hpet timers gone?

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* hpet timers gone?
@ 2010-05-24 10:19 Udo van den Heuvel
  2010-05-26 19:02 ` Randy Dunlap
  0 siblings, 1 reply; 12+ messages in thread
From: Udo van den Heuvel @ 2010-05-24 10:19 UTC (permalink / raw)
  To: linux-kernel

Hello,

What has happened between 2.6.30.9 and 2.6.32.8 with regard to hpet timers?

dmesg output from 2.6.30.9 does show activity but 2.6.32.8 and beyond don't.
Also /proc/timer_list doesn't show hpet anymore. Also on 2.6.34 no hpet
in timer_list.

relevant .config:
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_HPET=y
CONFIG_HPET_MMAP=y

And I have hpet=force on the kernel commandline for this VIA Epia
LT10000 board.

Any ideas?

Kind regards,
Udo

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-05-24 10:19 hpet timers gone? Udo van den Heuvel
@ 2010-05-26 19:02 ` Randy Dunlap
  2010-05-29  4:29   ` Udo van den Heuvel
  2010-05-30  7:34   ` Udo van den Heuvel
  0 siblings, 2 replies; 12+ messages in thread
From: Randy Dunlap @ 2010-05-26 19:02 UTC (permalink / raw)
  To: Udo van den Heuvel; +Cc: linux-kernel

On Mon, 24 May 2010 12:19:47 +0200 Udo van den Heuvel wrote:

> Hello,
> 
> What has happened between 2.6.30.9 and 2.6.32.8 with regard to hpet timers?
> 
> dmesg output from 2.6.30.9 does show activity but 2.6.32.8 and beyond don't.
> Also /proc/timer_list doesn't show hpet anymore. Also on 2.6.34 no hpet
> in timer_list.
> 
> relevant .config:
> CONFIG_HPET_TIMER=y
> CONFIG_HPET_EMULATE_RTC=y
> CONFIG_HPET=y
> CONFIG_HPET_MMAP=y

Same here.

> And I have hpet=force on the kernel commandline for this VIA Epia
> LT10000 board.
> 
> Any ideas?

On x86 peecee:

$ uname -a
Linux chimera.site 2.6.34 #2 SMP Tue May 18 10:52:27 PDT 2010 x86_64 x86_64 x86_64 GNU/Linux
$ grep hpet /proc/timer_list
Clock Event Device: hpet
 set_next_event: hpet_legacy_next_event
 set_mode:       hpet_legacy_set_mode



$ dmesg | grep -i hpet
[    0.000000] ACPI: HPET 00000000cf6f3000 00038 (v01 GATEWA SYSTEM   0000017E MSFT 01000013)
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] hpet clockevent registered
[    0.000000] TSC: PIT calibration matches HPET. 1 loops
[    0.771604] HPET: 3 timers in total, 0 timers will be used for per-cpu timer
[    0.771604] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[    0.771604] hpet0: 3 comparators, 64-bit 14.318180 MHz counter


What does dmesg show on your machine?

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-05-26 19:02 ` Randy Dunlap
@ 2010-05-29  4:29   ` Udo van den Heuvel
  2010-05-30  7:34   ` Udo van den Heuvel
  1 sibling, 0 replies; 12+ messages in thread
From: Udo van den Heuvel @ 2010-05-29  4:29 UTC (permalink / raw)
  To: Randy Dunlap; +Cc: linux-kernel

On 2010-05-26 21:02, Randy Dunlap wrote:
> On Mon, 24 May 2010 12:19:47 +0200 Udo van den Heuvel wrote:
>> What has happened between 2.6.30.9 and 2.6.32.8 with regard to hpet timers?
>>
>> dmesg output from 2.6.30.9 does show activity but 2.6.32.8 and beyond don't.
>> Also /proc/timer_list doesn't show hpet anymore. Also on 2.6.34 no hpet
>> in timer_list.
>>
>> relevant .config:
>> CONFIG_HPET_TIMER=y
>> CONFIG_HPET_EMULATE_RTC=y
>> CONFIG_HPET=y
>> CONFIG_HPET_MMAP=y
> 
> Same here.
> 
>> And I have hpet=force on the kernel commandline for this VIA Epia
>> LT10000 board.
>>
>> Any ideas?
(...)
> 
> What does dmesg show on your machine?

Please see below.
The LT10000 replaced a VIA Epia EK8000 where hpet did work.
LT10000 has VIA CX700 chips.

