Re: [Pcihpd-discuss] Re: ACPI problem with PCI Express Native Hot-plug driver

From: Rajat Jain (rajat.noida.india_at_gmail.com)
Date: 09/30/05

  • Next message: Andrew Morton: "Re: 2.6.14-rc1-git-now still dying in mm/slab - this time line 1849"
    Date:	Fri, 30 Sep 2005 14:57:07 +0900
    To: Kristen Accardi <kristen.c.accardi@intel.com>
    
    

    Hi,

    I'm using stock kernel 2.6.13 on RHEL4 Distribution, and am trying to
    make PCI Express Native Hot-plug driver (pciehp) work on my system (My
    system has two hot-pluggable PCI Express slots). I am facing following
    problem, and would really appreciate if any one can provide any info
    regarding this problem. (I had earlier tried RHEL4 kernel, but as
    suggested by list, have tried with 2.6.13. but to no avail).

    When I disable the ACPI support in my kernel configuration, the
    ("non-acpi") pciehp driver inserts successfully and I see the
    following two entries appearing in my /sys/bus/pci/slots:

    drwxr-xr-x 2 root root 0 Sep 2 14:28 10
    drwxr-xr-x 2 root root 0 Sep 2 14:28 11

    However, when I enable the ACPI support in the kernel, the controller
    initialization fails giving me following error (excerpts):

    ......
    ......
    pciehp: pfar:cannot locate acpi bridge of PCI 0xb.
    pciehp: pciehprm_find_available_resources = 0xffffffff
    pciehp: unable to locate PCI configuration resources for hot plug add.
    ......
    ......
    pciehp: pfar:cannot locate acpi bridge of PCI 0xe.
    pciehp: pciehprm_find_available_resources = 0xffffffff
    pciehp: unable to locate PCI configuration resources for hot plug add.
    ......
    ......

    I am not sure where the problem lies. But the fact that the entries
    are appearing correctly when I disable ACPI, combined with above error
    messages, I suspect that there is a problem with ACPI namespace
    (probably the resources cannot be found using ACPI).

    I have two questions:

    1) How can I go about tackling this problem? The possibility of BIOS /
    Hardware being faulty cannot be ruled out. But then what exactly is
    missing and how can that be solved (I can tell my BIOS provider /
    hardware provider to correct the problem, but I need to pinpoint the
    problem). Is some thing missing in the AML?

    2) If the resources are actually missing, then how does the driver
    find the required resources when I disable the ACPI from kernel?

    I am attaching complete logs of both the cases (The one with ACPI
    enabled and giving this error, the other - ACPI disabled and
    displaying the slot entries) with highlighted error message. I would
    really appreciate if any one can provide me any kind of pointers.

