Hwspinlock
Web25 jan. 2024 · find likely ancestor, descendant, or conflicting patches for this message : dfblob:e8b16665860 dfblob:28769aa7fed. ( help) Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox ... Web26 apr. 2024 · hwspinlock is dynamically assigned: before it can be used to achieve mutual exclusion with a remote cpu, the id number should be communicated to the remote task …
Hwspinlock
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WebIntroduction ¶. Hardware spinlock modules provide hardware assistance for synchronization and mutual exclusion between heterogeneous processors and those not operating under a single, shared operating system. For example, OMAP4 has dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP, each of which is running a different Operating System (the master ... WebFrom: Fabien Dessenne To: Ohad Ben-Cohen , Bjorn Andersson , Maxime Coquelin , Alexandre Torgue , , , …
Webstruct hwspinlock_device {struct device *dev; const struct hwspinlock_ops *ops; int base_id; int num_locks; struct hwspinlock lock[];}; static inline int hwlock_to_id (struct hwspinlock … WebChanges since v5: - Dropped all but hwspinlock specific dt bindings - Hardcoded the number of locks (there is 32) - Rework to sit ontop of syscon Changes since v4: - Aligned with devicetree support in hwlock framework and hence depends on [1] Changes since v3: - Reverted back to getting stride from of_match, per Kumars request Changes since v2: - …
Web363 * hwspin_lock_unregister() - unregister an hw spinlock device. 364 * @bank: the hwspinlock device, which usually provides numerous hw locks. 365 * 366 * This function … Web31 jan. 2011 · This patch set adds hwspinlock framework that makes it possible for drivers to use those hwspinlock devices and stay platform-independent. Currently there are two use cases for this hwspinlock interface: 1. Inter-processor communications: on OMAP4, cpu-intensive multimedia tasks are offloaded by the host to the remote M3 and/or C64x+ …
WebLinux SUNXI hardware spinlock driver. This is the main development repository for the sunxi hardware spinlock driver sun6i_hwspinlock. Since the Allwinner sun6i platform …
WebSince no sw spinlock guards the hwspinlock, it is the responsibility of the platform driver to ensure that an unique value is written to the hwspinlock to ensure locking correctness. Drivers may use hwspin_trylock_raw() and hwspin_unlock_raw() api to lock and unlock a hwlock with raw capability. thigh chunky high bootsWeb23 nov. 2010 · Because of that, we can safely treat the hwspinlock like we do with regular spinlocks: preemption should be disabled, but whether to disable interrupts or not is up to the caller. So despite the TRM's recommendation to always disable local interrupts when taking an OMAP Hardware Spinlock, I have ... saint garage new orleansWeb10 apr. 2024 · Add hwspinlock Linux Driver to Petalinux project. I would like to add a hwspinlock like this to my Petalinux Project for controlling the xilinx mutex on an fpga. I … thigh clingWebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v7 0/2] hwspinlock: add sun6i hardware spinlock support @ 2024-03-14 9:30 Wilken Gottwalt 2024-03-14 9:30 ` [PATCH v7 1/2] dt-bindings: hwlock: add sun6i_hwspinlock Wilken Gottwalt ` (2 more replies) 0 siblings, 3 replies; 13+ messages in thread From: Wilken … thigh clothingWeb* This function attempts to lock an hwspinlock, and will immediately fail: 231 * if the hwspinlock is already taken. 232 * 233 * This function shall be called only from an atomic context. 234 * 235 * Returns 0 if we successfully locked the hwspinlock, -EBUSY if: 236 * the hwspinlock was already taken, and -EINVAL if @hwlock is invalid. 237 */ 238 saint game tonightWeb23 mrt. 2011 · A generic hwspinlock framework allows platform-independent drivers to use the hwspinlock device in order to access data structures that are shared between remote … thigh clineWeb* hwspinlock devices provide system-wide hardware locks that are used * by remote processors that have no other way to achieve synchronization. * To achieve that, each … thigh clap