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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:14:08 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-06-15 16:14:08 -0700
commit4ff4275b24fdcca189b33f9a73fe7abef1dc84bc (patch)
treed78f65e793d80e3a4c454d37e710f182de4bf34e
parente00eea42f24550beb9940e641402450f695c888a (diff)
parent7b4f4ec21038ac13c63d130357d1c3015ec3f3e8 (diff)
downloadlinux-4ff4275b24fdcca189b33f9a73fe7abef1dc84bc.tar.gz
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix builds where MSC01E_xxx is undefined. [MIPS] Separate performance counter interrupts [MIPS] Malta: Fix for SOCitSC based Maltas
-rw-r--r--arch/mips/kernel/smp-mt.c12
-rw-r--r--arch/mips/kernel/time.c44
-rw-r--r--arch/mips/mips-boards/generic/init.c62
-rw-r--r--arch/mips/mips-boards/generic/pci.c20
-rw-r--r--arch/mips/mips-boards/generic/time.c115
-rw-r--r--arch/mips/mips-boards/malta/malta_int.c42
-rw-r--r--arch/mips/mips-boards/malta/malta_setup.c4
-rw-r--r--arch/mips/oprofile/op_model_mipsxx.c7
-rw-r--r--include/asm-mips/mips-boards/generic.h22
-rw-r--r--include/asm-mips/mips-boards/msc01_pci.h1
10 files changed, 222 insertions, 107 deletions
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 64b62bdfb4f..b8fa7ddd78f 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -129,13 +129,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
static struct irqaction irq_resched = {
.handler = ipi_resched_interrupt,
- .flags = IRQF_DISABLED,
+ .flags = IRQF_DISABLED|IRQF_PERCPU,
.name = "IPI_resched"
};
static struct irqaction irq_call = {
.handler = ipi_call_interrupt,
- .flags = IRQF_DISABLED,
+ .flags = IRQF_DISABLED|IRQF_PERCPU,
.name = "IPI_call"
};
@@ -275,10 +275,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
setup_irq(cpu_ipi_resched_irq, &irq_resched);
setup_irq(cpu_ipi_call_irq, &irq_call);
- /* need to mark IPI's as IRQ_PER_CPU */
- irq_desc[cpu_ipi_resched_irq].status |= IRQ_PER_CPU;
set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
- irq_desc[cpu_ipi_call_irq].status |= IRQ_PER_CPU;
set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq);
}
@@ -326,8 +323,11 @@ void prom_boot_secondary(int cpu, struct task_struct *idle)
void prom_init_secondary(void)
{
+ /* Enable per-cpu interrupts */
+
+ /* This is Malta specific: IPI,performance and timer inetrrupts */
write_c0_status((read_c0_status() & ~ST0_IM ) |
- (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP7));
+ (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7));
}
void prom_smp_finish(void)
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 751b4a18b13..7def1ff3da9 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -199,6 +199,30 @@ int (*perf_irq)(void) = null_perf_irq;
EXPORT_SYMBOL(null_perf_irq);
EXPORT_SYMBOL(perf_irq);
+/*
+ * Performance counter IRQ or -1 if shared with timer
+ */
+int mipsxx_perfcount_irq;
+EXPORT_SYMBOL(mipsxx_perfcount_irq);
+
+/*
+ * Possibly handle a performance counter interrupt.
+ * Return true if the timer interrupt should not be checked
+ */
+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
+ * 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) &&
+ perf_irq() == IRQ_HANDLED &&
+ !r2;
+}
+
asmlinkage void ll_timer_interrupt(int irq)
{
int r2 = cpu_has_mips_r2;
@@ -206,19 +230,13 @@ asmlinkage void ll_timer_interrupt(int irq)
irq_enter();
kstat_this_cpu.irqs[irq]++;
- /*
- * Suckage alert:
- * Before R2 of the architecture there was no way to see if a
- * performance counter interrupt was pending, so we have to run the
- * performance counter interrupt handler anyway.
