34 	/* Wait for the MMU status to indicate there is no active command, in  in wait_ready()
49 	/* write AS_COMMAND when MMU is ready to accept another command */  in write_cmd()
86 	/* Run the MMU operation */  in mmu_hw_do_operation_locked()
94 			       struct panfrost_mmu *mmu,  in mmu_hw_do_operation()  argument
100 	ret = mmu_hw_do_operation_locked(pfdev, mmu->as, iova, size, op);  in mmu_hw_do_operation()
105 static void panfrost_mmu_enable(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)  in panfrost_mmu_enable()  argument
107 	int as_nr = mmu->as;  in panfrost_mmu_enable()
108 	struct io_pgtable_cfg *cfg = &mmu->pgtbl_cfg;  in panfrost_mmu_enable()
139 u32 panfrost_mmu_as_get(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)  in panfrost_mmu_as_get()  argument
145 	as = mmu->as;  in panfrost_mmu_as_get()
147 		int en = atomic_inc_return(&mmu->as_count);  in panfrost_mmu_as_get()
155 		list_move(&mmu->list, &pfdev->as_lru_list);  in panfrost_mmu_as_get()
178 	mmu->as = as;  in panfrost_mmu_as_get()
180 	atomic_set(&mmu->as_count, 1);  in panfrost_mmu_as_get()
181 	list_add(&mmu->list, &pfdev->as_lru_list);  in panfrost_mmu_as_get()
183 	dev_dbg(pfdev->dev, "Assigned AS%d to mmu %p, alloc_mask=%lx", as, mmu, pfdev->as_alloc_mask);  in panfrost_mmu_as_get()
185 	panfrost_mmu_enable(pfdev, mmu);  in panfrost_mmu_as_get()
192 void panfrost_mmu_as_put(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)  in panfrost_mmu_as_put()  argument
194 	atomic_dec(&mmu->as_count);  in panfrost_mmu_as_put()
195 	WARN_ON(atomic_read(&mmu->as_count) < 0);  in panfrost_mmu_as_put()
200 	struct panfrost_mmu *mmu, *mmu_tmp;  in panfrost_mmu_reset()  local
206 	list_for_each_entry_safe(mmu, mmu_tmp, &pfdev->as_lru_list, list) {  in panfrost_mmu_reset()
207 		mmu->as = -1;  in panfrost_mmu_reset()
208 		atomic_set(&mmu->as_count, 0);  in panfrost_mmu_reset()
209 		list_del_init(&mmu->list);  in panfrost_mmu_reset()
227 				     struct panfrost_mmu *mmu,  in panfrost_mmu_flush_range()  argument
230 	if (mmu->as < 0)  in panfrost_mmu_flush_range()
237 		mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT);  in panfrost_mmu_flush_range()
242 static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu,  in mmu_map_sg()  argument
247 	struct io_pgtable_ops *ops = mmu->pgtbl_ops;  in mmu_map_sg()
254 		dev_dbg(pfdev->dev, "map: as=%d, iova=%llx, paddr=%lx, len=%zx", mmu->as, iova, paddr, len);  in mmu_map_sg()
266 	panfrost_mmu_flush_range(pfdev, mmu, start_iova, iova - start_iova);  in mmu_map_sg()
289 	mmu_map_sg(pfdev, mapping->mmu, mapping->mmnode.start << PAGE_SHIFT,  in panfrost_mmu_map()
301 	struct io_pgtable_ops *ops = mapping->mmu->pgtbl_ops;  in panfrost_mmu_unmap()
310 		mapping->mmu->as, iova, len);  in panfrost_mmu_unmap()
324 	panfrost_mmu_flush_range(pfdev, mapping->mmu,  in panfrost_mmu_unmap()
334 	//struct panfrost_mmu *mmu = cookie;  in mmu_tlb_sync_context()
