Merge branch 'modesetting-101' of ssh://git.freedesktop.org/git/mesa/drm into modesetting-101

13 files changed, 521 insertions, 251 deletions

diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index ad62eff4..91decfc8 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -40,7 +40,8 @@ radeon_ms-objs := radeon_ms_drv.o radeon_ms_drm.o radeon_ms_family.o \
 		radeon_ms_cp.o radeon_ms_cp_mc.o radeon_ms_i2c.o \
 		radeon_ms_output.o radeon_ms_crtc.o radeon_ms_fb.o \
 		radeon_ms_exec.o radeon_ms_gpu.o radeon_ms_dac.o \
-		radeon_ms_properties.o radeon_ms_rom.o radeon_ms_combios.o
+		radeon_ms_properties.o radeon_ms_rom.o radeon_ms_combios.o \
+		amd_legacy_cbuffer.o
 sis-objs    := sis_drv.o sis_mm.o
 ffb-objs    := ffb_drv.o ffb_context.o
 savage-objs := savage_drv.o savage_bci.o savage_state.o
diff --git a/linux-core/amd.h b/linux-core/amd.h
new file mode 120000
index 00000000..b4882447
--- /dev/null
+++ b/linux-core/amd.h
@@ -0,0 +1 @@
+../shared-core/amd.h
\ No newline at end of file
diff --git a/linux-core/amd_cbuffer.h b/linux-core/amd_cbuffer.h
deleted file mode 120000
index 780b9d8f..00000000
--- a/linux-core/amd_cbuffer.h
+++ /dev/null
@@ -1 +0,0 @@
-../shared-core/amd_cbuffer.h
\ No newline at end of file
diff --git a/linux-core/amd_legacy.h b/linux-core/amd_legacy.h
new file mode 120000
index 00000000..1a7786fc
--- /dev/null
+++ b/linux-core/amd_legacy.h
@@ -0,0 +1 @@
+../shared-core/amd_legacy.h
\ No newline at end of file
diff --git a/linux-core/amd_legacy_cbuffer.c b/linux-core/amd_legacy_cbuffer.c
new file mode 120000
index 00000000..eab329b5
--- /dev/null
+++ b/linux-core/amd_legacy_cbuffer.c
@@ -0,0 +1 @@
+../shared-core/amd_legacy_cbuffer.c
\ No newline at end of file
diff --git a/linux-core/radeon_ms_fb.c b/linux-core/radeon_ms_fb.c
index a8fba712..dbbddaf4 100644
--- a/linux-core/radeon_ms_fb.c
+++ b/linux-core/radeon_ms_fb.c
@@ -40,19 +40,15 @@
 #include "drm.h"
 #include "drm_crtc.h"
 #include "radeon_ms.h"
+#include "amd.h"
 
-struct radeonfb_par {
-	struct drm_device       *dev;
-	struct drm_crtc         *crtc;
-	struct drm_display_mode *fb_mode;
-};
 
 static int radeonfb_setcolreg(unsigned regno, unsigned red,
 			       unsigned green, unsigned blue,
 			       unsigned transp, struct fb_info *info)
 {
-	struct radeonfb_par *par = info->par;
-	struct drm_framebuffer *fb = par->crtc->fb;
+	struct amd_fb *par = info->par;
+	struct drm_framebuffer *fb = par->fb;
 	struct drm_crtc *crtc = par->crtc;
 
 	if (regno > 255) {
@@ -87,8 +83,8 @@ static int radeonfb_setcolreg(unsigned regno, unsigned red,
 static int radeonfb_check_var(struct fb_var_screeninfo *var,
 			       struct fb_info *info)
 {
-        struct radeonfb_par *par = info->par;
-	struct drm_framebuffer *fb = par->crtc->fb;
+        struct amd_fb *par = info->par;
+	struct drm_framebuffer *fb = par->fb;
 
         if (!var->pixclock)
                 return -EINVAL;
@@ -176,8 +172,8 @@ static bool radeonfb_mode_equal(struct drm_display_mode *mode1,
 
 static int radeonfb_set_par(struct fb_info *info)
 {
-	struct radeonfb_par *par = info->par;
-	struct drm_framebuffer *fb = par->crtc->fb;
+	struct amd_fb *par = info->par;
+	struct drm_framebuffer *fb = par->fb;
 	struct drm_device *dev = par->dev;
         struct drm_display_mode *drm_mode, *search_mode;
         struct drm_output *output;
@@ -247,7 +243,9 @@ static int radeonfb_set_par(struct fb_info *info)
 	}
 
 	if (par->crtc->enabled) {
-		if (!drm_mode_equal(&par->crtc->mode, drm_mode)) {
+		if (!drm_mode_equal(&par->crtc->mode, drm_mode) ||
+		    par->crtc->fb != par->fb) {
+			par->crtc->fb = par->fb;
 			if (!drm_crtc_set_mode(par->crtc, drm_mode, 0, 0)) {
 				return -EINVAL;
 			}
@@ -274,14 +272,15 @@ static struct fb_ops radeonfb_ops = {
 
 int radeonfb_probe(struct drm_device *dev, struct drm_crtc *crtc)
 {
+	struct drm_radeon_private *dev_priv = dev->dev_private;
 	struct fb_info *info;
-	struct radeonfb_par *par;
+	struct amd_fb *par;
 	struct device *device = &dev->pdev->dev; 
 	struct drm_framebuffer *fb;
 	struct drm_display_mode *mode = crtc->desired_mode;
 	int ret;
 
