32,11 @@ int oss_present; volatile struct mac_oss *oss; -static irqreturn_t oss_irq(int, void *); -static irqreturn_t oss_nubus_irq(int, void *); - +#ifdef CONFIG_GENERIC_HARDIRQS +extern void via1_irq(unsigned int irq, struct irq_desc *desc); +#else extern irqreturn_t via1_irq(int, void *); +#endif /* * Initialize the OSS @@ -62,23 +63,6 @@ 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, 0, "scsi", (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "scsi"); - if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, 0, "nubus", - (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "nubus"); - if (request_irq(OSS_IRQLEV_SOUND, oss_irq, 0, "sound", (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "sound"); - if (request_irq(OSS_IRQLEV_VIA1, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); -} - /* * Initialize OSS for Nubus access */ @@ -92,6 +76,34 @@ void __init oss_nubus_init(void) * and SCSI; everything else is routed to its own autovector IRQ. */ +#ifdef CONFIG_GENERIC_HARDIRQS +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; + +#ifdef DEBUG_IRQS + if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) { + printk("oss_irq: irq %u events = 0x%04X\n", irq, + (int) oss->irq_pending); + } +#endif + /* FIXME: how do you clear a pending IRQ? */ + + if (events & OSS_IP_SOUND) { + oss->irq_pending &= ~OSS_IP_SOUND; + /* FIXME: call sound handler */ + } else if (events & OSS_IP_SCSI) { + oss->irq_pending &= ~OSS_IP_SCSI; + generic_handle_irq(IRQ_MAC_SCSI); + } else { + /* FIXME: error check here? */ + } +} +#else static irqreturn_t oss_irq(int irq, void *dev_id) { int events; @@ -119,6 +131,7 @@ static irqreturn_t oss_irq(int irq, void *dev_id) } return IRQ_HANDLED; } +#endif /* * Nubus IRQ handler, OSS style @@ -126,6 +139,34 @@ static irqreturn_t oss_irq(int irq, void *dev_id) * Unlike the VIA/RBV this is on its own autovector interrupt level. */ +#ifdef CONFIG_GENERIC_HARDIRQS +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; + +#ifdef DEBUG_NUBUS_INT + if (console_loglevel > 7) { + printk("oss_nubus_irq: events = 0x%04X\n", events); + } +#endif + /* There are only six slots on the OSS, not seven */ + + i = 6; + irq_bit = 0x40; + do { + --i; + irq_bit >>= 1; + if (events & irq_bit) { + oss->irq_pending &= ~irq_bit; + generic_handle_irq(NUBUS_SOURCE_BASE + i); + } + } while(events & (irq_bit - 1)); +} +#else static irqreturn_t oss_nubus_irq(int irq, void *dev_id) { int events, irq_bit, i; @@ -153,6 +194,31 @@ static irqreturn_t oss_nubus_irq(int irq, void *dev_id) } while(events & (irq_bit - 1)); return IRQ_HANDLED; } +#endif + +/* + * Register the OSS and NuBus interrupt dispatchers. + */ + +void __init oss_register_interrupts(void) +{ +#ifdef CONFIG_GENERIC_HARDIRQS + 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); +#else /* !CONFIG_GENERIC_HARDIRQS */ + if (request_irq(OSS_IRQLEV_SCSI, oss_irq, 0, "scsi", (void *)oss)) + pr_err("Couldn't register %s interrupt\n", "scsi"); + if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, 0, "nubus", + (void *)oss)) + pr_err("Couldn't register %s interrupt\n", "nubus"); + if (request_irq(OSS_IRQLEV_SOUND, oss_irq, 0, "sound", (void *)oss)) + pr_err("Couldn't register %s interrupt\n", "sound"); + if (request_irq(OSS_IRQLEV_VIA1, via1_irq, 0, "via1", (void *)via1)) + pr_err("Couldn't register %s interrupt\n", "via1"); +#endif /* !CONFIG_GENERIC_HARDIRQS */ +} /* * Enable an OSS interrupt diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index 0a34b7afc376..52840b8c03b8 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -33,8 +33,6 @@ int psc_present; volatile __u8 *psc; -irqreturn_t psc_irq(int, void *); - /* * Debugging dump, used in various places to see what's going on. */ @@ -114,27 +112,41 @@ void __init psc_init(void) } } -/* - * Register the PSC interrupt dispatchers for autovector interrupts 3-6. - */ - -void __init psc_register_interrupts(void) -{ - if (request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30)) - pr_err("Couldn't register psc%d interrupt\n", 3); - if (request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40)) - pr_err("Couldn't register psc%d interrupt\n", 4); - if (request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50)) - pr_err("Couldn't register psc%d interrupt\n", 5); - if (request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60)) - pr_err("Couldn't register psc%d interrupt\n", 6); -} - /* * PSC interrupt handler. It's a lot like the VIA interrupt handler. */ -irqreturn_t psc_irq(int irq, void *dev_id) +#ifdef CONFIG_GENERIC_HARDIRQS +static void psc_irq(unsigned int irq, struct irq_desc *desc) +{ + unsigned int offset = (unsigned int)irq_desc_get_handler_data(desc); + int pIFR = pIFRbase + offset; + int pIER = pIERbase + offset; + int irq_num; + unsigned char irq_bit, events; + +#ifdef DEBUG_IRQS + printk("psc_irq: irq %u pIFR = 0x%02X pIER = 0x%02X\n", + irq, (int) psc_read_byte(pIFR), (int) psc_read_byte(pIER)); +#endif + + events = psc_read_byte(pIFR) & psc_read_byte(pIER) & 0xF; + if (!events) + return; + + irq_num = irq << 3; + irq_bit = 1; + do { + if (events & irq_bit) { + psc_write_byte(pIFR, irq_bit); + generic_handle_irq(irq_num); + } + irq_num++; + irq_bit <<= 1; + } while (events >= irq_bit); +} +#else +static irqreturn_t psc_irq(int irq, void *dev_id) { int pIFR = pIFRbase + ((int) dev_id); int pIER = pIERbase + ((int) dev_id); @@ -162,6 +174,34 @@ irqreturn_t psc_irq(int irq, void *dev_id) } while (events >= irq_bit); return IRQ_HANDLED; } +#endif + +/* + * Register the PSC interrupt dispatchers for autovector interrupts 3-6. + */ + +void __init psc_register_interrupts(void) +{ +#ifdef CONFIG_GENERIC_HARDIRQS + irq_set_chained_handler(IRQ_AUTO_3, psc_irq); + irq_set_handler_data(IRQ_AUTO_3, (void *)0x30); + irq_set_chained_handler(IRQ_AUTO_4, psc_irq); + irq_set_handler_data(IRQ_AUTO_4, (void *)0x40); + irq_set_chained_handler(IRQ_AUTO_5, psc_irq); + irq_set_handler_data(IRQ_AUTO_5, (void *)0x50); + irq_set_chained_handler(IRQ_AUTO_6, psc_irq); + irq_set_handler_data(IRQ_AUTO_6, (void *)0x60); +#else /* !CONFIG_GENERIC_HARDIRQS */ + if (request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30)) + pr_err("Couldn't register psc%d interrupt\n", 3); + if (request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40)) + pr_err("Couldn't register psc%d interrupt\n", 4); + if (request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50)) + pr_err("Couldn't register psc%d interrupt\n", 5); + if (request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60)) + pr_err("Couldn't