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nak: Use MemScope::GPU instead of MemScop::System

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MemScope::System has to synchronize with everything in the system,
including across PCIe so it's horribly slow.  MemScope::GPU, on the
other hand, only has to synchronize within the GPU.  This is way faster
and still satisfies all of Vulkan's requirements because Vulkan never
allows CPU<->GPU access without full semaphores and barriers.

Reviewed-by: Mel Henning <drawoc@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33649>
This commit is contained in:
Faith Ekstrand 2025-02-20 10:56:54 -06:00 • committed by Marge Bot
parent 13f7ea7b3d
commit 2b1a97b742
1 changed files with 8 additions and 8 deletions
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16
src/nouveau/compiler/nak/from_nir.rs
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@ -2326,7 +2326,7 @@ impl<'a> ShaderFromNir<'a> {
atom_op: atom_op,
atom_type: atom_type,
image_dim: dim,
mem_order: MemOrder::Strong(MemScope::System),
mem_order: MemOrder::Strong(MemScope::GPU),
mem_eviction_priority: self
.get_eviction_priority(intrin.access()),
});
@ -2345,7 +2345,7 @@ impl<'a> ShaderFromNir<'a> {
MemOrder::Weak
}
} else {
MemOrder::Strong(MemScope::System)
MemOrder::Strong(MemScope::GPU)
};
let comps = intrin.num_components;
@ -2380,7 +2380,7 @@ impl<'a> ShaderFromNir<'a> {
MemOrder::Weak
}
} else {
MemOrder::Strong(MemScope::System)
MemOrder::Strong(MemScope::GPU)
};
let comps = intrin.num_components;
@ -2423,7 +2423,7 @@ impl<'a> ShaderFromNir<'a> {
b.push_op(OpSuSt {
image_dim: dim,
mem_order: MemOrder::Strong(MemScope::System),
mem_order: MemOrder::Strong(MemScope::GPU),
mem_eviction_priority: self
.get_eviction_priority(intrin.access()),
mask: (1 << comps) - 1,
@ -2518,7 +2518,7 @@ impl<'a> ShaderFromNir<'a> {
atom_type: atom_type,
addr_offset: offset,
mem_space: MemSpace::Global(MemAddrType::A64),
mem_order: MemOrder::Strong(MemScope::System),
mem_order: MemOrder::Strong(MemScope::GPU),
mem_eviction_priority: MemEvictionPriority::Normal, // Note: no intrinic access
});
self.set_dst(&intrin.def, dst);
@ -2543,7 +2543,7 @@ impl<'a> ShaderFromNir<'a> {
atom_type: atom_type,
addr_offset: offset,
mem_space: MemSpace::Global(MemAddrType::A64),
mem_order: MemOrder::Strong(MemScope::System),
mem_order: MemOrder::Strong(MemScope::GPU),
mem_eviction_priority: MemEvictionPriority::Normal, // Note: no intrinic access
});
self.set_dst(&intrin.def, dst);
@ -2628,7 +2628,7 @@ impl<'a> ShaderFromNir<'a> {
{
MemOrder::Constant
} else {
MemOrder::Strong(MemScope::System)
MemOrder::Strong(MemScope::GPU)
};
let access = MemAccess {
mem_type: MemType::from_size(size_B, false),
@ -3072,7 +3072,7 @@ impl<'a> ShaderFromNir<'a> {
let access = MemAccess {
mem_type: MemType::from_size(size_B, false),
space: MemSpace::Global(MemAddrType::A64),
order: MemOrder::Strong(MemScope::System),
order: MemOrder::Strong(MemScope::GPU),
eviction_priority: self
.get_eviction_priority(intrin.access()),
};