diff options
author | Yijing Wang <wangyijing@huawei.com> | 2013-06-06 15:34:47 +0800 |
---|---|---|
committer | Tony Luck <tony.luck@intel.com> | 2013-06-18 09:42:47 -0700 |
commit | 2ead66b5472542d82f31c3b6418b23ace3dac87d (patch) | |
tree | 2bc41975c8b382f9c5c2f6d198a2a865c5884137 /arch | |
parent | c60fb074c0baef6b0ca259dafe2371a24f3f8c1f (diff) | |
download | linux-2ead66b5472542d82f31c3b6418b23ace3dac87d.tar.bz2 |
PCI/IA64: SN: use normal resource instead of pci_window
Pci_window in pci_controller will not be used again,
use normal resource instead of pci_window in
sn_legacy_pci_window_fixup(), this patch is to prepare
to remove pci_window in IA64.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Cc: John Keller <jpk@sgi.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Mark Maule <maule@sgi.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ia64/sn/kernel/io_init.c | 56 |
1 files changed, 26 insertions, 30 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 06a172cb37f4..2b00adedc45e 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -118,34 +118,26 @@ static void __init sn_fixup_ionodes(void) } /* - * sn_pci_legacy_window_fixup - Create PCI controller windows for + * sn_pci_legacy_window_fixup - Setup PCI resources for * legacy IO and MEM space. This needs to * be done here, as the PROM does not have * ACPI support defining the root buses * and their resources (_CRS), */ static void -sn_legacy_pci_window_fixup(struct pci_controller *controller, - u64 legacy_io, u64 legacy_mem) +sn_legacy_pci_window_fixup(struct resource *res, + u64 legacy_io, u64 legacy_mem) { - controller->window = kcalloc(2, sizeof(struct pci_window), - GFP_KERNEL); - BUG_ON(controller->window == NULL); - controller->window[0].offset = legacy_io; - controller->window[0].resource.name = "legacy_io"; - controller->window[0].resource.flags = IORESOURCE_IO; - controller->window[0].resource.start = legacy_io; - controller->window[0].resource.end = - controller->window[0].resource.start + 0xffff; - controller->window[0].resource.parent = &ioport_resource; - controller->window[1].offset = legacy_mem; - controller->window[1].resource.name = "legacy_mem"; - controller->window[1].resource.flags = IORESOURCE_MEM; - controller->window[1].resource.start = legacy_mem; - controller->window[1].resource.end = - controller->window[1].resource.start + (1024 * 1024) - 1; - controller->window[1].resource.parent = &iomem_resource; - controller->windows = 2; + res[0].name = "legacy_io"; + res[0].flags = IORESOURCE_IO; + res[0].start = legacy_io; + res[0].end = res[0].start + 0xffff; + res[0].parent = &ioport_resource; + res[1].name = "legacy_mem"; + res[1].flags = IORESOURCE_MEM; + res[1].start = legacy_mem; + res[1].end = res[1].start + (1024 * 1024) - 1; + res[1].parent = &iomem_resource; } /* @@ -244,8 +236,8 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) s64 status = 0; struct pci_controller *controller; struct pcibus_bussoft *prom_bussoft_ptr; + struct resource *res; LIST_HEAD(resources); - int i; status = sal_get_pcibus_info((u64) segment, (u64) busnum, (u64) ia64_tpa(&prom_bussoft_ptr)); @@ -257,19 +249,23 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) BUG_ON(!controller); controller->segment = segment; + res = kcalloc(2, sizeof(struct resource), GFP_KERNEL); + BUG_ON(!res); + /* * Temporarily save the prom_bussoft_ptr for use by sn_bus_fixup(). * (platform_data will be overwritten later in sn_common_bus_fixup()) */ controller->platform_data = prom_bussoft_ptr; - sn_legacy_pci_window_fixup(controller, - prom_bussoft_ptr->bs_legacy_io, - prom_bussoft_ptr->bs_legacy_mem); - for (i = 0; i < controller->windows; i++) - pci_add_resource_offset(&resources, - &controller->window[i].resource, - controller->window[i].offset); + sn_legacy_pci_window_fixup(res, + prom_bussoft_ptr->bs_legacy_io, + prom_bussoft_ptr->bs_legacy_mem); + pci_add_resource_offset(&resources, &res[0], + prom_bussoft_ptr->bs_legacy_io); + pci_add_resource_offset(&resources, &res[1], + prom_bussoft_ptr->bs_legacy_mem); + bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller, &resources); if (bus == NULL) @@ -280,7 +276,7 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) return; error_return: - + kfree(res); kfree(controller); return; } |