-	info = framebuffer_alloc(sizeof(struct radeonfb_par), device);
+	info = framebuffer_alloc(sizeof(struct amd_fb), device);
 	if (!info){
 		DRM_INFO("[radeon_ms] framebuffer_alloc failed\n");
 		return -EINVAL;
@@ -324,8 +323,10 @@ int radeonfb_probe(struct drm_device *dev, struct drm_crtc *crtc)
 
 	fb->fbdev = info;
 	par = info->par;
+	dev_priv->fb = par;
 	par->dev = dev;
 	par->crtc = crtc;
+	par->fb = fb;
 	info->fbops = &radeonfb_ops;
 	strcpy(info->fix.id, "radeonfb");
 	info->fix.type = FB_TYPE_PACKED_PIXELS;
@@ -439,16 +440,22 @@ EXPORT_SYMBOL(radeonfb_probe);
 
 int radeonfb_remove(struct drm_device *dev, struct drm_crtc *crtc)
 {
-	struct drm_framebuffer *fb = crtc->fb;
-	struct fb_info *info = fb->fbdev;
-	
-	if (info) {
-		unregister_framebuffer(info);
-		drm_bo_kunmap(&fb->kmap);
-		drm_bo_usage_deref_unlocked(&fb->bo);
-		drm_framebuffer_destroy(fb);
-		framebuffer_release(info);
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+	struct amd_fb *fb = dev_priv->fb;
+	struct fb_info *info;
+
+	if (fb == NULL || fb->fb == NULL || fb->fb->fbdev == NULL) {
+		DRM_INFO("[radeon_ms] %s: no crtc, or fb or fbdev\n",
+			 __func__);
+		return 0;
 	}
+	info = fb->fb->fbdev;
+	unregister_framebuffer(info);
+	drm_bo_kunmap(&fb->fb->kmap);
+	drm_bo_usage_deref_unlocked(&fb->fb->bo);
+	drm_framebuffer_destroy(fb->fb);
+	framebuffer_release(info);
+	dev_priv->fb = NULL;
 	return 0;
 }
 EXPORT_SYMBOL(radeonfb_remove);
diff --git a/shared-core/amd_cbuffer.h b/shared-core/amd.h
index bca05751..31cf3eff 100644
--- a/shared-core/amd_cbuffer.h
+++ b/shared-core/amd.h
@@ -24,14 +24,13 @@
  * Authors:
  *    Jerome Glisse <glisse@freedesktop.org>
  */
-#ifndef __AMD_CBUFFER_H__
-#define __AMD_CBUFFER_H__
+#ifndef __AMD_H__
+#define __AMD_H__
 
 /* struct amd_cbuffer are for command buffer, this is the structure passed
  * around during command validation (ie check that user have the right to
  * execute the given command).
  */
-
 struct amd_cbuffer_arg
 {
 	struct list_head         list;
@@ -46,6 +45,33 @@ struct amd_cbuffer
 	struct amd_cbuffer_arg   arg_unused;
 	struct amd_cbuffer_arg   arg_used;
 	struct amd_cbuffer_arg   *args;
+	void			 *driver;
+};
+
+struct amd_cbuffer_checker
+{
+	uint32_t numof_p0_checkers;
+	uint32_t numof_p3_checkers;
+	int (*check)(struct drm_device *dev, struct amd_cbuffer *cbuffer);
+	int (**check_p0)(struct drm_device *dev, struct amd_cbuffer *cbuffer,
+			 int dw_id, int reg);
+	int (**check_p3)(struct drm_device *dev, struct amd_cbuffer *cbuffer,
+			 int dw_id, int op, int count);
+};
+
+struct amd_cbuffer_arg *
+amd_cbuffer_arg_from_dw_id(struct amd_cbuffer_arg *head, uint32_t dw_id);
+int amd_cbuffer_check(struct drm_device *dev, struct amd_cbuffer *cbuffer);
+
+
+/* struct amd_fb amd is for storing amd framebuffer informations
+ */
+struct amd_fb
+{
+	struct drm_device       *dev;
+	struct drm_crtc         *crtc;
+	struct drm_display_mode *fb_mode;
+	struct drm_framebuffer  *fb;
 };
 
 #endif
diff --git a/shared-core/amd_legacy.h b/shared-core/amd_legacy.h
new file mode 100644
index 00000000..92997dcd
--- /dev/null
+++ b/shared-core/amd_legacy.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2007 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, sublicense,
+ * 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 above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT 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.
+ *
+ * Authors:
+ *    Jerome Glisse <glisse@freedesktop.org>
+ */
+#ifndef __AMD_LEGACY_H__
+#define __AMD_LEGACY_H__
+
+int amd_legacy_cbuffer_destroy(struct drm_device *dev);
+int amd_legacy_cbuffer_initialize(struct drm_device *dev);
+
+#endif
diff --git a/shared-core/amd_legacy_cbuffer.c b/shared-core/amd_legacy_cbuffer.c
new file mode 100644
index 00000000..f1b7a44b
--- /dev/null
+++ b/shared-core/amd_legacy_cbuffer.c
@@ -0,0 +1,306 @@
+/*
+ * 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, sublicense,
+ * 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 above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT 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.
+ *
+ * Authors:
+ *    Jerome Glisse <glisse@freedesktop.org>
+ */
+#include "radeon_ms.h"
+#include "amd.h"
+
+#define RADEON_DST_Y_X                      0x1438
+#define RADEON_SRC_Y_X                      0x1434
+#define RADEON_DP_CNTL                      0x16c0
+#define RADEON_DP_GUI_MASTER_CNTL           0x146c
+#define RADEON_DP_BRUSH_BKGD_CLR            0x1478
+#define RADEON_DP_BRUSH_FRGD_CLR            0x147c
+#define RADEON_DP_WRITE_MASK                0x16cc
+#define RADEON_DST_PITCH_OFFSET             0x142c
+#define RADEON_SRC_PITCH_OFFSET             0x1428
+#define RADEON_DST_HEIGHT_WIDTH             0x143c
+
+struct legacy_check
+{
+	/* for 2D operations */
+	uint32_t                dp_gui_master_cntl;
+	uint32_t                dst_offset;
+	uint32_t                dst_pitch;
+	struct amd_cbuffer_arg  *dst;
+	uint32_t                dst_x;
+	uint32_t                dst_y;
+	uint32_t                dst_h;
+	uint32_t                dst_w;
+	struct amd_cbuffer_arg  *src;
+	uint32_t                src_pitch;
+	uint32_t                src_x;
+	uint32_t                src_y;
+};
+
+static int check_blit(struct drm_device *dev, struct amd_cbuffer *cbuffer)
+{
+	struct legacy_check *legacy_check;
+	long bpp, start, end;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	/* check that gui master cntl have been set */
+	if (legacy_check->dp_gui_master_cntl == 0xffffffff) {
+		return -EINVAL;
+	}
+	switch ((legacy_check->dp_gui_master_cntl >> 8) & 0xf) {
+	case 2:
+		bpp = 1;
+		break;
+	case 3:
+	case 4:
+		bpp = 2;
+		break;
+	case 6:
+		bpp = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+	/* check that a destination have been set */
+	if (legacy_check->dst == (void *)-1) {
+		return -EINVAL;
+	}
+	if (legacy_check->dst_pitch == 0xffffffff) {
+		return -EINVAL;
+	}
+	if (legacy_check->dst_x == 0xffffffff) {
+		return -EINVAL;
+	}
+	if (legacy_check->dst_y == 0xffffffff) {
+		return -EINVAL;
+	}
+	if (legacy_check->dst_w == 0xffffffff) {
+		return -EINVAL;
+	}
+	if (legacy_check->dst_h == 0xffffffff) {
+		return -EINVAL;
+	}
+	/* compute start offset of blit */
+	start = legacy_check->dst_pitch * legacy_check->dst_y +
+		legacy_check->dst_x * bpp;
+	/* compute end offset of blit */
+	end = legacy_check->dst_pitch * legacy_check->dst_h +
+	      legacy_check->dst_w * bpp;
+	/* FIXME: check that end offset is inside dst bo */
+
+	/* check that a destination have been set */
+	if (legacy_check->dp_gui_master_cntl & 1) {
+		if (legacy_check->src == (void *)-1) {
+			return -EINVAL;
+		}
+		if (legacy_check->src_pitch == 0xffffffff) {
+			return -EINVAL;
+		}
+		if (legacy_check->src_x == 0xffffffff) {
+			return -EINVAL;
+		}
+		if (legacy_check->src_y == 0xffffffff) {
+			return -EINVAL;
+		}
+		/* compute start offset of blit */
+		start = legacy_check->src_pitch * legacy_check->src_y +
+			legacy_check->src_x * bpp;
+		/* compute end offset of blit */
+		end = legacy_check->src_pitch * legacy_check->dst_h +
+		      legacy_check->dst_w * bpp + start;
+		/* FIXME: check that end offset is inside src bo */
+	}
+	return 0;
+}
+
+static int p0_dp_gui_master_cntl(struct drm_device *dev,
+				 struct amd_cbuffer *cbuffer,
+				 int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->dp_gui_master_cntl = cbuffer->cbuffer[dw_id];
+	/* we only accept src data type to be same as dst */
+	if (((legacy_check->dp_gui_master_cntl >> 12) & 0x3) != 3) {
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int p0_dst_pitch_offset(struct drm_device *dev,
+			       struct amd_cbuffer *cbuffer,
+			       int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	uint32_t gpu_addr;
+	int ret;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->dst_pitch = ((cbuffer->cbuffer[dw_id] >> 22) & 0xff) << 6;
+	legacy_check->dst = amd_cbuffer_arg_from_dw_id(&cbuffer->arg_unused,
+						       dw_id);
+	if (legacy_check->dst == NULL) {
+		return -EINVAL;
+	}
+	ret = radeon_ms_bo_get_gpu_addr(dev, &legacy_check->dst->buffer->mem,
+					&gpu_addr);
+	if (ret) {
+		return -EINVAL;
+	}
+	cbuffer->cbuffer[dw_id] &= 0xffc00000;
+	cbuffer->cbuffer[dw_id] |= (gpu_addr >> 10);
+	return 0;
+}
+
+static int p0_src_pitch_offset(struct drm_device *dev,
+			       struct amd_cbuffer *cbuffer,
+			       int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	uint32_t gpu_addr;
+	int ret;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->src_pitch = ((cbuffer->cbuffer[dw_id] >> 22) & 0xff) << 6;
+	legacy_check->src = amd_cbuffer_arg_from_dw_id(&cbuffer->arg_unused,
+						       dw_id);
+	if (legacy_check->dst == NULL) {
+		return -EINVAL;
+	}
+	ret = radeon_ms_bo_get_gpu_addr(dev, &legacy_check->src->buffer->mem,
+					&gpu_addr);
+	if (ret) {
+		return -EINVAL;
+	}
+	cbuffer->cbuffer[dw_id] &= 0xffc00000;
+	cbuffer->cbuffer[dw_id] |= (gpu_addr >> 10);
+	return 0;
+}
+
+static int p0_dst_y_x(struct drm_device *dev,
+		      struct amd_cbuffer *cbuffer,
+		      int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->dst_x = cbuffer->cbuffer[dw_id] & 0xffff;
+	legacy_check->dst_y = (cbuffer->cbuffer[dw_id] >> 16) & 0xffff;
+	return 0;
+}
+
+static int p0_src_y_x(struct drm_device *dev,
+		      struct amd_cbuffer *cbuffer,
+		      int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->src_x = cbuffer->cbuffer[dw_id] & 0xffff;
+	legacy_check->src_y = (cbuffer->cbuffer[dw_id] >> 16) & 0xffff;
+	return 0;
+}
+
+static int p0_dst_h_w(struct drm_device *dev,
+		      struct amd_cbuffer *cbuffer,
+		      int dw_id, int reg)
+{
+	struct legacy_check *legacy_check;
+	
+	legacy_check = (struct legacy_check *)cbuffer->driver;
+	legacy_check->dst_w = cbuffer->cbuffer[dw_id] & 0xffff;
+	legacy_check->dst_h = (cbuffer->cbuffer[dw_id] >> 16) & 0xffff;
+	return check_blit(dev, cbuffer);
+}
+
+static int legacy_cbuffer_check(struct drm_device *dev,
+				struct amd_cbuffer *cbuffer)
+{
+	struct legacy_check legacy_check;
+
+	memset(&legacy_check, 0xff, sizeof(struct legacy_check));
+	cbuffer->driver = &legacy_check;
+	return amd_cbuffer_check(dev, cbuffer);
+}
+
+int amd_legacy_cbuffer_destroy(struct drm_device *dev)
+{
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+
+	dev_priv->cbuffer_checker.check = NULL;
+	if (dev_priv->cbuffer_checker.numof_p0_checkers) {
+		drm_free(dev_priv->cbuffer_checker.check_p0,
+			 dev_priv->cbuffer_checker.numof_p0_checkers *
+			 sizeof(void*), DRM_MEM_DRIVER);
+		dev_priv->cbuffer_checker.numof_p0_checkers = 0;
+	}
+	if (dev_priv->cbuffer_checker.numof_p3_checkers) {
+		drm_free(dev_priv->cbuffer_checker.check_p3,
+			 dev_priv->cbuffer_checker.numof_p3_checkers *
+			 sizeof(void*), DRM_MEM_DRIVER);
+		dev_priv->cbuffer_checker.numof_p3_checkers = 0;
+	}
+	return 0;
+}
+
+int amd_legacy_cbuffer_initialize(struct drm_device *dev)
+{
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+	struct amd_cbuffer_checker *checker = &dev_priv->cbuffer_checker;
+	long size;
+
+	/* packet 0 */
+	checker->numof_p0_checkers = 0x5000 >> 2;
+	size = checker->numof_p0_checkers * sizeof(void*);
+	checker->check_p0 = drm_alloc(size, DRM_MEM_DRIVER);
+	if (checker->check_p0 == NULL) {
+		amd_legacy_cbuffer_destroy(dev);
+		return -ENOMEM;
+	}
+	/* initialize to -1 */
+	memset(checker->check_p0, 0xff, size);
+
+	/* packet 3 */
+	checker->numof_p3_checkers = 20;
+	size = checker->numof_p3_checkers * sizeof(void*);
+	checker->check_p3 = drm_alloc(size, DRM_MEM_DRIVER);
+	if (checker->check_p3 == NULL) {
+		amd_legacy_cbuffer_destroy(dev);
+		return -ENOMEM;
+	}
+	/* initialize to -1 */
+	memset(checker->check_p3, 0xff, size);
+
+	/* initialize packet0 checker */
+	checker->check_p0[RADEON_DST_Y_X >> 2] = p0_dst_y_x;
+	checker->check_p0[RADEON_SRC_Y_X >> 2] = p0_src_y_x;
+	checker->check_p0[RADEON_DST_HEIGHT_WIDTH >> 2] = p0_dst_h_w;
+	checker->check_p0[RADEON_DST_PITCH_OFFSET >> 2] = p0_dst_pitch_offset;
+	checker->check_p0[RADEON_SRC_PITCH_OFFSET >> 2] = p0_src_pitch_offset;
+	checker->check_p0[RADEON_DP_GUI_MASTER_CNTL>>2] = p0_dp_gui_master_cntl;
+	checker->check_p0[RADEON_DP_BRUSH_FRGD_CLR >> 2] = NULL;
+	checker->check_p0[RADEON_DP_WRITE_MASK >> 2] = NULL;
+	checker->check_p0[RADEON_DP_CNTL >> 2] = NULL;
+
+	checker->check = legacy_cbuffer_check;
+	return 0;
+}
diff --git a/shared-core/radeon_ms.h b/shared-core/radeon_ms.h
index e4010d84..ec264207 100644
--- a/shared-core/radeon_ms.h
+++ b/shared-core/radeon_ms.h
@@ -35,7 +35,8 @@
 #include "radeon_ms_drm.h"
 #include "radeon_ms_rom.h"
 #include "radeon_ms_properties.h"
-#include "amd_cbuffer.h"
+#include "amd.h"
+#include "amd_legacy.h"
 
