Lines Matching refs:pfdev
29 static int wait_ready(struct panfrost_device *pfdev, u32 as_nr) in wait_ready() argument
36 ret = readl_relaxed_poll_timeout_atomic(pfdev->iomem + AS_STATUS(as_nr), in wait_ready()
41 panfrost_device_schedule_reset(pfdev); in wait_ready()
42 dev_err(pfdev->dev, "AS_ACTIVE bit stuck\n"); in wait_ready()
48 static int write_cmd(struct panfrost_device *pfdev, u32 as_nr, u32 cmd) in write_cmd() argument
53 status = wait_ready(pfdev, as_nr); in write_cmd()
55 mmu_write(pfdev, AS_COMMAND(as_nr), cmd); in write_cmd()
60 static void lock_region(struct panfrost_device *pfdev, u32 as_nr, in lock_region() argument
90 mmu_write(pfdev, AS_LOCKADDR_LO(as_nr), lower_32_bits(region)); in lock_region()
91 mmu_write(pfdev, AS_LOCKADDR_HI(as_nr), upper_32_bits(region)); in lock_region()
92 write_cmd(pfdev, as_nr, AS_COMMAND_LOCK); in lock_region()
96 static int mmu_hw_do_operation_locked(struct panfrost_device *pfdev, int as_nr, in mmu_hw_do_operation_locked() argument
103 lock_region(pfdev, as_nr, iova, size); in mmu_hw_do_operation_locked()
106 write_cmd(pfdev, as_nr, op); in mmu_hw_do_operation_locked()
109 return wait_ready(pfdev, as_nr); in mmu_hw_do_operation_locked()
112 static int mmu_hw_do_operation(struct panfrost_device *pfdev, in mmu_hw_do_operation() argument
118 spin_lock(&pfdev->as_lock); in mmu_hw_do_operation()
119 ret = mmu_hw_do_operation_locked(pfdev, mmu->as, iova, size, op); in mmu_hw_do_operation()
120 spin_unlock(&pfdev->as_lock); in mmu_hw_do_operation()
124 static void panfrost_mmu_enable(struct panfrost_device *pfdev, struct panfrost_mmu *mmu) in panfrost_mmu_enable() argument
131 mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM); in panfrost_mmu_enable()
133 mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), lower_32_bits(transtab)); in panfrost_mmu_enable()
134 mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), upper_32_bits(transtab)); in panfrost_mmu_enable()
139 mmu_write(pfdev, AS_MEMATTR_LO(as_nr), lower_32_bits(memattr)); in panfrost_mmu_enable()
140 mmu_write(pfdev, AS_MEMATTR_HI(as_nr), upper_32_bits(memattr)); in panfrost_mmu_enable()
142 write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE); in panfrost_mmu_enable()
145 static void panfrost_mmu_disable(struct panfrost_device *pfdev, u32 as_nr) in panfrost_mmu_disable() argument
147 mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM); in panfrost_mmu_disable()
149 mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), 0); in panfrost_mmu_disable()
150 mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), 0); in panfrost_mmu_disable()
152 mmu_write(pfdev, AS_MEMATTR_LO(as_nr), 0); in panfrost_mmu_disable()
153 mmu_write(pfdev, AS_MEMATTR_HI(as_nr), 0); in panfrost_mmu_disable()
155 write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE); in panfrost_mmu_disable()
158 u32 panfrost_mmu_as_get(struct panfrost_device *pfdev, struct panfrost_mmu *mmu) in panfrost_mmu_as_get() argument
162 spin_lock(&pfdev->as_lock); in panfrost_mmu_as_get()
175 list_move(&mmu->list, &pfdev->as_lru_list); in panfrost_mmu_as_get()
177 if (pfdev->as_faulty_mask & mask) { in panfrost_mmu_as_get()
182 mmu_write(pfdev, MMU_INT_CLEAR, mask); in panfrost_mmu_as_get()
183 mmu_write(pfdev, MMU_INT_MASK, ~pfdev->as_faulty_mask); in panfrost_mmu_as_get()
184 pfdev->as_faulty_mask &= ~mask; in panfrost_mmu_as_get()
185 panfrost_mmu_enable(pfdev, mmu); in panfrost_mmu_as_get()
