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MIPS: msp71xx: Convert to new irq_chip functions 

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2197/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Thomas Gleixner 2011-03-23 21:09:06 +00:00 committed by Ralf Baechle
parent 7ec8af9e34
commit d7881fbdf8
3 changed files with 46 additions and 93 deletions
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41
arch/mips/pmc-sierra/msp71xx/msp_irq_cic.c
View File

@ -77,7 +77,7 @@ static inline void cic_wmb(void)
dummy_read++; dummy_read++;
} }
static inline void unmask_cic_irq(unsigned int irq) static void unmask_cic_irq(struct irq_data *d)
{ {
volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG;
int vpe; int vpe;
@ -89,18 +89,18 @@ static inline void unmask_cic_irq(unsigned int irq)
* Make sure we have IRQ affinity. It may have changed while * Make sure we have IRQ affinity. It may have changed while
* we were processing the IRQ. * we were processing the IRQ.
*/ */
if (!cpumask_test_cpu(smp_processor_id(), irq_desc[irq].affinity)) if (!cpumask_test_cpu(smp_processor_id(), d->affinity))
return; return;
#endif #endif
vpe = get_current_vpe(); vpe = get_current_vpe();
LOCK_VPE(flags, mtflags); LOCK_VPE(flags, mtflags);
cic_msk_reg[vpe] |= (1 << (irq - MSP_CIC_INTBASE)); cic_msk_reg[vpe] |= (1 << (d->irq - MSP_CIC_INTBASE));
UNLOCK_VPE(flags, mtflags); UNLOCK_VPE(flags, mtflags);
cic_wmb(); cic_wmb();
} }
static inline void mask_cic_irq(unsigned int irq) static void mask_cic_irq(struct irq_data *d)
{ {
volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG; volatile u32 *cic_msk_reg = CIC_VPE0_MSK_REG;
int vpe = get_current_vpe(); int vpe = get_current_vpe();
@ -108,33 +108,27 @@ static inline void mask_cic_irq(unsigned int irq)
unsigned long flags, mtflags; unsigned long flags, mtflags;
#endif #endif
LOCK_VPE(flags, mtflags); LOCK_VPE(flags, mtflags);
cic_msk_reg[vpe] &= ~(1 << (irq - MSP_CIC_INTBASE)); cic_msk_reg[vpe] &= ~(1 << (d->irq - MSP_CIC_INTBASE));
UNLOCK_VPE(flags, mtflags); UNLOCK_VPE(flags, mtflags);
cic_wmb(); cic_wmb();
} }
static inline void msp_cic_irq_ack(unsigned int irq) static void msp_cic_irq_ack(struct irq_data *d)
{ {
mask_cic_irq(irq); mask_cic_irq(d);
/* /*
* Only really necessary for 18, 16-14 and sometimes 3:0 * Only really necessary for 18, 16-14 and sometimes 3:0
* (since these can be edge sensitive) but it doesn't * (since these can be edge sensitive) but it doesn't
* hurt for the others * hurt for the others
*/ */
*CIC_STS_REG = (1 << (irq - MSP_CIC_INTBASE)); *CIC_STS_REG = (1 << (d->irq - MSP_CIC_INTBASE));
smtc_im_ack_irq(irq); smtc_im_ack_irq(d->irq);
}
static void msp_cic_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
unmask_cic_irq(irq);
} }
/*Note: Limiting to VSMP . Not tested in SMTC */ /*Note: Limiting to VSMP . Not tested in SMTC */
#ifdef CONFIG_MIPS_MT_SMP #ifdef CONFIG_MIPS_MT_SMP
static inline int msp_cic_irq_set_affinity(unsigned int irq, static int msp_cic_irq_set_affinity(struct irq_data *d,
const struct cpumask *cpumask) const struct cpumask *cpumask, bool force)
{ {
int cpu; int cpu;
unsigned long flags; unsigned long flags;
@ -163,13 +157,12 @@ static inline int msp_cic_irq_set_affinity(unsigned int irq,
static struct irq_chip msp_cic_irq_controller = { static struct irq_chip msp_cic_irq_controller = {
.name = "MSP_CIC", .name = "MSP_CIC",
.mask = mask_cic_irq, .irq_mask = mask_cic_irq,
.mask_ack = msp_cic_irq_ack, .irq_mask_ack = msp_cic_irq_ack,
.unmask = unmask_cic_irq, .irq_unmask = unmask_cic_irq,
.ack = msp_cic_irq_ack, .irq_ack = msp_cic_irq_ack,
.end = msp_cic_irq_end,
#ifdef CONFIG_MIPS_MT_SMP #ifdef CONFIG_MIPS_MT_SMP
.set_affinity = msp_cic_irq_set_affinity, .irq_set_affinity = msp_cic_irq_set_affinity,
#endif #endif
}; };
@ -220,7 +213,5 @@ void msp_cic_irq_dispatch(void)
do_IRQ(ffs(pending) + MSP_CIC_INTBASE - 1); do_IRQ(ffs(pending) + MSP_CIC_INTBASE - 1);
} else{ } else{
spurious_interrupt(); spurious_interrupt();
/* Re-enable the CIC cascaded interrupt. */
irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC);
} }
} }

