diff options
| author | Alyssa Rosenzweig <[email protected]> | 2019-04-05 05:37:37 +0000 |
|---|---|---|
| committer | Alyssa Rosenzweig <[email protected]> | 2019-04-07 16:01:12 +0000 |
| commit | 65816ad6e8df9663401ec8f0454228de8e2074e2 (patch) | |
| tree | ff25050c410995ead0e6a9da65b8173242776fb7 | |
| parent | 6cba9acb75865183ae887554cc617e2935f68472 (diff) | |
panfrost/midgard: Add ibitcount8 op
The mechanics of this opcode are a little opaque, but essentially, it's
used in 8-bit mode to do a bit count in parallel of a uint and then
doing a ton of clever iadd/imov ops to recombine.
v2: Correct opcode. Thank you to jernej on IRC for noticing this awkward
typo!
Signed-off-by: Alyssa Rosenzweig <[email protected]>
| -rw-r--r-- | src/gallium/drivers/panfrost/midgard/helpers.h | 1 | ||||
| -rw-r--r-- | src/gallium/drivers/panfrost/midgard/midgard.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/panfrost/midgard/helpers.h b/src/gallium/drivers/panfrost/midgard/helpers.h index 6cb00a58d68..4c2be223186 100644 --- a/src/gallium/drivers/panfrost/midgard/helpers.h +++ b/src/gallium/drivers/panfrost/midgard/helpers.h @@ -254,6 +254,7 @@ static unsigned alu_opcode_props[256] = { [midgard_alu_op_ior] = UNITS_ADD, [midgard_alu_op_ixor] = UNITS_ADD, [midgard_alu_op_ilzcnt] = UNITS_ADD, + [midgard_alu_op_ibitcount8] = UNITS_ADD, [midgard_alu_op_inot] = UNITS_MOST, [midgard_alu_op_ishl] = UNITS_ADD, [midgard_alu_op_iasr] = UNITS_ADD, diff --git a/src/gallium/drivers/panfrost/midgard/midgard.h b/src/gallium/drivers/panfrost/midgard/midgard.h index 2698a2b9bc6..6176dfbb1c9 100644 --- a/src/gallium/drivers/panfrost/midgard/midgard.h +++ b/src/gallium/drivers/panfrost/midgard/midgard.h @@ -86,6 +86,7 @@ typedef enum { midgard_alu_op_iandnot = 0x74, /* (a, b) -> a & ~b, used for not/b2f */ midgard_alu_op_ixor = 0x76, midgard_alu_op_ilzcnt = 0x78, /* Number of zeroes on left. 31 - ilzcnt(x) = findMSB(x) */ + midgard_alu_op_ibitcount8 = 0x7A, /* Counts bits in 8-bit increments */ midgard_alu_op_imov = 0x7B, midgard_alu_op_iabs = 0x7C, midgard_alu_op_feq = 0x80, @@ -501,6 +502,7 @@ static char *alu_opcode_names[256] = { [midgard_alu_op_iandnot] = "iandnot", [midgard_alu_op_ixor] = "ixor", [midgard_alu_op_ilzcnt] = "ilzcnt", + [midgard_alu_op_ibitcount8] = "ibitcount8", [midgard_alu_op_feq] = "feq", [midgard_alu_op_fne] = "fne", [midgard_alu_op_flt] = "flt", |