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author | Jack Rosenthal <jrosenth@chromium.org> | 2021-11-04 12:11:58 -0600 |
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committer | Commit Bot <commit-bot@chromium.org> | 2021-11-05 04:22:34 +0000 |
commit | 252457d4b21f46889eebad61d4c0a65331919cec (patch) | |
tree | 01856c4d31d710b20e85a74c8d7b5836e35c3b98 /core/cortex-m0/atomic.h | |
parent | 08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff) | |
download | chrome-ec-stabilize-14388.62.B-ish.tar.gz |
ish: Trim down the release branchstabilize-wristpin-14469.59.B-ishstabilize-voshyr-14637.B-ishstabilize-quickfix-14695.187.B-ishstabilize-quickfix-14695.124.B-ishstabilize-quickfix-14526.91.B-ishstabilize-14695.85.B-ishstabilize-14695.107.B-ishstabilize-14682.B-ishstabilize-14633.B-ishstabilize-14616.B-ishstabilize-14589.B-ishstabilize-14588.98.B-ishstabilize-14588.14.B-ishstabilize-14588.123.B-ishstabilize-14536.B-ishstabilize-14532.B-ishstabilize-14528.B-ishstabilize-14526.89.B-ishstabilize-14526.84.B-ishstabilize-14526.73.B-ishstabilize-14526.67.B-ishstabilize-14526.57.B-ishstabilize-14498.B-ishstabilize-14496.B-ishstabilize-14477.B-ishstabilize-14469.9.B-ishstabilize-14469.8.B-ishstabilize-14469.58.B-ishstabilize-14469.41.B-ishstabilize-14442.B-ishstabilize-14438.B-ishstabilize-14411.B-ishstabilize-14396.B-ishstabilize-14395.B-ishstabilize-14388.62.B-ishstabilize-14388.61.B-ishstabilize-14388.52.B-ishstabilize-14385.B-ishstabilize-14345.B-ishstabilize-14336.B-ishstabilize-14333.B-ishrelease-R99-14469.B-ishrelease-R98-14388.B-ishrelease-R102-14695.B-ishrelease-R101-14588.B-ishrelease-R100-14526.B-ishfirmware-cherry-14454.B-ishfirmware-brya-14505.B-ishfirmware-brya-14505.71.B-ishfactory-kukui-14374.B-ishfactory-guybrush-14600.B-ishfactory-cherry-14455.B-ishfactory-brya-14517.B-ish
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 'core/cortex-m0/atomic.h')
-rw-r--r-- | core/cortex-m0/atomic.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/core/cortex-m0/atomic.h b/core/cortex-m0/atomic.h deleted file mode 100644 index 0c58e71e41..0000000000 --- a/core/cortex-m0/atomic.h +++ /dev/null @@ -1,73 +0,0 @@ -/* Copyright 2014 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. - */ - -/* Atomic operations for ARMv6-M */ - -#ifndef __CROS_EC_ATOMIC_H -#define __CROS_EC_ATOMIC_H - -#include "common.h" - -typedef int atomic_t; -typedef atomic_t atomic_val_t; - -/** - * Implements atomic arithmetic operations on 32-bit integers. - * - * There is no load/store exclusive on ARMv6-M, just disable interrupts - */ -#define ATOMIC_OP(asm_op, a, v) \ -({ \ - uint32_t reg0, reg1; \ - \ - __asm__ __volatile__(" cpsid i\n" \ - " ldr %0, [%2]\n" \ - " mov %1, %0\n" \ - #asm_op" %0, %0, %3\n" \ - " str %0, [%2]\n" \ - " cpsie i\n" \ - : "=&l"(reg0), "=&l"(reg1) \ - : "l"(a), "r"(v) \ - : "cc", "memory"); \ - reg1; \ -}) - -static inline atomic_val_t atomic_clear_bits(atomic_t *addr, atomic_val_t bits) -{ - return ATOMIC_OP(bic, addr, bits); -} - -static inline atomic_val_t atomic_or(atomic_t *addr, atomic_val_t bits) -{ - return ATOMIC_OP(orr, addr, bits); -} - -static inline atomic_val_t atomic_add(atomic_t *addr, atomic_val_t value) -{ - return ATOMIC_OP(add, addr, value); -} - -static inline atomic_val_t atomic_sub(atomic_t *addr, atomic_val_t value) -{ - return ATOMIC_OP(sub, addr, value); -} - -static inline atomic_val_t atomic_clear(atomic_t *addr) -{ - atomic_t ret; - - __asm__ __volatile__(" mov %2, #0\n" - " cpsid i\n" - " ldr %0, [%1]\n" - " str %2, [%1]\n" - " cpsie i\n" - : "=&l" (ret) - : "l" (addr), "r" (0) - : "cc", "memory"); - - return ret; -} - -#endif /* __CROS_EC_ATOMIC_H */ |