Mesa (10.1): i965: Create a hardware context before initializing state module.

[Ian Romanick]

Module: Mesa
Branch: 10.1
Commit: 7cb4dea765b5b1fe8f14197084e2ccc864d525dd
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7cb4dea765b5b1fe8f14197084e2ccc864d525dd

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Wed Feb 19 17:20:11 2014 -0800

i965: Create a hardware context before initializing state module.

brw_init_state() calls brw_upload_initial_gpu_state().  If hardware
contexts are enabled (brw->hw_ctx != NULL), this will upload some
initial invariant state for the GPU.  Without hardware contexts, we
rely on this state being uploaded via atoms that subscribe to the
BRW_NEW_CONTEXT bit.

Commit 46d3c2bf4ddd227193b98861f1e632498fe547d8 accidentally moved
the call to brw_init_state() before creating a hardware context.
This meant brw_upload_initial_gpu_state would always early return.
Except on Gen6+, we stopped uploading the initial GPU state via
state atoms, so it never happened.

Fixes a regression since 46d3c2bf4ddd227193b98861f1e632498fe547d8.

Cc: "10.0 10.1" <mesa-stable at lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Eric Anholt <eric at anholt.net>
(cherry picked from commit 3663bbe773187dee341556ef29e58b1143ef2f5c)

---

 src/mesa/drivers/dri/i965/brw_context.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index d9d1ae5..d5dccaf 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -682,12 +682,6 @@ brwCreateContext(gl_api api,
 
    intel_batchbuffer_init(brw);
 
-   brw_init_state(brw);
-
-   intelInitExtensions(ctx);
-
-   intel_fbo_init(brw);
-
    if (brw->gen >= 6) {
       /* Create a new hardware context.  Using a hardware context means that
        * our GPU state will be saved/restored on context switch, allowing us
@@ -705,6 +699,12 @@ brwCreateContext(gl_api api,
       }
    }
 
+   brw_init_state(brw);
+
+   intelInitExtensions(ctx);
+
+   intel_fbo_init(brw);
+
    brw_init_surface_formats(brw);
 
    if (brw->is_g4x || brw->gen >= 5) {