Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Kill sun4v virtual device layer. [SERIAL] sunhv: Convert to of_driver layer. [SPARC64]: Mask out top 8-bits in physical address when building resources. [SERIAL] sunsu: Missing return statement in su_probe().
This commit is contained in:
Linus Torvalds
commit
9262e9149f
6 changed files with 99 additions and 209 deletions
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@ -20,8 +20,6 @@
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#include <asm/spitfire.h>
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#include <asm/timer.h>
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#include <asm/cpudata.h>
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#include <asm/vdev.h>
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#include <asm/irq.h>
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/* Used to synchronize acceses to NatSemi SUPER I/O chip configure
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* operations in asm/ns87303.h
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@ -31,100 +29,6 @@ DEFINE_SPINLOCK(ns87303_lock);
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extern void cpu_probe(void);
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extern void central_probe(void);
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u32 sun4v_vdev_devhandle;
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struct device_node *sun4v_vdev_root;
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struct vdev_intmap {
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unsigned int phys;
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unsigned int irq;
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unsigned int cnode;
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unsigned int cinterrupt;
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};
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struct vdev_intmask {
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unsigned int phys;
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unsigned int interrupt;
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unsigned int __unused;
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};
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static struct vdev_intmap *vdev_intmap;
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static int vdev_num_intmap;
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static struct vdev_intmask *vdev_intmask;
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static void __init sun4v_virtual_device_probe(void)
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{
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struct linux_prom64_registers *regs;
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struct property *prop;
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struct device_node *dp;
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int sz;
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if (tlb_type != hypervisor)
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return;
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dp = of_find_node_by_name(NULL, "virtual-devices");
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if (!dp) {
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prom_printf("SUN4V: Fatal error, no virtual-devices node.\n");
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prom_halt();
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}
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sun4v_vdev_root = dp;
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prop = of_find_property(dp, "reg", NULL);
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regs = prop->value;
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sun4v_vdev_devhandle = (regs[0].phys_addr >> 32UL) & 0x0fffffff;
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prop = of_find_property(dp, "interrupt-map", &sz);
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vdev_intmap = prop->value;
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vdev_num_intmap = sz / sizeof(struct vdev_intmap);
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prop = of_find_property(dp, "interrupt-map-mask", NULL);
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vdev_intmask = prop->value;
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printk("%s: Virtual Device Bus devhandle[%x]\n",
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dp->full_name, sun4v_vdev_devhandle);
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}
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unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node)
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{
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struct property *prop;
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unsigned int irq, reg;
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int i;
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prop = of_find_property(dev_node, "interrupts", NULL);
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if (!prop) {
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printk("VDEV: Cannot get \"interrupts\" "
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"property for OBP node %s\n",
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dev_node->full_name);
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return 0;
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}
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irq = *(unsigned int *) prop->value;
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prop = of_find_property(dev_node, "reg", NULL);
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if (!prop) {
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printk("VDEV: Cannot get \"reg\" "
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"property for OBP node %s\n",
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dev_node->full_name);
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return 0;
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}
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reg = *(unsigned int *) prop->value;
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for (i = 0; i < vdev_num_intmap; i++) {
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if (vdev_intmap[i].phys == (reg & vdev_intmask->phys) &&
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vdev_intmap[i].irq == (irq & vdev_intmask->interrupt)) {
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irq = vdev_intmap[i].cinterrupt;
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break;
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}
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}
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if (i == vdev_num_intmap) {
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printk("VDEV: No matching interrupt map entry "
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"for OBP node %s\n", dev_node->full_name);
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return 0;
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}
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return sun4v_build_irq(sun4v_vdev_devhandle, irq);
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}
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static const char *cpu_mid_prop(void)
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{
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if (tlb_type == spitfire)
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@ -289,7 +193,6 @@ void __init device_scan(void)
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}
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#endif
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sun4v_virtual_device_probe();
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central_probe();
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cpu_probe();
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@ -602,6 +602,9 @@ static void __init build_device_resources(struct of_device *op,
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build_res:
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memset(r, 0, sizeof(*r));
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if (result != OF_BAD_ADDR) {
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if (tlb_type == hypervisor)
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result &= 0x0fffffffffffffffUL;
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r->start = result;
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r->end = result + size - 1;
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r->flags = flags;
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@ -1008,6 +1008,27 @@ static struct irq_trans pci_irq_trans_table[] = {