Udo

Linux version 2.6.34 (root@epia) (gcc version 4.4.3 20100127 (Red Hat
4.4.3-4) (GCC) ) #6 PREEMPT Tue May 25 16:08:30 CEST 2010
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000003bfb0000 (usable)
 BIOS-e820: 000000003bfb0000 - 000000003bfbe000 (ACPI data)
 BIOS-e820: 000000003bfbe000 - 000000003bff0000 (ACPI NVS)
 BIOS-e820: 000000003bff0000 - 000000003c000000 (reserved)
 BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved)
Notice: NX (Execute Disable) protection missing in CPU or disabled in BIOS!
DMI 2.3 present.
AMI BIOS detected: BIOS may corrupt low RAM, working around it.
e820 update range: 0000000000000000 - 0000000000010000 (usable) ==>
(reserved)
e820 update range: 0000000000000000 - 0000000000001000 (usable) ==>
(reserved)
e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
last_pfn = 0x3bfb0 max_arch_pfn = 0x100000
MTRR default type: uncachable
MTRR fixed ranges enabled:
  00000-9FFFF write-back
  A0000-DFFFF uncachable
  E0000-EFFFF write-through
  F0000-FFFFF write-protect
MTRR variable ranges enabled:
  0 base 000000000 mask FC0000000 write-back
  1 base 03C000000 mask FFC000000 uncachable
  2 disabled
  3 disabled
  4 disabled
  5 disabled
  6 disabled
  7 disabled
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
original variable MTRRs
reg 0, base: 0GB, range: 1GB, type WB
reg 1, base: 960MB, range: 64MB, type UC
total RAM covered: 960M
Found optimal setting for mtrr clean up
 gran_size: 64K 	chunk_size: 128M 	num_reg: 2  	lose cover RAM: 0G
New variable MTRRs
reg 0, base: 0GB, range: 1GB, type WB
reg 1, base: 960MB, range: 64MB, type UC
initial memory mapped : 0 - 01c00000
found SMP MP-table at [c00ff780] ff780
init_memory_mapping: 0000000000000000-00000000377fe000
 0000000000 - 0000400000 page 4k
 0000400000 - 0037400000 page 2M
 0037400000 - 00377fe000 page 4k
kernel direct mapping tables up to 377fe000 @ 14000-19000
RAMDISK: 379be000 - 37ff0000
Allocated new RAMDISK: 00100000 - 007310d9
Move RAMDISK from 00000000379be000 - 0000000037fef0d8 to 00100000 - 007310d8
ACPI: RSDP 000f7ee0 00024 (v02 ACPIAM)
ACPI: XSDT 3bfb0100 00044 (v01 A M I  OEMXSDT  12000705 MSFT 00000097)
ACPI: FACP 3bfb0290 000F4 (v03 A M I  OEMFACP  12000705 MSFT 00000097)
ACPI: DSDT 3bfb03f0 034F7 (v01  1ADEL 1ADEL007 00000007 INTL 02002026)
ACPI: FACS 3bfbe000 00040
ACPI: APIC 3bfb0390 00054 (v01 A M I  OEMAPIC  12000705 MSFT 00000097)
ACPI: OEMB 3bfbe040 00046 (v01 A M I  AMI_OEM  12000705 MSFT 00000097)
ACPI: SSDT 3bfbe090 00175 (v01    AMI   P001PM 00000001 INTL 20051117)
ACPI: Local APIC address 0xfee00000
71MB HIGHMEM available.
887MB LOWMEM available.
  mapped low ram: 0 - 377fe000
  low ram: 0 - 377fe000
Zone PFN ranges:
  DMA      0x00000010 -> 0x00001000
  Normal   0x00001000 -> 0x000377fe
  HighMem  0x000377fe -> 0x0003bfb0
Movable zone start PFN for each node
early_node_map[2] active PFN ranges
    0: 0x00000010 -> 0x0000009f
    0: 0x00000100 -> 0x0003bfb0
On node 0 totalpages: 245567
free_area_init_node: node 0, pgdat c13e6c94, node_mem_map c186f200
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 3951 pages, LIFO batch:0
  Normal zone: 1744 pages used for memmap
  Normal zone: 221486 pages, LIFO batch:31
  HighMem zone: 144 pages used for memmap
  HighMem zone: 18210 pages, LIFO batch:3
Using APIC driver default
ACPI: PM-Timer IO Port: 0x808
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 1, version 3, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Using ACPI (MADT) for SMP configuration information
nr_irqs_gsi: 24
early_res array is doubled to 64 at [15000 - 157ff]
Allocating PCI resources starting at 3c000000 (gap: 3c000000:c2c00000)
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 243647
Kernel command line: ro root=LABEL=/ hisax=36,2 selinux=0
pci=usepirqmask audit=0 hpet=force usbcore.autosuspend=1
SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us
acpi_enforce_resources=lax
audit: disabled (until reboot)
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
Subtract (36 early reservations)
  #1 [0001000000 - 00018651c8]   TEXT DATA BSS
  #2 [0001866000 - 000186d1c1]             BRK
  #3 [00000ff790 - 0000100000]   BIOS reserved
  #4 [00000ff780 - 00000ff790]    MP-table mpf
  #5 [000009fc00 - 00000fc6a0]   BIOS reserved
  #6 [00000fc7c8 - 00000ff780]   BIOS reserved
  #7 [00000fc6a0 - 00000fc7c8]    MP-table mpc
  #8 [0000010000 - 0000014000]     ACPI WAKEUP
  #9 [0000014000 - 0000015000]         PGTABLE
  #10 [0000100000 - 0000732000]     NEW RAMDISK
  #11 [000186e000 - 000186f000]         BOOTMEM
  #12 [000186f000 - 0001fef000]         BOOTMEM
  #13 [0001865200 - 0001865204]         BOOTMEM
  #14 [0001865240 - 0001865480]         BOOTMEM
  #15 [0001865480 - 00018654d4]         BOOTMEM
  #16 [0001fef000 - 0001ff8000]         BOOTMEM
  #17 [0001865500 - 0001865508]         BOOTMEM
  #18 [0001ff8000 - 0001ff9200]         BOOTMEM
  #19 [0001865540 - 0001865567]         BOOTMEM
  #20 [0001865580 - 00018656b4]         BOOTMEM
  #21 [00018656c0 - 0001865700]         BOOTMEM
  #22 [0001865700 - 0001865740]         BOOTMEM
  #23 [0001865740 - 0001865780]         BOOTMEM
  #24 [0001865780 - 00018657c0]         BOOTMEM
  #25 [00018657c0 - 0001865800]         BOOTMEM
  #26 [0001865800 - 0001865840]         BOOTMEM
  #27 [0001865840 - 0001865880]         BOOTMEM