    TIA,

    Rajat

    ===========================================
    ACPI Enabled Error Log
    ===========================================
     Initialize + Start the notification/polling mechanism
     Our event thread pid = 5691
     Initialize slot lists
     pciehprm ACPI init <enter>
     acpi_pciehprm: ROOT PCI seg(0x0)bus(0x0)dev(0x0)func(0x0) [\_SB_.PCI0]
     acpi_pciehprm: PCI bus 0x0 Resource structure 0.
     acpi_pciehprm:16-Bit Address Space Resource
       Resource Type: Bus Number Range(fixed)
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 00000001
       Address range max: 000000FF
       Address translation offset: 00000000
       Address Length: 000000FF
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 1.
     acpi_pciehprm:16-Bit Address Space Resource
       Resource Type: I/O Range
       Type Specific: ISA and non-ISA Io Addresses
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 00000000
       Address range max: 00000CF7
       Address translation offset: 00000000
       Address Length: 00000CF8
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 2.
     Io Resource
       16 bit decode
       Range minimum base: 00000CF8
       Range maximum base: 00000CF8
       Alignment: 00000001
       Range Length: 00000008
     acpi_pciehprm: PCI bus 0x0 Resource structure 3.
     acpi_pciehprm:16-Bit Address Space Resource
       Resource Type: I/O Range
       Type Specific: ISA and non-ISA Io Addresses
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 00000D00
       Address range max: 0000FFFF
       Address translation offset: 00000000
       Address Length: 0000F300
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 4.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read/Write
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000A0000
       Address range max: 000BFFFF
       Address translation offset: 00000000
       Address Length: 00020000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 5.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000C0000
       Address range max: 000C3FFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 6.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000C4000
       Address range max: 000C7FFF
       Address translation offset: 00000000
       Address Length: 00000000
     !!!!event_thread sleeping
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 7.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000C8000
       Address range max: 000CBFFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 8.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000CC000
       Address range max: 000CFFFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 9.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000D0000
       Address range max: 000D3FFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure a.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000D4000
       Address range max: 000D7FFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure b.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read/Write
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000D8000
       Address range max: 000DBFFF
       Address translation offset: 00000000
       Address Length: 00004000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure c.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read/Write
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000DC000
       Address range max: 000DFFFF
       Address translation offset: 00000000
       Address Length: 00004000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure d.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000E0000
       Address range max: 000E3FFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure e.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000E4000
       Address range max: 000E7FFF
       Address translation offset: 00000000
       Address Length: 00000000
    Sep 28 17:39:52 localhost su[5683]: Warning! Could not get current
    context for /dev/pts/0, not relabeling.
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure f.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000E8000
