Commit e78d0169 authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Linus Torvalds
Browse files

[PATCH] Add Hypertransport capability defines



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

[akpm@osdl.org: fix typo]
Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
Acked-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cd1182f5
......@@ -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);
if (id == PCI_CAP_ID_HT) {
id = readb(devbase + pos + 3);
if (id == 0x80)
if (id == HT_CAPTYPE_IRQ)
break;
}
}
......
......@@ -12,6 +12,11 @@
* PCI Local Bus Specification
* PCI to PCI Bridge Specification
* 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
......@@ -463,4 +468,20 @@
#define PCI_PWR_CAP 12 /* Capability */
#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 */
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