  #28 [0001865880 - 00018658c0]         BOOTMEM
  #29 [00018658c0 - 0001865900]         BOOTMEM
  #30 [0001865900 - 0001865940]         BOOTMEM
  #31 [0001865940 - 00018659f0]         BOOTMEM
  #32 [0001865a00 - 0001865ab0]         BOOTMEM
  #33 [0001ff9200 - 0001ffd200]         BOOTMEM
  #34 [0001ffd200 - 000207d200]         BOOTMEM
  #35 [000207d200 - 00020bd200]         BOOTMEM
Initializing HighMem for node 0 (000377fe:0003bfb0)
Memory: 958760k/982720k available (2515k kernel code, 23508k reserved,
1495k data, 328k init, 73416k highmem)
virtual kernel memory layout:
    fixmap  : 0xfffa4000 - 0xfffff000   ( 364 kB)
    pkmap   : 0xff800000 - 0xffc00000   (4096 kB)
    vmalloc : 0xf7ffe000 - 0xff7fe000   ( 120 MB)
    lowmem  : 0xc0000000 - 0xf77fe000   ( 887 MB)
      .init : 0xc13eb000 - 0xc143d000   ( 328 kB)
      .data : 0xc1274df7 - 0xc13eac9c   (1495 kB)
      .text : 0xc1000000 - 0xc1274df7   (2515 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Experimental preemptable hierarchical RCU implementation.
NR_IRQS:288
Extended CMOS year: 2000
Console: colour VGA+ 80x25
console [tty0] enabled
Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
... MAX_LOCKDEP_SUBCLASSES:  8
... MAX_LOCK_DEPTH:          48
... MAX_LOCKDEP_KEYS:        8191
... CLASSHASH_SIZE:          4096
... MAX_LOCKDEP_ENTRIES:     16384
... MAX_LOCKDEP_CHAINS:      32768
... CHAINHASH_SIZE:          16384
 memory used by lock dependency info: 3551 kB
 per task-struct memory footprint: 1152 bytes
Fast TSC calibration using PIT
Detected 997.437 MHz processor.
Calibrating delay loop (skipped), value calculated using timer
frequency.. 1994.87 BogoMIPS (lpj=3989748)
Security Framework initialized
SELinux:  Disabled at boot.
Mount-cache hash table entries: 512
Performance Events:
CPU: Centaur VIA Esther processor 1000MHz stepping 09
Checking 'hlt' instruction... OK.
ACPI: Core revision 20100121
Enabling APIC mode:  Flat.  Using 1 I/O APICs
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: PCI BIOS revision 3.00 entry at 0xf0031, last bus=3
PCI: Using configuration type 1 for base access
bio: create slab <bio-0> at 0
ACPI: EC: Look up EC in DSDT
ACPI: Executed 1 blocks of module-level executable AML code
ACPI: Interpreter enabled
ACPI: (supports S0 S1 S3 S5)
ACPI: Using IOAPIC for interrupt routing
ACPI Warning: Incorrect checksum in table [OEMB] - E7, should be 20
(20100121/tbutils-314)
ACPI: No dock devices found.
PCI: Ignoring host bridge windows from ACPI; if necessary, use
"pci=use_crs" and report a bug
ACPI: PCI Root Bridge [PCI0] (0000:00)
pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cf7] (ignored)
pci_root PNP0A03:00: host bridge window [io  0x0d00-0xffff] (ignored)
pci_root PNP0A03:00: host bridge window [mem 0x000a0000-0x000bffff]
(ignored)
pci_root PNP0A03:00: host bridge window [mem 0x000d0000-0x000dffff]
(ignored)
pci_root PNP0A03:00: host bridge window [mem 0x3c000000-0xffffffff]
(ignored)
pci 0000:00:00.0: reg 10: [mem 0xe0000000-0xefffffff pref]
pci 0000:00:01.0: supports D1
pci 0000:00:0f.0: reg 20: [io  0xfc00-0xfc0f]
pci 0000:00:10.0: reg 20: [io  0xec00-0xec1f]
pci 0000:00:10.0: supports D1 D2
pci 0000:00:10.0: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:00:10.0: PME# disabled
pci 0000:00:10.1: reg 20: [io  0xe880-0xe89f]
pci 0000:00:10.1: supports D1 D2
pci 0000:00:10.1: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:00:10.1: PME# disabled
pci 0000:00:10.2: reg 20: [io  0xe800-0xe81f]
pci 0000:00:10.2: supports D1 D2
pci 0000:00:10.2: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:00:10.2: PME# disabled
pci 0000:00:10.4: reg 10: [mem 0xfebffc00-0xfebffcff]
pci 0000:00:10.4: supports D1 D2
pci 0000:00:10.4: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:00:10.4: PME# disabled
pci 0000:01:00.0: reg 10: [mem 0xa0000000-0xbfffffff pref]
pci 0000:01:00.0: reg 14: [mem 0xfd000000-0xfdffffff]
pci 0000:01:00.0: reg 30: [mem 0xfe8f0000-0xfe8fffff pref]
pci 0000:01:00.0: supports D1 D2
pci 0000:00:01.0: PCI bridge to [bus 01-01]
pci 0000:00:01.0:   bridge window [io  0xf000-0x0000] (disabled)
pci 0000:00:01.0:   bridge window [mem 0xfc800000-0xfe8fffff]
pci 0000:00:01.0:   bridge window [mem 0x9ff00000-0xdfefffff pref]
pci 0000:02:01.0: reg 10: [mem 0xfe9fc000-0xfe9fffff 64bit]
pci 0000:02:01.0: PME# supported from D0 D3hot D3cold
pci 0000:02:01.0: PME# disabled
pci 0000:00:13.0: PCI bridge to [bus 02-02]
pci 0000:00:13.0:   bridge window [io  0xf000-0x0000] (disabled)
pci 0000:00:13.0:   bridge window [mem 0xfe900000-0xfe9fffff]
pci 0000:00:13.0:   bridge window [mem 0xfff00000-0x000fffff pref]
(disabled)
pci 0000:03:08.0: reg 10: [io  0xd800-0xd8ff]
pci 0000:03:08.0: reg 14: [mem 0xfeaffc00-0xfeaffcff]
pci 0000:03:08.0: supports D1 D2
pci 0000:03:08.0: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:03:08.0: PME# disabled
pci 0000:03:09.0: reg 10: [io  0xd400-0xd4ff]
pci 0000:03:09.0: reg 14: [mem 0xfeaff800-0xfeaff8ff]
pci 0000:03:09.0: supports D1 D2
pci 0000:03:09.0: PME# supported from D0 D1 D2 D3hot D3cold
pci 0000:03:09.0: PME# disabled
pci 0000:03:0f.0: reg 10: [mem 0xfeafe000-0xfeafefff]
pci 0000:03:0f.0: reg 14: [io  0xd000-0xd0ff]
pci 0000:00:13.1: PCI bridge to [bus 03-03] (subtractive decode)
pci 0000:00:13.1:   bridge window [io  0xd000-0xdfff]
