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Diffstat (limited to 'libdde_linux26/contrib/drivers/pci/setup-res.c')
-rw-r--r--libdde_linux26/contrib/drivers/pci/setup-res.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/libdde_linux26/contrib/drivers/pci/setup-res.c b/libdde_linux26/contrib/drivers/pci/setup-res.c
deleted file mode 100644
index 32e8d88a..00000000
--- a/libdde_linux26/contrib/drivers/pci/setup-res.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * drivers/pci/setup-res.c
- *
- * Extruded from code written by
- * Dave Rusling (david.rusling@reo.mts.dec.com)
- * David Mosberger (davidm@cs.arizona.edu)
- * David Miller (davem@redhat.com)
- *
- * Support routines for initializing a PCI subsystem.
- */
-
-/* fixed for multiple pci buses, 1999 Andrea Arcangeli <andrea@suse.de> */
-
-/*
- * Nov 2000, Ivan Kokshaysky <ink@jurassic.park.msu.ru>
- * Resource sorting
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/errno.h>
-#include <linux/ioport.h>
-#include <linux/cache.h>
-#include <linux/slab.h>
-#include "pci.h"
-
-
-void pci_update_resource(struct pci_dev *dev, int resno)
-{
- struct pci_bus_region region;
- u32 new, check, mask;
- int reg;
- enum pci_bar_type type;
- struct resource *res = dev->resource + resno;
-
- /*
- * Ignore resources for unimplemented BARs and unused resource slots
- * for 64 bit BARs.
- */
- if (!res->flags)
- return;
-
- /*
- * Ignore non-moveable resources. This might be legacy resources for
- * which no functional BAR register exists or another important
- * system resource we shouldn't move around.
- */
- if (res->flags & IORESOURCE_PCI_FIXED)
- return;
-
- pcibios_resource_to_bus(dev, &region, res);
-
- dev_dbg(&dev->dev, "BAR %d: got res %pR bus [%#llx-%#llx] "
- "flags %#lx\n", resno, res,
- (unsigned long long)region.start,
- (unsigned long long)region.end,
- (unsigned long)res->flags);
-
- new = region.start | (res->flags & PCI_REGION_FLAG_MASK);
- if (res->flags & IORESOURCE_IO)
- mask = (u32)PCI_BASE_ADDRESS_IO_MASK;
- else
- mask = (u32)PCI_BASE_ADDRESS_MEM_MASK;
-
- reg = pci_resource_bar(dev, resno, &type);
- if (!reg)
- return;
- if (type != pci_bar_unknown) {
- if (!(res->flags & IORESOURCE_ROM_ENABLE))
- return;
- new |= PCI_ROM_ADDRESS_ENABLE;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
-
- if ((new ^ check) & mask) {
- dev_err(&dev->dev, "BAR %d: error updating (%#08x != %#08x)\n",
- resno, new, check);
- }
-
- if ((new & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) ==
- (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64)) {
- new = region.start >> 16 >> 16;
- pci_write_config_dword(dev, reg + 4, new);
- pci_read_config_dword(dev, reg + 4, &check);
- if (check != new) {
- dev_err(&dev->dev, "BAR %d: error updating "
- "(high %#08x != %#08x)\n", resno, new, check);
- }
- }
- res->flags &= ~IORESOURCE_UNSET;
- dev_dbg(&dev->dev, "BAR %d: moved to bus [%#llx-%#llx] flags %#lx\n",
- resno, (unsigned long long)region.start,
- (unsigned long long)region.end, res->flags);
-}
-
-int pci_claim_resource(struct pci_dev *dev, int resource)
-{
- struct resource *res = &dev->resource[resource];
- struct resource *root = NULL;
- char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
- int err;
-
- root = pcibios_select_root(dev, res);
-
- err = -EINVAL;
- if (root != NULL)
- err = insert_resource(root, res);
-
- if (err) {
- dev_err(&dev->dev, "BAR %d: %s of %s %pR\n",
- resource,
- root ? "address space collision on" :
- "no parent found for",
- dtype, res);
- }
-
- return err;
-}
-
-int pci_assign_resource(struct pci_dev *dev, int resno)
-{
- struct pci_bus *bus = dev->bus;
- struct resource *res = dev->resource + resno;
- resource_size_t size, min, align;
- int ret;
-
- size = resource_size(res);
- min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
-
- align = resource_alignment(res);
- if (!align) {
- dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus "
- "alignment) %pR flags %#lx\n",
- resno, res, res->flags);
- return -EINVAL;
- }
-
- /* First, try exact prefetching match.. */
- ret = pci_bus_alloc_resource(bus, res, size, align, min,
- IORESOURCE_PREFETCH,
- pcibios_align_resource, dev);
-
- if (ret < 0 && (res->flags & IORESOURCE_PREFETCH)) {
- /*
- * That failed.
