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yaml
---
r: 62458
b: refs/heads/master
c: 32231a6
h: refs/heads/master
v: v3
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Al Viro authored and David S. Miller committed Jul 22, 2007
1 parent 6cc0048 commit d12a0fb
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Showing 13 changed files with 152 additions and 137 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 196bffa5dc3181897bd32e41415ec0db8dbab5e7
refs/heads/master: 32231a66b4e1b649c346dc76b7d191f7e64a663a
2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/irq.c
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Expand Up @@ -47,6 +47,8 @@
#include <asm/cacheflush.h>
#include <asm/irq_regs.h>

#include "irq.h"

#ifdef CONFIG_SMP
#define SMP_NOP2 "nop; nop;\n\t"
#define SMP_NOP3 "nop; nop; nop;\n\t"
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48 changes: 48 additions & 0 deletions trunk/arch/sparc/kernel/irq.h
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@@ -0,0 +1,48 @@
#include <asm/btfixup.h>

BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
BTFIXUPDEF_CALL(void, clear_clock_irq, void)
BTFIXUPDEF_CALL(void, clear_profile_irq, int)
BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)

static inline void disable_pil_irq(unsigned int irq)
{
BTFIXUP_CALL(disable_pil_irq)(irq);
}

static inline void enable_pil_irq(unsigned int irq)
{
BTFIXUP_CALL(enable_pil_irq)(irq);
}

static inline void clear_clock_irq(void)
{
BTFIXUP_CALL(clear_clock_irq)();
}

static inline void clear_profile_irq(int irq)
{
BTFIXUP_CALL(clear_profile_irq)(irq);
}

static inline void load_profile_irq(int cpu, int limit)
{
BTFIXUP_CALL(load_profile_irq)(cpu, limit);
}

extern void (*sparc_init_timers)(irq_handler_t lvl10_irq);

extern void claim_ticker14(irq_handler_t irq_handler,
int irq,
unsigned int timeout);

#ifdef CONFIG_SMP
BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
BTFIXUPDEF_CALL(void, set_irq_udt, int)

#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
#endif
1 change: 1 addition & 0 deletions trunk/arch/sparc/kernel/pcic.c
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Expand Up @@ -36,6 +36,7 @@
#include <asm/uaccess.h>
#include <asm/irq_regs.h>

#include "irq.h"

/*
* I studied different documents and many live PROMs both from 2.30
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2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/smp.c
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Expand Up @@ -33,6 +33,8 @@
#include <asm/tlbflush.h>
#include <asm/cpudata.h>

#include "irq.h"

int smp_num_cpus = 1;
volatile unsigned long cpu_callin_map[NR_CPUS] __initdata = {0,};
unsigned char boot_cpu_id = 0;
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15 changes: 15 additions & 0 deletions trunk/arch/sparc/kernel/sun4c_irq.c
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Expand Up @@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/init.h>
#include "irq.h"

#include <asm/ptrace.h>
#include <asm/processor.h>
Expand All @@ -40,6 +41,20 @@ static struct resource sun4c_timer_eb = { "sun4c_timer" };
static struct resource sun4c_intr_eb = { "sun4c_intr" };
#endif

/*
* Bit field defines for the interrupt registers on various
* Sparc machines.
*/

/* The sun4c interrupt register. */
#define SUN4C_INT_ENABLE 0x01 /* Allow interrupts. */
#define SUN4C_INT_E14 0x80 /* Enable level 14 IRQ. */
#define SUN4C_INT_E10 0x20 /* Enable level 10 IRQ. */
#define SUN4C_INT_E8 0x10 /* Enable level 8 IRQ. */
#define SUN4C_INT_E6 0x08 /* Enable level 6 IRQ. */
#define SUN4C_INT_E4 0x04 /* Enable level 4 IRQ. */
#define SUN4C_INT_E1 0x02 /* Enable level 1 IRQ. */