pci 0000:00:13.1:   bridge window [mem 0xfea00000-0xfeafffff]
pci 0000:00:13.1:   bridge window [mem 0xfff00000-0x000fffff pref]
(disabled)
pci 0000:00:13.1:   bridge window [io  0x0000-0xffff] (subtractive decode)
pci 0000:00:13.1:   bridge window [mem 0x00000000-0xffffffff]
(subtractive decode)
pci_bus 0000:00: on NUMA node 0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P2._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P3._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 *6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15) *0,
disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 15) *0,
disabled.
vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
SCSI subsystem initialized
libata version 3.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
LinuxPPS API ver. 1 registered
Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
<giometti@linux.it>
PCI: Using ACPI for IRQ routing
PCI: pci_cache_line_size set to 64 bytes
reserve RAM buffer: 000000000009fc00 - 000000000009ffff
reserve RAM buffer: 000000003bfb0000 - 000000003bffffff
Switching to clocksource tsc
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp 00:06: IRQ 4 override to edge, high
pnp 00:07: IRQ 3 override to edge, high
pnp 00:08: IRQ 3 override to edge, high
pnp 00:09: IRQ 3 override to edge, high
pnp: PnP ACPI: found 15 devices
ACPI: ACPI bus type pnp unregistered
system 00:0b: [io  0x0a00-0x0a7f] has been reserved
system 00:0c: [io  0x03e0-0x03e7] has been reserved
system 00:0c: [io  0x04d0-0x04d1] has been reserved
system 00:0c: [io  0x0800-0x087f] has been reserved
system 00:0c: [io  0x0400-0x041f] has been reserved
system 00:0d: [mem 0xfec00000-0xfec00fff] could not be reserved
system 00:0d: [mem 0xfee00000-0xfee00fff] has been reserved
system 00:0e: [mem 0x00000000-0x0009ffff] could not be reserved
system 00:0e: [mem 0x000c0000-0x000cffff] could not be reserved
system 00:0e: [mem 0x000e0000-0x000fffff] could not be reserved
system 00:0e: [mem 0x00100000-0x3bffffff] could not be reserved
pci 0000:00:01.0: PCI bridge to [bus 01-01]
pci 0000:00:01.0:   bridge window [io  disabled]
pci 0000:00:01.0:   bridge window [mem 0xfc800000-0xfe8fffff]
pci 0000:00:01.0:   bridge window [mem 0x9ff00000-0xdfefffff pref]
pci 0000:00:13.0: PCI bridge to [bus 02-02]
pci 0000:00:13.0:   bridge window [io  disabled]
pci 0000:00:13.0:   bridge window [mem 0xfe900000-0xfe9fffff]
pci 0000:00:13.0:   bridge window [mem pref disabled]
pci 0000:00:13.1: PCI bridge to [bus 03-03]
pci 0000:00:13.1:   bridge window [io  0xd000-0xdfff]
pci 0000:00:13.1:   bridge window [mem 0xfea00000-0xfeafffff]
pci 0000:00:13.1:   bridge window [mem pref disabled]
pci 0000:00:01.0: setting latency timer to 64
pci 0000:00:13.0: setting latency timer to 64
pci 0000:00:13.1: setting latency timer to 64
pci_bus 0000:00: resource 0 [io  0x0000-0xffff]
pci_bus 0000:00: resource 1 [mem 0x00000000-0xffffffff]
pci_bus 0000:01: resource 1 [mem 0xfc800000-0xfe8fffff]
pci_bus 0000:01: resource 2 [mem 0x9ff00000-0xdfefffff pref]
pci_bus 0000:02: resource 1 [mem 0xfe900000-0xfe9fffff]
pci_bus 0000:03: resource 0 [io  0xd000-0xdfff]
pci_bus 0000:03: resource 1 [mem 0xfea00000-0xfeafffff]
pci_bus 0000:03: resource 4 [io  0x0000-0xffff]
pci_bus 0000:03: resource 5 [mem 0x00000000-0xffffffff]
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 9, 2097152 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 3, 40960 bytes)
UDP-Lite hash table entries: 512 (order: 3, 40960 bytes)
NET: Registered protocol family 1
pci 0000:00:01.0: disabling DAC on VIA PCI bridge
pci 0000:00:10.0: uhci_check_and_reset_hc: legsup = 0x8030
pci 0000:00:10.0: Performing full reset
pci 0000:00:10.1: uhci_check_and_reset_hc: legsup = 0x8030
pci 0000:00:10.1: Performing full reset
pci 0000:00:10.2: uhci_check_and_reset_hc: legsup = 0x8030
pci 0000:00:10.2: Performing full reset
pci 0000:01:00.0: Boot video device
PCI: CLS 32 bytes, default 64
Trying to unpack rootfs image as initramfs...
Freeing initrd memory: 6344k freed
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
msgmni has been set to 1741
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler cfq registered (default)
input: Sleep Button as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0
ACPI: Sleep Button [SLPB]
input: Power Button as
/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1
ACPI: Power Button [PWRB]
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input2
ACPI: Power Button [PWRF]
Real Time Clock Driver v1.12b
VIA RNG detected
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:07: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
00:08: ttyS2 at I/O 0xa80 (irq = 3) is a 16550A
00:09: ttyS3 at I/O 0xa88 (irq = 3) is a 16550A
brd: module loaded
Uniform Multi-Platform E-IDE driver
via82cxxx 0000:00:0f.0: VIA cx700 (rev 00) IDE UDMA133
via82cxxx 0000:00:0f.0: IDE controller (0x1106:0x5324 rev 0x00)
via82cxxx 0000:00:0f.0: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xfc00-0xfc07
    ide1: BM-DMA at 0xfc08-0xfc0f
Probing IDE interface ide0...
Probing IDE interface ide1...
hdc: WDC WD800JB-00JJA0, ATA DISK drive
hdc: host max PIO5 wanted PIO255(auto-tune) selected PIO4
hdc: UDMA/100 mode selected
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide_generic: please use "probe_mask=0x3f" module parameter for probing
