gallium: give the screen priority when it comes to buffer allocations

allows the driver to overwrite buffer allocation, first step on the way
to making winsys interface internal to the drivers. state trackers and
the code above it will go through the screen

43 files changed, 150 insertions, 152 deletions

diff --git a/src/gallium/drivers/cell/ppu/cell_draw_arrays.c b/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
index 880d535320..ff3871d933 100644
--- a/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
+++ b/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
@@ -52,8 +52,8 @@ cell_map_constant_buffers(struct cell_context *sp)
    uint i;
    for (i = 0; i < 2; i++) {
       if (sp->constants[i].size) {
-         sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer,
-                                                  PIPE_BUFFER_USAGE_CPU_READ);
+         sp->mapped_constants[i] = ws->_buffer_map(ws, sp->constants[i].buffer,
+                                                   PIPE_BUFFER_USAGE_CPU_READ);
          cell_flush_buffer_range(sp, sp->mapped_constants[i], 
                                  sp->constants[i].buffer->size);
       }
@@ -71,7 +71,7 @@ cell_unmap_constant_buffers(struct cell_context *sp)
    uint i;
    for (i = 0; i < 2; i++) {
       if (sp->constants[i].size)
-         ws->buffer_unmap(ws, sp->constants[i].buffer);
+         ws->_buffer_unmap(ws, sp->constants[i].buffer);
       sp->mapped_constants[i] = NULL;
    }
 }
diff --git a/src/gallium/drivers/cell/ppu/cell_state_shader.c b/src/gallium/drivers/cell/ppu/cell_state_shader.c
index cda39f8d59..bcbd81922c 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_shader.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_shader.c
@@ -194,9 +194,9 @@ cell_set_constant_buffer(struct pipe_context *pipe,
    draw_flush(cell->draw);
 
    /* note: reference counting */
-   winsys_buffer_reference(ws,
-                        &cell->constants[shader].buffer,
-                        buf->buffer);
+   pipe_buffer_reference(pipe->screen,
+                         &cell->constants[shader].buffer,
+                         buf->buffer);
    cell->constants[shader].size = buf->size;
 
    if (shader == PIPE_SHADER_VERTEX)
diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c
index 9f83ab8fa4..f1b1a38efc 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.c
+++ b/src/gallium/drivers/cell/ppu/cell_texture.c
@@ -112,8 +112,8 @@ cell_texture_create(struct pipe_screen *screen,
 
    cell_texture_layout(ct);
 
-   ct->buffer = ws->buffer_create(ws, 32, PIPE_BUFFER_USAGE_PIXEL,
-                                  ct->buffer_size);
+   ct->buffer = ws->_buffer_create(ws, 32, PIPE_BUFFER_USAGE_PIXEL,
+                                   ct->buffer_size);
 
    if (!ct->buffer) {
       FREE(ct);
@@ -154,7 +154,7 @@ cell_texture_release(struct pipe_screen *screen,
           */
          if (ct->tiled_buffer[i]) {
             ct->tiled_mapped[i] = NULL;
-            winsys_buffer_reference(screen->winsys, &ct->tiled_buffer[i], NULL);
+            pipe_buffer_reference(screen, &ct->tiled_buffer[i], NULL);
          }
       }
 
@@ -324,12 +324,12 @@ cell_twiddle_texture(struct pipe_screen *screen,
             /* allocate buffer for tiled data now */
             struct pipe_winsys *ws = screen->winsys;
             uint bytes = bufWidth * bufHeight * 4 * numFaces;
-            ct->tiled_buffer[level] = ws->buffer_create(ws, 16,
-                                                        PIPE_BUFFER_USAGE_PIXEL,
-                                                        bytes);
+            ct->tiled_buffer[level] = ws->_buffer_create(ws, 16,
+                                                         PIPE_BUFFER_USAGE_PIXEL,
+                                                         bytes);
             /* and map it */
-            ct->tiled_mapped[level] = ws->buffer_map(ws, ct->tiled_buffer[level],
-                                                     PIPE_BUFFER_USAGE_GPU_READ);
+            ct->tiled_mapped[level] = ws->_buffer_map(ws, ct->tiled_buffer[level],
+                                                      PIPE_BUFFER_USAGE_GPU_READ);
          }
          dst = (uint *) ((ubyte *) ct->tiled_mapped[level] + offset);
 
@@ -406,7 +406,7 @@ cell_get_tex_surface(struct pipe_screen *screen,
    if (ps) {
       assert(ps->refcount);
       assert(ps->winsys);
-      winsys_buffer_reference(ws, &ps->buffer, ct->buffer);
+      pipe_buffer_reference(screen, &ps->buffer, ct->buffer);
       ps->format = pt->format;
       ps->block = pt->block;
       ps->width = pt->width[level];
diff --git a/src/gallium/drivers/i915simple/i915_state.c b/src/gallium/drivers/i915simple/i915_state.c
index 19f194c027..b931556b7e 100644
--- a/src/gallium/drivers/i915simple/i915_state.c
+++ b/src/gallium/drivers/i915simple/i915_state.c
@@ -536,10 +536,10 @@ static void i915_set_constant_buffer(struct pipe_context *pipe,
    if (buf) {
       void *mapped;
       if (buf->buffer && buf->buffer->size &&
-          (mapped = ws->buffer_map(ws, buf->buffer,
-                                   PIPE_BUFFER_USAGE_CPU_READ))) {
+          (mapped = ws->_buffer_map(ws, buf->buffer,
+                                    PIPE_BUFFER_USAGE_CPU_READ))) {
          memcpy(i915->current.constants[shader], mapped, buf->buffer->size);
-         ws->buffer_unmap(ws, buf->buffer);
+         ws->_buffer_unmap(ws, buf->buffer);
          i915->current.num_user_constants[shader]
             = buf->buffer->size / (4 * sizeof(float));
       }
diff --git a/src/gallium/drivers/i915simple/i915_texture.c b/src/gallium/drivers/i915simple/i915_texture.c
index 4acc4b0214..7847f2ef86 100644
--- a/src/gallium/drivers/i915simple/i915_texture.c
+++ b/src/gallium/drivers/i915simple/i915_texture.c
@@ -605,18 +605,18 @@ i915_texture_create(struct pipe_screen *screen,
 
    tex_size = tex->stride * tex->total_nblocksy;
 
-   tex->buffer = ws->buffer_create(ws, 64,
-				   PIPE_BUFFER_USAGE_PIXEL,
-				   tex_size);
+   tex->buffer = ws->_buffer_create(ws, 64,
+                                    PIPE_BUFFER_USAGE_PIXEL,
+                                    tex_size);
 
    if (!tex->buffer)
       goto fail;
 