       Address range max: 000EBFFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 10.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read Only
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 000EC000
       Address range max: 000EFFFF
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 11.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read/Write
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: D0000000
       Address range max: FEBFFFFF
       Address translation offset: 00000000
       Address Length: 2EC00000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 12.
     acpi_pciehprm:32-Bit Address Space Resource
       Resource Type: Memory Range
       Type Specific: Cacheable memory
       Type Specific: Read/Write
       Resource Producer
       Positive decode
       Min address is fixed
       Max address is fixed
       Granularity: 00000000
       Address range min: 00000000
       Address range max: 00000000
       Address translation offset: 00000000
       Address Length: 00000000
       Resource Source Index: 0
     acpi_pciehprm: PCI bus 0x0 Resource structure 13.
     End_tag -------- Resource
     pciehp_resource_sort_and_combine: head = f3ced148, *head = f5645aa0
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f3ced144, *head = f6cf4300
     *head->next = f79e8d00
     *head->base = 0xd00
     *head->next->base = 0x0
     pciehp_resource_sort_and_combine: head = f3ced13c, *head = f3c7aa40
     *head->next = f718fc40
     *head->base = 0xd0000000
     *head->next->base = 0xd8000
     pciehp_resource_sort_and_combine: head = f3ced140, *head = 00000000
     add_host_bridge: osc_run_status 5
     acpi_pciehprm: Registered PCI HOST Bridge(00) on
    s:b:d:f(00:00:00:00) [\_SB_.PCI0]
     acpi_pciehprm: P2P(0-1) on pci=b:d:f(0:2:0) acpi=b:d:f(0:2:0) [\_SB_.PCI0.PE1A]
     acpi_pciehprm: Registered PCI P2P Bridge(00-01) on
    s:b:d:f(00:00:02:00) [\_SB_.PCI0.PE1A]
     acpi_pciehprm: P2P(1-2) on pci=b:d:f(1:0:0) acpi=b:d:f(1:0:0)
    [\_SB_.PCI0.PE1A.PXHA]
     acpi_pciehprm: Registered PCI P2P Bridge(01-02) on
    s:b:d:f(00:01:00:00) [\_SB_.PCI0.PE1A.PXHA]
     acpi_pciehprm: P2P(1-3) on pci=b:d:f(1:0:2) acpi=b:d:f(1:0:2)
    [\_SB_.PCI0.PE1A.PXHB]
     acpi_pciehprm: Registered PCI P2P Bridge(01-03) on
    s:b:d:f(00:01:00:02) [\_SB_.PCI0.PE1A.PXHB]
     acpi_pciehprm: P2P(0-4) on pci=b:d:f(0:4:0) acpi=b:d:f(0:4:0) [\_SB_.PCI0.PE2A]
     acpi_pciehprm: Registered PCI P2P Bridge(00-04) on
    s:b:d:f(00:00:04:00) [\_SB_.PCI0.PE2A]
     acpi_pciehprm: P2P(0-5) on pci=b:d:f(0:5:0) acpi=b:d:f(0:5:0) [\_SB_.PCI0.PE2B]
     acpi_pciehprm: Registered PCI P2P Bridge(00-05) on
    s:b:d:f(00:00:05:00) [\_SB_.PCI0.PE2B]
     acpi_pciehprm: P2P(0-6) on pci=b:d:f(0:6:0) acpi=b:d:f(0:6:0) [\_SB_.PCI0.PE3A]
     acpi_pciehprm: Registered PCI P2P Bridge(00-06) on
    s:b:d:f(00:00:06:00) [\_SB_.PCI0.PE3A]
     acpi_pciehprm: P2P(0-13) on pci=b:d:f(0:7:0) acpi=b:d:f(0:7:0)
    [\_SB_.PCI0.PE3B]
     acpi_pciehprm: Registered PCI P2P Bridge(00-13) on
    s:b:d:f(00:00:07:00) [\_SB_.PCI0.PE3B]
     acpi_pciehprm: P2P(0-14) on pci=b:d:f(0:1e:0) acpi=b:d:f(0:1e:0)
    [\_SB_.PCI0.PCIB]
     acpi_pciehprm: Registered PCI P2P Bridge(00-14) on
    s:b:d:f(00:00:1e:00) [\_SB_.PCI0.PCIB]
     pciehprm ACPI init success
     pciehp_probe: Called by hp_drv
     pciehp_probe: DRV_thread pid = 5684
     pcie_init: pdev->vendor 1033 pdev->device 124
     pcie_init: pcie_cap_base 0
     pcie_init: CAP_REG offset 62 cap_reg 161
     pcie_init: SLOT_CAP offset 74 slot_cap 500540
     pcie_init: SLOT_STATUS offset 7a slot_status 100
     pcie_init: SLOT_CTRL offset 78 slot_ctrl 7c0
     pdev = c1b2f800: b:d:f:irq=0x7:1:0:e1
     pci resource[7] start=0x5000(len=0x1000)
     pci resource[8] start=0xd0400000(len=0x100000)
     pci resource[9] start=0xd0900000(len=0x100000)
     HPC vendor_id 1033 device_id 124 ss_vid 0 ss_did 0
    Sep 28 17:39:55 localhost kernel: ACPI: PCI Interrupt 0000:07:01.0[A]
    -> GSI 17 (level, low) -> IRQ 169
     HPC interrupt = 225
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init : Mask HPIE hp_register_write_word SLOT_CTRL 7c0