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};
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#endif
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static unsigned int sun4v_vdev_irq_build(struct device_node *dp,
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unsigned int devino,
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void *_data)
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{
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u32 devhandle = (u32) (unsigned long) _data;
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return sun4v_build_irq(devhandle, devino);
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}
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static void sun4v_vdev_irq_trans_init(struct device_node *dp)
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{
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struct linux_prom64_registers *regs;
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dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
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dp->irq_trans->irq_build = sun4v_vdev_irq_build;
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regs = of_get_property(dp, "reg", NULL);
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dp->irq_trans->data = (void *) (unsigned long)
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((regs->phys_addr >> 32UL) & 0x0fffffff);
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}
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static void irq_trans_init(struct device_node *dp)
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{
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const char *model;
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@ -1034,6 +1055,8 @@ static void irq_trans_init(struct device_node *dp)
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#endif
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if (!strcmp(dp->name, "central"))
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return central_irq_trans_init(dp->child);
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if (!strcmp(dp->name, "virtual-devices"))
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return sun4v_vdev_irq_trans_init(dp);
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}
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static int is_root_node(const struct device_node *dp)
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@ -20,8 +20,8 @@
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#include <asm/hypervisor.h>
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#include <asm/spitfire.h>
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#include <asm/vdev.h>
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#include <asm/oplib.h>
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#include <asm/prom.h>
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#include <asm/of_device.h>
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#include <asm/irq.h>
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#if defined(CONFIG_MAGIC_SYSRQ)
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@ -407,144 +407,120 @@ static inline struct console *SUNHV_CONSOLE(void)
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return &sunhv_console;
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}
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static int __init hv_console_compatible(char *buf, int len)
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{
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while (len) {
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int this_len;
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if (!strcmp(buf, "qcn"))
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return 1;
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this_len = strlen(buf) + 1;
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buf += this_len;
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len -= this_len;
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}
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return 0;
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}
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static unsigned int __init get_interrupt(void)
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{
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struct device_node *dev_node;
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dev_node = sun4v_vdev_root->child;
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while (dev_node != NULL) {
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struct property *prop;
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if (strcmp(dev_node->name, "console"))
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goto next_sibling;
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prop = of_find_property(dev_node, "compatible", NULL);
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if (!prop)
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goto next_sibling;
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if (hv_console_compatible(prop->value, prop->length))
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break;
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next_sibling:
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dev_node = dev_node->sibling;
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}
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if (!dev_node)
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return 0;
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/* Ok, the this is the OBP node for the sun4v hypervisor
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* console device. Decode the interrupt.
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*/
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return sun4v_vdev_device_interrupt(dev_node);
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}
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static int __init sunhv_init(void)
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static int __devinit hv_probe(struct of_device *op, const struct of_device_id *match)
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{
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struct uart_port *port;
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int ret;
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int err;
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if (tlb_type != hypervisor)
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if (op->irqs[0] == 0xffffffff)
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return -ENODEV;
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port = kmalloc(sizeof(struct uart_port), GFP_KERNEL);
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port = kzalloc(sizeof(struct uart_port), GFP_KERNEL);
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if (unlikely(!port))
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return -ENOMEM;
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memset(port, 0, sizeof(struct uart_port));
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sunhv_port = port;
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port->line = 0;
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port->ops = &sunhv_pops;
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port->type = PORT_SUNHV;
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port->uartclk = ( 29491200 / 16 ); /* arbitrary */
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/* Set this just to make uart_configure_port() happy. */
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port->membase = (unsigned char __iomem *) __pa(port);
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port->irq = get_interrupt();
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if (!port->irq) {
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kfree(port);
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return -ENODEV;
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}
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port->irq = op->irqs[0];
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port->dev = &op->dev;
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sunhv_reg.minor = sunserial_current_minor;
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sunhv_reg.nr = 1;
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ret = uart_register_driver(&sunhv_reg);
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if (ret < 0) {
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printk(KERN_ERR "SUNHV: uart_register_driver() failed %d\n",
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ret);
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kfree(port);
