[Mesa-dev] [PATCH v2 05/11] i965/inst: Add gateway_notify and gateway_subfuncid fields

[Jordan Justen]

These fields will be used when emitting a send for the barrier function.

Reference: IVB PRM Volume 4, Part 2, Section 1.1.1 Message Descriptor

v2:
 * notify => gateway_notify (Ken)
 * define bits for gen4-gen6 (bwidawsk, Ken)

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Chris Forbes <chrisf at ijw.co.nz>
Reviewed-by: Ben Widawsky <ben at bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/brw_inst.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_inst.h b/src/mesa/drivers/dri/i965/brw_inst.h
index e347c51..7a8c210 100644
--- a/src/mesa/drivers/dri/i965/brw_inst.h
+++ b/src/mesa/drivers/dri/i965/brw_inst.h
@@ -322,6 +322,9 @@ FJ(gen4_jump_count, 111,  96, devinfo->gen < 6)
 FC(gen4_pop_count,  115, 112, devinfo->gen < 6)
 /** @} */
 
+/* Message descriptor bits */
+#define MD(x) ((x) + 96)
+
 /**
  * Fields for SEND messages:
  *  @{
@@ -347,6 +350,7 @@ FF(header_present,
    /* 6:   */ 115, 115,
    /* 7:   */ 115, 115,
    /* 8:   */ 115, 115)
+F(gateway_notify, MD(16), MD(15))
 FF(function_control,
    /* 4:   */ 111,  96,
    /* 4.5: */ 111,  96,
@@ -354,6 +358,13 @@ FF(function_control,
    /* 6:   */ 114,  96,
    /* 7:   */ 114,  96,
    /* 8:   */ 114,  96)
+FF(gateway_subfuncid,
+   /* 4:   */ MD(1), MD(0),
+   /* 4.5: */ MD(1), MD(0),
+   /* 5:   */ MD(1), MD(0), /* 2:0, but bit 2 is reserved MBZ */
+   /* 6:   */ MD(2), MD(0),
+   /* 7:   */ MD(2), MD(0),
+   /* 8:   */ MD(2), MD(0))
 FF(sfid,
    /* 4:   */ 123, 120, /* called msg_target */
    /* 4.5  */ 123, 120,
@@ -364,9 +375,6 @@ FF(sfid,
 FC(base_mrf,   27,  24, devinfo->gen < 6);
 /** @} */
 
-/* Message descriptor bits */
-#define MD(x) (x + 96)
-
 /**
  * URB message function control bits:
  *  @{
-- 
2.1.4