Revert "r300g: rebuild winsys/pipe buffer handling and add buffer map"

This reverts commit fff5be8e7b4557c221f2425dcafc2e7cbbba76ba.

Probably went too soon with this, dileX reported OA not working for him
it works here fine, but the optimisations I wanted aren't working properly
yet so I'll fix that now.

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

9 files changed, 246 insertions, 647 deletions

diff --git a/src/gallium/winsys/drm/i965/gem/i965_drm_winsys.h b/src/gallium/winsys/drm/i965/gem/i965_drm_winsys.h
index b36680eb66..c6a7d4a8c5 100644
--- a/src/gallium/winsys/drm/i965/gem/i965_drm_winsys.h
+++ b/src/gallium/winsys/drm/i965/gem/i965_drm_winsys.h
@@ -32,6 +32,8 @@ i965_libdrm_winsys(struct brw_winsys_screen *iws)
    return (struct i965_libdrm_winsys *)iws;
 }
 
+struct i965_libdrm_winsys *i965_libdrm_winsys_create(int fd, unsigned pci_id);
+
 void i965_libdrm_winsys_init_buffer_functions(struct i965_libdrm_winsys *idws);
 
 
diff --git a/src/gallium/winsys/drm/radeon/core/Makefile b/src/gallium/winsys/drm/radeon/core/Makefile
index 13bbbf730d..860cbb6dbf 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_drm_buffer.c \
+	radeon_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 8e0274e33d..f1c8fc2a3b 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_buffer.h
@@ -32,11 +32,11 @@
 
 #include <stdio.h>
 
+#include "util/u_simple_screen.h"
 #include "pipe/p_defines.h"
 #include "util/u_inlines.h"
 
 #include "pipebuffer/pb_buffer.h"
-#include "pipebuffer/pb_bufmgr.h"
 
 #include "util/u_memory.h"
 
@@ -47,41 +47,41 @@
 
 #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
 
-static INLINE struct pb_buffer *
-radeon_pb_buffer(struct r300_winsys_buffer *buffer)
-{
-    return (struct pb_buffer *)buffer;
-}
+struct radeon_winsys_priv {
+    /* DRM FD */
+    int fd;
 
-static INLINE struct r300_winsys_buffer *
-radeon_libdrm_winsys_buffer(struct pb_buffer *buffer)
-{
-    return (struct r300_winsys_buffer *)buffer;
-}
+    /* Radeon BO manager. */
+    struct radeon_bo_manager* bom;
 
-struct pb_manager *
-radeon_drm_bufmgr_create(struct radeon_libdrm_winsys *rws);
+    /* Radeon CS manager. */
+    struct radeon_cs_manager* csm;
 
-boolean radeon_drm_bufmgr_add_buffer(struct pb_buffer *_buf,
-				     uint32_t rd, uint32_t wd);
+    /* Current CS. */
+    struct radeon_cs* cs;
 
+    /* Flush CB */
+    void (*flush_cb)(void *);
+    void *flush_data;
+};
 
-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);
-
-boolean radeon_drm_bufmgr_shared_handle_from_buffer(struct pb_buffer *_buf,
-						    uint32_t *handle);
-uint32_t radeon_drm_bufmgr_handle_from_buffer(struct pb_buffer *_buf);
-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);
+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
 #endif
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm.c b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
index f886fda2f2..0c0e118ba3 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.c
@@ -31,22 +31,8 @@
 
 #include "radeon_drm.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_libdrm_winsys* winsys)
+static void do_ioctls(int fd, struct radeon_winsys* winsys)
 {
     struct drm_radeon_gem_info gem_info = {0};
     struct drm_radeon_info info = {0};
@@ -137,26 +123,62 @@ struct pipe_screen* radeon_create_screen(struct drm_api* api,
                                          int drmFB,
                                          struct drm_create_screen_arg *arg)
 {
-    struct radeon_libdrm_winsys* rws; 
-
-    rws = radeon_winsys_create(drmFB);
-    if (!rws)
-	return NULL;
-
-    do_ioctls(drmFB, rws);
+    struct radeon_winsys* rwinsys = radeon_pipe_winsys(drmFB);
+    do_ioctls(drmFB, rwinsys);
 