 #if 0
-   void *ptr = ws->buffer_map(ws, tex->buffer,
+   void *ptr = ws->_buffer_map(ws, tex->buffer,
       PIPE_BUFFER_USAGE_CPU_WRITE);
    memset(ptr, 0x80, tex_size);
-   ws->buffer_unmap(ws, tex->buffer);
+   ws->_buffer_unmap(ws, tex->buffer);
 #endif
 
    return &tex->base;
diff --git a/src/gallium/drivers/i965simple/brw_curbe.c b/src/gallium/drivers/i965simple/brw_curbe.c
index 5e1cce7530..4b1f4d3121 100644
--- a/src/gallium/drivers/i965simple/brw_curbe.c
+++ b/src/gallium/drivers/i965simple/brw_curbe.c
@@ -256,13 +256,13 @@ static void upload_constant_buffer(struct brw_context *brw)
       /* FIXME: buffer size is num_consts + num_immediates */
       if (brw->vs.prog_data->num_consts) {
          /* map the vertex constant buffer and copy to curbe: */
-         void *data = ws->buffer_map(ws, cbuffer->buffer, 0);
+         void *data = ws->_buffer_map(ws, cbuffer->buffer, 0);
          /* FIXME: this is wrong. the cbuffer->buffer->size currently
           * represents size of consts + immediates. so if we'll
           * have both we'll copy over the end of the buffer
           * with the subsequent memcpy */
          memcpy(&buf[offset], data, cbuffer->buffer->size);
-         ws->buffer_unmap(ws, cbuffer->buffer);
+         ws->_buffer_unmap(ws, cbuffer->buffer);
          offset += cbuffer->buffer->size;
       }
       /*immediates*/
diff --git a/src/gallium/drivers/i965simple/brw_tex_layout.c b/src/gallium/drivers/i965simple/brw_tex_layout.c
index 12e2e02cfd..c99eb8e75a 100644
--- a/src/gallium/drivers/i965simple/brw_tex_layout.c
+++ b/src/gallium/drivers/i965simple/brw_tex_layout.c
@@ -295,10 +295,10 @@ brw_texture_create_screen(struct pipe_screen *screen,
       tex->base.nblocksy[0] = pf_get_nblocksy(&tex->base.block, tex->base.height[0]);
    
       if (brw_miptree_layout(tex))
-	 tex->buffer = ws->buffer_create(ws, 64,
-                                         PIPE_BUFFER_USAGE_PIXEL,
-                                         tex->stride *
-                                         tex->total_nblocksy);
+	 tex->buffer = ws->_buffer_create(ws, 64,
+                                          PIPE_BUFFER_USAGE_PIXEL,
+                                          tex->stride *
+                                          tex->total_nblocksy);
 
       if (!tex->buffer) {
 	 FREE(tex);
@@ -322,7 +322,6 @@ brw_texture_release_screen(struct pipe_screen *screen,
        __FUNCTION__, (void *) *pt, (*pt)->refcount - 1);
    */
    if (--(*pt)->refcount <= 0) {
-      struct pipe_winsys *ws = screen->winsys;
       struct brw_texture *tex = (struct brw_texture *)*pt;
       uint i;
 
@@ -330,7 +329,7 @@ brw_texture_release_screen(struct pipe_screen *screen,
       DBG("%s deleting %p\n", __FUNCTION__, (void *) tex);
       */
 
-      winsys_buffer_reference(ws, &tex->buffer, NULL);
+      pipe_buffer_reference(screen, &tex->buffer, NULL);
 
       for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++)
          if (tex->image_offset[i])
@@ -347,7 +346,6 @@ brw_get_tex_surface_screen(struct pipe_screen *screen,
                            struct pipe_texture *pt,
                            unsigned face, unsigned level, unsigned zslice)
 {
-   struct pipe_winsys *ws = screen->winsys;
    struct brw_texture *tex = (struct brw_texture *)pt;
    struct pipe_surface *ps;
    unsigned offset;  /* in bytes */
@@ -369,7 +367,7 @@ brw_get_tex_surface_screen(struct pipe_screen *screen,
    if (ps) {
       ps->refcount = 1;
       pipe_texture_reference(&ps->texture, pt);
-      winsys_buffer_reference(ws, &ps->buffer, tex->buffer);
+      pipe_buffer_reference(screen, &ps->buffer, tex->buffer);
       ps->format = pt->format;
       ps->width = pt->width[level];
       ps->height = pt->height[level];
diff --git a/src/gallium/drivers/nv04/nv04_miptree.c b/src/gallium/drivers/nv04/nv04_miptree.c
index 094c38256b..32800f9741 100644
--- a/src/gallium/drivers/nv04/nv04_miptree.c
+++ b/src/gallium/drivers/nv04/nv04_miptree.c
@@ -58,7 +58,7 @@ nv04_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt)
 
 	nv04_miptree_layout(mt);
 
-	mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
+	mt->buffer = ws->_buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
 					   mt->total_size);
 	if (!mt->buffer) {
 		FREE(mt);
diff --git a/src/gallium/drivers/nv04/nv04_screen.c b/src/gallium/drivers/nv04/nv04_screen.c
index 65eacde6b2..2fa7d35294 100644
--- a/src/gallium/drivers/nv04/nv04_screen.c
+++ b/src/gallium/drivers/nv04/nv04_screen.c
@@ -117,7 +117,7 @@ nv04_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 	struct pipe_winsys *ws = screen->winsys;
 	void *map;
 
-	map = ws->buffer_map(ws, surface->buffer, flags);
+	map = ws->_buffer_map(ws, surface->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -129,7 +129,7 @@ nv04_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 {
 	struct pipe_winsys *ws = screen->winsys;
 
-	ws->buffer_unmap(ws, surface->buffer);
+	ws->_buffer_unmap(ws, surface->buffer);
 }
 
 static void
diff --git a/src/gallium/drivers/nv04/nv04_vbo.c b/src/gallium/drivers/nv04/nv04_vbo.c
index 91f919d48e..117a73a1e4 100644
--- a/src/gallium/drivers/nv04/nv04_vbo.c
+++ b/src/gallium/drivers/nv04/nv04_vbo.c
@@ -23,7 +23,7 @@ boolean nv04_draw_elements( struct pipe_context *pipe,
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv04->vertex_buffer[i].buffer) {
 			void *buf
-				= pipe->winsys->buffer_map(pipe->winsys,
+				= pipe->winsys->_buffer_map(pipe->winsys,
 						nv04->vertex_buffer[i].buffer,
 						PIPE_BUFFER_USAGE_CPU_READ);
 			draw_set_mapped_vertex_buffer(draw, i, buf);
@@ -32,7 +32,7 @@ boolean nv04_draw_elements( struct pipe_context *pipe,
 	/* Map index buffer, if present */
 	if (indexBuffer) {
 		void *mapped_indexes
-			= pipe->winsys->buffer_map(pipe->winsys, indexBuffer,
+			= pipe->winsys->_buffer_map(pipe->winsys, indexBuffer,
 					PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
 	}
@@ -49,12 +49,12 @@ boolean nv04_draw_elements( struct pipe_context *pipe,
 	 */
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv04->vertex_buffer[i].buffer) {
-			pipe->winsys->buffer_unmap(pipe->winsys, nv04->vertex_buffer[i].buffer);
+			pipe->winsys->_buffer_unmap(pipe->winsys, nv04->vertex_buffer[i].buffer);
 			draw_set_mapped_vertex_buffer(draw, i, NULL);
 		}
 	}
 	if (indexBuffer) {
-		pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
+		pipe->winsys->_buffer_unmap(pipe->winsys, indexBuffer);
 		draw_set_mapped_element_buffer(draw, 0, NULL);
 	}
 
diff --git a/src/gallium/drivers/nv10/nv10_miptree.c b/src/gallium/drivers/nv10/nv10_miptree.c
index f8c021261b..384f89c391 100644
--- a/src/gallium/drivers/nv10/nv10_miptree.c
+++ b/src/gallium/drivers/nv10/nv10_miptree.c
@@ -65,7 +65,7 @@ nv10_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt)
 
 	nv10_miptree_layout(mt);
 
-	mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
+	mt->buffer = ws->_buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
 					   mt->total_size);
 	if (!mt->buffer) {
 		FREE(mt);
diff --git a/src/gallium/drivers/nv10/nv10_prim_vbuf.c b/src/gallium/drivers/nv10/nv10_prim_vbuf.c
index e7e81d3dff..bdffaacf78 100644
--- a/src/gallium/drivers/nv10/nv10_prim_vbuf.c
+++ b/src/gallium/drivers/nv10/nv10_prim_vbuf.c
@@ -111,11 +111,11 @@ nv10_vbuf_render_allocate_vertices( struct vbuf_render *render,
 	size_t size = (size_t)vertex_size * (size_t)nr_vertices;
 
 	assert(!nv10_render->buffer);
-	nv10_render->buffer = winsys->buffer_create(winsys, 64, PIPE_BUFFER_USAGE_VERTEX, size);
+	nv10_render->buffer = winsys->_buffer_create(winsys, 64, PIPE_BUFFER_USAGE_VERTEX, size);
 
 	nv10->dirty |= NV10_NEW_VTXARRAYS;
 