/* Pointer to the interrupt enable byte
*
* Dave Redman (djhr@tadpole.co.uk)
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2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/sun4d_irq.c
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Expand Up @@ -39,6 +39,8 @@
#include <asm/cacheflush.h>
#include <asm/irq_regs.h>

#include "irq.h"

/* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */
/* #define DISTRIBUTE_IRQS */

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1 change: 1 addition & 0 deletions trunk/arch/sparc/kernel/sun4d_smp.c
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Expand Up @@ -36,6 +36,7 @@
#include <asm/cacheflush.h>
#include <asm/cpudata.h>

#include "irq.h"
#define IRQ_CROSS_CALL 15

extern ctxd_t *srmmu_ctx_table_phys;
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74 changes: 74 additions & 0 deletions trunk/arch/sparc/kernel/sun4m_irq.c
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Expand Up @@ -38,11 +38,85 @@
#include <asm/sbus.h>
#include <asm/cacheflush.h>

#include "irq.h"

/* On the sun4m, just like the timers, we have both per-cpu and master
* interrupt registers.
*/

/* These registers are used for sending/receiving irqs from/to
* different cpu's.
*/
struct sun4m_intreg_percpu {
unsigned int tbt; /* Interrupts still pending for this cpu. */

/* These next two registers are WRITE-ONLY and are only
* "on bit" sensitive, "off bits" written have NO affect.
*/
unsigned int clear; /* Clear this cpus irqs here. */
unsigned int set; /* Set this cpus irqs here. */
unsigned char space[PAGE_SIZE - 12];
};

/*
* djhr
* Actually the clear and set fields in this struct are misleading..
* according to the SLAVIO manual (and the same applies for the SEC)
* the clear field clears bits in the mask which will ENABLE that IRQ
* the set field sets bits in the mask to DISABLE the IRQ.
*
* Also the undirected_xx address in the SLAVIO is defined as
* RESERVED and write only..
*
* DAVEM_NOTE: The SLAVIO only specifies behavior on uniprocessor
* sun4m machines, for MP the layout makes more sense.
*/
struct sun4m_intregs {
struct sun4m_intreg_percpu cpu_intregs[SUN4M_NCPUS];
unsigned int tbt; /* IRQ's that are still pending. */
unsigned int irqs; /* Master IRQ bits. */

/* Again, like the above, two these registers are WRITE-ONLY. */
unsigned int clear; /* Clear master IRQ's by setting bits here. */
unsigned int set; /* Set master IRQ's by setting bits here. */

/* This register is both READ and WRITE. */
unsigned int undirected_target; /* Which cpu gets undirected irqs. */
};

static unsigned long dummy;

struct sun4m_intregs *sun4m_interrupts;
unsigned long *irq_rcvreg = &dummy;

/* Dave Redman (djhr@tadpole.co.uk)
* The sun4m interrupt registers.
*/
#define SUN4M_INT_ENABLE 0x80000000
#define SUN4M_INT_E14 0x00000080
#define SUN4M_INT_E10 0x00080000

#define SUN4M_HARD_INT(x) (0x000000001 << (x))
#define SUN4M_SOFT_INT(x) (0x000010000 << (x))

#define SUN4M_INT_MASKALL 0x80000000 /* mask all interrupts */
#define SUN4M_INT_MODULE_ERR 0x40000000 /* module error */
#define SUN4M_INT_M2S_WRITE 0x20000000 /* write buffer error */
#define SUN4M_INT_ECC 0x10000000 /* ecc memory error */
#define SUN4M_INT_FLOPPY 0x00400000 /* floppy disk */
#define SUN4M_INT_MODULE 0x00200000 /* module interrupt */
#define SUN4M_INT_VIDEO 0x00100000 /* onboard video */
#define SUN4M_INT_REALTIME 0x00080000 /* system timer */
#define SUN4M_INT_SCSI 0x00040000 /* onboard scsi */
#define SUN4M_INT_AUDIO 0x00020000 /* audio/isdn */
#define SUN4M_INT_ETHERNET 0x00010000 /* onboard ethernet */
#define SUN4M_INT_SERIAL 0x00008000 /* serial ports */
#define SUN4M_INT_KBDMS 0x00004000 /* keyboard/mouse */
#define SUN4M_INT_SBUSBITS 0x00003F80 /* sbus int bits */

