int exopc;
long exceptdet0;
int exceptdet1;
+ int cbrstate;
+ int cbrexecstatus;
};
/*
unsigned char reserved2: 2;
unsigned char istatus: 2;
unsigned char isubstatus:4;
- unsigned char reserved3: 2;
+ unsigned char reserved3: 1;
+ unsigned char tlb_fault_color: 1;
/* DW 1 */
unsigned long idef4; /* 42 bits: TRi1, BufSize */
/* DW 2-6 */
#define CBE_CAUSE_HA_RESPONSE_FATAL (1 << 13)
#define CBE_CAUSE_HA_RESPONSE_NON_FATAL (1 << 14)
#define CBE_CAUSE_ADDRESS_SPACE_DECODE_ERROR (1 << 15)
-#define CBE_CAUSE_RESPONSE_DATA_ERROR (1 << 16)
-#define CBE_CAUSE_PROTOCOL_STATE_DATA_ERROR (1 << 17)
+#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)
+
+/* CBE cbrexecstatus bits */
+#define CBR_EXS_ABORT_OCC_BIT 0
+#define CBR_EXS_INT_OCC_BIT 1
+#define CBR_EXS_PENDING_BIT 2
+#define CBR_EXS_QUEUED_BIT 3
+#define CBR_EXS_TLB_INVAL_BIT 4
+#define CBR_EXS_EXCEPTION_BIT 5
+
+#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_EXCEPTION (1 << CBR_EXS_EXCEPTION_BIT)
/*
* Exceptions are retried for the following cases. If any OTHER bits are set
* in ecause, the exception is not retryable.
*/
-#define EXCEPTION_RETRY_BITS (CBE_CAUSE_RESPONSE_DATA_ERROR | \
- CBE_CAUSE_RA_REQUEST_TIMEOUT | \
+#define EXCEPTION_RETRY_BITS (CBE_CAUSE_EXECUTION_HW_ERROR | \
CBE_CAUSE_TLBHW_ERROR | \
- CBE_CAUSE_HA_REQUEST_TIMEOUT)
+ CBE_CAUSE_RA_REQUEST_TIMEOUT | \
+ CBE_CAUSE_RA_RESPONSE_NON_FATAL | \
+ CBE_CAUSE_HA_RESPONSE_NON_FATAL | \
+ CBE_CAUSE_RA_RESPONSE_DATA_ERROR | \
+ CBE_CAUSE_HA_RESPONSE_DATA_ERROR \
+ )
/* Message queue head structure */
union gru_mesqhead {
* - nelem and stride are in elements
* - tri0/tri1 is in bytes for the beginning of the data segment.
*/
+static inline void gru_vload_phys(void *cb, unsigned long gpa,
+ unsigned int tri0, int iaa, unsigned long hints)
+{
+ struct gru_instruction *ins = (struct gru_instruction *)cb;
+
+ ins->baddr0 = (long)gpa | ((unsigned long)iaa << 62);
+ ins->nelem = 1;
+ ins->tri0 = tri0;
+ ins->op1_stride = 1;
+ gru_start_instruction(ins, __opword(OP_VLOAD, 0, XTYPE_DW, iaa, 0,
+ CB_IMA(hints)));
+}
+
static inline void gru_vload(void *cb, unsigned long mem_addr,
unsigned int tri0, unsigned char xtype, unsigned long nelem,
unsigned long stride, unsigned long hints)
return cbs->isubstatus;
}
-/* Check the status of a CB. If the CB is in UPM mode, call the
- * OS to handle the UPM status.
- * Returns the CB status field value (0 for normal completion)
+/*
+ * User interface to check an instruction status. UPM and exceptions
+ * are handled automatically. However, this function does NOT wait
+ * for an active instruction to complete.
+ *
*/
static inline int gru_check_status(void *cb)
{
int ret;
ret = cbs->istatus;
- if (ret == CBS_CALL_OS)
+ if (ret != CBS_ACTIVE)
ret = gru_check_status_proc(cb);
return ret;
}
-/* Wait for CB to complete.
- * Returns the CB status field value (0 for normal completion)
+/*
+ * User interface (via inline function) to wait for an instruction
+ * to complete. Completion status (IDLE or EXCEPTION is returned
+ * to the user. Exception due to hardware errors are automatically
+ * retried before returning an exception.
+ *
*/
static inline int gru_wait(void *cb)
{
- struct gru_control_block_status *cbs = (void *)cb;
- int ret = cbs->istatus;
-
- if (ret != CBS_IDLE)
- ret = gru_wait_proc(cb);
- return ret;
+ return gru_wait_proc(cb);
}
-/* Wait for CB to complete. Aborts program if error. (Note: error does NOT
+/*
+ * Wait for CB to complete. Aborts program if error. (Note: error does NOT
* mean TLB mis - only fatal errors such as memory parity error or user
* bugs will cause termination.
*/
static inline void gru_wait_abort(void *cb)
{
- struct gru_control_block_status *cbs = (void *)cb;
-
- if (cbs->istatus != CBS_IDLE)
- gru_wait_abort_proc(cb);
+ gru_wait_abort_proc(cb);
}