i965g: make the winsys responsible for all buffer->offset handling

The winsys now inserts the presumed offset into referring buffers from
inside of bo_emit_reloc().  Remove the many locally coded places where
this was happening in the driver and eliminate the worry of getting it
wrong.

No longer need to expose offset values to the driver at all, so no need
to worry about what to do in the driver when they change.  Just use
zero values wherever we had offsets previously -- the relocations will
fix it all up for us.

12 files changed, 29 insertions, 30 deletions

diff --git a/src/gallium/drivers/i965/brw_batchbuffer.c b/src/gallium/drivers/i965/brw_batchbuffer.c
index 76a7d2d2af..a55be6faab 100644
--- a/src/gallium/drivers/i965/brw_batchbuffer.c
+++ b/src/gallium/drivers/i965/brw_batchbuffer.c
@@ -115,7 +115,7 @@ _brw_batchbuffer_flush(struct brw_batchbuffer *batch,
 		   file, line, used);
 
    if (ALWAYS_EMIT_MI_FLUSH) {
-      *(GLuint *) (batch->ptr) = ((MI_FLUSH << 16) | BRW_FLUSH_STATE_CACHE);
+      *(GLuint *) (batch->ptr) = MI_FLUSH | BRW_FLUSH_STATE_CACHE;
       batch->ptr += 4;
       used = batch->ptr - batch->map;
    }
@@ -192,12 +192,11 @@ brw_batchbuffer_emit_reloc(struct brw_batchbuffer *batch,
    if (ret != 0)
       return ret;
 
-   /*
-    * Using the old buffer offset, write in what the right data would be, in case
-    * the buffer doesn't move and we can short-circuit the relocation processing
-    * in the kernel
+   /* bo_emit_reloc was resposible for writing a zero into the
+    * batchbuffer if necessary.  Just need to update our pointer.
     */
-   brw_batchbuffer_emit_dword (batch, buffer->offset[0] + delta);
+   batch->ptr += 4;
+
    return 0;
 }
 
diff --git a/src/gallium/drivers/i965/brw_cc.c b/src/gallium/drivers/i965/brw_cc.c
index ba16fc4f6b..78d83929e0 100644
--- a/src/gallium/drivers/i965/brw_cc.c
+++ b/src/gallium/drivers/i965/brw_cc.c
@@ -142,7 +142,7 @@ cc_unit_create_from_key(struct brw_context *brw,
    cc.cc3 = key->cc3;
 
    /* CACHE_NEW_CC_VP */
-   cc.cc4.cc_viewport_state_offset = *(brw->cc.vp_bo->offset) >> 5; /* reloc */
+   cc.cc4.cc_viewport_state_offset = 0;
 
    cc.cc5 = key->cc5;
    cc.cc6 = key->cc6;
diff --git a/src/gallium/drivers/i965/brw_clip_state.c b/src/gallium/drivers/i965/brw_clip_state.c
index d4e3c43c61..157e6edf19 100644
--- a/src/gallium/drivers/i965/brw_clip_state.c
+++ b/src/gallium/drivers/i965/brw_clip_state.c
@@ -84,7 +84,7 @@ clip_unit_create_from_key(struct brw_context *brw,
 
    clip.thread0.grf_reg_count = align(key->total_grf, 16) / 16 - 1;
    /* reloc */
-   clip.thread0.kernel_start_pointer = *(brw->clip.prog_bo->offset) >> 6;
+   clip.thread0.kernel_start_pointer = 0;
 
    clip.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
    clip.thread1.single_program_flow = 1;
diff --git a/src/gallium/drivers/i965/brw_gs_state.c b/src/gallium/drivers/i965/brw_gs_state.c
index 18a66da538..36a99fd0e9 100644
--- a/src/gallium/drivers/i965/brw_gs_state.c
+++ b/src/gallium/drivers/i965/brw_gs_state.c
@@ -80,8 +80,8 @@ gs_unit_create_from_key(struct brw_context *brw,
    memset(&gs, 0, sizeof(gs));
 
    gs.thread0.grf_reg_count = align(key->total_grf, 16) / 16 - 1;
-   if (key->prog_active) /* reloc */
-      gs.thread0.kernel_start_pointer = brw->gs.prog_bo->offset[0] >> 6;
+   /* reloc */
+   gs.thread0.kernel_start_pointer = 0;
 
