Merge branch 'consolidate-clksrc-i8253' of master.kernel.org:~rmk/linux-2.6-arm into timers/clocksource

Conflicts:
	arch/ia64/kernel/cyclone.c
	arch/mips/kernel/i8253.c
	arch/x86/kernel/i8253.c

Reason: Resolve conflicts so further cleanups do not conflict further

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

10 files changed, 53 insertions, 136 deletions

diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile
index 0591038735af..d27df1d45da7 100644
--- a/arch/ia64/sn/kernel/Makefile
+++ b/arch/ia64/sn/kernel/Makefile
@@ -7,7 +7,7 @@
 # Copyright (C) 1999,2001-2006,2008 Silicon Graphics, Inc.  All Rights Reserved.
 #
 
-EXTRA_CFLAGS += -Iarch/ia64/sn/include
+ccflags-y := -Iarch/ia64/sn/include
 
 obj-y                           += setup.o bte.o bte_error.o irq.o mca.o idle.o \
                                    huberror.o io_acpi_init.o io_common.o \
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index 13c15d968098..81a1f4e6bcd8 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -23,11 +23,9 @@
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/sn_feature_sets.h>
 
-static void force_interrupt(int irq);
 static void register_intr_pda(struct sn_irq_info *sn_irq_info);
 static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
 
-int sn_force_interrupt_flag = 1;
 extern int sn_ioif_inited;
 struct list_head **sn_irq_lh;
 static DEFINE_SPINLOCK(sn_irq_info_lock); /* non-IRQ lock */
@@ -78,62 +76,40 @@ u64 sn_intr_redirect(nasid_t local_nasid, int local_widget,
         return ret_stuff.status;
 }
 
-static unsigned int sn_startup_irq(unsigned int irq)
+static unsigned int sn_startup_irq(struct irq_data *data)
 {
         return 0;
 }
 
-static void sn_shutdown_irq(unsigned int irq)
+static void sn_shutdown_irq(struct irq_data *data)
 {
 }
 
 extern void ia64_mca_register_cpev(int);
 
-static void sn_disable_irq(unsigned int irq)
+static void sn_disable_irq(struct irq_data *data)
 {
-        if (irq == local_vector_to_irq(IA64_CPE_VECTOR))
+        if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR))
                 ia64_mca_register_cpev(0);
 }
 
-static void sn_enable_irq(unsigned int irq)
+static void sn_enable_irq(struct irq_data *data)
 {
-        if (irq == local_vector_to_irq(IA64_CPE_VECTOR))
-                ia64_mca_register_cpev(irq);
+        if (data->irq == local_vector_to_irq(IA64_CPE_VECTOR))
+                ia64_mca_register_cpev(data->irq);
 }
 
-static void sn_ack_irq(unsigned int irq)
+static void sn_ack_irq(struct irq_data *data)
 {
         u64 event_occurred, mask;
+        unsigned int irq = data->irq & 0xff;
 
-        irq = irq & 0xff;
         event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED));
         mask = event_occurred & SH_ALL_INT_MASK;
         HUB_S((u64*)LOCAL_MMR_ADDR(SH_EVENT_OCCURRED_ALIAS), mask);
         __set_bit(irq, (volatile void *)pda->sn_in_service_ivecs);
 
-        move_native_irq(irq);
-}
-
-static void sn_end_irq(unsigned int irq)
-{
-        int ivec;
-        u64 event_occurred;
-
-        ivec = irq & 0xff;
-        if (ivec == SGI_UART_VECTOR) {
-                event_occurred = HUB_L((u64*)LOCAL_MMR_ADDR (SH_EVENT_OCCURRED));
-                /* If the UART bit is set here, we may have received an
-                 * interrupt from the UART that the driver missed.  To
-                 * make sure, we IPI ourselves to force us to look again.
-                 */
-                if (event_occurred & SH_EVENT_OCCURRED_UART_INT_MASK) {
-                        platform_send_ipi(smp_processor_id(), SGI_UART_VECTOR,
-                                          IA64_IPI_DM_INT, 0);
-                }
-        }
-        __clear_bit(ivec, (volatile void *)pda->sn_in_service_ivecs);
-        if (sn_force_interrupt_flag)
-                force_interrupt(irq);
+        irq_move_irq(data);
 }
 
 static void sn_irq_info_free(struct rcu_head *head);
@@ -228,9 +204,11 @@ finish_up:
         return new_irq_info;
 }
 
-static int sn_set_affinity_irq(unsigned int irq, const struct cpumask *mask)
+static int sn_set_affinity_irq(struct irq_data *data,
+                               const struct cpumask *mask, bool force)
 {
         struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
+        unsigned int irq = data->irq;
         nasid_t nasid;
         int slice;
 
