+#define pr_fmt(fmt) "OF: " fmt
+
#include <linux/device.h>
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/of_address.h>
+#include <linux/pci.h>
#include <linux/pci_regs.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#ifdef DEBUG
static void of_dump_addr(const char *s, const __be32 *addr, int na)
{
- printk(KERN_DEBUG "%s", s);
+ pr_debug("%s", s);
while (na--)
- printk(" %08x", be32_to_cpu(*(addr++)));
- printk("\n");
+ pr_cont(" %08x", be32_to_cpu(*(addr++)));
+ pr_cont("\n");
}
#else
static void of_dump_addr(const char *s, const __be32 *addr, int na) { }
s = of_read_number(range + na + pna, ns);
da = of_read_number(addr, na);
- pr_debug("OF: default map, cp=%llx, s=%llx, da=%llx\n",
+ pr_debug("default map, cp=%llx, s=%llx, da=%llx\n",
(unsigned long long)cp, (unsigned long long)s,
(unsigned long long)da);
s = of_read_number(range + na + pna, ns);
da = of_read_number(addr + 1, na - 1);
- pr_debug("OF: PCI map, cp=%llx, s=%llx, da=%llx\n",
+ pr_debug("PCI map, cp=%llx, s=%llx, da=%llx\n",
(unsigned long long)cp, (unsigned long long)s,
(unsigned long long)da);
s = of_read_number(range + na + pna, ns);
da = of_read_number(addr + 1, na - 1);
- pr_debug("OF: ISA map, cp=%llx, s=%llx, da=%llx\n",
+ pr_debug("ISA map, cp=%llx, s=%llx, da=%llx\n",
(unsigned long long)cp, (unsigned long long)s,
(unsigned long long)da);
*/
ranges = of_get_property(parent, rprop, &rlen);
if (ranges == NULL && !of_empty_ranges_quirk(parent)) {
- pr_debug("OF: no ranges; cannot translate\n");
+ pr_debug("no ranges; cannot translate\n");
return 1;
}
if (ranges == NULL || rlen == 0) {
offset = of_read_number(addr, na);
memset(addr, 0, pna * 4);
- pr_debug("OF: empty ranges; 1:1 translation\n");
+ pr_debug("empty ranges; 1:1 translation\n");
goto finish;
}
- pr_debug("OF: walking ranges...\n");
+ pr_debug("walking ranges...\n");
/* Now walk through the ranges */
rlen /= 4;
break;
}
if (offset == OF_BAD_ADDR) {
- pr_debug("OF: not found !\n");
+ pr_debug("not found !\n");
return 1;
}
memcpy(addr, ranges + na, 4 * pna);
finish:
- of_dump_addr("OF: parent translation for:", addr, pna);
- pr_debug("OF: with offset: %llx\n", (unsigned long long)offset);
+ of_dump_addr("parent translation for:", addr, pna);
+ pr_debug("with offset: %llx\n", (unsigned long long)offset);
/* Translate it into parent bus space */
return pbus->translate(addr, offset, pna);
int na, ns, pna, pns;
u64 result = OF_BAD_ADDR;
- pr_debug("OF: ** translation for device %s **\n", of_node_full_name(dev));
+ pr_debug("** translation for device %s **\n", of_node_full_name(dev));
/* Increase refcount at current level */
of_node_get(dev);
/* Count address cells & copy address locally */
bus->count_cells(dev, &na, &ns);
if (!OF_CHECK_COUNTS(na, ns)) {
- pr_debug("OF: Bad cell count for %s\n", of_node_full_name(dev));
+ pr_debug("Bad cell count for %s\n", of_node_full_name(dev));
goto bail;
}
memcpy(addr, in_addr, na * 4);
- pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
+ pr_debug("bus is %s (na=%d, ns=%d) on %s\n",
bus->name, na, ns, of_node_full_name(parent));
- of_dump_addr("OF: translating address:", addr, na);
+ of_dump_addr("translating address:", addr, na);
/* Translate */
for (;;) {
/* If root, we have finished */
if (parent == NULL) {
- pr_debug("OF: reached root node\n");
+ pr_debug("reached root node\n");
result = of_read_number(addr, na);
break;
}
pbus = of_match_bus(parent);
pbus->count_cells(dev, &pna, &pns);
if (!OF_CHECK_COUNTS(pna, pns)) {
- pr_err("prom_parse: Bad cell count for %s\n",
+ pr_err("Bad cell count for %s\n",
of_node_full_name(dev));
break;
}
- pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
+ pr_debug("parent bus is %s (na=%d, ns=%d) on %s\n",
pbus->name, pna, pns, of_node_full_name(parent));
/* Apply bus translation */
ns = pns;
bus = pbus;
- of_dump_addr("OF: one level translation:", addr, na);
+ of_dump_addr("one level translation:", addr, na);
}
bail:
of_node_put(parent);
}
EXPORT_SYMBOL(of_get_address);
-#ifdef PCI_IOBASE
-struct io_range {
- struct list_head list;
- phys_addr_t start;
- resource_size_t size;
-};
-
-static LIST_HEAD(io_range_list);
-static DEFINE_SPINLOCK(io_range_lock);
-#endif
-
-/*
- * Record the PCI IO range (expressed as CPU physical address + size).