- */
- if (!r2 || (read_c0_cause() & (1 << 26)))
- if (perf_irq())
- goto out;
+ if (handle_perf_irq(r2))
+ goto out;
- /* we keep interrupt disabled all the time */
- if (!r2 || (read_c0_cause() & (1 << 30)))
- timer_interrupt(irq, NULL);
+ if (r2 && ((read_c0_cause() & (1 << 30)) == 0))
+ goto out;
+
+ timer_interrupt(irq, NULL);
out:
irq_exit();
@@ -258,7 +276,7 @@ unsigned int mips_hpt_frequency;
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
- .flags = IRQF_DISABLED,
+ .flags = IRQF_DISABLED | IRQF_PERCPU,
.name = "timer",
};
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 88e9c2a7a2f..4eabc1eadd2 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -57,7 +57,8 @@ int *_prom_argv, *_prom_envp;
int init_debug = 0;
-unsigned int mips_revision_corid;
+int mips_revision_corid;
+int mips_revision_sconid;
/* Bonito64 system controller register base. */
unsigned long _pcictrl_bonito;
@@ -275,13 +276,38 @@ void __init prom_init(void)
else
mips_revision_corid = MIPS_REVISION_CORID_CORE_EMUL_MSC;
}
- switch(mips_revision_corid) {
+
+ mips_revision_sconid = MIPS_REVISION_SCONID;
+ if (mips_revision_sconid == MIPS_REVISION_SCON_OTHER) {
+ switch (mips_revision_corid) {
+ case MIPS_REVISION_CORID_QED_RM5261:
+ case MIPS_REVISION_CORID_CORE_LV:
+ case MIPS_REVISION_CORID_CORE_FPGA:
+ case MIPS_REVISION_CORID_CORE_FPGAR2:
+ mips_revision_sconid = MIPS_REVISION_SCON_GT64120;
+ break;
+ case MIPS_REVISION_CORID_CORE_EMUL_BON:
+ case MIPS_REVISION_CORID_BONITO64:
+ case MIPS_REVISION_CORID_CORE_20K:
+ mips_revision_sconid = MIPS_REVISION_SCON_BONITO;
+ break;
+ case MIPS_REVISION_CORID_CORE_MSC:
+ case MIPS_REVISION_CORID_CORE_FPGA2:
+ case MIPS_REVISION_CORID_CORE_FPGA3:
+ case MIPS_REVISION_CORID_CORE_24K:
+ case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+ mips_revision_sconid = MIPS_REVISION_SCON_SOCIT;
+ break;
+ default:
+ mips_display_message("CC Error");
+ while (1); /* We die here... */
+ }
+ }
+
+ switch (mips_revision_sconid) {
u32 start, map, mask, data;
- case MIPS_REVISION_CORID_QED_RM5261:
- case MIPS_REVISION_CORID_CORE_LV:
- case MIPS_REVISION_CORID_CORE_FPGA:
- case MIPS_REVISION_CORID_CORE_FPGAR2:
+ case MIPS_REVISION_SCON_GT64120:
/*
* Setup the North bridge to do Master byte-lane swapping
* when running in bigendian.
