diff options
Diffstat (limited to 'src/gallium/drivers/nouveau/codegen/nv50_ir.h')
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir.h b/src/gallium/drivers/nouveau/codegen/nv50_ir.h index 0b220cc48de..d5c9570a56b 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir.h +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir.h @@ -58,6 +58,9 @@ enum operation OP_FMA, OP_SAD, // abs(src0 - src1) + src2 OP_SHLADD, + // extended multiply-add (GM107+), does a lot of things. + // see envytools for detailed documentation + OP_XMAD, OP_ABS, OP_NEG, OP_NOT, @@ -256,6 +259,29 @@ enum operation #define NV50_IR_SUBOP_MINMAX_MED 2 #define NV50_IR_SUBOP_MINMAX_HIGH 3 +// xmad(src0, src1, 0) << 16 + src2 +#define NV50_IR_SUBOP_XMAD_PSL (1 << 0) +// (xmad(src0, src1, src2) & 0xffff) | (src1 << 16) +#define NV50_IR_SUBOP_XMAD_MRG (1 << 1) +// xmad(src0, src1, src2.lo) +#define NV50_IR_SUBOP_XMAD_CLO (1 << 2) +// xmad(src0, src1, src2.hi) +#define NV50_IR_SUBOP_XMAD_CHI (2 << 2) +// if both operands to the multiplication are non-zero, subtract 65536 for each +// negative operand +#define NV50_IR_SUBOP_XMAD_CSFU (3 << 2) +// xmad(src0, src1, src2) + src1 << 16 +#define NV50_IR_SUBOP_XMAD_CBCC (4 << 2) +#define NV50_IR_SUBOP_XMAD_CMODE_SHIFT 2 +#define NV50_IR_SUBOP_XMAD_CMODE_MASK (0x7 << NV50_IR_SUBOP_XMAD_CMODE_SHIFT) + +// use the high 16 bits instead of the low 16 bits for the multiplication. +// if the instruction's sType is signed, sign extend the operand from 16 bits +// to 32 before multiplication. +#define NV50_IR_SUBOP_XMAD_H1_SHIFT 5 +#define NV50_IR_SUBOP_XMAD_H1(i) (1 << (NV50_IR_SUBOP_XMAD_H1_SHIFT + (i))) +#define NV50_IR_SUBOP_XMAD_H1_MASK (0x3 << NV50_IR_SUBOP_XMAD_H1_SHIFT) + enum DataType { TYPE_NONE, |