@@ -249,7 +227,7 @@ void sn_set_err_irq_affinity(unsigned int irq)
 {
         /*
          * On systems which support CPU disabling (SHub2), all error interrupts
-         * are targetted at the boot CPU.
+         * are targeted at the boot CPU.
          */
         if (is_shub2() && sn_prom_feature_available(PRF_CPU_DISABLE_SUPPORT))
                 set_irq_affinity_info(irq, cpu_physical_id(0), 0);
@@ -259,26 +237,25 @@ void sn_set_err_irq_affinity(unsigned int irq) { }
 #endif
 
 static void
-sn_mask_irq(unsigned int irq)
+sn_mask_irq(struct irq_data *data)
 {
 }
 
 static void
-sn_unmask_irq(unsigned int irq)
+sn_unmask_irq(struct irq_data *data)
 {
 }
 
 struct irq_chip irq_type_sn = {
-        .name           = "SN hub",
-        .startup        = sn_startup_irq,
-        .shutdown       = sn_shutdown_irq,
-        .enable         = sn_enable_irq,
-        .disable        = sn_disable_irq,
-        .ack            = sn_ack_irq,
-        .end            = sn_end_irq,
-        .mask           = sn_mask_irq,
-        .unmask         = sn_unmask_irq,
-        .set_affinity   = sn_set_affinity_irq
+        .name                   = "SN hub",
+        .irq_startup            = sn_startup_irq,
+        .irq_shutdown           = sn_shutdown_irq,
+        .irq_enable             = sn_enable_irq,
+        .irq_disable            = sn_disable_irq,
+        .irq_ack                = sn_ack_irq,
+        .irq_mask               = sn_mask_irq,
+        .irq_unmask             = sn_unmask_irq,
+        .irq_set_affinity       = sn_set_affinity_irq
 };
 
 ia64_vector sn_irq_to_vector(int irq)
@@ -296,15 +273,13 @@ unsigned int sn_local_vector_to_irq(u8 vector)
 void sn_irq_init(void)
 {
         int i;
-        struct irq_desc *base_desc = irq_desc;
 
         ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR;
         ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR;
 
         for (i = 0; i < NR_IRQS; i++) {
-                if (base_desc[i].chip == &no_irq_chip) {
-                        base_desc[i].chip = &irq_type_sn;
-                }
+                if (irq_get_chip(i) == &no_irq_chip)
+                        irq_set_chip(i, &irq_type_sn);
         }
 }
 
@@ -378,7 +353,6 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
         int cpu = nasid_slice_to_cpuid(nasid, slice);
 #ifdef CONFIG_SMP
         int cpuphys;
-        struct irq_desc *desc;
 #endif
 
         pci_dev_get(pci_dev);
@@ -395,12 +369,11 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
 #ifdef CONFIG_SMP
         cpuphys = cpu_physical_id(cpu);
         set_irq_affinity_info(sn_irq_info->irq_irq, cpuphys, 0);
-        desc = irq_to_desc(sn_irq_info->irq_irq);
         /*
          * Affinity was set by the PROM, prevent it from
          * being reset by the request_irq() path.
          */
-        desc->status |= IRQ_AFFINITY_SET;
+        irqd_mark_affinity_was_set(irq_get_irq_data(sn_irq_info->irq_irq));
 #endif
 }
 
@@ -439,25 +412,11 @@ sn_call_force_intr_provider(struct sn_irq_info *sn_irq_info)
         pci_provider = sn_pci_provider[sn_irq_info->irq_bridge_type];
 
         /* Don't force an interrupt if the irq has been disabled */
-        if (!(irq_desc[sn_irq_info->irq_irq].status & IRQ_DISABLED) &&
+        if (!irqd_irq_disabled(irq_get_irq_data(sn_irq_info->irq_irq)) &&
             pci_provider && pci_provider->force_interrupt)
                 (*pci_provider->force_interrupt)(sn_irq_info);
 }
 