- *
- * But a prefetching area can handle a non-prefetching
- * window (it will just not perform as well).
- */
- ret = pci_bus_alloc_resource(bus, res, size, align, min, 0,
- pcibios_align_resource, dev);
- }
-
- if (ret) {
- dev_info(&dev->dev, "BAR %d: can't allocate %s resource %pR\n",
- resno, res->flags & IORESOURCE_IO ? "I/O" : "mem", res);
- } else {
- res->flags &= ~IORESOURCE_STARTALIGN;
- if (resno < PCI_BRIDGE_RESOURCES)
- pci_update_resource(dev, resno);
- }
-
- return ret;
-}
-
-#if 0
-int pci_assign_resource_fixed(struct pci_dev *dev, int resno)
-{
- struct pci_bus *bus = dev->bus;
- struct resource *res = dev->resource + resno;
- unsigned int type_mask;
- int i, ret = -EBUSY;
-
- type_mask = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH;
-
- for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
- struct resource *r = bus->resource[i];
- if (!r)
- continue;
-
- /* type_mask must match */
- if ((res->flags ^ r->flags) & type_mask)
- continue;
-
- ret = request_resource(r, res);
-
- if (ret == 0)
- break;
- }
-
- if (ret) {
- dev_err(&dev->dev, "BAR %d: can't allocate %s resource %pR\n",
- resno, res->flags & IORESOURCE_IO ? "I/O" : "mem", res);
- } else if (resno < PCI_BRIDGE_RESOURCES) {
- pci_update_resource(dev, resno);
- }
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(pci_assign_resource_fixed);
-#endif
-
-/* Sort resources by alignment */
-void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
-{
- int i;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *r;
- struct resource_list *list, *tmp;
- resource_size_t r_align;
-
- r = &dev->resource[i];
-
- if (r->flags & IORESOURCE_PCI_FIXED)
- continue;
-
- if (!(r->flags) || r->parent)
- continue;
-
- r_align = resource_alignment(r);
- if (!r_align) {
- dev_warn(&dev->dev, "BAR %d: bogus alignment "
- "%pR flags %#lx\n",
- i, r, r->flags);
- continue;
- }
- for (list = head; ; list = list->next) {
- resource_size_t align = 0;
- struct resource_list *ln = list->next;
-
- if (ln)
- align = resource_alignment(ln->res);
-
- if (r_align > align) {
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- panic("pdev_sort_resources(): "
- "kmalloc() failed!\n");
- tmp->next = ln;
- tmp->res = r;
- tmp->dev = dev;
- list->next = tmp;
- break;
- }
- }
- }
-}
-
-int pci_enable_resources(struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int i;
- struct resource *r;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- if (!(mask & (1 << i)))
- continue;
-
- r = &dev->resource[i];
-
- if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
- continue;
- if ((i == PCI_ROM_RESOURCE) &&
- (!(r->flags & IORESOURCE_ROM_ENABLE)))
- continue;
-
- if (!r->parent) {
- dev_err(&dev->dev, "device not available because of "
- "BAR %d %pR collisions\n", i, r);
- return -EINVAL;
- }
-
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
-
- if (cmd != old_cmd) {
- dev_info(&dev->dev, "enabling device (%04x -> %04x)\n",
- old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
-}
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