diff options
Diffstat (limited to 'src/gallium/drivers/nvfx/nvfx_shader.h')
| -rw-r--r-- | src/gallium/drivers/nvfx/nvfx_shader.h | 407 |
1 files changed, 407 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvfx/nvfx_shader.h b/src/gallium/drivers/nvfx/nvfx_shader.h new file mode 100644 index 00000000000..191131a40a1 --- /dev/null +++ b/src/gallium/drivers/nvfx/nvfx_shader.h @@ -0,0 +1,407 @@ +#ifndef __NVFX_SHADER_H__ +#define __NVFX_SHADER_H__ + +/* this will resolve to either the NV30 or the NV40 version + * depending on the current hardware */ +/* unusual, but very fast and compact method */ +#define NVFX_VP(c) ((NV30_VP_##c) + (nvfx->is_nv4x & ((NV40_VP_##c) - (NV30_VP_##c)))) + +#define NVFX_VP_INST_SLOT_VEC 0 +#define NVFX_VP_INST_SLOT_SCA 1 + +#define NVFX_VP_INST_COND_FL 0 /* guess */ +#define NVFX_VP_INST_COND_LT 1 +#define NVFX_VP_INST_COND_EQ 2 +#define NVFX_VP_INST_COND_LE 3 +#define NVFX_VP_INST_COND_GT 4 +#define NVFX_VP_INST_COND_NE 5 +#define NVFX_VP_INST_COND_GE 6 +#define NVFX_VP_INST_COND_TR 7 /* guess */ + +#define NVFX_VP_INST_IN_POS 0 /* These seem to match the bindings specified in */ +#define NVFX_VP_INST_IN_WEIGHT 1 /* the ARB_v_p spec (2.14.3.1) */ +#define NVFX_VP_INST_IN_NORMAL 2 +#define NVFX_VP_INST_IN_COL0 3 /* Should probably confirm them all though */ +#define NVFX_VP_INST_IN_COL1 4 +#define NVFX_VP_INST_IN_FOGC 5 +#define NVFX_VP_INST_IN_TC0 8 +#define NVFX_VP_INST_IN_TC(n) (8+n) + +#define NVFX_VP_INST_SCA_OP_NOP 0x00 +#define NVFX_VP_INST_SCA_OP_MOV 0x01 +#define NVFX_VP_INST_SCA_OP_RCP 0x02 +#define NVFX_VP_INST_SCA_OP_RCC 0x03 +#define NVFX_VP_INST_SCA_OP_RSQ 0x04 +#define NVFX_VP_INST_SCA_OP_EXP 0x05 +#define NVFX_VP_INST_SCA_OP_LOG 0x06 +#define NVFX_VP_INST_SCA_OP_LIT 0x07 +#define NVFX_VP_INST_SCA_OP_BRA 0x09 +#define NVFX_VP_INST_SCA_OP_CAL 0x0B +#define NVFX_VP_INST_SCA_OP_RET 0x0C +#define NVFX_VP_INST_SCA_OP_LG2 0x0D +#define NVFX_VP_INST_SCA_OP_EX2 0x0E +#define NVFX_VP_INST_SCA_OP_SIN 0x0F +#define NVFX_VP_INST_SCA_OP_COS 0x10 + +#define NV40_VP_INST_SCA_OP_PUSHA 0x13 +#define NV40_VP_INST_SCA_OP_POPA 0x14 + +#define NVFX_VP_INST_VEC_OP_NOP 0x00 +#define NVFX_VP_INST_VEC_OP_MOV 0x01 +#define NVFX_VP_INST_VEC_OP_MUL 0x02 +#define NVFX_VP_INST_VEC_OP_ADD 0x03 +#define NVFX_VP_INST_VEC_OP_MAD 0x04 +#define NVFX_VP_INST_VEC_OP_DP3 0x05 +#define NVFX_VP_INST_VEC_OP_DPH 0x06 +#define NVFX_VP_INST_VEC_OP_DP4 0x07 +#define NVFX_VP_INST_VEC_OP_DST 0x08 +#define NVFX_VP_INST_VEC_OP_MIN 0x09 +#define NVFX_VP_INST_VEC_OP_MAX 0x0A +#define NVFX_VP_INST_VEC_OP_SLT 0x0B +#define NVFX_VP_INST_VEC_OP_SGE 0x0C +#define NVFX_VP_INST_VEC_OP_ARL 0x0D +#define NVFX_VP_INST_VEC_OP_FRC 0x0E +#define NVFX_VP_INST_VEC_OP_FLR 0x0F +#define NVFX_VP_INST_VEC_OP_SEQ 0x10 +#define NVFX_VP_INST_VEC_OP_SFL 0x11 +#define NVFX_VP_INST_VEC_OP_SGT 0x12 +#define NVFX_VP_INST_VEC_OP_SLE 0x13 +#define NVFX_VP_INST_VEC_OP_SNE 0x14 +#define NVFX_VP_INST_VEC_OP_STR 0x15 +#define NVFX_VP_INST_VEC_OP_SSG 0x16 +#define NVFX_VP_INST_VEC_OP_ARR 0x17 +#define NVFX_VP_INST_VEC_OP_ARA 0x18 + +#define NV40_VP_INST_VEC_OP_TXL 0x19 + +/* DWORD 3 */ +#define NVFX_VP_INST_LAST (1 << 0) + +/* + * Each fragment program opcode appears to be comprised of 4 32-bit values. + * + * 0 - Opcode, output reg/mask, ATTRIB source + * 1 - Source 0 + * 2 - Source 1 + * 3 - Source 2 + * + * There appears to be no special difference between result regs and temp regs. + * result.color == R0.xyzw + * result.depth == R1.z + * When the fragprog contains instructions to write depth, NV30_TCL_PRIMITIVE_3D_UNK1D78=0 + * otherwise it is set to 1. + * + * Constants are inserted directly after the instruction that uses them. + * + * It appears that it's not possible to use two input registers in one + * instruction as the input sourcing is done in the instruction dword + * and not the source selection dwords. As such instructions such as: + * + * ADD result.color, fragment.color, fragment.texcoord[0]; + * + * must be split into two MOV's and then an ADD (nvidia does this) but + * I'm not sure why it's not just one MOV and then source the second input + * in the ADD instruction.. + * + * Negation of the full source is done with NV30_FP_REG_NEGATE, arbitrary + * negation requires multiplication with a const. + * + * Arbitrary swizzling is supported with the exception of SWIZZLE_ZERO/SWIZZLE_ONE + * The temp/result regs appear to be initialised to (0.0, 0.0, 0.0, 0.0) as SWIZZLE_ZERO + * is implemented simply by not writing to the relevant components of the destination. + * + * Conditional execution + * TODO + * + * Non-native instructions: + * LIT + * LRP - MAD+MAD + * SUB - ADD, negate second source + * RSQ - LG2 + EX2 + * POW - LG2 + MUL + EX2 + * SCS - COS + SIN + * XPD + * + * NV40 Looping + * Loops appear to be fairly expensive on NV40 at least, the proprietary + * driver goes to a lot of effort to avoid using the native looping + * instructions. If the total number of *executed* instructions between + * REP/ENDREP or LOOP/ENDLOOP is <=500, the driver will unroll the loop. + * The maximum loop count is 255. + * + */ + +//== Opcode / Destination selection == +#define NVFX_FP_OP_PROGRAM_END (1 << 0) +#define NVFX_FP_OP_OUT_REG_SHIFT 1 +#define NV30_FP_OP_OUT_REG_MASK (31 << 1) /* uncertain */ +#define NV40_FP_OP_OUT_REG_MASK (63 << 1) +/* Needs to be set when writing outputs to get expected result.. */ +#define NVFX_FP_OP_OUT_REG_HALF (1 << 7) +#define NVFX_FP_OP_COND_WRITE_ENABLE (1 << 8) +#define NVFX_FP_OP_OUTMASK_SHIFT 9 +#define NVFX_FP_OP_OUTMASK_MASK (0xF << 9) +# define NVFX_FP_OP_OUT_X (1<<9) +# define NVFX_FP_OP_OUT_Y (1<<10) +# define NVFX_FP_OP_OUT_Z (1<<11) +# define NVFX_FP_OP_OUT_W (1<<12) +/* Uncertain about these, especially the input_src values.. it's possible that + * they can be dynamically changed. + */ +#define NVFX_FP_OP_INPUT_SRC_SHIFT 13 +#define NVFX_FP_OP_INPUT_SRC_MASK (15 << 13) +# define NVFX_FP_OP_INPUT_SRC_POSITION 0x0 +# define NVFX_FP_OP_INPUT_SRC_COL0 0x1 +# define NVFX_FP_OP_INPUT_SRC_COL1 0x2 +# define NVFX_FP_OP_INPUT_SRC_FOGC 0x3 +# define NVFX_FP_OP_INPUT_SRC_TC0 0x4 +# define NVFX_FP_OP_INPUT_SRC_TC(n) (0x4 + n) +# define NV40_FP_OP_INPUT_SRC_FACING 0xE +#define NVFX_FP_OP_TEX_UNIT_SHIFT 17 +#define NVFX_FP_OP_TEX_UNIT_MASK (0xF << 17) /* guess */ +#define NVFX_FP_OP_PRECISION_SHIFT 22 +#define NVFX_FP_OP_PRECISION_MASK (3 << 22) +# define NVFX_FP_PRECISION_FP32 0 +# define NVFX_FP_PRECISION_FP16 1 +# define NVFX_FP_PRECISION_FX12 2 +#define NVFX_FP_OP_OPCODE_SHIFT 24 +#define NVFX_FP_OP_OPCODE_MASK (0x3F << 24) +/* NV30/NV40 fragment program opcodes */ +#define NVFX_FP_OP_OPCODE_NOP 0x00 +#define NVFX_FP_OP_OPCODE_MOV 0x01 +#define NVFX_FP_OP_OPCODE_MUL 0x02 +#define NVFX_FP_OP_OPCODE_ADD 0x03 +#define NVFX_FP_OP_OPCODE_MAD 0x04 +#define NVFX_FP_OP_OPCODE_DP3 0x05 +#define NVFX_FP_OP_OPCODE_DP4 0x06 +#define NVFX_FP_OP_OPCODE_DST 0x07 +#define NVFX_FP_OP_OPCODE_MIN 0x08 +#define NVFX_FP_OP_OPCODE_MAX 0x09 +#define NVFX_FP_OP_OPCODE_SLT 0x0A +#define NVFX_FP_OP_OPCODE_SGE 0x0B +#define NVFX_FP_OP_OPCODE_SLE 0x0C +#define NVFX_FP_OP_OPCODE_SGT 0x0D +#define NVFX_FP_OP_OPCODE_SNE 0x0E +#define NVFX_FP_OP_OPCODE_SEQ 0x0F +#define NVFX_FP_OP_OPCODE_FRC 0x10 +#define NVFX_FP_OP_OPCODE_FLR 0x11 +#define NVFX_FP_OP_OPCODE_KIL 0x12 +#define NVFX_FP_OP_OPCODE_PK4B 0x13 +#define NVFX_FP_OP_OPCODE_UP4B 0x14 +#define NVFX_FP_OP_OPCODE_DDX 0x15 /* can only write XY */ +#define NVFX_FP_OP_OPCODE_DDY 0x16 /* can only write XY */ +#define NVFX_FP_OP_OPCODE_TEX 0x17 +#define NVFX_FP_OP_OPCODE_TXP 0x18 +#define NVFX_FP_OP_OPCODE_TXD 0x19 +#define NVFX_FP_OP_OPCODE_RCP 0x1A +#define NVFX_FP_OP_OPCODE_EX2 0x1C +#define NVFX_FP_OP_OPCODE_LG2 0x1D +#define NVFX_FP_OP_OPCODE_STR 0x20 +#define NVFX_FP_OP_OPCODE_SFL 0x21 +#define NVFX_FP_OP_OPCODE_COS 0x22 +#define NVFX_FP_OP_OPCODE_SIN 0x23 +#define NVFX_FP_OP_OPCODE_PK2H 0x24 +#define NVFX_FP_OP_OPCODE_UP2H 0x25 +#define NVFX_FP_OP_OPCODE_PK4UB 0x27 +#define NVFX_FP_OP_OPCODE_UP4UB 0x28 +#define NVFX_FP_OP_OPCODE_PK2US 0x29 +#define NVFX_FP_OP_OPCODE_UP2US 0x2A +#define NVFX_FP_OP_OPCODE_DP2A 0x2E +#define