Merge branch 'pci/nikhil-big-bar-fixes' into next
* pci/nikhil-big-bar-fixes: PCI: reorder __pci_assign_resource() (no change) PCI: fix truncation of resource size to 32 bits
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Коммит
5f9dca9669
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@ -145,33 +145,6 @@ void pci_disable_bridge_window(struct pci_dev *dev)
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pci_write_config_dword(dev, PCI_PREF_BASE_UPPER32, 0xffffffff);
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}
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static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
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int resno, resource_size_t size, resource_size_t align)
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{
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struct resource *res = dev->resource + resno;
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resource_size_t min;
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int ret;
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min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
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/* First, try exact prefetching match.. */
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ret = pci_bus_alloc_resource(bus, res, size, align, min,
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IORESOURCE_PREFETCH,
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pcibios_align_resource, dev);
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if (ret < 0 && (res->flags & IORESOURCE_PREFETCH)) {
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/*
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* That failed.
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*
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* But a prefetching area can handle a non-prefetching
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* window (it will just not perform as well).
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*/
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ret = pci_bus_alloc_resource(bus, res, size, align, min, 0,
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pcibios_align_resource, dev);
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}
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return ret;
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}
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/*
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* Generic function that returns a value indicating that the device's
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* original BIOS BAR address was not saved and so is not available for
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@ -224,7 +197,35 @@ static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev,
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return ret;
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}
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static int _pci_assign_resource(struct pci_dev *dev, int resno, int size, resource_size_t min_align)
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static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
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int resno, resource_size_t size, resource_size_t align)
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{
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struct resource *res = dev->resource + resno;
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resource_size_t min;
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int ret;
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min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
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/* First, try exact prefetching match.. */
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ret = pci_bus_alloc_resource(bus, res, size, align, min,
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IORESOURCE_PREFETCH,
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pcibios_align_resource, dev);
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if (ret < 0 && (res->flags & IORESOURCE_PREFETCH)) {
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/*
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* That failed.
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*
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* But a prefetching area can handle a non-prefetching
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* window (it will just not perform as well).
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*/
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ret = pci_bus_alloc_resource(bus, res, size, align, min, 0,
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pcibios_align_resource, dev);
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}
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return ret;
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}
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static int _pci_assign_resource(struct pci_dev *dev, int resno,
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resource_size_t size, resource_size_t min_align)
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{
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struct resource *res = dev->resource + resno;
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struct pci_bus *bus;
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@ -256,31 +257,6 @@ static int _pci_assign_resource(struct pci_dev *dev, int resno, int size, resour
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return ret;
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}
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int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsize,
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resource_size_t min_align)
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{
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struct resource *res = dev->resource + resno;
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resource_size_t new_size;
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int ret;
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if (!res->parent) {
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dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR "
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"\n", resno, res);
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return -EINVAL;
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}
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/* already aligned with min_align */
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new_size = resource_size(res) + addsize;
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ret = _pci_assign_resource(dev, resno, new_size, min_align);
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if (!ret) {
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res->flags &= ~IORESOURCE_STARTALIGN;
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dev_info(&dev->dev, "BAR %d: reassigned %pR\n", resno, res);
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if (resno < PCI_BRIDGE_RESOURCES)
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pci_update_resource(dev, resno);
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}
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return ret;
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}
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int pci_assign_resource(struct pci_dev *dev, int resno)
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{
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struct resource *res = dev->resource + resno;
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@ -316,6 +292,31 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
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return ret;
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}
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int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsize,
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resource_size_t min_align)
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{
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struct resource *res = dev->resource + resno;
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resource_size_t new_size;
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int ret;
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if (!res->parent) {
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dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR "
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"\n", resno, res);
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return -EINVAL;
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}
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/* already aligned with min_align */
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new_size = resource_size(res) + addsize;
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ret = _pci_assign_resource(dev, resno, new_size, min_align);
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if (!ret) {
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res->flags &= ~IORESOURCE_STARTALIGN;
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dev_info(&dev->dev, "BAR %d: reassigned %pR\n", resno, res);
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if (resno < PCI_BRIDGE_RESOURCES)
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pci_update_resource(dev, resno);
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}
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return ret;
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}
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int pci_enable_resources(struct pci_dev *dev, int mask)
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{
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u16 cmd, old_cmd;
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