- * Return a negative value if an error has occured, zero otherwise
- */
-int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size)
-{
- int err = 0;
-
-#ifdef PCI_IOBASE
- struct io_range *range;
- resource_size_t allocated_size = 0;
-
- /* check if the range hasn't been previously recorded */
- spin_lock(&io_range_lock);
- list_for_each_entry(range, &io_range_list, list) {
- if (addr >= range->start && addr + size <= range->start + size) {
- /* range already registered, bail out */
- goto end_register;
- }
- allocated_size += range->size;
- }
-
- /* range not registed yet, check for available space */
- if (allocated_size + size - 1 > IO_SPACE_LIMIT) {
- /* if it's too big check if 64K space can be reserved */
- if (allocated_size + SZ_64K - 1 > IO_SPACE_LIMIT) {
- err = -E2BIG;
- goto end_register;
- }
-
- size = SZ_64K;
- pr_warn("Requested IO range too big, new size set to 64K\n");
- }
-
- /* add the range to the list */
- range = kzalloc(sizeof(*range), GFP_ATOMIC);
- if (!range) {
- err = -ENOMEM;
- goto end_register;
- }
-
- range->start = addr;
- range->size = size;
-
- list_add_tail(&range->list, &io_range_list);
-
-end_register:
- spin_unlock(&io_range_lock);
-#endif
-
- return err;
-}
-
-phys_addr_t pci_pio_to_address(unsigned long pio)
-{
- phys_addr_t address = (phys_addr_t)OF_BAD_ADDR;
-
-#ifdef PCI_IOBASE
- struct io_range *range;
- resource_size_t allocated_size = 0;
-
- if (pio > IO_SPACE_LIMIT)
- return address;
-
- spin_lock(&io_range_lock);
- list_for_each_entry(range, &io_range_list, list) {
- if (pio >= allocated_size && pio < allocated_size + range->size) {
- address = range->start + pio - allocated_size;
- break;
- }
- allocated_size += range->size;
- }
- spin_unlock(&io_range_lock);
-#endif
-
- return address;
-}
-
-unsigned long __weak pci_address_to_pio(phys_addr_t address)
-{
-#ifdef PCI_IOBASE
- struct io_range *res;
- resource_size_t offset = 0;
- unsigned long addr = -1;
-
- spin_lock(&io_range_lock);
- list_for_each_entry(res, &io_range_list, list) {
- if (address >= res->start && address < res->start + res->size) {
- addr = address - res->start + offset;
- break;
- }
- offset += res->size;
- }
- spin_unlock(&io_range_lock);
-
- return addr;
-#else
- if (address > IO_SPACE_LIMIT)
- return (unsigned long)-1;
-
- return (unsigned long) address;
-#endif
-}
-
static int __of_address_to_resource(struct device_node *dev,
const __be32 *addrp, u64 size, unsigned int flags,
const char *name, struct resource *r)
}
if (!ranges) {
- pr_debug("%s: no dma-ranges found for node(%s)\n",
- __func__, np->full_name);
+ pr_debug("no dma-ranges found for node(%s)\n", np->full_name);
ret = -ENODEV;
goto out;
}
dmaaddr = of_read_number(ranges, naddr);
*paddr = of_translate_dma_address(np, ranges);
if (*paddr == OF_BAD_ADDR) {
- pr_err("%s: translation of DMA address(%pad) to CPU address failed node(%s)\n",
- __func__, dma_addr, np->full_name);
+ pr_err("translation of DMA address(%pad) to CPU address failed node(%s)\n",
+ dma_addr, np->full_name);
ret = -EINVAL;
goto out;
}
projects / karo-tx-linux.git / blobdiff