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-rw-r--r--src/gallium/drivers/nv30/nv40_vertprog.h178
1 files changed, 178 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv30/nv40_vertprog.h b/src/gallium/drivers/nv30/nv40_vertprog.h
new file mode 100644
index 00000000000..c1f2208f513
--- /dev/null
+++ b/src/gallium/drivers/nv30/nv40_vertprog.h
@@ -0,0 +1,178 @@
+#ifndef __NV40_SHADER_H__
+#define __NV40_SHADER_H__
+
+/* Vertex programs instruction set
+ *
+ * The NV40 instruction set is very similar to NV30. Most fields are in
+ * a slightly different position in the instruction however.
+ *
+ * Merged instructions
+ * In some cases it is possible to put two instructions into one opcode
+ * slot. The rules for when this is OK is not entirely clear to me yet.
+ *
+ * There are separate writemasks and dest temp register fields for each
+ * grouping of instructions. There is however only one field with the
+ * ID of a result register. Writing to temp/result regs is selected by
+ * setting VEC_RESULT/SCA_RESULT.
+ *
+ * Temporary registers
+ * The source/dest temp register fields have been extended by 1 bit, to
+ * give a total of 32 temporary registers.
+ *
+ * Relative Addressing
+ * NV40 can use an address register to index into vertex attribute regs.
+ * This is done by putting the offset value into INPUT_SRC and setting
+ * the INDEX_INPUT flag.
+ *
+ * Conditional execution (see NV_vertex_program{2,3} for details)
+ * There is a second condition code register on NV40, it's use is enabled
+ * by setting the COND_REG_SELECT_1 flag.
+ *
+ * Texture lookup
+ * TODO
+ */
+
+/* ---- OPCODE BITS 127:96 / data DWORD 0 --- */
+#define NV40_VP_INST_VEC_RESULT (1 << 30)
+/* uncertain.. */
+#define NV40_VP_INST_COND_UPDATE_ENABLE ((1 << 14)|1<<29)
+/* use address reg as index into attribs */
+#define NV40_VP_INST_INDEX_INPUT (1 << 27)
+#define NV40_VP_INST_SATURATE (1 << 26)
+#define NV40_VP_INST_COND_REG_SELECT_1 (1 << 25)
+#define NV40_VP_INST_ADDR_REG_SELECT_1 (1 << 24)
+#define NV40_VP_INST_SRC2_ABS (1 << 23)
+#define NV40_VP_INST_SRC1_ABS (1 << 22)
+#define NV40_VP_INST_SRC0_ABS (1 << 21)
+#define NV40_VP_INST_VEC_DEST_TEMP_SHIFT 15
+#define NV40_VP_INST_VEC_DEST_TEMP_MASK (0x3F << 15)
+#define NV40_VP_INST_COND_TEST_ENABLE (1 << 13)
+#define NV40_VP_INST_COND_SHIFT 10
+#define NV40_VP_INST_COND_MASK (0x7 << 10)
+#define NV40_VP_INST_COND_SWZ_X_SHIFT 8
