Lines Matching defs:pfdev
29 static int wait_ready(struct panfrost_device *pfdev, u32 as_nr)
36 ret = readl_relaxed_poll_timeout_atomic(pfdev->iomem + AS_STATUS(as_nr),
40 dev_err(pfdev->dev, "AS_ACTIVE bit stuck\n");
45 static int write_cmd(struct panfrost_device *pfdev, u32 as_nr, u32 cmd)
50 status = wait_ready(pfdev, as_nr);
52 mmu_write(pfdev, AS_COMMAND(as_nr), cmd);
57 static void lock_region(struct panfrost_device *pfdev, u32 as_nr,
71 mmu_write(pfdev, AS_LOCKADDR_LO(as_nr), region & 0xFFFFFFFFUL);
72 mmu_write(pfdev, AS_LOCKADDR_HI(as_nr), (region >> 32) & 0xFFFFFFFFUL);
73 write_cmd(pfdev, as_nr, AS_COMMAND_LOCK);
77 static int mmu_hw_do_operation_locked(struct panfrost_device *pfdev, int as_nr,
84 lock_region(pfdev, as_nr, iova, size);
87 write_cmd(pfdev, as_nr, op);
90 return wait_ready(pfdev, as_nr);
93 static int mmu_hw_do_operation(struct panfrost_device *pfdev,
99 spin_lock(&pfdev->as_lock);
100 ret = mmu_hw_do_operation_locked(pfdev, mmu->as, iova, size, op);
101 spin_unlock(&pfdev->as_lock);
105 static void panfrost_mmu_enable(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)
112 mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM);
114 mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), transtab & 0xffffffffUL);
115 mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), transtab >> 32);
120 mmu_write(pfdev, AS_MEMATTR_LO(as_nr), memattr & 0xffffffffUL);
121 mmu_write(pfdev, AS_MEMATTR_HI(as_nr), memattr >> 32);
123 write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE);
126 static void panfrost_mmu_disable(struct panfrost_device *pfdev, u32 as_nr)
128 mmu_hw_do_operation_locked(pfdev, as_nr, 0, ~0ULL, AS_COMMAND_FLUSH_MEM);
130 mmu_write(pfdev, AS_TRANSTAB_LO(as_nr), 0);
131 mmu_write(pfdev, AS_TRANSTAB_HI(as_nr), 0);
133 mmu_write(pfdev, AS_MEMATTR_LO(as_nr), 0);
134 mmu_write(pfdev, AS_MEMATTR_HI(as_nr), 0);
136 write_cmd(pfdev, as_nr, AS_COMMAND_UPDATE);
139 u32 panfrost_mmu_as_get(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)
143 spin_lock(&pfdev->as_lock);
155 list_move(&mmu->list, &pfdev->as_lru_list);
160 as = ffz(pfdev->as_alloc_mask);
161 if (!(BIT(as) & pfdev->features.as_present)) {
164 list_for_each_entry_reverse(lru_mmu, &pfdev->as_lru_list, list) {
168 WARN_ON(&lru_mmu->list == &pfdev->as_lru_list);
179 set_bit(as, &pfdev->as_alloc_mask);
181 list_add(&mmu->list, &pfdev->as_lru_list);
183 dev_dbg(pfdev->dev, "Assigned AS%d to mmu %p, alloc_mask=%lx", as, mmu, pfdev->as_alloc_mask);
185 panfrost_mmu_enable(pfdev, mmu);
188 spin_unlock(&pfdev->as_lock);
192 void panfrost_mmu_as_put(struct panfrost_device *pfdev, struct panfrost_mmu *mmu)
198 void panfrost_mmu_reset(struct panfrost_device *pfdev)
202 spin_lock(&pfdev->as_lock);
204 pfdev->as_alloc_mask = 0;
206 list_for_each_entry_safe(mmu, mmu_tmp, &pfdev->as_lru_list, list) {
212 spin_unlock(&pfdev->as_lock);
214 mmu_write(pfdev, MMU_INT_CLEAR, ~0);
215 mmu_write(pfdev, MMU_INT_MASK, ~0);
226 static void panfrost_mmu_flush_range(struct panfrost_device *pfdev,
233 pm_runtime_get_noresume(pfdev->dev);
