summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/mips/kernel/smtc.c6
-rw-r--r--arch/mips/kernel/time.c13
-rw-r--r--arch/mips/kernel/traps.c20
-rw-r--r--arch/mips/mips-boards/atlas/atlas_int.c8
-rw-r--r--arch/mips/mips-boards/generic/time.c50
-rw-r--r--arch/mips/mips-boards/malta/malta_int.c14
-rw-r--r--arch/mips/mips-boards/sead/sead_int.c2
-rw-r--r--arch/mips/mips-boards/sead/sead_setup.c2
-rw-r--r--arch/mips/mips-boards/sim/sim_int.c2
-rw-r--r--arch/mips/mips-boards/sim/sim_time.c8
-rw-r--r--drivers/net/mipsnet.c2
-rw-r--r--include/asm-mips/irq.h9
-rw-r--r--include/asm-mips/mips-boards/atlasint.h6
-rw-r--r--include/asm-mips/mips-boards/maltaint.h6
-rw-r--r--include/asm-mips/mips-boards/seadint.h7
-rw-r--r--include/asm-mips/mips-boards/simint.h4
16 files changed, 73 insertions, 86 deletions
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 21eb5993a19..2e011470c34 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -13,9 +13,9 @@
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/hazards.h>
+#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/smp.h>
-#include <asm/mips-boards/maltaint.h>
#include <asm/mipsregs.h>
#include <asm/cacheflush.h>
#include <asm/time.h>
@@ -614,7 +614,7 @@ int setup_irq_smtc(unsigned int irq, struct irqaction * new,
#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
unsigned int vpe = current_cpu_data.vpe_id;
- vpemask[vpe][irq - MIPSCPU_INT_BASE] = 1;
+ vpemask[vpe][irq - MIPS_CPU_IRQ_BASE] = 1;
#endif
irq_hwmask[irq] = hwmask;
@@ -822,7 +822,7 @@ void ipi_decode(struct smtc_ipi *pipi)
switch (type_copy) {
case SMTC_CLOCK_TICK:
irq_enter();
- kstat_this_cpu.irqs[MIPSCPU_INT_BASE + MIPSCPU_INT_CPUCTR]++;
+ kstat_this_cpu.irqs[MIPS_CPU_IRQ_BASE + cp0_perfcount_irq]++;
/* Invoke Clock "Interrupt" */
ipi_timer_latch[dest_copy] = 0;
#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 7def1ff3da9..d48d1d5bea0 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -200,10 +200,15 @@ EXPORT_SYMBOL(null_perf_irq);
EXPORT_SYMBOL(perf_irq);
/*
+ * Timer interrupt
+ */
+int cp0_compare_irq;
+
+/*
* Performance counter IRQ or -1 if shared with timer
*/
-int mipsxx_perfcount_irq;
-EXPORT_SYMBOL(mipsxx_perfcount_irq);
+int cp0_perfcount_irq;
+EXPORT_SYMBOL_GPL(cp0_perfcount_irq);
/*
* Possibly handle a performance counter interrupt.
@@ -213,12 +218,12 @@ static inline int handle_perf_irq (int r2)
{
/*
* The performance counter overflow interrupt may be shared with the
- * timer interrupt (mipsxx_perfcount_irq < 0). If it is and a
+ * timer interrupt (cp0_perfcount_irq < 0). If it is and a
* performance counter has overflowed (perf_irq() == IRQ_HANDLED)
* and we can't reliably determine if a counter interrupt has also
* happened (!r2) then don't check for a timer interrupt.
*/
- return (mipsxx_perfcount_irq < 0) &&
+ return (cp0_perfcount_irq < 0) &&
perf_irq() == IRQ_HANDLED &&
!r2;
}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index a7a17eb9bfc..b1233644fcc 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1350,9 +1350,6 @@ void __init per_cpu_trap_init(void)
if (!secondaryTC) {
#endif /* CONFIG_MIPS_MT_SMTC */
- /*
- * Interrupt handling.