+#define NV40_VP_INST_COND_SWZ_X_MASK (3 << 8)
+#define NV40_VP_INST_COND_SWZ_Y_SHIFT 6
+#define NV40_VP_INST_COND_SWZ_Y_MASK (3 << 6)
+#define NV40_VP_INST_COND_SWZ_Z_SHIFT 4
+#define NV40_VP_INST_COND_SWZ_Z_MASK (3 << 4)
+#define NV40_VP_INST_COND_SWZ_W_SHIFT 2
+#define NV40_VP_INST_COND_SWZ_W_MASK (3 << 2)
+#define NV40_VP_INST_COND_SWZ_ALL_SHIFT 2
+#define NV40_VP_INST_COND_SWZ_ALL_MASK (0xFF << 2)
+#define NV40_VP_INST_ADDR_SWZ_SHIFT 0
+#define NV40_VP_INST_ADDR_SWZ_MASK (0x03 << 0)
+#define NV40_VP_INST0_KNOWN ( \
+ NV40_VP_INST_INDEX_INPUT | \
+ NV40_VP_INST_COND_REG_SELECT_1 | \
+ NV40_VP_INST_ADDR_REG_SELECT_1 | \
+ NV40_VP_INST_SRC2_ABS | \
+ NV40_VP_INST_SRC1_ABS | \
+ NV40_VP_INST_SRC0_ABS | \
+ NV40_VP_INST_VEC_DEST_TEMP_MASK | \
+ NV40_VP_INST_COND_TEST_ENABLE | \
+ NV40_VP_INST_COND_MASK | \
+ NV40_VP_INST_COND_SWZ_ALL_MASK | \
+ NV40_VP_INST_ADDR_SWZ_MASK)
+
+/* ---- OPCODE BITS 95:64 / data DWORD 1 --- */
+#define NV40_VP_INST_VEC_OPCODE_SHIFT 22
+#define NV40_VP_INST_VEC_OPCODE_MASK (0x1F << 22)
+#define NV40_VP_INST_SCA_OPCODE_SHIFT 27
+#define NV40_VP_INST_SCA_OPCODE_MASK (0x1F << 27)
+#define NV40_VP_INST_CONST_SRC_SHIFT 12
+#define NV40_VP_INST_CONST_SRC_MASK (0xFF << 12)
+#define NV40_VP_INST_INPUT_SRC_SHIFT 8
+#define NV40_VP_INST_INPUT_SRC_MASK (0x0F << 8)
+#define NV40_VP_INST_SRC0H_SHIFT 0
+#define NV40_VP_INST_SRC0H_MASK (0xFF << 0)
+#define NV40_VP_INST1_KNOWN ( \
+ NV40_VP_INST_VEC_OPCODE_MASK | \
+ NV40_VP_INST_SCA_OPCODE_MASK | \
+ NV40_VP_INST_CONST_SRC_MASK | \
+ NV40_VP_INST_INPUT_SRC_MASK | \
+ NV40_VP_INST_SRC0H_MASK \
+ )
+
+/* ---- OPCODE BITS 63:32 / data DWORD 2 --- */
+#define NV40_VP_INST_SRC0L_SHIFT 23
+#define NV40_VP_INST_SRC0L_MASK (0x1FF << 23)
+#define NV40_VP_INST_SRC1_SHIFT 6
+#define NV40_VP_INST_SRC1_MASK (0x1FFFF << 6)
+#define NV40_VP_INST_SRC2H_SHIFT 0
+#define NV40_VP_INST_SRC2H_MASK (0x3F << 0)
+#define NV40_VP_INST_IADDRH_SHIFT 0
+#define NV40_VP_INST_IADDRH_MASK (0x3F << 0)
+
+/* ---- OPCODE BITS 31:0 / data DWORD 3 --- */
+#define NV40_VP_INST_IADDRL_SHIFT 29
+#define NV40_VP_INST_IADDRL_MASK (7 << 29)
+#define NV40_VP_INST_SRC2L_SHIFT 21
+#define NV40_VP_INST_SRC2L_MASK (0x7FF << 21)
+#define NV40_VP_INST_SCA_WRITEMASK_SHIFT 17
+#define NV40_VP_INST_SCA_WRITEMASK_MASK (0xF << 17)
+# define NV40_VP_INST_SCA_WRITEMASK_X (1 << 20)
+# define NV40_VP_INST_SCA_WRITEMASK_Y (1 << 19)
