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PCI/IA64: embed pci hostbridge resources into pci_root_info

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Currently, pcibios_resource_to_bus() and pcibios_bus_to_resource()
functions use pci_host_bridge to translate bus side address from/to
cpu side address. The pci_window in pci_controller never be used again.
So we remove pci_window in pci_controller and embed hostbridge resource
into pci_root_info. Bjorn suggested to implement hostbridge resources
release in IA64 like in X86, this patch is to prepare for that.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Yijing Wang
2013-06-06 15:34:48 +08:00
committed by Tony Luck
parent 2ead66b547
commit 5cd7595dea
2 changed files with 38 additions and 36 deletions
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9
arch/ia64/include/asm/pci.h
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@@ -89,23 +89,16 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
#define pci_legacy_read platform_pci_legacy_read
#define pci_legacy_write platform_pci_legacy_write
struct pci_window {
struct resource resource;
u64 offset;
};
struct pci_controller {
void *acpi_handle;
void *iommu;
int segment;
int node; /* nearest node with memory or -1 for global allocation */
unsigned int windows;
struct pci_window *window;
void *platform_data;
};
#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata)
#define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment)