diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_eu.h | 16 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_eu_emit.c | 14 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_eu.h b/src/mesa/drivers/dri/i965/brw_eu.h index a6fcd832f7d..3a0100024cf 100644 --- a/src/mesa/drivers/dri/i965/brw_eu.h +++ b/src/mesa/drivers/dri/i965/brw_eu.h @@ -520,6 +520,20 @@ static INLINE struct brw_reg brw_acc_reg( void ) 0); } +static INLINE struct brw_reg brw_notification_1_reg(void) +{ + + return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE, + BRW_ARF_NOTIFICATION_COUNT, + 1, + BRW_REGISTER_TYPE_UD, + BRW_VERTICAL_STRIDE_0, + BRW_WIDTH_1, + BRW_HORIZONTAL_STRIDE_0, + BRW_SWIZZLE_XXXX, + WRITEMASK_X); +} + static INLINE struct brw_reg brw_flag_reg( void ) { @@ -919,6 +933,8 @@ void brw_land_fwd_jump(struct brw_compile *p, void brw_NOP(struct brw_compile *p); +void brw_WAIT(struct brw_compile *p); + /* Special case: there is never a destination, execution size will be * taken from src0: */ diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c index 34dfe10cb93..10e9ebc3b0e 100644 --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c @@ -906,6 +906,20 @@ void brw_CMP(struct brw_compile *p, } } +/* Issue 'wait' instruction for n1, host could program MMIO + to wake up thread. */ +void brw_WAIT (struct brw_compile *p) +{ + struct brw_instruction *insn = next_insn(p, BRW_OPCODE_WAIT); + struct brw_reg src = brw_notification_1_reg(); + + brw_set_dest(insn, src); + brw_set_src0(insn, src); + brw_set_src1(insn, brw_null_reg()); + insn->header.execution_size = 0; /* must */ + insn->header.predicate_control = 0; + insn->header.compression_control = 0; +} /*********************************************************************** |