amd: initial winsys

9 files changed, 1130 insertions, 0 deletions

diff --git a/src/gallium/winsys/drm/amd/Makefile b/src/gallium/winsys/drm/amd/Makefile
new file mode 100644
index 00000000000..a1b5602c055
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/Makefile
@@ -0,0 +1,28 @@
+
+TOP = ../../../../..
+include $(TOP)/configs/current
+
+LIBNAME = amd_dri.so
+
+MINIGLX_SOURCES =
+
+PIPE_DRIVERS = \
+	$(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a
+
+DRIVER_SOURCES = \
+	amd_buffer.c \
+	amd_context.c \
+	amd_screen.c \
+	amd_winsys_softpipe.c
+
+C_SOURCES = \
+	$(COMMON_GALLIUM_SOURCES) \
+	$(DRIVER_SOURCES)
+
+ASM_SOURCES = 
+
+include ../Makefile.template
+
+DRI_LIB_DEPS += -ldrm-radeon
+
+symlinks:
diff --git a/src/gallium/winsys/drm/amd/amd_buffer.c b/src/gallium/winsys/drm/amd/amd_buffer.c
new file mode 100644
index 00000000000..3d400243a55
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_buffer.c
@@ -0,0 +1,240 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#include <stdio.h>
+#include "dri_util.h"
+#include "state_tracker/st_public.h"
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "amd_buffer.h"
+#include "amd_screen.h"
+#include "amd_context.h"
+#include "radeon_bo.h"
+#include "radeon_drm.h"
+
+static const char *amd_get_name(struct pipe_winsys *ws)
+{
+    return "AMD/DRI2";
+}
+
+static struct pipe_buffer *amd_buffer_create(struct pipe_winsys *ws,
+                                             unsigned alignment,
+                                             unsigned usage,
+                                             unsigned size)
+{
+    struct amd_pipe_winsys *amd_ws = (struct amd_pipe_winsys *)ws;
+    struct amd_pipe_buffer *amd_buffer;
+    uint32_t domain;
+
+    amd_buffer = calloc(1, sizeof(*amd_buffer));
+    if (amd_buffer == NULL) {
+        return NULL;
+    }
+    amd_buffer->base.refcount = 1;
+    amd_buffer->base.alignment = alignment;
+    amd_buffer->base.usage = usage;
+    amd_buffer->base.size = size;
+
+    domain = 0;
+
+    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;
+    }
+    amd_buffer->bo = radeon_bo_open(amd_ws->amd_screen->bom, 0,
+                                    size, alignment, domain, 0);
+    if (amd_buffer->bo == NULL) {
+        free(amd_buffer);
+    }
+    return &amd_buffer->base;
+}
+
+static struct pipe_buffer *amd_buffer_user_create(struct pipe_winsys *ws,
+                                                  void *ptr,
+                                                  unsigned bytes)
+{
+    struct amd_pipe_buffer *amd_buffer;
+
+    amd_buffer = (struct amd_pipe_buffer*)amd_buffer_create(ws, 0, 0, bytes);
+    if (amd_buffer == NULL) {
+        return NULL;
+    }
+    radeon_bo_map(amd_buffer->bo, 1);
+    memcpy(amd_buffer->bo->ptr, ptr, bytes);
+    radeon_bo_unmap(amd_buffer->bo);
+    return &amd_buffer->base;
+}
+
+static void amd_buffer_del(struct pipe_winsys *ws, struct pipe_buffer *buffer)
+{
+    struct amd_pipe_buffer *amd_buffer = (struct amd_pipe_buffer*)buffer;
+
+    radeon_bo_unref(amd_buffer->bo);
+    free(amd_buffer);
+}
+
+static void *amd_buffer_map(struct pipe_winsys *ws,
+                            struct pipe_buffer *buffer,
+                            unsigned flags)
+{
+    struct amd_pipe_buffer *amd_buffer = (struct amd_pipe_buffer*)buffer;
+    int write = 0;
+
+    if (flags & PIPE_BUFFER_USAGE_CPU_WRITE) {
+        write = 1;
+    }
+    if (radeon_bo_map(amd_buffer->bo, write))
+        return NULL;
+    return amd_buffer->bo->ptr;
+}
+
+static void amd_buffer_unmap(struct pipe_winsys *ws, struct pipe_buffer *buffer)
+{
+    struct amd_pipe_buffer *amd_buffer = (struct amd_pipe_buffer*)buffer;
+
+    radeon_bo_unmap(amd_buffer->bo);
+}
+
+static void amd_fence_reference(struct pipe_winsys *ws,
+                                struct pipe_fence_handle **ptr,
