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Merge pull request #4359 from ReinUsesLisp/clamp-shared
renderer_{opengl,vulkan}: Clamp shared memory to host's limit
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commit
7278c59d70
@ -913,11 +913,19 @@ void ARBDecompiler::DeclareCompute() {
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const ComputeInfo& info = registry.GetComputeInfo();
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AddLine("GROUP_SIZE {} {} {};", info.workgroup_size[0], info.workgroup_size[1],
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info.workgroup_size[2]);
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if (info.shared_memory_size_in_words > 0) {
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const u32 size_in_bytes = info.shared_memory_size_in_words * 4;
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AddLine("SHARED_MEMORY {};", size_in_bytes);
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AddLine("SHARED shared_mem[] = {{program.sharedmem}};");
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if (info.shared_memory_size_in_words == 0) {
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return;
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}
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const u32 limit = device.GetMaxComputeSharedMemorySize();
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u32 size_in_bytes = info.shared_memory_size_in_words * 4;
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if (size_in_bytes > limit) {
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LOG_ERROR(Render_OpenGL, "Shared memory size {} is clamped to host's limit {}",
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size_in_bytes, limit);
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size_in_bytes = limit;
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}
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AddLine("SHARED_MEMORY {};", size_in_bytes);
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AddLine("SHARED shared_mem[] = {{program.sharedmem}};");
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}
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void ARBDecompiler::DeclareInputAttributes() {
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@ -212,6 +212,7 @@ Device::Device()
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shader_storage_alignment = GetInteger<std::size_t>(GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT);
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max_vertex_attributes = GetInteger<u32>(GL_MAX_VERTEX_ATTRIBS);
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max_varyings = GetInteger<u32>(GL_MAX_VARYING_VECTORS);
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max_compute_shared_memory_size = GetInteger<u32>(GL_MAX_COMPUTE_SHARED_MEMORY_SIZE);
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has_warp_intrinsics = GLAD_GL_NV_gpu_shader5 && GLAD_GL_NV_shader_thread_group &&
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GLAD_GL_NV_shader_thread_shuffle;
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has_shader_ballot = GLAD_GL_ARB_shader_ballot;
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@ -250,6 +251,7 @@ Device::Device(std::nullptr_t) {
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shader_storage_alignment = 4;
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max_vertex_attributes = 16;
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max_varyings = 15;
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max_compute_shared_memory_size = 0x10000;
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has_warp_intrinsics = true;
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has_shader_ballot = true;
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has_vertex_viewport_layer = true;
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@ -52,6 +52,10 @@ public:
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return max_varyings;
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}
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u32 GetMaxComputeSharedMemorySize() const {
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return max_compute_shared_memory_size;
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}
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bool HasWarpIntrinsics() const {
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return has_warp_intrinsics;
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}
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@ -118,6 +122,7 @@ private:
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std::size_t shader_storage_alignment{};
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u32 max_vertex_attributes{};
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u32 max_varyings{};
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u32 max_compute_shared_memory_size{};
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bool has_warp_intrinsics{};
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bool has_shader_ballot{};
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bool has_vertex_viewport_layer{};
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@ -602,8 +602,15 @@ private:
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return;
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}
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const auto& info = registry.GetComputeInfo();
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if (const u32 size = info.shared_memory_size_in_words; size > 0) {
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code.AddLine("shared uint smem[{}];", size);
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if (u32 size = info.shared_memory_size_in_words * 4; size > 0) {
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const u32 limit = device.GetMaxComputeSharedMemorySize();
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if (size > limit) {
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LOG_ERROR(Render_OpenGL, "Shared memory size {} is clamped to host's limit {}",
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size, limit);
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size = limit;
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}
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code.AddLine("shared uint smem[{}];", size / 4);
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code.AddNewLine();
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}
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code.AddLine("layout (local_size_x = {}, local_size_y = {}, local_size_z = {}) in;",
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@ -122,6 +122,11 @@ public:
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return properties.limits.maxPushConstantsSize;
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}
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/// Returns the maximum size for shared memory.
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u32 GetMaxComputeSharedMemorySize() const {
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return properties.limits.maxComputeSharedMemorySize;
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}
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/// Returns true if ASTC is natively supported.
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bool IsOptimalAstcSupported() const {
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return is_optimal_astc_supported;
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@ -685,13 +685,19 @@ private:
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}
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t_smem_uint = TypePointer(spv::StorageClass::Workgroup, t_uint);
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const u32 smem_size = specialization.shared_memory_size;
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u32 smem_size = specialization.shared_memory_size * 4;
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if (smem_size == 0) {
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// Avoid declaring an empty array.
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return;
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}
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const auto element_count = static_cast<u32>(Common::AlignUp(smem_size, 4) / 4);
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const Id type_array = TypeArray(t_uint, Constant(t_uint, element_count));
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const u32 limit = device.GetMaxComputeSharedMemorySize();
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if (smem_size > limit) {
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LOG_ERROR(Render_Vulkan, "Shared memory size {} is clamped to host's limit {}",
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smem_size, limit);
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smem_size = limit;
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}
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const Id type_array = TypeArray(t_uint, Constant(t_uint, smem_size / 4));
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const Id type_pointer = TypePointer(spv::StorageClass::Workgroup, type_array);
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Name(type_pointer, "SharedMemory");
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