...on the load/store unit, not the ALUs. Looks goofy but hey.
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com>
---
src/gallium/drivers/panfrost/midgard/midgard.h | 5 +++++
src/gallium/drivers/panfrost/midgard/midgard_ops.c | 1 +
2 files changed, 6 insertions(+)
diff --git a/src/gallium/drivers/panfrost/midgard/midgard.h
b/src/gallium/drivers/panfrost/midgard/midgard.h
index 68e969ccf9c..5f7e4862e66 100644
--- a/src/gallium/drivers/panfrost/midgard/midgard.h
+++ b/src/gallium/drivers/panfrost/midgard/midgard.h
@@ -371,6 +371,11 @@ 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> */
+ midgard_op_ldst_perspective_division = 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,
diff --git a/src/gallium/drivers/panfrost/midgard/midgard_ops.c
b/src/gallium/drivers/panfrost/midgard/midgard_ops.c
index 693fb56124d..b8210a01ecb 100644
--- a/src/gallium/drivers/panfrost/midgard/midgard_ops.c
+++ b/src/gallium/drivers/panfrost/midgard/midgard_ops.c
@@ -153,6 +153,7 @@ 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] = "ldst_perspective_division",
[midgard_op_atomic_add] = "atomic_add",
[midgard_op_atomic_and] = "atomic_and",
--
2.20.1
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