Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---
src/gallium/auxiliary/tgsi/tgsi_info.c | 8 +++++
src/gallium/docs/source/tgsi.rst | 51 ++++++++++++++++++++++++++++++
src/gallium/include/pipe/p_shader_tokens.h | 11 ++++++-
3 files changed, 69 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_info.c
b/src/gallium/auxiliary/tgsi/tgsi_info.c
index 5bcc3c9..d03a920 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_info.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_info.c
@@ -223,6 +223,14 @@ static const struct tgsi_opcode_info
opcode_info[TGSI_OPCODE_LAST] =
{ 1, 2, 0, 0, 0, 0, COMP, "UMUL_HI", TGSI_OPCODE_UMUL_HI },
{ 1, 3, 1, 0, 0, 0, OTHR, "TG4", TGSI_OPCODE_TG4 },
{ 1, 2, 1, 0, 0, 0, OTHR, "LODQ", TGSI_OPCODE_LODQ },
+ { 1, 3, 0, 0, 0, 0, COMP, "IBFE", TGSI_OPCODE_IBFE },
+ { 1, 3, 0, 0, 0, 0, COMP, "UBFE", TGSI_OPCODE_UBFE },
+ { 1, 4, 0, 0, 0, 0, COMP, "BFI", TGSI_OPCODE_BFI },
+ { 1, 1, 0, 0, 0, 0, COMP, "BREV", TGSI_OPCODE_BREV },
+ { 1, 1, 0, 0, 0, 0, COMP, "POPC", TGSI_OPCODE_POPC },
+ { 1, 1, 0, 0, 0, 0, COMP, "LSB", TGSI_OPCODE_LSB },
+ { 1, 1, 0, 0, 0, 0, COMP, "IMSB", TGSI_OPCODE_IMSB },
+ { 1, 1, 0, 0, 0, 0, COMP, "UMSB", TGSI_OPCODE_UMSB },
};
const struct tgsi_opcode_info *
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst
index 0ea0759..95b069f 100644
--- a/src/gallium/docs/source/tgsi.rst
+++ b/src/gallium/docs/source/tgsi.rst
@@ -1558,6 +1558,57 @@ Support for these opcodes indicated by
PIPE_SHADER_CAP_INTEGERS (all of them?)
dst.w = |src.w|
+Bitwise ISA
+^^^^^^^^^^^
+These opcodes are used for bit-level manipulation of integers.
+
+.. opcode:: IBFE - Signed Bitfield Extract
+
+.. math::
+
+ value = src0
+
+ offset = src1
+
+ bits = src2
+
+ dst = bitfield\_extract(value, offset, bits)
+
+.. opcode:: UBFE - Unsigned Bitfield Extract
+
+.. math::
+
+ value = src0
+
+ offset = src1
+
+ bits = src2
+
+ dst = bitfield\_extract(value, offset, bits)
+
+.. opcode:: BFI - Bitfield Insert
+
+.. math::
+
+ base = src0
+
+ insert = src1
+
+ offset = src2
+
+ bits = src3
+
+ dst = bitfield\_insert(base, insert, offset, bits)
+
+.. opcode:: BREV - Bitfield Reverse
+
+.. opcode:: POPC - Population Count (Count Set Bits)
+
+.. opcode:: LSB - Index of lowest set bit
+
+.. opcode:: IMSB - Index of highest non-sign bit
+
+.. opcode:: UMSB - Index of highest 1-bit
Geometry ISA
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/src/gallium/include/pipe/p_shader_tokens.h
b/src/gallium/include/pipe/p_shader_tokens.h
index b537166..d095bd3 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -462,7 +462,16 @@ struct tgsi_property_data {
#define TGSI_OPCODE_LODQ 183
-#define TGSI_OPCODE_LAST 184
+#define TGSI_OPCODE_IBFE 184
+#define TGSI_OPCODE_UBFE 185
+#define TGSI_OPCODE_BFI 186
+#define TGSI_OPCODE_BREV 187
+#define TGSI_OPCODE_POPC 188
+#define TGSI_OPCODE_LSB 189
+#define TGSI_OPCODE_IMSB 190
+#define TGSI_OPCODE_UMSB 191
+
+#define TGSI_OPCODE_LAST 192
#define TGSI_SAT_NONE 0 /* do not saturate */
#define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
--
1.8.3.2
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