80
arch/mips/pmc-sierra/msp71xx/msp_irq_per.c
View File

@ -48,100 +48,61 @@ static inline void per_wmb(void)
dummy_read++; dummy_read++;
} }
static inline void unmask_per_irq(unsigned int irq) static inline void unmask_per_irq(struct irq_data *d)
{ {
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
unsigned long flags; unsigned long flags;
spin_lock_irqsave(&per_lock, flags); spin_lock_irqsave(&per_lock, flags);
*PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); *PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE));
spin_unlock_irqrestore(&per_lock, flags); spin_unlock_irqrestore(&per_lock, flags);
#else #else
*PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); *PER_INT_MSK_REG |= (1 << (d->irq - MSP_PER_INTBASE));
#endif #endif
per_wmb(); per_wmb();
} }
static inline void mask_per_irq(unsigned int irq) static inline void mask_per_irq(struct irq_data *d)
{ {
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
unsigned long flags; unsigned long flags;
spin_lock_irqsave(&per_lock, flags); spin_lock_irqsave(&per_lock, flags);
*PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); *PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE));
spin_unlock_irqrestore(&per_lock, flags); spin_unlock_irqrestore(&per_lock, flags);
#else #else
*PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE)); *PER_INT_MSK_REG &= ~(1 << (d->irq - MSP_PER_INTBASE));
#endif #endif
per_wmb(); per_wmb();
} }
static inline void msp_per_irq_enable(unsigned int irq) static inline void msp_per_irq_ack(struct irq_data *d)
{ {
unmask_per_irq(irq); mask_per_irq(d);
}
static inline void msp_per_irq_disable(unsigned int irq)
{
mask_per_irq(irq);
}
static unsigned int msp_per_irq_startup(unsigned int irq)
{
msp_per_irq_enable(irq);
return 0;
}
#define msp_per_irq_shutdown msp_per_irq_disable
static inline void msp_per_irq_ack(unsigned int irq)
{
mask_per_irq(irq);
/* /*
* In the PER interrupt controller, only bits 11 and 10 * In the PER interrupt controller, only bits 11 and 10
* are write-to-clear, (SPI TX complete, SPI RX complete). * are write-to-clear, (SPI TX complete, SPI RX complete).
* It does nothing for any others. * It does nothing for any others.
*/ */
*PER_INT_STS_REG = (1 << (d->irq - MSP_PER_INTBASE));
*PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE));
/* Re-enable the CIC cascaded interrupt and return */
irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC);
}
static void msp_per_irq_end(unsigned int irq)
{
if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS)))
unmask_per_irq(irq);
} }
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
static inline int msp_per_irq_set_affinity(unsigned int irq, static int msp_per_irq_set_affinity(struct irq_data *d,
const struct cpumask *affinity) const struct cpumask *affinity, bool force)
{ {
unsigned long flags; /* WTF is this doing ????? */
/* unmask_per_irq(d);
* Calls to ack, end, startup, enable are spinlocked in setup_irq and
* __do_IRQ.Callers of this function do not spinlock,so we need to
* do so ourselves.
*/
raw_spin_lock_irqsave(&irq_desc[irq].lock, flags);
msp_per_irq_enable(irq);
raw_spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
return 0; return 0;
} }
#endif #endif
static struct irq_chip msp_per_irq_controller = { static struct irq_chip msp_per_irq_controller = {
.name = "MSP_PER", .name = "MSP_PER",
.startup = msp_per_irq_startup, .irq_enable = unmask_per_irq.
.shutdown = msp_per_irq_shutdown, .irq_disable = mask_per_irq,
.enable = msp_per_irq_enable, .irq_ack = msp_per_irq_ack,
.disable = msp_per_irq_disable,
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
.set_affinity = msp_per_irq_set_affinity, .irq_set_affinity = msp_per_irq_set_affinity,
#endif #endif
.ack = msp_per_irq_ack,
.end = msp_per_irq_end,
}; };
void __init msp_per_irq_init(void) void __init msp_per_irq_init(void)
@ -152,10 +113,7 @@ void __init msp_per_irq_init(void)
*PER_INT_STS_REG = 0xFFFFFFFF; *PER_INT_STS_REG = 0xFFFFFFFF;
/* initialize all the IRQ descriptors */ /* initialize all the IRQ descriptors */
for (i = MSP_PER_INTBASE; i < MSP_PER_INTBASE + 32; i++) { for (i = MSP_PER_INTBASE; i < MSP_PER_INTBASE + 32; i++) {
irq_desc[i].status = IRQ_DISABLED; irq_set_chip(i, &msp_per_irq_controller);
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
irq_desc[i].chip = &msp_per_irq_controller;
#ifdef CONFIG_MIPS_MT_SMTC #ifdef CONFIG_MIPS_MT_SMTC
irq_hwmask[i] = C_IRQ4; irq_hwmask[i] = C_IRQ4;
#endif #endif
@ -173,7 +131,5 @@ void msp_per_irq_dispatch(void)
do_IRQ(ffs(pending) + MSP_PER_INTBASE - 1); do_IRQ(ffs(pending) + MSP_PER_INTBASE - 1);
} else { } else {
spurious_interrupt(); spurious_interrupt();
/* Re-enable the CIC cascaded interrupt and return */
irq_desc[MSP_INT_CIC].chip->end(MSP_INT_CIC);
} }
} }