236 if (pm_runtime_active(pfdev->dev))
237 mmu_hw_do_operation(pfdev, mmu, iova, size, AS_COMMAND_FLUSH_PT);
239 pm_runtime_put_autosuspend(pfdev->dev);
242 static int mmu_map_sg(struct panfrost_device *pfdev, struct panfrost_mmu *mmu,
254 dev_dbg(pfdev->dev, "map: as=%d, iova=%llx, paddr=%lx, len=%zx", mmu->as, iova, paddr, len);
266 panfrost_mmu_flush_range(pfdev, mmu, start_iova, iova - start_iova);
275 struct panfrost_device *pfdev = to_panfrost_device(obj->dev);
289 mmu_map_sg(pfdev, mapping->mmu, mapping->mmnode.start << PAGE_SHIFT,
300 struct panfrost_device *pfdev = to_panfrost_device(obj->dev);
309 dev_dbg(pfdev->dev, "unmap: as=%d, iova=%llx, len=%zx",
324 panfrost_mmu_flush_range(pfdev, mapping->mmu,
357 addr_to_mapping(struct panfrost_device *pfdev, int as, u64 addr)
364 spin_lock(&pfdev->as_lock);
365 list_for_each_entry(mmu, &pfdev->as_lru_list, list) {
387 spin_unlock(&pfdev->as_lock);
393 static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as,
404 bomapping = addr_to_mapping(pfdev, as, addr);
410 dev_WARN(pfdev->dev, "matching BO is not heap type (GPU VA = %llx)",
474 ret = dma_map_sgtable(pfdev->dev, sgt, DMA_BIDIRECTIONAL, 0);
478 mmu_map_sg(pfdev, bomapping->mmu, addr,
483 dev_dbg(pfdev->dev, "mapped page fault @ AS%d %llx", as, addr);
503 struct panfrost_device *pfdev = mmu->pfdev;
505 spin_lock(&pfdev->as_lock);
507 pm_runtime_get_noresume(pfdev->dev);
508 if (pm_runtime_active(pfdev->dev))
509 panfrost_mmu_disable(pfdev, mmu->as);
510 pm_runtime_put_autosuspend(pfdev->dev);
512 clear_bit(mmu->as, &pfdev->as_alloc_mask);
513 clear_bit(mmu->as, &pfdev->as_in_use_mask);
516 spin_unlock(&pfdev->as_lock);
561 struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev)
569 mmu->pfdev = pfdev;
581 .ias = FIELD_GET(0xff, pfdev->features.mmu_features),
582 .oas = FIELD_GET(0xff00, pfdev->features.mmu_features),
583 .coherent_walk = pfdev->coherent,
585 .iommu_dev = pfdev->dev,
600 static const char *access_type_name(struct panfrost_device *pfdev,
605 if (panfrost_has_hw_feature(pfdev, HW_FEATURE_AARCH64_MMU))
623 struct panfrost_device *pfdev = data;
625 if (!mmu_read(pfdev, MMU_INT_STAT))
628 mmu_write(pfdev, MMU_INT_MASK, 0);
634 struct panfrost_device *pfdev = data;
635 u32 status = mmu_read(pfdev, MMU_INT_RAWSTAT);
649 fault_status = mmu_read(pfdev, AS_FAULTSTATUS(i));
650 addr = mmu_read(pfdev, AS_FAULTADDRESS_LO(i));
651 addr |= (u64)mmu_read(pfdev, AS_FAULTADDRESS_HI(i)) << 32;
658 mmu_write(pfdev, MMU_INT_CLEAR, mask);
663 ret = panfrost_mmu_map_fault_addr(pfdev, i, addr);
667 dev_err(pfdev->dev,
679 exception_type, panfrost_exception_name(pfdev, exception_type),
680 access_type, access_type_name(pfdev, fault_status),
686 mmu_write(pfdev, MMU_INT_MASK, ~0);
690 int panfrost_mmu_init(struct panfrost_device *pfdev)
694 irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "mmu");
698 err = devm_request_threaded_irq(pfdev->dev, irq,
702 pfdev);
705 dev_err(pfdev->dev, "failed to request mmu irq");
712 void panfrost_mmu_fini(struct panfrost_device *pfdev)
714 mmu_write(pfdev, MMU_INT_MASK, 0);