register psc%d interrupt\n", 6); +#endif /* !CONFIG_GENERIC_HARDIRQS */ +} void psc_irq_enable(int irq) { int irq_src = IRQ_SRC(irq); diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index bde156caa46d..b8156ac496a0 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -80,9 +80,6 @@ static int gIER,gIFR,gBufA,gBufB; static u8 nubus_disabled; void via_debug_dump(void); -irqreturn_t via1_irq(int, void *); -irqreturn_t via2_irq(int, void *); -irqreturn_t via_nubus_irq(int, void *); void via_irq_enable(int irq); void via_irq_disable(int irq); void via_irq_clear(int irq); @@ -288,29 +285,6 @@ void __init via_init_clock(irq_handler_t func) pr_err("Couldn't register %s interrupt\n", "timer"); } -/* - * Register the interrupt dispatchers for VIA or RBV machines only. - */ - -void __init via_register_interrupts(void) -{ - if (via_alt_mapping) { - if (request_irq(IRQ_AUTO_1, via1_irq, 0, "software", - (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "software"); - if (request_irq(IRQ_AUTO_6, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); - } else { - if (request_irq(IRQ_AUTO_1, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); - } - if (request_irq(IRQ_AUTO_2, via2_irq, 0, "via2", (void *)via2)) - pr_err("Couldn't register %s interrupt\n", "via2"); - if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 0, "nubus", - (void *)via2)) - pr_err("Couldn't register %s interrupt\n", "nubus"); -} - /* * Debugging dump, used in various places to see what's going on. */ @@ -443,6 +417,49 @@ void __init via_nubus_init(void) * via6522.c :-), disable/pending masks added. */ +#ifdef CONFIG_GENERIC_HARDIRQS +void via1_irq(unsigned int irq, struct irq_desc *desc) +{ + int irq_num; + unsigned char irq_bit, events; + + events = via1[vIFR] & via1[vIER] & 0x7F; + if (!events) + return; + + irq_num = VIA1_SOURCE_BASE; + irq_bit = 1; + do { + if (events & irq_bit) { + via1[vIFR] = irq_bit; + generic_handle_irq(irq_num); + } + ++irq_num; + irq_bit <<= 1; + } while (events >= irq_bit); +} + +static void via2_irq(unsigned int irq, struct irq_desc *desc) +{ + int irq_num; + unsigned char irq_bit, events; + + events = via2[gIFR] & via2[gIER] & 0x7F; + if (!events) + return; + + irq_num = VIA2_SOURCE_BASE; + irq_bit = 1; + do { + if (events & irq_bit) { + via2[gIFR] = irq_bit | rbv_clear; + generic_handle_irq(irq_num); + } + ++irq_num; + irq_bit <<= 1; + } while (events >= irq_bit); +} +#else irqreturn_t via1_irq(int irq, void *dev_id) { int irq_num; @@ -486,12 +503,49 @@ irqreturn_t via2_irq(int irq, void *dev_id) } while (events >= irq_bit); return IRQ_HANDLED; } +#endif /* * Dispatch Nubus interrupts. We are called as a secondary dispatch by the * VIA2 dispatcher as a fast interrupt handler. */ +#ifdef CONFIG_GENERIC_HARDIRQS +void via_nubus_irq(unsigned int irq, struct irq_desc *desc) +{ + int slot_irq; + unsigned char slot_bit, events; + + events = ~via2[gBufA] & 0x7F; + if (rbv_present) + events &= via2[rSIER]; + else + events &= ~via2[vDirA]; + if (!events) + return; + + do { + slot_irq = IRQ_NUBUS_F; + slot_bit = 0x40; + do { + if (events & slot_bit) { + events &= ~slot_bit; + generic_handle_irq(slot_irq); + } + --slot_irq; + slot_bit >>= 1; + } while (events); + + /* clear the CA1 interrupt and make certain there's no more. */ + via2[gIFR] = 0x02 | rbv_clear; + events = ~via2[gBufA] & 0x7F; + if (rbv_present) + events &= via2[rSIER]; + else + events &= ~via2[vDirA]; + } while (events); +} +#else irqreturn_t via_nubus_irq(int irq, void *dev_id) { int slot_irq; @@ -527,6 +581,43 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id) } while (events); return IRQ_HANDLED; } +#endif + +/* + * Register the interrupt dispatchers for VIA or RBV machines only. + */ + +void __init via_register_interrupts(void) +{ +#ifdef CONFIG_GENERIC_HARDIRQS + if (via_alt_mapping) { + /* software interrupt */ + irq_set_chained_handler(IRQ_AUTO_1, via1_irq); + /* via1 interrupt */ + irq_set_chained_handler(IRQ_AUTO_6, via1_irq); + } else { + irq_set_chained_handler(IRQ_AUTO_1, via1_irq); + } + irq_set_chained_handler(IRQ_AUTO_2, via2_irq); + irq_set_chained_handler(IRQ_MAC_NUBUS, via_nubus_irq); +#else + if (via_alt_mapping) { + if (request_irq(IRQ_AUTO_1, via1_irq, 0, "software", + (void *)via1)) + pr_err("Couldn't register %s interrupt\n", "software"); + if (request_irq(IRQ_AUTO_6, via1_irq, 0, "via1", (void *)via1)) + pr_err("Couldn't register %s interrupt\n", "via1"); + } else { + if (request_irq(IRQ_AUTO_1, via1_irq, 0, "via1", (void *)via1)) + pr_err("Couldn't register %s interrupt\n", "via1"); + } + if (request_irq(IRQ_AUTO_2, via2_irq, 0, "via2", (void *)via2)) + pr_err("Couldn't register %s interrupt\n", "via2"); + if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 0, "nubus", + (void *)via2)) + pr_err("Couldn't register %s interrupt\n", "nubus"); +#endif +} void via_irq_enable(int irq) { int irq_src = IRQ_SRC(irq); From efaf6d28fc768bfa373f7377c4b0484cbdf9f67e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 13 Aug 2011 21:02:22 +0200 Subject: [PATCH 21/29] m68k/hp300: Convert HP9000/300 and HP9000/400 to genirq Signed-off-by: Geert Uytterhoeven Cc: Philip Blundell --- arch/m68k/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 9ba1a89e0032..e4bd0c974643 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -91,7 +91,6 @@ config USE_GENERIC_HARDIRQS depends on !MVME147 depends on !MVME16x depends on !BVME6000 - depends on !HP300 depends on !SUN3X depends on !Q40 depends on !SUN3 From 6c490c4da4642ec9e7569c8b50a98a22c71ad184 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 13 Aug 2011 21:11:00 +0200 Subject: [PATCH 22/29] m68k/vme: Convert VME to genirq Signed-off-by: Geert Uytterhoeven Cc: Richard Hirst --- arch/m68k/Kconfig | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index e4bd0c974643..8ae37a8fba40 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -88,9 +88,6 @@ config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU depends on !APOLLO - depends on !MVME147 - depends on !MVME16x - depends on !BVME6000 depends on !SUN3X depends on !Q40 depends on !SUN3 From bc7485acd09405d9544783d773ee040af4a5c861 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 18 Aug 2011 14:45:57 +0200 Subject: [PATCH 23/29] m68k/apollo: Convert Apollo to genirq Replace the custom user vector interrupt handler that calls do_IRQ() and does an EOI by handle_fasteoi_irq(). Signed-off-by: Geert Uytterhoeven Cc: Peter De Schrijver --- arch/m68k/Kconfig | 1 - arch/m68k/apollo/dn_ints.c | 25 +++++++++++++++++++++++-- 2 files changed, 23 insertions(+), 3 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 8ae37a8fba40..f2dc708d3da9 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -87,7 +87,6 @@ config MMU_SUN3 config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU - depends on !APOLLO depends on !SUN3X depends on !Q40 depends on !SUN3 diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index 4b764312aed0..fc190b34b621 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -1,9 +1,14 @@ #include - +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#else #include +#endif + #include #include +#ifndef CONFIG_GENERIC_HARDIRQS void dn_process_int(unsigned int irq, struct pt_regs *fp) { do_IRQ(irq, fp); @@ -11,6 +16,7 @@ void dn_process_int(unsigned int irq, struct pt_regs *fp) *(volatile unsigned char *)(pica)=0x20; *(volatile unsigned char *)(picb)=0x20; } +#endif unsigned int apollo_irq_startup(struct irq_data *data) { @@ -33,16 +39,31 @@ void apollo_irq_shutdown(struct irq_data *data) *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8)); } +#ifdef CONFIG_GENERIC_HARDIRQS +void apollo_irq_eoi(struct irq_data *data) +{ + *(volatile unsigned char *)(pica) = 0x20; + *(volatile unsigned char *)(picb) = 0x20; +} +#endif + static struct irq_chip apollo_irq_chip = { .name = "apollo", .irq_startup = apollo_irq_startup, .irq_shutdown = apollo_irq_shutdown, +#ifdef CONFIG_GENERIC_HARDIRQS + .irq_eoi = apollo_irq_eoi, +#endif }; void __init dn_init_IRQ(void) { +#ifdef CONFIG_GENERIC_HARDIRQS + m68k_setup_user_interrupt(VEC_USER + 96, 16, NULL); +#else m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int); - m68k_setup_irq_controller(&apollo_irq_chip, handle_simple_irq, +#endif + m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq, IRQ_APOLLO, 16); } From 4045513286462a3c12140fac0559f09bcb5e7f10 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 18 Aug 2011 22:46:01 +0200 Subject: [PATCH 24/29] m68k/sun3: Use the kstat_irqs_cpu() wrapper Signed-off-by: Geert Uytterhoeven Acked-by: Sam Creasey --- arch/m68k/sun3/sun3ints.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 20ffee7dc319..1273eb879a15 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -51,14 +51,19 @@ void sun3_disable_irq(unsigned int irq) static irqreturn_t sun3_int7(int irq, void *dev_id) { + unsigned int cnt; + *sun3_intreg |= (1 << irq); - if (!(kstat_cpu(0).irqs[irq] % 2000)) - sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 16000) / 2000]); + cnt = kstat_irqs_cpu(irq, 0); + if (!(cnt % 2000)) + sun3_leds(led_pattern[cnt % 16000 / 2000]); return IRQ_HANDLED; } static irqreturn_t sun3_int5(int irq, void *dev_id) { + unsigned int cnt; + #ifdef CONFIG_SUN3 intersil_clear(); #endif @@ -68,8 +73,9 @@ static irqreturn_t sun3_int5(int irq, void *dev_id) #endif xtime_update(1); update_process_times(user_mode(get_irq_regs())); - if (!(kstat_cpu(0).irqs[irq] % 20)) - sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 160) / 20]); + cnt = kstat_irqs_cpu(irq, 0); + if (!(cnt % 20)) + sun3_leds(led_pattern[cnt % 160 / 20]); return IRQ_HANDLED; } From dda7535912255015ecf7264c1d6691a09f8ba487 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 18 Aug 2011 14:46:46 +0200 Subject: [PATCH 25/29] m68k/sun3: Convert Sun3/3x to genirq Replace the custom irq handler that masks the irq and calls do_IRQ(), and the unmasking in the individual handlers, by handle_level_irq(). Signed-off-by: Geert Uytterhoeven Cc: Sam Creasey --- arch/m68k/Kconfig | 2 -- arch/m68k/sun3/sun3ints.c | 16 ++++++++++++++-- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index f2dc708d3da9..290f9c838b35 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -87,9 +87,7 @@ config MMU_SUN3 config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU - depends on !SUN3X depends on !Q40 - depends on !SUN3 select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 1273eb879a15..626b601931e9 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -53,7 +53,9 @@ static irqreturn_t sun3_int7(int irq, void *dev_id) { unsigned int cnt; +#ifndef CONFIG_GENERIC_HARDIRQS *sun3_intreg |= (1 << irq); +#endif cnt = kstat_irqs_cpu(irq, 0); if (!(cnt % 2000)) sun3_leds(led_pattern[cnt % 16000 / 2000]); @@ -67,7 +69,9 @@ static irqreturn_t sun3_int5(int irq, void *dev_id) #ifdef CONFIG_SUN3 intersil_clear(); #endif +#ifndef CONFIG_GENERIC_HARDIRQS *sun3_intreg |= (1 << irq); +#endif #ifdef CONFIG_SUN3 intersil_clear(); #endif @@ -85,12 +89,14 @@ static irqreturn_t sun3_vec255(int irq, void *dev_id) return IRQ_HANDLED; } +#ifndef CONFIG_GENERIC_HARDIRQS static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) { *sun3_intreg &= ~(1 << irq); do_IRQ(irq, fp); } +#endif static void sun3_irq_enable(struct irq_data *data) { @@ -108,15 +114,21 @@ static struct irq_chip sun3_irq_chip = { .irq_shutdown = m68k_irq_shutdown, .irq_enable = sun3_irq_enable, .irq_disable = sun3_irq_disable, +#ifdef CONFIG_GENERIC_HARDIRQS + .irq_mask = sun3_irq_disable, + .irq_unmask = sun3_irq_enable, +#endif }; void __init sun3_init_IRQ(void) { *sun3_intreg = 1; +#ifndef CONFIG_GENERIC_HARDIRQS m68k_setup_auto_interrupt(sun3_inthandle); - m68k_setup_irq_controller(&sun3_irq_chip, handle_simple_irq, - IRQ_AUTO_1, 7); +#endif + m68k_setup_irq_controller(&sun3_irq_chip, handle_level_irq, IRQ_AUTO_1, + 7); m68k_setup_user_interrupt(VEC_USER, 128, NULL); if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL)) From a03010ed9b399fdbc28ac8836e0a6d4b15403f9f Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 18 Aug 2011 14:47:16 +0200 Subject: [PATCH 26/29] m68k/q40: Convert Q40/Q60 to genirq q40_irq_handler() must be kept to translate ISA IRQs to the range 1-15. q40_probe_irq_o{ff,n}() become unused. Signed-off-by: Geert Uytterhoeven Cc: Richard Zidlicky --- arch/m68k/Kconfig | 1 - arch/m68k/include/asm/q40ints.h | 2 ++ arch/m68k/q40/q40ints.c | 8 +++++++- 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 290f9c838b35..06198ced2245 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -87,7 +87,6 @@ config MMU_SUN3 config USE_GENERIC_HARDIRQS bool "Use genirq" depends on MMU - depends on !Q40 select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW diff --git a/arch/m68k/include/asm/q40ints.h b/arch/m68k/include/asm/q40ints.h index 3d970afb708f..01cdbb4da465 100644 --- a/arch/m68k/include/asm/q40ints.h +++ b/arch/m68k/include/asm/q40ints.h @@ -25,5 +25,7 @@ #define Q40_IRQ14_MASK (1<<6) #define Q40_IRQ15_MASK (1<<7) +#ifndef CONFIG_GENERIC_HARDIRQS extern unsigned long q40_probe_irq_on (void); extern