+                                struct pipe_fence_handle *pfence)
+{
+}
+
+static int amd_fence_signalled(struct pipe_winsys *ws,
+                               struct pipe_fence_handle *pfence,
+                               unsigned flag)
+{
+    return 1;
+}
+
+static int amd_fence_finish(struct pipe_winsys *ws,
+                            struct pipe_fence_handle *pfence,
+                            unsigned flag)
+{
+    return 0;
+}
+
+static void amd_flush_frontbuffer(struct pipe_winsys *pipe_winsys,
+                                  struct pipe_surface *pipe_surface,
+                                  void *context_private)
+{
+    /* TODO: call dri2CopyRegion */
+}
+
+struct pipe_winsys *amd_pipe_winsys(struct amd_screen *amd_screen)
+{
+    struct amd_pipe_winsys *amd_ws;
+
+    amd_ws = calloc(1, sizeof(struct amd_pipe_winsys));
+    if (amd_ws == NULL) {
+        return NULL;
+    }
+    amd_ws->amd_screen = amd_screen;
+
+    amd_ws->winsys.flush_frontbuffer = amd_flush_frontbuffer;
+
+    amd_ws->winsys.buffer_create = amd_buffer_create;
+    amd_ws->winsys.buffer_destroy = amd_buffer_del;
+    amd_ws->winsys.user_buffer_create = amd_buffer_user_create;
+    amd_ws->winsys.buffer_map = amd_buffer_map;
+    amd_ws->winsys.buffer_unmap = amd_buffer_unmap;
+
+    amd_ws->winsys.fence_reference = amd_fence_reference;
+    amd_ws->winsys.fence_signalled = amd_fence_signalled;
+    amd_ws->winsys.fence_finish = amd_fence_finish;
+
+    amd_ws->winsys.get_name = amd_get_name;
+
+    return &amd_ws->winsys;
+}
+
+static struct pipe_buffer *amd_buffer_from_handle(struct amd_screen *amd_screen,
+                                                  uint32_t handle)
+{
+    struct amd_pipe_buffer *amd_buffer;
+    struct radeon_bo *bo = NULL;
+
+    bo = radeon_bo_open(amd_screen->bom, handle, 0, 0, 0, 0);
+    if (bo == NULL) {
+        return NULL;
+    }
+    amd_buffer = calloc(1, sizeof(struct amd_pipe_buffer));
+    if (amd_buffer == NULL) {
+        radeon_bo_unref(bo);
+        return NULL;
+    }
+    amd_buffer->base.refcount = 1;
+    amd_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL;
+    amd_buffer->bo = bo;
+    return &amd_buffer->base;
+}
+
+struct pipe_surface *amd_surface_from_handle(struct amd_context *amd_context,
+                                             uint32_t handle,
+                                             enum pipe_format format,
+                                             int w, int h, int pitch)
+{
+    struct pipe_screen *pipe_screen = amd_context->pipe_screen;
+    struct pipe_winsys *pipe_winsys = amd_context->pipe_winsys;
+    struct pipe_texture tmpl;
+    struct pipe_surface *ps;
+    struct pipe_texture *pt;
+    struct pipe_buffer *pb;
+
+    pb = amd_buffer_from_handle(amd_context->amd_screen, handle);
+    if (pb == NULL) {
+        return NULL;
+    }
+    memset(&tmpl, 0, sizeof(tmpl));
+    tmpl.tex_usage = PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
+    tmpl.target = PIPE_TEXTURE_2D;
+    tmpl.width[0] = w;
+    tmpl.height[0] = h;
+    tmpl.depth[0] = 1;
+    tmpl.format = format;
+    pf_get_block(tmpl.format, &tmpl.block);
+    tmpl.nblocksx[0] = pf_get_nblocksx(&tmpl.block, w);
+    tmpl.nblocksy[0] = pf_get_nblocksy(&tmpl.block, h);
+
+    pt = pipe_screen->texture_blanket(pipe_screen, &tmpl, &pitch, pb);
+    if (pt == NULL) {
+        winsys_buffer_reference(pipe_winsys, &pb, NULL);
+    }
+    ps = pipe_screen->get_tex_surface(pipe_screen, pt, 0, 0, 0,
+                                      PIPE_BUFFER_USAGE_GPU_WRITE);
+    return ps;
+}
diff --git a/src/gallium/winsys/drm/amd/amd_buffer.h b/src/gallium/winsys/drm/amd/amd_buffer.h
new file mode 100644
index 00000000000..d67967ebea7
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_buffer.h
@@ -0,0 +1,54 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#ifndef AMD_BUFFER_H
+#define AMD_BUFFER_H
+
+#include "pipe/p_winsys.h"
+#include "amd_screen.h"
+#include "amd_context.h"
+#include "radeon_bo.h"
+
+struct amd_pipe_buffer {
+    struct pipe_buffer  base;
+    struct radeon_bo    *bo;
+};
+
+struct amd_pipe_winsys {
+    struct pipe_winsys      winsys;
+    struct amd_screen       *amd_screen;
+};
+
+struct pipe_winsys *amd_pipe_winsys(struct amd_screen *amd_screen);
+struct pipe_surface *amd_surface_from_handle(struct amd_context *amd_context,
+                                             uint32_t handle,
+                                             enum pipe_format format,
+                                             int w, int h, int pitch);
+
+#endif
diff --git a/src/gallium/winsys/drm/amd/amd_context.c b/src/gallium/winsys/drm/amd/amd_context.c
new file mode 100644
index 00000000000..228bd826d35
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_context.c
@@ -0,0 +1,298 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#include <stdio.h>
+#include "dri_util.h"
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "amd_screen.h"
+#include "amd_context.h"
+#include "amd_buffer.h"
+#include "amd_winsys_softpipe.h"
+
+#define need_GL_ARB_fragment_program
+#define need_GL_ARB_multisample
+#define need_GL_ARB_point_parameters
+#define need_GL_ARB_shader_objects
+#define need_GL_ARB_texture_compression
+#define need_GL_ARB_vertex_buffer_object
+#define need_GL_ARB_vertex_program
+#define need_GL_ARB_vertex_shader
+#define need_GL_EXT_blend_color
+#define need_GL_EXT_blend_equation_separate
+#define need_GL_EXT_blend_func_separate
+#define need_GL_EXT_blend_minmax
+#define need_GL_EXT_cull_vertex
+#define need_GL_EXT_compiled_vertex_array
+#define need_GL_EXT_fog_coord
+#define need_GL_EXT_framebuffer_object
+#define need_GL_EXT_multi_draw_arrays
+#define need_GL_EXT_secondary_color
+#define need_GL_VERSION_2_0
+#define need_GL_VERSION_2_1
+#include "extension_helper.h"
+
+/**
+ * Extension strings exported by the amd driver.
+ */
+const struct dri_extension amd_card_extensions[] = {
+   {"GL_ARB_multitexture", NULL},
+   {"GL_ARB_texture_border_clamp", NULL},
+   {"GL_ARB_texture_rectangle", NULL},
+   {"GL_ARB_pixel_buffer_object", NULL},
+   {"GL_ARB_point_parameters", GL_ARB_point_parameters_functions},
+   {"GL_ARB_shader_objects", GL_ARB_shader_objects_functions},
+   {"GL_ARB_shading_language_100", GL_VERSION_2_0_functions},
+   {"GL_ARB_shading_language_120", GL_VERSION_2_1_functions},
+   {"GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions},
+   {"GL_ARB_vertex_program", GL_ARB_vertex_program_functions},
+   {"GL_ARB_vertex_shader", GL_ARB_vertex_shader_functions},
+   {"GL_EXT_blend_color", GL_EXT_blend_color_functions},
+   {"GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions},
+   {"GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions},
+   {"GL_EXT_blend_minmax", GL_EXT_blend_minmax_functions},
+   {"GL_EXT_blend_subtract", NULL},
+   {"GL_EXT_compiled_vertex_array", GL_EXT_compiled_vertex_array_functions},
+   {"GL_EXT_cull_vertex", GL_EXT_cull_vertex_functions},
+   {"GL_EXT_fog_coord", GL_EXT_fog_coord_functions},
+   {"GL_EXT_framebuffer_object", GL_EXT_framebuffer_object_functions},
+   {"GL_EXT_multi_draw_arrays", GL_EXT_multi_draw_arrays_functions},
+   {"GL_EXT_packed_depth_stencil", NULL},
+   {"GL_EXT_pixel_buffer_object", NULL},
+   {"GL_EXT_secondary_color", GL_EXT_secondary_color_functions},
+   {"GL_EXT_stencil_wrap", NULL},
+   {NULL, NULL}
+};
+
+static void amd_update_renderbuffers(__DRIcontext *dri_context,
+                                     __DRIdrawable *dri_drawable)
+{
+    struct amd_framebuffer *amd_fb;
+    struct amd_context *amd_context;
+    unsigned attachments[10];
+    __DRIbuffer *buffers;
+    __DRIscreen *screen;
+    int i, count;
+
+    amd_context = dri_context->driverPrivate;
+    screen = dri_drawable->driScreenPriv;
+    amd_fb = dri_drawable->driverPrivate;
+    for (count = 0, i = 0; count < 6; count++) {
+        if (amd_fb->attachments & (1 << count)) {
+            attachments[i++] = count;
+        }
+    }
+
+    buffers = (*screen->dri2.loader->getBuffers)(dri_drawable,
+                                                 &dri_drawable->w,
+                                                 &dri_drawable->h,
+                                                 attachments,
+                                                 i,
+                                                 &count,
+                                                 dri_drawable->loaderPrivate);
+    if (buffers == NULL) {
+        return;
+    }
+
+    /* set one cliprect to cover the whole dri_drawable */
+    dri_drawable->x = 0;
+    dri_drawable->y = 0;
+    dri_drawable->backX = 0;
+    dri_drawable->backY = 0;
+    dri_drawable->numClipRects = 1;
+    dri_drawable->pClipRects[0].x1 = 0;
+    dri_drawable->pClipRects[0].y1 = 0;
+    dri_drawable->pClipRects[0].x2 = dri_drawable->w;
+    dri_drawable->pClipRects[0].y2 = dri_drawable->h;
+    dri_drawable->numBackClipRects = 1;
+    dri_drawable->pBackClipRects[0].x1 = 0;
+    dri_drawable->pBackClipRects[0].y1 = 0;
+    dri_drawable->pBackClipRects[0].x2 = dri_drawable->w;
+    dri_drawable->pBackClipRects[0].y2 = dri_drawable->h;
+
+    for (i = 0; i < count; i++) {
+        struct pipe_surface *ps;
+        enum pipe_format format = 0;
+        int index = 0;
+
+        switch (buffers[i].attachment) {
+        case __DRI_BUFFER_FRONT_LEFT:
+            index = ST_SURFACE_FRONT_LEFT;
+            switch (buffers[i].cpp) {
+            case 4:
+                format = PIPE_FORMAT_A8R8G8B8_UNORM;
+                break;
+            case 2:
+                format = PIPE_FORMAT_R5G6B5_UNORM;
+                break;
+            default:
+                /* FIXME: error */
+                return;
+            }
+            break;
+        case __DRI_BUFFER_BACK_LEFT:
+            index = ST_SURFACE_BACK_LEFT;
+            switch (buffers[i].cpp) {
+            case 4:
+                format = PIPE_FORMAT_A8R8G8B8_UNORM;
+                break;
+            case 2:
+                format = PIPE_FORMAT_R5G6B5_UNORM;
+                break;
+            default:
+                /* FIXME: error */
+                return;
+            }
+            break;
+        case __DRI_BUFFER_STENCIL:
+        case __DRI_BUFFER_DEPTH:
+            index = ST_SURFACE_DEPTH;
+            switch (buffers[i].cpp) {
+            case 4:
+                format = PIPE_FORMAT_Z24S8_UNORM;
+                break;
+            case 2:
+                format = PIPE_FORMAT_Z16_UNORM;
+                break;
+            default:
+                /* FIXME: error */
+                return;
+            }
+            break;
+        case __DRI_BUFFER_ACCUM:
+        default:
+            fprintf(stderr,
+                    "unhandled buffer attach event, attacment type %d\n",
+                    buffers[i].attachment);
+            return;
+        }
+
+        ps = amd_surface_from_handle(amd_context,
+                                     buffers[i].name,
+                                     format,
+                                     dri_drawable->w,
+                                     dri_drawable->h,
+                                     buffers[i].pitch);
+        assert(ps);
+        st_set_framebuffer_surface(amd_fb->st_framebuffer, index, ps);
+    }
+    st_resize_framebuffer(amd_fb->st_framebuffer,
+                          dri_drawable->w,
+                          dri_drawable->h);
+}
+
+GLboolean amd_context_create(const __GLcontextModes *visual,
+                             __DRIcontextPrivate *dri_context,
+                             void *shared_context)
+{
+    __DRIscreenPrivate *dri_screen;