     pcie_init: Mask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pcie_init: request_irq 225 for hpc0 (returns 0)
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init: slot_cap 500540
     pcie_init: temp_word 7e8
     pcie_init : Unmask HPIE hp_register_write_word SLOT_CTRL with 7e8
     pcie_init: Unmask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pciehp_probe: ctrl->pci_bus f6fd5d80
     pciehp_probe: ctrl bus=0x7, device=1, function=0, irq=a9
     pcie_get_ctlr_slot_config: PSN 10
     get_ctlr_slot_config: bus(0xb) num_slot(0x1) 1st_dev(0x0) psn(0xa)
    ctrlcap(40) for b:d (7:1)
     pciehp_probe: Before calling pciehp_save_config, ctrl->bus 7,ctrl->slot_bus b
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 1, first_device_num = 0
     FirstSupported = 0, LastSupported = 0
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = b, dev = 0
     pciehp_save_config: ID = 3408086
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = c, dev = 0
     pciehp_save_config: ID = 23221077
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus c device 7 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus c dev 7 fun 0
     pciehp_slot_create: busnumber c
     pciehp_save_config: if, new_slot = f6fd5780 bus c dev 7 fun 0
     new_slot->pci_dev = c1b39400
     pciehp_save_config: In while loop
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus c device 7 index 0
     pciehp_slot_find: func-> bus c device 7 function 0 pci_dev c1b39400
     pciehp_save_config: new_slot = f6fd5780 bus c dev 7 fun 0
     pciehp_slot_find: bus c device 7 index 1
     pciehp_slot_find: func-> bus c device 7 function 0 pci_dev c1b39400
     pciehp_save_config: while loop, new_slot = 00000000 bus c dev 7 fun 1
     pciehp_slot_create: busnumber c
     pciehp_save_config: if, new_slot = f731f080 bus c dev 7 fun 1
     new_slot->pci_dev = c1b39000
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
     pciehp_slot_find: bus b device 0 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus b dev 0 fun 0
     pciehp_slot_create: busnumber b
     pciehp_save_config: if, new_slot = f731f180 bus b dev 0 fun 0
     new_slot->pci_dev = c1b39c00
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = d, dev = 0
     pciehp_save_config: Exit
     pciehp_slot_find: bus b device 0 index 0
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev c1b39c00
     pciehp_save_config: new_slot = f731f180 bus b dev 0 fun 0
     pciehp_slot_find: bus b device 0 index 1
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev c1b39c00
     pciehp_save_config: while loop, new_slot = 00000000 bus b dev 0 fun 1
     pciehp_slot_create: busnumber b
     pciehp_save_config: if, new_slot = f731f280 bus b dev 0 fun 2
     new_slot->pci_dev = c1b39800
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
    ---------------------------------------------------------
     pfar:cannot locate acpi bridge of PCI 0xb.
     pciehprm_find_available_resources = 0xffffffff
     unable to locate PCI configuration resources for hot plug add.
    ----------------------------------------------------------
     pciehp_probe: Called by hp_drv
     pciehp_probe: DRV_thread pid = 5684
     pcie_init: pdev->vendor 1033 pdev->device 124
     pcie_init: pcie_cap_base 0
     pcie_init: CAP_REG offset 62 cap_reg 161
     pcie_init: SLOT_CAP offset 74 slot_cap 580540
     pcie_init: SLOT_STATUS offset 7a slot_status 100
     pcie_init: SLOT_CTRL offset 78 slot_ctrl 7c0
     pdev = c1b2f400: b:d:f:irq=0x7:2:0:e9
     pci resource[7] start=0x6000(len=0x1000)
     pci resource[8] start=0xd0500000(len=0x100000)
     pci resource[9] start=0xd0a00000(len=0x100000)
     HPC vendor_id 1033 device_id 124 ss_vid 0 ss_did 0
    Sep 28 17:39:59 localhost kernel: ACPI: PCI Interrupt 0000:07:02.0[A]
    -> GSI 18 (level, low) -> IRQ 177
     HPC interrupt = 233
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init : Mask HPIE hp_register_write_word SLOT_CTRL 7c0
     pcie_init: Mask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pcie_init: request_irq 233 for hpc1 (returns 0)
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init: slot_cap 580540
