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-rw-r--r--drivers/iommu/Kconfig1
-rw-r--r--drivers/iommu/amd/amd_iommu.h4
-rw-r--r--drivers/iommu/amd/init.c24
-rw-r--r--drivers/iommu/amd/iommu.c31
-rw-r--r--drivers/iommu/mtk_iommu.c3
-rw-r--r--drivers/iommu/rockchip-iommu.c14
6 files changed, 61 insertions, 16 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 6de900776e24..4d800601e8ec 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -282,6 +282,7 @@ config EXYNOS_IOMMU_DEBUG
config IPMMU_VMSA
bool "Renesas VMSA-compatible IPMMU"
depends on ARCH_RENESAS || COMPILE_TEST
+ depends on ARM || ARM64 || COMPILE_TEST
depends on !GENERIC_ATOMIC64 # for IOMMU_IO_PGTABLE_LPAE
select IOMMU_API
select IOMMU_IO_PGTABLE_LPAE
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index e98f20a9bdd8..9beeceb9d825 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h
@@ -15,9 +15,7 @@ extern irqreturn_t amd_iommu_int_thread(int irq, void *data);
extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
extern void amd_iommu_apply_erratum_63(struct amd_iommu *iommu, u16 devid);
extern void amd_iommu_restart_event_logging(struct amd_iommu *iommu);
-extern int amd_iommu_init_devices(void);
-extern void amd_iommu_uninit_devices(void);
-extern void amd_iommu_init_notifier(void);
+extern void amd_iommu_restart_ga_log(struct amd_iommu *iommu);
extern void amd_iommu_set_rlookup_table(struct amd_iommu *iommu, u16 devid);
#ifdef CONFIG_AMD_IOMMU_DEBUGFS
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 329a406cc37d..c2d80a4e5fb0 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -759,6 +759,30 @@ void amd_iommu_restart_event_logging(struct amd_iommu *iommu)
}
/*
+ * This function restarts event logging in case the IOMMU experienced
+ * an GA log overflow.
+ */
+void amd_iommu_restart_ga_log(struct amd_iommu *iommu)
+{
+ u32 status;
+
+ status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+ if (status & MMIO_STATUS_GALOG_RUN_MASK)
+ return;
+
+ pr_info_ratelimited("IOMMU GA Log restarting\n");
+
+ iommu_feature_disable(iommu, CONTROL_GALOG_EN);
+ iommu_feature_disable(iommu, CONTROL_GAINT_EN);
+
+ writel(MMIO_STATUS_GALOG_OVERFLOW_MASK,
+ iommu->mmio_base + MMIO_STATUS_OFFSET);
+
+ iommu_feature_enable(iommu, CONTROL_GAINT_EN);
+ iommu_feature_enable(iommu, CONTROL_GALOG_EN);
+}
+
+/*
* This function resets the command buffer if the IOMMU stopped fetching
* commands from it.