+    struct amd_context *amd_context;
+    struct amd_screen *amd_screen;
+    struct pipe_context *pipe;
+    struct st_context *shared_st_context = NULL;
+
+    dri_context->driverPrivate = NULL;
+    amd_context = calloc(1, sizeof(struct amd_context));
+    if (amd_context == NULL) {
+        return GL_FALSE;
+    }
+
+    if (shared_context) {
+        shared_st_context = ((struct amd_context*)shared_context)->st_context;
+    }
+
+    dri_screen = dri_context->driScreenPriv;
+    amd_screen = dri_screen->private;
+    amd_context->dri_screen = dri_screen;
+    amd_context->amd_screen = amd_screen;
+    amd_context->drm_fd = dri_screen->fd;
+
+    amd_context->pipe_winsys = amd_pipe_winsys(amd_screen);
+    if (amd_context->pipe_winsys == NULL) {
+        free(amd_context);
+        return GL_FALSE;
+    }
+
+    pipe = amd_create_softpipe(amd_context);
+    amd_context->st_context = st_create_context(pipe, visual,
+                                                shared_st_context);
+    driInitExtensions(amd_context->st_context->ctx,
+                      amd_card_extensions, GL_TRUE);
+    dri_context->driverPrivate = amd_context;
+    return GL_TRUE;
+}
+
+void amd_context_destroy(__DRIcontextPrivate *dri_context)
+{
+    struct amd_context *amd_context;
+
+    amd_context = dri_context->driverPrivate;
+    st_finish(amd_context->st_context);
+    st_destroy_context(amd_context->st_context);
+    free(amd_context);
+}
+
+GLboolean amd_context_bind(__DRIcontextPrivate *dri_context,
+                           __DRIdrawablePrivate *dri_drawable,
+                           __DRIdrawablePrivate *dri_readable)
+{
+    struct amd_framebuffer *drawable;
+    struct amd_framebuffer *readable;
+    struct amd_context *amd_context;
+
+    if (dri_context == NULL) {
+        st_make_current(NULL, NULL, NULL);
+        return GL_TRUE;
+    }
+
+    amd_context = dri_context->driverPrivate;
+    drawable = dri_drawable->driverPrivate;
+    readable = dri_readable->driverPrivate;
+    st_make_current(amd_context->st_context,
+                    drawable->st_framebuffer,
+                    readable->st_framebuffer);
+
+    amd_update_renderbuffers(dri_context, dri_drawable);
+    if (dri_drawable != dri_readable) {
+        amd_update_renderbuffers(dri_context, dri_readable);
+    }
+    return GL_TRUE;
+}
+
+GLboolean amd_context_unbind(__DRIcontextPrivate *dri_context)
+{
+    struct amd_context *amd_context;
+
+    amd_context = dri_context->driverPrivate;
+    st_flush(amd_context->st_context, PIPE_FLUSH_RENDER_CACHE, NULL);
+    return GL_TRUE;
+}
diff --git a/src/gallium/winsys/drm/amd/amd_context.h b/src/gallium/winsys/drm/amd/amd_context.h
new file mode 100644
index 00000000000..54a831f15a4
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_context.h
@@ -0,0 +1,68 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#ifndef AMD_CONTEXT_H
+#define AMD_CONTEXT_H
+
+#include "dri_util.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "amd_screen.h"
+
+struct amd_framebuffer {
+    struct st_framebuffer   *st_framebuffer;
+    unsigned                attachments;
+};
+
+struct amd_context {
+    /* st */
+    struct st_context       *st_context;
+    /* pipe */
+    struct pipe_screen      *pipe_screen;
+    struct pipe_winsys      *pipe_winsys;
+    /* DRI */
+    __DRIscreenPrivate      *dri_screen;
+    __DRIdrawablePrivate    *dri_drawable;
+    __DRIdrawablePrivate    *dri_readable;
+    /* DRM */
+    int                     drm_fd;
+   /* AMD */
+    struct amd_screen       *amd_screen;
+};
+
+GLboolean amd_context_create(const __GLcontextModes*,
+                             __DRIcontextPrivate*,
+                             void*);
+void amd_context_destroy(__DRIcontextPrivate*);
+GLboolean amd_context_bind(__DRIcontextPrivate*,
+                           __DRIdrawablePrivate*,