- */
if (cpu_has_veic || cpu_has_vint) {
write_c0_ebase (ebase);
/* Setting vector spacing enables EI/VI mode */
@@ -1366,6 +1363,23 @@ void __init per_cpu_trap_init(void)
} else
set_c0_cause(CAUSEF_IV);
}
+
+ /*
+ * Before R2 both interrupt numbers were fixed to 7, so on R2 only:
+ *
+ * o read IntCtl.IPTI to determine the timer interrupt
+ * o read IntCtl.IPPCI to determine the performance counter interrupt
+ */
+ if (cpu_has_mips_r2) {
+ cp0_compare_irq = (read_c0_intctl () >> 29) & 7;
+ cp0_perfcount_irq = -1;
+ } else {
+ cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;
+ cp0_perfcount_irq = (read_c0_intctl () >> 26) & 7;
+ if (cp0_perfcount_irq != cp0_compare_irq)
+ cp0_perfcount_irq = -1;
+ }
+
#ifdef CONFIG_MIPS_MT_SMTC
}
#endif /* CONFIG_MIPS_MT_SMTC */
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
index 9f49da95aac..6c8f0255e85 100644
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -189,7 +189,7 @@ asmlinkage void plat_irq_dispatch(void)
if (irq == MIPSCPU_INT_ATLAS)
atlas_hw0_irqdispatch();
else if (irq >= 0)
- do_IRQ(MIPSCPU_INT_BASE + irq);
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
spurious_interrupt();
}
@@ -261,11 +261,11 @@ void __init arch_init_irq(void)
} else if (cpu_has_vint) {
set_vi_handler (MIPSCPU_INT_ATLAS, atlas_hw0_irqdispatch);
#ifdef CONFIG_MIPS_MT_SMTC
- setup_irq_smtc (MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS,
+ setup_irq_smtc (MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS,
&atlasirq, (0x100 << MIPSCPU_INT_ATLAS));
#else /* Not SMTC */
- setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
+ setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
#endif /* CONFIG_MIPS_MT_SMTC */
} else
- setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
+ setup_irq(MIPS_CPU_IRQ_BASE + MIPSCPU_INT_ATLAS, &atlasirq);
}
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c
index 8f1000f51b3..c45d556aa96 100644
--- a/arch/mips/mips-boards/generic/time.c
+++ b/arch/mips/mips-boards/generic/time.c
@@ -54,7 +54,7 @@
unsigned long cpu_khz;
static int mips_cpu_timer_irq;
-extern int mipsxx_perfcount_irq;
+extern int cp0_perfcount_irq;
extern void smtc_timer_broadcast(int);
static void mips_timer_dispatch(void)
@@ -64,7 +64,7 @@ static void mips_timer_dispatch(void)
static void mips_perf_dispatch(void)
{
- do_IRQ(mipsxx_perfcount_irq);
+ do_IRQ(cp0_perfcount_irq);
}
/*
@@ -82,12 +82,12 @@ static inline int handle_perf_irq (int r2)
{
/*
* The performance counter overflow interrupt may be shared with the
- * timer interrupt (mipsxx_perfcount_irq < 0). If it is and a
+ * timer interrupt (cp0_perfcount_irq < 0). If it is and a
* performance counter has overflowed (perf_irq() == IRQ_HANDLED)
* and we can't reliably determine if a counter interrupt has also
* happened (!r2) then don't check for a timer interrupt.
