r300g: rebuild screen/winsys interface

This creates a cleaner winsys and drop the simple screen stuff.

It makes r300g use pb_bufmgr structs.

It also tries to avoid overheads from mapping too often.

v5: clean warnings

v6: break out of cache check on first buffer - since most likely
the first busy one implies all after it are busy.

v7: cleanup a bit

v8-merged: drop cman for now to just get all the interface changes in first.
rework to changes that happened upstream

Signed-off-by: Dave Airlie <airlied@redhat.com>

8 files changed, 720 insertions, 175 deletions

diff --git a/src/gallium/winsys/drm/radeon/core/Makefile b/src/gallium/winsys/drm/radeon/core/Makefile
index 860cbb6dbf..13bbbf730d 100644
--- a/src/gallium/winsys/drm/radeon/core/Makefile
+++ b/src/gallium/winsys/drm/radeon/core/Makefile
@@ -5,7 +5,7 @@ include $(TOP)/configs/current
 LIBNAME = radeonwinsys
 
 C_SOURCES = \
-	radeon_buffer.c \
+	radeon_drm_buffer.c \
 	radeon_drm.c \
 	radeon_r300.c
 
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_buffer.h b/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
index f776e2d900..e1fcfcfcca 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
@@ -30,48 +30,56 @@
 #ifndef RADEON_BUFFER_H
 #define RADEON_BUFFER_H
 
+#include <stdio.h>
+
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+
 #include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_bufmgr.h"
 
 #include "radeon_bo.h"
 #include "radeon_cs.h"
 
 #include "radeon_winsys.h"
 
-struct radeon_pipe_buffer {
-    struct pipe_buffer  base;
-    /* Pointer to GPU-backed BO. */
-    struct radeon_bo    *bo;
-    /* Pointer to fallback PB buffer. */
-    struct pb_buffer    *pb;
-    boolean flinked;
-    uint32_t flink;
-};
 
 #define RADEON_MAX_BOS 24
 
-struct radeon_winsys_priv {
-    /* DRM FD */
-    int fd;
+static INLINE struct pb_buffer *
+radeon_pb_buffer(struct r300_winsys_buffer *buffer)
+{
+    return (struct pb_buffer *)buffer;
+}
 
-    /* Radeon BO manager. */
-    struct radeon_bo_manager* bom;
+static INLINE struct r300_winsys_buffer *
+radeon_libdrm_winsys_buffer(struct pb_buffer *buffer)
+{
+    return (struct r300_winsys_buffer *)buffer;
+}
 
-    /* Radeon CS manager. */
-    struct radeon_cs_manager* csm;
+struct pb_manager *
+radeon_drm_bufmgr_create(struct radeon_libdrm_winsys *rws);
 
-    /* Current CS. */
-    struct radeon_cs* cs;
+boolean radeon_drm_bufmgr_add_buffer(struct pb_buffer *_buf,
+				     uint32_t rd, uint32_t wd);
 
-    /* Flush CB */
-    void (*flush_cb)(void *);
-    void *flush_data;
-};
 
-struct radeon_winsys* radeon_pipe_winsys(int fb);
-#if 0
-struct pipe_surface *radeon_surface_from_handle(struct radeon_context *radeon_context,
-                                             uint32_t handle,
-                                             enum pipe_format format,
-                                             int w, int h, int pitch);
-#endif
+void radeon_drm_bufmgr_write_reloc(struct pb_buffer *_buf,
+				   uint32_t rd, uint32_t wd,
+				   uint32_t flags);
+
+struct radeon_libdrm_winsys* radeon_pipe_winsys(int fd);
+
+struct pb_buffer *radeon_drm_bufmgr_create_buffer_from_handle(struct pb_manager *_mgr,
+							      uint32_t handle);
+
+void radeon_drm_bufmgr_set_tiling(struct pb_buffer *_buf, boolean microtiled, boolean macrotiled, uint32_t pitch);
+
+void radeon_drm_bufmgr_flush_maps(struct pb_manager *_mgr);
+
+boolean radeon_drm_bufmgr_get_handle(struct pb_buffer *_buf,
+				     struct winsys_handle *whandle);
+
+boolean radeon_drm_bufmgr_is_buffer_referenced(struct pb_buffer *_buf);
 #endif
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.c b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
index 97edb6a47e..d70173e805 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
@@ -41,8 +41,22 @@
 #include "xf86drm.h"
 #include <sys/ioctl.h>
 