#define SUN4M_INT_SBUS(x) (1 << (x+7))
#define SUN4M_INT_VME(x) (1 << (x))

/* These tables only apply for interrupts greater than 15..
*
* any intr value below 0x10 is considered to be a soft-int
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2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/sun4m_smp.c
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@
#include <asm/oplib.h>
#include <asm/cpudata.h>

#include "irq.h"

#define IRQ_RESCHEDULE 13
#define IRQ_STOP_CPU 14
#define IRQ_CROSS_CALL 15
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2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/tick14.c
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Expand Up @@ -25,6 +25,8 @@
#include <asm/irq.h>
#include <asm/io.h>

#include "irq.h"

extern unsigned long lvl14_save[5];
static unsigned long *linux_lvl14 = NULL;
static unsigned long obp_lvl14[4];
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2 changes: 2 additions & 0 deletions trunk/arch/sparc/kernel/time.c
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Expand Up @@ -44,6 +44,8 @@
#include <asm/of_device.h>
#include <asm/irq_regs.h>

#include "irq.h"

DEFINE_SPINLOCK(rtc_lock);
enum sparc_clock_type sp_clock_typ;
DEFINE_SPINLOCK(mostek_lock);
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136 changes: 0 additions & 136 deletions trunk/include/asm-sparc/irq.h
Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,6 @@
#include <asm/system.h> /* For SUN4M_NCPUS */
#include <asm/btfixup.h>

#define __irq_ino(irq) irq
#define __irq_pil(irq) irq

#define NR_IRQS 16

#define irq_canonicalize(irq) (irq)
Expand All @@ -30,11 +27,6 @@
*/
BTFIXUPDEF_CALL(void, disable_irq, unsigned int)
BTFIXUPDEF_CALL(void, enable_irq, unsigned int)
BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
BTFIXUPDEF_CALL(void, clear_clock_irq, void)
BTFIXUPDEF_CALL(void, clear_profile_irq, int)
BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)

static inline void disable_irq_nosync(unsigned int irq)
{
Expand All @@ -51,134 +43,6 @@ static inline void enable_irq(unsigned int irq)
BTFIXUP_CALL(enable_irq)(irq);
}

static inline void disable_pil_irq(unsigned int irq)
{
BTFIXUP_CALL(disable_pil_irq)(irq);
}

static inline void enable_pil_irq(unsigned int irq)
{
BTFIXUP_CALL(enable_pil_irq)(irq);
}

static inline void clear_clock_irq(void)
{
BTFIXUP_CALL(clear_clock_irq)();
}

static inline void clear_profile_irq(int irq)
{
BTFIXUP_CALL(clear_profile_irq)(irq);
}

static inline void load_profile_irq(int cpu, int limit)
{
BTFIXUP_CALL(load_profile_irq)(cpu, limit);
}

extern void (*sparc_init_timers)(irq_handler_t lvl10_irq);
extern void claim_ticker14(irq_handler_t irq_handler,
int irq,
unsigned int timeout);

#ifdef CONFIG_SMP
BTFIXUPDEF_CALL(void, set_cpu_int, int, int)
BTFIXUPDEF_CALL(void, clear_cpu_int, int, int)
BTFIXUPDEF_CALL(void, set_irq_udt, int)

#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level)
#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level)
#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu)
#endif

extern int request_fast_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, __const__ char *devname);

/* On the sun4m, just like the timers, we have both per-cpu and master
* interrupt registers.
*/

/* These registers are used for sending/receiving irqs from/to
* different cpu's.
*/
struct sun4m_intreg_percpu {
unsigned int tbt; /* Interrupts still pending for this cpu. */

