rt-thread.git/components/drivers/pic/pic.c, branch v5.2.1-beta

[DM] Replace spinlock static init by RT_DEFINE_SPINLOCK

2025-02-11T06:58:18Z

Signed-off-by: GuEe-GUI <2991707448@qq.com>

[DM/FIXUP] Fixup PIC ktime depends

2024-12-13T02:39:20Z

Signed-off-by: GuEe-GUI <2991707448@qq.com>

feat: smp_call: added signaling call_req

2024-11-03T02:08:45Z

This patch introduces `rt_smp_call_request` API to handle queued requests across cores with user provided data buffer, which provides a way to request IPI through a non-blocking pattern. It also resolved several issues in the old implementation: - Multiple requests from different cores can not be queued in the work object of the target core. - Data racing on `rt_smp_work` of same core. If multiple requests came in turns, or if the call is used by the target cpu, while a new request is coming, the value will be overwrite. - Memory vulnerability. The rt_smp_event is allocated on stack, though the caller may not wait until the call is done. - API naming problem. Actually we don't provide a way to issue an IPI to ANY core in mask. What the API do is aligned to MANY pattern. - FUNC_IPI registering to PIC. Changes: - Declared and configured the new `RT_SMP_CALL_IPI` to support functional IPIs for task requests across cores. - Replaced the single `rt_smp_work` array with `call_req_cores` to manage per-core call requests safely. - Added `_call_req_take` and `_call_req_release` functions for atomic handling of request lifetimes, preventing data race conditions. - Replaced single event handling with a queue-based approach (`call_queue`) for efficient multi-request processing per core. - Introduced `rt_smp_call_ipi_handler` to process queued requests, reducing IPI contention by only sending new requests when needed. - Implemented `_smp_call_remote_request` to handle remote requests with specific flags, enabling more flexible core-to-core task signaling. - Refined `rt_smp_call_req_init` to initialize and track requests with atomic usage flags, mitigating potential memory vulnerabilities. Signed-off-by: Shell

[FEATURE/PIC] support PIC cancel (only in debug)

2024-09-19T13:14:42Z

PIC may free because some wrongs in debug. We should remove in PIC list or there are some undefined behavior will happen. Signed-off-by: GuEe-GUI <2991707448@qq.com>

[FIXUP/PIC] pirq's child handler should lock less

2024-09-19T13:14:42Z

When call the child handler, the PIC ops needn't lock again. Critical zone protection by PIC implementers. Signed-off-by: GuEe-GUI <2991707448@qq.com>

[FIXUP/PIC] set interrupt status when do traps

2024-09-19T13:14:42Z

Signed-off-by: GuEe-GUI <2991707448@qq.com>

[PIC/FIXUP] pirq reinit fail

2024-09-19T13:14:42Z

don't reinit pirq's list if cascade Signed-off-by: GuEe-GUI <2991707448@qq.com>

[components][ktime]support period ktime timeout and multiple ktimer_hrtimer (#8972)

2024-06-23T14:08:54Z

* support period time * enable multiple ktimer * mv set delay_cnt to hrtimer_start * add ktime debug info * change current_irq_begin to local var * fix bug: setting current timer and setting timeout in driver aren't atomicly * create->init * refactoring ktime

[DM/feature] Implement PIC irq state { get; set } (#9006)

2024-05-31T09:37:39Z

* [DM/feature] Implement PIC irq state { get; set } There are some common state for irq: 1. Pending: IRQ was triggered, but software not ACK. 2. Active: IRQ was ACK, but not EOI. 3. Masked: IRQ was masked or umasked. Signed-off-by: GuEe-GUI <2991707448@qq.com> * [DM/pic] Support IRQ state { get; set } for ARM GICv2/v3 Signed-off-by: GuEe-GUI <2991707448@qq.com> --------- Signed-off-by: GuEe-GUI <2991707448@qq.com>

[PIC] Make affinity helper interface (#8995)

2024-05-28T01:55:24Z

* [PIC] Make affinity helper interface Signed-off-by: GuEe-GUI <2991707448@qq.com> * [PIC/GIC] Fixup GIC affinity init GICv2 is not support if current CPU is not startup, but RT-Thread SMP is startup after the devices init in the `main` thread. This patch fixup the cpumask to init once and check the init status in affinity interface. Signed-off-by: GuEe-GUI <2991707448@qq.com> --------- Signed-off-by: GuEe-GUI <2991707448@qq.com>