+static struct radeon_libdrm_winsys *
+radeon_winsys_create(int fd)
+{
+    struct radeon_libdrm_winsys *rws;
+
+    rws = CALLOC_STRUCT(radeon_libdrm_winsys);
+    if (rws == NULL) {
+        return NULL;
+    }
+
+    rws->fd = fd;
+    return rws;
+}
+
 /* Helper function to do the ioctls needed for setup and init. */
-static void do_ioctls(int fd, struct radeon_winsys* winsys)
+static void do_ioctls(int fd, struct radeon_libdrm_winsys* winsys)
 {
     struct drm_radeon_gem_info gem_info = {0};
     struct drm_radeon_info info = {0};
@@ -133,19 +147,28 @@ struct pipe_screen* radeon_create_screen(struct drm_api* api,
                                          int drmFB,
                                          struct drm_create_screen_arg *arg)
 {
-    struct radeon_winsys* rwinsys = radeon_pipe_winsys(drmFB);
-    do_ioctls(drmFB, rwinsys);
+    struct radeon_libdrm_winsys* rws; 
+    boolean ret;
+
+    rws = radeon_winsys_create(drmFB);
+    if (!rws)
+	return NULL;
+
+    do_ioctls(drmFB, rws);
 
     /* The state tracker can organize a softpipe fallback if no hw
      * driver is found.
      */
-    if (is_r3xx(rwinsys->pci_id)) {
-        radeon_setup_winsys(drmFB, rwinsys);
-        return r300_create_screen(rwinsys);
-    } else {
-        FREE(rwinsys);
-        return NULL;
+    if (is_r3xx(rws->pci_id)) {
+        ret = radeon_setup_winsys(drmFB, rws);
+	if (ret == FALSE)
+	    goto fail;
+        return r300_create_screen(&rws->base);
     }
+
+fail:
+    FREE(rws);
+    return NULL;
 }
 
 static void radeon_drm_api_destroy(struct drm_api *api)
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.h b/src/gallium/winsys/drm/radeon/core/radeon_drm.h
index 78451b6f01..2dc077c052 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.h
@@ -37,6 +37,22 @@ struct pipe_screen* radeon_create_screen(struct drm_api* api,
                                          int drmFB,
 					 struct drm_create_screen_arg *arg);
 
+boolean radeon_buffer_from_texture(struct drm_api* api,
+                                   struct pipe_screen* screen,
+                                   struct pipe_texture* texture,
+                                   struct pipe_buffer** buffer,
+                                   unsigned* stride);
+
+boolean radeon_handle_from_buffer(struct drm_api* api,
+                                  struct pipe_screen* screen,
+                                  struct pipe_buffer* buffer,
+                                  unsigned* handle);
+
+boolean radeon_global_handle_from_buffer(struct drm_api* api,
+                                         struct pipe_screen* screen,
+                                         struct pipe_buffer* buffer,
+                                         unsigned* handle);
+
 void radeon_destroy_drm_api(struct drm_api* api);
 