 #define DRIVER_AUTHOR      "Jerome Glisse, Dave Airlie,  Gareth Hughes, "\
 			   "Keith Whitwell, others."
@@ -292,6 +293,8 @@ struct drm_radeon_private {
 	uint32_t                    *ring_buffer;
 	uint32_t                    *write_back_area;
 	const uint32_t              *microcode;
+	/* framebuffer */
+	struct amd_fb               *fb;
 	/* card family */
 	uint32_t                    usec_timeout;
 	uint32_t                    family;
@@ -326,6 +329,8 @@ struct drm_radeon_private {
 	uint8_t                     cp_ready;
 	uint8_t                     bus_ready;
 	uint8_t                     write_back;
+	/* command buffer informations */
+	struct amd_cbuffer_checker  cbuffer_checker;
 	/* abstract asic specific structures */
 	struct radeon_ms_rom        rom;
 	struct radeon_ms_properties properties;
diff --git a/shared-core/radeon_ms_crtc.c b/shared-core/radeon_ms_crtc.c
index b2383859..83dd0777 100644
--- a/shared-core/radeon_ms_crtc.c
+++ b/shared-core/radeon_ms_crtc.c
@@ -537,6 +537,10 @@ static void radeon_ms_crtc1_mode_set(struct drm_crtc *crtc,
 		  adjusted_mode->hsync_end, adjusted_mode->htotal,
 		  adjusted_mode->vdisplay, adjusted_mode->vsync_start,
 		  adjusted_mode->vsync_end, adjusted_mode->vtotal, adjusted_mode->type);
+	if (crtc->fb == NULL) {
+		DRM_INFO("[radeon_ms] no FB bound\n");
+		return;
+	}
 