@@ -305,9 +331,7 @@ void __init prom_init(void)
set_io_port_base(MALTA_GT_PORT_BASE);
break;
- case MIPS_REVISION_CORID_CORE_EMUL_BON:
- case MIPS_REVISION_CORID_BONITO64:
- case MIPS_REVISION_CORID_CORE_20K:
+ case MIPS_REVISION_SCON_BONITO:
_pcictrl_bonito_pcicfg = (unsigned long)ioremap(BONITO_PCICFG_BASE, BONITO_PCICFG_SIZE);
/*
@@ -334,13 +358,10 @@ void __init prom_init(void)
set_io_port_base(MALTA_BONITO_PORT_BASE);
break;
- case MIPS_REVISION_CORID_CORE_MSC:
- case MIPS_REVISION_CORID_CORE_FPGA2:
- case MIPS_REVISION_CORID_CORE_FPGA3:
- case MIPS_REVISION_CORID_CORE_24K:
- case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+ case MIPS_REVISION_SCON_SOCIT:
+ case MIPS_REVISION_SCON_ROCIT:
_pcictrl_msc = (unsigned long)ioremap(MIPS_MSC01_PCI_REG_BASE, 0x2000);
-
+ mips_pci_controller:
mb();
MSC_READ(MSC01_PCI_CFG, data);
MSC_WRITE(MSC01_PCI_CFG, data & ~MSC01_PCI_CFG_EN_BIT);
@@ -374,10 +395,15 @@ void __init prom_init(void)
set_io_port_base(MALTA_MSC_PORT_BASE);
break;
+ case MIPS_REVISION_SCON_SOCITSC:
+ case MIPS_REVISION_SCON_SOCITSCP:
+ _pcictrl_msc = (unsigned long)ioremap(MIPS_SOCITSC_PCI_REG_BASE, 0x2000);
+ goto mips_pci_controller;
+
default:
- /* Unknown Core card */
- mips_display_message("CC Error");
- while(1); /* We die here... */
+ /* Unknown system controller */
+ mips_display_message("SC Error");
+ while (1); /* We die here... */
}
#endif
board_nmi_handler_setup = mips_nmi_setup;
diff --git a/arch/mips/mips-boards/generic/pci.c b/arch/mips/mips-boards/generic/pci.c
index f98d60f7865..c9852206890 100644
--- a/arch/mips/mips-boards/generic/pci.c
+++ b/arch/mips/mips-boards/generic/pci.c
@@ -92,11 +92,8 @@ void __init mips_pcibios_init(void)
struct pci_controller *controller;
resource_size_t start, end, map, start1, end1, map1, map2, map3, mask;
- switch (mips_revision_corid) {
- case MIPS_REVISION_CORID_QED_RM5261:
- case MIPS_REVISION_CORID_CORE_LV:
- case MIPS_REVISION_CORID_CORE_FPGA:
- case MIPS_REVISION_CORID_CORE_FPGAR2:
+ switch (mips_revision_sconid) {
+ case MIPS_REVISION_SCON_GT64120:
/*
* Due to a bug in the Galileo system controller, we need
* to setup the PCI BAR for the Galileo internal registers.
@@ -161,9 +158,7 @@ void __init mips_pcibios_init(void)
controller = &gt64120_controller;
break;
- case MIPS_REVISION_CORID_BONITO64:
- case MIPS_REVISION_CORID_CORE_20K:
- case MIPS_REVISION_CORID_CORE_EMUL_BON:
+ case MIPS_REVISION_SCON_BONITO:
/* Set up resource ranges from the controller's registers. */
map = BONITO_PCIMAP;
map1 = (BONITO_PCIMAP & BONITO_PCIMAP_PCIMAP_LO0) >>
@@ -195,11 +190,10 @@ void __init mips_pcibios_init(void)
controller = &bonito64_controller;
break;
- case MIPS_REVISION_CORID_CORE_MSC:
- case MIPS_REVISION_CORID_CORE_FPGA2:
- case MIPS_REVISION_CORID_CORE_FPGA3:
- case MIPS_REVISION_CORID_CORE_24K:
- case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+ case MIPS_REVISION_SCON_SOCIT:
+ case MIPS_REVISION_SCON_ROCIT:
+ case MIPS_REVISION_SCON_SOCITSC:
+ case MIPS_REVISION_SCON_SOCITSCP:
/* Set up resource ranges from the controller's registers. */
MSC_READ(MSC01_PCI_SC2PMBASL, start);
MSC_READ(MSC01_PCI_SC2PMMSKL, mask);
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c
index b41db9e7ab1..8f1000f51b3 100644
--- a/arch/mips/mips-boards/generic/time.c
+++ b/arch/mips/mips-boards/generic/time.c
@@ -53,9 +53,8 @@
unsigned long cpu_khz;
-#define CPUCTR_IMASKBIT (0x100 << MIPSCPU_INT_CPUCTR)
-
static int mips_cpu_timer_irq;
+extern int mipsxx_perfcount_irq;
extern void smtc_timer_broadcast(int);
static void mips_timer_dispatch(void)
@@ -63,6 +62,11 @@ static void mips_timer_dispatch(void)
do_IRQ(mips_cpu_timer_irq);
}
+static void mips_perf_dispatch(void)
+{
+ do_IRQ(mipsxx_perfcount_irq);
+}
+
/*
* Redeclare until I get around mopping the timer code insanity on MIPS.
