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pan/bit: Add FMA tests 

Now that the earlier reg ctrl issue is fixed these should pass.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4458>
This commit is contained in:
Alyssa Rosenzweig 2020-04-01 18:27:54 -04:00 committed by Marge Bot
parent 78ba6d50a4
commit 069189ff0f
2 changed files with 60 additions and 2 deletions
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58
src/panfrost/bifrost/test/bi_test_pack.c
View File

@ -209,6 +209,43 @@ bit_fmod_helper(struct panfrost_device *dev,
}
}
static void
bit_fma_helper(struct panfrost_device *dev,
unsigned size, uint32_t *input, enum bit_debug debug)
{
nir_alu_type T = nir_type_float | size;
bi_instruction ins = {
.type = BI_FMA,
.src = {
BIR_INDEX_REGISTER | 0,
BIR_INDEX_REGISTER | 1,
BIR_INDEX_REGISTER | 2,
},
.src_types = { T, T, T },
.dest = BIR_INDEX_REGISTER | 3,
.dest_type = T,
};
for (unsigned outmod = 0; outmod < 4; ++outmod) {
for (unsigned inmod = 0; inmod < 8; ++inmod) {
ins.outmod = outmod;
ins.src_neg[0] = (inmod & 0x1);
ins.src_neg[1] = (inmod & 0x2);
ins.src_neg[2] = (inmod & 0x4);
if (!bit_test_single(dev, &ins, input, true, debug)) {
fprintf(stderr, "FAIL: fma%u%s.%u\n",
size,
outmod ? bi_output_mod_name(outmod) : ".none",
inmod);
}
}
}
}
void
bit_fmod(struct panfrost_device *dev, enum bit_debug debug)
{
@ -228,3 +265,24 @@ bit_fmod(struct panfrost_device *dev, enum bit_debug debug)
bit_fmod_helper(dev, BI_ADD, sz, true, input, debug);
}
}
void
bit_fma(struct panfrost_device *dev, enum bit_debug debug)
{
float input32[4] = { 0.2, 1.6, -3.5, 0.0 };
uint32_t input16[4] = {
_mesa_float_to_half(input32[0]) | (_mesa_float_to_half(-1.8) << 16),
_mesa_float_to_half(input32[1]) | (_mesa_float_to_half(0.6) << 16),
_mesa_float_to_half(input32[1]) | (_mesa_float_to_half(16.2) << 16),
0
};
for (unsigned sz = 16; sz <= 32; sz *= 2) {
uint32_t *input =
(sz == 16) ? input16 :
(uint32_t *) input32;
bit_fma_helper(dev, sz, input, debug);
}
}

4
src/panfrost/bifrost/test/bit.h
View File

@ -69,8 +69,8 @@ bit_step(struct bit_state *s, bi_instruction *ins, bool FMA);
/* Packing tests */
void
bit_fmod(struct panfrost_device *dev, enum bit_debug debug);
void bit_fmod(struct panfrost_device *dev, enum bit_debug debug);
void bit_fma(struct panfrost_device *dev, enum bit_debug debug);
#endif