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[SPARC64]: Convert sun4v virtual-device layer to in-kernel PROM device tree. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-06-21 22:56:20 -07:00
parent 27cc64c7cc
commit 6760d28bc6
3 changed files with 55 additions and 87 deletions
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108
arch/sparc64/kernel/devices.c
View File

@ -33,7 +33,7 @@ extern void cpu_probe(void);
extern void central_probe(void);
u32 sun4v_vdev_devhandle;
int sun4v_vdev_root;
struct device_node *sun4v_vdev_root;
struct vdev_intmap {
unsigned int phys;
@ -50,102 +50,68 @@ struct vdev_intmask {
static struct vdev_intmap *vdev_intmap;
static int vdev_num_intmap;
static struct vdev_intmask vdev_intmask;
static struct vdev_intmask *vdev_intmask;
static void __init sun4v_virtual_device_probe(void)
{
struct linux_prom64_registers regs;
struct vdev_intmap *ip;
int node, sz, err;
struct linux_prom64_registers *regs;
struct property *prop;
struct device_node *dp;
int sz;
if (tlb_type != hypervisor)
return;
node = prom_getchild(prom_root_node);
node = prom_searchsiblings(node, "virtual-devices");
if (!node) {
dp = of_find_node_by_name(NULL, "virtual-devices");
if (!dp) {
prom_printf("SUN4V: Fatal error, no virtual-devices node.\n");
prom_halt();
}
sun4v_vdev_root = node;
sun4v_vdev_root = dp;
prom_getproperty(node, "reg", (char *)&regs, sizeof(regs));
sun4v_vdev_devhandle = (regs.phys_addr >> 32UL) & 0x0fffffff;
prop = of_find_property(dp, "reg", NULL);
regs = prop->value;
sun4v_vdev_devhandle = (regs[0].phys_addr >> 32UL) & 0x0fffffff;
sz = prom_getproplen(node, "interrupt-map");
if (sz <= 0) {
prom_printf("SUN4V: Error, no vdev interrupt-map.\n");
prom_halt();
prop = of_find_property(dp, "interrupt-map", &sz);
vdev_intmap = prop->value;
vdev_num_intmap = sz / sizeof(struct vdev_intmap);
prop = of_find_property(dp, "interrupt-map-mask", NULL);
vdev_intmask = prop->value;
printk("%s: Virtual Device Bus devhandle[%x]\n",
dp->full_name, sun4v_vdev_devhandle);
}
if ((sz % sizeof(*ip)) != 0) {
prom_printf("SUN4V: Bogus interrupt-map property size %d\n",
sz);
prom_halt();
}
vdev_intmap = ip = alloc_bootmem_low_pages(sz);
if (!vdev_intmap) {
prom_printf("SUN4V: Error, cannot allocate vdev_intmap.\n");
prom_halt();
}
err = prom_getproperty(node, "interrupt-map", (char *) ip, sz);
if (err == -1) {
prom_printf("SUN4V: Fatal error, no vdev interrupt-map.\n");
prom_halt();
}
if (err != sz) {
prom_printf("SUN4V: Inconsistent interrupt-map size, "
"proplen(%d) vs getprop(%d).\n", sz,err);
prom_halt();
}
vdev_num_intmap = err / sizeof(*ip);
err = prom_getproperty(node, "interrupt-map-mask",
(char *) &vdev_intmask,
sizeof(vdev_intmask));
if (err <= 0) {
prom_printf("SUN4V: Fatal error, no vdev "
"interrupt-map-mask.\n");
prom_halt();
}
if (err % sizeof(vdev_intmask)) {
prom_printf("SUN4V: Bogus interrupt-map-mask "
"property size %d\n", err);
prom_halt();
}
printk("SUN4V: virtual-devices devhandle[%x]\n",
sun4v_vdev_devhandle);
}
unsigned int sun4v_vdev_device_interrupt(unsigned int dev_node)
unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node)
{
struct property *prop;
unsigned int irq, reg;
int err, i;
int i;
err = prom_getproperty(dev_node, "interrupts",
(char *) &irq, sizeof(irq));
if (err <= 0) {
prop = of_find_property(dev_node, "interrupts", NULL);
if (!prop) {
printk("VDEV: Cannot get \"interrupts\" "
"property for OBP node %x\n", dev_node);
"property for OBP node %s\n",
dev_node->full_name);
return 0;
}
irq = *(unsigned int *) prop->value;
err = prom_getproperty(dev_node, "reg",
(char *) &reg, sizeof(reg));
if (err <= 0) {
prop = of_find_property(dev_node, "reg", NULL);
if (!prop) {
printk("VDEV: Cannot get \"reg\" "
"property for OBP node %x\n", dev_node);
"property for OBP node %s\n",
dev_node->full_name);
return 0;
}
reg = *(unsigned int *) prop->value;
for (i = 0; i < vdev_num_intmap; i++) {
if (vdev_intmap[i].phys == (reg & vdev_intmask.phys) &&
vdev_intmap[i].irq == (irq & vdev_intmask.interrupt)) {
if (vdev_intmap[i].phys == (reg & vdev_intmask->phys) &&
vdev_intmap[i].irq == (irq & vdev_intmask->interrupt)) {
irq = vdev_intmap[i].cinterrupt;
break;
}
@ -153,7 +119,7 @@ unsigned int sun4v_vdev_device_interrupt(unsigned int dev_node)
if (i == vdev_num_intmap) {
printk("VDEV: No matching interrupt map entry "
"for OBP node %x\n", dev_node);
"for OBP node %s\n", dev_node->full_name);
return 0;
}

33
drivers/serial/sunhv.c
View File

@ -427,31 +427,32 @@ static int __init hv_console_compatible(char *buf, int len)
static unsigned int __init get_interrupt(void)
{
const char *cons_str = "console";
const char *compat_str = "compatible";
int node = prom_getchild(sun4v_vdev_root);
char buf[64];
int err, len;
struct device_node *dev_node;
node = prom_searchsiblings(node, cons_str);
if (!node)
return 0;
dev_node = sun4v_vdev_root->child;
while (dev_node != NULL) {
struct property *prop;
len = prom_getproplen(node, compat_str);
if (len == 0 || len == -1)
return 0;
if (strcmp(dev_node->name, "console"))
goto next_sibling;
err = prom_getproperty(node, compat_str, buf, 64);
if (err == -1)
return 0;
prop = of_find_property(dev_node, "compatible", NULL);
if (!prop)
goto next_sibling;
if (!hv_console_compatible(buf, len))
if (hv_console_compatible(prop->value, prop->length))
break;
next_sibling:
dev_node = dev_node->sibling;
}
if (!dev_node)
return 0;
/* Ok, the this is the OBP node for the sun4v hypervisor
* console device. Decode the interrupt.
*/
return sun4v_vdev_device_interrupt(node);
return sun4v_vdev_device_interrupt(dev_node);
}
static int __init sunhv_init(void)

5
include/asm-sparc64/vdev.h
View File

@ -7,10 +7,11 @@
#define _SPARC64_VDEV_H
#include <linux/types.h>
#include <asm/prom.h>
extern u32 sun4v_vdev_devhandle;
extern int sun4v_vdev_root;
extern struct device_node *sun4v_vdev_root;
extern unsigned int sun4v_vdev_device_interrupt(unsigned int);
extern unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node);
#endif /* !(_SPARC64_VDEV_H) */