*/
@@ -70,6 +74,24 @@ extern int null_perf_irq(void);
extern int (*perf_irq)(void);
+/*
+ * Possibly handle a performance counter interrupt.
+ * Return true if the timer interrupt should not be checked
+ */
+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
+ * 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) &&
+ perf_irq() == IRQ_HANDLED &&
+ !r2;
+}
+
irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
{
int cpu = smp_processor_id();
@@ -92,8 +114,7 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
* We could be here due to timer interrupt,
* perf counter overflow, or both.
*/
- if (read_c0_cause() & (1 << 26))
- perf_irq();
+ (void) handle_perf_irq(1);
if (read_c0_cause() & (1 << 30)) {
/*
@@ -115,19 +136,19 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id)
#else /* CONFIG_MIPS_MT_SMTC */
int r2 = cpu_has_mips_r2;
+ if (handle_perf_irq(r2))
+ goto out;
+
+ if (r2 && ((read_c0_cause() & (1 << 30)) == 0))
+ goto out;
+
if (cpu == 0) {
/*
* CPU 0 handles the global timer interrupt job and process
* accounting resets count/compare registers to trigger next
* timer int.
*/
- if (!r2 || (read_c0_cause() & (1 << 26)))
- if (perf_irq())
- goto out;
-
- /* we keep interrupt disabled all the time */
- if (!r2 || (read_c0_cause() & (1 << 30)))
- timer_interrupt(irq, NULL);
+ timer_interrupt(irq, NULL);
} else {
/* Everyone else needs to reset the timer int here as
ll_local_timer_interrupt doesn't */
@@ -225,35 +246,85 @@ void __init mips_time_init(void)
mips_scroll_message();
}
+irqreturn_t mips_perf_interrupt(int irq, void *dev_id)
+{
+ return perf_irq();
+}
+
+static struct irqaction perf_irqaction = {
+ .handler = mips_perf_interrupt,
+ .flags = IRQF_DISABLED | IRQF_PERCPU,
+ .name = "performance",
+};
+
+void __init plat_perf_setup(struct irqaction *irq)
+{
+ int hwint = 0;
+ mipsxx_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;
+ } 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) {
+#ifdef CONFIG_MIPS_MT_SMTC
+ setup_irq_smtc(mipsxx_perfcount_irq, irq, 0x100 << hwint);
+#else
+ setup_irq(mipsxx_perfcount_irq, irq);
+#endif /* CONFIG_MIPS_MT_SMTC */
+#ifdef CONFIG_SMP
+ set_irq_handler(mipsxx_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);
mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR;
- } else
+ }
+ 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 (MIPSCPU_INT_CPUCTR, mips_timer_dispatch);
- mips_cpu_timer_irq = MIPSCPU_INT_BASE + MIPSCPU_INT_CPUCTR;
+ set_vi_handler (hwint, mips_timer_dispatch);
+ mips_cpu_timer_irq = MIPSCPU_INT_BASE + hwint;
}
-
/* 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, CPUCTR_IMASKBIT);
+ setup_irq_smtc(mips_cpu_timer_irq, irq, 0x100 << hwint);
#else
setup_irq(mips_cpu_timer_irq, irq);
#endif /* CONFIG_MIPS_MT_SMTC */
-
#ifdef CONFIG_SMP
- /* irq_desc(riptor) is a global resource, when the interrupt overlaps
- on seperate cpu's the first one tries to handle the second interrupt.
- The effect is that the int remains disabled on the second cpu.
- Mark the interrupt with IRQ_PER_CPU to avoid any confusion */
- irq_desc[mips_cpu_timer_irq].status |= IRQ_PER_CPU;
set_irq_handler(mips_cpu_timer_irq, handle_percpu_irq);
#endif
+
+ plat_perf_setup(&perf_irqaction);
}
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c
index 1cd830e3d93..1668cc21d5b 100644
--- a/arch/mips/mips-boards/malta/malta_int.c
+++ b/arch/mips/mips-boards/malta/malta_int.c
@@ -53,25 +53,19 @@ static inline int mips_pcibios_iack(void)
* Determine highest priority pending interrupt by performing
* a PCI Interrupt Acknowledge cycle.