18
arch/mips/pmc-sierra/msp71xx/msp_irq_slp.c
View File

@ -21,8 +21,10 @@
#include <msp_slp_int.h> #include <msp_slp_int.h>
#include <msp_regs.h> #include <msp_regs.h>
static inline void unmask_msp_slp_irq(unsigned int irq) static inline void unmask_msp_slp_irq(struct irq_data *d)
{ {
unsigned int irq = d->irq;
/* check for PER interrupt range */ /* check for PER interrupt range */
if (irq < MSP_PER_INTBASE) if (irq < MSP_PER_INTBASE)
*SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE)); *SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE));
@ -30,8 +32,10 @@ static inline void unmask_msp_slp_irq(unsigned int irq)
*PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE)); *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
} }
static inline void mask_msp_slp_irq(unsigned int irq) static inline void mask_msp_slp_irq(struct irq_data *d)
{ {
unsigned int irq = d->irq;
/* check for PER interrupt range */ /* check for PER interrupt range */
if (irq < MSP_PER_INTBASE) if (irq < MSP_PER_INTBASE)
*SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE)); *SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE));
@ -43,8 +47,10 @@ static inline void mask_msp_slp_irq(unsigned int irq)
* While we ack the interrupt interrupts are disabled and thus we don't need * While we ack the interrupt interrupts are disabled and thus we don't need
* to deal with concurrency issues. Same for msp_slp_irq_end. * to deal with concurrency issues. Same for msp_slp_irq_end.
*/ */
static inline void ack_msp_slp_irq(unsigned int irq) static inline void ack_msp_slp_irq(struct irq_data *d)
{ {
unsigned int irq = d->irq;
/* check for PER interrupt range */ /* check for PER interrupt range */
if (irq < MSP_PER_INTBASE) if (irq < MSP_PER_INTBASE)
*SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE)); *SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE));
@ -54,9 +60,9 @@ static inline void ack_msp_slp_irq(unsigned int irq)
static struct irq_chip msp_slp_irq_controller = { static struct irq_chip msp_slp_irq_controller = {
.name = "MSP_SLP", .name = "MSP_SLP",
.ack = ack_msp_slp_irq, .irq_ack = ack_msp_slp_irq,
.mask = mask_msp_slp_irq, .irq_mask = mask_msp_slp_irq,
.unmask = unmask_msp_slp_irq, .irq_unmask = unmask_msp_slp_irq,
}; };
void __init msp_slp_irq_init(void) void __init msp_slp_irq_init(void)