commit:     24b6befbdc895b920d307417a5067bfb90e5d5fa
Author:     Sv. Lockal <lockalsash <AT> gmail <DOT> com>
AuthorDate: Fri Jul 11 07:37:55 2025 +0000
Commit:     Alfredo Tupone <tupone <AT> gentoo <DOT> org>
CommitDate: Fri Jul 11 10:04:59 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=24b6befb

sci-ml/caffe2: fix gfx101x compilation and memefficient linkage

Closes: https://bugs.gentoo.org/959808
Bug: https://bugs.gentoo.org/956674
Signed-off-by: Sv. Lockal <lockalsash <AT> gmail.com>
Part-of: https://github.com/gentoo/gentoo/pull/42956
Closes: https://github.com/gentoo/gentoo/pull/42956
Signed-off-by: Alfredo Tupone <tupone <AT> gentoo.org>

 ...ffe2-2.7.1-r2.ebuild => caffe2-2.7.1-r3.ebuild} |   6 +
 .../caffe2/files/caffe2-2.7.1-aotriton-fixes.patch |  27 ++++
 .../files/composable-kernel-6.4.1-expand-isa.patch | 141 +++++++++++++++++++++
 3 files changed, 174 insertions(+)

diff --git a/sci-ml/caffe2/caffe2-2.7.1-r2.ebuild 
b/sci-ml/caffe2/caffe2-2.7.1-r3.ebuild
similarity index 97%
rename from sci-ml/caffe2/caffe2-2.7.1-r2.ebuild
rename to sci-ml/caffe2/caffe2-2.7.1-r3.ebuild
index 4ccb6c07061c..c314b266cdc3 100644
--- a/sci-ml/caffe2/caffe2-2.7.1-r2.ebuild
+++ b/sci-ml/caffe2/caffe2-2.7.1-r3.ebuild
@@ -147,6 +147,7 @@ PATCHES=(
        "${FILESDIR}"/${PN}-2.7.0-glog-0.7.1.patch
        "${FILESDIR}"/${PN}-2.7.0-llvm.patch
        "${FILESDIR}"/${PN}-2.7.1-ck-config.patch
+       "${FILESDIR}"/${PN}-2.7.1-aotriton-fixes.patch
 )
 
 src_prepare() {
@@ -221,6 +222,11 @@ src_prepare() {
                sed -e 
"s:third_party/composable_kernel:../composable_kernel-${CK_COMMIT}:g" \
                        -i aten/src/ATen/CMakeLists.txt || die
 
+               # Bug 959808: fix for gfx101x targets
+               pushd "${WORKDIR}/composable_kernel-${CK_COMMIT}" > /dev/null 
|| die
+               eapply "${FILESDIR}"/composable-kernel-6.4.1-expand-isa.patch
+               popd > /dev/null || die
+
                if tc-is-clang; then
                        # Systemwide gcc (for absl and at::TensorBase) + hipcc 
(llvm>=18) need abi-compat=17.
                        # But systemwide clang>=18 + hipcc (>=llvm-18) need 
opposite!