 	/* only support RGB555,RGB565,ARGB8888 should satisfy all users */
 	switch (crtc->fb->bits_per_pixel) {
@@ -551,7 +555,7 @@ static void radeon_ms_crtc1_mode_set(struct drm_crtc *crtc,
 		format = 6;
 		break;
 	default:
-		DRM_ERROR("Unknown color depth\n");
+		DRM_ERROR("Unknown color depth %d\n", crtc->fb->bits_per_pixel);
 		return;
 	}
 	radeon_pll1_compute(crtc, adjusted_mode);
@@ -638,6 +642,17 @@ static void radeon_ms_crtc1_mode_set(struct drm_crtc *crtc,
 	radeon_ms_crtc1_restore(dev, state);
 }
 
+static void radeon_ms_crtc1_mode_set_base(struct drm_crtc *crtc, int x, int y)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_radeon_private *dev_priv = dev->dev_private;
+	struct radeon_state *state = &dev_priv->driver_state;
+
+	DRM_INFO("[radeon_ms] mode_set_base\n");
+	state->crtc_offset = REG_S(CRTC_OFFSET, CRTC_OFFSET, crtc->fb->bo->offset);
+	radeon_ms_crtc1_restore(dev, state);
+}
+
 static void radeon_ms_crtc_mode_commit(struct drm_crtc *crtc)
 {
 	crtc->funcs->dpms(crtc, DPMSModeOn);
@@ -651,6 +666,10 @@ static void radeon_ms_crtc_gamma_set(struct drm_crtc *crtc, u16 r,
 	struct radeon_state *state = &dev_priv->driver_state;
 	uint32_t color;
 
+	if (regno >= 256) {
+		return;
+	}
+	DRM_INFO("[radeon_ms] gamma[%d]=(%d, %d, %d)\n", regno, r, g, b);
 	switch(radeon_ms_crtc->crtc) {
 	case 1:
 		state->dac_cntl2 &= ~DAC_CNTL2__PALETTE_ACCESS_CNTL;
@@ -660,70 +679,22 @@ static void radeon_ms_crtc_gamma_set(struct drm_crtc *crtc, u16 r,
 		break;
 	}
 	MMIO_W(DAC_CNTL2, state->dac_cntl2);
-	if (crtc->fb->bits_per_pixel == 16 && crtc->fb->depth == 16) {
-		if (regno >= 64) {
-			return;
-		}
-		MMIO_W(PALETTE_INDEX,
-				REG_S(PALETTE_INDEX, PALETTE_W_INDEX,
-					regno * 4));
-		color = 0;
-		color = REG_S(PALETTE_DATA, PALETTE_DATA_R, r >> 8) |
-			REG_S(PALETTE_DATA, PALETTE_DATA_G, g >> 8) |
-			REG_S(PALETTE_DATA, PALETTE_DATA_B, b >> 8);
-		MMIO_W(PALETTE_DATA, color);
-		MMIO_W(PALETTE_INDEX,
-		       REG_S(PALETTE_INDEX, PALETTE_W_INDEX, regno * 4));
-		color = 0;
-		color = REG_S(PALETTE_30_DATA, PALETTE_DATA_R, r >> 6) |
-			REG_S(PALETTE_30_DATA, PALETTE_DATA_G, g >> 6) |
-			REG_S(PALETTE_30_DATA, PALETTE_DATA_B, b >> 6);
-		MMIO_W(PALETTE_30_DATA, color);
-		radeon_ms_crtc->lut_r[regno * 4] = r;
-		radeon_ms_crtc->lut_g[regno * 4] = g;
-		radeon_ms_crtc->lut_b[regno * 4] = b;
-		if (regno < 32) {
-			MMIO_W(PALETTE_INDEX,
-			       REG_S(PALETTE_INDEX, PALETTE_W_INDEX,
-				       regno * 8));
-			color = 0;
-			color = REG_S(PALETTE_DATA, PALETTE_DATA_R, r >> 8) |
-				REG_S(PALETTE_DATA, PALETTE_DATA_G, g >> 8) |
-				REG_S(PALETTE_DATA, PALETTE_DATA_B, b >> 8);
-			MMIO_W(PALETTE_DATA, color);
-			MMIO_W(PALETTE_INDEX,
-			       REG_S(PALETTE_INDEX, PALETTE_W_INDEX,
-				      regno * 8));
-			color = 0;
-			color = REG_S(PALETTE_30_DATA, PALETTE_DATA_R,r >> 6) |
-				REG_S(PALETTE_30_DATA, PALETTE_DATA_G,g >> 6) |
-				REG_S(PALETTE_30_DATA, PALETTE_DATA_B,b >> 6);
-			MMIO_W(PALETTE_30_DATA, color);
-			radeon_ms_crtc->lut_r[regno * 8] = r;
-			radeon_ms_crtc->lut_g[regno * 8] = g;
-			radeon_ms_crtc->lut_b[regno * 8] = b;
-		}
-	} else {
-		if (regno >= 256) {
-			return;
-		}
-		radeon_ms_crtc->lut_r[regno] = r;
-		radeon_ms_crtc->lut_g[regno] = g;
-		radeon_ms_crtc->lut_b[regno] = b;
-		MMIO_W(PALETTE_INDEX,
-		       REG_S(PALETTE_INDEX, PALETTE_W_INDEX, regno));
-		color = 0;
-		color = REG_S(PALETTE_DATA, PALETTE_DATA_R, r >> 8) |
-			REG_S(PALETTE_DATA, PALETTE_DATA_G, g >> 8) |
-			REG_S(PALETTE_DATA, PALETTE_DATA_B, b >> 8);
-		MMIO_W(PALETTE_DATA, color);
-		MMIO_W(PALETTE_INDEX,
-				REG_S(PALETTE_INDEX, PALETTE_W_INDEX, regno));
-		color = 0;
-		color = REG_S(PALETTE_30_DATA, PALETTE_DATA_R, r >> 6) |
-			REG_S(PALETTE_30_DATA, PALETTE_DATA_G, g >> 6) |
-			REG_S(PALETTE_30_DATA, PALETTE_DATA_B, b >> 6);
-	}
+	radeon_ms_crtc->lut_r[regno] = r;
+	radeon_ms_crtc->lut_g[regno] = g;
+	radeon_ms_crtc->lut_b[regno] = b;
+	MMIO_W(PALETTE_INDEX, REG_S(PALETTE_INDEX, PALETTE_W_INDEX, regno));
+	color = 0;
+	color = REG_S(PALETTE_DATA, PALETTE_DATA_R, r >> 8) |
+		REG_S(PALETTE_DATA, PALETTE_DATA_G, g >> 8) |
+		REG_S(PALETTE_DATA, PALETTE_DATA_B, b >> 8);
+	MMIO_W(PALETTE_DATA, color);
+	MMIO_W(PALETTE_INDEX,
+			REG_S(PALETTE_INDEX, PALETTE_W_INDEX, regno));
+	color = 0;
+	color = REG_S(PALETTE_30_DATA, PALETTE_DATA_R, r >> 6) |
+		REG_S(PALETTE_30_DATA, PALETTE_DATA_G, g >> 6) |
+		REG_S(PALETTE_30_DATA, PALETTE_DATA_B, b >> 6);
+	MMIO_W(PALETTE_30_DATA, color);
 }
 