     pcie_init: temp_word 7e8
     pcie_init : Unmask HPIE hp_register_write_word SLOT_CTRL with 7e8
     pcie_init: Unmask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pciehp_probe: ctrl->pci_bus f6fd5d80
     pciehp_probe: ctrl bus=0x7, device=2, function=0, irq=b1
     pcie_get_ctlr_slot_config: PSN 11
     get_ctlr_slot_config: bus(0xe) num_slot(0x1) 1st_dev(0x0) psn(0xb)
    ctrlcap(40) for b:d (7:2)
     pciehp_probe: Before calling pciehp_save_config, ctrl->bus 7,ctrl->slot_bus e
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 1, first_device_num = 0
     FirstSupported = 0, LastSupported = 0
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = e, dev = 0
     pciehp_save_config: ID = 3408086
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = f, dev = 0
     pciehp_save_config: ID = 23221077
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus f device 7 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus f dev 7 fun 0
     pciehp_slot_create: busnumber f
     pciehp_save_config: if, new_slot = f731f380 bus f dev 7 fun 0
     new_slot->pci_dev = c1b3d400
     pciehp_save_config: In while loop
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus f device 7 index 0
     pciehp_slot_find: func-> bus f device 7 function 0 pci_dev c1b3d400
     pciehp_save_config: new_slot = f731f380 bus f dev 7 fun 0
     pciehp_slot_find: bus f device 7 index 1
     pciehp_slot_find: func-> bus f device 7 function 0 pci_dev c1b3d400
     pciehp_save_config: while loop, new_slot = 00000000 bus f dev 7 fun 1
     pciehp_slot_create: busnumber f
     pciehp_save_config: if, new_slot = f731f480 bus f dev 7 fun 1
     new_slot->pci_dev = c1b3d000
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
     pciehp_slot_find: bus e device 0 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus e dev 0 fun 0
     pciehp_slot_create: busnumber e
     pciehp_save_config: if, new_slot = f731f580 bus e dev 0 fun 0
     new_slot->pci_dev = c1b3dc00
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = 10, dev = 0
     pciehp_save_config: Exit
     pciehp_slot_find: bus e device 0 index 0
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev c1b3dc00
     pciehp_save_config: new_slot = f731f580 bus e dev 0 fun 0
     pciehp_slot_find: bus e device 0 index 1
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev c1b3dc00
     pciehp_save_config: while loop, new_slot = 00000000 bus e dev 0 fun 1
     pciehp_slot_create: busnumber e
     pciehp_save_config: if, new_slot = f731f680 bus e dev 0 fun 2
     new_slot->pci_dev = c1b3d800
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
    ----------------------------------------------------------------
     pfar:cannot locate acpi bridge of PCI 0xe.
     pciehprm_find_available_resources = 0xffffffff
     unable to locate PCI configuration resources for hot plug add.
    ------------------------------------------------------------------
     pcie_port_service_register = 0
     PCI Express Hot Plug Controller Driver version: 0.4
     PCIEHPRM ACPI Slots
     PCI HOST Bridge (0) [\_SB_.PCI0]
         Total BUS Resources:
             base= 0x1 length= 0xff
         BUS Resources:
             base= 0x1 length= 0xff
         Total IO Resources:
             base= 0xd00 length= 0xf300
             base= 0x0 length= 0xcf8
         IO Resources:
             base= 0x0 length= 0xcf8
             base= 0xd00 length= 0xf300
         Total MEM Resources:
             base= 0xd0000000 length= 0x2ec00000
             base= 0xd8000 length= 0x8000
             base= 0xa0000 length= 0x20000
         MEM Resources:
             base= 0xa0000 length= 0x20000
             base= 0xd8000 length= 0x8000
             base= 0xd0000000 length= 0x2ec00000
     PCI P2P Bridge (0-14) [\_SB_.PCI0.PCIB]
     PCI P2P Bridge (0-13) [\_SB_.PCI0.PE3B]
     PCI P2P Bridge (0-6) [\_SB_.PCI0.PE3A]
     PCI P2P Bridge (0-5) [\_SB_.PCI0.PE2B]
     PCI P2P Bridge (0-4) [\_SB_.PCI0.PE2A]
     PCI P2P Bridge (0-1) [\_SB_.PCI0.PE1A]
     PCI P2P Bridge (1-3) [\_SB_.PCI0.PE1A.PXHB]
     PCI P2P Bridge (1-2) [\_SB_.PCI0.PE1A.PXHA]