-	return winsys->buffer_map(winsys, 
+	return winsys->_buffer_map(winsys, 
 			nv10_render->buffer, 
 			PIPE_BUFFER_USAGE_CPU_WRITE);
 }
@@ -187,7 +187,7 @@ nv10_vbuf_render_release_vertices( struct vbuf_render *render,
 	struct pipe_screen *pscreen = &nv10->screen->pipe;
 
 	assert(nv10_render->buffer);
-	winsys->buffer_unmap(winsys, nv10_render->buffer);
+	winsys->_buffer_unmap(winsys, nv10_render->buffer);
 	pipe_buffer_reference(pscreen, &nv10_render->buffer, NULL);
 }
 
diff --git a/src/gallium/drivers/nv10/nv10_screen.c b/src/gallium/drivers/nv10/nv10_screen.c
index 4d9fbd4b5f..333e0b3252 100644
--- a/src/gallium/drivers/nv10/nv10_screen.c
+++ b/src/gallium/drivers/nv10/nv10_screen.c
@@ -122,7 +122,7 @@ nv10_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 	struct pipe_winsys *ws = screen->winsys;
 	void *map;
 
-	map = ws->buffer_map(ws, surface->buffer, flags);
+	map = ws->_buffer_map(ws, surface->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -134,7 +134,7 @@ nv10_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 {
 	struct pipe_winsys *ws = screen->winsys;
 
-	ws->buffer_unmap(ws, surface->buffer);
+	ws->_buffer_unmap(ws, surface->buffer);
 }
 
 static void
diff --git a/src/gallium/drivers/nv10/nv10_state.c b/src/gallium/drivers/nv10/nv10_state.c
index 119af66dfd..f84d45a730 100644
--- a/src/gallium/drivers/nv10/nv10_state.c
+++ b/src/gallium/drivers/nv10/nv10_state.c
@@ -468,12 +468,12 @@ nv10_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 	if (buf) {
 		void *mapped;
 		if (buf->buffer && buf->buffer->size &&
-                    (mapped = ws->buffer_map(ws, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)))
+                    (mapped = ws->_buffer_map(ws, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)))
 		{
 			memcpy(nv10->constbuf[shader], mapped, buf->buffer->size);
 			nv10->constbuf_nr[shader] =
 				buf->buffer->size / (4 * sizeof(float));
-			ws->buffer_unmap(ws, buf->buffer);
+			ws->_buffer_unmap(ws, buf->buffer);
 		}
 	}
 }
diff --git a/src/gallium/drivers/nv10/nv10_vbo.c b/src/gallium/drivers/nv10/nv10_vbo.c
index d0e788ac03..a6b80e4050 100644
--- a/src/gallium/drivers/nv10/nv10_vbo.c
+++ b/src/gallium/drivers/nv10/nv10_vbo.c
@@ -25,7 +25,7 @@ boolean nv10_draw_elements( struct pipe_context *pipe,
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv10->vtxbuf[i].buffer) {
 			void *buf
-				= pipe->winsys->buffer_map(pipe->winsys,
+				= pipe->winsys->_buffer_map(pipe->winsys,
 						nv10->vtxbuf[i].buffer,
 						PIPE_BUFFER_USAGE_CPU_READ);
 			draw_set_mapped_vertex_buffer(draw, i, buf);
@@ -34,7 +34,7 @@ boolean nv10_draw_elements( struct pipe_context *pipe,
 	/* Map index buffer, if present */
 	if (indexBuffer) {
 		void *mapped_indexes
-			= pipe->winsys->buffer_map(pipe->winsys, indexBuffer,
+			= pipe->winsys->_buffer_map(pipe->winsys, indexBuffer,
 					PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
 	}
@@ -55,12 +55,12 @@ boolean nv10_draw_elements( struct pipe_context *pipe,
 	 */
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv10->vtxbuf[i].buffer) {
-			pipe->winsys->buffer_unmap(pipe->winsys, nv10->vtxbuf[i].buffer);
+			pipe->winsys->_buffer_unmap(pipe->winsys, nv10->vtxbuf[i].buffer);
 			draw_set_mapped_vertex_buffer(draw, i, NULL);
 		}
 	}
 	if (indexBuffer) {
-		pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
+		pipe->winsys->_buffer_unmap(pipe->winsys, indexBuffer);
 		draw_set_mapped_element_buffer(draw, 0, NULL);
 	}
 
diff --git a/src/gallium/drivers/nv20/nv20_miptree.c b/src/gallium/drivers/nv20/nv20_miptree.c
index d2038c391d..759f29c951 100644
--- a/src/gallium/drivers/nv20/nv20_miptree.c
+++ b/src/gallium/drivers/nv20/nv20_miptree.c
@@ -65,7 +65,7 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt)
 
 	nv20_miptree_layout(mt);
 
-	mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
+	mt->buffer = ws->_buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL,
 					   mt->total_size);
 	if (!mt->buffer) {
 		FREE(mt);
diff --git a/src/gallium/drivers/nv20/nv20_prim_vbuf.c b/src/gallium/drivers/nv20/nv20_prim_vbuf.c
index 74540845a8..c4841026b3 100644
--- a/src/gallium/drivers/nv20/nv20_prim_vbuf.c
+++ b/src/gallium/drivers/nv20/nv20_prim_vbuf.c
@@ -113,9 +113,9 @@ static void *
 nv20__allocate_pbuffer(struct nv20_vbuf_render *nv20_render, size_t size)
 {
 	struct pipe_winsys *winsys = nv20_render->nv20->pipe.winsys;
-	nv20_render->pbuffer = winsys->buffer_create(winsys, 64,
+	nv20_render->pbuffer = winsys->_buffer_create(winsys, 64,
 					PIPE_BUFFER_USAGE_VERTEX, size);
-	return winsys->buffer_map(winsys,
+	return winsys->_buffer_map(winsys,
 			nv20_render->pbuffer,
 			PIPE_BUFFER_USAGE_CPU_WRITE);
 }
@@ -334,7 +334,7 @@ nv20_vbuf_render_release_vertices( struct vbuf_render *render,
 	struct pipe_screen *pscreen = &nv20->screen->pipe;
 
 	if (nv20_render->pbuffer) {
-		winsys->buffer_unmap(winsys, nv20_render->pbuffer);
+		winsys->_buffer_unmap(winsys, nv20_render->pbuffer);
 		pipe_buffer_reference(pscreen, &nv20_render->pbuffer, NULL);
 	} else if (nv20_render->mbuffer) {
 		FREE(nv20_render->mbuffer);
diff --git a/src/gallium/drivers/nv20/nv20_screen.c b/src/gallium/drivers/nv20/nv20_screen.c
index 2ca6e6b149..e9adf05a7d 100644
--- a/src/gallium/drivers/nv20/nv20_screen.c
+++ b/src/gallium/drivers/nv20/nv20_screen.c
@@ -122,7 +122,7 @@ nv20_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 	struct pipe_winsys *ws = screen->winsys;
 	void *map;
 
-	map = ws->buffer_map(ws, surface->buffer, flags);
+	map = ws->_buffer_map(ws, surface->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -134,7 +134,7 @@ nv20_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 {
 	struct pipe_winsys *ws = screen->winsys;
 