/* These next two registers are WRITE-ONLY and are only
* "on bit" sensitive, "off bits" written have NO affect.
*/
unsigned int clear; /* Clear this cpus irqs here. */
unsigned int set; /* Set this cpus irqs here. */
unsigned char space[PAGE_SIZE - 12];
};

/*
* djhr
* Actually the clear and set fields in this struct are misleading..
* according to the SLAVIO manual (and the same applies for the SEC)
* the clear field clears bits in the mask which will ENABLE that IRQ
* the set field sets bits in the mask to DISABLE the IRQ.
*
* Also the undirected_xx address in the SLAVIO is defined as
* RESERVED and write only..
*
* DAVEM_NOTE: The SLAVIO only specifies behavior on uniprocessor
* sun4m machines, for MP the layout makes more sense.
*/
struct sun4m_intregs {
struct sun4m_intreg_percpu cpu_intregs[SUN4M_NCPUS];
unsigned int tbt; /* IRQ's that are still pending. */
unsigned int irqs; /* Master IRQ bits. */

/* Again, like the above, two these registers are WRITE-ONLY. */
unsigned int clear; /* Clear master IRQ's by setting bits here. */
unsigned int set; /* Set master IRQ's by setting bits here. */

/* This register is both READ and WRITE. */
unsigned int undirected_target; /* Which cpu gets undirected irqs. */
};

extern struct sun4m_intregs *sun4m_interrupts;

/*
* Bit field defines for the interrupt registers on various
* Sparc machines.
*/

/* The sun4c interrupt register. */
#define SUN4C_INT_ENABLE 0x01 /* Allow interrupts. */
#define SUN4C_INT_E14 0x80 /* Enable level 14 IRQ. */
#define SUN4C_INT_E10 0x20 /* Enable level 10 IRQ. */
#define SUN4C_INT_E8 0x10 /* Enable level 8 IRQ. */
#define SUN4C_INT_E6 0x08 /* Enable level 6 IRQ. */
#define SUN4C_INT_E4 0x04 /* Enable level 4 IRQ. */
#define SUN4C_INT_E1 0x02 /* Enable level 1 IRQ. */

/* Dave Redman (djhr@tadpole.co.uk)
* The sun4m interrupt registers.
*/
#define SUN4M_INT_ENABLE 0x80000000
#define SUN4M_INT_E14 0x00000080
#define SUN4M_INT_E10 0x00080000

#define SUN4M_HARD_INT(x) (0x000000001 << (x))
#define SUN4M_SOFT_INT(x) (0x000010000 << (x))

#define SUN4M_INT_MASKALL 0x80000000 /* mask all interrupts */
#define SUN4M_INT_MODULE_ERR 0x40000000 /* module error */
#define SUN4M_INT_M2S_WRITE 0x20000000 /* write buffer error */
#define SUN4M_INT_ECC 0x10000000 /* ecc memory error */
#define SUN4M_INT_FLOPPY 0x00400000 /* floppy disk */
#define SUN4M_INT_MODULE 0x00200000 /* module interrupt */
#define SUN4M_INT_VIDEO 0x00100000 /* onboard video */
#define SUN4M_INT_REALTIME 0x00080000 /* system timer */
#define SUN4M_INT_SCSI 0x00040000 /* onboard scsi */
#define SUN4M_INT_AUDIO 0x00020000 /* audio/isdn */
#define SUN4M_INT_ETHERNET 0x00010000 /* onboard ethernet */
#define SUN4M_INT_SERIAL 0x00008000 /* serial ports */
#define SUN4M_INT_KBDMS 0x00004000 /* keyboard/mouse */
#define SUN4M_INT_SBUSBITS 0x00003F80 /* sbus int bits */

#define SUN4M_INT_SBUS(x) (1 << (x+7))
#define SUN4M_INT_VME(x) (1 << (x))

#endif

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