     /* The state tracker can organize a softpipe fallback if no hw
      * driver is found.
      */
-    if (is_r3xx(rws->pci_id)) {
-        radeon_setup_winsys(drmFB, rws);
-        return r300_create_screen(&rws->base);
+    if (is_r3xx(rwinsys->pci_id)) {
+        radeon_setup_winsys(drmFB, rwinsys);
+        return r300_create_screen(rwinsys);
     } else {
-        FREE(rws);
+        FREE(rwinsys);
         return NULL;
     }
 }
 
+
+boolean radeon_buffer_from_texture(struct drm_api* api,
+                                   struct pipe_screen* screen,
+                                   struct pipe_texture* texture,
+                                   struct pipe_buffer** buffer,
+                                   unsigned* stride)
+{
+    /* XXX fix this */
+    return r300_get_texture_buffer(screen, texture, buffer, stride);
+}
+
+/* Create a buffer from a handle. */
+/* XXX what's up with name? */
+struct pipe_buffer* radeon_buffer_from_handle(struct drm_api* api,
+                                              struct pipe_screen* screen,
+                                              const char* name,
+                                              unsigned handle)
+{
+    struct radeon_bo_manager* bom =
+        ((struct radeon_winsys*)screen->winsys)->priv->bom;
+    struct radeon_pipe_buffer* radeon_buffer;
+    struct radeon_bo* bo = NULL;
+
+    bo = radeon_bo_open(bom, handle, 0, 0, 0, 0);
+    if (bo == NULL) {
+        return NULL;
+    }
+
+    radeon_buffer = CALLOC_STRUCT(radeon_pipe_buffer);
+    if (radeon_buffer == NULL) {
+        radeon_bo_unref(bo);
+        return NULL;
+    }
+
+    pipe_reference_init(&radeon_buffer->base.reference, 1);
+    radeon_buffer->base.screen = screen;
+    radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL;
+    radeon_buffer->bo = bo;
+    return &radeon_buffer->base;
+}
+
 static struct pipe_texture*
 radeon_texture_from_shared_handle(struct drm_api *api,
                                   struct pipe_screen *screen,
@@ -165,20 +187,18 @@ radeon_texture_from_shared_handle(struct drm_api *api,
                                   unsigned stride,
                                   unsigned handle)
 {
-    struct pb_buffer *_buf;
-    struct r300_winsys_buffer *buf;
+    struct pipe_buffer *buffer;
     struct pipe_texture *blanket;
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(r300_winsys_screen(screen));
 
-    _buf = radeon_drm_bufmgr_create_buffer_from_handle(ws->kman, handle);
-    if (!_buf) {
-	return NULL;
+    buffer = radeon_buffer_from_handle(api, screen, name, handle);
+    if (!buffer) {
+        return NULL;
     }
 
-    buf = radeon_libdrm_winsys_buffer(_buf);
-    blanket = r300_texture_blanket_winsys_buffer(screen, templ, &stride, buf);
+    blanket = screen->texture_blanket(screen, templ, &stride, buffer);
+
+    pipe_buffer_reference(&buffer, NULL);
 
-    pb_reference(&_buf, NULL);
     return blanket;
 }
 
@@ -188,14 +208,34 @@ static boolean radeon_shared_handle_from_texture(struct drm_api *api,
                                                  unsigned *stride,
                                                  unsigned *handle)
 {
-    struct r300_winsys_buffer *radeon_buffer;
-    struct pb_buffer *_buf;
-    if (!r300_get_texture_buffer(screen, texture, &radeon_buffer, stride)) {
+    int retval, fd;
+    struct drm_gem_flink flink;
+    struct radeon_pipe_buffer* radeon_buffer;
+    struct pipe_buffer *buffer = NULL;
+
+    if (!radeon_buffer_from_texture(api, screen, texture, &buffer, stride)) {
         return FALSE;
     }
 