*/
- switch(mips_revision_corid) {
- case MIPS_REVISION_CORID_CORE_MSC:
- case MIPS_REVISION_CORID_CORE_FPGA2:
- case MIPS_REVISION_CORID_CORE_FPGA3:
- case MIPS_REVISION_CORID_CORE_24K:
- case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+ switch (mips_revision_sconid) {
+ case MIPS_REVISION_SCON_SOCIT:
+ case MIPS_REVISION_SCON_ROCIT:
+ case MIPS_REVISION_SCON_SOCITSC:
+ case MIPS_REVISION_SCON_SOCITSCP:
MSC_READ(MSC01_PCI_IACK, irq);
irq &= 0xff;
break;
- case MIPS_REVISION_CORID_QED_RM5261:
- case MIPS_REVISION_CORID_CORE_LV:
- case MIPS_REVISION_CORID_CORE_FPGA:
- case MIPS_REVISION_CORID_CORE_FPGAR2:
+ case MIPS_REVISION_SCON_GT64120:
irq = GT_READ(GT_PCI0_IACK_OFS);
irq &= 0xff;
break;
- case MIPS_REVISION_CORID_BONITO64:
- case MIPS_REVISION_CORID_CORE_20K:
- case MIPS_REVISION_CORID_CORE_EMUL_BON:
+ case MIPS_REVISION_SCON_BONITO:
/* The following will generate a PCI IACK cycle on the
* Bonito controller. It's a little bit kludgy, but it
* was the easiest way to implement it in hardware at
@@ -89,7 +83,7 @@ static inline int mips_pcibios_iack(void)
BONITO_PCIMAP_CFG = 0;
break;
default:
- printk("Unknown Core card, don't know the system controller.\n");
+ printk("Unknown system controller.\n");
return -1;
}
return irq;
@@ -144,27 +138,21 @@ static void corehi_irqdispatch(void)
Do it for the others too.
*/
- switch(mips_revision_corid) {
- case MIPS_REVISION_CORID_CORE_MSC:
- case MIPS_REVISION_CORID_CORE_FPGA2:
- case MIPS_REVISION_CORID_CORE_FPGA3:
- case MIPS_REVISION_CORID_CORE_24K:
- case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+ switch (mips_revision_sconid) {
+ case MIPS_REVISION_SCON_SOCIT:
+ case MIPS_REVISION_SCON_ROCIT:
+ case MIPS_REVISION_SCON_SOCITSC:
+ case MIPS_REVISION_SCON_SOCITSCP:
ll_msc_irq();
break;
- case MIPS_REVISION_CORID_QED_RM5261:
- case MIPS_REVISION_CORID_CORE_LV:
- case MIPS_REVISION_CORID_CORE_FPGA:
- case MIPS_REVISION_CORID_CORE_FPGAR2:
+ case MIPS_REVISION_SCON_GT64120:
intrcause = GT_READ(GT_INTRCAUSE_OFS);
datalo = GT_READ(GT_CPUERR_ADDRLO_OFS);
datahi = GT_READ(GT_CPUERR_ADDRHI_OFS);
printk("GT_INTRCAUSE = %08x\n", intrcause);
printk("GT_CPUERR_ADDR = %02x%08x\n", datahi, datalo);
break;
- case MIPS_REVISION_CORID_BONITO64:
- case MIPS_REVISION_CORID_CORE_20K:
- case MIPS_REVISION_CORID_CORE_EMUL_BON:
+ case MIPS_REVISION_SCON_BONITO:
pcibadaddr = BONITO_PCIBADADDR;
pcimstat = BONITO_PCIMSTAT;
intisr = BONITO_INTISR;
diff --git a/arch/mips/mips-boards/malta/malta_setup.c b/arch/mips/mips-boards/malta/malta_setup.c
index c14b7bf8995..8f1b78dfd89 100644
--- a/arch/mips/mips-boards/malta/malta_setup.c
+++ b/arch/mips/mips-boards/malta/malta_setup.c
@@ -103,9 +103,7 @@ void __init plat_mem_setup(void)
kgdb_config ();
#endif
