ia64/xen-unstable

view xen/include/asm-x86/hpet.h @ 6538:84ee014ebd41

Merge xen-vtx-unstable.hg
author adsharma@los-vmm.sc.intel.com
date Wed Aug 17 12:34:38 2005 -0800 (2005-08-17)
parents 23979fb12c49 f294acb25858
children 99914b54f7bf
line source
1 #ifndef __X86_HPET_H__
2 #define __X86_HPET_H__
4 /*
5 * Documentation on HPET can be found at:
6 * http://www.intel.com/ial/home/sp/pcmmspec.htm
7 * ftp://download.intel.com/ial/home/sp/mmts098.pdf
8 */
10 #define HPET_MMAP_SIZE 1024
12 #define HPET_ID 0x000
13 #define HPET_PERIOD 0x004
14 #define HPET_CFG 0x010
15 #define HPET_STATUS 0x020
16 #define HPET_COUNTER 0x0f0
17 #define HPET_T0_CFG 0x100
18 #define HPET_T0_CMP 0x108
19 #define HPET_T0_ROUTE 0x110
20 #define HPET_T1_CFG 0x120
21 #define HPET_T1_CMP 0x128
22 #define HPET_T1_ROUTE 0x130
23 #define HPET_T2_CFG 0x140
24 #define HPET_T2_CMP 0x148
25 #define HPET_T2_ROUTE 0x150
27 #define HPET_ID_VENDOR 0xffff0000
28 #define HPET_ID_LEGSUP 0x00008000
29 #define HPET_ID_NUMBER 0x00001f00
30 #define HPET_ID_REV 0x000000ff
31 #define HPET_ID_NUMBER_SHIFT 8
33 #define HPET_ID_VENDOR_SHIFT 16
34 #define HPET_ID_VENDOR_8086 0x8086
36 #define HPET_CFG_ENABLE 0x001
37 #define HPET_CFG_LEGACY 0x002
38 #define HPET_LEGACY_8254 2
39 #define HPET_LEGACY_RTC 8
41 #define HPET_TN_ENABLE 0x004
42 #define HPET_TN_PERIODIC 0x008
43 #define HPET_TN_PERIODIC_CAP 0x010
44 #define HPET_TN_SETVAL 0x040
45 #define HPET_TN_32BIT 0x100
47 #define hpet_read32(x) \
48 (*(volatile u32 *)(fix_to_virt(FIX_HPET_BASE) + (x)))
49 #define hpet_write32(y,x) \
50 (*(volatile u32 *)(fix_to_virt(FIX_HPET_BASE) + (x)) = (y))
52 #endif /* __X86_HPET_H__ */