*/
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 4a314647d1f7..dc1ec6849775 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -845,6 +845,7 @@ amd_iommu_set_pci_msi_domain(struct device *dev, struct amd_iommu *iommu) { }
(MMIO_STATUS_EVT_OVERFLOW_INT_MASK | \
MMIO_STATUS_EVT_INT_MASK | \
MMIO_STATUS_PPR_INT_MASK | \
+ MMIO_STATUS_GALOG_OVERFLOW_MASK | \
MMIO_STATUS_GALOG_INT_MASK)
irqreturn_t amd_iommu_int_thread(int irq, void *data)
@@ -868,10 +869,16 @@ irqreturn_t amd_iommu_int_thread(int irq, void *data)
}
#ifdef CONFIG_IRQ_REMAP
- if (status & MMIO_STATUS_GALOG_INT_MASK) {
+ if (status & (MMIO_STATUS_GALOG_INT_MASK |
+ MMIO_STATUS_GALOG_OVERFLOW_MASK)) {
pr_devel("Processing IOMMU GA Log\n");
iommu_poll_ga_log(iommu);
}
+
+ if (status & MMIO_STATUS_GALOG_OVERFLOW_MASK) {
+ pr_info_ratelimited("IOMMU GA Log overflow\n");
+ amd_iommu_restart_ga_log(iommu);
+ }
#endif
if (status & MMIO_STATUS_EVT_OVERFLOW_INT_MASK) {
@@ -2067,7 +2074,7 @@ static struct protection_domain *protection_domain_alloc(unsigned int type)
{
struct io_pgtable_ops *pgtbl_ops;
struct protection_domain *domain;
- int pgtable = amd_iommu_pgtable;
+ int pgtable;
int mode = DEFAULT_PGTABLE_LEVEL;
int ret;
@@ -2084,6 +2091,10 @@ static struct protection_domain *protection_domain_alloc(unsigned int type)
mode = PAGE_MODE_NONE;
} else if (type == IOMMU_DOMAIN_UNMANAGED) {
pgtable = AMD_IOMMU_V1;
+ } else if (type == IOMMU_DOMAIN_DMA || type == IOMMU_DOMAIN_DMA_FQ) {
+ pgtable = amd_iommu_pgtable;
+ } else {
+ return NULL;
}
switch (pgtable) {
@@ -2118,6 +2129,15 @@ out_err:
return NULL;
}
+static inline u64 dma_max_address(void)
+{
+ if (amd_iommu_pgtable == AMD_IOMMU_V1)
+ return ~0ULL;
+
+ /* V2 with 4/5 level page table */
+ return ((1ULL << PM_LEVEL_SHIFT(amd_iommu_gpt_level)) - 1);
+}
+
static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
{
struct protection_domain *domain;
@@ -2134,7 +2154,7 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
return NULL;
domain->domain.geometry.aperture_start = 0;
- domain->domain.geometry.aperture_end = ~0ULL;
+ domain->domain.geometry.aperture_end = dma_max_address();
domain->domain.geometry.force_aperture = true;
return &domain->domain;
@@ -2387,7 +2407,7 @@ static void amd_iommu_iotlb_sync(struct iommu_domain *domain,
unsigned long flags;
spin_lock_irqsave(&dom->lock, flags);
- domain_flush_pages(dom, gather->start, gather->end - gather->start, 1);
+ domain_flush_pages(dom, gather->start, gather->end - gather->start + 1, 1);
amd_iommu_domain_flush_complete(dom);
spin_unlock_irqrestore(&dom->lock, flags);
}
@@ -3493,8 +3513,7 @@ int amd_iommu_activate_guest_mode(void *data)
struct irte_ga *entry = (struct irte_ga *) ir_data->entry;
u64 valid;
- if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) ||
- !entry || entry->lo.fields_vapic.guest_mode)
+ if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir) || !entry)
return 0;
valid = entry->lo.fields_vapic.valid;
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index aecc7d154f28..e93906d6e112 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -781,7 +781,8 @@ static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
- mtk_iommu_tlb_flush_all(dom->bank->parent_data);
+ if (dom->bank)
+ mtk_iommu_tlb_flush_all(dom->bank->parent_data);
}
static void mtk_iommu_iotlb_sync(struct iommu_domain *domain,
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index ea5a3088bb7e..4054030c3237 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1335,20 +1335,22 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < iommu->num_irq; i++) {
int irq = platform_get_irq(pdev, i);
- if (irq < 0)
- return irq;
+ if (irq < 0) {
+ err = irq;
+ goto err_pm_disable;
+ }
err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
- if (err) {
- pm_runtime_disable(dev);
- goto err_remove_sysfs;
- }
+ if (err)
+ goto err_pm_disable;
}
dma_set_mask_and_coherent(dev, rk_ops->dma_bit_mask);
return 0;
+err_pm_disable:
+ pm_runtime_disable(dev);
err_remove_sysfs:
iommu_device_sysfs_remove(&iommu->iommu);
err_put_group:
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 05:45:00 +0000