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return ret;
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}
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err = uart_register_driver(&sunhv_reg);
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if (err)
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goto out_free_port;
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sunhv_reg.tty_driver->name_base = sunhv_reg.minor - 64;
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sunserial_current_minor += 1;
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sunhv_reg.cons = SUNHV_CONSOLE();
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sunhv_port = port;
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err = uart_add_one_port(&sunhv_reg, port);
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if (err)
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goto out_unregister_driver;
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ret = uart_add_one_port(&sunhv_reg, port);
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if (ret < 0) {
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printk(KERN_ERR "SUNHV: uart_add_one_port() failed %d\n", ret);
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sunserial_current_minor -= 1;
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uart_unregister_driver(&sunhv_reg);
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kfree(port);
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sunhv_port = NULL;
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return -ENODEV;
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}
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err = request_irq(port->irq, sunhv_interrupt, 0, "hvcons", port);
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if (err)
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goto out_remove_port;
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if (request_irq(port->irq, sunhv_interrupt,
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SA_SHIRQ, "serial(sunhv)", port)) {
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printk(KERN_ERR "sunhv: Cannot register IRQ\n");
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uart_remove_one_port(&sunhv_reg, port);
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sunserial_current_minor -= 1;
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uart_unregister_driver(&sunhv_reg);
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kfree(port);
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sunhv_port = NULL;
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return -ENODEV;
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}
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dev_set_drvdata(&op->dev, port);
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return 0;
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out_remove_port:
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uart_remove_one_port(&sunhv_reg, port);
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out_unregister_driver:
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sunserial_current_minor -= 1;
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uart_unregister_driver(&sunhv_reg);
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out_free_port:
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kfree(port);
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sunhv_port = NULL;
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return err;
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}
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static void __exit sunhv_exit(void)
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static int __devexit hv_remove(struct of_device *dev)
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{
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struct uart_port *port = sunhv_port;
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BUG_ON(!port);
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struct uart_port *port = dev_get_drvdata(&dev->dev);
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free_irq(port->irq, port);
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uart_remove_one_port(&sunhv_reg, port);
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sunserial_current_minor -= 1;
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sunserial_current_minor -= 1;
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uart_unregister_driver(&sunhv_reg);
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kfree(sunhv_port);
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kfree(port);
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sunhv_port = NULL;
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dev_set_drvdata(&dev->dev, NULL);
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return 0;
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}
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static struct of_device_id hv_match[] = {
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{
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.name = "console",
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.compatible = "qcn",
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, hv_match);
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static struct of_platform_driver hv_driver = {
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.name = "hv",
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.match_table = hv_match,
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.probe = hv_probe,
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.remove = __devexit_p(hv_remove),
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};
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static int __init sunhv_init(void)
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{
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if (tlb_type != hypervisor)
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return -ENODEV;
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return of_register_driver(&hv_driver, &of_bus_type);
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}
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static void __exit sunhv_exit(void)
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{
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of_unregister_driver(&hv_driver);
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}
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module_init(sunhv_init);
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module_exit(sunhv_exit);
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MODULE_AUTHOR("David S. Miller");
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MODULE_DESCRIPTION("SUN4V Hypervisor console driver")
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MODULE_DESCRIPTION("SUN4V Hypervisor console driver");
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MODULE_VERSION("2.0");
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MODULE_LICENSE("GPL");
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@ -1438,6 +1438,8 @@ static int __devinit su_probe(struct of_device *op, const struct of_device_id *m
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err = sunsu_kbd_ms_init(up);
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if (err)
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goto out_unmap;
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return 0;
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}
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up->port.flags |= UPF_BOOT_AUTOCONF;
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@ -1,17 +0,0 @@
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/* vdev.h: SUN4V virtual device interfaces and defines.
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*
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* Copyright (C) 2006 David S. Miller <davem@davemloft.net>
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*/
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#ifndef _SPARC64_VDEV_H
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#define _SPARC64_VDEV_H
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#include <linux/types.h>
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#include <asm/prom.h>
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extern u32 sun4v_vdev_devhandle;
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extern struct device_node *sun4v_vdev_root;
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extern unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node);
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#endif /* !(_SPARC64_VDEV_H) */
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