diff --git a/sci-ml/caffe2/files/caffe2-2.7.1-aotriton-fixes.patch 
b/sci-ml/caffe2/files/caffe2-2.7.1-aotriton-fixes.patch
new file mode 100644
index 000000000000..1d2c7bf8f89d
--- /dev/null
+++ b/sci-ml/caffe2/files/caffe2-2.7.1-aotriton-fixes.patch
@@ -0,0 +1,27 @@
+Fix installation with aotriton
+
+Upstream bug: https://github.com/pytorch/pytorch/issues/158109
+--- a/cmake/External/aotriton.cmake
++++ b/cmake/External/aotriton.cmake
+@@ -43,10 +43,6 @@ if(NOT __AOTRITON_INCLUDED)
+ 
+   # Note it is INSTALL"ED"
+   if(DEFINED ENV{AOTRITON_INSTALLED_PREFIX})
+-    install(DIRECTORY
+-            $ENV{AOTRITON_INSTALLED_PREFIX}/lib64
+-            $ENV{AOTRITON_INSTALLED_PREFIX}/include
+-            DESTINATION ${__AOTRITON_INSTALL_DIR})
+     set(__AOTRITON_INSTALL_DIR "$ENV{AOTRITON_INSTALLED_PREFIX}")
+     message(STATUS "Using Preinstalled AOTriton at ${__AOTRITON_INSTALL_DIR}")
+   elseif(DEFINED ENV{AOTRITON_INSTALL_FROM_SOURCE})
+--- a/caffe2/CMakeLists.txt
++++ b/caffe2/CMakeLists.txt
+@@ -921,7 +921,7 @@ if(USE_ROCM)
+   set(CUDA_LINK_LIBRARIES_KEYWORD PRIVATE)
+   list(APPEND Caffe2_HIP_SRCS ${GENERATED_CXX_TORCH_CUDA})
+   hip_add_library(torch_hip ${Caffe2_HIP_SRCS})
+-  if(USE_FLASH_ATTENTION)
++  if(USE_FLASH_ATTENTION OR USE_MEM_EFF_ATTENTION)
+     target_link_libraries(torch_hip PRIVATE __caffe2_aotriton)
+   endif()
+   set(CUDA_LINK_LIBRARIES_KEYWORD)

