[Intel-gfx] [PATCH 04/10] i965: setup system routine

[Ben Widawsky]

Upload the system routine as part of the invariant state if debugging.

Remove SIP setting if not debugging to make it more friendly for others
that may be debugging shaders or media kernels.

v2: removed comment per Chris

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 src/mesa/drivers/dri/i965/brw_misc_state.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index bc8ef78..5563ade 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -652,10 +652,14 @@ static void upload_invarient_state( struct brw_context *brw )
       }
    }
 
-   BEGIN_BATCH(2);
-   OUT_BATCH(CMD_STATE_SIP << 16 | (2 - 2));
-   OUT_BATCH(0);
-   ADVANCE_BATCH();
+   /* The system routine must be set after a change to Instruction base */
+   if (brw->wm.debugging)  {
+      assert(brw->wm.sip_offset != 0);
+      BEGIN_BATCH(2);
+      OUT_BATCH(CMD_STATE_SIP << 16 | (2 - 2));
+      OUT_BATCH(brw->wm.sip_offset);
+      ADVANCE_BATCH();
+   }
 
    BEGIN_BATCH(1);
    OUT_BATCH(brw->CMD_VF_STATISTICS << 16 |
-- 
1.7.6