-static void force_interrupt(int irq)
-{
-        struct sn_irq_info *sn_irq_info;
-
-        if (!sn_ioif_inited)
-                return;
-
-        rcu_read_lock();
-        list_for_each_entry_rcu(sn_irq_info, sn_irq_lh[irq], list)
-                sn_call_force_intr_provider(sn_irq_info);
-
-        rcu_read_unlock();
-}
-
 /*
  * Check for lost interrupts.  If the PIC int_status reg. says that
  * an interrupt has been sent, but not handled, and the interrupt
@@ -476,7 +435,7 @@ static void sn_check_intr(int irq, struct sn_irq_info *sn_irq_info)
         /*
          * Bridge types attached to TIO (anything but PIC) do not need this WAR
          * since they do not target Shub II interrupt registers.  If that
-         * ever changes, this check needs to accomodate.
+         * ever changes, this check needs to accommodate.
          */
         if (sn_irq_info->irq_bridge_type != PCIIO_ASIC_TYPE_PIC)
                 return;
diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c
index a5e500f02853..2b98b9e088de 100644
--- a/arch/ia64/sn/kernel/msi_sn.c
+++ b/arch/ia64/sn/kernel/msi_sn.c
@@ -144,16 +144,16 @@ int sn_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *entry)
          */
         msg.data = 0x100 + irq;
 
-        set_irq_msi(irq, entry);
+        irq_set_msi_desc(irq, entry);
         write_msi_msg(irq, &msg);
-        set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
+        irq_set_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq);
 
         return 0;
 }
 
 #ifdef CONFIG_SMP
-static int sn_set_msi_irq_affinity(unsigned int irq,
-                                    const struct cpumask *cpu_mask)
+static int sn_set_msi_irq_affinity(struct irq_data *data,
+                                   const struct cpumask *cpu_mask, bool force)
 {
         struct msi_msg msg;
         int slice;
@@ -164,7 +164,7 @@ static int sn_set_msi_irq_affinity(unsigned int irq,
         struct sn_irq_info *sn_irq_info;
         struct sn_irq_info *new_irq_info;
         struct sn_pcibus_provider *provider;
-        unsigned int cpu;
+        unsigned int cpu, irq = data->irq;
 
         cpu = cpumask_first(cpu_mask);
         sn_irq_info = sn_msi_info[irq].sn_irq_info;
@@ -206,33 +206,33 @@ static int sn_set_msi_irq_affinity(unsigned int irq,
         msg.address_lo = (u32)(bus_addr & 0x00000000ffffffff);
 
         write_msi_msg(irq, &msg);
-        cpumask_copy(irq_desc[irq].affinity, cpu_mask);
+        cpumask_copy(data->affinity, cpu_mask);
 
         return 0;
 }
 #endif /* CONFIG_SMP */
 
-static void sn_ack_msi_irq(unsigned int irq)
+static void sn_ack_msi_irq(struct irq_data *data)
 {
-        move_native_irq(irq);
+        irq_move_irq(data);
         ia64_eoi();
 }
 
-static int sn_msi_retrigger_irq(unsigned int irq)
+static int sn_msi_retrigger_irq(struct irq_data *data)
 {
-        unsigned int vector = irq;
+        unsigned int vector = data->irq;
         ia64_resend_irq(vector);
 
         return 1;
 }
 
 static struct irq_chip sn_msi_chip = {
-        .name           = "PCI-MSI",
-        .irq_mask       = mask_msi_irq,
-        .irq_unmask     = unmask_msi_irq,
-        .ack            = sn_ack_msi_irq,
+        .name                   = "PCI-MSI",
+        .irq_mask               = mask_msi_irq,
+        .irq_unmask             = unmask_msi_irq,
+        .irq_ack                = sn_ack_msi_irq,
 #ifdef CONFIG_SMP
-        .set_affinity   = sn_set_msi_irq_affinity,
+        .irq_set_affinity       = sn_set_msi_irq_affinity,
 #endif
-        .retrigger      = sn_msi_retrigger_irq,
+        .irq_retrigger          = sn_msi_retrigger_irq,
 };
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index dbc4cbecb5ed..77db0b514fa4 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -592,7 +592,7 @@ void __cpuinit sn_cpu_init(void)
         /*
          * Don't check status. The SAL call is not supported on all PROMs
          * but a failure is harmless.
-         * Architechtuallly, cpu_init is always called twice on cpu 0. We
+         * Architecturally, cpu_init is always called twice on cpu 0. We
          * should set cpu_number on cpu 0 once.
          */
         if (cpuid == 0) {
diff --git a/arch/ia64/sn/kernel/sn2/Makefile b/arch/ia64/sn/kernel/sn2/Makefile
index 08e6565dc908..3d09108d4277 100644
--- a/arch/ia64/sn/kernel/sn2/Makefile
+++ b/arch/ia64/sn/kernel/sn2/Makefile
@@ -9,7 +9,7 @@
 # sn2 specific kernel files
 #
 
-EXTRA_CFLAGS += -Iarch/ia64/sn/include
+ccflags-y := -Iarch/ia64/sn/include
 
 obj-y += cache.o io.o ptc_deadlock.o sn2_smp.o sn_proc_fs.o \
          prominfo_proc.o timer.o timer_interrupt.o sn_hwperf.o
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index c76d8dc3aea3..7aab87f48060 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -45,38 +45,6 @@ static int licenseID_open(struct inode *inode, struct file *file)
         return single_open(file, licenseID_show, NULL);
 }
 
