r600g: retrieve tiling info from kernel for shared buffers.

we need to know if the back is tiled so we can blit from it properly.

3 files changed, 42 insertions, 2 deletions

diff --git a/src/gallium/winsys/r600/drm/r600_bo.c b/src/gallium/winsys/r600/drm/r600_bo.c
index 9498f3a82e..7d54ff18fc 100644
--- a/src/gallium/winsys/r600/drm/r600_bo.c
+++ b/src/gallium/winsys/r600/drm/r600_bo.c
@@ -26,7 +26,9 @@
 #include <pipe/p_compiler.h>
 #include <pipe/p_screen.h>
 #include <pipebuffer/pb_bufmgr.h>
+#include "radeon_drm.h"
 #include "r600_priv.h"
+#include "r600d.h"
 
 struct r600_bo *r600_bo(struct radeon *radeon,
 				  unsigned size, unsigned alignment, unsigned usage)
@@ -55,7 +57,7 @@ struct r600_bo *r600_bo(struct radeon *radeon,
 }
 
 struct r600_bo *r600_bo_handle(struct radeon *radeon,
-					 unsigned handle)
+			       unsigned handle, unsigned *array_mode)
 {
 	struct r600_bo *ws_bo = calloc(1, sizeof(struct r600_bo));
 	struct radeon_bo *bo;
@@ -68,6 +70,20 @@ struct r600_bo *r600_bo_handle(struct radeon *radeon,
 	bo = radeon_bo_pb_get_bo(ws_bo->pb);
 	ws_bo->size = bo->size;
 	pipe_reference_init(&ws_bo->reference, 1);
+
+	radeon_bo_get_tiling_flags(radeon, bo, &ws_bo->tiling_flags,
+				   &ws_bo->kernel_pitch);
+	if (array_mode) {
+		if (ws_bo->tiling_flags) {
+			if (ws_bo->tiling_flags & RADEON_TILING_MICRO)
+				*array_mode = V_0280A0_ARRAY_1D_TILED_THIN1;
+			if ((ws_bo->tiling_flags & (RADEON_TILING_MICRO | RADEON_TILING_MACRO)) ==
+			    (RADEON_TILING_MICRO | RADEON_TILING_MACRO))
+				*array_mode = V_0280A0_ARRAY_2D_TILED_THIN1;
+		} else {
+			*array_mode = 0;
+		}
+	}
 	return ws_bo;
 }
 
diff --git a/src/gallium/winsys/r600/drm/r600_priv.h b/src/gallium/winsys/r600/drm/r600_priv.h
index 08e243b00d..b5bd7bd92c 100644
--- a/src/gallium/winsys/r600/drm/r600_priv.h
+++ b/src/gallium/winsys/r600/drm/r600_priv.h
@@ -77,6 +77,8 @@ struct r600_bo {
 	struct pipe_reference		reference;
 	struct pb_buffer		*pb;
 	unsigned			size;
+	unsigned			tiling_flags;
+	unsigned                        kernel_pitch;
 };
 
 
@@ -95,7 +97,10 @@ int radeon_bo_wait(struct radeon *radeon, struct radeon_bo *bo);
 int radeon_bo_busy(struct radeon *radeon, struct radeon_bo *bo, uint32_t *domain);
 void radeon_bo_pbmgr_flush_maps(struct pb_manager *_mgr);
 int radeon_bo_fencelist(struct radeon *radeon, struct radeon_bo **bolist, uint32_t num_bo);
-
+int radeon_bo_get_tiling_flags(struct radeon *radeon,
+			       struct radeon_bo *bo,
+			       uint32_t *tiling_flags,
+			       uint32_t *pitch);
 
 /* radeon_bo_pb.c */
 struct radeon_bo *radeon_bo_pb_get_bo(struct pb_buffer *_buf);
diff --git a/src/gallium/winsys/r600/drm/radeon_bo.c b/src/gallium/winsys/r600/drm/radeon_bo.c
index 14a00161c8..9d664b7e53 100644
--- a/src/gallium/winsys/r600/drm/radeon_bo.c
+++ b/src/gallium/winsys/r600/drm/radeon_bo.c
@@ -200,3 +200,22 @@ int radeon_bo_busy(struct radeon *radeon, struct radeon_bo *bo, uint32_t *domain
 	*domain = args.domain;
 	return ret;
 }
+
+int radeon_bo_get_tiling_flags(struct radeon *radeon,
+			       struct radeon_bo *bo,
+			       uint32_t *tiling_flags,
+			       uint32_t *pitch)
+{
+	struct drm_radeon_gem_get_tiling args;
+	int ret;
+	
+	args.handle = bo->handle;
+	ret = drmCommandWriteRead(radeon->fd, DRM_RADEON_GEM_GET_TILING,
+				  &args, sizeof(args));
+	if (ret)
+		return ret;
+	
+	*tiling_flags = args.tiling_flags;
+	*pitch = args.pitch;
+	return ret;
+}