nv50: add 3d texture tiling and mip-mapping

Mip-mapped 3D textures are not arrays of 2D layers
with a mip-map layout like 2D textures, therefore we
cannot use image_nr == depth for them.

Making use of "volume tiling" modes now, the allowed
modes are 0xZY where Z <= 5 and y <= 5.

1 files changed, 30 insertions, 9 deletions

diff --git a/src/gallium/drivers/nv50/nv50_transfer.c b/src/gallium/drivers/nv50/nv50_transfer.c
index 9c008090b8d..ea61357aaa6 100644
--- a/src/gallium/drivers/nv50/nv50_transfer.c
+++ b/src/gallium/drivers/nv50/nv50_transfer.c
@@ -12,6 +12,7 @@ struct nv50_transfer {
 	int level_pitch;
 	int level_width;
 	int level_height;
+	int level_depth;
 	int level_x;
 	int level_y;
 };
@@ -20,10 +21,10 @@ static void
 nv50_transfer_rect_m2mf(struct pipe_screen *pscreen,
 			struct nouveau_bo *src_bo, unsigned src_offset,
 			int src_pitch, unsigned src_tile_mode,
-			int sx, int sy, int sw, int sh,
+			int sx, int sy, int sw, int sh, int sd,
 			struct nouveau_bo *dst_bo, unsigned dst_offset,
 			int dst_pitch, unsigned dst_tile_mode,
-			int dx, int dy, int dw, int dh,
+			int dx, int dy, int dw, int dh, int dd,
 			int cpp, int width, int height,
 			unsigned src_reloc, unsigned dst_reloc)
 {
@@ -51,7 +52,7 @@ nv50_transfer_rect_m2mf(struct pipe_screen *pscreen,
 		OUT_RING  (chan, src_tile_mode << 4);
 		OUT_RING  (chan, sw * cpp);
 		OUT_RING  (chan, sh);
-		OUT_RING  (chan, 1);
+		OUT_RING  (chan, sd);
 		OUT_RING  (chan, 0);
 	}
 
@@ -70,7 +71,7 @@ nv50_transfer_rect_m2mf(struct pipe_screen *pscreen,
 		OUT_RING  (chan, dst_tile_mode << 4);
 		OUT_RING  (chan, dw * cpp);
 		OUT_RING  (chan, dh);
-		OUT_RING  (chan, 1);
+		OUT_RING  (chan, dd);
 		OUT_RING  (chan, 0);
 	}
 
@@ -114,6 +115,20 @@ nv50_transfer_rect_m2mf(struct pipe_screen *pscreen,
 	}
 }
 
+static INLINE unsigned
+get_zslice_offset(unsigned tile_mode, unsigned z, unsigned pitch, unsigned ny)
+{
+	unsigned tile_h = get_tile_height(tile_mode);
+	unsigned tile_d = get_tile_depth(tile_mode);
+
+	/* pitch_2d == to next slice within this volume-tile */
+	/* pitch_3d == to next slice in next 2D array of blocks */
+	unsigned pitch_2d = tile_h * 64;
+	unsigned pitch_3d = tile_d * align(ny, tile_h) * pitch;
+
+	return (z % tile_d) * pitch_2d + (z / tile_d) * pitch_3d;
+}
+
 static struct pipe_transfer *
 nv50_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 		  unsigned face, unsigned level, unsigned zslice,
@@ -129,9 +144,6 @@ nv50_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 
 	if (pt->target == PIPE_TEXTURE_CUBE)
 		image = face;
-	else
-	if (pt->target == PIPE_TEXTURE_3D)
-		image = zslice;
 
 	tx = CALLOC_STRUCT(nv50_transfer);
 	if (!tx)
@@ -157,6 +169,7 @@ nv50_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 	tx->level_pitch = lvl->pitch;
 	tx->level_width = mt->base.base.width[level];
 	tx->level_height = mt->base.base.height[level];
+	tx->level_depth = mt->base.base.depth[level];
 	tx->level_offset = lvl->image_offset[image];
 	tx->level_tiling = lvl->tile_mode;
 	tx->level_x = pf_get_nblocksx(&tx->base.block, x);
@@ -168,6 +181,11 @@ nv50_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 		return NULL;
 	}
 
+	if (pt->target == PIPE_TEXTURE_3D)
+		tx->level_offset += get_zslice_offset(lvl->tile_mode, zslice,
+						      lvl->pitch,
+						      tx->base.nblocksy);
+
 	if (usage & PIPE_TRANSFER_READ) {
 		nx = pf_get_nblocksx(&tx->base.block, tx->base.width);
 		ny = pf_get_nblocksy(&tx->base.block, tx->base.height);
@@ -176,10 +194,11 @@ nv50_transfer_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
 					tx->level_pitch, tx->level_tiling,
 					x, y,
 					tx->base.nblocksx, tx->base.nblocksy,
+					tx->level_depth,
 					tx->bo, 0,
 					tx->base.stride, tx->bo->tile_mode,
 					0, 0,
-					tx->base.nblocksx, tx->base.nblocksy,
+					tx->base.nblocksx, tx->base.nblocksy, 1,
 					tx->base.block.size, nx, ny,
 					NOUVEAU_BO_VRAM | NOUVEAU_BO_GART,
 					NOUVEAU_BO_GART);
@@ -199,14 +218,16 @@ nv50_transfer_del(struct pipe_transfer *ptx)
 
 	if (ptx->usage & PIPE_TRANSFER_WRITE) {
 		struct pipe_screen *pscreen = ptx->texture->screen;
+
 		nv50_transfer_rect_m2mf(pscreen, tx->bo, 0,
 					tx->base.stride, tx->bo->tile_mode,
 					0, 0,
-					tx->base.nblocksx, tx->base.nblocksy,
+					tx->base.nblocksx, tx->base.nblocksy, 1,
 					mt->base.bo, tx->level_offset,
 					tx->level_pitch, tx->level_tiling,
 					tx->level_x, tx->level_y,
 					tx->base.nblocksx, tx->base.nblocksy,
+					tx->level_depth,
 					tx->base.block.size, nx, ny,
 					NOUVEAU_BO_GART, NOUVEAU_BO_VRAM |
 					NOUVEAU_BO_GART);