    gs.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
    gs.thread1.single_program_flow = 1;
diff --git a/src/gallium/drivers/i965/brw_screen_texture.c b/src/gallium/drivers/i965/brw_screen_texture.c
index 355abf0b89..8e684aa076 100644
--- a/src/gallium/drivers/i965/brw_screen_texture.c
+++ b/src/gallium/drivers/i965/brw_screen_texture.c
@@ -211,8 +211,10 @@ static struct pipe_texture *brw_texture_create( struct pipe_screen *screen,
        /* && bscreen->use_texture_tiling */
        /* && bscreen->kernel_exec_fencing */) 
    {
-      if (bscreen->chipset.is_965 &&
-	  pf_is_depth_or_stencil(templ->format))
+      if (1)
+         tex->tiling = BRW_TILING_NONE;
+      else if (bscreen->chipset.is_965 &&
+               pf_is_depth_or_stencil(templ->format))
 	 tex->tiling = BRW_TILING_Y;
       else
 	 tex->tiling = BRW_TILING_X;
@@ -256,7 +258,7 @@ static struct pipe_texture *brw_texture_create( struct pipe_screen *screen,
 
    /* XXX: what happens when tex->bo->offset changes???
     */
-   tex->ss.ss1.base_addr = tex->bo->offset[0]; /* reloc */
+   tex->ss.ss1.base_addr = 0; /* reloc */
    tex->ss.ss2.mip_count = tex->base.last_level;
    tex->ss.ss2.width = tex->base.width[0] - 1;
    tex->ss.ss2.height = tex->base.height[0] - 1;
diff --git a/src/gallium/drivers/i965/brw_sf_state.c b/src/gallium/drivers/i965/brw_sf_state.c
index bd8fc65b9e..689483b4bc 100644
--- a/src/gallium/drivers/i965/brw_sf_state.c
+++ b/src/gallium/drivers/i965/brw_sf_state.c
@@ -142,7 +142,8 @@ sf_unit_create_from_key(struct brw_context *brw, struct brw_sf_unit_key *key,
    memset(&sf, 0, sizeof(sf));
 
    sf.thread0.grf_reg_count = align(key->total_grf, 16) / 16 - 1;
-   sf.thread0.kernel_start_pointer = brw->sf.prog_bo->offset[0] >> 6; /* reloc */
+   /* reloc */
+   sf.thread0.kernel_start_pointer = 0;
 
    sf.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
 
@@ -175,7 +176,8 @@ sf_unit_create_from_key(struct brw_context *brw, struct brw_sf_unit_key *key,
       sf.thread4.stats_enable = 1;
 
    /* CACHE_NEW_SF_VP */
-   sf.sf5.sf_viewport_state_offset = brw->sf.vp_bo->offset[0] >> 5; /* reloc */
+   /* reloc */
+   sf.sf5.sf_viewport_state_offset = 0;
 
    sf.sf5.viewport_transform = 1;
 
diff --git a/src/gallium/drivers/i965/brw_vs_state.c b/src/gallium/drivers/i965/brw_vs_state.c
index 22a4d7f01b..a5b30eba47 100644
--- a/src/gallium/drivers/i965/brw_vs_state.c
+++ b/src/gallium/drivers/i965/brw_vs_state.c
@@ -89,7 +89,7 @@ vs_unit_create_from_key(struct brw_context *brw,
 
    memset(&vs, 0, sizeof(vs));
 
-   vs.thread0.kernel_start_pointer = brw->vs.prog_bo->offset[0] >> 6; /* reloc */
+   vs.thread0.kernel_start_pointer = 0; /* reloc */
    vs.thread0.grf_reg_count = align(key->total_grf, 16) / 16 - 1;
    vs.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
    /* Choosing multiple program flow means that we may get 2-vertex threads,
diff --git a/src/gallium/drivers/i965/brw_winsys.h b/src/gallium/drivers/i965/brw_winsys.h
index e041b0acaf..f4a1e9d8ed 100644
--- a/src/gallium/drivers/i965/brw_winsys.h
+++ b/src/gallium/drivers/i965/brw_winsys.h
@@ -44,7 +44,6 @@ struct brw_winsys_screen;
 struct brw_winsys_buffer {
    struct pipe_reference reference;
    struct brw_winsys_screen *sws;
-   unsigned *offset;
    unsigned size;
 };
 
diff --git a/src/gallium/drivers/i965/brw_wm_sampler_state.c b/src/gallium/drivers/i965/brw_wm_sampler_state.c
index 2861aa979f..174836b39d 100644
--- a/src/gallium/drivers/i965/brw_wm_sampler_state.c
+++ b/src/gallium/drivers/i965/brw_wm_sampler_state.c
@@ -87,7 +87,7 @@ brw_wm_sampler_populate_key(struct brw_context *brw,
 
       entry->ss0 = sampler->ss0;
       entry->ss1 = sampler->ss1;
-      entry->ss2.default_color_pointer = brw->wm.sdc_bo[i]->offset[0] >> 5; /* reloc */
+      entry->ss2.default_color_pointer = 0; /* reloc */
       entry->ss3 = sampler->ss3;
 