    ===============================================
    Log when ACPI Disabled
    ===============================================

     Our event thread pid = 5192
     Initialize slot lists
     pciehp_probe: Called by hp_drv
     pciehp_probe: DRV_thread pid = 5188
     pcie_init: pdev->vendor 1033 pdev->device 124
     pcie_init: pcie_cap_base 0
     pcie_init: CAP_REG offset 62 cap_reg 161
     pcie_init: SLOT_CAP offset 74 slot_cap 500540
     pcie_init: SLOT_STATUS offset 7a slot_status 100
     pcie_init: SLOT_CTRL offset 78 slot_ctrl 7c0
     pdev = f7f04800: b:d:f:irq=0x7:1:0:e1
     pci resource[7] start=0x5000(len=0x1000)
     pci resource[9] start=0xd0900000(len=0x100000)
     HPC vendor_id 1033 device_id 124 ss_vid 0 ss_did 0
     HPC interrupt = 225
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init : Mask HPIE hp_register_write_word SLOT_CTRL 7c0
     pcie_init: Mask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pcie_init: request_irq 225 for hpc0 (returns 0)
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init: slot_cap 500540
     pcie_init: temp_word 7e8
     pcie_init : Unmask HPIE hp_register_write_word SLOT_CTRL with 7e8
     pcie_init: Unmask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pciehp_probe: ctrl->pci_bus f5042c80
     pciehp_probe: ctrl bus=0x7, device=1, function=0, irq=e1
     pcie_get_ctlr_slot_config: PSN 10
     get_ctlr_slot_config: bus(0xb) num_slot(0x1) 1st_dev(0x0) psn(0xa)
    ctrlcap(40) for b:d (7:1)
     pciehp_probe: Before calling pciehp_save_config, ctrl->bus 7,ctrl->slot_bus b
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 1, first_device_num = 0
     FirstSupported = 0, LastSupported = 0
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = b, dev = 0
     pciehp_save_config: ID = 3408086
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = c, dev = 0
     pciehp_save_config: ID = 23221077
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus c device 7 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus c dev 7 fun 0
     pciehp_slot_create: busnumber c
     pciehp_save_config: if, new_slot = f695f280 bus c dev 7 fun 0
     new_slot->pci_dev = f7f05400
     pciehp_save_config: In while loop
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus c device 7 index 0
     pciehp_slot_find: func-> bus c device 7 function 0 pci_dev f7f05400
     pciehp_save_config: new_slot = f695f280 bus c dev 7 fun 0
     pciehp_slot_find: bus c device 7 index 1
     pciehp_slot_find: func-> bus c device 7 function 0 pci_dev f7f05400
     pciehp_save_config: while loop, new_slot = 00000000 bus c dev 7 fun 1
     pciehp_slot_create: busnumber c
     pciehp_save_config: if, new_slot = f695f080 bus c dev 7 fun 1
     new_slot->pci_dev = f7f05000
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     !!!!event_thread sleeping
     Nothing there
     pciehp_save_config: Exit
     pciehp_slot_find: bus b device 0 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus b dev 0 fun 0
     pciehp_slot_create: busnumber b
     pciehp_save_config: if, new_slot = f695f580 bus b dev 0 fun 0
     new_slot->pci_dev = f7f05c00
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = b
     pciehp_save_config: bus = d, dev = 0
     pciehp_save_config: Exit
     pciehp_slot_find: bus b device 0 index 0
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev f7f05c00
     pciehp_save_config: new_slot = f695f580 bus b dev 0 fun 0
     pciehp_slot_find: bus b device 0 index 1
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev f7f05c00
     pciehp_save_config: while loop, new_slot = 00000000 bus b dev 0 fun 1
     pciehp_slot_create: busnumber b
     pciehp_save_config: if, new_slot = f695f480 bus b dev 0 fun 2
     new_slot->pci_dev = f7f05800
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
    Nothing there
     pciehp_save_config: Exit
     Save_used_res of PCI bridge b:d=0x7:1, sc=0x507
     pciehprm_find_available_resources: pciehp_save_used_resources rc = 0
     pciehp_resource_sort_and_combine: head = f78e36b4, *head = f30c5d80
     *head->next = 00000000
     pciehprm_find_available_resources:pre-Bind PCI 0x7 Ctrl Resource Dump
     : BUS Resources:
             base= 0xc length= 0x2
     : IO Resources:
             base= 0x5000 length= 0x1000
     : MEM Resources:
             base= 0xd0400000 length= 0x100000
     : PMEM Resources:
             base= 0xd0910000 length= 0x100000
     pciehprm_find_available_resources: before bind_pci_resources_to slots
     bind_pci_resources_to_slots: vid = 3408086 bus b dev 0 fun 0
     pciehp_slot_find: bus b device 0 index 0
