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pan/va: Add helpers for swapping bitwise sources

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Annoyingly different from Bifrost.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15223>
This commit is contained in:
Alyssa Rosenzweig
2021-07-27 13:24:22 -04:00
committed by Marge Bot
parent 619566dea1
commit edf284215d
1 changed files with 40 additions and 0 deletions
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src/panfrost/bifrost/valhall/valhall.h
+40
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@@ -105,6 +105,46 @@ struct va_opcode_info {
extern const struct va_opcode_info
valhall_opcodes[BI_NUM_OPCODES];
/* Bifrost specifies the source of bitwise operations as (A, B, shift), but
* Valhall specifies (A, shift, B). We follow Bifrost conventions in the
* compiler, so normalize.
*/
static inline bool
va_swap_12(enum bi_opcode op)
{
switch (op) {
case BI_OPCODE_LSHIFT_AND_I32:
case BI_OPCODE_LSHIFT_AND_V2I16:
case BI_OPCODE_LSHIFT_AND_V4I8:
case BI_OPCODE_LSHIFT_OR_I32:
case BI_OPCODE_LSHIFT_OR_V2I16:
case BI_OPCODE_LSHIFT_OR_V4I8:
case BI_OPCODE_LSHIFT_XOR_I32:
case BI_OPCODE_LSHIFT_XOR_V2I16:
case BI_OPCODE_LSHIFT_XOR_V4I8:
case BI_OPCODE_RSHIFT_AND_I32:
case BI_OPCODE_RSHIFT_AND_V2I16:
case BI_OPCODE_RSHIFT_AND_V4I8:
case BI_OPCODE_RSHIFT_OR_I32:
case BI_OPCODE_RSHIFT_OR_V2I16:
case BI_OPCODE_RSHIFT_OR_V4I8:
case BI_OPCODE_RSHIFT_XOR_I32:
case BI_OPCODE_RSHIFT_XOR_V2I16:
case BI_OPCODE_RSHIFT_XOR_V4I8:
return true;
default:
return false;
}
}
static inline struct va_src_info
va_src_info(enum bi_opcode op, unsigned src)
{
unsigned idx = (va_swap_12(op) && (src == 1 || src == 2)) ? (3 - src) : src;
return valhall_opcodes[op].srcs[idx];
}
#ifdef __cplusplus
} /* extern C */
#endif