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panfrost/midgard: fpow is a two-part operation 

In fact, the native "fpow" instruction only does half of it; more work
is needed for the actual instruction. For now, just lower.

Fixes: 1ea42894c ("panfrost/midgard: Implement fpow")

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
This commit is contained in:
Alyssa Rosenzweig 2019-03-26 04:48:20 +00:00
parent 12d1d99fee
commit 04a72391f3
4 changed files with 4 additions and 4 deletions
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2
src/gallium/drivers/panfrost/midgard/helpers.h
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@ -234,7 +234,7 @@ static unsigned alu_opcode_props[256] = {
[midgard_alu_op_frcp] = UNIT_VLUT,
[midgard_alu_op_frsqrt] = UNIT_VLUT,
[midgard_alu_op_fsqrt] = UNIT_VLUT,
[midgard_alu_op_fpow] = UNIT_VLUT,
[midgard_alu_op_fpow_pt1] = UNIT_VLUT,
[midgard_alu_op_fexp2] = UNIT_VLUT,
[midgard_alu_op_flog2] = UNIT_VLUT,

4
src/gallium/drivers/panfrost/midgard/midgard.h
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@ -126,7 +126,7 @@ typedef enum {
midgard_alu_op_fcsel = 0xC5,
midgard_alu_op_fround = 0xC6,
midgard_alu_op_fatan_pt2 = 0xE8,
midgard_alu_op_fpow = 0xEC,
midgard_alu_op_fpow_pt1 = 0xEC,
midgard_alu_op_frcp = 0xF0,
midgard_alu_op_frsqrt = 0xF2,
midgard_alu_op_fsqrt = 0xF3,
@ -498,7 +498,7 @@ static char *alu_opcode_names[256] = {
[midgard_alu_op_frcp] = "frcp",
[midgard_alu_op_frsqrt] = "frsqrt",
[midgard_alu_op_fsqrt] = "fsqrt",
[midgard_alu_op_fpow] = "fpow",
[midgard_alu_op_fpow_pt1] = "fpow_pt1",
[midgard_alu_op_fexp2] = "fexp2",
[midgard_alu_op_flog2] = "flog2",
[midgard_alu_op_fsin] = "fsin",

1
src/gallium/drivers/panfrost/midgard/midgard_compile.c
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@ -1016,7 +1016,6 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr)
ALU_CASE(frcp, frcp);
ALU_CASE(frsq, frsqrt);
ALU_CASE(fsqrt, fsqrt);
ALU_CASE(fpow, fpow);
ALU_CASE(fexp2, fexp2);
ALU_CASE(flog2, flog2);

1
src/gallium/drivers/panfrost/midgard/midgard_compile.h
View File

@ -73,6 +73,7 @@ static const nir_shader_compiler_options midgard_nir_options = {
.lower_fdiv = true,
.lower_idiv = true,
.lower_isign = true,
.lower_fpow = true,
.vertex_id_zero_based = true,
.lower_extract_byte = true,