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Pull add-mmio-to-proc-iomem into release branch

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This commit is contained in:
Tony Luck 2005-11-10 10:40:32 -08:00
commit 16e85d1a31
1 changed files with 82 additions and 24 deletions
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106
arch/ia64/pci/pci.c
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@ -95,7 +95,7 @@ pci_sal_write (unsigned int seg, unsigned int bus, unsigned int devfn,
}
static struct pci_raw_ops pci_sal_ops = {
.read = pci_sal_read,
.read = pci_sal_read,
.write = pci_sal_write
};
@ -137,35 +137,98 @@ alloc_pci_controller (int seg)
return controller;
}
static u64 __devinit
add_io_space (struct acpi_resource_address64 *addr)
struct pci_root_info {
struct pci_controller *controller;
char *name;
};
static unsigned int
new_space (u64 phys_base, int sparse)
{
u64 offset;
int sparse = 0;
u64 mmio_base;
int i;
if (addr->address_translation_offset == 0)
return IO_SPACE_BASE(0); /* part of legacy IO space */
if (phys_base == 0)
return 0; /* legacy I/O port space */
if (addr->attribute.io.translation_attribute == ACPI_SPARSE_TRANSLATION)
sparse = 1;
offset = (u64) ioremap(addr->address_translation_offset, 0);
mmio_base = (u64) ioremap(phys_base, 0);
for (i = 0; i < num_io_spaces; i++)
if (io_space[i].mmio_base == offset &&
if (io_space[i].mmio_base == mmio_base &&
io_space[i].sparse == sparse)
return IO_SPACE_BASE(i);
return i;
if (num_io_spaces == MAX_IO_SPACES) {
printk("Too many IO port spaces\n");
printk(KERN_ERR "PCI: Too many IO port spaces "
"(MAX_IO_SPACES=%lu)\n", MAX_IO_SPACES);
return ~0;
}
i = num_io_spaces++;
io_space[i].mmio_base = offset;
io_space[i].mmio_base = mmio_base;
io_space[i].sparse = sparse;
return IO_SPACE_BASE(i);
return i;
}
static u64 __devinit
add_io_space (struct pci_root_info *info, struct acpi_resource_address64 *addr)
{
struct resource *resource;
char *name;
u64 base, min, max, base_port;
unsigned int sparse = 0, space_nr, len;
resource = kzalloc(sizeof(*resource), GFP_KERNEL);
if (!resource) {
printk(KERN_ERR "PCI: No memory for %s I/O port space\n",
info->name);
goto out;
}
len = strlen(info->name) + 32;
name = kzalloc(len, GFP_KERNEL);
if (!name) {
printk(KERN_ERR "PCI: No memory for %s I/O port space name\n",
info->name);
goto free_resource;
}
min = addr->min_address_range;
max = min + addr->address_length - 1;
if (addr->attribute.io.translation_attribute == ACPI_SPARSE_TRANSLATION)
sparse = 1;
space_nr = new_space(addr->address_translation_offset, sparse);
if (space_nr == ~0)
goto free_name;
base = __pa(io_space[space_nr].mmio_base);
base_port = IO_SPACE_BASE(space_nr);
snprintf(name, len, "%s I/O Ports %08lx-%08lx", info->name,
base_port + min, base_port + max);
/*
* The SDM guarantees the legacy 0-64K space is sparse, but if the
* mapping is done by the processor (not the bridge), ACPI may not
* mark it as sparse.
*/
if (space_nr == 0)
sparse = 1;
resource->name = name;
resource->flags = IORESOURCE_MEM;
resource->start = base + (sparse ? IO_SPACE_SPARSE_ENCODING(min) : min);
resource->end = base + (sparse ? IO_SPACE_SPARSE_ENCODING(max) : max);
insert_resource(&iomem_resource, resource);
return base_port;
free_name:
kfree(name);
free_resource:
kfree(resource);
out:
return ~0;
}
static acpi_status __devinit resource_to_window(struct acpi_resource *resource,
@ -205,11 +268,6 @@ count_window (struct acpi_resource *resource, void *data)
return AE_OK;
}
struct pci_root_info {
struct pci_controller *controller;
char *name;
};
static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
{
struct pci_root_info *info = data;
@ -231,7 +289,7 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
} else if (addr.resource_type == ACPI_IO_RANGE) {
flags = IORESOURCE_IO;
root = &ioport_resource;
offset = add_io_space(&addr);
offset = add_io_space(info, &addr);
if (offset == ~0)
return AE_OK;
} else
@ -241,7 +299,7 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
window->resource.name = info->name;
window->resource.flags = flags;
window->resource.start = addr.min_address_range + offset;
window->resource.end = addr.max_address_range + offset;
window->resource.end = window->resource.start + addr.address_length - 1;
window->resource.child = NULL;
window->offset = offset;
@ -739,7 +797,7 @@ int pci_vector_resources(int last, int nr_released)
{
int count = nr_released;
count += (IA64_LAST_DEVICE_VECTOR - last);
count += (IA64_LAST_DEVICE_VECTOR - last);
return count;
}