nak: Add Ampere and Ada latency information

This adds the latency information provided by NVIDIA.  This is copied
from excel spreadsheets provided to Red Hat.

Acked-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33573>

src/nouveau/compiler/nak/lib.rs

@@ -30,6 +30,7 @@ mod sm50;
 mod sm70;
 mod sm70_encode;
 mod sm75_instr_latencies;
+mod sm80_instr_latencies;
 mod sph;
 mod spill_values;
 mod to_cssa;

src/nouveau/compiler/nak/sm70.rs

@@ -5,6 +5,7 @@ use crate::ir::*;
 use crate::legalize::LegalizeBuilder;
 use crate::sm70_encode::*;
 use crate::sm75_instr_latencies::SM75Latency;
+use crate::sm80_instr_latencies::SM80Latency;
 
 pub struct ShaderModel70 {
     sm: u8,
@@ -150,7 +151,9 @@ impl ShaderModel for ShaderModel70 {
             return false;
         }
 
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::needs_scoreboards(op)
+        } else if self.is_turing() {
             SM75Latency::needs_scoreboards(op)
         } else {
             !op.has_fixed_latency(self.sm())
@@ -182,7 +185,9 @@ impl ShaderModel for ShaderModel70 {
         read: &Op,
         src_idx: usize,
     ) -> u32 {
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::raw(write, dst_idx, Some(read), src_idx)
+        } else if self.is_turing() {
             SM75Latency::raw(write, dst_idx, Some(read), src_idx)
         } else {
             self.instr_latency(write, dst_idx)
@@ -196,7 +201,9 @@ impl ShaderModel for ShaderModel70 {
         write: &Op,
         dst_idx: usize,
     ) -> u32 {
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::war(read, src_idx, write, dst_idx)
+        } else if self.is_turing() {
             SM75Latency::war(read, src_idx, write, dst_idx)
         } else {
             // We assume the source gets read in the first 4 cycles.  We don't
@@ -213,7 +220,9 @@ impl ShaderModel for ShaderModel70 {
         b: &Op,
         b_dst_idx: usize,
     ) -> u32 {
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::waw(a, a_dst_idx, b, b_dst_idx, a_has_pred)
+        } else if self.is_turing() {
             SM75Latency::waw(a, a_dst_idx, b, b_dst_idx, a_has_pred)
         } else {
             // We know our latencies are wrong so assume the wrote could happen
@@ -223,7 +232,9 @@ impl ShaderModel for ShaderModel70 {
     }
 
     fn paw_latency(&self, write: &Op, dst_idx: usize) -> u32 {
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::raw(write, dst_idx, None, 0)
+        } else if self.is_turing() {
             SM75Latency::raw(write, dst_idx, None, 0)
         } else if self.is_volta() {
             match write {
@@ -236,7 +247,9 @@ impl ShaderModel for ShaderModel70 {
     }
 
     fn worst_latency(&self, write: &Op, dst_idx: usize) -> u32 {
-        if self.is_turing() {
+        if self.is_ampere() || self.is_ada() {
+            SM80Latency::raw(write, dst_idx, None, 0)
+        } else if self.is_turing() {
             SM75Latency::raw(write, dst_idx, None, 0)
         } else {
             self.instr_latency(write, dst_idx)