int q40_probe_irq_off (unsigned long irqs); +#endif diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index afe600c03659..f1e5288f043f 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -15,10 +15,14 @@ #include #include #include +#ifdef CONFIG_GENERIC_HARDIRQS +#include +#else +#include +#endif #include #include -#include #include #include @@ -326,6 +330,7 @@ void q40_irq_disable(struct irq_data *data) } } +#ifndef CONFIG_GENERIC_HARDIRQS unsigned long q40_probe_irq_on(void) { printk("irq probing not working - reconfigure the driver to avoid this\n"); @@ -335,3 +340,4 @@ int q40_probe_irq_off(unsigned long irqs) { return -1; } +#endif From d890d73995257b4e10cdd7d55bad80e34a71ba22 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 11 Sep 2011 11:28:04 +0200 Subject: [PATCH 27/29] m68k/irq: Remove obsolete m68k irq framework Signed-off-by: Geert Uytterhoeven --- arch/m68k/Kconfig | 10 +- arch/m68k/amiga/amiints.c | 114 ------------ arch/m68k/apollo/dn_ints.c | 22 --- arch/m68k/include/asm/irq.h | 63 ------- arch/m68k/include/asm/q40ints.h | 5 - arch/m68k/kernel/Makefile | 10 +- arch/m68k/kernel/ints.c | 297 -------------------------------- arch/m68k/mac/baboon.c | 41 ----- arch/m68k/mac/oss.c | 78 --------- arch/m68k/mac/psc.c | 44 ----- arch/m68k/mac/via.c | 104 ----------- arch/m68k/q40/q40ints.c | 16 -- arch/m68k/sun3/sun3ints.c | 20 --- 13 files changed, 4 insertions(+), 820 deletions(-) diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 06198ced2245..361d54019bb0 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -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 @@ -84,12 +84,6 @@ config MMU_SUN3 bool depends on MMU && !MMU_MOTOROLA -config USE_GENERIC_HARDIRQS - bool "Use genirq" - depends on MMU - select HAVE_GENERIC_HARDIRQS - select GENERIC_IRQ_SHOW - menu "Platform setup" source arch/m68k/Kconfig.cpu diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index a8da47126584..47b5f90002ab 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -9,9 +9,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#endif #include #include @@ -48,7 +46,6 @@ static struct irq_chip amiga_irq_chip = { * The builtin Amiga hardware interrupt handlers. */ -#ifdef CONFIG_GENERIC_HARDIRQS static void ami_int1(unsigned int irq, struct irq_desc *desc) { unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; @@ -140,103 +137,6 @@ static void ami_int5(unsigned int irq, struct irq_desc *desc) generic_handle_irq(IRQ_AMIGA_DSKSYN); } } -#else /* !CONFIG_GENERIC_HARDIRQS */ -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; - 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); - } - 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; - 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); - } - 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; - 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); - } - 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 */ - 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); - } - return IRQ_HANDLED; -} -#endif /* !CONFIG_GENERIC_HARDIRQS */ /* @@ -252,7 +152,6 @@ static irqreturn_t ami_int5(int irq, void *dev_id) void __init amiga_init_IRQ(void) { -#ifdef CONFIG_GENERIC_HARDIRQS m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER, AMI_STD_IRQS); @@ -260,19 +159,6 @@ void __init amiga_init_IRQ(void) 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); -#else /* !CONFIG_GENERIC_HARDIRQS */ - 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); -#endif /* !CONFIG_GENERIC_HARDIRQS */ /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index fc190b34b621..b7d0aa37d199 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -1,23 +1,9 @@ #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#else -#include -#endif #include #include -#ifndef CONFIG_GENERIC_HARDIRQS -void dn_process_int(unsigned int irq, struct pt_regs *fp) -{ - do_IRQ(irq, fp); - - *(volatile unsigned char *)(pica)=0x20; - *(volatile unsigned char *)(picb)=0x20; -} -#endif - unsigned int apollo_irq_startup(struct irq_data *data) { unsigned int irq = data->irq; @@ -39,31 +25,23 @@ void apollo_irq_shutdown(struct irq_data *data) *(volatile unsigned char *)(picb+1) |= (1 << (irq - 8)); } -#ifdef CONFIG_GENERIC_HARDIRQS void apollo_irq_eoi(struct irq_data *data) { *(volatile unsigned char *)(pica) = 0x20; *(volatile unsigned char *)(picb) = 0x20; } -#endif static struct irq_chip apollo_irq_chip = { .name = "apollo", .irq_startup = apollo_irq_startup, .irq_shutdown = apollo_irq_shutdown, -#ifdef CONFIG_GENERIC_HARDIRQS .irq_eoi = apollo_irq_eoi, -#endif }; void __init dn_init_IRQ(void) { -#ifdef CONFIG_GENERIC_HARDIRQS m68k_setup_user_interrupt(VEC_USER + 96, 16, NULL); -#else - m68k_setup_user_interrupt(VEC_USER + 96, 16, dn_process_int); -#endif m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq, IRQ_APOLLO, 16); } diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 518e61f2fccb..94349a525bc2 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -62,67 +62,6 @@ #define IRQ_FLG_STD (0x8000) /* internally used */ #endif -#ifndef CONFIG_GENERIC_HARDIRQS - -#include -#include -#include -#include - -struct pt_regs; - -/* - * This structure is used to chain together the ISRs for a particular - * interrupt source (if it supports chaining). - */ -struct irq_data { - unsigned int irq; - irqreturn_t (*handler)(int, void *); - void *dev_id; - struct irq_data *next; - unsigned long flags; - const char *devname; -}; - -/* - * 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_chip { - const char *name; - unsigned int (*irq_startup)(struct irq_data *data); - void (*irq_shutdown)(struct irq_data *data); - void (*irq_enable)(struct irq_data *data); - void (*irq_disable)(struct irq_data *data); -}; - -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); - -/* - * This function returns a new struct irq_data - */ -extern struct irq_data *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_chip(struct irq_chip *, unsigned int, unsigned int); -#define m68k_setup_irq_controller(chip, dummy, irq, cnt) \ - m68k_setup_irq_chip((chip), (irq), (cnt)) - -extern void generic_handle_irq(unsigned int); -asmlinkage void do_IRQ(int irq, struct pt_regs *regs); - -#else /* CONFIG_GENERIC_HARDIRQS */ - struct irq_data; struct irq_chip; struct irq_desc; @@ -139,8 +78,6 @@ extern void m68k_setup_irq_controller(struct irq_chip *, struct irq_desc *desc), unsigned int irq, unsigned int cnt); -#endif /* CONFIG_GENERIC_HARDIRQS */ - extern unsigned int irq_canonicalize(unsigned int irq); #else diff --git