192 as = ffz(pfdev->as_alloc_mask); in panfrost_mmu_as_get()
193 if (!(BIT(as) & pfdev->features.as_present)) { in panfrost_mmu_as_get()
196 list_for_each_entry_reverse(lru_mmu, &pfdev->as_lru_list, list) { in panfrost_mmu_as_get()
200 WARN_ON(&lru_mmu->list == &pfdev->as_lru_list); in panfrost_mmu_as_get()
211 set_bit(as, &pfdev->as_alloc_mask); in panfrost_mmu_as_get()
213 list_add(&mmu->list, &pfdev->as_lru_list); in panfrost_mmu_as_get()
215 dev_dbg(pfdev->dev, "Assigned AS%d to mmu %p, alloc_mask=%lx", as, mmu, pfdev->as_alloc_mask); in panfrost_mmu_as_get()
217 panfrost_mmu_enable(pfdev, mmu); in panfrost_mmu_as_get()
220 spin_unlock(&pfdev->as_lock); in panfrost_mmu_as_get()
224 void panfrost_mmu_as_put(struct panfrost_device *pfdev, struct panfrost_mmu *mmu) in panfrost_mmu_as_put() argument
230 void panfrost_mmu_reset(struct panfrost_device *pfdev) in panfrost_mmu_reset() argument
234 spin_lock(&pfdev->as_lock); in panfrost_mmu_reset()
236 pfdev->as_alloc_mask = 0; in panfrost_mmu_reset()
237 pfdev->as_faulty_mask = 0; in panfrost_mmu_reset()
239 list_for_each_entry_safe(mmu, mmu_tmp, &pfdev->as_lru_list, list) { in panfrost_mmu_reset()
245 spin_unlock(&pfdev->as_lock); in panfrost_mmu_reset()
247 mmu_write(pfdev, MMU_INT_CLEAR, ~0); in panfrost_mmu_reset()
248 mmu_write(pfdev, MMU_INT_MASK, ~0); in panfrost_mmu_reset()
259 static void panfrost_mmu_flush_range(struct panfrost_device *pfdev, in panfrost_mmu_flush_range() argument
266 pm_runtime_get_noresume(pfdev->dev); in panfrost_mmu_flush_range()
269 if (pm_runtime_active(pfdev->dev)) in panfrost_mmu_flush_range()
270 mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT); in panfrost_mmu_flush_range()
272 pm_runtime_put_sync_autosuspend(pfdev->dev); in panfrost_mmu_flush_range()
275 static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu, in mmu_map_sg() argument
287 dev_dbg(pfdev->dev, "map: as=%d, iova=%llx, paddr=%lx, len=%zx", mmu->as, iova, paddr, len); in mmu_map_sg()
299 panfrost_mmu_flush_range(pfdev, mmu, start_iova, iova - start_iova); in mmu_map_sg()
308 struct panfrost_device *pfdev = to_panfrost_device(obj->dev); in panfrost_mmu_map() local
322 mmu_map_sg(pfdev, mapping->mmu, mapping->mmnode.start << PAGE_SHIFT, in panfrost_mmu_map()
333 struct panfrost_device *pfdev = to_panfrost_device(obj->dev); in panfrost_mmu_unmap() local
342 dev_dbg(pfdev->dev, "unmap: as=%d, iova=%llx, len=%zx", in panfrost_mmu_unmap()
357 panfrost_mmu_flush_range(pfdev, mapping->mmu, in panfrost_mmu_unmap()
383 addr_to_mapping(struct panfrost_device *pfdev, int as, u64 addr) in addr_to_mapping() argument
390 spin_lock(&pfdev->as_lock); in addr_to_mapping()
391 list_for_each_entry(mmu, &pfdev->as_lru_list, list) { in addr_to_mapping()
413 spin_unlock(&pfdev->as_lock); in addr_to_mapping()
419 static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, in panfrost_mmu_map_fault_addr() argument
430 bomapping = addr_to_mapping(pfdev, as, addr); in panfrost_mmu_map_fault_addr()
436 dev_WARN(pfdev->dev, "matching BO is not heap type (GPU VA = %llx)", in panfrost_mmu_map_fault_addr()
499 ret = dma_map_sgtable(pfdev->dev, sgt, DMA_BIDIRECTIONAL, 0); in panfrost_mmu_map_fault_addr()
503 mmu_map_sg(pfdev, bomapping->mmu, addr, in panfrost_mmu_map_fault_addr()
508 dev_dbg(pfdev->dev, "mapped page fault @ AS%d %llx", as, addr); in panfrost_mmu_map_fault_addr()
