diff options
Diffstat (limited to 'ls-caps.c')
| -rw-r--r-- | ls-caps.c | 156 |
1 files changed, 156 insertions, 0 deletions
@@ -1255,6 +1255,159 @@ cap_sata_hba(struct device *d, int where, int cap) printf(" BAR??%d\n", bar); } +static const char *cap_ea_property(int p, int is_secondary) +{ + switch (p) { + case 0x00: + return "memory space, non-prefetchable"; + case 0x01: + return "memory space, prefetchable"; + case 0x02: + return "I/O space"; + case 0x03: + return "VF memory space, prefetchable"; + case 0x04: + return "VF memory space, non-prefetchable"; + case 0x05: + return "allocation behind bridge, non-prefetchable memory"; + case 0x06: + return "allocation behind bridge, prefetchable memory"; + case 0x07: + return "allocation behind bridge, I/O space"; + case 0xfd: + return "memory space resource unavailable for use"; + case 0xfe: + return "I/O space resource unavailable for use"; + case 0xff: + if (is_secondary) + return "entry unavailable for use, PrimaryProperties should be used"; + else + return "entry unavailable for use"; + default: + return NULL; + } +} + +static void cap_ea(struct device *d, int where, int cap) +{ + int entry; + int entry_base = where + 4; + int num_entries = BITS(cap, 0, 6); + u8 htype = get_conf_byte(d, PCI_HEADER_TYPE) & 0x7f; + + printf("Enhanced Allocation (EA): NumEntries=%u", num_entries); + if (htype == PCI_HEADER_TYPE_BRIDGE) { + byte fixed_sub, fixed_sec; + + entry_base += 4; + if (!config_fetch(d, where + 4, 2)) { + printf("\n"); + return; + } + fixed_sec = get_conf_byte(d, where + PCI_EA_CAP_TYPE1_SECONDARY); + fixed_sub = get_conf_byte(d, where + PCI_EA_CAP_TYPE1_SUBORDINATE); + printf(", secondary=%d, subordinate=%d", fixed_sec, fixed_sub); + } + printf("\n"); + if (verbose < 2) + return; + + for (entry = 0; entry < num_entries; entry++) { + int max_offset_high_pos, has_base_high, has_max_offset_high; + u32 entry_header; + u32 base, max_offset; + int es, bei, pp, sp; + const char *prop_text; + + if (!config_fetch(d, entry_base, 4)) + return; + entry_header = get_conf_long(d, entry_base); + es = BITS(entry_header, 0, 3); + bei = BITS(entry_header, 4, 4); + pp = BITS(entry_header, 8, 8); + sp = BITS(entry_header, 16, 8); + if (!config_fetch(d, entry_base + 4, es * 4)) + return; + printf("\t\tEntry %u: Enable%c Writable%c EntrySize=%u\n", entry, + FLAG(entry_header, PCI_EA_CAP_ENT_ENABLE), + FLAG(entry_header, PCI_EA_CAP_ENT_WRITABLE), es); + printf("\t\t\t BAR Equivalent Indicator: "); + switch (bei) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + printf("BAR %u", bei); + break; + case 6: + printf("resource behind function"); + break; + case 7: + printf("not indicated"); + break; + case 8: + printf("expansion ROM"); + break; + case 9: + case 10: + case 11: + case 12: + case 13: + case 14: + printf("VF-BAR %u", bei - 9); + break; + default: + printf("reserved"); + break; + } + printf("\n"); + + prop_text = cap_ea_property(pp, 0); + printf("\t\t\t PrimaryProperties: "); + if (prop_text) + printf("%s\n", prop_text); + else + printf("[%02x]\n", pp); + + prop_text = cap_ea_property(sp, 1); + printf("\t\t\t SecondaryProperties: "); + if (prop_text) + printf("%s\n", prop_text); + else + printf("[%02x]\n", sp); + + base = get_conf_long(d, entry_base + 4); + has_base_high = ((base & 2) != 0); + base &= ~3; + + max_offset = get_conf_long(d, entry_base + 8); + has_max_offset_high = ((max_offset & 2) != 0); + max_offset |= 3; + max_offset_high_pos = entry_base + 12; + + printf("\t\t\t Base: "); + if (has_base_high) { + u32 base_high = get_conf_long(d, entry_base + 12); + + printf("%x", base_high); + max_offset_high_pos += 4; + } + printf("%08x\n", base); + + printf("\t\t\t MaxOffset: "); + if (has_max_offset_high) { + u32 max_offset_high = get_conf_long(d, max_offset_high_pos); + + printf("%x", max_offset_high); + } + printf("%08x\n", max_offset); + + entry_base += 4 + 4 * es; + } +} + void show_caps(struct device *d, int where) { @@ -1349,6 +1502,9 @@ show_caps(struct device *d, int where) case PCI_CAP_ID_AF: cap_af(d, where); break; + case PCI_CAP_ID_EA: + cap_ea(d, where, cap); + break; default: printf("#%02x [%04x]\n", id, cap); } |