 static void radeon_ms_crtc_load_lut(struct drm_crtc *crtc)
@@ -762,6 +733,7 @@ static const struct drm_crtc_funcs radeon_ms_crtc1_funcs= {
 	.commit = radeon_ms_crtc_mode_commit,
 	.mode_fixup = radeon_ms_crtc_mode_fixup,
 	.mode_set = radeon_ms_crtc1_mode_set,
+	.mode_set_base = radeon_ms_crtc1_mode_set_base,
 	.gamma_set = radeon_ms_crtc_gamma_set,
 	.cleanup = NULL, /* XXX */
 };
diff --git a/shared-core/radeon_ms_drm.c b/shared-core/radeon_ms_drm.c
index 869ccac4..0d327925 100644
--- a/shared-core/radeon_ms_drm.c
+++ b/shared-core/radeon_ms_drm.c
@@ -246,6 +246,13 @@ int radeon_ms_driver_load(struct drm_device *dev, unsigned long flags)
 		return ret;
 	}
 
+	/* initialze driver specific */
+	ret = amd_legacy_cbuffer_initialize(dev);
+	if (ret != 0) {
+		radeon_ms_driver_unload(dev);
+		return ret;
+	}
+
 	if (dev->primary && dev->control) {
 		DRM_INFO("[radeon_ms] control 0x%lx, render 0x%lx\n",
 		          (long)dev->primary->device, (long)dev->control->device);
@@ -277,6 +284,9 @@ int radeon_ms_driver_unload(struct drm_device *dev)
 	radeon_ms_outputs_restore(dev, &dev_priv->load_state);
 	radeon_ms_connectors_destroy(dev);
 	radeon_ms_outputs_destroy(dev);
+
+	/* shutdown specific driver */
+	amd_legacy_cbuffer_destroy(dev);
 	
 	/* shutdown cp engine */
 	radeon_ms_cp_finish(dev);
diff --git a/shared-core/radeon_ms_exec.c b/shared-core/radeon_ms_exec.c
index 574e5a06..28fcc180 100644
--- a/shared-core/radeon_ms_exec.c
+++ b/shared-core/radeon_ms_exec.c
@@ -25,7 +25,7 @@
  *    Jerome Glisse <glisse@freedesktop.org>
  */
 #include "radeon_ms.h"
-#include "amd_cbuffer.h"
+#include "amd.h"
 
 static void radeon_ms_execbuffer_args_clean(struct drm_device *dev,
 					    struct amd_cbuffer *cbuffer,
@@ -118,175 +118,78 @@ out_err:
 	return ret;
 }
 
-enum {
-	REGISTER_FORBIDDEN = 0,
-	REGISTER_SAFE,
-	REGISTER_SET_OFFSET,
-};
-static uint8_t _r3xx_register_right[0x5000 >> 2];
-
-static int amd_cbuffer_packet0_set_offset(struct drm_device *dev,
-					  struct amd_cbuffer *cbuffer,
-					  uint32_t reg, int dw_id,
-					  struct amd_cbuffer_arg *arg)
-{
-	uint32_t gpu_addr;
-	int ret;
-
-	ret = radeon_ms_bo_get_gpu_addr(dev, &arg->buffer->mem, &gpu_addr);
-	if (ret) {
-		return ret;
-	}
-	switch (reg) {
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static struct amd_cbuffer_arg *
-amd_cbuffer_arg_from_dw_id(struct amd_cbuffer_arg *head, uint32_t dw_id)
+static int cbuffer_packet0_check(struct drm_device *dev,
+				 struct amd_cbuffer *cbuffer,
+				 int dw_id)
 {
-	struct amd_cbuffer_arg *arg;
-
-	list_for_each_entry(arg, &head->list, list) {
-		if (arg->dw_id == dw_id) {
-			return arg;
-		}
-	}
-	/* no buffer at this dw index */
-	return NULL;
-}
-
-static int amd_cbuffer_packet0_check(struct drm_device *dev,
-				     struct drm_file *file_priv,
-				     struct amd_cbuffer *cbuffer,
-				     int dw_id,
-				     uint8_t *register_right)
-{
-	struct amd_cbuffer_arg *arg;
+	struct drm_radeon_private *dev_priv = dev->dev_private;
 	uint32_t reg, count, r, i;
 	int ret;
 
