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[PATCH] Add Hypertransport capability defines

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This adds defines for the hypertransport capability subtypes and starts
using them a little.

[akpm@osdl.org: fix typo]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman 2006-10-04 02:16:54 -07:00 committed by Linus Torvalds
parent cd1182f56a
commit e78d01693b
2 changed files with 22 additions and 1 deletions
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2
arch/powerpc/sysdev/mpic.c
View file

@ -341,7 +341,7 @@ static void __init mpic_scan_ht_pic(struct mpic *mpic, u8 __iomem *devbase,
u8 id = readb(devbase + pos + PCI_CAP_LIST_ID); u8 id = readb(devbase + pos + PCI_CAP_LIST_ID);
if (id == PCI_CAP_ID_HT) { if (id == PCI_CAP_ID_HT) {
id = readb(devbase + pos + 3); id = readb(devbase + pos + 3);
if (id == 0x80) if (id == HT_CAPTYPE_IRQ)
break; break;
} }
} }

21
include/linux/pci_regs.h
View file

@ -12,6 +12,11 @@
* PCI Local Bus Specification * PCI Local Bus Specification
* PCI to PCI Bridge Specification * PCI to PCI Bridge Specification
* PCI System Design Guide * PCI System Design Guide
*
* For hypertransport information, please consult the following manuals
* from http://www.hypertransport.org
*
* The Hypertransport I/O Link Specification
*/ */
#ifndef LINUX_PCI_REGS_H #ifndef LINUX_PCI_REGS_H
@ -463,4 +468,20 @@
#define PCI_PWR_CAP 12 /* Capability */ #define PCI_PWR_CAP 12 /* Capability */
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */ #define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
/* Hypertransport sub capability types */
#define HT_CAPTYPE_SLAVE 0x00 /* Slave/Primary link configuration */
#define HT_CAPTYPE_HOST 0x20 /* Host/Secondary link configuration */
#define HT_CAPTYPE_IRQ 0x80 /* IRQ Configuration */
#define HT_CAPTYPE_REMAPPING_40 0xA0 /* 40 bit address remapping */
#define HT_CAPTYPE_REMAPPING_64 0xA2 /* 64 bit address remapping */
#define HT_CAPTYPE_UNITID_CLUMP 0x90 /* Unit ID clumping */
#define HT_CAPTYPE_EXTCONF 0x98 /* Extended Configuration Space Access */
#define HT_CAPTYPE_MSI_MAPPING 0xA8 /* MSI Mapping Capability */
#define HT_CAPTYPE_DIRECT_ROUTE 0xB0 /* Direct routing configuration */
#define HT_CAPTYPE_VCSET 0xB8 /* Virtual Channel configuration */
#define HT_CAPTYPE_ERROR_RETRY 0xC0 /* Retry on error configuration */
#define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 hypertransport configuration */
#define HT_CAPTYPE_PM 0xE0 /* Hypertransport powermanagement configuration */
#endif /* LINUX_PCI_REGS_H */ #endif /* LINUX_PCI_REGS_H */