- if ((mips_revision_corid == MIPS_REVISION_CORID_BONITO64) ||
- (mips_revision_corid == MIPS_REVISION_CORID_CORE_20K) ||
- (mips_revision_corid == MIPS_REVISION_CORID_CORE_EMUL_BON)) {
+ if (mips_revision_sconid == MIPS_REVISION_SCON_BONITO) {
char *argptr;
argptr = prom_getcmdline();
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 4f94fa261aa..1ea5c9c1010 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -177,7 +177,10 @@ static int mipsxx_perfcount_handler(void)
unsigned int counters = op_model_mipsxx_ops.num_counters;
unsigned int control;
unsigned int counter;
- int handled = 0;
+ int handled = IRQ_NONE;
+
+ if (cpu_has_mips_r2 && !(read_c0_cause() & (1 << 26)))
+ return handled;
switch (counters) {
#define HANDLE_COUNTER(n) \
@@ -188,7 +191,7 @@ static int mipsxx_perfcount_handler(void)
(counter & M_COUNTER_OVERFLOW)) { \
oprofile_add_sample(get_irq_regs(), n); \
w_c0_perfcntr ## n(reg.counter[n]); \
- handled = 1; \
+ handled = IRQ_HANDLED; \
}
HANDLE_COUNTER(3)
HANDLE_COUNTER(2)
diff --git a/include/asm-mips/mips-boards/generic.h b/include/asm-mips/mips-boards/generic.h
index b98f1658cfd..c8ebcc3e126 100644
--- a/include/asm-mips/mips-boards/generic.h
+++ b/include/asm-mips/mips-boards/generic.h
@@ -73,12 +73,28 @@
* CoreEMUL with Bonito System Controller is treated like a Core20K
* CoreEMUL with SOC-it 101 System Controller is treated like a CoreMSC
*/
-#define MIPS_REVISION_CORID_CORE_EMUL_BON 0x63
-#define MIPS_REVISION_CORID_CORE_EMUL_MSC 0x65
+#define MIPS_REVISION_CORID_CORE_EMUL_BON -1
+#define MIPS_REVISION_CORID_CORE_EMUL_MSC -2
#define MIPS_REVISION_CORID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 10) & 0x3f)
-extern unsigned int mips_revision_corid;
+extern int mips_revision_corid;
+
+#define MIPS_REVISION_SCON_OTHER 0
+#define MIPS_REVISION_SCON_SOCITSC 1
+#define MIPS_REVISION_SCON_SOCITSCP 2
+
+/* Artificial SCON defines for MIPS_REVISION_SCON_OTHER */
+#define MIPS_REVISION_SCON_UNKNOWN -1
+#define MIPS_REVISION_SCON_GT64120 -2
+#define MIPS_REVISION_SCON_BONITO -3
+#define MIPS_REVISION_SCON_BRTL -4
+#define MIPS_REVISION_SCON_SOCIT -5
+#define MIPS_REVISION_SCON_ROCIT -6
+
+#define MIPS_REVISION_SCONID (((*(volatile u32 *)ioremap(MIPS_REVISION_REG, 4)) >> 24) & 0xff)
+
+extern int mips_revision_sconid;
#ifdef CONFIG_PCI
extern void mips_pcibios_init(void);
diff --git a/include/asm-mips/mips-boards/msc01_pci.h b/include/asm-mips/mips-boards/msc01_pci.h
index 8eaefb837b9..e036b7dd6de 100644
--- a/include/asm-mips/mips-boards/msc01_pci.h
+++ b/include/asm-mips/mips-boards/msc01_pci.h
@@ -208,6 +208,7 @@
* latter, they should be moved elsewhere.
*/
#define MIPS_MSC01_PCI_REG_BASE 0x1bd00000
+#define MIPS_SOCITSC_PCI_REG_BASE 0x1ff10000
extern unsigned long _pcictrl_msc;