528 struct panfrost_device *pfdev = mmu->pfdev; in panfrost_mmu_release_ctx() local
530 spin_lock(&pfdev->as_lock); in panfrost_mmu_release_ctx()
532 pm_runtime_get_noresume(pfdev->dev); in panfrost_mmu_release_ctx()
533 if (pm_runtime_active(pfdev->dev)) in panfrost_mmu_release_ctx()
534 panfrost_mmu_disable(pfdev, mmu->as); in panfrost_mmu_release_ctx()
535 pm_runtime_put_autosuspend(pfdev->dev); in panfrost_mmu_release_ctx()
537 clear_bit(mmu->as, &pfdev->as_alloc_mask); in panfrost_mmu_release_ctx()
538 clear_bit(mmu->as, &pfdev->as_in_use_mask); in panfrost_mmu_release_ctx()
541 spin_unlock(&pfdev->as_lock); in panfrost_mmu_release_ctx()
586 struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev) in panfrost_mmu_ctx_create() argument
594 mmu->pfdev = pfdev; in panfrost_mmu_ctx_create()
606 .ias = FIELD_GET(0xff, pfdev->features.mmu_features), in panfrost_mmu_ctx_create()
607 .oas = FIELD_GET(0xff00, pfdev->features.mmu_features), in panfrost_mmu_ctx_create()
608 .coherent_walk = pfdev->coherent, in panfrost_mmu_ctx_create()
610 .iommu_dev = pfdev->dev, in panfrost_mmu_ctx_create()
625 static const char *access_type_name(struct panfrost_device *pfdev, in access_type_name() argument
630 if (panfrost_has_hw_feature(pfdev, HW_FEATURE_AARCH64_MMU)) in access_type_name()
648 struct panfrost_device *pfdev = data; in panfrost_mmu_irq_handler() local
650 if (!mmu_read(pfdev, MMU_INT_STAT)) in panfrost_mmu_irq_handler()
653 mmu_write(pfdev, MMU_INT_MASK, 0); in panfrost_mmu_irq_handler()
659 struct panfrost_device *pfdev = data; in panfrost_mmu_irq_handler_thread() local
660 u32 status = mmu_read(pfdev, MMU_INT_RAWSTAT); in panfrost_mmu_irq_handler_thread()
672 fault_status = mmu_read(pfdev, AS_FAULTSTATUS(as)); in panfrost_mmu_irq_handler_thread()
673 addr = mmu_read(pfdev, AS_FAULTADDRESS_LO(as)); in panfrost_mmu_irq_handler_thread()
674 addr |= (u64)mmu_read(pfdev, AS_FAULTADDRESS_HI(as)) << 32; in panfrost_mmu_irq_handler_thread()
681 mmu_write(pfdev, MMU_INT_CLEAR, mask); in panfrost_mmu_irq_handler_thread()
686 ret = panfrost_mmu_map_fault_addr(pfdev, as, addr); in panfrost_mmu_irq_handler_thread()
690 dev_err(pfdev->dev, in panfrost_mmu_irq_handler_thread()
703 access_type, access_type_name(pfdev, fault_status), in panfrost_mmu_irq_handler_thread()
706 spin_lock(&pfdev->as_lock); in panfrost_mmu_irq_handler_thread()
710 pfdev->as_faulty_mask |= mask; in panfrost_mmu_irq_handler_thread()
713 panfrost_mmu_disable(pfdev, as); in panfrost_mmu_irq_handler_thread()
714 spin_unlock(&pfdev->as_lock); in panfrost_mmu_irq_handler_thread()
721 status = mmu_read(pfdev, MMU_INT_RAWSTAT) & ~pfdev->as_faulty_mask; in panfrost_mmu_irq_handler_thread()
724 spin_lock(&pfdev->as_lock); in panfrost_mmu_irq_handler_thread()
725 mmu_write(pfdev, MMU_INT_MASK, ~pfdev->as_faulty_mask); in panfrost_mmu_irq_handler_thread()
726 spin_unlock(&pfdev->as_lock); in panfrost_mmu_irq_handler_thread()
731 int panfrost_mmu_init(struct panfrost_device *pfdev) in panfrost_mmu_init() argument
735 irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu"); in panfrost_mmu_init()
739 err = devm_request_threaded_irq(pfdev->dev, irq, in panfrost_mmu_init()
743 pfdev); in panfrost_mmu_init()
746 dev_err(pfdev->dev, "failed to request mmu irq"); in panfrost_mmu_init()
753 void panfrost_mmu_fini(struct panfrost_device *pfdev) in panfrost_mmu_fini() argument
755 mmu_write(pfdev, MMU_INT_MASK, 0); in panfrost_mmu_fini()