 /* Guess at whether this chipset should use r300g.
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c b/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c
new file mode 100644
index 0000000000..cc56a2bb8f
--- /dev/null
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c
@@ -0,0 +1,368 @@
+
+#include <sys/ioctl.h>
+#include "radeon_drm.h"
+#include "radeon_bo_gem.h"
+#include "radeon_cs_gem.h"
+#include "radeon_buffer.h"
+
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_simple_list.h"
+#include "pipebuffer/pb_buffer.h"
+#include "pipebuffer/pb_bufmgr.h"
+
+#include "radeon_winsys.h"
+struct radeon_drm_bufmgr;
+
+struct radeon_drm_buffer {
+    struct pb_buffer base;
+    struct radeon_drm_bufmgr *mgr;
+
+    struct radeon_bo *bo;
+
+    boolean flinked;
+    uint32_t flink;
+
+    boolean mapped;
+    struct radeon_drm_buffer *next, *prev;
+};
+
+extern const struct pb_vtbl radeon_drm_buffer_vtbl;
+
+
+static INLINE struct radeon_drm_buffer *
+radeon_drm_buffer(struct pb_buffer *buf)
+{
+    assert(buf);
+    assert(buf->vtbl == &radeon_drm_buffer_vtbl);
+    return (struct radeon_drm_buffer *)buf;
+}
+
+struct radeon_drm_bufmgr {
+    struct pb_manager base;
+    struct radeon_libdrm_winsys *rws;
+    struct radeon_drm_buffer buffer_map_list;
+};
+
+static INLINE struct radeon_drm_bufmgr *
+radeon_drm_bufmgr(struct pb_manager *mgr)
+{
+    assert(mgr);
+    return (struct radeon_drm_bufmgr *)mgr;
+}
+
+static void
+radeon_drm_buffer_destroy(struct pb_buffer *_buf)
+{
+    struct radeon_drm_buffer *buf = radeon_drm_buffer(_buf);
+
+    if (buf->mapped) {
+	remove_from_list(buf);
+	radeon_bo_unmap(buf->bo);
+	buf->mapped = false;
+    }
+    radeon_bo_unref(buf->bo);
+
+    FREE(buf);
+}
+
+static void *
+radeon_drm_buffer_map(struct pb_buffer *_buf,
+		      unsigned flags)
+{
+    struct radeon_drm_buffer *buf = radeon_drm_buffer(_buf);
+    int write;
+
+    if (buf->mapped)
+	return buf->bo->ptr;
+    
+    if (flags & PIPE_BUFFER_USAGE_DONTBLOCK) {
+        uint32_t domain;
+
+        if (radeon_bo_is_busy(buf->bo, &domain))
+            return NULL;
+    }
+
+
+    if (radeon_bo_is_referenced_by_cs(buf->bo, buf->mgr->rws->cs)) {
+        buf->mgr->rws->flush_cb(buf->mgr->rws->flush_data);
+    }
+
+    if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) {
+        write = 1;
+    }
+
+    if (radeon_bo_map(buf->bo, write)) {
+        return NULL;
+    }
+    buf->mapped = true;
+    insert_at_tail(&buf->mgr->buffer_map_list, buf);
+    return buf->bo->ptr;
+}
+
+static void
+radeon_drm_buffer_unmap(struct pb_buffer *_buf)
+{
+    (void)_buf;
+}
+
+static void
+radeon_drm_buffer_get_base_buffer(struct pb_buffer *buf,
+				  struct pb_buffer **base_buf,
+				  unsigned *offset)
+{
+    *base_buf = buf;
+    *offset = 0;
+}
+
+
+static enum pipe_error
+radeon_drm_buffer_validate(struct pb_buffer *_buf, 
+			   struct pb_validate *vl,
+			   unsigned flags)
+{
+   /* Always pinned */
+   return PIPE_OK;
+}
+
+static void
+radeon_drm_buffer_fence(struct pb_buffer *buf,
+			struct pipe_fence_handle *fence)
+{
+}
+
+const struct pb_vtbl radeon_drm_buffer_vtbl = {
+    radeon_drm_buffer_destroy,
+    radeon_drm_buffer_map,
+    radeon_drm_buffer_unmap,
+    radeon_drm_buffer_validate,
+    radeon_drm_buffer_fence,
+    radeon_drm_buffer_get_base_buffer,
+};
+
+
+static uint32_t radeon_domain_from_usage(unsigned usage)
+{
+    uint32_t domain = 0;
+
+    if (usage & PIPE_BUFFER_USAGE_GPU_WRITE) {
+        domain |= RADEON_GEM_DOMAIN_VRAM;
+    }
+    if (usage & PIPE_BUFFER_USAGE_PIXEL) {
+        domain |= RADEON_GEM_DOMAIN_VRAM;
+    }
+    if (usage & PIPE_BUFFER_USAGE_VERTEX) {
+        domain |= RADEON_GEM_DOMAIN_GTT;
+    }
+    if (usage & PIPE_BUFFER_USAGE_INDEX) {
+        domain |= RADEON_GEM_DOMAIN_GTT;
+    }
+
+    return domain;
+}
+
+struct pb_buffer *radeon_drm_bufmgr_create_buffer_from_handle(struct pb_manager *_mgr,
+							      uint32_t handle)
+{
+    struct radeon_drm_bufmgr *mgr = radeon_drm_bufmgr(_mgr);
+    struct radeon_libdrm_winsys *rws = mgr->rws;
+    struct radeon_drm_buffer *buf;
+    struct radeon_bo *bo;
+
+    bo = radeon_bo_open(rws->bom, handle, 0,
+			0, 0, 0);
+    if (bo == NULL)
+	return NULL;
+
+    buf = CALLOC_STRUCT(radeon_drm_buffer);
+    if (!buf) {
+	radeon_bo_unref(bo);
+	return NULL;
+    }
+
+    make_empty_list(buf);
+
+    pipe_reference_init(&buf->base.base.reference, 1);
+    buf->base.base.alignment = 0;
+    buf->base.base.usage = PIPE_BUFFER_USAGE_PIXEL;
+    buf->base.base.size = 0;
+    buf->base.vtbl = &radeon_drm_buffer_vtbl;
+    buf->mgr = mgr;
+
+    buf->bo = bo;
+
+    return &buf->base;
+}
+
+static struct pb_buffer *
+radeon_drm_bufmgr_create_buffer(struct pb_manager *_mgr,