 	reg = cbuffer->cbuffer[dw_id] & PACKET0_REG_MASK;
 	count = (cbuffer->cbuffer[dw_id] & PACKET0_COUNT_MASK) >>
 		PACKET0_COUNT_SHIFT;
+	if (reg + count > dev_priv->cbuffer_checker.numof_p0_checkers) {
+		return -EINVAL;
+	}
 	for (r = reg, i = 0; i <= count; i++, r++) {
-		switch (register_right[i]) {
-		case REGISTER_FORBIDDEN:
+		if (dev_priv->cbuffer_checker.check_p0[r] == NULL) {
+			continue;
+		}
+		if (dev_priv->cbuffer_checker.check_p0[r] == (void *)-1) {
+			DRM_INFO("[radeon_ms] check_f: %d %d -1 checker\n",
+			         r, r << 2);
+			return -EINVAL;
+		}
+		ret = dev_priv->cbuffer_checker.check_p0[r](dev, cbuffer,
+							    dw_id + i + 1, reg);
+		if (ret) {
+			DRM_INFO("[radeon_ms] check_f: %d %d checker ret=%d\n",
+			         r, r << 2, ret);
 			return -EINVAL;
-		case REGISTER_SAFE:
-			break;
-		case REGISTER_SET_OFFSET:
-			arg = amd_cbuffer_arg_from_dw_id(&cbuffer->arg_unused,
-							 dw_id + i +1);
-			if (arg == NULL) {
-				return -EINVAL;
-			}
-			/* remove from unparsed list */
-			list_del(&arg->list);
-			list_add_tail(&arg->list, &cbuffer->arg_used.list);
-			/* set the offset */
-			ret =  amd_cbuffer_packet0_set_offset(dev, cbuffer,
-					  		      r, dw_id + i + 1,
-							      arg);
-			if (ret) {
-				return ret;
-			}
-			break;
 		}
 	}
 	/* header + N + 1 dword passed test */
 	return count + 2;
 }
 
-static int amd_cbuffer_packet3_check(struct drm_device *dev,
-				     struct drm_file *file_priv,
-				     struct amd_cbuffer *cbuffer,
-				     int dw_id)
+static int cbuffer_packet3_check(struct drm_device *dev,
+				 struct amd_cbuffer *cbuffer,
+				 int dw_id)
 {
-	struct amd_cbuffer_arg *arg;
+	struct drm_radeon_private *dev_priv = dev->dev_private;
 	uint32_t opcode, count;
-	uint32_t s_auth, s_mask;
-	uint32_t gpu_addr;
 	int ret;
 
 	opcode = (cbuffer->cbuffer[dw_id] & PACKET3_OPCODE_MASK) >>
 		 PACKET3_OPCODE_SHIFT;
+	if (opcode > dev_priv->cbuffer_checker.numof_p3_checkers) {
+		return -EINVAL;
+	}
 	count = (cbuffer->cbuffer[dw_id] & PACKET3_COUNT_MASK) >>
 		PACKET3_COUNT_SHIFT;
-	switch (opcode) {
-	case PACKET3_OPCODE_NOP:
-		break;
-	case PACKET3_OPCODE_BITBLT:
-	case PACKET3_OPCODE_BITBLT_MULTI:
-	DRM_INFO("[radeon_ms] exec step - [05][P3]00.00\n");
-		/* we only alow simple blit */
-		if (count != 5) {
-			return -EINVAL;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]01.00\n");
-		s_mask = 0xf;
-		s_auth = 0x3;
-		if ((cbuffer->cbuffer[dw_id + 1] & s_mask) != s_auth) {
-			return -EINVAL;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]02.00\n");
-		arg = amd_cbuffer_arg_from_dw_id(&cbuffer->arg_unused, dw_id+2);
-		if (arg == NULL) {
-			return -EINVAL;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]03.00\n");
-		ret = radeon_ms_bo_get_gpu_addr(dev, &arg->buffer->mem,
-						&gpu_addr);
-		if (ret) {
-			return ret;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]04.00\n");
-		gpu_addr = (gpu_addr >> 10) & 0x003FFFFF;
-		cbuffer->cbuffer[dw_id + 2] &= 0xFFC00000;
-		cbuffer->cbuffer[dw_id + 2] |= gpu_addr;
-		arg = amd_cbuffer_arg_from_dw_id(&cbuffer->arg_unused, dw_id+3);
-		if (arg == NULL) {
-			return -EINVAL;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]05.00\n");
-		ret = radeon_ms_bo_get_gpu_addr(dev, &arg->buffer->mem,
-						&gpu_addr);
-		if (ret) {
-			return ret;
-		}
-	DRM_INFO("[radeon_ms] exec step - [05][P3]06.00\n");
-		gpu_addr = (gpu_addr >> 10) & 0x003FFFFF;
-		cbuffer->cbuffer[dw_id + 3] &= 0xFFC00000;
-		cbuffer->cbuffer[dw_id + 3] |= gpu_addr;
-	DRM_INFO("[radeon_ms] exec step - [05][P3]07.00\n");
-		/* FIXME: check that source & destination are big enough
-		 * for requested blit */
-		break;
-	default:
+	if (dev_priv->cbuffer_checker.check_p3[opcode] == NULL) {
+		return -EINVAL;
+	}
+	ret = dev_priv->cbuffer_checker.check_p3[opcode](dev, cbuffer,
+							 dw_id + 1, opcode,
+							 count);
+	if (ret) {
 		return -EINVAL;
 	}
-	/* header + N + 1 dword passed test */
 	return count + 2;
 }
 
-static int amd_cbuffer_check(struct drm_device *dev,
-			     struct drm_file *file_priv,
-			     struct amd_cbuffer *cbuffer)
+int amd_cbuffer_check(struct drm_device *dev, struct amd_cbuffer *cbuffer)
 {
 	uint32_t i;
 	int ret;
 
 	for (i = 0; i < cbuffer->cbuffer_dw_count;) {
-	DRM_INFO("[radeon_ms] exec step - [05]00.00 %d 0x%08X\n",
-		 i, cbuffer->cbuffer[i]);
 		switch (PACKET_HEADER_GET(cbuffer->cbuffer[i])) {
 		case 0:
-			ret = amd_cbuffer_packet0_check(dev, file_priv,
-							cbuffer, i,
-							_r3xx_register_right);
-			if (ret) {
+			ret = cbuffer_packet0_check(dev, cbuffer, i);
+			if (ret <= 0) {
 				return ret;
 			}
 			/* advance to next packet */
@@ -296,13 +199,11 @@ static int amd_cbuffer_check(struct drm_device *dev,
 			/* we don't accept packet 1 */
 			return -EINVAL;
 		case 2:
-			/* packet 2 */
-			i += 1;
-			break;
+			/* FIXME: accept packet 2 */
+			return -EINVAL;
 		case 3:
-			ret = amd_cbuffer_packet3_check(dev, file_priv,
-							cbuffer, i);
-			if (ret) {
+			ret = cbuffer_packet3_check(dev, cbuffer, i);
+			if (ret <= 0) {
 				return ret;
 			}
 			/* advance to next packet */
@@ -313,9 +214,25 @@ static int amd_cbuffer_check(struct drm_device *dev,
 	return 0;
 }
 
