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    Subject[PATCH 1/2] Add Hypertransport capability defines.
    Date

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

    Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
    ---

    This patch is against 2.6.18-rc1-mm1

    arch/powerpc/sysdev/mpic.c | 2 +-
    include/linux/pci_regs.h | 21 +++++++++++++++++++++
    2 files changed, 22 insertions(+), 1 deletions(-)

    diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
    index 9961eda..9be8c49 100644
    --- a/arch/powerpc/sysdev/mpic.c
    +++ b/arch/powerpc/sysdev/mpic.c
    @@ -251,7 +251,7 @@ static void __init mpic_scan_ht_pic(stru
    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 05b893e..0ea629c 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.hypertranposrt.org
    + *
    + * The Hypertransport I/O Link Specification
    */

    #ifndef LINUX_PCI_REGS_H
    @@ -447,4 +452,20 @@ #define PCI_PWR_DATA_RAIL(x) (((x) >> 1
    #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 */
    --
    1.4.1.gac83a
    -
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