a/arch/m68k/include/asm/q40ints.h b/arch/m68k/include/asm/q40ints.h index 01cdbb4da465..22f12c9eb910 100644 --- a/arch/m68k/include/asm/q40ints.h +++ b/arch/m68k/include/asm/q40ints.h @@ -24,8 +24,3 @@ #define Q40_IRQ10_MASK (1<<5) #define Q40_IRQ14_MASK (1<<6) #define Q40_IRQ15_MASK (1<<7) - -#ifndef CONFIG_GENERIC_HARDIRQS -extern unsigned long q40_probe_irq_on (void); -extern int q40_probe_irq_off (unsigned long irqs); -#endif diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile index 141425785c4e..c5696193281a 100644 --- a/arch/m68k/kernel/Makefile +++ b/arch/m68k/kernel/Makefile @@ -6,11 +6,10 @@ 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 vectors.o -devres-$(CONFIG_MMU) = ../../../kernel/irq/devres.o ifndef CONFIG_MMU_SUN3 obj-y += dma.o @@ -18,9 +17,4 @@ endif ifndef CONFIG_MMU obj-y += init_task.o endif -ifdef CONFIG_GENERIC_HARDIRQS -obj-y += irq.o -else -obj-y += devres.o -endif diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index cea439f9819b..e2b056b3a314 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -31,20 +31,6 @@ extern u32 auto_irqhandler_fixup[]; extern u32 user_irqhandler_fixup[]; extern u16 user_irqvec_fixup[]; -#ifndef CONFIG_GENERIC_HARDIRQS -/* table for system interrupt handlers */ -static struct irq_data *irq_list[NR_IRQS]; -static struct irq_chip *irq_chip[NR_IRQS]; -static int irq_depth[NR_IRQS]; - -static inline int irq_set_chip(unsigned int irq, struct irq_chip *chip) -{ - irq_chip[irq] = chip; - return 0; -} -#define irq_set_chip_and_handler(irq, chip, dummy) irq_set_chip(irq, chip) -#endif /* !CONFIG_GENERIC_HARDIRQS */ - static int m68k_first_user_vec; static struct irq_chip auto_irq_chip = { @@ -59,11 +45,6 @@ static struct irq_chip user_irq_chip = { .irq_shutdown = m68k_irq_shutdown, }; -#ifndef CONFIG_GENERIC_HARDIRQS -#define NUM_IRQ_NODES 100 -static struct irq_data nodes[NUM_IRQ_NODES]; -#endif /* !CONFIG_GENERIC_HARDIRQS */ - /* * void init_IRQ(void) * @@ -133,8 +114,6 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, flush_icache(); } -#ifdef CONFIG_GENERIC_HARDIRQS - /** * m68k_setup_irq_controller * @chip: irq chip which controls specified irq @@ -160,198 +139,6 @@ void m68k_setup_irq_controller(struct irq_chip *chip, } } -#else /* !CONFIG_GENERIC_HARDIRQS */ - -/** - * m68k_setup_irq_chip - * @contr: irq controller which controls specified irq - * @irq: first irq 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_chip(struct irq_chip *contr, unsigned int irq, - unsigned int cnt) -{ - int i; - - for (i = 0; i < cnt; i++) - irq_set_chip(irq + i, contr); -} - -struct irq_data *new_irq_node(void) -{ - struct irq_data *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; -} - -static int m68k_setup_irq(unsigned int irq, struct irq_data *node) -{ - struct irq_chip *contr; - struct irq_data **prev; - unsigned long flags; - - if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { - printk("%s: Incorrect IRQ %d from %s\n", - __func__, irq, node->devname); - return -ENXIO; - } - - local_irq_save(flags); - - prev = irq_list + irq; - if (*prev) { - /* Can't share interrupts unless both agree to */ - if (!((*prev)->flags & node->flags & IRQF_SHARED)) { - local_irq_restore(flags); - return -EBUSY; - } - while (*prev) - prev = &(*prev)->next; - } - - if (!irq_list[irq]) { - if (contr->irq_startup) - contr->irq_startup(node); - else - contr->irq_enable(node); - } - node->next = NULL; - *prev = node; - - local_irq_restore(flags); - - return 0; -} - -int request_irq(unsigned int irq, - irq_handler_t handler, - unsigned long flags, const char *devname, void *dev_id) -{ - struct irq_data *node; - int res; - - node = new_irq_node(); - if (!node) - return -ENOMEM; - - node->irq = irq; - node->handler = handler; - node->flags = flags; - node->dev_id = dev_id; - node->devname = devname; - - res = m68k_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_chip *contr; - struct irq_data **p, *node; - unsigned long flags; - - if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { - printk("%s: Incorrect IRQ %d\n", __func__, irq); - return; - } - - local_irq_save(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->irq_shutdown) - contr->irq_shutdown(node); - else - contr->irq_disable(node); - } - - local_irq_restore(flags); -} - -EXPORT_SYMBOL(free_irq); - -void enable_irq(unsigned int irq) -{ - struct irq_chip *contr; - unsigned long flags; - - if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { - printk("%s: Incorrect IRQ %d\n", - __func__, irq); - return; - } - - local_irq_save(flags); - if (irq_depth[irq]) { - if (!--irq_depth[irq]) { - if (contr->irq_enable) - contr->irq_enable(irq_list[irq]); - } - } else - WARN_ON(1); - local_irq_restore(flags); -} - -EXPORT_SYMBOL(enable_irq); - -void disable_irq(unsigned int irq) -{ - struct irq_chip *contr; - unsigned long flags; - - if (irq >= NR_IRQS || !(contr = irq_chip[irq])) { - printk("%s: Incorrect IRQ %d\n", - __func__, irq); - return; - } - - local_irq_save(flags); - if (!irq_depth[irq]++) { - if (contr->irq_disable) - contr->irq_disable(irq_list[irq]); - } - local_irq_restore(flags); -} - -EXPORT_SYMBOL(disable_irq); - -void disable_irq_nosync(unsigned int irq) __attribute__((alias("disable_irq"))); - -EXPORT_SYMBOL(disable_irq_nosync); - -#endif /* !CONFIG_GENERIC_HARDIRQS */ - unsigned int m68k_irq_startup_irq(unsigned int irq) { if (irq <= IRQ_AUTO_7) @@ -377,36 +164,6 @@ void m68k_irq_shutdown(struct irq_data *data) } -#ifndef CONFIG_GENERIC_HARDIRQS - -/* - * 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); -#endif /* CONFIG_GENERIC_HARDIRQS */ - unsigned int irq_canonicalize(unsigned int irq) { #ifdef CONFIG_Q40 @@ -418,63 +175,9 @@ unsigned int irq_canonicalize(unsigned int irq) EXPORT_SYMBOL(irq_canonicalize); -#ifndef CONFIG_GENERIC_HARDIRQS -void generic_handle_irq(unsigned int irq) -{ - struct irq_data *node; - kstat_cpu(0).irqs[irq]++; - node = irq_list[irq]; - do { - node->handler(irq, node->dev_id); - node = node->next; - } while (node); -} - -asmlinkage void do_IRQ(int irq, struct pt_regs *regs) -{ - struct pt_regs *old_regs; - old_regs = set_irq_regs(regs); - generic_handle_irq(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); -} - -int show_interrupts(struct seq_file *p, void *v) -{ - struct irq_chip *contr; - struct irq_data *node; - int i = *(loff_t *) v; - - /* autovector interrupts */ - if (irq_list[i]) { - contr = irq_chip[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 - -#else /* CONFIG_GENERIC_HARDIRQS */ asmlinkage void handle_badint(struct pt_regs *regs) { atomic_inc(&irq_err_count); pr_warn("unexpected interrupt from %u\n", regs->vector); } - -#endif /* CONFIG_GENERIC_HARDIRQS */ diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index 425144cbfa7d..b55ead284971 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -11,9 +11,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#endif #include #include @@ -56,7 +54,6 @@ void __init baboon_init(void) * Baboon interrupt handler. This works a lot like a VIA. */ -#ifdef CONFIG_GENERIC_HARDIRQS static void baboon_irq(unsigned int irq, struct irq_desc *desc) { int irq_bit, irq_num; @@ -88,39 +85,6 @@ static void baboon_irq(unsigned int irq, struct irq_desc *desc) baboon->mb_ifr &= ~events; #endif } -#else -static irqreturn_t baboon_irq(int irq, void *dev_id) -{ - int irq_bit, irq_num; - unsigned char events; - -#ifdef DEBUG_IRQS - printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X\n", - (uint) baboon->mb_control, (uint) baboon->mb_ifr, - (uint) baboon->mb_status); -#endif - - if (!(events = baboon->mb_ifr & 0x07)) - return IRQ_NONE; - - irq_num = IRQ_BABOON_0; - irq_bit = 1; - do { - if (events & irq_bit) { - baboon->mb_ifr &= ~irq_bit; - generic_handle_irq(irq_num); - } - irq_bit <<= 1; - irq_num++; - } while(events >= irq_bit); -#if 0 - if (baboon->mb_ifr & 0x02) macide_ack_intr(NULL); - /* for now we need to smash all interrupts */ - baboon->mb_ifr &= ~events; -#endif - return IRQ_HANDLED; -} -#endif /* * Register the Baboon interrupt dispatcher on nubus slot $C. @@ -129,12 +93,7 @@ static irqreturn_t baboon_irq(int irq, void *dev_id) void __init baboon_register_interrupts(void) { baboon_disabled = 0; -#ifdef CONFIG_GENERIC_HARDIRQS irq_set_chained_handler(IRQ_NUBUS_C, baboon_irq); -#else - if (request_irq(IRQ_NUBUS_C, baboon_irq, 0, "baboon", (void *)baboon)) - pr_err("Couldn't register baboon interrupt\n"); -#endif } /* diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c index cc784c2ff6e8..a4c82dab9ff1 100644 --- a/arch/m68k/mac/oss.c +++ b/arch/m68k/mac/oss.c @@ -19,9 +19,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#endif #include #include @@ -32,11 +30,7 @@ int oss_present; volatile struct mac_oss *oss; -#ifdef CONFIG_GENERIC_HARDIRQS extern void via1_irq(unsigned int irq, struct irq_desc *desc); -#else -extern irqreturn_t via1_irq(int, void *); -#endif /* * Initialize the OSS @@ -76,7 +70,6 @@ void __init oss_nubus_init(void) * and SCSI; everything else is routed to its own autovector IRQ. */ -#ifdef CONFIG_GENERIC_HARDIRQS static void oss_irq(unsigned int irq, struct irq_desc *desc) { int events; @@ -103,35 +96,6 @@ static void oss_irq(unsigned int irq, struct irq_desc *desc) /* FIXME: error check here? */ } } -#else -static irqreturn_t oss_irq(int irq, void *dev_id) -{ - int events; - - events = oss->irq_pending & (OSS_IP_SOUND|OSS_IP_SCSI); - if (!events) - return IRQ_NONE; - -#ifdef DEBUG_IRQS - if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) { - printk("oss_irq: irq %d events = 0x%04X\n", irq, - (int) oss->irq_pending); - } -#endif - /* FIXME: how do you clear a pending IRQ? */ - - if (events & OSS_IP_SOUND) { - oss->irq_pending &= ~OSS_IP_SOUND; - /* FIXME: call sound handler */ - } else if (events & OSS_IP_SCSI) { - oss->irq_pending &= ~OSS_IP_SCSI; - generic_handle_irq(IRQ_MAC_SCSI); - } else { - /* FIXME: error check here? */ - } - return IRQ_HANDLED; -} -#endif /* * Nubus IRQ handler, OSS style @@ -139,7 +103,6 @@ static irqreturn_t oss_irq(int irq, void *dev_id) * Unlike the VIA/RBV this is on its own autovector interrupt level. */ -#ifdef CONFIG_GENERIC_HARDIRQS static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc) { int events, irq_bit, i; @@ -166,35 +129,6 @@ static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc) } } while(events & (irq_bit - 1)); } -#else -static irqreturn_t oss_nubus_irq(int irq, void *dev_id) -{ - int events, irq_bit, i; - - events = oss->irq_pending & OSS_IP_NUBUS; - if (!events) - return IRQ_NONE; - -#ifdef DEBUG_NUBUS_INT - if (console_loglevel > 7) { - printk("oss_nubus_irq: events = 0x%04X\n", events); - } -#endif - /* There are only six slots on the OSS, not seven */ - - i = 6; - irq_bit = 0x40; - do { - --i; - irq_bit >>= 1; - if (events & irq_bit) { - oss->irq_pending &= ~irq_bit; - generic_handle_irq(NUBUS_SOURCE_BASE + i); - } - } while(events & (irq_bit - 1)); - return IRQ_HANDLED; -} -#endif /* * Register the OSS and NuBus interrupt dispatchers. @@ -202,22 +136,10 @@ static irqreturn_t oss_nubus_irq(int irq, void *dev_id) void __init oss_register_interrupts(void) { -#ifdef CONFIG_GENERIC_HARDIRQS 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); -#else /* !CONFIG_GENERIC_HARDIRQS */ - if (request_irq(OSS_IRQLEV_SCSI, oss_irq, 0, "scsi", (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "scsi"); - if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, 0, "nubus", - (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "nubus"); - if (request_irq(OSS_IRQLEV_SOUND, oss_irq, 0, "sound", (void *)oss)) - pr_err("Couldn't register %s interrupt\n", "sound"); - if (request_irq(OSS_IRQLEV_VIA1, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); -#endif /* !CONFIG_GENERIC_HARDIRQS */ } /* diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c index 52840b8c03b8..e6c2d20f328d 100644 --- a/arch/m68k/mac/psc.c +++ b/arch/m68k/mac/psc.c @@ -18,9 +18,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#endif #include #include @@ -116,7 +114,6 @@ void __init psc_init(void) * PSC interrupt handler. It's a lot like the VIA interrupt handler. */ -#ifdef CONFIG_GENERIC_HARDIRQS static void psc_irq(unsigned int irq, struct irq_desc *desc) { unsigned int offset = (unsigned int)irq_desc_get_handler_data(desc); @@ -145,36 +142,6 @@ static void psc_irq(unsigned int irq, struct irq_desc *desc) irq_bit <<= 1; } while (events >= irq_bit); } -#else -static irqreturn_t psc_irq(int irq, void *dev_id) -{ - int pIFR = pIFRbase + ((int) dev_id); - int pIER = pIERbase + ((int) dev_id); - int irq_num; - unsigned char irq_bit, events; - -#ifdef DEBUG_IRQS - printk("psc_irq: irq %d pIFR = 0x%02X pIER = 0x%02X\n", - irq, (int) psc_read_byte(pIFR), (int) psc_read_byte(pIER)); -#endif - - events = psc_read_byte(pIFR) & psc_read_byte(pIER) & 0xF; - if (!events) - return IRQ_NONE; - - irq_num = irq << 3; - irq_bit = 1; - do { - if (events & irq_bit) { - psc_write_byte(pIFR, irq_bit); - generic_handle_irq(irq_num); - } - irq_num++; - irq_bit <<= 1; - } while (events >= irq_bit); - return IRQ_HANDLED; -} -#endif /* * Register the PSC