-    _buf = radeon_pb_buffer(radeon_buffer);
-    return radeon_drm_bufmgr_shared_handle_from_buffer(_buf, handle);
+    radeon_buffer = (struct radeon_pipe_buffer*)buffer;
+    if (!radeon_buffer->flinked) {
+        fd = ((struct radeon_winsys*)screen->winsys)->priv->fd;
+
+        flink.handle = radeon_buffer->bo->handle;
+
+        retval = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink);
+        if (retval) {
+            debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
+                    retval);
+            return FALSE;
+        }
+
+        radeon_buffer->flink = flink.name;
+        radeon_buffer->flinked = TRUE;
+    }
+
+    *handle = radeon_buffer->flink;
+    return TRUE;
 }
 
 static boolean radeon_local_handle_from_texture(struct drm_api *api,
@@ -204,18 +244,16 @@ static boolean radeon_local_handle_from_texture(struct drm_api *api,
                                                 unsigned *stride,
                                                 unsigned *handle)
 {
-    struct r300_winsys_buffer *radeon_buffer;
-    struct pb_buffer *_buf;
-
-    if (!r300_get_texture_buffer(screen, texture, &radeon_buffer, stride)) {
+    struct pipe_buffer *buffer = NULL;
+    if (!radeon_buffer_from_texture(api, screen, texture, &buffer, stride)) {
         return FALSE;
     }
 
-    _buf = radeon_pb_buffer(radeon_buffer);
-    *handle = radeon_drm_bufmgr_handle_from_buffer(_buf);
+    *handle = ((struct radeon_pipe_buffer*)buffer)->bo->handle;
+
+    pipe_buffer_reference(&buffer, NULL);
 
-    pb_reference(&_buf, NULL);
-    return true;
+    return TRUE;
 }
 
 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 2f55061330..8d74cbafc2 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_drm.h
@@ -59,6 +59,11 @@ boolean radeon_buffer_from_texture(struct drm_api* api,
                                    struct pipe_buffer** buffer,
                                    unsigned* stride);
 
+struct pipe_buffer* radeon_buffer_from_handle(struct drm_api* api,
+                                              struct pipe_screen* screen,
+                                              const char* name,
+                                              unsigned handle);
+
 boolean radeon_handle_from_buffer(struct drm_api* api,
                                   struct pipe_screen* screen,
                                   struct pipe_buffer* buffer,
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c b/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c
deleted file mode 100644
index 5f2fd2d7fc..0000000000
--- a/src/gallium/winsys/drm/radeon/core/radeon_drm_buffer.c
+++ /dev/null
@@ -1,361 +0,0 @@
-
-#include "radeon_drm.h"
-#include "radeon_bo_gem.h"
-#include "radeon_cs_gem.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 (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 (buf->mapped)
-	return buf->bo->ptr;
-
-    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;
-
-    //    fprintf(stderr,"hand %p : %d\n", &buf->base, handle);
-    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;
-
-    //    fprintf(stderr,"%p : %d\n", &buf->base, size);
-    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;
-}
-
-uint32_t radeon_drm_bufmgr_handle_from_buffer(struct pb_buffer *_buf)
-{
-    struct radeon_drm_buffer *buf = radeon_drm_buffer(_buf);
-
-    return buf->bo->handle;
-}
-
-boolean radeon_drm_bufmgr_shared_handle_from_buffer(struct pb_buffer *_buf,
-						     uint32_t *handle)
-{
-    struct radeon_drm_buffer *buf = radeon_drm_buffer(_buf);
-    struct drm_gem_flink flink;
-    int retval, fd;
-    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;
-    }
-    *handle = buf->flink;
-    return TRUE;
-}
-
-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;
-}
-
-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);
-    }
-}
-
-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 997abb8f5c..d759beaba1 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_r300.c
+++ b/src/gallium/winsys/drm/radeon/core/radeon_r300.c
@@ -22,104 +22,29 @@
 
 #include "radeon_r300.h"
 