all legacy ISA IDE ports
ide-gd driver 1.18
hdc: max request size: 128KiB
hdc: 156301488 sectors (80026 MB) w/8192KiB Cache, CHS=65535/16/63
hdc: cache flushes supported
 hdc: hdc1 hdc2 < hdc5 hdc6 hdc7 hdc8 hdc9 hdc10 hdc11 hdc12 hdc13 hdc14
hdc15 hdc16 >
ide-cd driver 5.00
via-rhine.c:v1.10-LK1.4.3 2007-03-06 Written by Donald Becker
via-rhine 0000:03:08.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
eth0: VIA Rhine III at 0xfeaffc00, 00:40:63:f6:02:00, IRQ 18.
eth0: MII PHY found at address 1, status 0x786d advertising 05e1 Link 41e1.
via-rhine 0000:03:09.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
eth1: VIA Rhine III at 0xfeaff800, 00:40:63:f6:02:01, IRQ 19.
eth1: MII PHY found at address 1, status 0x786d advertising 05e1 Link c5e1.
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
PPP BSD Compression module registered
usbcore: registered new interface driver libusual
PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
PNP: PS/2 appears to have AUX port disabled, if this is incorrect please
boot with i8042.nopnp
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
input: PC Speaker as /devices/platform/pcspkr/input/input3
PPS line discipline registered
device-mapper: ioctl: 4.17.0-ioctl (2010-03-05) initialised:
dm-devel@redhat.com
cpuidle: using governor ladder
cpuidle: using governor menu
padlock: Using VIA PadLock ACE for AES algorithm.
padlock: Using VIA PadLock ACE for SHA1/SHA256 algorithms.
nf_conntrack version 0.5.0 (15079 buckets, 60316 max)
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP cubic registered
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
NET: Registered protocol family 17
Using IPI Shortcut mode
Freeing unused kernel memory: 328k freed
input: AT Translated Set 2 keyboard as
/devices/platform/i8042/serio0/input/input4
dracut: dracut-005-2.fc12
udev: starting version 145
dracut: Starting plymouth daemon
uhci_hcd: USB Universal Host Controller Interface driver
uhci_hcd 0000:00:10.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
uhci_hcd 0000:00:10.0: UHCI Host Controller
drivers/usb/core/inode.c: creating file 'devices'
drivers/usb/core/inode.c: creating file '001'
uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:10.0: detected 2 ports
uhci_hcd 0000:00:10.0: uhci_check_and_reset_hc: cmd = 0x0000
uhci_hcd 0000:00:10.0: Performing full reset
uhci_hcd 0000:00:10.0: supports USB remote wakeup
uhci_hcd 0000:00:10.0: irq 20, io base 0x0000ec00
usb usb1: default language 0x0409
usb usb1: udev 1, busnum 1, minor = 0
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: UHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.34 uhci_hcd
usb usb1: SerialNumber: 0000:00:10.0
usb usb1: usb_probe_device
usb usb1: configuration #1 chosen from 1 choice
usb usb1: adding 1-0:1.0 (config #1, interface 0)
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: no power switching (usb 1.0)
hub 1-0:1.0: individual port over-current protection
hub 1-0:1.0: power on to power good time: 2ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: trying to enable port power on non-switchable hub
drivers/usb/core/inode.c: creating file '001'
uhci_hcd 0000:00:10.1: PCI INT B -> GSI 22 (level, low) -> IRQ 22
uhci_hcd 0000:00:10.1: UHCI Host Controller
drivers/usb/core/inode.c: creating file '002'
uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:10.1: detected 2 ports
uhci_hcd 0000:00:10.1: uhci_check_and_reset_hc: cmd = 0x0000
uhci_hcd 0000:00:10.1: Performing full reset
uhci_hcd 0000:00:10.1: supports USB remote wakeup
uhci_hcd 0000:00:10.1: irq 22, io base 0x0000e880
usb usb2: default language 0x0409
usb usb2: udev 1, busnum 2, minor = 128
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: UHCI Host Controller
usb usb2: Manufacturer: Linux 2.6.34 uhci_hcd
usb usb2: SerialNumber: 0000:00:10.1
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd,
not after
ehci_hcd: block sizes: qh 60 qtd 96 itd 160 sitd 96
usb usb2: usb_probe_device
usb usb2: configuration #1 chosen from 1 choice
usb usb2: adding 2-0:1.0 (config #1, interface 0)
hub 2-0:1.0: usb_probe_interface
hub 2-0:1.0: usb_probe_interface - got id
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
hub 2-0:1.0: standalone hub
hub 2-0:1.0: no power switching (usb 1.0)
hub 2-0:1.0: individual port over-current protection
hub 2-0:1.0: power on to power good time: 2ms
hub 2-0:1.0: local power source is good
hub 2-0:1.0: trying to enable port power on non-switchable hub
drivers/usb/core/inode.c: creating file '001'
ehci_hcd 0000:00:10.4: PCI INT D -> GSI 23 (level, low) -> IRQ 23
ehci_hcd 0000:00:10.4: EHCI Host Controller
drivers/usb/core/inode.c: creating file '003'
ehci_hcd 0000:00:10.4: new USB bus registered, assigned bus number 3
ehci_hcd 0000:00:10.4: reset hcs_params 0x103206 dbg=1 cc=3 pcc=2
ordered !ppc ports=6
ehci_hcd 0000:00:10.4: reset hcc_params 6872 thresh 7 uframes 256/512/1024
ehci_hcd 0000:00:10.4: debug port 1
ehci_hcd 0000:00:10.4: reset command 080002 (park)=0 ithresh=8
period=1024 Reset HALT
ehci_hcd 0000:00:10.4: MWI active
ehci_hcd 0000:00:10.4: supports USB remote wakeup
ehci_hcd 0000:00:10.4: irq 23, io mem 0xfebffc00
ehci_hcd 0000:00:10.4: reset command 080002 (park)=0 ithresh=8
period=1024 Reset HALT
