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pan/bi: Add high-latency property for classes 

This is required to know how to schedule legally, and also influences
some issues relating to RA.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4061>
This commit is contained in:
Alyssa Rosenzweig 2020-03-03 13:55:33 -05:00 committed by Marge Bot
parent 546c301ff6
commit 07228a6895
2 changed files with 15 additions and 11 deletions
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22
src/panfrost/bifrost/bi_tables.c
View File

@ -28,27 +28,27 @@
unsigned bi_class_props[BI_NUM_CLASSES] = {
[BI_ADD] = BI_GENERIC | BI_MODS | BI_SCHED_ALL,
[BI_ATEST] = BI_SCHED_ADD,
[BI_BRANCH] = BI_SCHED_ADD,
[BI_ATEST] = BI_SCHED_HI_LATENCY,
[BI_BRANCH] = BI_SCHED_HI_LATENCY,
[BI_CMP] = BI_GENERIC | BI_MODS | BI_SCHED_ALL,
[BI_BLEND] = BI_ADD,
[BI_BLEND] = BI_SCHED_HI_LATENCY,
[BI_BITWISE] = BI_GENERIC | BI_SCHED_ALL,
[BI_CONVERT] = BI_SCHED_ALL | BI_SWIZZLABLE,
[BI_CSEL] = BI_SCHED_FMA,
[BI_DISCARD] = BI_SCHED_ADD,
[BI_DISCARD] = BI_SCHED_HI_LATENCY,
[BI_FMA] = BI_ROUNDMODE | BI_SCHED_FMA,
[BI_FREXP] = BI_SCHED_ALL,
[BI_LOAD] = BI_SCHED_ADD,
[BI_LOAD_ATTR] = BI_SCHED_ADD,
[BI_LOAD_VAR] = BI_SCHED_ADD,
[BI_LOAD_VAR_ADDRESS] = BI_SCHED_ADD,
[BI_LOAD] = BI_SCHED_HI_LATENCY,
[BI_LOAD_ATTR] = BI_SCHED_HI_LATENCY,
[BI_LOAD_VAR] = BI_SCHED_HI_LATENCY,
[BI_LOAD_VAR_ADDRESS] = BI_SCHED_HI_LATENCY,
[BI_MINMAX] = BI_GENERIC | BI_SCHED_ALL,
[BI_MOV] = BI_MODS | BI_SCHED_ALL,
[BI_SHIFT] = BI_SCHED_ALL,
[BI_STORE] = BI_SCHED_ADD,
[BI_STORE_VAR] = BI_SCHED_ADD,
[BI_STORE] = BI_SCHED_HI_LATENCY,
[BI_STORE_VAR] = BI_SCHED_HI_LATENCY,
[BI_SPECIAL] = BI_SCHED_ADD | BI_SCHED_SLOW,
[BI_SWIZZLE] = BI_SCHED_ALL | BI_SWIZZLABLE,
[BI_TEX] = BI_SCHED_ADD,
[BI_TEX] = BI_SCHED_HI_LATENCY,
[BI_ROUND] = BI_GENERIC | BI_ROUNDMODE | BI_SCHED_ALL,
};

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

@ -105,6 +105,10 @@ extern unsigned bi_class_props[BI_NUM_CLASSES];
/* Swizzling allowed for the 8/16-bit source */
#define BI_SWIZZLABLE (1 << 6)
/* For scheduling purposes this is a high latency instruction and must be at
* the end of a clause. Implies ADD */
#define BI_SCHED_HI_LATENCY ((1 << 7) | BI_SCHED_ADD)
/* It can't get any worse than csel4... can it? */
#define BIR_SRC_COUNT 4