diff --git a/sci-ml/caffe2/files/composable-kernel-6.4.1-expand-isa.patch 
b/sci-ml/caffe2/files/composable-kernel-6.4.1-expand-isa.patch
new file mode 100644
index 000000000000..8a3fb4e1ec6d
--- /dev/null
+++ b/sci-ml/caffe2/files/composable-kernel-6.4.1-expand-isa.patch
@@ -0,0 +1,141 @@
+Fix for "undeclared identifier 'CK_BUFFER_RESOURCE_3RD_DWORD'" for 
AMDGPU_TARGETS="gfx1012".
+Combines of 3 patches from 
https://github.com/ROCm/composable_kernel/issues/775#issuecomment-2726315348
+
+Bug: https://bugs.gentoo.org/947583
+Bug: https://bugs.gentoo.org/show_bug.cgi?id=959808
+--- a/include/ck/ck.hpp
++++ b/include/ck/ck.hpp
+@@ -82,7 +82,7 @@ CK_DECLARE_ENV_VAR_BOOL(CK_LOGGING)
+ #define CK_BUFFER_RESOURCE_3RD_DWORD -1
+ #elif defined(__gfx803__) || defined(__gfx900__) || defined(__gfx906__) || 
defined(__gfx9__)
+ #define CK_BUFFER_RESOURCE_3RD_DWORD 0x00020000
+-#elif defined(__gfx103__)
++#elif defined(__gfx101__) || defined(__gfx103__)
+ #define CK_BUFFER_RESOURCE_3RD_DWORD 0x31014000
+ #elif defined(__gfx11__) || defined(__gfx12__)
+ #define CK_BUFFER_RESOURCE_3RD_DWORD 0x31004000
+@@ -90,12 +90,12 @@ CK_DECLARE_ENV_VAR_BOOL(CK_LOGGING)
+ 
+ // FMA instruction
+ #ifndef __HIP_DEVICE_COMPILE__                   // for host code, define 
nothing
+-#elif defined(__gfx803__) || defined(__gfx900__) // for GPU code
+-#define CK_USE_AMD_V_MAC_F32
+-#elif defined(__gfx906__) || defined(__gfx9__) || defined(__gfx103__) // for 
GPU code
++#elif defined(__gfx906__) || defined(__gfx9__) || defined(__gfx103__) || 
defined(__gfx1011__) || defined(__gfx1012__) // for GPU code
+ #define CK_USE_AMD_V_FMAC_F32
+ #define CK_USE_AMD_V_DOT2_F32_F16
+ #define CK_USE_AMD_V_DOT4_I32_I8
++#elif defined(__gfx803__) || defined(__gfx900__) || defined(__gfx101__) // 
for GPU code
++#define CK_USE_AMD_V_MAC_F32
+ #elif defined(__gfx11__) || defined(__gfx12__)
+ #define CK_USE_AMD_V_FMAC_F32
+ #define CK_USE_AMD_V_DOT2_F32_F16
+--- 
a/include/ck/tensor_operation/gpu/device/impl/device_batched_gemm_multiple_d_dl.hpp
++++ 
b/include/ck/tensor_operation/gpu/device/impl/device_batched_gemm_multiple_d_dl.hpp
+@@ -71,7 +71,7 @@ __global__ void
+             const Block2CTileMap block_2_ctile_map)
+ {
+ #if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx908__) ||         \
+-    defined(__gfx90a__) || defined(__gfx94__) || defined(__gfx103__) || 
defined(__gfx11__) || \
++    defined(__gfx90a__) || defined(__gfx94__) || defined(__gfx101__) || 
defined(__gfx103__) || defined(__gfx11__) || \
+     defined(__gfx12__))
+ 
+     const index_t num_blocks_per_batch =
+--- a/include/ck/tensor_operation/gpu/device/impl/device_gemm_multiple_d_dl.hpp
++++ b/include/ck/tensor_operation/gpu/device/impl/device_gemm_multiple_d_dl.hpp
+@@ -51,7 +51,7 @@ __global__ void
+             const Block2CTileMap block_2_ctile_map)
+ {
+ #if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx9__) || \
+-    defined(__gfx103__) || defined(__gfx11__) || defined(__gfx12__))
++    defined(__gfx101__) || defined(__gfx103__) || defined(__gfx11__) || 
defined(__gfx12__))
+ 
+     constexpr index_t shared_block_size =
+         GridwiseGemm::GetSharedMemoryNumberOfByte() / sizeof(ABDataType);
+--- 
a/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_dl.hpp
++++ 
b/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_bwd_weight_dl.hpp
+@@ -48,7 +48,7 @@ __global__ void
+             const Block2CTileMap block_2_ctile_map,
+             const ComputePtrOffsetOfBatch compute_ptr_offset_of_batch)
+ {
+-#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx103__) ||         \
++#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx101__) || defined(__gfx103__) ||         \
+     defined(__gfx90a__) || defined(__gfx908__) || defined(__gfx94__) || 
defined(__gfx11__) || \
+     defined(__gfx12__))
+     const index_t num_blocks_per_batch =
+--- 
a/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_fwd_dl_multiple_d_nhwc_kyxc_nhwk.hpp
++++ 
b/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_fwd_dl_multiple_d_nhwc_kyxc_nhwk.hpp
+@@ -90,7 +90,7 @@ __global__ void
+             const Block2CTileMap block_2_ctile_map,