-	ws->buffer_unmap(ws, surface->buffer);
+	ws->_buffer_unmap(ws, surface->buffer);
 }
 
 static void
diff --git a/src/gallium/drivers/nv20/nv20_state.c b/src/gallium/drivers/nv20/nv20_state.c
index ecec4f49a0..65060006da 100644
--- a/src/gallium/drivers/nv20/nv20_state.c
+++ b/src/gallium/drivers/nv20/nv20_state.c
@@ -461,12 +461,12 @@ nv20_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 	if (buf) {
 		void *mapped;
 		if (buf->buffer && buf->buffer->size &&
-                    (mapped = ws->buffer_map(ws, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)))
+                    (mapped = ws->_buffer_map(ws, buf->buffer, PIPE_BUFFER_USAGE_CPU_READ)))
 		{
 			memcpy(nv20->constbuf[shader], mapped, buf->buffer->size);
 			nv20->constbuf_nr[shader] =
 				buf->buffer->size / (4 * sizeof(float));
-			ws->buffer_unmap(ws, buf->buffer);
+			ws->_buffer_unmap(ws, buf->buffer);
 		}
 	}
 }
diff --git a/src/gallium/drivers/nv20/nv20_vbo.c b/src/gallium/drivers/nv20/nv20_vbo.c
index 4edc4efebd..d6b731790c 100644
--- a/src/gallium/drivers/nv20/nv20_vbo.c
+++ b/src/gallium/drivers/nv20/nv20_vbo.c
@@ -25,7 +25,7 @@ boolean nv20_draw_elements( struct pipe_context *pipe,
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv20->vtxbuf[i].buffer) {
 			void *buf
-				= pipe->winsys->buffer_map(pipe->winsys,
+				= pipe->winsys->_buffer_map(pipe->winsys,
 						nv20->vtxbuf[i].buffer,
 						PIPE_BUFFER_USAGE_CPU_READ);
 			draw_set_mapped_vertex_buffer(draw, i, buf);
@@ -34,7 +34,7 @@ boolean nv20_draw_elements( struct pipe_context *pipe,
 	/* Map index buffer, if present */
 	if (indexBuffer) {
 		void *mapped_indexes
-			= pipe->winsys->buffer_map(pipe->winsys, indexBuffer,
+			= pipe->winsys->_buffer_map(pipe->winsys, indexBuffer,
 					PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
 	}
@@ -55,12 +55,12 @@ boolean nv20_draw_elements( struct pipe_context *pipe,
 	 */
 	for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
 		if (nv20->vtxbuf[i].buffer) {
-			pipe->winsys->buffer_unmap(pipe->winsys, nv20->vtxbuf[i].buffer);
+			pipe->winsys->_buffer_unmap(pipe->winsys, nv20->vtxbuf[i].buffer);
 			draw_set_mapped_vertex_buffer(draw, i, NULL);
 		}
 	}
 	if (indexBuffer) {
-		pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer);
+		pipe->winsys->_buffer_unmap(pipe->winsys, indexBuffer);
 		draw_set_mapped_element_buffer(draw, 0, NULL);
 	}
 
diff --git a/src/gallium/drivers/nv20/nv20_vertprog.c b/src/gallium/drivers/nv20/nv20_vertprog.c
index a885fcd7a5..c4f3d0f14f 100644
--- a/src/gallium/drivers/nv20/nv20_vertprog.c
+++ b/src/gallium/drivers/nv20/nv20_vertprog.c
@@ -749,7 +749,7 @@ nv20_vertprog_validate(struct nv20_context *nv20)
 		float *map = NULL;
 
 		if (constbuf) {
-			map = ws->buffer_map(ws, constbuf,
+			map = ws->_buffer_map(ws, constbuf,
 					     PIPE_BUFFER_USAGE_CPU_READ);
 		}
 
@@ -771,7 +771,7 @@ nv20_vertprog_validate(struct nv20_context *nv20)
 		}
 
 		if (constbuf) {
-			ws->buffer_unmap(ws, constbuf);
+			ws->_buffer_unmap(ws, constbuf);
 		}
 	}
 
diff --git a/src/gallium/drivers/nv30/nv30_fragprog.c b/src/gallium/drivers/nv30/nv30_fragprog.c
index 320ba3f4bf..f22a06c1a3 100644
--- a/src/gallium/drivers/nv30/nv30_fragprog.c
+++ b/src/gallium/drivers/nv30/nv30_fragprog.c
@@ -803,7 +803,7 @@ nv30_fragprog_upload(struct nv30_context *nv30,
 	uint32_t *map;
 	int i;
 
-	map = ws->buffer_map(ws, fp->buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
+	map = ws->_buffer_map(ws, fp->buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
 
 #if 0
 	for (i = 0; i < fp->insn_len; i++) {
@@ -825,7 +825,7 @@ nv30_fragprog_upload(struct nv30_context *nv30,
 		}
 	}
 
-	ws->buffer_unmap(ws, fp->buffer);
+	ws->_buffer_unmap(ws, fp->buffer);
 }
 
 static boolean
@@ -849,7 +849,7 @@ nv30_fragprog_validate(struct nv30_context *nv30)
 		return FALSE;
 	}
 
-	fp->buffer = ws->buffer_create(ws, 0x100, 0, fp->insn_len * 4);
+	fp->buffer = ws->_buffer_create(ws, 0x100, 0, fp->insn_len * 4);
 	nv30_fragprog_upload(nv30, fp);
 
 	so = so_new(8, 1);
@@ -869,7 +869,7 @@ update_constants:
 	if (fp->nr_consts) {
 		float *map;
 		
-		map = ws->buffer_map(ws, constbuf, PIPE_BUFFER_USAGE_CPU_READ);
+		map = ws->_buffer_map(ws, constbuf, PIPE_BUFFER_USAGE_CPU_READ);
 		for (i = 0; i < fp->nr_consts; i++) {
 			struct nv30_fragment_program_data *fpd = &fp->consts[i];
 			uint32_t *p = &fp->insn[fpd->offset];
@@ -880,7 +880,7 @@ update_constants:
 			memcpy(p, cb, 4 * sizeof(float));
 			new_consts = TRUE;
 		}
-		ws->buffer_unmap(ws, constbuf);
+		ws->_buffer_unmap(ws, constbuf);
 
 		if (new_consts)
 			nv30_fragprog_upload(nv30, fp);
diff --git a/src/gallium/drivers/nv30/nv30_miptree.c b/src/gallium/drivers/nv30/nv30_miptree.c
index 54fb3585f8..bf6c4a1c74 100644
--- a/src/gallium/drivers/nv30/nv30_miptree.c
+++ b/src/gallium/drivers/nv30/nv30_miptree.c
@@ -93,7 +93,7 @@ nv30_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
 
 	nv30_miptree_layout(mt);
 
-	mt->buffer = ws->buffer_create(ws, 256,
+	mt->buffer = ws->_buffer_create(ws, 256,
 				       PIPE_BUFFER_USAGE_PIXEL |
 				       NOUVEAU_BUFFER_USAGE_TEXTURE,
 				       mt->total_size);
@@ -181,7 +181,7 @@ nv30_miptree_surface_del(struct pipe_screen *pscreen,
 		return;
 
 	pipe_texture_reference(&ps->texture, NULL);
-	pipe_buffer_reference(pscreen->winsys, &ps->buffer, NULL);
+	pipe_buffer_reference(pscreen, &ps->buffer, NULL);
 	FREE(ps);
 }
 
diff --git a/src/gallium/drivers/nv30/nv30_screen.c b/src/gallium/drivers/nv30/nv30_screen.c
index 1fac6d3df8..56b20ae2fd 100644
--- a/src/gallium/drivers/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nv30/nv30_screen.c
@@ -161,7 +161,7 @@ nv30_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 
 	assert(surface_to_map);
 
-	map = ws->buffer_map(ws, surface_to_map->buffer, flags);
+	map = ws->_buffer_map(ws, surface_to_map->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -189,7 +189,7 @@ nv30_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 
 	assert(surface_to_unmap);
 