       /* Cube-maps on 965 and later must use the same wrap mode for all 3
diff --git a/src/gallium/drivers/i965/brw_wm_state.c b/src/gallium/drivers/i965/brw_wm_state.c
index 86dc10540d..56789ce7a4 100644
--- a/src/gallium/drivers/i965/brw_wm_state.c
+++ b/src/gallium/drivers/i965/brw_wm_state.c
@@ -149,7 +149,7 @@ wm_unit_create_from_key(struct brw_context *brw, struct brw_wm_unit_key *key,
    memset(&wm, 0, sizeof(wm));
 
    wm.thread0.grf_reg_count = align(key->total_grf, 16) / 16 - 1;
-   wm.thread0.kernel_start_pointer = brw->wm.prog_bo->offset[0] >> 6; /* reloc */
+   wm.thread0.kernel_start_pointer = 0; /* reloc */
    wm.thread1.depth_coef_urb_read_offset = 1;
    wm.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
 
@@ -159,8 +159,7 @@ wm_unit_create_from_key(struct brw_context *brw, struct brw_wm_unit_key *key,
       wm.thread1.binding_table_entry_count = key->nr_surfaces;
 
    if (key->total_scratch != 0) {
-      wm.thread2.scratch_space_base_pointer =
-	 brw->wm.scratch_bo->offset[0] >> 10; /* reloc */
+      wm.thread2.scratch_space_base_pointer = 0; /* reloc */
       wm.thread2.per_thread_scratch_space = key->total_scratch / 1024 - 1;
    } else {
       wm.thread2.scratch_space_base_pointer = 0;
@@ -178,12 +177,8 @@ wm_unit_create_from_key(struct brw_context *brw, struct brw_wm_unit_key *key,
    else
       wm.wm4.sampler_count = (key->sampler_count + 1) / 4;
 
-   if (brw->wm.sampler_bo != NULL) {
-      /* reloc */
-      wm.wm4.sampler_state_pointer = brw->wm.sampler_bo->offset[0] >> 5;
-   } else {
-      wm.wm4.sampler_state_pointer = 0;
-   }
+   /* reloc */
+   wm.wm4.sampler_state_pointer = 0;
 
    wm.wm5.program_uses_depth = key->uses_depth;
    wm.wm5.program_computes_depth = key->computes_depth;
diff --git a/src/gallium/drivers/i965/brw_wm_surface_state.c b/src/gallium/drivers/i965/brw_wm_surface_state.c
index e5d0329967..ed365b03b9 100644
--- a/src/gallium/drivers/i965/brw_wm_surface_state.c
+++ b/src/gallium/drivers/i965/brw_wm_surface_state.c
@@ -130,7 +130,7 @@ brw_update_render_surface(struct brw_context *brw,
        */
    ret = brw->sws->bo_emit_reloc(*bo_out,
                                  BRW_USAGE_RENDER_TARGET,
-                                 ss.ss1.base_addr - surface->bo->offset[0], /* XXX */
+                                 0,
                                  offsetof(struct brw_surface_state, ss1),
                                  surface->bo);
    if (ret)
@@ -167,8 +167,11 @@ brw_wm_get_binding_table(struct brw_context *brw,
                         bo_out))
       return PIPE_OK;
 
+   /* Upload zero data, will all be overwitten with relocation
+    * offsets:
+    */
    for (i = 0; i < brw->wm.nr_surfaces; i++)
-      data[i] = brw->wm.surf_bo[i]->offset[0];
+      data[i] = 0;
 
    ret = brw_upload_cache( &brw->surface_cache, BRW_SS_SURF_BIND,
                            NULL, 0,
diff --git a/src/gallium/winsys/drm/i965/xlib/xlib_i965.c b/src/gallium/winsys/drm/i965/xlib/xlib_i965.c
index 5aec332761..f46d9961c6 100644
--- a/src/gallium/winsys/drm/i965/xlib/xlib_i965.c
+++ b/src/gallium/winsys/drm/i965/xlib/xlib_i965.c
@@ -168,7 +168,6 @@ xlib_brw_bo_alloc( struct brw_winsys_screen *sws,
    buf->offset = align(xbw->used, alignment);
    buf->type = type;
    buf->virtual = MALLOC(size);
-   buf->base.offset = &buf->offset; /* hmm, cheesy */
    buf->base.size = size;
    buf->base.sws = sws;