NVFX_FP_OP_OPCODE_TXB 0x31 +#define NVFX_FP_OP_OPCODE_DIV 0x3A + +/* NV30 only fragment program opcodes */ +#define NVFX_FP_OP_OPCODE_RSQ_NV30 0x1B +#define NVFX_FP_OP_OPCODE_LIT_NV30 0x1E +#define NVFX_FP_OP_OPCODE_LRP_NV30 0x1F +#define NVFX_FP_OP_OPCODE_POW_NV30 0x26 +#define NVFX_FP_OP_OPCODE_RFL_NV30 0x36 + +/* NV40 only fragment program opcodes */ +#define NVFX_FP_OP_OPCODE_TXL_NV40 0x31 +/* The use of these instructions appears to be indicated by bit 31 of DWORD 2.*/ +#define NV40_FP_OP_BRA_OPCODE_BRK 0x0 +#define NV40_FP_OP_BRA_OPCODE_CAL 0x1 +#define NV40_FP_OP_BRA_OPCODE_IF 0x2 +#define NV40_FP_OP_BRA_OPCODE_LOOP 0x3 +#define NV40_FP_OP_BRA_OPCODE_REP 0x4 +#define NV40_FP_OP_BRA_OPCODE_RET 0x5 + +#define NVFX_FP_OP_OUT_SAT (1 << 31) + +/* high order bits of SRC0 */ +#define NVFX_FP_OP_OUT_ABS (1 << 29) +#define NVFX_FP_OP_COND_SWZ_W_SHIFT 27 +#define NVFX_FP_OP_COND_SWZ_W_MASK (3 << 27) +#define NVFX_FP_OP_COND_SWZ_Z_SHIFT 25 +#define NVFX_FP_OP_COND_SWZ_Z_MASK (3 << 25) +#define NVFX_FP_OP_COND_SWZ_Y_SHIFT 23 +#define NVFX_FP_OP_COND_SWZ_Y_MASK (3 << 23) +#define NVFX_FP_OP_COND_SWZ_X_SHIFT 21 +#define NVFX_FP_OP_COND_SWZ_X_MASK (3 << 21) +#define NVFX_FP_OP_COND_SWZ_ALL_SHIFT 21 +#define NVFX_FP_OP_COND_SWZ_ALL_MASK (0xFF << 21) +#define NVFX_FP_OP_COND_SHIFT 18 +#define NVFX_FP_OP_COND_MASK (0x07 << 18) +# define NVFX_FP_OP_COND_FL 0 +# define NVFX_FP_OP_COND_LT 1 +# define NVFX_FP_OP_COND_EQ 2 +# define NVFX_FP_OP_COND_LE 3 +# define NVFX_FP_OP_COND_GT 4 +# define NVFX_FP_OP_COND_NE 5 +# define NVFX_FP_OP_COND_GE 6 +# define NVFX_FP_OP_COND_TR 7 + +/* high order bits of SRC1 */ +#define NV40_FP_OP_OPCODE_IS_BRANCH (1<<31) +#define NVFX_FP_OP_DST_SCALE_SHIFT 28 +#define NVFX_FP_OP_DST_SCALE_MASK (3 << 28) +#define NVFX_FP_OP_DST_SCALE_1X 0 +#define NVFX_FP_OP_DST_SCALE_2X 1 +#define NVFX_FP_OP_DST_SCALE_4X 2 +#define NVFX_FP_OP_DST_SCALE_8X 3 +#define NVFX_FP_OP_DST_SCALE_INV_2X 5 +#define NVFX_FP_OP_DST_SCALE_INV_4X 6 +#define NVFX_FP_OP_DST_SCALE_INV_8X 7 + +/* SRC1 LOOP */ +#define NV40_FP_OP_LOOP_INCR_SHIFT 19 +#define NV40_FP_OP_LOOP_INCR_MASK (0xFF << 19) +#define NV40_FP_OP_LOOP_INDEX_SHIFT 10 +#define NV40_FP_OP_LOOP_INDEX_MASK (0xFF << 10) +#define NV40_FP_OP_LOOP_COUNT_SHIFT 2 +#define NV40_FP_OP_LOOP_COUNT_MASK (0xFF << 2) + +/* SRC1 IF */ +#define NV40_FP_OP_ELSE_ID_SHIFT 2 +#define NV40_FP_OP_ELSE_ID_MASK (0xFF << 2) + +/* SRC1 CAL */ +#define NV40_FP_OP_IADDR_SHIFT 2 +#define NV40_FP_OP_IADDR_MASK (0xFF << 2) + +/* SRC1 REP + * I have no idea why there are 3 count values here.. but they + * have always been filled with the same value in my tests so + * far.. + */ +#define NV40_FP_OP_REP_COUNT1_SHIFT 2 +#define NV40_FP_OP_REP_COUNT1_MASK (0xFF << 2) +#define NV40_FP_OP_REP_COUNT2_SHIFT 10 +#define NV40_FP_OP_REP_COUNT2_MASK (0xFF << 10) +#define NV40_FP_OP_REP_COUNT3_SHIFT 19 +#define NV40_FP_OP_REP_COUNT3_MASK (0xFF << 19) + +/* SRC2 REP/IF */ +#define NV40_FP_OP_END_ID_SHIFT 2 +#define NV40_FP_OP_END_ID_MASK (0xFF << 2) + +/* high order bits of SRC2 */ +#define NVFX_FP_OP_INDEX_INPUT (1 << 30) +#define NV40_FP_OP_ADDR_INDEX_SHIFT 19 +#define NV40_FP_OP_ADDR_INDEX_MASK (0xF << 19) + +//== Register selection == +#define NVFX_FP_REG_TYPE_SHIFT 0 +#define NVFX_FP_REG_TYPE_MASK (3 << 0) +# define NVFX_FP_REG_TYPE_TEMP 0 +# define NVFX_FP_REG_TYPE_INPUT 1 +# define NVFX_FP_REG_TYPE_CONST 2 +#define NVFX_FP_REG_SRC_SHIFT 2 +#define NV30_FP_REG_SRC_MASK (31 << 2) +#define NV40_FP_REG_SRC_MASK (63 << 2) +#define NVFX_FP_REG_SRC_HALF (1 << 8) +#define NVFX_FP_REG_SWZ_ALL_SHIFT 9 +#define NVFX_FP_REG_SWZ_ALL_MASK (255 << 9) +#define NVFX_FP_REG_SWZ_X_SHIFT 9 +#define NVFX_FP_REG_SWZ_X_MASK (3 << 9) +#define NVFX_FP_REG_SWZ_Y_SHIFT 11 +#define NVFX_FP_REG_SWZ_Y_MASK (3 << 11) +#define NVFX_FP_REG_SWZ_Z_SHIFT 13 +#define NVFX_FP_REG_SWZ_Z_MASK (3 << 13) +#define NVFX_FP_REG_SWZ_W_SHIFT 15 +#define NVFX_FP_REG_SWZ_W_MASK (3 << 15) +# define NVFX_FP_SWIZZLE_X 0 +# define NVFX_FP_SWIZZLE_Y 1 +# define NVFX_FP_SWIZZLE_Z 2 +# define NVFX_FP_SWIZZLE_W 3 +#define NVFX_FP_REG_NEGATE (1 << 17) + +#ifndef NVFX_SHADER_NO_FUCKEDNESS +#define NVFXSR_NONE 0 +#define NVFXSR_OUTPUT 1 +#define NVFXSR_INPUT 2 +#define NVFXSR_TEMP 3 +#define NVFXSR_CONST 4 + +struct nvfx_sreg { + int type; + int index; + + int dst_scale; + + int negate; + int abs; + int swz[4]; + + int cc_update; + int cc_update_reg; + int cc_test; + int cc_test_reg; + int cc_swz[4]; +}; + +static INLINE struct nvfx_sreg +nvfx_sr(int type, int index) +{ + struct nvfx_sreg temp = { + .type = type, + .index = index, + .dst_scale = DEF_SCALE, + .abs = 0, + .negate = 0, + .swz = { 0, 1, 2, 3 }, + .cc_update = 0, + .cc_update_reg = 0, + .cc_test = DEF_CTEST, + .cc_test_reg = 0, + .cc_swz = { 0, 1, 2, 3 }, + }; + return temp; +} + +static INLINE struct nvfx_sreg +nvfx_sr_swz(struct nvfx_sreg src, int x, int y, int z, int w) +{ + struct nvfx_sreg dst = src; + + dst.swz[SWZ_X] = src.swz[x]; + dst.swz[SWZ_Y] = src.swz[y]; + dst.swz[SWZ_Z] = src.swz[z]; + dst.swz[SWZ_W] = src.swz[w]; + return dst; +} + +static INLINE struct nvfx_sreg +nvfx_sr_neg(struct nvfx_sreg src) +{ + src.negate = !src.negate; + return src; +} + +static INLINE struct nvfx_sreg +nvfx_sr_abs(struct nvfx_sreg src) +{ + src.abs = 1; + return src; +} + +static INLINE struct nvfx_sreg +nvfx_sr_scale(struct nvfx_sreg src, int scale) +{ + src.dst_scale = scale; + return src; +} +#endif + +#endif |