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pan/bi: Add fp16 support for frcp/frsq 

More ops.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4470>
This commit is contained in:
Alyssa Rosenzweig 2020-04-06 10:36:10 -04:00 committed by Marge Bot
parent d7bb7b79a8
commit c37c799284
2 changed files with 15 additions and 2 deletions
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13
src/panfrost/bifrost/bi_pack.c
View File

@ -989,11 +989,20 @@ static unsigned
bi_pack_add_special(bi_instruction *ins, struct bi_registers *regs)
{
unsigned op = 0;
bool fp16 = ins->dest_type == nir_type_float16;
bool Y = ins->swizzle[0][0];
if (ins->op.special == BI_SPECIAL_FRCP) {
op = BIFROST_ADD_OP_FRCP_FAST_F32;
op = fp16 ?
(Y ? BIFROST_ADD_OP_FRCP_FAST_F16_Y :
BIFROST_ADD_OP_FRCP_FAST_F16_X) :
BIFROST_ADD_OP_FRCP_FAST_F32;
} else {
op = BIFROST_ADD_OP_FRSQ_FAST_F32;
op = fp16 ?
(Y ? BIFROST_ADD_OP_FRSQ_FAST_F16_Y :
BIFROST_ADD_OP_FRSQ_FAST_F16_X) :
BIFROST_ADD_OP_FRSQ_FAST_F32;
}
return bi_pack_add_1src(ins, regs, op);

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

@ -111,7 +111,11 @@ struct bifrost_fma_2src {
#define BIFROST_ADD_OP_BLEND (0x1952c)
#define BIFROST_ADD_OP_FRCP_FAST_F32 (0x0cc00)
#define BIFROST_ADD_OP_FRCP_FAST_F16_X (0x0ce10)
#define BIFROST_ADD_OP_FRCP_FAST_F16_Y (0x0ce30)
#define BIFROST_ADD_OP_FRSQ_FAST_F32 (0x0cc20)
#define BIFROST_ADD_OP_FRSQ_FAST_F16_X (0x0ce50)
#define BIFROST_ADD_OP_FRSQ_FAST_F16_Y (0x0ce70)
struct bifrost_add_inst {
unsigned src0 : 3;