+struct amd_cbuffer_arg *
+amd_cbuffer_arg_from_dw_id(struct amd_cbuffer_arg *head, uint32_t dw_id)
+{
+	struct amd_cbuffer_arg *arg;
+
+	list_for_each_entry(arg, &head->list, list) {
+		if (arg->dw_id == dw_id) {
+			return arg;
+		}
+	}
+	/* no buffer at this dw index */
+	return NULL;
+}
+
+
 int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 			 struct drm_file *file_priv)
 {
+	struct drm_radeon_private *dev_priv = dev->dev_private;
 	struct drm_radeon_execbuffer *execbuffer = data;
 	struct drm_fence_arg *fence_arg = &execbuffer->fence_arg;
 	struct drm_bo_kmap_obj cmd_kmap;
@@ -331,13 +248,11 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 
 	/* FIXME: Lock buffer manager, is this really needed ?
 	 */
-	DRM_INFO("[radeon_ms] exec step - 00.00\n");
 	ret = drm_bo_read_lock(&dev->bm.bm_lock);
 	if (ret) {
 		return ret;
 	}
 
-	DRM_INFO("[radeon_ms] exec step - 01.00\n");
 	cbuffer.args = drm_calloc(execbuffer->args_count,
 				  sizeof(struct amd_cbuffer_arg),
 				  DRM_MEM_DRIVER);
@@ -350,7 +265,6 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 	INIT_LIST_HEAD(&cbuffer.arg_used.list);
 
 	/* process arguments */
-	DRM_INFO("[radeon_ms] exec step - 02.00\n");
 	ret = radeon_ms_execbuffer_args(dev, file_priv, execbuffer, &cbuffer);
 	if (ret) {
 		DRM_ERROR("[radeon_ms] execbuffer wrong arguments\n");
@@ -358,14 +272,12 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 	}
 
 	/* map command buffer */
-	DRM_INFO("[radeon_ms] exec step - 03.00\n");
 	cbuffer.cbuffer_dw_count = (cbuffer.args[0].buffer->mem.num_pages *
 				    PAGE_SIZE) >> 2;
 	if (execbuffer->cmd_size > cbuffer.cbuffer_dw_count) {
 		ret = -EINVAL;
 		goto out_free_release;
 	}
-	DRM_INFO("[radeon_ms] exec step - 04.00\n");
 	cbuffer.cbuffer_dw_count = execbuffer->cmd_size;
 	memset(&cmd_kmap, 0, sizeof(struct drm_bo_kmap_obj));
 	ret = drm_bo_kmap(cbuffer.args[0].buffer, 0,
@@ -374,21 +286,21 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 		DRM_ERROR("[radeon_ms] error mapping ring buffer: %d\n", ret);
 		goto out_free_release;
 	}
-	DRM_INFO("[radeon_ms] exec step - 05.00\n");
 	cbuffer.cbuffer = drm_bmo_virtual(&cmd_kmap, &cmd_is_iomem);
-	DRM_INFO("[radeon_ms] exec step - 05.01\n");
 	list_del(&cbuffer.args[0].list);
-	DRM_INFO("[radeon_ms] exec step - 05.02\n");
 	list_add_tail(&cbuffer.args[0].list , &cbuffer.arg_used.list);
-	DRM_INFO("[radeon_ms] exec step - 05.03\n");
 
 	/* do cmd checking & relocations */
-	ret = amd_cbuffer_check(dev, file_priv, &cbuffer);
-	if (ret) {
+	if (dev_priv->cbuffer_checker.check) {
+		ret = dev_priv->cbuffer_checker.check(dev, &cbuffer);
+		if (ret) {
+			drm_putback_buffer_objects(dev);
+			goto out_free_release;
+		}
+	} else {
 		drm_putback_buffer_objects(dev);
 		goto out_free_release;
 	}
-	DRM_INFO("[radeon_ms] exec step - 06.00\n");
 
 	ret = radeon_ms_ring_emit(dev, cbuffer.cbuffer,
 				  cbuffer.cbuffer_dw_count);
@@ -396,7 +308,6 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 		drm_putback_buffer_objects(dev);
 		goto out_free_release;
 	}
-	DRM_INFO("[radeon_ms] exec step - 07.00\n");
 
 	/* fence */
 	ret = drm_fence_buffer_objects(dev, NULL, 0, NULL, &fence);
@@ -418,16 +329,13 @@ int radeon_ms_execbuffer(struct drm_device *dev, void *data,
 		}
 	}
 	drm_fence_usage_deref_unlocked(&fence);
-	DRM_INFO("[radeon_ms] exec step - 08.00\n");
 out_free_release:
 	drm_bo_kunmap(&cmd_kmap);
 	radeon_ms_execbuffer_args_clean(dev, &cbuffer, execbuffer->args_count);
-	DRM_INFO("[radeon_ms] exec step - 09.00\n");
 out_free:
 	drm_free(cbuffer.args,
 		 (execbuffer->args_count * sizeof(struct amd_cbuffer_arg)),
 		 DRM_MEM_DRIVER);
 	drm_bo_read_unlock(&dev->bm.bm_lock);
-	DRM_INFO("[radeon_ms] exec step - 10.00\n");
 	return ret;
 }