*/
- return (mipsxx_perfcount_irq < 0) &&
+ return (cp0_perfcount_irq < 0) &&
perf_irq() == IRQ_HANDLED &&
!r2;
}
@@ -259,42 +259,31 @@ static struct irqaction perf_irqaction = {
void __init plat_perf_setup(struct irqaction *irq)
{
- int hwint = 0;
- mipsxx_perfcount_irq = -1;
+ cp0_perfcount_irq = -1;
#ifdef MSC01E_INT_BASE
if (cpu_has_veic) {
set_vi_handler (MSC01E_INT_PERFCTR, mips_perf_dispatch);
- mipsxx_perfcount_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
+ cp0_perfcount_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
} else
#endif
- if (cpu_has_mips_r2) {
- /*
- * Read IntCtl.IPPCI to determine the performance
- * counter interrupt
- */
- hwint = (read_c0_intctl () >> 26) & 7;
- if (hwint != MIPSCPU_INT_CPUCTR) {
- if (cpu_has_vint)
- set_vi_handler (hwint, mips_perf_dispatch);
- mipsxx_perfcount_irq = MIPSCPU_INT_BASE + hwint;
- }
- }
- if (mipsxx_perfcount_irq >= 0) {
+ if (cp0_perfcount_irq >= 0) {
+ if (cpu_has_vint)
+ set_vi_handler(cp0_perfcount_irq, mips_perf_dispatch);
#ifdef CONFIG_MIPS_MT_SMTC
- setup_irq_smtc(mipsxx_perfcount_irq, irq, 0x100 << hwint);
+ setup_irq_smtc(cp0_perfcount_irq, irq,
+ 0x100 << cp0_perfcount_irq);
#else
- setup_irq(mipsxx_perfcount_irq, irq);
+ setup_irq(cp0_perfcount_irq, irq);
#endif /* CONFIG_MIPS_MT_SMTC */
#ifdef CONFIG_SMP
- set_irq_handler(mipsxx_perfcount_irq, handle_percpu_irq);
+ set_irq_handler(cp0_perfcount_irq, handle_percpu_irq);
#endif
}
}
void __init plat_timer_setup(struct irqaction *irq)
{
- int hwint = 0;
#ifdef MSC01E_INT_BASE
if (cpu_has_veic) {
set_vi_handler (MSC01E_INT_CPUCTR, mips_timer_dispatch);
@@ -303,22 +292,15 @@ void __init plat_timer_setup(struct irqaction *irq)
else
#endif
{
- if (cpu_has_mips_r2)
- /*
- * Read IntCtl.IPTI to determine the timer interrupt
- */
- hwint = (read_c0_intctl () >> 29) & 7;
- else
- hwint = MIPSCPU_INT_CPUCTR;
if (cpu_has_vint)
- set_vi_handler (hwint, mips_timer_dispatch);
- mips_cpu_timer_irq = MIPSCPU_INT_BASE + hwint;
+ set_vi_handler(cp0_compare_irq, mips_timer_dispatch);
+ mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
}
/* we are using the cpu counter for timer interrupts */
irq->handler = mips_timer_interrupt; /* we use our own handler */
#ifdef CONFIG_MIPS_MT_SMTC
- setup_irq_smtc(mips_cpu_timer_irq, irq, 0x100 << hwint);
+ setup_irq_smtc(mips_cpu_timer_irq, irq, 0x100 << cp0_compare_irq);
#else
setup_irq(mips_cpu_timer_irq, irq);
#endif /* CONFIG_MIPS_MT_SMTC */
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 1668cc21d5b..c78d4834960 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -257,7 +257,7 @@ asmlinkage void plat_irq_dispatch(void)
if (irq == MIPSCPU_INT_I8259A)
malta_hw0_irqdispatch();
else if (irq > 0)
- do_IRQ(MIPSCPU_INT_BASE + irq);
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
spurious_interrupt();
}
@@ -326,17 +326,17 @@ void __init arch_init_irq(void)
set_vi_handler (MIPSCPU_INT_I8259A, malta_hw0_irqdispatch);
set_vi_handler (MIPSCPU_INT_COREHI, corehi_irqdispatch);
#ifdef CONFIG_MIPS_MT_SMTC
- setup_irq_smtc (MIPSCPU_INT_BASE+MIPSCPU_INT_I8259A, &i8259irq,
+ setup_irq_smtc (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq,
(0x100 << MIPSCPU_INT_I8259A));
- setup_irq_smtc (MIPSCPU_INT_BASE+MIPSCPU_INT_COREHI,
+ setup_irq_smtc (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI,
&corehi_irqaction, (0x100 << MIPSCPU_INT_COREHI));
#else /* Not SMTC */
- setup_irq (MIPSCPU_INT_BASE+MIPSCPU_INT_I8259A, &i8259irq);
- setup_irq (MIPSCPU_INT_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
+ setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq);
+ setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
