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

arch/powerpc/sysdev/mpic.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

		}

	}

include/linux/pci_regs.h

+21 −0
Original line number Diff line number Diff line
@@ -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 */