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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /zephyr/shim/include/fpu.h
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14695.107.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'zephyr/shim/include/fpu.h')
-rw-r--r--zephyr/shim/include/fpu.h56
1 files changed, 0 insertions, 56 deletions
diff --git a/zephyr/shim/include/fpu.h b/zephyr/shim/include/fpu.h
deleted file mode 100644
index da36f50492..0000000000
--- a/zephyr/shim/include/fpu.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/* Copyright 2021 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef __CROS_EC_FPU_H
-#define __CROS_EC_FPU_H
-
-/*
- * These functions are available in newlib but we are are using Zephyr's
- * minimal library at present.
- *
- * This file is not called math.h to avoid a conflict with the toolchain's
- * built-in version.
- *
- * This code is taken from core/cortex-m/include/fpu.h
- */
-
-#ifdef CONFIG_PLATFORM_EC_FPU
-
-/* Implementation for Cortex-M */
-#ifdef CONFIG_CPU_CORTEX_M
-static inline float sqrtf(float v)
-{
- float root;
-
- /* Use the CPU instruction */
- __asm__ volatile(
- "fsqrts %0, %1"
- : "=w" (root)
- : "w" (v)
- );
-
- return root;
-}
-
-static inline float fabsf(float v)
-{
- float root;
-
- /* Use the CPU instruction */
- __asm__ volatile(
- "fabss %0, %1"
- : "=w" (root)
- : "w" (v)
- );
-
- return root;
-}
-#else
-#error "Unsupported core: please add an implementation"
-#endif /* CONFIG_CPU_CORTEX_M */
-
-#endif /* CONFIG_PLATFORM_EC_FPU */
-
-#endif /* __CROS_EC_MATH_H */