1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/range.h>
14 #include <asm/pci-direct.h>
23 	u32 bus;  member
38 	const struct range *r1 = x1;  in cmp_range()
39 	const struct range *r2 = x2;  in cmp_range()
42 	start1 = r1->start >> 32;  in cmp_range()
43 	start2 = r2->start >> 32;  in cmp_range()
45 	return start1 - start2;  in cmp_range()
49 #define MMCONF_MASK (~(MMCONF_UNIT - 1))
57 	unsigned bus;  in get_fam10h_pci_mmconf_base()  local
67 	struct range range[8];  in get_fam10h_pci_mmconf_base()  local
82 		bus = pci_probes[i].bus;  in get_fam10h_pci_mmconf_base()
84 		id = read_pci_config(bus, slot, 0, PCI_VENDOR_ID);  in get_fam10h_pci_mmconf_base()
113 		base = (tom2 + 2 * MMCONF_UNIT - 1) & MMCONF_MASK;  in get_fam10h_pci_mmconf_base()
116 	 * need to check if the range is in the high mmio range that is  in get_fam10h_pci_mmconf_base()
124 		reg = read_pci_config(bus, slot, 1, 0x80 + (i << 3));  in get_fam10h_pci_mmconf_base()
129 		reg = read_pci_config(bus, slot, 1, 0x84 + (i << 3));  in get_fam10h_pci_mmconf_base()
135 		range[hi_mmio_num].start = start;  in get_fam10h_pci_mmconf_base()
136 		range[hi_mmio_num].end = end;  in get_fam10h_pci_mmconf_base()
143 	/* sort the range */  in get_fam10h_pci_mmconf_base()
144 	sort(range, hi_mmio_num, sizeof(struct range), cmp_range, NULL);  in get_fam10h_pci_mmconf_base()
146 	if (range[hi_mmio_num - 1].end < base)  in get_fam10h_pci_mmconf_base()
148 	if (range[0].start > base + MMCONF_SIZE)  in get_fam10h_pci_mmconf_base()
152 	base = (range[0].start & MMCONF_MASK) - MMCONF_UNIT;  in get_fam10h_pci_mmconf_base()
155 	base = (range[hi_mmio_num - 1].end + MMCONF_UNIT) & MMCONF_MASK;  in get_fam10h_pci_mmconf_base()
160 		base = (range[i - 1].end + MMCONF_UNIT) & MMCONF_MASK;  in get_fam10h_pci_mmconf_base()
161 		val = range[i].start & MMCONF_MASK;  in get_fam10h_pci_mmconf_base()