-/*
- * Enable forced interrupt by default.
- * When set, the sn interrupt handler writes the force interrupt register on
- * the bridge chip.  The hardware will then send an interrupt message if the
- * interrupt line is active.  This mimics a level sensitive interrupt.
- */
-extern int sn_force_interrupt_flag;
-
-static int sn_force_interrupt_show(struct seq_file *s, void *p)
-{
-        seq_printf(s, "Force interrupt is %s\n",
-                sn_force_interrupt_flag ? "enabled" : "disabled");
-        return 0;
-}
-
-static ssize_t sn_force_interrupt_write_proc(struct file *file,
-                const char __user *buffer, size_t count, loff_t *data)
-{
-        char val;
-
-        if (copy_from_user(&val, buffer, 1))
-                return -EFAULT;
-
-        sn_force_interrupt_flag = (val == '0') ? 0 : 1;
-        return count;
-}
-
-static int sn_force_interrupt_open(struct inode *inode, struct file *file)
-{
-        return single_open(file, sn_force_interrupt_show, NULL);
-}
-
 static int coherence_id_show(struct seq_file *s, void *p)
 {
         seq_printf(s, "%d\n", partition_coherence_id());
@@ -114,14 +82,6 @@ static const struct file_operations proc_license_id_fops = {
         .release        = single_release,
 };
 
-static const struct file_operations proc_sn_force_intr_fops = {
-        .open           = sn_force_interrupt_open,
-        .read           = seq_read,
-        .write          = sn_force_interrupt_write_proc,
-        .llseek         = seq_lseek,
-        .release        = single_release,
-};
-
 static const struct file_operations proc_coherence_id_fops = {
         .open           = coherence_id_open,
         .read           = seq_read,
@@ -149,8 +109,6 @@ void register_sn_procfs(void)
         proc_create("system_serial_number", 0444, sgi_proc_dir,
                     &proc_system_sn_fops);
         proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops);
-        proc_create("sn_force_interrupt", 0644, sgi_proc_dir,
-                    &proc_sn_force_intr_fops);
         proc_create("coherence_id", 0444, sgi_proc_dir,
                     &proc_coherence_id_fops);
         proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops);
diff --git a/arch/ia64/sn/pci/Makefile b/arch/ia64/sn/pci/Makefile
index ad4ef34dfe26..df2a90145426 100644
--- a/arch/ia64/sn/pci/Makefile
+++ b/arch/ia64/sn/pci/Makefile
@@ -7,6 +7,6 @@
 #
 # Makefile for the sn pci general routines.
 
-EXTRA_CFLAGS += -Iarch/ia64/sn/include
+ccflags-y := -Iarch/ia64/sn/include
 
 obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/
diff --git a/arch/ia64/sn/pci/pcibr/Makefile b/arch/ia64/sn/pci/pcibr/Makefile
index 01192d3247dd..396bcae36309 100644
--- a/arch/ia64/sn/pci/pcibr/Makefile
+++ b/arch/ia64/sn/pci/pcibr/Makefile
@@ -7,7 +7,7 @@
 #
 # Makefile for the sn2 io routines.
 
-EXTRA_CFLAGS += -Iarch/ia64/sn/include
+ccflags-y := -Iarch/ia64/sn/include
 
 obj-y                           +=  pcibr_dma.o pcibr_reg.o \
                                     pcibr_ate.o pcibr_provider.o
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
index c659ad5613a0..33def666a664 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
@@ -227,7 +227,7 @@ pcibr_dma_unmap(struct pci_dev *hwdev, dma_addr_t dma_handle, int direction)
  * after doing the read.  For PIC this routine then forces a fake interrupt
  * on another line, which is logically associated with the slot that the PIO
  * is addressed to.  It then spins while watching the memory location that
- * the interrupt is targetted to.  When the interrupt response arrives, we 
+ * the interrupt is targeted to.  When the interrupt response arrives, we 
  * are sure that the DMA has landed in memory and it is safe for the driver
  * to proceed.  For TIOCP use the Device(x) Write Request Buffer Flush 
  * Bridge register since it ensures the data has entered the coherence domain,
diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index 4d4536e3b6f3..9c271be9919a 100644
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -509,7 +509,7 @@ tioca_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
  * use the GART mapped mode.
  */
 static u64
-tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
+tioca_dma_map(struct pci_dev *pdev, unsigned long paddr, size_t byte_count, int dma_flags)
 {
         u64 mapaddr;