+				pb_size size,
+				const struct pb_desc *desc)
+{
+    struct radeon_drm_bufmgr *mgr = radeon_drm_bufmgr(_mgr);
+    struct radeon_libdrm_winsys *rws = mgr->rws;
+    struct radeon_drm_buffer *buf;
+    uint32_t domain;
+
+    buf = CALLOC_STRUCT(radeon_drm_buffer);
+    if (!buf)
+	goto error1;
+
+    pipe_reference_init(&buf->base.base.reference, 1);
+    buf->base.base.alignment = desc->alignment;
+    buf->base.base.usage = desc->usage;
+    buf->base.base.size = size;
+    buf->base.vtbl = &radeon_drm_buffer_vtbl;
+    buf->mgr = mgr;
+
+    make_empty_list(buf);
+    domain = radeon_domain_from_usage(desc->usage);
+    buf->bo = radeon_bo_open(rws->bom, 0, size,
+			     desc->alignment, domain, 0);
+    if (buf->bo == NULL)
+	goto error2;
+
+    return &buf->base;
+
+ error2:
+    FREE(buf);
+ error1:
+    return NULL; 
+}
+
+static void
+radeon_drm_bufmgr_flush(struct pb_manager *mgr)
+{
+    /* NOP */
+}
+
+static void
+radeon_drm_bufmgr_destroy(struct pb_manager *_mgr)
+{
+    struct radeon_drm_bufmgr *mgr = radeon_drm_bufmgr(_mgr);
+    FREE(mgr);
+}
+
+struct pb_manager *
+radeon_drm_bufmgr_create(struct radeon_libdrm_winsys *rws)
+{
+    struct radeon_drm_bufmgr *mgr;
+
+    mgr = CALLOC_STRUCT(radeon_drm_bufmgr);
+    if (!mgr)
+	return NULL;
+
+    mgr->base.destroy = radeon_drm_bufmgr_destroy;
+    mgr->base.create_buffer = radeon_drm_bufmgr_create_buffer;
+    mgr->base.flush = radeon_drm_bufmgr_flush;
+
+    mgr->rws = rws;
+    make_empty_list(&mgr->buffer_map_list);
+    return &mgr->base;
+}
+
+static struct radeon_drm_buffer *get_drm_buffer(struct pb_buffer *_buf)
+{
+    struct radeon_drm_buffer *buf;
+    if (_buf->vtbl == &radeon_drm_buffer_vtbl) {
+        buf = radeon_drm_buffer(_buf);
+    } else {
+	struct pb_buffer *base_buf;
+	pb_size offset;
+	pb_get_base_buffer(_buf, &base_buf, &offset);
+
+	buf = radeon_drm_buffer(base_buf);
+    }
+    return buf;
+}
+
+boolean radeon_drm_bufmgr_get_handle(struct pb_buffer *_buf,
+				     struct winsys_handle *whandle)
+{
+    int retval, fd;
+    struct drm_gem_flink flink;
+    struct radeon_drm_buffer *buf = get_drm_buffer(_buf);
+    if (whandle->type == DRM_API_HANDLE_TYPE_SHARED) {
+	if (!buf->flinked) {
+	    fd = buf->mgr->rws->fd;
+	    flink.handle = buf->bo->handle;
+
+	    retval = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
+	    if (retval) {
+		return false;
+	    }
+
+	    buf->flinked = TRUE;
+	    buf->flink = flink.name;
+	}
+	whandle->handle = buf->flink;
+    } else if (whandle->type == DRM_API_HANDLE_TYPE_KMS) {
+	whandle->handle = buf->bo->handle;
+    }
+    return TRUE;
+}
+					   
+
+void radeon_drm_bufmgr_set_tiling(struct pb_buffer *_buf, boolean microtiled, boolean macrotiled, uint32_t pitch)
+{
+    struct radeon_drm_buffer *buf = get_drm_buffer(_buf);
+    uint32_t flags = 0;
+
+    if (microtiled)
+	flags |= RADEON_BO_FLAGS_MICRO_TILE;
+    if (macrotiled)
+	flags |= RADEON_BO_FLAGS_MACRO_TILE;
+
+    radeon_bo_set_tiling(buf->bo, flags, pitch);
+
+}
+
+boolean radeon_drm_bufmgr_add_buffer(struct pb_buffer *_buf,
+				     uint32_t rd, uint32_t wd)
+{
+    struct radeon_drm_buffer *buf = get_drm_buffer(_buf);
+    radeon_cs_space_add_persistent_bo(buf->mgr->rws->cs, buf->bo,
+					  rd, wd);
+    return true;
+}
+
+void radeon_drm_bufmgr_write_reloc(struct pb_buffer *_buf,
+				   uint32_t rd, uint32_t wd,
+				   uint32_t flags)
+{
+    struct radeon_drm_buffer *buf = get_drm_buffer(_buf);
+    int retval;
+
+    retval = radeon_cs_write_reloc(buf->mgr->rws->cs,
+				   buf->bo, rd, wd, flags);
+    if (retval) {
+        debug_printf("radeon: Relocation of %p (%d, %d, %d) failed!\n",
+		     buf, rd, wd, flags);
+    }
+}
+
+boolean radeon_drm_bufmgr_is_buffer_referenced(struct pb_buffer *_buf)
+{
+    struct radeon_drm_buffer *buf = get_drm_buffer(_buf);
+    uint32_t domain;
+
+    return (radeon_bo_is_referenced_by_cs(buf->bo, buf->mgr->rws->cs) ||
+	    radeon_bo_is_busy(buf->bo, &domain));
+}
+					    
+
+void radeon_drm_bufmgr_flush_maps(struct pb_manager *_mgr)
+{
+    struct radeon_drm_bufmgr *mgr = radeon_drm_bufmgr(_mgr);
+    struct radeon_drm_buffer *rpb, *t_rpb;
+
+    foreach_s(rpb, t_rpb, &mgr->buffer_map_list) {
+	rpb->mapped = 0;
+	radeon_bo_unmap(rpb->bo);
+	remove_from_list(rpb);
+    }
+
+    make_empty_list(&mgr->buffer_map_list);
+
+    
+}
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_r300.c b/src/gallium/winsys/drm/radeon/core/radeon_r300.c
index 122bd21354..5b82a776a8 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_r300.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_r300.c
@@ -23,31 +23,139 @@
 #include "radeon_r300.h"
 #include "radeon_buffer.h"
 
