73592d9bc4
spin_lock: cleaned-up port files and removed portmux files components/soc: decoupled compare and set operations from FreeRTOS soc/spinlock: filled initial implementation of spinlock refactor It will decouple the spinlocks into separated components with not depencences of freertos an similar interface was provided focusing the readabillity and maintenance, also naming to spinlocks were adopted. On FreeRTOS side the legacy portMUX macros gained a form of wrapper functions that calls the spinlocks component thus minimizing the impact on RTOS side. This feature aims to close IDF-967 soc/spinlock: spinlocks passed on unit test, missing test corner cases components/compare_set: added better function namings plus minor performance optimization on spinlocks soc/spinlock: code reordering to remove ISC C90 mix error freertos/portmacro: gor rid of critical sections multiline macros, placed inline functions instead soc/spinlock: improved spinlock performance from internal RAM For cases where the spinlock is executed from IRAM, there is no need to check where the spinlock object is placed on memory, removing this checks caused a great improvement on performance.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "soc/compare_set.h"
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#include "soc/spinlock.h"
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static spinlock_t global_extram_lock = SPINLOCK_INITIALIZER;
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void compare_and_set_extram(volatile uint32_t *addr, uint32_t compare, uint32_t *set)
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{
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uint32_t intlevel, old_value;
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__asm__ __volatile__ ("rsil %0, " XTSTR(XCHAL_EXCM_LEVEL) "\n"
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: "=r"(intlevel));
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spinlock_acquire(&global_extram_lock, SPINLOCK_WAIT_FOREVER);
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old_value = *addr;
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if (old_value == compare) {
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*addr = *set;
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}
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spinlock_release(&global_extram_lock);
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__asm__ __volatile__ ("memw \n"
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"wsr %0, ps\n"
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:: "r"(intlevel));
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*set = old_value;
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}
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