drm/panthor/panthor_device.h

1 /* SPDX-License-Identifier: GPL-2.0 or MIT */
10 #include <linux/io-pgtable.h>
35  * enum panthor_device_pm_state - PM state
52  * struct panthor_irq - IRQ data
71  * enum panthor_device_profiling_mode - Profiling state
90  * struct panthor_device - Panthor device
200 	/** @profile_mask: User-set profiling flags for job accounting. */
216  * struct panthor_file - Panthor file
228 	/** @stats: cycle and timestamp measures for job execution. */
229 	struct panthor_gpu_usage stats;  member
236  * panthor_device_schedule_reset() - Schedules a reset operation
240 	if (!atomic_cmpxchg(&ptdev->reset.pending, 0, 1) &&  in panthor_device_schedule_reset()
241 	    atomic_read(&ptdev->pm.state) == PANTHOR_DEVICE_PM_STATE_ACTIVE)  in panthor_device_schedule_reset()
242 		queue_work(ptdev->reset.wq, &ptdev->reset.work);  in panthor_device_schedule_reset()
246  * panthor_device_reset_is_pending() - Checks if a reset is pending.
252 	return atomic_read(&ptdev->reset.pending) != 0;  in panthor_device_reset_is_pending()
263 	int ret = pm_runtime_resume_and_get(ptdev->base.dev);  in panthor_device_resume_and_get()
266 	 * can done by forcing the RPM state to suspended. If multiple  in panthor_device_resume_and_get()
277 	if (ret && atomic_cmpxchg(&ptdev->pm.recovery_needed, 1, 0) == 1)  in panthor_device_resume_and_get()
278 		pm_runtime_set_suspended(ptdev->base.dev);  in panthor_device_resume_and_get()
336  * panthor_exception_is_fault() - Checks if an exception is a fault.
350  * PANTHOR_IRQ_HANDLER() - Define interrupt handlers and the interrupt
353  * The boiler-plate to gracefully deal with shared interrupts is
354  * auto-generated. All you have to do is call PANTHOR_IRQ_HANDLER()
363 	struct panthor_device *ptdev = pirq->ptdev;						\
365 	if (atomic_read(&pirq->suspended))							\
377 	struct panthor_device *ptdev = pirq->ptdev;						\
381 		u32 status = gpu_read(ptdev, __reg_prefix ## _INT_RAWSTAT) & pirq->mask;	\
392 	if (!atomic_read(&pirq->suspended))							\
393 		gpu_write(ptdev, __reg_prefix ## _INT_MASK, pirq->mask);			\
400 	pirq->mask = 0;										\
401 	gpu_write(pirq->ptdev, __reg_prefix ## _INT_MASK, 0);					\
402 	synchronize_irq(pirq->irq);								\
403 	atomic_set(&pirq->suspended, true);							\
408 	atomic_set(&pirq->suspended, false);							\
409 	pirq->mask = mask;									\
410 	gpu_write(pirq->ptdev, __reg_prefix ## _INT_CLEAR, mask);				\
411 	gpu_write(pirq->ptdev, __reg_prefix ## _INT_MASK, mask);				\
418 	pirq->ptdev = ptdev;									\
419 	pirq->irq = irq;									\
422 	return devm_request_threaded_irq(ptdev->base.dev, irq,					\
425 					 IRQF_SHARED, KBUILD_MODNAME "-" # __name,		\