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev f7f05c00
     bind_pci_resources_to_slots: func = f695f580
     Save_used_res of PCI bridge b:d=0xb:0, sc=0x107
     pciehp_resource_sort_and_combine: head = f78e36b4, *head = f5c6e840
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e36b0, *head = f5dd8780
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e36a8, *head = f5dd8760
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e36ac, *head = f5c6e880
     *head->next = 00000000
     : BUS Resources:
             base= 0xc length= 0x1
     : IO Resources:
             base= 0x5000 length= 0x1000
     : MEM Resources:
             base= 0xd0400000 length= 0x100000
     : PMEM Resources:
             base= 0xd0910000 length= 0x100000
     aCCF:existing PCI 0x7 Func ResourceDump
     bind_pci_resources_to_slots: vid = 3418086 bus b dev 0 fun 2
     pciehp_slot_find: bus b device 0 index 2
     pciehp_slot_find: func-> bus b device 0 function 0 pci_dev f7f05c00
     pciehp_slot_find: In while loop, func-> bus b device 0 function 2
    pci_dev f7f05800
     pciehp_slot_find: while loop, found 1, index 2
     pciehp_slot_find: Found bus b dev 0 func 2
     bind_pci_resources_to_slots: func = f695f480
     Save_used_res of PCI bridge b:d=0xb:0, sc=0x107
     pciehp_resource_sort_and_combine: head = f78e36b4, *head = f47559a0
     *head->next = 00000000
     : BUS Resources:
             base= 0xd length= 0x1
     aCCF:existing PCI 0x7 Func ResourceDump
     pciehprm_find_available_resources:post-Bind PCI 0x7 Ctrl Resource Dump
     : BUS Resources:
             base= 0xe length= 0x0
     : IO Resources:
             base= 0x6000 length= 0x0
     : MEM Resources:
             base= 0xd0500000 length= 0x0
     : PMEM Resources:
             base= 0xd0a10000 length= 0x0
     init_slots
     hpc_get_power_status: SLOT_CTRL 78 value read 7e8
     hpc_get_attention_status: SLOT_CTRL 78, value read 7e8
     Registering bus=b dev=0 hp_slot=0 sun=a slot_device_offset=0
     p_slot = f5afed80
     pciehp_probe: t_slot f5afed80
     pciehp_probe: adpater value 0
     pciehp_probe: Called by hp_drv
     pciehp_probe: DRV_thread pid = 5188
     pcie_init: pdev->vendor 1033 pdev->device 124
     pcie_init: pcie_cap_base 0
     pcie_init: CAP_REG offset 62 cap_reg 161
     pcie_init: SLOT_CAP offset 74 slot_cap 580540
     pcie_init: SLOT_STATUS offset 7a slot_status 100
     pcie_init: SLOT_CTRL offset 78 slot_ctrl 7c0
     pdev = f7f04400: b:d:f:irq=0x7:2:0:e9
     pci resource[7] start=0x6000(len=0x1000)
     pci resource[8] start=0xd0500000(len=0x100000)
     pci resource[9] start=0xd0a00000(len=0x100000)
     HPC vendor_id 1033 device_id 124 ss_vid 0 ss_did 0
     HPC interrupt = 233
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init : Mask HPIE hp_register_write_word SLOT_CTRL 7c0
     pcie_init: Mask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pcie_init: request_irq 233 for hpc1 (returns 0)
     pcie_init: SLOT_CTRL 78 value read 7c0
     pcie_init: slot_cap 580540
     pcie_init: temp_word 7e8
     pcie_init : Unmask HPIE hp_register_write_word SLOT_CTRL with 7e8
     pcie_init: Unmask HPIE SLOT_STATUS offset 7a reads slot_status 110
     pcie_init: SLOT_STATUS offset 7a writes slot_status 1f
     pciehp_probe: ctrl->pci_bus f695fa80
     pciehp_probe: ctrl bus=0x7, device=2, function=0, irq=e9
     pcie_get_ctlr_slot_config: PSN 11
     get_ctlr_slot_config: bus(0xe) num_slot(0x1) 1st_dev(0x0) psn(0xb)
    ctrlcap(40) for b:d (7:2)
     pciehp_probe: Before calling pciehp_save_config, ctrl->bus 7,ctrl->slot_bus e
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 1, first_device_num = 0
     FirstSupported = 0, LastSupported = 0
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = e, dev = 0
     pciehp_save_config: ID = 3408086
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = f, dev = 0
     pciehp_save_config: ID = 23221077
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus f device 7 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus f dev 7 fun 0
     pciehp_slot_create: busnumber f
     pciehp_save_config: if, new_slot = f695f680 bus f dev 7 fun 0
     new_slot->pci_dev = f7f19400
     pciehp_save_config: In while loop
     class_code = c, header_type = 80
     pciehp_save_config: In do loop
     pciehp_slot_find: bus f device 7 index 0
     pciehp_slot_find: func-> bus f device 7 function 0 pci_dev f7f19400
     pciehp_save_config: new_slot = f695f680 bus f dev 7 fun 0
     pciehp_slot_find: bus f device 7 index 1
     pciehp_slot_find: func-> bus f device 7 function 0 pci_dev f7f19400