#endif /* CONFIG_MIPS_MT_SMTC */
}
else {
- setup_irq (MIPSCPU_INT_BASE+MIPSCPU_INT_I8259A, &i8259irq);
- setup_irq (MIPSCPU_INT_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
+ setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq);
+ setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction);
}
}
diff --git a/arch/mips/mips-boards/sead/sead_int.c b/arch/mips/mips-boards/sead/sead_int.c
index c4b9de3a7f2..9ca0f82f136 100644
--- a/arch/mips/mips-boards/sead/sead_int.c
+++ b/arch/mips/mips-boards/sead/sead_int.c
@@ -106,7 +106,7 @@ asmlinkage void plat_irq_dispatch(void)
irq = irq_ffs(pending);
if (irq >= 0)
- do_IRQ(MIPSCPU_INT_BASE + irq);
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
spurious_interrupt();
}
diff --git a/arch/mips/mips-boards/sead/sead_setup.c b/arch/mips/mips-boards/sead/sead_setup.c
index 811aba10060..bb801409d39 100644
--- a/arch/mips/mips-boards/sead/sead_setup.c
+++ b/arch/mips/mips-boards/sead/sead_setup.c
@@ -68,7 +68,7 @@ static void __init serial_init(void)
#else
s.iobase = SEAD_UART0_REGS_BASE+3;
#endif
- s.irq = MIPSCPU_INT_BASE + MIPSCPU_INT_UART0;
+ s.irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_UART0;
s.uartclk = SEAD_BASE_BAUD * 16;
s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ;
s.iotype = UPIO_PORT;
diff --git a/arch/mips/mips-boards/sim/sim_int.c b/arch/mips/mips-boards/sim/sim_int.c
index 15ac0655c1f..766e0159ee5 100644
--- a/arch/mips/mips-boards/sim/sim_int.c
+++ b/arch/mips/mips-boards/sim/sim_int.c
@@ -77,7 +77,7 @@ asmlinkage void plat_irq_dispatch(void)
irq = irq_ffs(pending);
if (irq > 0)
- do_IRQ(MIPSCPU_INT_BASE + irq);
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
else
spurious_interrupt();
}
diff --git a/arch/mips/mips-boards/sim/sim_time.c b/arch/mips/mips-boards/sim/sim_time.c
index d3a21c74151..7224ffe31d3 100644
--- a/arch/mips/mips-boards/sim/sim_time.c
+++ b/arch/mips/mips-boards/sim/sim_time.c
@@ -71,8 +71,8 @@ irqreturn_t sim_timer_interrupt(int irq, void *dev_id)
int vpflags = dvpe();
write_c0_compare (read_c0_count() - 1);
- clear_c0_cause(0x100 << MIPSCPU_INT_CPUCTR);
- set_c0_status(0x100 << MIPSCPU_INT_CPUCTR);
+ clear_c0_cause(0x100 << cp0_compare_irq);
+ set_c0_status(0x100 << cp0_compare_irq);
irq_enable_hazard();
evpe(vpflags);
@@ -183,8 +183,8 @@ void __init plat_timer_setup(struct irqaction *irq)
}
else {
if (cpu_has_vint)
- set_vi_handler(MIPSCPU_INT_CPUCTR, mips_timer_dispatch);
- mips_cpu_timer_irq = MIPSCPU_INT_BASE + MIPSCPU_INT_CPUCTR;
+ set_vi_handler(cp0_compare_irq, mips_timer_dispatch);
+ mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
}
/* we are using the cpu counter for timer interrupts */
diff --git a/drivers/net/mipsnet.c b/drivers/net/mipsnet.c
index 638a279ec50..9853c74f6bb 100644
--- a/drivers/net/mipsnet.c
+++ b/drivers/net/mipsnet.c
@@ -240,7 +240,7 @@ static int __init mipsnet_probe(struct device *dev)
* TODO: probe for these or load them from PARAM
*/
netdev->base_addr = 0x4200;
- netdev->irq = MIPSCPU_INT_BASE + MIPSCPU_INT_MB0 +
+ netdev->irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB0 +
inl(mipsnet_reg_address(netdev, interruptInfo));
// Get the io region now, get irq on open()
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h
index 91803ba30ff..3ca6a076124 100644
--- a/include/asm-mips/irq.h
+++ b/include/asm-mips/irq.h
@@ -72,4 +72,13 @@ extern int allocate_irqno(void);
extern void alloc_legacy_irqno(void);
extern void free_irqno(unsigned int irq);
+/*
+ * Before R2 the timer and performance counter interrupts were both fixed to
+ * IE7. Since R2 their number has to be read from the c0_intctl register.