-	ws->buffer_unmap(ws, surface_to_unmap->buffer);
+	ws->_buffer_unmap(ws, surface_to_unmap->buffer);
 
 	if (surface_to_unmap != surface) {
 		struct nv30_screen *nvscreen = nv30_screen(screen);
diff --git a/src/gallium/drivers/nv30/nv30_vbo.c b/src/gallium/drivers/nv30/nv30_vbo.c
index 2d6d48ac16..cf0468f879 100644
--- a/src/gallium/drivers/nv30/nv30_vbo.c
+++ b/src/gallium/drivers/nv30/nv30_vbo.c
@@ -116,7 +116,7 @@ nv30_vbo_static_attrib(struct nv30_context *nv30, struct nouveau_stateobj *so,
 	if (nv30_vbo_format_to_hw(ve->src_format, &type, &ncomp))
 		return FALSE;
 
-	map  = ws->buffer_map(ws, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
+	map  = ws->_buffer_map(ws, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
 	map += vb->buffer_offset + ve->src_offset;
 
 	switch (type) {
@@ -148,17 +148,17 @@ nv30_vbo_static_attrib(struct nv30_context *nv30, struct nouveau_stateobj *so,
 			so_data  (so, fui(v[0]));
 			break;
 		default:
-			ws->buffer_unmap(ws, vb->buffer);
+			ws->_buffer_unmap(ws, vb->buffer);
 			return FALSE;
 		}
 	}
 		break;
 	default:
-		ws->buffer_unmap(ws, vb->buffer);
+		ws->_buffer_unmap(ws, vb->buffer);
 		return FALSE;
 	}
 
-	ws->buffer_unmap(ws, vb->buffer);
+	ws->_buffer_unmap(ws, vb->buffer);
 
 	return TRUE;
 }
@@ -371,7 +371,7 @@ nv30_draw_elements_inline(struct pipe_context *pipe,
 	struct pipe_winsys *ws = pipe->winsys;
 	void *map;
 
-	map = ws->buffer_map(ws, ib, PIPE_BUFFER_USAGE_CPU_READ);
+	map = ws->_buffer_map(ws, ib, PIPE_BUFFER_USAGE_CPU_READ);
 	if (!ib) {
 		NOUVEAU_ERR("failed mapping ib\n");
 		return FALSE;
@@ -392,7 +392,7 @@ nv30_draw_elements_inline(struct pipe_context *pipe,
 		break;
 	}
 
-	ws->buffer_unmap(ws, ib);
+	ws->_buffer_unmap(ws, ib);
 	return TRUE;
 }
 
diff --git a/src/gallium/drivers/nv30/nv30_vertprog.c b/src/gallium/drivers/nv30/nv30_vertprog.c
index 72824559e8..b67dde0808 100644
--- a/src/gallium/drivers/nv30/nv30_vertprog.c
+++ b/src/gallium/drivers/nv30/nv30_vertprog.c
@@ -749,7 +749,7 @@ nv30_vertprog_validate(struct nv30_context *nv30)
 		float *map = NULL;
 
 		if (constbuf) {
-			map = ws->buffer_map(ws, constbuf,
+			map = ws->_buffer_map(ws, constbuf,
 					     PIPE_BUFFER_USAGE_CPU_READ);
 		}
 
@@ -771,7 +771,7 @@ nv30_vertprog_validate(struct nv30_context *nv30)
 		}
 
 		if (constbuf) {
-			ws->buffer_unmap(ws, constbuf);
+			ws->_buffer_unmap(ws, constbuf);
 		}
 	}
 
diff --git a/src/gallium/drivers/nv40/nv40_draw.c b/src/gallium/drivers/nv40/nv40_draw.c
index 8e56cdc2fe..3d5332a80b 100644
--- a/src/gallium/drivers/nv40/nv40_draw.c
+++ b/src/gallium/drivers/nv40/nv40_draw.c
@@ -241,13 +241,13 @@ nv40_draw_elements_swtnl(struct pipe_context *pipe,
 	nv40_state_emit(nv40);
 
 	for (i = 0; i < nv40->vtxbuf_nr; i++) {
-		map = ws->buffer_map(ws, nv40->vtxbuf[i].buffer,
-				     PIPE_BUFFER_USAGE_CPU_READ);
+		map = ws->_buffer_map(ws, nv40->vtxbuf[i].buffer,
+                                      PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_vertex_buffer(nv40->draw, i, map);
 	}
 
 	if (idxbuf) {
-		map = ws->buffer_map(ws, idxbuf, PIPE_BUFFER_USAGE_CPU_READ);
+		map = ws->_buffer_map(ws, idxbuf, PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_element_buffer(nv40->draw, idxbuf_size, map);
 	} else {
 		draw_set_mapped_element_buffer(nv40->draw, 0, NULL);
@@ -256,7 +256,7 @@ nv40_draw_elements_swtnl(struct pipe_context *pipe,
 	if (nv40->constbuf[PIPE_SHADER_VERTEX]) {
 		const unsigned nr = nv40->constbuf_nr[PIPE_SHADER_VERTEX];
 
-		map = ws->buffer_map(ws, nv40->constbuf[PIPE_SHADER_VERTEX],
+		map = ws->_buffer_map(ws, nv40->constbuf[PIPE_SHADER_VERTEX],
 				     PIPE_BUFFER_USAGE_CPU_READ);
 		draw_set_mapped_constant_buffer(nv40->draw, map, nr);
 	}
@@ -264,13 +264,13 @@ nv40_draw_elements_swtnl(struct pipe_context *pipe,
 	draw_arrays(nv40->draw, mode, start, count);
 
 	for (i = 0; i < nv40->vtxbuf_nr; i++)
-		ws->buffer_unmap(ws, nv40->vtxbuf[i].buffer);
+		ws->_buffer_unmap(ws, nv40->vtxbuf[i].buffer);
 
 	if (idxbuf)
-		ws->buffer_unmap(ws, idxbuf);
+		ws->_buffer_unmap(ws, idxbuf);
 
 	if (nv40->constbuf[PIPE_SHADER_VERTEX])
-		ws->buffer_unmap(ws, nv40->constbuf[PIPE_SHADER_VERTEX]);
+		ws->_buffer_unmap(ws, nv40->constbuf[PIPE_SHADER_VERTEX]);
 
 	draw_flush(nv40->draw);
 	pipe->flush(pipe, 0, NULL);
diff --git a/src/gallium/drivers/nv40/nv40_fragprog.c b/src/gallium/drivers/nv40/nv40_fragprog.c
index 91dcbebda0..5a127d9c7b 100644
--- a/src/gallium/drivers/nv40/nv40_fragprog.c
+++ b/src/gallium/drivers/nv40/nv40_fragprog.c
@@ -886,7 +886,7 @@ nv40_fragprog_upload(struct nv40_context *nv40,
 	uint32_t *map;
 	int i;
 
-	map = ws->buffer_map(ws, fp->buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
+	map = ws->_buffer_map(ws, fp->buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
 
 #if 0
 	for (i = 0; i < fp->insn_len; i++) {
@@ -908,7 +908,7 @@ nv40_fragprog_upload(struct nv40_context *nv40,
 		}
 	}
 
-	ws->buffer_unmap(ws, fp->buffer);
+	ws->_buffer_unmap(ws, fp->buffer);
 }
 
 static boolean
@@ -932,7 +932,7 @@ nv40_fragprog_validate(struct nv40_context *nv40)
 		return FALSE;
 	}
 
-	fp->buffer = ws->buffer_create(ws, 0x100, 0, fp->insn_len * 4);
+	fp->buffer = ws->_buffer_create(ws, 0x100, 0, fp->insn_len * 4);
 	nv40_fragprog_upload(nv40, fp);
 
 	so = so_new(4, 1);
@@ -948,7 +948,7 @@ update_constants:
 	if (fp->nr_consts) {
 		float *map;
 		
