[PATCH] Add Hypertransport capability defines

e78d0169 · Eric W. Biederman <[email protected]> · 2006-10-04 02:16:54 -07:00

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

[[email protected]: fix typo]
Signed-off-by: Eric W. Biederman <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Commit: e78d01693be38bf93dd6bb49b86e143da450de86
Parents: cd1182f5

Changes

2 files changed · +22 −1

File	Status	Add	Del	Content
arch/powerpc/sysdev/mpic.c	modified	+1	−1	View file
include/linux/pci_regs.h	modified	+21	−0	View file

arch/powerpc/sysdev/mpic.c

View file

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 723972b..3ee03a9 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -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

View file

diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index 7d0e26c..c312a12 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -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 */