+#include "radeon_bo_gem.h"
 #include "radeon_cs_gem.h"
+#include "state_tracker/drm_api.h"
 
-static void radeon_set_flush_cb(struct radeon_winsys *winsys,
+static struct r300_winsys_buffer *
+radeon_r300_winsys_buffer_create(struct r300_winsys_screen *rws,
+				 unsigned alignment,
+				 unsigned usage,
+				 unsigned size)
+{
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    struct pb_desc desc;
+    struct pb_manager *provider;
+    struct pb_buffer *buffer;
+
+    memset(&desc, 0, sizeof(desc));
+    desc.alignment = alignment;
+    desc.usage = usage;
+
+    if (usage & PIPE_BUFFER_USAGE_CONSTANT)
+        provider = ws->mman;
+    else
+        provider = ws->kman;
+    buffer = provider->create_buffer(provider, size, &desc);
+    if (!buffer)
+	return NULL;
+
+    return radeon_libdrm_winsys_buffer(buffer);
+}
+
+static void radeon_r300_winsys_buffer_destroy(struct r300_winsys_buffer *buf)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+
+    pb_destroy(_buf);
+}
+static void radeon_r300_winsys_buffer_set_tiling(struct r300_winsys_screen *rws,
+						  struct r300_winsys_buffer *buf,
+						  uint32_t pitch,
+						  boolean microtiled,
+						  boolean macrotiled)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+    radeon_drm_bufmgr_set_tiling(_buf, microtiled, macrotiled, pitch);
+}
+
+static void *radeon_r300_winsys_buffer_map(struct r300_winsys_screen *ws,
+					   struct r300_winsys_buffer *buf,
+					   unsigned usage)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+    
+    return pb_map(_buf, usage);
+}
+
+static void radeon_r300_winsys_buffer_unmap(struct r300_winsys_screen *ws,
+					    struct r300_winsys_buffer *buf)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+
+    pb_unmap(_buf);
+}
+
+static void radeon_r300_winsys_buffer_reference(struct r300_winsys_screen *rws,
+						struct r300_winsys_buffer **pdst,
+						struct r300_winsys_buffer *src)
+{
+    struct pb_buffer *_src = radeon_pb_buffer(src);
+    struct pb_buffer *_dst = radeon_pb_buffer(*pdst);
+
+    pb_reference(&_dst, _src);
+
+    *pdst = radeon_libdrm_winsys_buffer(_dst);
+}
+
+static boolean radeon_r300_winsys_is_buffer_referenced(struct r300_winsys_screen *rws,
+						       struct r300_winsys_buffer *buf)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+
+    return radeon_drm_bufmgr_is_buffer_referenced(_buf);
+}
+
+static struct r300_winsys_buffer *radeon_r300_winsys_buffer_from_handle(struct r300_winsys_screen *rws,
+									struct pipe_screen *screen,
+									struct winsys_handle *whandle,
+									unsigned *stride)
+{
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    struct pb_buffer *_buf;
+
+    _buf = radeon_drm_bufmgr_create_buffer_from_handle(ws->kman, whandle->handle);
+    *stride = whandle->stride;
+    return radeon_libdrm_winsys_buffer(_buf);
+}
+
+static boolean radeon_r300_winsys_buffer_get_handle(struct r300_winsys_screen *rws,
+						    struct r300_winsys_buffer *buffer,
+						    unsigned stride,
+						    struct winsys_handle *whandle)
+{
+    struct pb_buffer *_buf = radeon_pb_buffer(buffer);
+    boolean ret;
+    ret = radeon_drm_bufmgr_get_handle(_buf, whandle);
+    if (ret)
+	whandle->stride = stride;
+    return ret;
+}
+
+static void radeon_set_flush_cb(struct r300_winsys_screen *rws,
                                 void (*flush_cb)(void *),
                                 void *data)
 {
-    winsys->priv->flush_cb = flush_cb;
-    winsys->priv->flush_data = data;
-    radeon_cs_space_set_flush(winsys->priv->cs, flush_cb, data);
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    ws->flush_cb = flush_cb;
+    ws->flush_data = data;
+    radeon_cs_space_set_flush(ws->cs, flush_cb, data);
 }
 
-static boolean radeon_add_buffer(struct radeon_winsys* winsys,
-                                 struct pipe_buffer* pbuffer,
+static boolean radeon_add_buffer(struct r300_winsys_screen *rws,
+                                 struct r300_winsys_buffer *buf,
                                  uint32_t rd,
                                  uint32_t wd)
 {
-    struct radeon_bo* bo = ((struct radeon_pipe_buffer*)pbuffer)->bo;
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
 
-    radeon_cs_space_add_persistent_bo(winsys->priv->cs, bo, rd, wd);
-    return TRUE;
+    return radeon_drm_bufmgr_add_buffer(_buf, rd, wd);
 }
 
-static boolean radeon_validate(struct radeon_winsys* winsys)
+static boolean radeon_validate(struct r300_winsys_screen *rws)
 {
-    if (radeon_cs_space_check(winsys->priv->cs) < 0) {
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    if (radeon_cs_space_check(ws->cs) < 0) {
         return FALSE;
     }
 
@@ -55,108 +163,175 @@ static boolean radeon_validate(struct radeon_winsys* winsys)
     return TRUE;
 }
 
-static boolean radeon_check_cs(struct radeon_winsys* winsys, int size)
+static boolean radeon_check_cs(struct r300_winsys_screen *rws, int size)
 {
-    struct radeon_cs* cs = winsys->priv->cs;
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    struct radeon_cs *cs = ws->cs;
 
-    return radeon_validate(winsys) && cs->cdw + size <= cs->ndw;
+    return radeon_validate(rws) && cs->cdw + size <= cs->ndw;
 }
 
-static void radeon_begin_cs(struct radeon_winsys* winsys,
+static void radeon_begin_cs(struct r300_winsys_screen *rws,
                             int size,
                             const char* file,
                             const char* function,
                             int line)
 {
-    radeon_cs_begin(winsys->priv->cs, size, file, function, line);
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    radeon_cs_begin(ws->cs, size, file, function, line);
 }
 
-static void radeon_write_cs_dword(struct radeon_winsys* winsys,
+static void radeon_write_cs_dword(struct r300_winsys_screen *rws,
                                   uint32_t dword)
 {
-    radeon_cs_write_dword(winsys->priv->cs, dword);
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    radeon_cs_write_dword(ws->cs, dword);
 }
 
-static void radeon_write_cs_reloc(struct radeon_winsys* winsys,
-                                  struct pipe_buffer* pbuffer,
+static void radeon_write_cs_reloc(struct r300_winsys_screen *rws,
+                                  struct r300_winsys_buffer *buf,
                                   uint32_t rd,
                                   uint32_t wd,
                                   uint32_t flags)
 {
-    int retval = 0;
-    struct radeon_pipe_buffer* radeon_buffer =
-        (struct radeon_pipe_buffer*)pbuffer;
-
-    assert(!radeon_buffer->pb);
-
-    retval = radeon_cs_write_reloc(winsys->priv->cs, radeon_buffer->bo,
-                                   rd, wd, flags);
-
-    if (retval) {
-        debug_printf("radeon: Relocation of %p (%d, %d, %d) failed!\n",
-                pbuffer, rd, wd, flags);
-    }
+    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+    radeon_drm_bufmgr_write_reloc(_buf, rd, wd, flags);
 }
 
-static void radeon_reset_bos(struct radeon_winsys *winsys)
+static void radeon_reset_bos(struct r300_winsys_screen *rws)
 {
-    radeon_cs_space_reset_bos(winsys->priv->cs);
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    radeon_cs_space_reset_bos(ws->cs);
 }
 
-static void radeon_end_cs(struct radeon_winsys* winsys,
+static void radeon_end_cs(struct r300_winsys_screen *rws,
                           const char* file,
                           const char* function,
                           int line)
 {
-    radeon_cs_end(winsys->priv->cs, file, function, line);
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
+    radeon_cs_end(ws->cs, file, function, line);
 }
 
-static void radeon_flush_cs(struct radeon_winsys* winsys)
+static void radeon_flush_cs(struct r300_winsys_screen *rws)
 {
+    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
     int retval;
 
     /* Don't flush a zero-sized CS. */
-    if (!winsys->priv->cs->cdw) {
+    if (!ws->cs->cdw) {
         return;
     }
 
+    radeon_drm_bufmgr_flush_maps(ws->kman);
     /* Emit the CS. */
-    retval = radeon_cs_emit(winsys->priv->cs);
+    retval = radeon_cs_emit(ws->cs);
     if (retval) {
         debug_printf("radeon: Bad CS, dumping...\n");
-        radeon_cs_print(winsys->priv->cs, stderr);
+        radeon_cs_print(ws->cs, stderr);
     }
 
     /* Reset CS.
      * Someday, when we care about performance, we should really find a way
      * to rotate between two or three CS objects so that the GPU can be
      * spinning through one CS while another one is being filled. */
-    radeon_cs_erase(winsys->priv->cs);
+    radeon_cs_erase(ws->cs);
 }
 