-		map = ws->buffer_map(ws, constbuf, PIPE_BUFFER_USAGE_CPU_READ);
+		map = ws->_buffer_map(ws, constbuf, PIPE_BUFFER_USAGE_CPU_READ);
 		for (i = 0; i < fp->nr_consts; i++) {
 			struct nv40_fragment_program_data *fpd = &fp->consts[i];
 			uint32_t *p = &fp->insn[fpd->offset];
@@ -959,7 +959,7 @@ update_constants:
 			memcpy(p, cb, 4 * sizeof(float));
 			new_consts = TRUE;
 		}
-		ws->buffer_unmap(ws, constbuf);
+		ws->_buffer_unmap(ws, constbuf);
 
 		if (new_consts)
 			nv40_fragprog_upload(nv40, fp);
diff --git a/src/gallium/drivers/nv40/nv40_miptree.c b/src/gallium/drivers/nv40/nv40_miptree.c
index ba912ddcbb..6ed0d39edf 100644
--- a/src/gallium/drivers/nv40/nv40_miptree.c
+++ b/src/gallium/drivers/nv40/nv40_miptree.c
@@ -97,7 +97,7 @@ nv40_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *pt)
 
 	nv40_miptree_layout(mt);
 
-	mt->buffer = ws->buffer_create(ws, 256, buf_usage, mt->total_size);
+	mt->buffer = ws->_buffer_create(ws, 256, buf_usage, mt->total_size);
 	if (!mt->buffer) {
 		FREE(mt);
 		return NULL;
diff --git a/src/gallium/drivers/nv40/nv40_screen.c b/src/gallium/drivers/nv40/nv40_screen.c
index ab128fecda..20662fd3ff 100644
--- a/src/gallium/drivers/nv40/nv40_screen.c
+++ b/src/gallium/drivers/nv40/nv40_screen.c
@@ -170,7 +170,7 @@ nv40_surface_map(struct pipe_screen *screen, struct pipe_surface *surface,
 
 	assert(surface_to_map);
 
-	map = ws->buffer_map(ws, surface_to_map->buffer, flags);
+	map = ws->_buffer_map(ws, surface_to_map->buffer, flags);
 	if (!map)
 		return NULL;
 
@@ -198,7 +198,7 @@ nv40_surface_unmap(struct pipe_screen *screen, struct pipe_surface *surface)
 
 	assert(surface_to_unmap);
 
-	ws->buffer_unmap(ws, surface_to_unmap->buffer);
+	ws->_buffer_unmap(ws, surface_to_unmap->buffer);
 
 	if (surface_to_unmap != surface) {
 		struct nv40_screen *nvscreen = nv40_screen(screen);
diff --git a/src/gallium/drivers/nv40/nv40_vbo.c b/src/gallium/drivers/nv40/nv40_vbo.c
index 8f1834628f..f20183ddd4 100644
--- a/src/gallium/drivers/nv40/nv40_vbo.c
+++ b/src/gallium/drivers/nv40/nv40_vbo.c
@@ -116,7 +116,7 @@ nv40_vbo_static_attrib(struct nv40_context *nv40, struct nouveau_stateobj *so,
 	if (nv40_vbo_format_to_hw(ve->src_format, &type, &ncomp))
 		return FALSE;
 
-	map  = ws->buffer_map(ws, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
+	map  = ws->_buffer_map(ws, vb->buffer, PIPE_BUFFER_USAGE_CPU_READ);
 	map += vb->buffer_offset + ve->src_offset;
 
 	switch (type) {
@@ -148,17 +148,17 @@ nv40_vbo_static_attrib(struct nv40_context *nv40, struct nouveau_stateobj *so,
 			so_data  (so, fui(v[0]));
 			break;
 		default:
-			ws->buffer_unmap(ws, vb->buffer);
+			ws->_buffer_unmap(ws, vb->buffer);
 			return FALSE;
 		}
 	}
 		break;
 	default:
-		ws->buffer_unmap(ws, vb->buffer);
+		ws->_buffer_unmap(ws, vb->buffer);
 		return FALSE;
 	}
 
-	ws->buffer_unmap(ws, vb->buffer);
+	ws->_buffer_unmap(ws, vb->buffer);
 
 	return TRUE;
 }
@@ -370,7 +370,7 @@ nv40_draw_elements_inline(struct pipe_context *pipe,
 	struct pipe_winsys *ws = pipe->winsys;
 	void *map;
 
-	map = ws->buffer_map(ws, ib, PIPE_BUFFER_USAGE_CPU_READ);
+	map = ws->_buffer_map(ws, ib, PIPE_BUFFER_USAGE_CPU_READ);
 	if (!ib) {
 		NOUVEAU_ERR("failed mapping ib\n");
 		return FALSE;
@@ -391,7 +391,7 @@ nv40_draw_elements_inline(struct pipe_context *pipe,
 		break;
 	}
 
-	ws->buffer_unmap(ws, ib);
+	ws->_buffer_unmap(ws, ib);
 	return TRUE;
 }
 
diff --git a/src/gallium/drivers/nv40/nv40_vertprog.c b/src/gallium/drivers/nv40/nv40_vertprog.c
index 1392fe956f..7a82bb0f5e 100644
--- a/src/gallium/drivers/nv40/nv40_vertprog.c
+++ b/src/gallium/drivers/nv40/nv40_vertprog.c
@@ -980,7 +980,7 @@ check_gpu_resources:
 		float *map = NULL;
 
 		if (constbuf) {
-			map = ws->buffer_map(ws, constbuf,
+			map = ws->_buffer_map(ws, constbuf,
 					     PIPE_BUFFER_USAGE_CPU_READ);
 		}
 
@@ -1002,7 +1002,7 @@ check_gpu_resources:
 		}
 
 		if (constbuf)
-			ws->buffer_unmap(ws, constbuf);
+			ws->_buffer_unmap(ws, constbuf);
 	}
 
 	/* Upload vtxprog */
diff --git a/src/gallium/drivers/nv50/nv50_miptree.c b/src/gallium/drivers/nv50/nv50_miptree.c
index 7770fcc3f2..3965dad5ad 100644
--- a/src/gallium/drivers/nv50/nv50_miptree.c
+++ b/src/gallium/drivers/nv50/nv50_miptree.c
@@ -88,14 +88,14 @@ nv50_miptree_create(struct pipe_screen *pscreen, const struct pipe_texture *tmp)
 			size  = align(size, 64);
 			size *= align(pt->height[l], 8) * pt->block.size;
 
-			lvl->image[i] = ws->buffer_create(ws, 256, 0, size);
+			lvl->image[i] = ws->_buffer_create(ws, 256, 0, size);
 			lvl->image_offset[i] = mt->total_size;
 
 			mt->total_size += size;
 		}
 	}
 
-	mt->buffer = ws->buffer_create(ws, 256, usage, mt->total_size);
+	mt->buffer = ws->_buffer_create(ws, 256, usage, mt->total_size);
 	if (!mt->buffer) {
 		FREE(mt);
 		return NULL;
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 7686f746eb..73867cf675 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -1581,11 +1581,11 @@ nv50_program_validate_data(struct nv50_context *nv50, struct nv50_program *p)
 	}
 
 	if (p->param_nr) {
-		float *map = ws->buffer_map(ws, nv50->constbuf[p->type],
+		float *map = ws->_buffer_map(ws, nv50->constbuf[p->type],
 					    PIPE_BUFFER_USAGE_CPU_READ);
 		nv50_program_upload_data(nv50, map, p->data->start,
 					 p->param_nr);
-		ws->buffer_unmap(ws, nv50->constbuf[p->type]);
+		ws->_buffer_unmap(ws, nv50->constbuf[p->type]);
 	}
 
 	if (p->immd_nr) {
@@ -1606,7 +1606,7 @@ nv50_program_validate_code(struct nv50_context *nv50, struct nv50_program *p)
 	boolean upload = FALSE;
 
 	if (!p->buffer) {
-		p->buffer = ws->buffer_create(ws, 0x100, 0, p->exec_size * 4);
+		p->buffer = ws->_buffer_create(ws, 0x100, 0, p->exec_size * 4);
 		upload = TRUE;
 	}
 
diff --git a/src/gallium/drivers/nv50/nv50_query.c b/src/gallium/drivers/nv50/nv50_query.c
index b923c820eb..b0fb346ba1 100644
--- a/src/gallium/drivers/nv50/nv50_query.c
+++ b/src/gallium/drivers/nv50/nv50_query.c
@@ -47,7 +47,7 @@ nv50_query_create(struct pipe_context *pipe, unsigned type)
 	assert (q->type == PIPE_QUERY_OCCLUSION_COUNTER);
 	q->type = type;
 
