[Mesa-dev] [PATCH 05/10] i965: emit breakpoints

[Ben Widawsky]

Provide a function to allow emitting breakpoints in the instruction
oword. Use breakpoints when debugging.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 src/mesa/drivers/dri/i965/brw_eu.c |    6 ++++++
 src/mesa/drivers/dri/i965/brw_eu.h |    1 +
 src/mesa/drivers/dri/i965/brw_wm.c |    3 +++
 3 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_eu.c b/src/mesa/drivers/dri/i965/brw_eu.c
index c1f2520..1af232c 100644
--- a/src/mesa/drivers/dri/i965/brw_eu.c
+++ b/src/mesa/drivers/dri/i965/brw_eu.c
@@ -150,6 +150,12 @@ void brw_set_acc_write_control(struct brw_compile *p, GLuint value)
       p->current->header.acc_wr_control = value;
 }
 
+void brw_set_breakpoint(struct brw_compile *p)
+{
+   if (p->brw->intel.gen >= 6)
+      p->current->header.debug_control = 1;
+}
+
 void brw_push_insn_state( struct brw_compile *p )
 {
    assert(p->current != &p->stack[BRW_EU_MAX_INSN_STACK-1]);
diff --git a/src/mesa/drivers/dri/i965/brw_eu.h b/src/mesa/drivers/dri/i965/brw_eu.h
index 72d50ea..ec7019f 100644
--- a/src/mesa/drivers/dri/i965/brw_eu.h
+++ b/src/mesa/drivers/dri/i965/brw_eu.h
@@ -793,6 +793,7 @@ void brw_set_predicate_control( struct brw_compile *p, GLuint pc );
 void brw_set_predicate_inverse(struct brw_compile *p, bool predicate_inverse);
 void brw_set_conditionalmod( struct brw_compile *p, GLuint conditional );
 void brw_set_acc_write_control(struct brw_compile *p, GLuint value);
+void brw_set_breakpoint( struct brw_compile *p );
 
 void brw_init_compile(struct brw_context *, struct brw_compile *p,
 		      void *mem_ctx);
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index b97542f..459e33f 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -229,6 +229,9 @@ bool do_wm_prog(struct brw_context *brw,
 
    brw_init_compile(brw, &c->func, c);
 
+   if (brw->wm.debugging)
+      brw_set_breakpoint(&c->func);
+
    if (prog && prog->FragmentProgram) {
       if (!brw_wm_fs_emit(brw, c, prog))
 	 return false;
-- 
1.7.6