ehci_hcd 0000:00:10.4: init command 010009 (park)=0 ithresh=1 period=256 RUN
ehci_hcd 0000:00:10.4: USB 2.0 started, EHCI 1.00
usb usb3: default language 0x0409
usb usb3: udev 1, busnum 3, minor = 256
usb usb3: New USB device found, idVendor=1d6b, idProduct=0002
usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb3: Product: EHCI Host Controller
usb usb3: Manufacturer: Linux 2.6.34 ehci_hcd
usb usb3: SerialNumber: 0000:00:10.4
usb usb3: usb_probe_device
usb usb3: configuration #1 chosen from 1 choice
usb usb3: adding 3-0:1.0 (config #1, interface 0)
uhci_hcd 0000:00:10.0: port 1 portsc 008a,00
uhci_hcd 0000:00:10.0: port 2 portsc 008a,00
uhci_hcd 0000:00:10.1: port 1 portsc 008a,00
uhci_hcd 0000:00:10.1: port 2 portsc 008a,00
hub 3-0:1.0: usb_probe_interface
hub 3-0:1.0: usb_probe_interface - got id
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 6 ports detected
hub 3-0:1.0: standalone hub
hub 3-0:1.0: no power switching (usb 1.0)
hub 3-0:1.0: individual port over-current protection
hub 3-0:1.0: power on to power good time: 20ms
hub 3-0:1.0: local power source is good
hub 3-0:1.0: trying to enable port power on non-switchable hub
drivers/usb/core/inode.c: creating file '001'
ehci_hcd 0000:00:10.4: HS companion for 0000:00:10.0
ehci_hcd 0000:00:10.4: HS companion for 0000:00:10.1
uhci_hcd 0000:00:10.2: PCI INT C -> GSI 21 (level, low) -> IRQ 21
uhci_hcd 0000:00:10.2: UHCI Host Controller
drivers/usb/core/inode.c: creating file '004'
uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:10.2: detected 2 ports
uhci_hcd 0000:00:10.2: uhci_check_and_reset_hc: cmd = 0x0000
uhci_hcd 0000:00:10.2: Performing full reset
uhci_hcd 0000:00:10.2: supports USB remote wakeup
uhci_hcd 0000:00:10.2: irq 21, io base 0x0000e800
usb usb4: default language 0x0409
usb usb4: udev 1, busnum 4, minor = 384
usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb4: Product: UHCI Host Controller
usb usb4: Manufacturer: Linux 2.6.34 uhci_hcd
usb usb4: SerialNumber: 0000:00:10.2
usb usb4: usb_probe_device
usb usb4: configuration #1 chosen from 1 choice
usb usb4: adding 4-0:1.0 (config #1, interface 0)
hub 4-0:1.0: usb_probe_interface
hub 4-0:1.0: usb_probe_interface - got id
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
hub 4-0:1.0: standalone hub
hub 4-0:1.0: no power switching (usb 1.0)
hub 4-0:1.0: individual port over-current protection
hub 4-0:1.0: power on to power good time: 2ms
hub 4-0:1.0: local power source is good
hub 4-0:1.0: trying to enable port power on non-switchable hub
drivers/usb/core/inode.c: creating file '001'
ehci_hcd 0000:00:10.4: HS companion for 0000:00:10.2
hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0000
hub 2-0:1.0: state 7 ports 2 chg 0000 evt 0000
hub 3-0:1.0: state 7 ports 6 chg 0000 evt 0000
uhci_hcd 0000:00:10.2: port 1 portsc 008a,00
uhci_hcd 0000:00:10.2: port 2 portsc 008a,00
hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
EXT3-fs (hdc5): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
dracut: Remounting /dev/disk/by-label/\x2f with -o noatime,ro
EXT3-fs (hdc5): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
dracut: Mounted root filesystem /dev/hdc5
usb usb1: suspend_rh (auto-stop)
usb usb2: suspend_rh (auto-stop)
usb usb4: suspend_rh (auto-stop)
dracut: Loading SELinux policy
dracut: /sbin/load_policy: Can't load policy: No such device
dracut: Switching root
udev: starting version 145
Modular ISDN core version 1.1.21
NET: Registered protocol family 34
parport_pc 00:0a: reported by Plug and Play ACPI
parport0: PC-style at 0x378, irq 7 [PCSPP,EPP]
VIA Graphics Intergration Chipset framebuffer 2.4 initializing
ppdev: user-space parallel port driver
Winbond W6692 PCI driver Rev. 2.0
w6692 0000:03:0f.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
mISDN_w6692: found adapter Dynalink/AsusCom IS64PH at 0000:03:0f.0
w6692.1: Winbond W6692 version: V00
W6692 1 cards installed
viafb_init_dvi_size: DVI panel size undetected!
udev: renamed network interface eth1 to eth0
udev: renamed network interface eth0_rename to eth1
HDA Intel 0000:02:01.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
HDA Intel 0000:02:01.0: setting latency timer to 64
HDA Intel 0000:02:01.0: PCI: Disallowing DAC for device
EXT3-fs (hdc5): using internal journal
kjournald starting.  Commit interval 5 seconds
EXT3-fs (hdc1): using internal journal
EXT3-fs (hdc1): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
EXT3-fs (hdc7): using internal journal
EXT3-fs (hdc7): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
EXT3-fs (hdc8): using internal journal
EXT3-fs (hdc8): mounted filesystem with writeback data mode
kjournald starting.  Commit interval 5 seconds
EXT3-fs (hdc6): using internal journal
EXT3-fs (hdc6): mounted filesystem with writeback data mode
EXT4-fs (hdc10): mounted filesystem with ordered data mode
EXT4-fs (hdc11): mounted filesystem with ordered data mode
EXT4-fs (hdc12): mounted filesystem with ordered data mode
EXT4-fs (hdc13): mounted filesystem with ordered data mode
EXT4-fs (hdc14): mounted filesystem with ordered data mode
Adding 513036k swap on /dev/mapper/swap.  Priority:-1 extents:1
across:513036k
ip6_tables: (C) 2000-2006 Netfilter Core Team
eth0: link up, 100Mbps, full-duplex, lpa 0xC5E1
eth1: link up, 100Mbps, full-duplex, lpa 0x41E1