-	q->buffer = ws->buffer_create(ws, 256, 0, 16);
+	q->buffer = ws->_buffer_create(ws, 256, 0, 16);
 	if (!q->buffer) {
 		FREE(q);
 		return NULL;
@@ -62,7 +62,7 @@ nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
 	struct nv50_query *q = nv50_query(pq);
 
 	if (q) {
-		pipe_buffer_reference(pipe, &q->buffer, NULL);
+		pipe_buffer_reference(pipe->screen, &q->buffer, NULL);
 		FREE(q);
 	}
 }
@@ -107,11 +107,11 @@ nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
 	 */
 
 	if (!q->ready) {
-		uint32_t *map = ws->buffer_map(ws, q->buffer,
+		uint32_t *map = ws->_buffer_map(ws, q->buffer,
 					       PIPE_BUFFER_USAGE_CPU_READ);
 		q->result = map[1];
 		q->ready = TRUE;
-		ws->buffer_unmap(ws, q->buffer);
+		ws->_buffer_unmap(ws, q->buffer);
 	}
 
 	*result = q->result;
diff --git a/src/gallium/drivers/nv50/nv50_screen.c b/src/gallium/drivers/nv50/nv50_screen.c
index ef46233f83..3abacfc8d5 100644
--- a/src/gallium/drivers/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nv50/nv50_screen.c
@@ -242,7 +242,7 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 	so_data  (so, 8);
 
 	/* Shared constant buffer */
-	screen->constbuf = ws->buffer_create(ws, 0, 0, 128 * 4 * 4);
+	screen->constbuf = ws->_buffer_create(ws, 0, 0, 128 * 4 * 4);
 	if (nvws->res_init(&screen->vp_data_heap, 0, 128)) {
 		NOUVEAU_ERR("Error initialising constant buffer\n");
 		nv50_screen_destroy(&screen->pipe);
@@ -261,7 +261,7 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 	 * blocks.  At some point we *may* want to go the NVIDIA way of doing
 	 * things?
 	 */
-	screen->tic = ws->buffer_create(ws, 0, 0, 32 * 8 * 4);
+	screen->tic = ws->_buffer_create(ws, 0, 0, 32 * 8 * 4);
 	so_method(so, screen->tesla, 0x1280, 3);
 	so_reloc (so, screen->tic, 0, NOUVEAU_BO_VRAM |
 		  NOUVEAU_BO_RD | NOUVEAU_BO_HIGH, 0, 0);
@@ -275,7 +275,7 @@ nv50_screen_create(struct pipe_winsys *ws, struct nouveau_winsys *nvws)
 		  NOUVEAU_BO_RD | NOUVEAU_BO_LOW, 0, 0);
 	so_data  (so, 0x00000800);
 
-	screen->tsc = ws->buffer_create(ws, 0, 0, 32 * 8 * 4);
+	screen->tsc = ws->_buffer_create(ws, 0, 0, 32 * 8 * 4);
 	so_method(so, screen->tesla, 0x1280, 3);
 	so_reloc (so, screen->tsc, 0, NOUVEAU_BO_VRAM |
 		  NOUVEAU_BO_RD | NOUVEAU_BO_HIGH, 0, 0);
diff --git a/src/gallium/drivers/nv50/nv50_surface.c b/src/gallium/drivers/nv50/nv50_surface.c
index 3f45a2fe18..743eb6e257 100644
--- a/src/gallium/drivers/nv50/nv50_surface.c
+++ b/src/gallium/drivers/nv50/nv50_surface.c
@@ -65,7 +65,7 @@ nv50_surface_map(struct pipe_screen *screen, struct pipe_surface *ps,
 {
 	struct pipe_winsys *ws = screen->winsys;
 
-	return ws->buffer_map(ws, ps->buffer, flags);
+	return ws->_buffer_map(ws, ps->buffer, flags);
 }
 
 static void
@@ -73,7 +73,7 @@ nv50_surface_unmap(struct pipe_screen *pscreen, struct pipe_surface *ps)
 {
 	struct pipe_winsys *ws = pscreen->winsys;
 
-	ws->buffer_unmap(ws, ps->buffer);
+	ws->_buffer_unmap(ws, ps->buffer);
 }
 
 void
diff --git a/src/gallium/drivers/nv50/nv50_vbo.c b/src/gallium/drivers/nv50/nv50_vbo.c
index c482a4c241..86471c00e0 100644
--- a/src/gallium/drivers/nv50/nv50_vbo.c
+++ b/src/gallium/drivers/nv50/nv50_vbo.c
@@ -153,7 +153,7 @@ nv50_draw_elements(struct pipe_context *pipe,
 {
 	struct nv50_context *nv50 = nv50_context(pipe);
 	struct pipe_winsys *ws = pipe->winsys;
-	void *map = ws->buffer_map(ws, indexBuffer, PIPE_BUFFER_USAGE_CPU_READ);
+	void *map = ws->_buffer_map(ws, indexBuffer, PIPE_BUFFER_USAGE_CPU_READ);
 
 	nv50_state_validate(nv50);
 
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index d8a5631488..c2d882a819 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -87,7 +87,7 @@ softpipe_unmap_surfaces(struct softpipe_context *sp)
 static void softpipe_destroy( struct pipe_context *pipe )
 {
    struct softpipe_context *softpipe = softpipe_context( pipe );
-   struct pipe_winsys *ws = pipe->winsys;
+   struct pipe_screen *screen = pipe->screen;
    uint i;
 
    if (softpipe->draw)
@@ -116,7 +116,7 @@ static void softpipe_destroy( struct pipe_context *pipe )
 
    for (i = 0; i < Elements(softpipe->constants); i++) {
       if (softpipe->constants[i].buffer) {
-         winsys_buffer_reference(ws, &softpipe->constants[i].buffer, NULL);
+         pipe_buffer_reference(screen, &softpipe->constants[i].buffer, NULL);
       }
    }
 
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index ed3e8f95ae..8d58b1ed16 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -50,7 +50,7 @@ softpipe_map_constant_buffers(struct softpipe_context *sp)
    uint i;
    for (i = 0; i < PIPE_SHADER_TYPES; i++) {
       if (sp->constants[i].buffer && sp->constants[i].buffer->size)
-         sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer,
+         sp->mapped_constants[i] = ws->_buffer_map(ws, sp->constants[i].buffer,
                                                   PIPE_BUFFER_USAGE_CPU_READ);
    }
 