+                           __DRIdrawablePrivate*);
+GLboolean amd_context_unbind(__DRIcontextPrivate*);
+
+#endif
diff --git a/src/gallium/winsys/drm/amd/amd_screen.c b/src/gallium/winsys/drm/amd/amd_screen.c
new file mode 100644
index 00000000000..22d8973eb79
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_screen.c
@@ -0,0 +1,286 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#include <stdio.h>
+#include "pipe/p_screen.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_inlines.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "utils.h"
+#include "xf86drm.h"
+#include "drm.h"
+#include "dri_util.h"
+#include "amd_screen.h"
+#include "amd_context.h"
+#include "amd_buffer.h"
+#include "radeon_bo.h"
+#include "radeon_bo_gem.h"
+#include "radeon_drm.h"
+
+extern const struct dri_extension amd_card_extensions[];
+
+static const __DRIextension *amd_screen_extensions[] = {
+    &driReadDrawableExtension,
+    &driCopySubBufferExtension.base,
+    &driSwapControlExtension.base,
+    &driFrameTrackingExtension.base,
+    &driMediaStreamCounterExtension.base,
+    NULL
+};
+
+static __DRIconfig **amd_fill_in_modes(unsigned pixel_bits,
+                                       unsigned depth_bits,
+                                       GLboolean have_back_buffer)
+{
+    __DRIconfig **configs;
+    unsigned depth_buffer_factor;
+    unsigned back_buffer_factor;
+    unsigned num_modes;
+    GLenum fb_format;
+    GLenum fb_type;
+    uint8_t depth_bits_array[3];
+    uint8_t stencil_bits_array[3];
+    uint8_t msaa_samples_array[1];
+    /* TODO: pageflipping ? */
+    static const GLenum back_buffer_modes[] = {
+        GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+    };
+
+    stencil_bits_array[0] = 0;
+    stencil_bits_array[1] = 0;
+    if (depth_bits == 24) {
+        stencil_bits_array[2] = 8;
+        num_modes = 3;
+    }
+
+    depth_bits_array[0] = 0;
+    depth_bits_array[1] = depth_bits;
+    depth_bits_array[2] = depth_bits;
+    depth_buffer_factor = (depth_bits == 24) ? 3 : 2;
+
+    back_buffer_factor = (have_back_buffer) ? 3 : 1;
+
+    msaa_samples_array[0] = 0;
+
+    if (pixel_bits == 16) {
+        fb_format = GL_RGB;
+        fb_type = GL_UNSIGNED_SHORT_5_6_5;
+    } else {
+        fb_format = GL_BGRA;
+        fb_type = GL_UNSIGNED_INT_8_8_8_8_REV;
+    }
+
+    configs = (__DRIconfig **)driCreateConfigs(fb_format,
+                                               fb_type,
+                                               depth_bits_array,
+                                               stencil_bits_array,
+                                               depth_buffer_factor,
+                                               back_buffer_modes,
+                                               back_buffer_factor,
+                                               msaa_samples_array,
+                                               1);
+    if (configs == NULL) {
+        fprintf(stderr, "[%s:%u] Error creating FBConfig!\n",
+                __FILE__, __LINE__);
+        return NULL;
+    }
+    return configs;
+}
+
+static void amd_screen_destroy(__DRIscreenPrivate *dri_screen)
+{
+     struct amd_screen *amd_screen = (struct amd_screen*)dri_screen->private;
+
+     radeon_bo_manager_gem_dtor(amd_screen->bom); 
+     dri_screen = NULL;
+     free(amd_screen);
+}
+
+static const __DRIconfig **amd_screen_init(__DRIscreenPrivate *dri_screen)
+{
+    struct amd_screen *amd_screen;
+
+    /* Calling driInitExtensions here, with a NULL context pointer,
+     * does not actually enable the extensions.  It just makes sure
+     * that all the dispatch offsets for all the extensions that
+     * *might* be enables are known.  This is needed because the
+     * dispatch offsets need to be known when _mesa_context_create is
+     * called, but we can't enable the extensions until we have a
+     * context pointer.
