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Implement GGML_CPU_ALL_VARIANTS for PowerPC (#14286)

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* Add PowerPC feature detection and scoring

* ggml-cpu: Implement GGML_CPU_ALL_VARIANTS for PowerPC

* ggml-cpu: Delay some initializations until function is called

When using GGML_BACKEND_DL=ON, these initializations might use
instructions that are not supported by the current CPU.

---------

Co-authored-by: Diego Devesa <slarengh@gmail.com>
This commit is contained in:
Christian Kastner
2025-06-20 12:17:32 +00:00
committed by GitHub
parent 88fc854b4b
commit 6369be0735
4 changed files with 135 additions and 14 deletions
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17
ggml/src/CMakeLists.txt
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@@ -286,6 +286,10 @@ function(ggml_add_cpu_backend_variant tag_name)
foreach (feat ${ARGN})
set(GGML_INTERNAL_${feat} ON)
endforeach()
elseif (GGML_SYSTEM_ARCH STREQUAL "PowerPC")
foreach (feat ${ARGN})
set(GGML_INTERNAL_${feat} ON)
endforeach()
endif()
ggml_add_cpu_backend_variant_impl(${tag_name})
@@ -337,6 +341,19 @@ if (GGML_CPU_ALL_VARIANTS)
else()
message(FATAL_ERROR "Unsupported ARM target OS: ${CMAKE_SYSTEM_NAME}")
endif()
elseif (GGML_SYSTEM_ARCH STREQUAL "PowerPC")
if (CMAKE_SYSTEM_NAME MATCHES "Linux")
ggml_add_cpu_backend_variant(power0)
ggml_add_cpu_backend_variant(power7_1 POWER7)
ggml_add_cpu_backend_variant(power7_2 POWER7 VSX)
ggml_add_cpu_backend_variant(power8_1 POWER8)
ggml_add_cpu_backend_variant(power8_2 POWER8 VSX)
ggml_add_cpu_backend_variant(power9 POWER9 VSX)
ggml_add_cpu_backend_variant(power10 POWER10 VSX)
ggml_add_cpu_backend_variant(power11 POWER11 VSX)
else()
message(FATAL_ERROR "Unsupported PowerPC target OS: ${CMAKE_SYSTEM_NAME}")
endif()
else()
message(FATAL_ERROR "GGML_CPU_ALL_VARIANTS not yet supported with ${GGML_SYSTEM_ARCH} on ${CMAKE_SYSTEM_NAME}")
endif()