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-05-26 19:02 ` Randy Dunlap
  2010-05-29  4:29   ` Udo van den Heuvel
@ 2010-05-30  7:34   ` Udo van den Heuvel
  2010-05-30 18:51     ` Robert Hancock
  1 sibling, 1 reply; 12+ messages in thread
From: Udo van den Heuvel @ 2010-05-30  7:34 UTC (permalink / raw)
  Cc: linux-kernel

> Have you enabled ACPI in the BIOS and kernel config? AFAIK, HPET
> timers, need some backup timers, for HPET to be enabled.

ACPI is enabled. APM is disabled.

Epia LT BIOS is at 1.01 presumably. BIOS update to 1.03  fails as
vf-1.02.exe, presumably due to freedos, does not recognise the VIA board
and complains about it.

Also due to board swap last year it can be the case that HPET has so far
not worked at all on EPIA LT.

The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
chipset which supports HPET.

Can it be that the kernel lacks support for CX700 hpet?
Or is it a matter of getting the BIOS upgrade to work?

Udo

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-05-30  7:34   ` Udo van den Heuvel
@ 2010-05-30 18:51     ` Robert Hancock
       [not found]       ` <4C0324B8.8070304@xs4all.nl>
  0 siblings, 1 reply; 12+ messages in thread
From: Robert Hancock @ 2010-05-30 18:51 UTC (permalink / raw)
  To: Udo van den Heuvel; +Cc: linux-kernel

On 05/30/2010 01:34 AM, Udo van den Heuvel wrote:
>
>> Have you enabled ACPI in the BIOS and kernel config? AFAIK, HPET
>> timers, need some backup timers, for HPET to be enabled.
>
> ACPI is enabled. APM is disabled.
>
> Epia LT BIOS is at 1.01 presumably. BIOS update to 1.03  fails as
> vf-1.02.exe, presumably due to freedos, does not recognise the VIA board
> and complains about it.
>
> Also due to board swap last year it can be the case that HPET has so far
> not worked at all on EPIA LT.
>
> The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
> chipset which supports HPET.
>
> Can it be that the kernel lacks support for CX700 hpet?
> Or is it a matter of getting the BIOS upgrade to work?

Your current BIOS doesn't provide an HPET ACPI table, which is the way 
it's supposed to indicate support. The kernel only supports 
force-enabling HPET on VIA for VT8235 and VT8237.

^ permalink raw reply	[flat|nested] 12+ messages in thread

[parent not found: <4C0324B8.8070304@xs4all.nl>]

[parent not found: <AANLkTikuaPxA9Xnzc1bCJ5YHRlPZ1AcBSrYJ5lqryaMY@mail.gmail.com>]

* Re: hpet timers gone?
       [not found]         ` <AANLkTikuaPxA9Xnzc1bCJ5YHRlPZ1AcBSrYJ5lqryaMY@mail.gmail.com>
@ 2010-09-13 14:52           ` Udo van den Heuvel
  2010-09-13 15:30             ` Udo van den Heuvel
  2010-09-13 23:16             ` Robert Hancock
  0 siblings, 2 replies; 12+ messages in thread
From: Udo van den Heuvel @ 2010-09-13 14:52 UTC (permalink / raw)
  To: Robert Hancock, linux-kernel

On 2010-05-31 06:00, Robert Hancock wrote:
> On Sun, May 30, 2010 at 8:53 PM, Udo van den Heuvel <udovdh@xs4all.nl> wrote:
>> On 2010-05-30 20:51, Robert Hancock wrote:
>>> On 05/30/2010 01:34 AM, Udo van den Heuvel wrote:
>>>> The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
>>>> chipset which supports HPET.
>>>>
>>>> Can it be that the kernel lacks support for CX700 hpet?
>>>> Or is it a matter of getting the BIOS upgrade to work?
>>>
>>> Your current BIOS doesn't provide an HPET ACPI table, which is the way
>>> it's supposed to indicate support. The kernel only supports
>>> force-enabling HPET on VIA for VT8235 and VT8237.
>>
>> So yes, I should try the BIOS upgrade first?
> 
> If they did add an HPET table entry, it should help, yes..

Is there a workaround?
VIA was not so helpfull: the bios flash tool they have on the site does
not recognise the board as a VIA board.
Also they state the latest BIOS will not add HPET to ACPI table.

So what else can I do to enable HPET?

Kind regards,
Udo

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-09-13 14:52           ` Udo van den Heuvel
@ 2010-09-13 15:30             ` Udo van den Heuvel
  2010-09-13 16:05               ` Udo van den Heuvel
  2010-09-13 23:16             ` Robert Hancock
  1 sibling, 1 reply; 12+ messages in thread
From: Udo van den Heuvel @ 2010-09-13 15:30 UTC (permalink / raw)
  Cc: linux-kernel

On 2010-09-13 16:52, Udo van den Heuvel wrote:
> On 2010-05-31 06:00, Robert Hancock wrote:
>> If they did add an HPET table entry, it should help, yes..
> 
> Is there a workaround?
> VIA was not so helpfull: the bios flash tool they have on the site does
> not recognise the board as a VIA board.
> Also they state the latest BIOS will not add HPET to ACPI table.

Could I adapt the old patch for 8237 to force-enable HPET?

If so: I might need to find out in what ways the C700X2 and VT8237
differ w.r.t. HPET and/or id. Anyone here that could help?

Or should blindly enabling HPET (as in VT8237) help?

Udo

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-09-13 15:30             ` Udo van den Heuvel
@ 2010-09-13 16:05               ` Udo van den Heuvel
  0 siblings, 0 replies; 12+ messages in thread
From: Udo van den Heuvel @ 2010-09-13 16:05 UTC (permalink / raw)
  To: linux-kernel

[-- Attachment #1: Type: text/plain, Size: 181 bytes --]

On 2010-09-13 17:30, Udo van den Heuvel wrote:
> Or should blindly enabling HPET (as in VT8237) help?

The attached patch does indeed enable HPEt on VIA Epia LT.

Kind regards,
Udo

[-- Attachment #2: hpet-c700.patch --]
[-- Type: text/plain, Size: 435 bytes --]

--- a/arch/x86/kernel/quirks.c	2010-09-13 18:02:14.639710309 +0200
+++ b/arch/x86/kernel/quirks.c	2010-09-13 18:02:06.095280815 +0200
@@ -344,6 +344,8 @@
 			 vt8237_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
 			 vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700,
+			 vt8237_force_enable_hpet);
 
 static void ati_force_hpet_resume(void)
 {

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
  2010-09-13 14:52           ` Udo van den Heuvel
  2010-09-13 15:30             ` Udo van den Heuvel
@ 2010-09-13 23:16             ` Robert Hancock
  2010-09-14  5:15               ` patch: HPET force enable for CX700 / VIA Epia LT was: " Udo van den Heuvel
  1 sibling, 1 reply; 12+ messages in thread
From: Robert Hancock @ 2010-09-13 23:16 UTC (permalink / raw)
  To: Udo van den Heuvel; +Cc: linux-kernel

On Mon, Sep 13, 2010 at 8:52 AM, Udo van den Heuvel <udovdh@xs4all.nl> wrote:
> On 2010-05-31 06:00, Robert Hancock wrote:
>> On Sun, May 30, 2010 at 8:53 PM, Udo van den Heuvel <udovdh@xs4all.nl> wrote:
>>> On 2010-05-30 20:51, Robert Hancock wrote:
>>>> On 05/30/2010 01:34 AM, Udo van den Heuvel wrote:
>>>>> The board has VIA C7 CPU and VIA CX700M2 Unified Digital Media IGP
>>>>> chipset which supports HPET.
>>>>>
>>>>> Can it be that the kernel lacks support for CX700 hpet?
>>>>> Or is it a matter of getting the BIOS upgrade to work?
>>>>
>>>> Your current BIOS doesn't provide an HPET ACPI table, which is the way
>>>> it's supposed to indicate support. The kernel only supports
>>>> force-enabling HPET on VIA for VT8235 and VT8237.
>>>
>>> So yes, I should try the BIOS upgrade first?
>>
>> If they did add an HPET table entry, it should help, yes..
>
> Is there a workaround?
> VIA was not so helpfull: the bios flash tool they have on the site does
> not recognise the board as a VIA board.
> Also they state the latest BIOS will not add HPET to ACPI table.
>
> So what else can I do to enable HPET?