+     *
+     * Hello chicken.  Hello egg.  How are you two today?
+     */
+    driInitExtensions(NULL, amd_card_extensions, GL_FALSE);
+
+    amd_screen = calloc(1, sizeof(struct amd_screen));
+    if (amd_screen == NULL) {
+        fprintf(stderr, "\nERROR!  Allocating private area failed\n");
+        return NULL;
+    }
+    dri_screen->private = (void*)amd_screen;
+    dri_screen->extensions = amd_screen_extensions;
+    amd_screen->dri_screen = dri_screen;
+
+    amd_screen->bom = radeon_bo_manager_gem_ctor(dri_screen->fd);
+    if (amd_screen->bom == NULL) {
+        amd_screen_destroy(dri_screen);
+        return NULL;
+    }
+
+    return driConcatConfigs(amd_fill_in_modes(16, 16, 1),
+                            amd_fill_in_modes(32, 24, 1));
+}
+
+static boolean amd_buffer_create(__DRIscreenPrivate *dri_screen,
+                                 __DRIdrawablePrivate *dri_drawable,
+                                 const __GLcontextModes *visual,
+                                 boolean is_pixmap)
+{
+    if (is_pixmap) {
+        /* TODO: implement ? */
+        return GL_FALSE;
+    } else {
+        enum pipe_format color_format, depth_format, stencil_format;
+        struct amd_framebuffer *amd_fb;
+
+        amd_fb = calloc(1, sizeof(struct amd_framebuffer));
+        if (amd_fb == NULL) {
+            return GL_FALSE;
+        }
+
+        switch (visual->redBits) {
+        case 5:
+            color_format = PIPE_FORMAT_R5G6B5_UNORM;
+            break;
+        default:
+            color_format = PIPE_FORMAT_A8R8G8B8_UNORM;
+            break;
+        }
+
+        switch (visual->depthBits) {
+        case 16:
+            depth_format = PIPE_FORMAT_Z16_UNORM;
+            break;
+        case 24:
+            depth_format = PIPE_FORMAT_S8Z24_UNORM;
+        default:
+            depth_format = PIPE_FORMAT_NONE;
+            break;
+        }
+
+        switch (visual->stencilBits) {
+        case 8:
+            /* force depth format */
+            depth_format = PIPE_FORMAT_S8Z24_UNORM;
+            stencil_format = PIPE_FORMAT_S8Z24_UNORM;
+            break;
+        default:
+            stencil_format = PIPE_FORMAT_NONE;
+            break;
+        }
+
+        amd_fb->st_framebuffer = st_create_framebuffer(visual,
+                                                       color_format,
+                                                       depth_format,
+                                                       stencil_format,
+                                                       dri_drawable->w,
+                                                       dri_drawable->h,
+                                                       (void*)amd_fb);
+        if (amd_fb->st_framebuffer == NULL) {
+            free(amd_fb);
+            return GL_FALSE;
+        }
+        dri_drawable->driverPrivate = (void *) amd_fb;
+
+        amd_fb->attachments = (1 << __DRI_BUFFER_FRONT_LEFT);
+        if (visual->doubleBufferMode) {
+            amd_fb->attachments |= (1 << __DRI_BUFFER_BACK_LEFT);
+        }
+        if (visual->depthBits || visual->stencilBits) {
+            amd_fb->attachments |= (1 << __DRI_BUFFER_DEPTH);
+        }
+
+        return GL_TRUE;
+    }
+}
+
+static void amd_buffer_destroy(__DRIdrawablePrivate * dri_drawable)
+{
+   struct amd_framebuffer *amd_fb;
+   
+   amd_fb = dri_drawable->driverPrivate;
+   assert(amd_fb->st_framebuffer);
+   st_unreference_framebuffer(amd_fb->st_framebuffer);
+   free(amd_fb);
+}
+
+static void amd_swap_buffers(__DRIdrawablePrivate *dri_drawable)
+{
+    struct amd_framebuffer *amd_fb;
+    struct pipe_surface *back_surf;
+
+    amd_fb = dri_drawable->driverPrivate;
+    assert(amd_fb);
+    assert(amd_fb->st_framebuffer);
+
+    back_surf = st_get_framebuffer_surface(amd_fb->st_framebuffer,
+                                           ST_SURFACE_BACK_LEFT);
+    if (back_surf) {
+        st_notify_swapbuffers(amd_fb->st_framebuffer);
+        /* TODO: do we want to do anythings ? */
+        st_notify_swapbuffers_complete(amd_fb->st_framebuffer);
+    }
+}
+
+/**
+ * Called via glXCopySubBufferMESA() to copy a subrect of the back
+ * buffer to the front buffer/screen.