interrupt dispatchers for autovector interrupts 3-6. @@ -182,7 +149,6 @@ static irqreturn_t psc_irq(int irq, void *dev_id) void __init psc_register_interrupts(void) { -#ifdef CONFIG_GENERIC_HARDIRQS irq_set_chained_handler(IRQ_AUTO_3, psc_irq); irq_set_handler_data(IRQ_AUTO_3, (void *)0x30); irq_set_chained_handler(IRQ_AUTO_4, psc_irq); @@ -191,16 +157,6 @@ void __init psc_register_interrupts(void) irq_set_handler_data(IRQ_AUTO_5, (void *)0x50); irq_set_chained_handler(IRQ_AUTO_6, psc_irq); irq_set_handler_data(IRQ_AUTO_6, (void *)0x60); -#else /* !CONFIG_GENERIC_HARDIRQS */ - if (request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30)) - pr_err("Couldn't register psc%d interrupt\n", 3); - if (request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40)) - pr_err("Couldn't register psc%d interrupt\n", 4); - if (request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50)) - pr_err("Couldn't register psc%d interrupt\n", 5); - if (request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60)) - pr_err("Couldn't register psc%d interrupt\n", 6); -#endif /* !CONFIG_GENERIC_HARDIRQS */ } void psc_irq_enable(int irq) { diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c index b8156ac496a0..f1600ad26621 100644 --- a/arch/m68k/mac/via.c +++ b/arch/m68k/mac/via.c @@ -28,9 +28,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#endif #include #include @@ -417,7 +415,6 @@ void __init via_nubus_init(void) * via6522.c :-), disable/pending masks added. */ -#ifdef CONFIG_GENERIC_HARDIRQS void via1_irq(unsigned int irq, struct irq_desc *desc) { int irq_num; @@ -459,58 +456,12 @@ static void via2_irq(unsigned int irq, struct irq_desc *desc) irq_bit <<= 1; } while (events >= irq_bit); } -#else -irqreturn_t via1_irq(int irq, void *dev_id) -{ - int irq_num; - unsigned char irq_bit, events; - - events = via1[vIFR] & via1[vIER] & 0x7F; - if (!events) - return IRQ_NONE; - - irq_num = VIA1_SOURCE_BASE; - irq_bit = 1; - do { - if (events & irq_bit) { - via1[vIFR] = irq_bit; - generic_handle_irq(irq_num); - } - ++irq_num; - irq_bit <<= 1; - } while (events >= irq_bit); - return IRQ_HANDLED; -} - -irqreturn_t via2_irq(int irq, void *dev_id) -{ - int irq_num; - unsigned char irq_bit, events; - - events = via2[gIFR] & via2[gIER] & 0x7F; - if (!events) - return IRQ_NONE; - - irq_num = VIA2_SOURCE_BASE; - irq_bit = 1; - do { - if (events & irq_bit) { - via2[gIFR] = irq_bit | rbv_clear; - generic_handle_irq(irq_num); - } - ++irq_num; - irq_bit <<= 1; - } while (events >= irq_bit); - return IRQ_HANDLED; -} -#endif /* * Dispatch Nubus interrupts. We are called as a secondary dispatch by the * VIA2 dispatcher as a fast interrupt handler. */ -#ifdef CONFIG_GENERIC_HARDIRQS void via_nubus_irq(unsigned int irq, struct irq_desc *desc) { int slot_irq; @@ -545,43 +496,6 @@ void via_nubus_irq(unsigned int irq, struct irq_desc *desc) events &= ~via2[vDirA]; } while (events); } -#else -irqreturn_t via_nubus_irq(int irq, void *dev_id) -{ - int slot_irq; - unsigned char slot_bit, events; - - events = ~via2[gBufA] & 0x7F; - if (rbv_present) - events &= via2[rSIER]; - else - events &= ~via2[vDirA]; - if (!events) - return IRQ_NONE; - - do { - slot_irq = IRQ_NUBUS_F; - slot_bit = 0x40; - do { - if (events & slot_bit) { - events &= ~slot_bit; - generic_handle_irq(slot_irq); - } - --slot_irq; - slot_bit >>= 1; - } while (events); - - /* clear the CA1 interrupt and make certain there's no more. */ - via2[gIFR] = 0x02 | rbv_clear; - events = ~via2[gBufA] & 0x7F; - if (rbv_present) - events &= via2[rSIER]; - else - events &= ~via2[vDirA]; - } while (events); - return IRQ_HANDLED; -} -#endif /* * Register the interrupt dispatchers for VIA or RBV machines only. @@ -589,7 +503,6 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id) void __init via_register_interrupts(void) { -#ifdef CONFIG_GENERIC_HARDIRQS if (via_alt_mapping) { /* software interrupt */ irq_set_chained_handler(IRQ_AUTO_1, via1_irq); @@ -600,23 +513,6 @@ void __init via_register_interrupts(void) } irq_set_chained_handler(IRQ_AUTO_2, via2_irq); irq_set_chained_handler(IRQ_MAC_NUBUS, via_nubus_irq); -#else - if (via_alt_mapping) { - if (request_irq(IRQ_AUTO_1, via1_irq, 0, "software", - (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "software"); - if (request_irq(IRQ_AUTO_6, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); - } else { - if (request_irq(IRQ_AUTO_1, via1_irq, 0, "via1", (void *)via1)) - pr_err("Couldn't register %s interrupt\n", "via1"); - } - if (request_irq(IRQ_AUTO_2, via2_irq, 0, "via2", (void *)via2)) - pr_err("Couldn't register %s interrupt\n", "via2"); - if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq, 0, "nubus", - (void *)via2)) - pr_err("Couldn't register %s interrupt\n", "nubus"); -#endif } void via_irq_enable(int irq) { diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c index f1e5288f043f..2b888491f29a 100644 --- a/arch/m68k/q40/q40ints.c +++ b/arch/m68k/q40/q40ints.c @@ -15,11 +15,7 @@ #include #include #include -#ifdef CONFIG_GENERIC_HARDIRQS #include -#else -#include -#endif #include #include @@ -329,15 +325,3 @@ void q40_irq_disable(struct irq_data *data) printk("disable_irq nesting count %d\n",mext_disabled); } } - -#ifndef CONFIG_GENERIC_HARDIRQS -unsigned long q40_probe_irq_on(void) -{ - printk("irq probing not working - reconfigure the driver to avoid this\n"); - return -1; -} -int q40_probe_irq_off(unsigned long irqs) -{ - return -1; -} -#endif diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 626b601931e9..7eb378195cf7 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -53,9 +53,6 @@ static irqreturn_t sun3_int7(int irq, void *dev_id) { unsigned int cnt; -#ifndef CONFIG_GENERIC_HARDIRQS - *sun3_intreg |= (1 << irq); -#endif cnt = kstat_irqs_cpu(irq, 0); if (!