[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: 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>

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 723972b..3ee03a9 100644 (file)
--- 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;
                }
        }

diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index 7d0e26c..c312a12 100644 (file)
--- 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 */