362 	struct panfrost_mmu *mmu;  in addr_to_mapping()  local
365 	list_for_each_entry(mmu, &pfdev->as_lru_list, list) {  in addr_to_mapping()
366 		if (as == mmu->as)  in addr_to_mapping()
373 	spin_lock(&mmu->mm_lock);  in addr_to_mapping()
375 	drm_mm_for_each_node(node, &mmu->mm) {  in addr_to_mapping()
385 	spin_unlock(&mmu->mm_lock);  in addr_to_mapping()
415 	WARN_ON(bomapping->mmu->as != as);  in panfrost_mmu_map_fault_addr()
477 	mmu_map_sg(pfdev, bomapping->mmu, addr,  in panfrost_mmu_map_fault_addr()
500 	struct panfrost_mmu *mmu = container_of(kref, struct panfrost_mmu,  in panfrost_mmu_release_ctx()  local
502 	struct panfrost_device *pfdev = mmu->pfdev;  in panfrost_mmu_release_ctx()
505 	if (mmu->as >= 0) {  in panfrost_mmu_release_ctx()
508 			panfrost_mmu_disable(pfdev, mmu->as);  in panfrost_mmu_release_ctx()
511 		clear_bit(mmu->as, &pfdev->as_alloc_mask);  in panfrost_mmu_release_ctx()
512 		clear_bit(mmu->as, &pfdev->as_in_use_mask);  in panfrost_mmu_release_ctx()
513 		list_del(&mmu->list);  in panfrost_mmu_release_ctx()
517 	free_io_pgtable_ops(mmu->pgtbl_ops);  in panfrost_mmu_release_ctx()
518 	drm_mm_takedown(&mmu->mm);  in panfrost_mmu_release_ctx()
519 	kfree(mmu);  in panfrost_mmu_release_ctx()
522 void panfrost_mmu_ctx_put(struct panfrost_mmu *mmu)  in panfrost_mmu_ctx_put()  argument
524 	kref_put(&mmu->refcount, panfrost_mmu_release_ctx);  in panfrost_mmu_ctx_put()
527 struct panfrost_mmu *panfrost_mmu_ctx_get(struct panfrost_mmu *mmu)  in panfrost_mmu_ctx_get()  argument
529 	kref_get(&mmu->refcount);  in panfrost_mmu_ctx_get()
531 	return mmu;  in panfrost_mmu_ctx_get()
562 	struct panfrost_mmu *mmu;  in panfrost_mmu_ctx_create()  local
564 	mmu = kzalloc(sizeof(*mmu), GFP_KERNEL);  in panfrost_mmu_ctx_create()
565 	if (!mmu)  in panfrost_mmu_ctx_create()
568 	mmu->pfdev = pfdev;  in panfrost_mmu_ctx_create()
569 	spin_lock_init(&mmu->mm_lock);  in panfrost_mmu_ctx_create()
572 	drm_mm_init(&mmu->mm, SZ_32M >> PAGE_SHIFT, (SZ_4G - SZ_32M) >> PAGE_SHIFT);  in panfrost_mmu_ctx_create()
573 	mmu->mm.color_adjust = panfrost_drm_mm_color_adjust;  in panfrost_mmu_ctx_create()
575 	INIT_LIST_HEAD(&mmu->list);  in panfrost_mmu_ctx_create()
576 	mmu->as = -1;  in panfrost_mmu_ctx_create()
578 	mmu->pgtbl_cfg = (struct io_pgtable_cfg) {  in panfrost_mmu_ctx_create()
587 	mmu->pgtbl_ops = alloc_io_pgtable_ops(ARM_MALI_LPAE, &mmu->pgtbl_cfg,  in panfrost_mmu_ctx_create()
588 					      mmu);  in panfrost_mmu_ctx_create()
589 	if (!mmu->pgtbl_ops) {  in panfrost_mmu_ctx_create()
590 		kfree(mmu);  in panfrost_mmu_ctx_create()
594 	kref_init(&mmu->refcount);  in panfrost_mmu_ctx_create()
596 	return mmu;  in panfrost_mmu_ctx_create()
693 	irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");  in panfrost_mmu_init()
700 					IRQF_SHARED, KBUILD_MODNAME "-mmu",  in panfrost_mmu_init()
704 		dev_err(pfdev->dev, "failed to request mmu irq");  in panfrost_mmu_init()