(cnt % 2000)) sun3_leds(led_pattern[cnt % 16000 / 2000]); @@ -69,9 +66,6 @@ static irqreturn_t sun3_int5(int irq, void *dev_id) #ifdef CONFIG_SUN3 intersil_clear(); #endif -#ifndef CONFIG_GENERIC_HARDIRQS - *sun3_intreg |= (1 << irq); -#endif #ifdef CONFIG_SUN3 intersil_clear(); #endif @@ -89,15 +83,6 @@ static irqreturn_t sun3_vec255(int irq, void *dev_id) return IRQ_HANDLED; } -#ifndef CONFIG_GENERIC_HARDIRQS -static void sun3_inthandle(unsigned int irq, struct pt_regs *fp) -{ - *sun3_intreg &= ~(1 << irq); - - do_IRQ(irq, fp); -} -#endif - static void sun3_irq_enable(struct irq_data *data) { sun3_enable_irq(data->irq); @@ -114,19 +99,14 @@ static struct irq_chip sun3_irq_chip = { .irq_shutdown = m68k_irq_shutdown, .irq_enable = sun3_irq_enable, .irq_disable = sun3_irq_disable, -#ifdef CONFIG_GENERIC_HARDIRQS .irq_mask = sun3_irq_disable, .irq_unmask = sun3_irq_enable, -#endif }; void __init sun3_init_IRQ(void) { *sun3_intreg = 1; -#ifndef CONFIG_GENERIC_HARDIRQS - m68k_setup_auto_interrupt(sun3_inthandle); -#endif m68k_setup_irq_controller(&sun3_irq_chip, handle_level_irq, IRQ_AUTO_1, 7); m68k_setup_user_interrupt(VEC_USER, 128, NULL); From f30a6484f1bcb410d0af0c24f34b8e3d92682a05 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sun, 11 Sep 2011 11:54:50 +0200 Subject: [PATCH 28/29] m68k/irq: Remove obsolete support for user vector interrupt fixups It was used on Apollo only, before its conversion to genirq. Signed-off-by: Geert Uytterhoeven --- arch/m68k/apollo/dn_ints.c | 2 +- arch/m68k/atari/ataints.c | 2 +- arch/m68k/bvme6000/config.c | 2 +- arch/m68k/include/asm/irq.h | 4 +--- arch/m68k/kernel/entry_mm.S | 3 +-- arch/m68k/kernel/ints.c | 11 ++--------- arch/m68k/mvme147/config.c | 2 +- arch/m68k/mvme16x/config.c | 2 +- arch/m68k/sun3/sun3ints.c | 2 +- 9 files changed, 10 insertions(+), 20 deletions(-) diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c index b7d0aa37d199..17be1e7e2df2 100644 --- a/arch/m68k/apollo/dn_ints.c +++ b/arch/m68k/apollo/dn_ints.c @@ -41,7 +41,7 @@ static struct irq_chip apollo_irq_chip = { void __init dn_init_IRQ(void) { - m68k_setup_user_interrupt(VEC_USER + 96, 16, NULL); + m68k_setup_user_interrupt(VEC_USER + 96, 16); m68k_setup_irq_controller(&apollo_irq_chip, handle_fasteoi_irq, IRQ_APOLLO, 16); } diff --git a/arch/m68k/atari/ataints.c b/arch/m68k/atari/ataints.c index af544557dd1d..6d196dadfdbc 100644 --- a/arch/m68k/atari/ataints.c +++ b/arch/m68k/atari/ataints.c @@ -137,7 +137,7 @@ static struct irq_chip atari_irq_chip = { void __init atari_init_IRQ(void) { - m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER, NULL); + 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); diff --git a/arch/m68k/bvme6000/config.c b/arch/m68k/bvme6000/config.c index 1edd95095cb4..81286476f740 100644 --- a/arch/m68k/bvme6000/config.c +++ b/arch/m68k/bvme6000/config.c @@ -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) diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h index 94349a525bc2..6198df5ff245 100644 --- a/arch/m68k/include/asm/irq.h +++ b/arch/m68k/include/asm/irq.h @@ -70,9 +70,7 @@ 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, - 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), diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry_mm.S index f5927d0927b4..c713f514843d 100644 --- a/arch/m68k/kernel/entry_mm.S +++ b/arch/m68k/kernel/entry_mm.S @@ -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) @@ -240,7 +240,6 @@ user_irqvec_fixup = . + 2 movel %sp,%sp@- movel %d0,%sp@- | put vector # on stack -user_irqhandler_fixup = . + 2 jsr do_IRQ | process the IRQ addql #8,%sp | pop parameters off stack diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c index e2b056b3a314..74fefac00899 100644 --- a/arch/m68k/kernel/ints.c +++ b/arch/m68k/kernel/ints.c @@ -28,7 +28,6 @@ #endif extern u32 auto_irqhandler_fixup[]; -extern u32 user_irqhandler_fixup[]; extern u16 user_irqvec_fixup[]; static int m68k_first_user_vec; @@ -91,16 +90,12 @@ 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 do_IRQ(), 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; @@ -109,8 +104,6 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, for (i = 0; i < cnt; i++) irq_set_chip(IRQ_USER + i, &user_irq_chip); *user_irqvec_fixup = vec - IRQ_USER; - if (handler) - *user_irqhandler_fixup = (u32)handler; flush_icache(); } diff --git a/arch/m68k/mvme147/config.c b/arch/m68k/mvme147/config.c index 01f2adf3f19f..5de924ef42ed 100644 --- a/arch/m68k/mvme147/config.c +++ b/arch/m68k/mvme147/config.c @@ -81,7 +81,7 @@ static void mvme147_get_model(char *model) void __init mvme147_init_IRQ(void) { - m68k_setup_user_interrupt(VEC_USER, 192, NULL); + m68k_setup_user_interrupt(VEC_USER, 192); } void __init config_mvme147(void) diff --git a/arch/m68k/mvme16x/config.c b/arch/m68k/mvme16x/config.c index 0b28e2621653..31a66d99cbca 100644 --- a/arch/m68k/mvme16x/config.c +++ b/arch/m68k/mvme16x/config.c @@ -117,7 +117,7 @@ static void mvme16x_get_hardware_list(struct seq_file *m) static void __init mvme16x_init_IRQ (void) { - m68k_setup_user_interrupt(VEC_USER, 192, NULL); + m68k_setup_user_interrupt(VEC_USER, 192); } #define pcc2chip ((volatile u_char *)0xfff42000) diff --git a/arch/m68k/sun3/sun3ints.c b/arch/m68k/sun3/sun3ints.c index 7eb378195cf7..78b60f53e90a 100644 --- a/arch/m68k/sun3/sun3ints.c +++ b/arch/m68k/sun3/sun3ints.c @@ -109,7 +109,7 @@ void __init sun3_init_IRQ(void) m68k_setup_irq_controller(&sun3_irq_chip, handle_level_irq, IRQ_AUTO_1, 7); - m68k_setup_user_interrupt(VEC_USER, 128, NULL); + m68k_setup_user_interrupt(VEC_USER, 128); if (request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL)) pr_err("Couldn't register %s interrupt\n", "int5"); From 2690e2148b730c53acb8797821468d0ea1673f25 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Sun, 11 Sep 2011 23:40:50 +1000 Subject: [PATCH 29/29] m68k/mac: Remove mac_irq_{en,dis}able() wrappers Signed-off-by: Finn Thain Signed-off-by: Geert Uytterhoeven --- arch/m68k/include/asm/macintosh.h | 2 ++ arch/m68k/mac/baboon.c | 7 ++----- arch/m68k/mac/macints.c | 25 +++++++------------------ 3 files changed, 11 insertions(+), 23 deletions(-) diff --git a/arch/m68k/include/asm/macintosh.h b/arch/m68k/include/asm/macintosh.h index c2a1c5eac1a6..12ebe43b008b 100644 --- a/arch/m68k/include/asm/macintosh.h +++ b/arch/m68k/include/asm/macintosh.h @@ -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 diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index b55ead284971..b403924a1cad 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -21,9 +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; @@ -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) diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c index 98497d288a9b..ba220b70ab8c 100644 --- a/arch/m68k/mac/macints.c +++ b/arch/m68k/mac/macints.c @@ -190,19 +190,6 @@ 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 void mac_irq_enable(struct irq_data *data) -{ - mac_enable_irq(data->irq); -} - -static void mac_irq_disable(struct irq_data *data) -{ - mac_disable_irq(data->irq); -} - static struct irq_chip mac_irq_chip = { .name = "mac", .irq_enable = mac_irq_enable, @@ -250,16 +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) { @@ -292,8 +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) {