-void
-radeon_setup_winsys(int fd, struct radeon_winsys* winsys)
+static uint32_t radeon_get_value(struct r300_winsys_screen *rws,
+			     enum r300_value_id id)
 {
-    struct radeon_winsys_priv* priv = winsys->priv;
+    struct radeon_libdrm_winsys *ws = (struct radeon_libdrm_winsys *)rws;
 
-    priv->csm = radeon_cs_manager_gem_ctor(fd);
+    switch(id) {
+    case R300_VID_PCI_ID:
+	return ws->pci_id;
+    case R300_VID_GB_PIPES:
+	return ws->gb_pipes;
+    case R300_VID_Z_PIPES:
+	return ws->z_pipes;
+    }
+    return 0;
+}
+
+static void
+radeon_winsys_destroy(struct r300_winsys_screen *rws)
+{
+    struct radeon_libdrm_winsys *ws = (struct radeon_libdrm_winsys *)rws;
+    radeon_cs_destroy(ws->cs);
+
+    ws->kman->destroy(ws->kman);
+    ws->mman->destroy(ws->mman);
+
+    radeon_bo_manager_gem_dtor(ws->bom);
+    radeon_cs_manager_gem_dtor(ws->csm);
+}
+
+boolean
+radeon_setup_winsys(int fd, struct radeon_libdrm_winsys* ws)
+{
+    
+    ws->csm = radeon_cs_manager_gem_ctor(fd);
+    if (!ws->csm)
+	goto fail;
+    ws->bom = radeon_bo_manager_gem_ctor(fd);
+    if (!ws->bom)
+	goto fail;
+    ws->kman = radeon_drm_bufmgr_create(ws);
+    if (!ws->kman)
+	goto fail;
+
+    ws->mman = pb_malloc_bufmgr_create();
+    if (!ws->mman)
+	goto fail;
 
     /* Size limit on IBs is 64 kibibytes. */
-    priv->cs = radeon_cs_create(priv->csm, 1024 * 64 / 4);
-    radeon_cs_set_limit(priv->cs,
-            RADEON_GEM_DOMAIN_GTT, winsys->gart_size);
-    radeon_cs_set_limit(priv->cs,
-            RADEON_GEM_DOMAIN_VRAM, winsys->vram_size);
-
-    winsys->add_buffer = radeon_add_buffer;
-    winsys->validate = radeon_validate;
-
-    winsys->check_cs = radeon_check_cs;
-    winsys->begin_cs = radeon_begin_cs;
-    winsys->write_cs_dword = radeon_write_cs_dword;
-    winsys->write_cs_reloc = radeon_write_cs_reloc;
-    winsys->end_cs = radeon_end_cs;
-    winsys->flush_cs = radeon_flush_cs;
-    winsys->reset_bos = radeon_reset_bos;
-    winsys->set_flush_cb = radeon_set_flush_cb;
+    ws->cs = radeon_cs_create(ws->csm, 1024 * 64 / 4);
+    if (!ws->cs)
+	goto fail;
+    radeon_cs_set_limit(ws->cs,
+            RADEON_GEM_DOMAIN_GTT, ws->gart_size);
+    radeon_cs_set_limit(ws->cs,
+            RADEON_GEM_DOMAIN_VRAM, ws->vram_size);
+
+    ws->base.add_buffer = radeon_add_buffer;
+    ws->base.validate = radeon_validate;
+    ws->base.destroy = radeon_winsys_destroy;
+    ws->base.check_cs = radeon_check_cs;
+    ws->base.begin_cs = radeon_begin_cs;
+    ws->base.write_cs_dword = radeon_write_cs_dword;
+    ws->base.write_cs_reloc = radeon_write_cs_reloc;
+    ws->base.end_cs = radeon_end_cs;
+    ws->base.flush_cs = radeon_flush_cs;
+    ws->base.reset_bos = radeon_reset_bos;
+    ws->base.set_flush_cb = radeon_set_flush_cb;
+    ws->base.get_value = radeon_get_value;
+
+    ws->base.buffer_create = radeon_r300_winsys_buffer_create;
+    ws->base.buffer_destroy = radeon_r300_winsys_buffer_destroy;
+    ws->base.buffer_set_tiling = radeon_r300_winsys_buffer_set_tiling;
+    ws->base.buffer_map = radeon_r300_winsys_buffer_map;
+    ws->base.buffer_unmap = radeon_r300_winsys_buffer_unmap;
+    ws->base.buffer_reference = radeon_r300_winsys_buffer_reference;
+    ws->base.buffer_from_handle = radeon_r300_winsys_buffer_from_handle;
+    ws->base.buffer_get_handle = radeon_r300_winsys_buffer_get_handle;
+    ws->base.is_buffer_referenced = radeon_r300_winsys_is_buffer_referenced;
+    return TRUE;
+
+fail:
+    if (ws->csm)
+	radeon_cs_manager_gem_dtor(ws->csm);
+
+    if (ws->bom)
+	radeon_bo_manager_gem_dtor(ws->bom);
+
+
+    if (ws->kman)
+	ws->kman->destroy(ws->kman);
+    if (ws->mman)
+	ws->mman->destroy(ws->mman);
+
+    if (ws->cs)
+	radeon_cs_destroy(ws->cs);
+    return FALSE;
 }
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_r300.h b/src/gallium/winsys/drm/radeon/core/radeon_r300.h
index e655dc32c8..2703464ad8 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_r300.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_r300.h
@@ -25,6 +25,6 @@
 