-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 if (usage == PIPE_BUFFER_USAGE_VERTEX ||
-	     usage == PIPE_BUFFER_USAGE_INDEX)
-        provider = ws->cman;
-    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, 0);
-}
-
-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 void radeon_set_flush_cb(struct r300_winsys_screen *rws,
+static void radeon_set_flush_cb(struct radeon_winsys *winsys,
                                 void (*flush_cb)(void *),
                                 void *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);
+    winsys->priv->flush_cb = flush_cb;
+    winsys->priv->flush_data = data;
+    radeon_cs_space_set_flush(winsys->priv->cs, flush_cb, data);
 }
 
-static boolean radeon_add_buffer(struct r300_winsys_screen *rws,
-                                 struct r300_winsys_buffer *buf,
+static boolean radeon_add_buffer(struct radeon_winsys* winsys,
+                                 struct pipe_buffer* pbuffer,
                                  uint32_t rd,
                                  uint32_t wd)
 {
-    struct pb_buffer *_buf = radeon_pb_buffer(buf);
+    struct radeon_bo* bo = ((struct radeon_pipe_buffer*)pbuffer)->bo;
 
-    return radeon_drm_bufmgr_add_buffer(_buf, rd, wd);
+    radeon_cs_space_add_persistent_bo(winsys->priv->cs, bo, rd, wd);
+    return TRUE;
 }
 
-static boolean radeon_validate(struct r300_winsys_screen *rws)
+static boolean radeon_validate(struct radeon_winsys* winsys)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    if (radeon_cs_space_check(ws->cs) < 0) {
+    if (radeon_cs_space_check(winsys->priv->cs) < 0) {
         return FALSE;
     }
 
@@ -127,146 +52,108 @@ static boolean radeon_validate(struct r300_winsys_screen *rws)
     return TRUE;
 }
 
-static boolean radeon_check_cs(struct r300_winsys_screen *rws, int size)
+static boolean radeon_check_cs(struct radeon_winsys* winsys, int size)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    struct radeon_cs *cs = ws->cs;
+    struct radeon_cs* cs = winsys->priv->cs;
 
-    return radeon_validate(rws) && cs->cdw + size <= cs->ndw;
+    return radeon_validate(winsys) && cs->cdw + size <= cs->ndw;
 }
 
-static void radeon_begin_cs(struct r300_winsys_screen *rws,
+static void radeon_begin_cs(struct radeon_winsys* winsys,
                             int size,
                             const char* file,
                             const char* function,
                             int line)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    radeon_cs_begin(ws->cs, size, file, function, line);
+    radeon_cs_begin(winsys->priv->cs, size, file, function, line);
 }
 
-static void radeon_write_cs_dword(struct r300_winsys_screen *rws,
+static void radeon_write_cs_dword(struct radeon_winsys* winsys,
                                   uint32_t dword)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    radeon_cs_write_dword(ws->cs, dword);
+    radeon_cs_write_dword(winsys->priv->cs, dword);
 }
 
-static void radeon_write_cs_reloc(struct r300_winsys_screen *rws,
-                                  struct r300_winsys_buffer *buf,
+static void radeon_write_cs_reloc(struct radeon_winsys* winsys,
+                                  struct pipe_buffer* pbuffer,
                                   uint32_t rd,
                                   uint32_t wd,
                                   uint32_t flags)
 {
-    struct pb_buffer *_buf = radeon_pb_buffer(buf);
-    radeon_drm_bufmgr_write_reloc(_buf, rd, wd, 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);
+    }
 }
 
-static void radeon_reset_bos(struct r300_winsys_screen *rws)
+static void radeon_reset_bos(struct radeon_winsys *winsys)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    radeon_cs_space_reset_bos(ws->cs);
+    radeon_cs_space_reset_bos(winsys->priv->cs);
 }
 
-static void radeon_end_cs(struct r300_winsys_screen *rws,
+static void radeon_end_cs(struct radeon_winsys* winsys,
                           const char* file,
                           const char* function,
                           int line)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
-    radeon_cs_end(ws->cs, file, function, line);
+    radeon_cs_end(winsys->priv->cs, file, function, line);
 }
 
-static void radeon_flush_cs(struct r300_winsys_screen *rws)
+static void radeon_flush_cs(struct radeon_winsys* winsys)
 {
-    struct radeon_libdrm_winsys *ws = radeon_winsys_screen(rws);
     int retval;
 
