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    Subject[Patch 24/29] GRU - Update GRU structures to match latest hardware spec
    From: Jack Steiner <steiner@sgi.com>

    Add a few new definitions for chipset MMR field names.
    This matches rev 0.7 of the hardware spec.

    Signed-off-by: Jack Steiner <steiner@sgi.com>


    ---
    drivers/misc/sgi-gru/gru_instructions.h | 5 ++++-
    drivers/misc/sgi-gru/gruhandles.h | 11 +++++++++++
    2 files changed, 15 insertions(+), 1 deletion(-)

    Index: linux/drivers/misc/sgi-gru/gru_instructions.h
    ===================================================================
    --- linux.orig/drivers/misc/sgi-gru/gru_instructions.h 2009-11-20 09:32:34.000000000 -0600
    +++ linux/drivers/misc/sgi-gru/gru_instructions.h 2009-11-20 09:32:37.000000000 -0600
    @@ -265,6 +265,7 @@ struct gru_instruction {
    #define CBE_CAUSE_PROTOCOL_STATE_DATA_ERROR (1 << 16)
    #define CBE_CAUSE_RA_RESPONSE_DATA_ERROR (1 << 17)
    #define CBE_CAUSE_HA_RESPONSE_DATA_ERROR (1 << 18)
    +#define CBE_CAUSE_FORCED_ERROR (1 << 19)

    /* CBE cbrexecstatus bits */
    #define CBR_EXS_ABORT_OCC_BIT 0
    @@ -273,13 +274,15 @@ struct gru_instruction {
    #define CBR_EXS_QUEUED_BIT 3
    #define CBR_EXS_TLB_INVAL_BIT 4
    #define CBR_EXS_EXCEPTION_BIT 5
    +#define CBR_EXS_CB_INT_PENDING_BIT 6

    #define CBR_EXS_ABORT_OCC (1 << CBR_EXS_ABORT_OCC_BIT)
    #define CBR_EXS_INT_OCC (1 << CBR_EXS_INT_OCC_BIT)
    #define CBR_EXS_PENDING (1 << CBR_EXS_PENDING_BIT)
    #define CBR_EXS_QUEUED (1 << CBR_EXS_QUEUED_BIT)
    -#define CBR_TLB_INVAL (1 << CBR_EXS_TLB_INVAL_BIT)
    +#define CBR_EXS_TLB_INVAL (1 << CBR_EXS_TLB_INVAL_BIT)
    #define CBR_EXS_EXCEPTION (1 << CBR_EXS_EXCEPTION_BIT)
    +#define CBR_EXS_CB_INT_PENDING (1 << CBR_EXS_CB_INT_PENDING_BIT)

    /*
    * Exceptions are retried for the following cases. If any OTHER bits are set
    Index: linux/drivers/misc/sgi-gru/gruhandles.h
    ===================================================================
    --- linux.orig/drivers/misc/sgi-gru/gruhandles.h 2009-11-20 09:32:35.000000000 -0600
    +++ linux/drivers/misc/sgi-gru/gruhandles.h 2009-11-20 09:32:37.000000000 -0600
    @@ -252,6 +252,17 @@ enum gru_tgh_state {
    TGHSTATE_RESTART_CTX,
    };

    +enum gru_tgh_cause {
    + TGHCAUSE_RR_ECC,
    + TGHCAUSE_TLB_ECC,
    + TGHCAUSE_LRU_ECC,
    + TGHCAUSE_PS_ECC,
    + TGHCAUSE_MUL_ERR,
    + TGHCAUSE_DATA_ERR,
    + TGHCAUSE_SW_FORCE
    +};
    +
    +
    /*
    * TFH - TLB Global Handle
    * Used for TLB dropins into the GRU TLB.


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