+# define NV40_VP_INST_SCA_WRITEMASK_Z (1 << 18)
+# define NV40_VP_INST_SCA_WRITEMASK_W (1 << 17)
+#define NV40_VP_INST_VEC_WRITEMASK_SHIFT 13
+#define NV40_VP_INST_VEC_WRITEMASK_MASK (0xF << 13)
+# define NV40_VP_INST_VEC_WRITEMASK_X (1 << 16)
+# define NV40_VP_INST_VEC_WRITEMASK_Y (1 << 15)
+# define NV40_VP_INST_VEC_WRITEMASK_Z (1 << 14)
+# define NV40_VP_INST_VEC_WRITEMASK_W (1 << 13)
+#define NV40_VP_INST_SCA_RESULT (1 << 12)
+#define NV40_VP_INST_SCA_DEST_TEMP_SHIFT 7
+#define NV40_VP_INST_SCA_DEST_TEMP_MASK (0x1F << 7)
+#define NV40_VP_INST_DEST_SHIFT 2
+#define NV40_VP_INST_DEST_MASK (31 << 2)
+# define NV40_VP_INST_DEST_POS 0
+# define NV40_VP_INST_DEST_COL0 1
+# define NV40_VP_INST_DEST_COL1 2
+# define NV40_VP_INST_DEST_BFC0 3
+# define NV40_VP_INST_DEST_BFC1 4
+# define NV40_VP_INST_DEST_FOGC 5
+# define NV40_VP_INST_DEST_PSZ 6
+# define NV40_VP_INST_DEST_TC0 7
+# define NV40_VP_INST_DEST_TC(n) (7+n)
+# define NV40_VP_INST_DEST_TEMP 0x1F
+#define NV40_VP_INST_INDEX_CONST (1 << 1)
+#define NV40_VP_INST3_KNOWN ( \
+ NV40_VP_INST_SRC2L_MASK |\
+ NV40_VP_INST_SCA_WRITEMASK_MASK |\
+ NV40_VP_INST_VEC_WRITEMASK_MASK |\
+ NV40_VP_INST_SCA_DEST_TEMP_MASK |\
+ NV40_VP_INST_DEST_MASK |\
+ NV40_VP_INST_INDEX_CONST)
+
+/* Useful to split the source selection regs into their pieces */
+#define NV40_VP_SRC0_HIGH_SHIFT 9
+#define NV40_VP_SRC0_HIGH_MASK 0x0001FE00
+#define NV40_VP_SRC0_LOW_MASK 0x000001FF
+#define NV40_VP_SRC2_HIGH_SHIFT 11
+#define NV40_VP_SRC2_HIGH_MASK 0x0001F800
+#define NV40_VP_SRC2_LOW_MASK 0x000007FF
+
+/* Source selection - these are the bits you fill NV40_VP_INST_SRCn with */
+#define NV40_VP_SRC_NEGATE (1 << 16)
+#define NV40_VP_SRC_SWZ_X_SHIFT 14
+#define NV40_VP_SRC_SWZ_X_MASK (3 << 14)
+#define NV40_VP_SRC_SWZ_Y_SHIFT 12
+#define NV40_VP_SRC_SWZ_Y_MASK (3 << 12)
+#define NV40_VP_SRC_SWZ_Z_SHIFT 10
+#define NV40_VP_SRC_SWZ_Z_MASK (3 << 10)
+#define NV40_VP_SRC_SWZ_W_SHIFT 8
+#define NV40_VP_SRC_SWZ_W_MASK (3 << 8)
+#define NV40_VP_SRC_SWZ_ALL_SHIFT 8
+#define NV40_VP_SRC_SWZ_ALL_MASK (0xFF << 8)
+#define NV40_VP_SRC_TEMP_SRC_SHIFT 2
+#define NV40_VP_SRC_TEMP_SRC_MASK (0x1F << 2)
+#define NV40_VP_SRC_REG_TYPE_SHIFT 0
+#define NV40_VP_SRC_REG_TYPE_MASK (3 << 0)
+# define NV40_VP_SRC_REG_TYPE_UNK0 0
+# define NV40_VP_SRC_REG_TYPE_TEMP 1
+# define NV40_VP_SRC_REG_TYPE_INPUT 2
+# define NV40_VP_SRC_REG_TYPE_CONST 3
+
+#include "nvfx_shader.h"
+
+#endif