     pciehp_save_config: while loop, new_slot = 00000000 bus f dev 7 fun 1
     pciehp_slot_create: busnumber f
     pciehp_save_config: if, new_slot = f5d42780 bus f dev 7 fun 1
     new_slot->pci_dev = f7f19000
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
     pciehp_slot_find: bus e device 0 index 0
     pciehp_slot_find: func == NULL
     pciehp_save_config: new_slot = 00000000 bus e dev 0 fun 0
     pciehp_slot_create: busnumber e
     pciehp_save_config: if, new_slot = f5d42680 bus e dev 0 fun 0
     new_slot->pci_dev = f7f19c00
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     class_code = 6, header_type = 81
     pciehp_save_config: In do loop
     pciehp_save_config: Enter
     pciehp_save_config: num_ctlr_slots = 0, first_device_num = 0
     FirstSupported = 0, LastSupported = 31
     pciehp_save_config: pci_bus->number = e
     pciehp_save_config: bus = 10, dev = 0
     pciehp_save_config: Exit
     pciehp_slot_find: bus e device 0 index 0
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev f7f19c00
     pciehp_save_config: new_slot = f5d42680 bus e dev 0 fun 0
     pciehp_slot_find: bus e device 0 index 1
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev f7f19c00
     pciehp_save_config: while loop, new_slot = 00000000 bus e dev 0 fun 1
     pciehp_slot_create: busnumber e
     pciehp_save_config: if, new_slot = f3964e80 bus e dev 0 fun 2
     new_slot->pci_dev = f7f19800
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: In while loop
     Nothing there
     pciehp_save_config: Exit
     Save_used_res of PCI bridge b:d=0x7:2, sc=0x507
     pciehprm_find_available_resources: pciehp_save_used_resources rc = 0
     pciehp_resource_sort_and_combine: head = f78e37b4, *head = f3339a20
     *head->next = 00000000
     pciehprm_find_available_resources:pre-Bind PCI 0x7 Ctrl Resource Dump
     : BUS Resources:
             base= 0xf length= 0x2
     : IO Resources:
             base= 0x6000 length= 0x1000
     : MEM Resources:
             base= 0xd0500000 length= 0x100000
     : PMEM Resources:
             base= 0xd0a10000 length= 0x100000
     pciehprm_find_available_resources: before bind_pci_resources_to slots
     bind_pci_resources_to_slots: vid = 3408086 bus e dev 0 fun 0
     pciehp_slot_find: bus e device 0 index 0
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev f7f19c00
     bind_pci_resources_to_slots: func = f5d42680
     Save_used_res of PCI bridge b:d=0xe:0, sc=0x107
     pciehp_resource_sort_and_combine: head = f78e37b4, *head = f3339960
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e37b0, *head = f3339aa0
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e37a8, *head = f3339940
     *head->next = 00000000
     pciehp_resource_sort_and_combine: head = f78e37ac, *head = f3339b00
     *head->next = 00000000
     : BUS Resources:
             base= 0xf length= 0x1
     : IO Resources:
             base= 0x6000 length= 0x1000
     : MEM Resources:
             base= 0xd0500000 length= 0x100000
     : PMEM Resources:
             base= 0xd0a10000 length= 0x100000
     aCCF:existing PCI 0x7 Func ResourceDump
     bind_pci_resources_to_slots: vid = 3418086 bus e dev 0 fun 2
     pciehp_slot_find: bus e device 0 index 2
     pciehp_slot_find: func-> bus e device 0 function 0 pci_dev f7f19c00
     pciehp_slot_find: In while loop, func-> bus e device 0 function 2
    pci_dev f7f19800
     pciehp_slot_find: while loop, found 1, index 2
     pciehp_slot_find: Found bus e dev 0 func 2
     bind_pci_resources_to_slots: func = f3964e80
     Save_used_res of PCI bridge b:d=0xe:0, sc=0x107
     pciehp_resource_sort_and_combine: head = f78e37b4, *head = f3339c60
     *head->next = 00000000
     : BUS Resources:
             base= 0x10 length= 0x1
     aCCF:existing PCI 0x7 Func ResourceDump
     pciehprm_find_available_resources:post-Bind PCI 0x7 Ctrl Resource Dump
     : BUS Resources:
             base= 0x11 length= 0x0
     : IO Resources:
             base= 0x7000 length= 0x0
     : MEM Resources:
             base= 0xd0600000 length= 0x0
     : PMEM Resources:
             base= 0xd0b10000 length= 0x0
     init_slots
     hpc_get_power_status: SLOT_CTRL 78 value read 7e8
     hpc_get_attention_status: SLOT_CTRL 78, value read 7e8
     Registering bus=e dev=0 hp_slot=0 sun=b slot_device_offset=0
     p_slot = f5afe980
     pciehp_probe: t_slot f5afe980
     pciehp_probe: adpater value 0
     pcie_port_service_register = 0
     PCI Express Hot Plug Controller Driver version: 0.4
    -
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