drm/radeon/kms: add support for square microtiles on r3xx-r5xx

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/r300.c

@@ -705,6 +705,8 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 			tile_flags |= R300_TXO_MACRO_TILE;
 		if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
 			tile_flags |= R300_TXO_MICRO_TILE;
+		else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO_SQUARE)
+			tile_flags |= R300_TXO_MICRO_TILE_SQUARE;
 
 		tmp = idx_value + ((u32)reloc->lobj.gpu_offset);
 		tmp |= tile_flags;
@@ -755,6 +757,8 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 			tile_flags |= R300_COLOR_TILE_ENABLE;
 		if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
 			tile_flags |= R300_COLOR_MICROTILE_ENABLE;
+		else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO_SQUARE)
+			tile_flags |= R300_COLOR_MICROTILE_SQUARE_ENABLE;
 
 		tmp = idx_value & ~(0x7 << 16);
 		tmp |= tile_flags;
@@ -826,7 +830,9 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
 			tile_flags |= R300_DEPTHMACROTILE_ENABLE;
 		if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
-			tile_flags |= R300_DEPTHMICROTILE_TILED;;
+			tile_flags |= R300_DEPTHMICROTILE_TILED;
+		else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO_SQUARE)
+			tile_flags |= R300_DEPTHMICROTILE_TILED_SQUARE;
 
 		tmp = idx_value & ~(0x7 << 16);
 		tmp |= tile_flags;

drivers/gpu/drm/radeon/r300_reg.h

@@ -952,6 +952,7 @@
 #       define R300_TXO_ENDIAN_HALFDW_SWAP       (3 << 0)
 #       define R300_TXO_MACRO_TILE               (1 << 2)
 #       define R300_TXO_MICRO_TILE               (1 << 3)
+#       define R300_TXO_MICRO_TILE_SQUARE        (2 << 3)
 #       define R300_TXO_OFFSET_MASK              0xffffffe0
 #       define R300_TXO_OFFSET_SHIFT             5
 	/* END: Guess from R200 */
@@ -1360,6 +1361,7 @@
 #       define R300_COLORPITCH_MASK              0x00001FF8 /* GUESS */
 #       define R300_COLOR_TILE_ENABLE            (1 << 16) /* GUESS */
 #       define R300_COLOR_MICROTILE_ENABLE       (1 << 17) /* GUESS */
+#       define R300_COLOR_MICROTILE_SQUARE_ENABLE (2 << 17)
 #       define R300_COLOR_ENDIAN_NO_SWAP         (0 << 18) /* GUESS */
 #       define R300_COLOR_ENDIAN_WORD_SWAP       (1 << 18) /* GUESS */
 #       define R300_COLOR_ENDIAN_DWORD_SWAP      (2 << 18) /* GUESS */

include/drm/radeon_drm.h

@@ -808,6 +808,7 @@ struct drm_radeon_gem_create {
 #define RADEON_TILING_SWAP_32BIT  0x8
 #define RADEON_TILING_SURFACE     0x10 /* this object requires a surface
 					* when mapped - i.e. front buffer */
+#define RADEON_TILING_MICRO_SQUARE 0x20
 
 struct drm_radeon_gem_set_tiling {
 	uint32_t	handle;