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https://github.com/Droid-Deck/DroidDeck.git
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On some Adreno devices (the Retroid Pocket Duo) SELinux hides kgsl's sysfs nodes from apps, so the HUD showed no GPU % and no GPU clock. Devices whose nodes are readable keep using them; nothing changes there or on GPUs without kgsl. Where the nodes are blocked: - GPU %: a native reader maps kgsl's memstore read-only (any kgsl client may) and samples the ringbuffer start/end timestamps once a millisecond while a HUD is shown. That covers all GPU work, Android's own composition included. - Backup for GPU %: an implicit Vulkan layer in the guest (tools/gpuload) and the compositor time their own GPU work with timestamp queries. It runs until the memstore stamps are seen moving, and for the whole session if they never move. - GPU clock: a small GPU job of our own reads the always-on and RBBM cycle counters (libgpuclock). The HUD diagnostics export lists which source each GPU value came from. tools/gpuload/build.sh takes the Vulkan headers from build_local.sh's NDK first and keeps NDK paths with spaces intact.
54 lines
2.6 KiB
Bash
Executable File
54 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Builds VK_LAYER_DROIDDECK_gpu_load for the arm64 guest: tools/gpuload/build.sh [--native] OUT
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# OUT gets libVkLayer_droiddeck_gpuload.so and its implicit-layer manifest.
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set -euo pipefail
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here=$(cd "$(dirname "$0")" && pwd)
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repo=$(cd "$here/../.." && pwd)
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. "$repo/tools/docker_platform.sh"
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native=0
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if [ "${1:-}" = --native ]; then native=1; shift; fi
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out=${1:?usage: tools/gpuload/build.sh [--native] OUT}
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case "$out" in /*) ;; *) out="$PWD/$out" ;; esac
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vkinc=${VK_INCLUDE:-}
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if [ -z "$vkinc" ]; then
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ndks=("${NDK:-}" "${ANDROID_NDK_HOME:-}" "${ANDROID_NDK_LATEST_HOME:-}")
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sdk_ndks=("${ANDROID_HOME:-$HOME/Library/Android/sdk}"/ndk/*)
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for ((i = ${#sdk_ndks[@]} - 1; i >= 0; i--)); do ndks+=("${sdk_ndks[i]}"); done
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for ndk in "${ndks[@]}"; do
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[ -n "$ndk" ] && [ -d "$ndk" ] || continue
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for cand in "$ndk"/toolchains/llvm/prebuilt/*/sysroot/usr/include; do
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if [ -f "$cand/vulkan/vk_layer.h" ]; then vkinc=$cand; break 2; fi
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done
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done
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fi
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[ -n "$vkinc" ] && [ -f "$vkinc/vulkan/vulkan_core.h" ] || { echo "tools/gpuload/build.sh: no Vulkan headers (set VK_INCLUDE)" >&2; exit 1; }
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work="$repo/build/gpuload"
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rm -rf "$work" && mkdir -p "$work/include" "$work/out"
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cp -R "$vkinc/vulkan" "$work/include/"
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if [ -d "$vkinc/vk_video" ]; then cp -R "$vkinc/vk_video" "$work/include/"; fi
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cmd=(sh -c '
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set -e
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cc -std=c11 -O2 -Wall -Wextra -Werror -Itools/gpuload/src -o build/gpuload/test_gpuload_busy tools/gpuload/tests/test_gpuload_busy.c
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build/gpuload/test_gpuload_busy
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cc -std=c11 -O2 -Wall -Wextra -Werror -Ibuild/gpuload/include -Itools/gpuload/src -o build/gpuload/test_gpuload_ring tools/gpuload/tests/test_gpuload_ring.c
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build/gpuload/test_gpuload_ring
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aarch64-linux-gnu-gcc -std=c11 -shared -fPIC -O2 -Wall -Wextra -Werror -Wno-unused-parameter -Wno-missing-field-initializers \
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-fvisibility=hidden -pthread -Wl,-z,defs -Ibuild/gpuload/include -Itools/gpuload/src \
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-o build/gpuload/out/libVkLayer_droiddeck_gpuload.so tools/gpuload/src/vk_layer_droiddeck_gpuload.c
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aarch64-linux-gnu-strip --strip-unneeded build/gpuload/out/libVkLayer_droiddeck_gpuload.so')
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if [ "$native" = 1 ]; then
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(cd "$repo" && "${cmd[@]}")
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else
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docker run --rm --platform "${DROIDDECK_DOCKER_PLATFORM:-linux/amd64}" --user "$(id -u):$(id -g)" -v "$repo:/src" -w /src \
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"${DROIDDECK_BUILD_IMAGE:-droiddeck-local-cross:24.04-v3}" "${cmd[@]}"
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fi
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cp "$here/layer/VK_LAYER_DROIDDECK_gpu_load.json" "$work/out/"
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mkdir -p "$out"
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cp "$work/out/libVkLayer_droiddeck_gpuload.so" "$work/out/VK_LAYER_DROIDDECK_gpu_load.json" "$out/"
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echo "built $out"
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