Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasemi

[linux-2.6] / arch / powerpc / sysdev / mpic.c

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index f74fe26b787e1c81b423e8359e1bdc0e8d0e6e8d..f88ff09c47116002e2760ed9d0eb64f4b627ad8d 100644 (file)
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -83,6 +83,7 @@ static u32 mpic_infos[][MPIC_IDX_END] = {
                MPIC_CPU_WHOAMI,
                MPIC_CPU_INTACK,
                MPIC_CPU_EOI,
+               MPIC_CPU_MCACK,
 
                MPIC_IRQ_BASE,
                MPIC_IRQ_STRIDE,
@@ -121,6 +122,7 @@ static u32 mpic_infos[][MPIC_IDX_END] = {
                TSI108_CPU_WHOAMI,
                TSI108_CPU_INTACK,
                TSI108_CPU_EOI,
+               TSI108_CPU_MCACK,
 
                TSI108_IRQ_BASE,
                TSI108_IRQ_STRIDE,
@@ -1126,6 +1128,11 @@ struct mpic * __init mpic_alloc(struct device_node *node,
                        mb();
        }
 
+       if (flags & MPIC_ENABLE_MCK)
+               mpic_write(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0),
+                          mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0))
+                          | MPIC_GREG_GCONF_MCK);
+
        /* Read feature register, calculate num CPUs and, for non-ISU
         * MPICs, num sources as well. On ISU MPICs, sources are counted
         * as ISUs are added
@@ -1272,6 +1279,11 @@ void __init mpic_init(struct mpic *mpic)
                           mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0))
                           | MPIC_GREG_GCONF_8259_PTHROU_DIS);
 
+       if (mpic->flags & MPIC_NO_BIAS)
+               mpic_write(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0),
+                       mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0))
+                       | MPIC_GREG_GCONF_NO_BIAS);
+
        /* Set current processor priority to 0 */
        mpic_cpu_write(MPIC_INFO(CPU_CURRENT_TASK_PRI), 0);
 
@@ -1438,13 +1450,13 @@ void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask)
                       mpic_physmask(cpu_mask & cpus_addr(cpu_online_map)[0]));
 }
 
-unsigned int mpic_get_one_irq(struct mpic *mpic)
+static unsigned int _mpic_get_one_irq(struct mpic *mpic, int reg)
 {
        u32 src;
 
-       src = mpic_cpu_read(MPIC_INFO(CPU_INTACK)) & MPIC_INFO(VECPRI_VECTOR_MASK);
+       src = mpic_cpu_read(reg) & MPIC_INFO(VECPRI_VECTOR_MASK);
 #ifdef DEBUG_LOW
-       DBG("%s: get_one_irq(): %d\n", mpic->name, src);
+       DBG("%s: get_one_irq(reg 0x%x): %d\n", mpic->name, reg, src);
 #endif
        if (unlikely(src == mpic->spurious_vec)) {
                if (mpic->flags & MPIC_SPV_EOI)
@@ -1462,6 +1474,11 @@ unsigned int mpic_get_one_irq(struct mpic *mpic)
        return irq_linear_revmap(mpic->irqhost, src);
 }
 
+unsigned int mpic_get_one_irq(struct mpic *mpic)
+{
+       return _mpic_get_one_irq(mpic, MPIC_INFO(CPU_INTACK));
+}
+
 unsigned int mpic_get_irq(void)
 {
        struct mpic *mpic = mpic_primary;
@@ -1471,6 +1488,14 @@ unsigned int mpic_get_irq(void)
        return mpic_get_one_irq(mpic);
 }
 
+unsigned int mpic_get_mcirq(void)
+{
+       struct mpic *mpic = mpic_primary;
+
+       BUG_ON(mpic == NULL);
+
+       return _mpic_get_one_irq(mpic, MPIC_INFO(CPU_MCACK));
+}
 
 #ifdef CONFIG_SMP
 void mpic_request_ipis(void)