 #include "radeon_winsys.h"
 
-void radeon_setup_winsys(int fd, struct radeon_winsys* winsys);
+boolean radeon_setup_winsys(int fd, struct radeon_libdrm_winsys* winsys);
 
 #endif /* RADEON_R300_H */
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_winsys.h b/src/gallium/winsys/drm/radeon/core/radeon_winsys.h
index 887a381cc4..16cc701ad6 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_winsys.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_winsys.h
@@ -30,16 +30,15 @@
 #ifndef RADEON_WINSYS_H
 #define RADEON_WINSYS_H
 
-#include "util/u_simple_screen.h"
+#include "r300_winsys.h"
 
-struct radeon_winsys_priv;
-
-struct radeon_winsys {
+struct radeon_libdrm_winsys {
     /* Parent class. */
-    struct pipe_winsys base;
+    struct r300_winsys_screen base;
+
+    struct pb_manager *kman;
 
-    /* Winsys private */
-    struct radeon_winsys_priv* priv;
+    struct pb_manager *mman;
 
     /* PCI ID */
     uint32_t pci_id;
@@ -56,71 +55,27 @@ struct radeon_winsys {
     /* VRAM size. */
     uint32_t vram_size;
 
-    /* Create a buffer from a winsys handle. */
-    struct pipe_buffer *(*buffer_from_handle)(struct radeon_winsys *winsys,
-                                              struct pipe_screen *screen,
-                                              struct winsys_handle *whandle,
-                                              unsigned *stride);
-
-    /* Get the handle from a buffer. */
-    boolean (*buffer_get_handle)(struct radeon_winsys *winsys,
-                                 struct pipe_buffer *buffer,
-                                 unsigned stride,
-                                 struct winsys_handle *whandle);
-
-    /* Add a pipe_buffer to the list of buffer objects to validate. */
-    boolean (*add_buffer)(struct radeon_winsys* winsys,
-                          struct pipe_buffer* pbuffer,
-                          uint32_t rd,
-                          uint32_t wd);
-
-    /* Revalidate all currently setup pipe_buffers.
-     * Returns TRUE if a flush is required. */
-    boolean (*validate)(struct radeon_winsys* winsys);
-
-    /* Check to see if there's room for commands. */
-    boolean (*check_cs)(struct radeon_winsys* winsys, int size);
-
-    /* Start a command emit. */
-    void (*begin_cs)(struct radeon_winsys* winsys,
-                     int size,
-                     const char* file,
-                     const char* function,
-                     int line);
-
-    /* Write a dword to the command buffer. */
-    void (*write_cs_dword)(struct radeon_winsys* winsys, uint32_t dword);
-
-    /* Write a relocated dword to the command buffer. */
-    void (*write_cs_reloc)(struct radeon_winsys* winsys,
-                           struct pipe_buffer* bo,
-                           uint32_t rd,
-                           uint32_t wd,
-                           uint32_t flags);
-
-    /* Finish a command emit. */
-    void (*end_cs)(struct radeon_winsys* winsys,
-                   const char* file,
-                   const char* function,
-                   int line);
-
-    /* Flush the CS. */
-    void (*flush_cs)(struct radeon_winsys* winsys);
-
-    /* winsys flush - callback from winsys when flush required */
-    void (*set_flush_cb)(struct radeon_winsys *winsys,
-			 void (*flush_cb)(void *), void *data);
-
-    void (*reset_bos)(struct radeon_winsys *winsys);
-
-    void (*buffer_set_tiling)(struct radeon_winsys* winsys,
-                              struct pipe_buffer* buffer,
-                              uint32_t pitch,
-                              boolean microtiled,
-                              boolean macrotiled);
-
-    boolean (*is_buffer_referenced)(struct radeon_winsys *winsys,
-                                    struct pipe_buffer *buffer);
+    /* DRM FD */
+    int fd;
+
+    /* Radeon BO manager. */
+    struct radeon_bo_manager *bom;
+
+    /* Radeon CS manager. */
+    struct radeon_cs_manager *csm;
+
+    /* Current CS. */
+    struct radeon_cs *cs;
+
+    /* Flush CB */
+    void (*flush_cb)(void *);
+    void *flush_data;
 };
 
+static INLINE struct radeon_libdrm_winsys *
+radeon_winsys_screen(struct r300_winsys_screen *base)
+{
+  return (struct radeon_libdrm_winsys *)base;
+}
+
 #endif