     /* Don't flush a zero-sized CS. */
-    if (!ws->cs->cdw) {
+    if (!winsys->priv->cs->cdw) {
         return;
     }
 
-    radeon_drm_bufmgr_flush_maps(ws->kman);
     /* Emit the CS. */
-    retval = radeon_cs_emit(ws->cs);
+    retval = radeon_cs_emit(winsys->priv->cs);
     if (retval) {
         debug_printf("radeon: Bad CS, dumping...\n");
-        radeon_cs_print(ws->cs, stderr);
+        radeon_cs_print(winsys->priv->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(ws->cs);
-}
-
-static uint32_t radeon_get_value(struct r300_winsys_screen *rws,
-			     enum r300_value_id id)
-{
-    struct radeon_libdrm_winsys *ws = (struct radeon_libdrm_winsys *)rws;
-
-    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->cman->destroy(ws->cman);
-    ws->kman->destroy(ws->kman);
-    ws->mman->destroy(ws->mman);
-
-    radeon_bo_manager_gem_dtor(ws->bom);
-    radeon_cs_manager_gem_dtor(ws->csm);
+    radeon_cs_erase(winsys->priv->cs);
 }
 
 void
-radeon_setup_winsys(int fd, struct radeon_libdrm_winsys* ws)
+radeon_setup_winsys(int fd, struct radeon_winsys* winsys)
 {
-    ws->csm = radeon_cs_manager_gem_ctor(fd);
-
-    ws->bom = radeon_bo_manager_gem_ctor(fd);
-    ws->kman = radeon_drm_bufmgr_create(ws);
+    struct radeon_winsys_priv* priv = winsys->priv;
 
-    ws->cman = pb_cache_manager_create(ws->kman, 100000);
-    ws->mman = pb_malloc_bufmgr_create();
+    priv->csm = radeon_cs_manager_gem_ctor(fd);
 
     /* Size limit on IBs is 64 kibibytes. */
-    ws->cs = radeon_cs_create(ws->csm, 1024 * 64 / 4);
-    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;
+    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;
 }
diff --git a/src/gallium/winsys/drm/radeon/core/radeon_r300.h b/src/gallium/winsys/drm/radeon/core/radeon_r300.h
index 82a8aad715..cfbdb30266 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_r300.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_r300.h
@@ -28,12 +28,12 @@
 #include <stdlib.h>
 #include "drm.h"
 #include "radeon_drm.h"
-#include "radeon_bo_gem.h"
 #include "radeon_cs_gem.h"
 
-#include "radeon_winsys.h"
+#include "r300_winsys.h"
+
 #include "radeon_buffer.h"
 
-void radeon_setup_winsys(int fd, struct radeon_libdrm_winsys* winsys);
+void radeon_setup_winsys(int fd, struct radeon_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 c8e725cff0..4901080ca7 100644
--- a/src/gallium/winsys/drm/radeon/core/radeon_winsys.h
+++ b/src/gallium/winsys/drm/radeon/core/radeon_winsys.h
@@ -30,17 +30,16 @@
 #ifndef RADEON_WINSYS_H
 #define RADEON_WINSYS_H
 
-#include "r300_winsys.h"
+#include "util/u_simple_screen.h"
 
-struct radeon_libdrm_winsys {
-    /* Parent class. */
-    struct r300_winsys_screen base;
-
-    struct pb_manager *kman;
+struct radeon_winsys_priv;
 
-    struct pb_manager *mman;
+struct radeon_winsys {
+    /* Parent class. */
+    struct pipe_winsys base;
 
-    struct pb_manager *cman;
+    /* Winsys private */
+    struct radeon_winsys_priv* priv;
 
     /* PCI ID */
     uint32_t pci_id;
@@ -57,27 +56,56 @@ struct radeon_libdrm_winsys {
     /* VRAM size. */
     uint32_t vram_size;
 
-    /* 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;
+    /* 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);
 };
 
-static INLINE struct radeon_libdrm_winsys *
-radeon_winsys_screen(struct r300_winsys_screen *base)
-{
-  return (struct radeon_libdrm_winsys *)base;
-}
-
 #endif