+             const ComputePtrOffsetOfBatch compute_ptr_offset_of_batch)
+ {
+-#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx103__) ||         \
++#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx101__) || defined(__gfx103__) ||         \
+     defined(__gfx90a__) || defined(__gfx908__) || defined(__gfx94__) || 
defined(__gfx11__) || \
+     defined(__gfx12__))
+     // offset base pointer for each work-group
+--- 
a/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_fwd_dl_nhwc_kyxc_nhwk.hpp
++++ 
b/include/ck/tensor_operation/gpu/device/impl/device_grouped_conv_fwd_dl_nhwc_kyxc_nhwk.hpp
+@@ -106,7 +106,7 @@ __global__ void
+             const Block2CTileMap block_2_ctile_map,
+             const ComputePtrOffsetOfBatch compute_ptr_offset_of_batch)
+ {
+-#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx103__) || \
++#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx101__) || defined(__gfx103__) || \
+     defined(__gfx11__) || defined(__gfx12__))
+     // offset base pointer for each work-group
+     const index_t num_blocks_per_batch =
+--- 
a/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_multiple_d_dl.hpp
++++ 
b/include/ck/tensor_operation/gpu/device/impl/device_grouped_gemm_multiple_d_dl.hpp
+@@ -40,7 +40,7 @@ __global__ void
+                                           const CDEElementwiseOperation 
cde_element_op)
+ {
+ #if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx908__) ||         \
+-    defined(__gfx90a__) || defined(__gfx103__) || defined(__gfx11__) || 
defined(__gfx94__) || \
++    defined(__gfx90a__) || defined(__gfx101__) || defined(__gfx103__) || 
defined(__gfx11__) || defined(__gfx94__) || \
+     defined(__gfx12__))
+     __shared__ char p_shared[GridwiseGemm::GetSharedMemoryNumberOfByte()];
+ 
+--- a/include/ck/tensor_operation/gpu/grid/gridwise_gemm_dpp.hpp
++++ b/include/ck/tensor_operation/gpu/grid/gridwise_gemm_dpp.hpp
+@@ -28,7 +28,7 @@ __global__ void
+ #endif
+         kernel_gemm_dpp(const typename GridwiseGemm::Argument karg)
+ {
+-#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx103__) || 
defined(__gfx11__))
++#if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx101__) || 
defined(__gfx103__) || defined(__gfx11__))
+     __shared__ char p_shared[GridwiseGemm::GetSharedMemoryNumberOfByte()];
+ 
+     const auto a_grid_desc_ak0_m_ak1 = amd_wave_read_first_lane(
+--- a/include/ck/tensor_operation/gpu/grid/gridwise_tensor_rearrange.hpp
++++ b/include/ck/tensor_operation/gpu/grid/gridwise_tensor_rearrange.hpp
+@@ -36,7 +36,7 @@ __global__ void
+                                 const ComputePtrOffsetOfStridedBatch 
compute_ptr_offset_of_batch)
+ {
+ #if(!defined(__HIP_DEVICE_COMPILE__) || defined(__gfx906__) || 
defined(__gfx908__) ||         \
+-    defined(__gfx90a__) || defined(__gfx94__) || defined(__gfx103__) || 
defined(__gfx11__) || \
++    defined(__gfx90a__) || defined(__gfx94__) || defined(__gfx101__) || 
defined(__gfx103__) || defined(__gfx11__) || \
+     defined(__gfx12__))
+     GridwiseTensorRearrangeKernel::Run(in_grid_desc,
+                                        p_in_global,
+--- a/include/ck_tile/core/config.hpp
++++ b/include/ck_tile/core/config.hpp
+@@ -10,6 +10,9 @@
+ #if defined(__gfx940__) || defined(__gfx941__) || defined(__gfx942__) || 
defined(__gfx950__)
+ #define __gfx94__
+ #endif
++#if defined(__gfx1010__) || defined(__gfx1011__) || defined(__gfx1012__)
++#define __gfx101__
++#endif
+ #if defined(__gfx1030__) || defined(__gfx1031__) || defined(__gfx1032__) || \
+     defined(__gfx1034__) || defined(__gfx1035__) || defined(__gfx1036__) || \
+     defined(__gfx10_3_generic__)
+@@ -199,7 +202,7 @@
+ #elif defined(__gfx803__) || defined(__gfx900__) || defined(__gfx906__) || \
+     defined(__gfx9__) // for GPU code
+ #define CK_TILE_BUFFER_RESOURCE_3RD_DWORD 0x00020000
+-#elif defined(__gfx103__) // for GPU code
++#elif defined(__gfx101__) || defined(__gfx103__) // for GPU code
+ #define CK_TILE_BUFFER_RESOURCE_3RD_DWORD 0x31014000
+ #elif defined(__gfx11__) || defined(__gfx12__) // for GPU code
+ #define CK_TILE_BUFFER_RESOURCE_3RD_DWORD 0x31004000

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