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panfrost/midgard: Add perspective division opcodes

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...on the load/store unit, not the ALUs. Looks goofy but hey.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-06-10 11:05:40 -07:00
parent b0396d6dda
commit fc472007e7
2 changed files with 9 additions and 0 deletions
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7
src/gallium/drivers/panfrost/midgard/midgard.h
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@ -371,6 +371,13 @@ typedef enum {
/* Used in OpenCL. Probably can ld other things as well */
midgard_op_ld_global_id = 0x10,
/* The L/S unit can do perspective division a clock faster than the ALU
* if you're lucky. Put the vec4 in r27, and call with 0x24 as the
* unknown state; the output will be <x/w, y/w, z/w, 1>. Replace w with
* z for the z version */
midgard_op_ldst_perspective_division_z = 0x12,
midgard_op_ldst_perspective_division_w = 0x13,
/* val in r27.y, address embedded, outputs result to argument. Invert val for sub. Let val = +-1 for inc/dec. */
midgard_op_atomic_add = 0x40,
midgard_op_atomic_and = 0x44,

2
src/gallium/drivers/panfrost/midgard/midgard_ops.c
View file

@ -153,6 +153,8 @@ struct mir_op_props alu_opcode_props[256] = {
const char *load_store_opcode_names[256] = {
[midgard_op_st_cubemap_coords] = "st_cubemap_coords",
[midgard_op_ld_global_id] = "ld_global_id",
[midgard_op_ldst_perspective_division_z] = "ldst_perspective_division_z",
[midgard_op_ldst_perspective_division_w] = "ldst_perspective_division_w",
[midgard_op_atomic_add] = "atomic_add",
[midgard_op_atomic_and] = "atomic_and",