@@ -74,7 +74,7 @@ softpipe_unmap_constant_buffers(struct softpipe_context *sp)
 
    for (i = 0; i < 2; i++) {
       if (sp->constants[i].buffer && sp->constants[i].buffer->size)
-         ws->buffer_unmap(ws, sp->constants[i].buffer);
+         ws->_buffer_unmap(ws, sp->constants[i].buffer);
       sp->mapped_constants[i] = NULL;
    }
 }
diff --git a/src/gallium/drivers/softpipe/sp_state_fs.c b/src/gallium/drivers/softpipe/sp_state_fs.c
index 15815160ed..43b134354f 100644
--- a/src/gallium/drivers/softpipe/sp_state_fs.c
+++ b/src/gallium/drivers/softpipe/sp_state_fs.c
@@ -146,13 +146,13 @@ softpipe_set_constant_buffer(struct pipe_context *pipe,
                              const struct pipe_constant_buffer *buf)
 {
    struct softpipe_context *softpipe = softpipe_context(pipe);
-   struct pipe_winsys *ws = pipe->winsys;
+   struct pipe_screen *screen = pipe->screen;
 
    assert(shader < PIPE_SHADER_TYPES);
    assert(index == 0);
 
    /* note: reference counting */
-   winsys_buffer_reference(ws,
+   pipe_buffer_reference(screen,
 			 &softpipe->constants[shader].buffer,
 			 buf ? buf->buffer : NULL);
 
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index faf9e871f9..078925ca45 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -87,9 +87,9 @@ softpipe_texture_layout(struct pipe_screen *screen,
       depth = minify(depth);
    }
 
-   spt->buffer = ws->buffer_create(ws, 32,
-                                   PIPE_BUFFER_USAGE_PIXEL,
-                                   buffer_size);
+   spt->buffer = ws->_buffer_create(ws, 32,
+                                    PIPE_BUFFER_USAGE_PIXEL,
+                                    buffer_size);
 
    return spt->buffer != NULL;
 }
@@ -105,12 +105,12 @@ softpipe_displaytarget_layout(struct pipe_screen *screen,
    spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]);  
    spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]);  
 
-   spt->buffer = ws->surface_buffer_create( ws, 
-                                           spt->base.width[0], 
-                                           spt->base.height[0],
-                                           spt->base.format,
-                                           usage,
-                                           &spt->stride[0]);
+   spt->buffer = ws->_surface_buffer_create( ws, 
+                                             spt->base.width[0], 
+                                             spt->base.height[0],
+                                             spt->base.format,
+                                             usage,
+                                             &spt->stride[0]);
 
    return spt->buffer != NULL;
 }
diff --git a/src/gallium/drivers/trace/tr_winsys.c b/src/gallium/drivers/trace/tr_winsys.c
index c4148fe810..9a19d4d077 100644
--- a/src/gallium/drivers/trace/tr_winsys.c
+++ b/src/gallium/drivers/trace/tr_winsys.c
@@ -118,7 +118,7 @@ trace_winsys_surface_buffer_create(struct pipe_winsys *_winsys,
    trace_dump_arg(format, format);
    trace_dump_arg(uint, usage);
 
-   result = winsys->surface_buffer_create(winsys,
+   result = winsys->_surface_buffer_create(winsys,
                                           width, height,
                                           format,
                                           usage,
@@ -153,7 +153,7 @@ trace_winsys_buffer_create(struct pipe_winsys *_winsys,
    trace_dump_arg(uint, usage);
    trace_dump_arg(uint, size);
 
-   buffer = winsys->buffer_create(winsys, alignment, usage, size);
+   buffer = winsys->_buffer_create(winsys, alignment, usage, size);
    
    trace_dump_ret(ptr, buffer);
    
@@ -162,10 +162,10 @@ trace_winsys_buffer_create(struct pipe_winsys *_winsys,
    /* Zero the buffer to avoid dumping uninitialized memory */
    if(buffer->usage & PIPE_BUFFER_USAGE_CPU_WRITE) {
       void *map;
-      map = winsys->buffer_map(winsys, buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
+      map = winsys->_buffer_map(winsys, buffer, PIPE_BUFFER_USAGE_CPU_WRITE);
       if(map) {
          memset(map, 0, buffer->size);
-         winsys->buffer_unmap(winsys, buffer);
+         winsys->_buffer_unmap(winsys, buffer);
       }
    }
    
@@ -190,7 +190,7 @@ trace_winsys_user_buffer_create(struct pipe_winsys *_winsys,
    trace_dump_arg_end();
    trace_dump_arg(uint, size);
 
-   result = winsys->user_buffer_create(winsys, data, size);
+   result = winsys->_user_buffer_create(winsys, data, size);
    
    trace_dump_ret(ptr, result);
    
@@ -216,7 +216,7 @@ trace_winsys_user_buffer_update(struct pipe_winsys *_winsys,
    const void *map;
    
    if(buffer && buffer->usage & TRACE_BUFFER_USAGE_USER) {
-      map = winsys->buffer_map(winsys, buffer, PIPE_BUFFER_USAGE_CPU_READ);
+      map = winsys->_buffer_map(winsys, buffer, PIPE_BUFFER_USAGE_CPU_READ);
       if(map) {
          trace_dump_call_begin("pipe_winsys", "buffer_write");
          
@@ -234,7 +234,7 @@ trace_winsys_user_buffer_update(struct pipe_winsys *_winsys,
       
          trace_dump_call_end();
          
-         winsys->buffer_unmap(winsys, buffer);
+         winsys->_buffer_unmap(winsys, buffer);
       }
    }
 }
@@ -249,7 +249,7 @@ trace_winsys_buffer_map(struct pipe_winsys *_winsys,
    struct pipe_winsys *winsys = tr_ws->winsys;
    void *map;
    
-   map = winsys->buffer_map(winsys, buffer, usage);
+   map = winsys->_buffer_map(winsys, buffer, usage);
    if(map) {
       if(usage & PIPE_BUFFER_USAGE_CPU_WRITE) {
          assert(!hash_table_get(tr_ws->buffer_maps, buffer));
@@ -290,7 +290,7 @@ trace_winsys_buffer_unmap(struct pipe_winsys *_winsys,
       hash_table_remove(tr_ws->buffer_maps, buffer);
    }
    
-   winsys->buffer_unmap(winsys, buffer);
+   winsys->_buffer_unmap(winsys, buffer);
 }
 
 
@@ -306,7 +306,7 @@ trace_winsys_buffer_destroy(struct pipe_winsys *_winsys,
    trace_dump_arg(ptr, winsys);
    trace_dump_arg(ptr, buffer);
 
-   winsys->buffer_destroy(winsys, buffer);
+   winsys->_buffer_destroy(winsys, buffer);
    
    trace_dump_call_end();
 }
@@ -420,12 +420,12 @@ trace_winsys_create(struct pipe_winsys *winsys)
    tr_ws->base.destroy = trace_winsys_destroy;
    tr_ws->base.get_name = trace_winsys_get_name;
    tr_ws->base.flush_frontbuffer = trace_winsys_flush_frontbuffer;
-   tr_ws->base.surface_buffer_create = trace_winsys_surface_buffer_create;
-   tr_ws->base.buffer_create = trace_winsys_buffer_create;
-   tr_ws->base.user_buffer_create = trace_winsys_user_buffer_create;
-   tr_ws->base.buffer_map = trace_winsys_buffer_map;
-   tr_ws->base.buffer_unmap = trace_winsys_buffer_unmap;
-   tr_ws->base.buffer_destroy = trace_winsys_buffer_destroy;
+   tr_ws->base._surface_buffer_create = trace_winsys_surface_buffer_create;
+   tr_ws->base._buffer_create = trace_winsys_buffer_create;
+   tr_ws->base._user_buffer_create = trace_winsys_user_buffer_create;
+   tr_ws->base._buffer_map = trace_winsys_buffer_map;
+   tr_ws->base._buffer_unmap = trace_winsys_buffer_unmap;
+   tr_ws->base._buffer_destroy = trace_winsys_buffer_destroy;
    tr_ws->base.fence_reference = trace_winsys_fence_reference;
    tr_ws->base.fence_signalled = trace_winsys_fence_signalled;
    tr_ws->base.fence_finish = trace_winsys_fence_finish;