riastr...@netbsd.org (Taylor R Campbell) writes:
> #include <ddb/ddb.h>
> if (bpa <=3D BADADDR && BADADDR < bpa + size)
> db_stacktrace();
>Then share the dmesg output on boot with this change to
>bus_space_reserve?
>This way we can track down who's reserving the registers that
>intel_opregion.c wants.
In my case (T420 with Sandy Bridge) nobody did bus_space_reserve
the registers that intel_opregion wants.
This here is the attempt to map the opregion:
bus_space_reserve 0xffffffff80554799: 0xdaef6018+0x2000 -> extent_alloc_region
failed
bus_space_map 0xffffffff807689ee: 0xdaef6018+0x2000 -> bus_space_reserve failed
The iomem extent at that point is:
extent `iomem' (0x0 - 0xffffffffffff), flags = 0x3
0x0 - 0x57fff
0x58000 - 0x58fff
0x59000 - 0x9ffff
0x100000 - 0x1fffffff
0x20200000 - 0x3fffffff
0x40200000 - 0xda99efff
0xdae9f000 - 0xdaf9efff <--------
0xdaf9f000 - 0xdaffefff
0xdafff000 - 0xdaffffff
0xf0000000 - 0xf01fffff
0xf0200000 - 0xf03fffff
0xf1400000 - 0xf14000ff
0xf2400000 - 0xf2401fff
0xf2500000 - 0xf251ffff
0xf2520000 - 0xf2523fff
0xf2528000 - 0xf25287ff
0xf2529000 - 0xf25293ff
0xf252a000 - 0xf252a3ff
0xf252b000 - 0xf252bfff
0xf8000000 - 0xf8000fff
0xf8010000 - 0xf8010fff
0xf80b0000 - 0xf80b0fff
0xf80c8000 - 0xf80c8fff
0xf80d0000 - 0xf80d0fff
0xf80d8000 - 0xf80d8fff
0xf80e0000 - 0xf80e0fff
0xf80e1000 - 0xf80e1fff
0xf80e3000 - 0xf80e3fff
0xf80e4000 - 0xf80e4fff
0xf80e8000 - 0xf80e8fff
0xf80f8000 - 0xf80f8fff
0xf80fa000 - 0xf80fafff
0xf80fb000 - 0xf80fbfff
0xf8300000 - 0xf8300fff
0xf8d00000 - 0xf8d00fff
0xfed00000 - 0xfed003ff
0xfed1c000 - 0xfed1ffff
0xfed40000 - 0xfed44fff
0x100000000 - 0x21e5fffff
The iomem extent is initialized from the UEFI memory map:
# N START END
0 7 0000000000000000 0000000000057fff
1 10 0000000000058000 0000000000058fff
2 7 0000000000059000 000000000009ffff
3 7 0000000000100000 000000001fffffff
4 0 0000000020000000 00000000201fffff
5 7 0000000020200000 000000003fffffff
6 0 0000000040000000 00000000401fffff
7 7 0000000040200000 00000000da99efff
8 5 00000000da99f000 00000000daac1fff
9 5 00000000daac2000 00000000dab9efff
10 6 00000000dab9f000 00000000dacb1fff
11 6 00000000dacb2000 00000000dad9efff
12 0 00000000dad9f000 00000000dae21fff
13 0 00000000dae22000 00000000dae9afff
14 0 00000000dae9b000 00000000dae9bfff
15 0 00000000dae9c000 00000000dae9efff
16 10 00000000dae9f000 00000000daeddfff
17 10 00000000daede000 00000000daf9efff <--------------
18 9 00000000daf9f000 00000000dafdcfff
19 9 00000000dafdd000 00000000daffefff
20 7 00000000dafff000 00000000daffffff
21 11 00000000f80f8000 00000000f80f8fff
22 11 00000000fed1c000 00000000fed1ffff
23 7 0000000100000000 000000021e5fffff
The second column is the EFI md_type that gets translated to a
bootinfo memory type:
0 = null -> BIM_Reserved
5 = rt_code -> BIM_Reserved
6 = rt_data -> BIM_Reserved
7 = free -> BIM_Memory
9 = reclaim -> BIM_ACPI
10 = firmware -> BIM_NVS
11 = iomem -> BIM_Reserved
The needed pages are in cluster 17 of type BIM_NVS, which the
extent has added as pre-allocated (merged with cluster 16).
