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path: root/drivers/iommu/mtk_iommu.c
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Diffstat (limited to 'drivers/iommu/mtk_iommu.c')
-rw-r--r--drivers/iommu/mtk_iommu.c83
1 files changed, 48 insertions, 35 deletions
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c45313c43b9e..0e0285348d2b 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -29,6 +29,7 @@
#include <linux/spinlock.h>
#include <linux/soc/mediatek/infracfg.h>
#include <linux/soc/mediatek/mtk_sip_svc.h>
+#include <linux/string_choices.h>
#include <asm/barrier.h>
#include <soc/mediatek/smi.h>
@@ -510,7 +511,7 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
bank->parent_dev,
"fault type=0x%x iova=0x%llx pa=0x%llx master=0x%x(larb=%d port=%d) layer=%d %s\n",
int_state, fault_iova, fault_pa, regval, fault_larb, fault_port,
- layer, write ? "write" : "read");
+ layer, str_write_read(write));
}
/* Interrupt clear */
@@ -602,7 +603,7 @@ static int mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev,
larb_mmu->bank[portid] = upper_32_bits(region->iova_base);
dev_dbg(dev, "%s iommu for larb(%s) port 0x%lx region %d rgn-bank %d.\n",
- enable ? "enable" : "disable", dev_name(larb_mmu->dev),
+ str_enable_disable(enable), dev_name(larb_mmu->dev),
portid_msk, regionid, upper_32_bits(region->iova_base));
if (enable)
@@ -630,8 +631,8 @@ static int mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev,
}
if (ret)
dev_err(dev, "%s iommu(%s) inframaster 0x%lx fail(%d).\n",
- enable ? "enable" : "disable",
- dev_name(data->dev), portid_msk, ret);
+ str_enable_disable(enable), dev_name(data->dev),
+ portid_msk, ret);
}
return ret;
}
@@ -647,7 +648,7 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
if (share_dom) {
dom->iop = share_dom->iop;
dom->cfg = share_dom->cfg;
- dom->domain.pgsize_bitmap = share_dom->cfg.pgsize_bitmap;
+ dom->domain.pgsize_bitmap = share_dom->domain.pgsize_bitmap;
goto update_iova_region;
}
@@ -655,7 +656,7 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
.quirks = IO_PGTABLE_QUIRK_ARM_NS |
IO_PGTABLE_QUIRK_NO_PERMS |
IO_PGTABLE_QUIRK_ARM_MTK_EXT,
- .pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap,
+ .pgsize_bitmap = dom->domain.pgsize_bitmap,
.ias = MTK_IOMMU_HAS_FLAG(data->plat_data, IOVA_34_EN) ? 34 : 32,
.iommu_dev = data->dev,
};
@@ -674,9 +675,6 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
return -ENOMEM;
}
- /* Update our support page sizes bitmap */
- dom->domain.pgsize_bitmap = dom->cfg.pgsize_bitmap;
-
data->share_dom = dom;
update_iova_region:
@@ -696,6 +694,7 @@ static struct iommu_domain *mtk_iommu_domain_alloc_paging(struct device *dev)
if (!dom)
return NULL;
mutex_init(&dom->mutex);
+ dom->domain.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M;
return &dom->domain;
}
@@ -1018,7 +1017,6 @@ static const struct iommu_ops mtk_iommu_ops = {
.device_group = mtk_iommu_device_group,
.of_xlate = mtk_iommu_of_xlate,
.get_resv_regions = mtk_iommu_get_resv_regions,
- .pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
.owner = THIS_MODULE,
.default_domain_ops = &(const struct iommu_domain_ops) {
.attach_dev = mtk_iommu_attach_device,
@@ -1371,15 +1369,6 @@ static int mtk_iommu_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, data);
mutex_init(&data->mutex);
- ret = iommu_device_sysfs_add(&data->iommu, dev, NULL,
- "mtk-iommu.%pa", &ioaddr);
- if (ret)
- goto out_link_remove;
-
- ret = iommu_device_register(&data->iommu, &mtk_iommu_ops, dev);
- if (ret)
- goto out_sysfs_remove;
-
if (MTK_IOMMU_HAS_FLAG(data->plat_data, SHARE_PGTABLE)) {
list_add_tail(&data->list, data->plat_data->hw_list);
data->hw_list = data->plat_data->hw_list;
@@ -1389,19 +1378,28 @@ static int mtk_iommu_probe(struct platform_device *pdev)