+ */
+#define CP0_LEGACY_COMPARE_IRQ 7
+
+extern int cp0_compare_irq;
+extern int cp0_perfcount_irq;
+
#endif /* _ASM_IRQ_H */
diff --git a/include/asm-mips/mips-boards/atlasint.h b/include/asm-mips/mips-boards/atlasint.h
index 76add42e486..93ba1c1b2a4 100644
--- a/include/asm-mips/mips-boards/atlasint.h
+++ b/include/asm-mips/mips-boards/atlasint.h
@@ -28,11 +28,6 @@
#include <irq.h>
-/*
- * Interrupts 0..7 are used for Atlas CPU interrupts (nonEIC mode)
- */
-#define MIPSCPU_INT_BASE MIPS_CPU_IRQ_BASE
-
/* CPU interrupt offsets */
#define MIPSCPU_INT_SW0 0
#define MIPSCPU_INT_SW1 1
@@ -42,7 +37,6 @@
#define MIPSCPU_INT_MB2 4
#define MIPSCPU_INT_MB3 5
#define MIPSCPU_INT_MB4 6
-#define MIPSCPU_INT_CPUCTR 7
/*
* Interrupts 8..39 are used for Atlas interrupt controller interrupts
diff --git a/include/asm-mips/mips-boards/maltaint.h b/include/asm-mips/mips-boards/maltaint.h
index 9180d646611..7461318f1cd 100644
--- a/include/asm-mips/mips-boards/maltaint.h
+++ b/include/asm-mips/mips-boards/maltaint.h
@@ -32,11 +32,6 @@
*/
#define MALTA_INT_BASE 0
-/*
- * Interrupts 16..23 are used for Malta CPU interrupts (nonEIC mode)
- */
-#define MIPSCPU_INT_BASE MIPS_CPU_IRQ_BASE
-
/* CPU interrupt offsets */
#define MIPSCPU_INT_SW0 0
#define MIPSCPU_INT_SW1 1
@@ -49,7 +44,6 @@
#define MIPSCPU_INT_COREHI MIPSCPU_INT_MB3
#define MIPSCPU_INT_MB4 6
#define MIPSCPU_INT_CORELO MIPSCPU_INT_MB4
-#define MIPSCPU_INT_CPUCTR 7
/*
* Interrupts 64..127 are used for Soc-it Classic interrupts
diff --git a/include/asm-mips/mips-boards/seadint.h b/include/asm-mips/mips-boards/seadint.h
index 4f6a3933699..e710bae0734 100644
--- a/include/asm-mips/mips-boards/seadint.h
+++ b/include/asm-mips/mips-boards/seadint.h
@@ -22,14 +22,7 @@
#include <irq.h>
-/*
- * Interrupts 0..7 are used for SEAD CPU interrupts
- */
-#define MIPSCPU_INT_BASE MIPS_CPU_IRQ_BASE
-
#define MIPSCPU_INT_UART0 2
#define MIPSCPU_INT_UART1 3
-#define MIPSCPU_INT_CPUCTR 7
-
#endif /* !(_MIPS_SEADINT_H) */
diff --git a/include/asm-mips/mips-boards/simint.h b/include/asm-mips/mips-boards/simint.h
index 54f2fe621d6..8ef6db76d5c 100644
--- a/include/asm-mips/mips-boards/simint.h
+++ b/include/asm-mips/mips-boards/simint.h
@@ -21,15 +21,11 @@
#define SIM_INT_BASE 0
#define MIPSCPU_INT_MB0 2
-#define MIPSCPU_INT_BASE MIPS_CPU_IRQ_BASE
#define MIPS_CPU_TIMER_IRQ 7
-#define MIPSCPU_INT_CPUCTR 7
-
#define MSC01E_INT_BASE 64
-#define MIPSCPU_INT_CPUCTR 7
#define MSC01E_INT_CPUCTR 11
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-13 20:11:29 +0000