1a9e7efde5
Summary: - The CONFIG_SMP_IDLETHREAD_STACKSIZE was introduced to optimize the idle stack size for other than CPU0 - However, there are no big differences between the idle stacks. - This commit removes the config to simplify the kernel code Impact: - All SMP configurations Testing: - Tested with ostest with the following configs - spresense:smp, spresense:rndis_smp - esp32-devkitc:smp (QEMU), maix-bit:smp (QEMU) - sabre-6quad:smp (QEMU), sabre-6quad:netnsh_smp (QEMU) - raspberrypi-pico:smp, sim:smp (x86_64) Signed-off-by: Masayuki Ishikawa <asayuki.Ishikawa@jp.sony.com>
129 lines
4.3 KiB
C
129 lines
4.3 KiB
C
/****************************************************************************
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* arch/arm/src/armv7-a/smp.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. 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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_ARMV7_A_SMP_H
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#define __ARCH_ARM_SRC_ARMV7_A_SMP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_SMP
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* ARM requires at least a 4-byte stack alignment. For use with EABI and
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* floating point, the stack must be aligned to 8-byte addresses. We will
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* always use the EABI stack alignment
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*/
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#define SMP_STACK_ALIGNMENT 8
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#define SMP_STACK_MASK 7
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#define SMP_STACK_SIZE ((CONFIG_IDLETHREAD_STACKSIZE + 7) & ~7)
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#define SMP_STACK_WORDS (SMP_STACK_SIZE >> 2)
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#if CONFIG_SMP_NCPUS > 1
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extern uint32_t g_cpu1_idlestack[SMP_STACK_WORDS];
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#if CONFIG_SMP_NCPUS > 2
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extern uint32_t g_cpu2_idlestack[SMP_STACK_WORDS];
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#if CONFIG_SMP_NCPUS > 3
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extern uint32_t g_cpu3_idlestack[SMP_STACK_WORDS];
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#if CONFIG_SMP_NCPUS > 4
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# error This logic needs to extended for CONFIG_SMP_NCPUS > 4
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#endif /* CONFIG_SMP_NCPUS > 4 */
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#endif /* CONFIG_SMP_NCPUS > 3 */
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#endif /* CONFIG_SMP_NCPUS > 2 */
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#endif /* CONFIG_SMP_NCPUS > 1 */
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: __cpu[n]_start
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*
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* Description:
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* Boot functions for each CPU (other than CPU0). These functions set up
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* the ARM operating mode, the initial stack, and configure co-processor
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* registers. At the end of the boot, arm_cpu_boot() is called.
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*
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* These functions are provided by the common ARMv7-A logic.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Do not return.
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*
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****************************************************************************/
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#if CONFIG_SMP_NCPUS > 1
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void __cpu1_start(void);
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#endif
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#if CONFIG_SMP_NCPUS > 2
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void __cpu2_start(void);
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#endif
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#if CONFIG_SMP_NCPUS > 3
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void __cpu3_start(void);
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#endif
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#if CONFIG_SMP_NCPUS > 4
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# error This logic needs to extended for CONFIG_SMP_NCPUS > 4
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#endif
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/****************************************************************************
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* Name: arm_cpu_boot
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*
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* Description:
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* Continues the C-level initialization started by the assembly language
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* __cpu[n]_start function. At a minimum, this function needs to
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* initialize interrupt handling and, perhaps, wait on WFI for
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* arm_cpu_start() to issue an SGI.
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*
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* This function must be provided by the each ARMv7-A MCU and implement
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* MCU-specific initialization logic.
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*
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* Input Parameters:
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* cpu - The CPU index. This is the same value that would be obtained by
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* calling up_cpu_index();
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*
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* Returned Value:
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* Does not return.
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*
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****************************************************************************/
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void arm_cpu_boot(int cpu);
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_SMP */
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#endif /* __ARCH_ARM_SRC_ARMV7_A_SMP_H */
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