data->hw_list = &data->hw_list_head;
}
+ ret = iommu_device_sysfs_add(&data->iommu, dev, NULL,
+ "mtk-iommu.%pa", &ioaddr);
+ if (ret)
+ goto out_list_del;
+
+ ret = iommu_device_register(&data->iommu, &mtk_iommu_ops, dev);
+ if (ret)
+ goto out_sysfs_remove;
+
if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM)) {
ret = component_master_add_with_match(dev, &mtk_iommu_com_ops, match);
if (ret)
- goto out_list_del;
+ goto out_device_unregister;
}
return ret;
-out_list_del:
- list_del(&data->list);
+out_device_unregister:
iommu_device_unregister(&data->iommu);
out_sysfs_remove:
iommu_device_sysfs_remove(&data->iommu);
-out_link_remove:
+out_list_del:
+ list_del(&data->list);
if (MTK_IOMMU_IS_TYPE(data->plat_data, MTK_IOMMU_TYPE_MM))
device_link_remove(data->smicomm_dev, dev);
out_runtime_disable:
@@ -1549,6 +1547,31 @@ static const struct mtk_iommu_plat_data mt6795_data = {
.larbid_remap = {{0}, {1}, {2}, {3}, {4}}, /* Linear mapping. */
};
+static const unsigned int mt8192_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = {
+ [0] = {~0, ~0}, /* Region0: larb0/1 */
+ [1] = {0, 0, 0, 0, ~0, ~0, 0, ~0}, /* Region1: larb4/5/7 */
+ [2] = {0, 0, ~0, 0, 0, 0, 0, 0, /* Region2: larb2/9/11/13/14/16/17/18/19/20 */
+ 0, ~0, 0, ~0, 0, ~(u32)(BIT(9) | BIT(10)), ~(u32)(BIT(4) | BIT(5)), 0,
+ ~0, ~0, ~0, ~0, ~0},
+ [3] = {0},
+ [4] = {[13] = BIT(9) | BIT(10)}, /* larb13 port9/10 */
+ [5] = {[14] = BIT(4) | BIT(5)}, /* larb14 port4/5 */
+};
+
+static const struct mtk_iommu_plat_data mt6893_data = {
+ .m4u_plat = M4U_MT8192,
+ .flags = HAS_BCLK | OUT_ORDER_WR_EN | HAS_SUB_COMM_2BITS |
+ WR_THROT_EN | IOVA_34_EN | SHARE_PGTABLE | MTK_IOMMU_TYPE_MM,
+ .inv_sel_reg = REG_MMU_INV_SEL_GEN2,
+ .banks_num = 1,
+ .banks_enable = {true},
+ .iova_region = mt8192_multi_dom,
+ .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+ .iova_region_larb_msk = mt8192_larb_region_msk,
+ .larbid_remap = {{0}, {1}, {4, 5}, {7}, {2}, {9, 11, 19, 20},
+ {0, 14, 16}, {0, 13, 18, 17}},
+};
+
static const struct mtk_iommu_plat_data mt8167_data = {
.m4u_plat = M4U_MT8167,
.flags = RESET_AXI | HAS_LEGACY_IVRP_PADDR | MTK_IOMMU_TYPE_MM,
@@ -1672,17 +1695,6 @@ static const struct mtk_iommu_plat_data mt8188_data_vpp = {
27, 28 /* ccu0 */, MTK_INVALID_LARBID}, {4, 6}},
};
-static const unsigned int mt8192_larb_region_msk[MT8192_MULTI_REGION_NR_MAX][MTK_LARB_NR_MAX] = {
- [0] = {~0, ~0}, /* Region0: larb0/1 */
- [1] = {0, 0, 0, 0, ~0, ~0, 0, ~0}, /* Region1: larb4/5/7 */
- [2] = {0, 0, ~0, 0, 0, 0, 0, 0, /* Region2: larb2/9/11/13/14/16/17/18/19/20 */
- 0, ~0, 0, ~0, 0, ~(u32)(BIT(9) | BIT(10)), ~(u32)(BIT(4) | BIT(5)), 0,
- ~0, ~0, ~0, ~0, ~0},
- [3] = {0},
- [4] = {[13] = BIT(9) | BIT(10)}, /* larb13 port9/10 */
- [5] = {[14] = BIT(4) | BIT(5)}, /* larb14 port4/5 */
-};
-
static const struct mtk_iommu_plat_data mt8192_data = {
.m4u_plat = M4U_MT8192,
.flags = HAS_BCLK | HAS_SUB_COMM_2BITS | OUT_ORDER_WR_EN |
@@ -1776,6 +1788,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
{ .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data},
{ .compatible = "mediatek,mt6779-m4u", .data = &mt6779_data},
{ .compatible = "mediatek,mt6795-m4u", .data = &mt6795_data},
+ { .compatible = "mediatek,mt6893-iommu-mm", .data = &mt6893_data},
{ .compatible = "mediatek,mt8167-m4u", .data = &mt8167_data},
{ .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data},
{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
@@ -1794,7 +1807,7 @@ MODULE_DEVICE_TABLE(of, mtk_iommu_of_ids);
static struct platform_driver mtk_iommu_driver = {
.probe = mtk_iommu_probe,
- .remove_new = mtk_iommu_remove,
+ .remove = mtk_iommu_remove,
.driver = {
.name = "mtk-iommu",
.of_match_table = mtk_iommu_of_ids,
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-29 14:16:49 +0300