At this point, not much, unless you can track down the chipset
information that would allow us to implement force enabling HPET on
that chipset..

^ permalink raw reply	[flat|nested] 12+ messages in thread

* patch: HPET force enable for CX700 / VIA Epia LT  was: Re: hpet timers gone?
  2010-09-13 23:16             ` Robert Hancock
@ 2010-09-14  5:15               ` Udo van den Heuvel
  2010-09-15 14:37                 ` [tip:x86/quirks] x86: HPET force enable for CX700 / VIA Epia LT tip-bot for Udo van den Heuvel
  0 siblings, 1 reply; 12+ messages in thread
From: Udo van den Heuvel @ 2010-09-14  5:15 UTC (permalink / raw)
  To: Robert Hancock; +Cc: linux-kernel

[-- Attachment #1: Type: text/plain, Size: 915 bytes --]

On 2010-09-14 01:16, Robert Hancock wrote:
> On Mon, Sep 13, 2010 at 8:52 AM, Udo van den Heuvel <udovdh@xs4all.nl> wrote:
>> So what else can I do to enable HPET?
> 
> At this point, not much, unless you can track down the chipset
> information that would allow us to implement force enabling HPET on
> that chipset..

Signed-off-by: Udo van den Heuvel <udovdh@xs4all.nl>

--- a/arch/x86/kernel/quirks.c	2010-09-13 18:02:14.639710309 +0200
+++ b/arch/x86/kernel/quirks.c	2010-09-13 18:02:06.095280815 +0200
@@ -344,6 +344,8 @@
 			 vt8237_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
 			 vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700,
+			 vt8237_force_enable_hpet);

 static void ati_force_hpet_resume(void)
 {

Patch does make hpet appear on VIA Epia LT (CX700M2 chipset) with
hpet=force on kernel commandline.


Udo

[-- Attachment #2: hpet-c700.patch --]
[-- Type: text/plain, Size: 435 bytes --]

--- a/arch/x86/kernel/quirks.c	2010-09-13 18:02:14.639710309 +0200
+++ b/arch/x86/kernel/quirks.c	2010-09-13 18:02:06.095280815 +0200
@@ -344,6 +344,8 @@
 			 vt8237_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
 			 vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700,
+			 vt8237_force_enable_hpet);
 
 static void ati_force_hpet_resume(void)
 {

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [tip:x86/quirks] x86: HPET force enable for CX700 / VIA Epia LT
  2010-09-14  5:15               ` patch: HPET force enable for CX700 / VIA Epia LT was: " Udo van den Heuvel
@ 2010-09-15 14:37                 ` tip-bot for Udo van den Heuvel
  0 siblings, 0 replies; 12+ messages in thread
From: tip-bot for Udo van den Heuvel @ 2010-09-15 14:37 UTC (permalink / raw)
  To: linux-tip-commits; +Cc: linux-kernel, hpa, mingo, hancockrwd, udovdh, tglx

Commit-ID:  892df7f81c31ce7f85778aa78094e8d1f19b8413
Gitweb:     http://git.kernel.org/tip/892df7f81c31ce7f85778aa78094e8d1f19b8413
Author:     Udo van den Heuvel <udovdh@xs4all.nl>
AuthorDate: Tue, 14 Sep 2010 07:15:08 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Wed, 15 Sep 2010 16:27:04 +0200

x86: HPET force enable for CX700 / VIA Epia LT

Allow using HPET with the hpet=force command line option on VIA EPIA
CX700 systems.

Signed-off-by: Udo van den Heuvel <udovdh@xs4all.nl>
Cc: Robert Hancock <hancockrwd@gmail.com>
LKML-Reference:  <4C8F04DC.5060303@xs4all.nl>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/kernel/quirks.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 939b9e9..8bbe8c5 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -344,6 +344,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235,
 			 vt8237_force_enable_hpet);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237,
 			 vt8237_force_enable_hpet);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700,
+			 vt8237_force_enable_hpet);
 
 static void ati_force_hpet_resume(void)
 {

^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: hpet timers gone?
@ 2010-05-29 11:16 uwaysi.bin.kareem
  0 siblings, 0 replies; 12+ messages in thread
From: uwaysi.bin.kareem @ 2010-05-29 11:16 UTC (permalink / raw)
  To: linux-kernel

Have you enabled ACPI in the BIOS and kernel config? AFAIK, HPET timers, need some backup timers, for HPET to be enabled.

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2010-09-15 14:37 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-05-24 10:19 hpet timers gone? Udo van den Heuvel
2010-05-26 19:02 ` Randy Dunlap
2010-05-29  4:29   ` Udo van den Heuvel
2010-05-30  7:34   ` Udo van den Heuvel
2010-05-30 18:51     ` Robert Hancock
     [not found]       ` <4C0324B8.8070304@xs4all.nl>
     [not found]         ` <AANLkTikuaPxA9Xnzc1bCJ5YHRlPZ1AcBSrYJ5lqryaMY@mail.gmail.com>
2010-09-13 14:52           ` Udo van den Heuvel
2010-09-13 15:30             ` Udo van den Heuvel
2010-09-13 16:05               ` Udo van den Heuvel
2010-09-13 23:16             ` Robert Hancock
2010-09-14  5:15               ` patch: HPET force enable for CX700 / VIA Epia LT was: " Udo van den Heuvel
2010-09-15 14:37                 ` [tip:x86/quirks] x86: HPET force enable for CX700 / VIA Epia LT tip-bot for Udo van den Heuvel
  -- strict thread matches above, loose matches on Subject: below --
2010-05-29 11:16 hpet timers gone? uwaysi.bin.kareem

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