diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index f3aad8591cf436ce37a4024dfddbbc4f8b74a7f3..094312074d663cbc093249835923a423646caa4c 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -343,6 +343,7 @@ int panfrost_mmu_init(struct panfrost_device *pfdev) mmu_write(pfdev, MMU_INT_MASK, ~0); pfdev->mmu->pgtbl_cfg = (struct io_pgtable_cfg) { + .quirks = IO_PGTABLE_QUIRK_TLBI_ON_MAP, .pgsize_bitmap = SZ_4K, // | SZ_2M | SZ_1G), .ias = 48, .oas = 40, /* Should come from dma mask? */ diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index 84beea1f47a7a79e94dcb3272312beefc6270341..45fd7bbdf9aa188608ecf7f0ccc9e1bdf18b193b 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -505,7 +505,13 @@ static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova, * Synchronise all PTE updates for the new mapping before there's * a chance for anything to kick off a table walk for the new iova. */ - wmb(); + if (data->iop.cfg.quirks & IO_PGTABLE_QUIRK_TLBI_ON_MAP) { + io_pgtable_tlb_add_flush(&data->iop, iova, size, + ARM_LPAE_BLOCK_SIZE(2, data), false); + io_pgtable_tlb_sync(&data->iop); + } else { + wmb(); + } return ret; } @@ -800,7 +806,8 @@ arm_64_lpae_alloc_pgtable_s1(struct io_pgtable_cfg *cfg, void *cookie) struct arm_lpae_io_pgtable *data; if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS | IO_PGTABLE_QUIRK_NO_DMA | - IO_PGTABLE_QUIRK_NON_STRICT)) + IO_PGTABLE_QUIRK_NON_STRICT | + IO_PGTABLE_QUIRK_TLBI_ON_MAP)) return NULL; data = arm_lpae_alloc_pgtable(cfg);