+ */
+static void amd_copy_sub_buffer(__DRIdrawablePrivate *dri_drawable,
+                         int x, int y, int w, int h)
+{
+    /* TODO: ... */
+}
+
+const struct __DriverAPIRec driDriverAPI = {
+    .InitScreen           = NULL,
+    .DestroyScreen        = amd_screen_destroy,
+    .CreateContext        = amd_context_create,
+    .DestroyContext       = amd_context_destroy,
+    .CreateBuffer         = amd_buffer_create,
+    .DestroyBuffer        = amd_buffer_destroy,
+    .SwapBuffers          = amd_swap_buffers,
+    .MakeCurrent          = amd_context_bind,
+    .UnbindContext        = amd_context_unbind,
+    .CopySubBuffer        = amd_copy_sub_buffer,
+    .InitScreen2          = amd_screen_init,
+};
diff --git a/src/gallium/winsys/drm/amd/amd_screen.h b/src/gallium/winsys/drm/amd/amd_screen.h
new file mode 100644
index 00000000000..7f21fa477cd
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_screen.h
@@ -0,0 +1,42 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#ifndef AMD_SCREEN_H
+#define AMD_SCREEN_H
+
+#include "pipe/p_winsys.h"
+#include "dri_util.h"
+#include "radeon_bo.h"
+
+struct amd_screen {
+    __DRIscreenPrivate          *dri_screen;
+    struct radeon_bo_manager    *bom;
+};
+
+#endif
diff --git a/src/gallium/winsys/drm/amd/amd_winsys_softpipe.c b/src/gallium/winsys/drm/amd/amd_winsys_softpipe.c
new file mode 100644
index 00000000000..b9b2a0e8b80
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_winsys_softpipe.c
@@ -0,0 +1,77 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+#include <stdio.h>
+#include "imports.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_format.h"
+#include "softpipe/sp_winsys.h"
+#include "amd_context.h"
+#include "amd_winsys_softpipe.h"
+
+struct amd_softpipe_winsys {
+    struct softpipe_winsys  sp_winsys;
+    struct amd_context      *amd_context;
+};
+
+/**
+ * Return list of surface formats supported by this driver.
+ */
+static boolean amd_is_format_supported(struct softpipe_winsys *sws, uint format)
+{
+    switch (format) {
+    case PIPE_FORMAT_A8R8G8B8_UNORM:
+    case PIPE_FORMAT_R5G6B5_UNORM:
+    case PIPE_FORMAT_Z24S8_UNORM:
+        return TRUE;
+    default:
+        break;
+    };
+    return FALSE;
+}
+
+struct pipe_context *amd_create_softpipe(struct amd_context *amd_context)
+{
+    struct amd_softpipe_winsys *amd_sp_ws;
+    struct pipe_screen *pipe_screen;
+
+    pipe_screen = softpipe_create_screen(amd_context->pipe_winsys);
+
+    amd_sp_ws = CALLOC_STRUCT(amd_softpipe_winsys);
+    if (amd_sp_ws == NULL) {
+        return NULL;
+    }
+    amd_context->pipe_screen = pipe_screen;
+    amd_sp_ws->amd_context = amd_context;
+    amd_sp_ws->sp_winsys.is_format_supported = amd_is_format_supported;
+    return softpipe_create(pipe_screen,
+                           amd_context->pipe_winsys,
+                           &amd_sp_ws->sp_winsys);
+}
diff --git a/src/gallium/winsys/drm/amd/amd_winsys_softpipe.h b/src/gallium/winsys/drm/amd/amd_winsys_softpipe.h
new file mode 100644
index 00000000000..e5b68cf8a54
--- /dev/null
+++ b/src/gallium/winsys/drm/amd/amd_winsys_softpipe.h
@@ -0,0 +1,37 @@
+/* 
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <[email protected]>
+ */
+#ifndef AMD_WINSYS_SOFTPIPE_H
+#define AMD_WINSYS_SOFTPIPE_H
+
+#include "amd_context.h"
+
+struct pipe_context *amd_create_softpipe(struct amd_context *amd_context);
+
+#endif