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-rw-r--r--drivers/iommu/amd_iommu.c3
-rw-r--r--drivers/iommu/msm_iommu.c7
-rw-r--r--drivers/iommu/omap-iommu-debug.c59
-rw-r--r--drivers/iommu/omap-iommu.c3
4 files changed, 51 insertions, 21 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index cce1f03..f75e060 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2863,6 +2863,9 @@ static unsigned device_dma_ops_init(void)
for_each_pci_dev(pdev) {
if (!check_device(&pdev->dev)) {
+
+ iommu_ignore_device(&pdev->dev);
+
unhandled += 1;
continue;
}
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 08a90b8..cee307e 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -482,23 +482,19 @@ static size_t msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
priv = domain->priv;
- if (!priv) {
- ret = -ENODEV;
+ if (!priv)
goto fail;
- }
fl_table = priv->pgtable;
if (len != SZ_16M && len != SZ_1M &&
len != SZ_64K && len != SZ_4K) {
pr_debug("Bad length: %d\n", len);
- ret = -EINVAL;
goto fail;
}
if (!fl_table) {
pr_debug("Null page table\n");
- ret = -EINVAL;
goto fail;
}
@@ -507,7 +503,6 @@ static size_t msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
if (*fl_pte == 0) {
pr_debug("First level PTE is 0\n");
- ret = -ENODEV;
goto fail;
}
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index 288da5c..103dbd9 100644
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -44,7 +44,8 @@ static ssize_t debug_read_ver(struct file *file, char __user *userbuf,
static ssize_t debug_read_regs(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
+ struct omap_iommu *obj = dev_to_omap_iommu(dev);
char *p, *buf;
ssize_t bytes;
@@ -67,7 +68,8 @@ static ssize_t debug_read_regs(struct file *file, char __user *userbuf,
static ssize_t debug_read_tlb(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
+ struct omap_iommu *obj = dev_to_omap_iommu(dev);
char *p, *buf;
ssize_t bytes, rest;
@@ -97,7 +99,8 @@ static ssize_t debug_write_pagetable(struct file *file,
struct iotlb_entry e;
struct cr_regs cr;
int err;
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
+ struct omap_iommu *obj = dev_to_omap_iommu(dev);
char buf[MAXCOLUMN], *p = buf;
count = min(count, sizeof(buf));
@@ -184,7 +187,8 @@ out:
static ssize_t debug_read_pagetable(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
+ struct omap_iommu *obj = dev_to_omap_iommu(dev);
char *p, *buf;
size_t bytes;
@@ -212,7 +216,8 @@ static ssize_t debug_read_pagetable(struct file *file, char __user *userbuf,
static ssize_t debug_read_mmap(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
+ struct omap_iommu *obj = dev_to_omap_iommu(dev);
char *p, *buf;
struct iovm_struct *tmp;
int uninitialized_var(i);
@@ -254,7 +259,7 @@ static ssize_t debug_read_mmap(struct file *file, char __user *userbuf,
static ssize_t debug_read_mem(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
char *p, *buf;
struct iovm_struct *area;
ssize_t bytes;
@@ -268,8 +273,8 @@ static ssize_t debug_read_mem(struct file *file, char __user *userbuf,
mutex_lock(&iommu_debug_lock);
- area = omap_find_iovm_area(obj, (u32)ppos);
- if (IS_ERR(area)) {
+ area = omap_find_iovm_area(dev, (u32)ppos);
+ if (!area) {
bytes = -EINVAL;
goto err_out;
}
@@ -287,7 +292,7 @@ err_out:
static ssize_t debug_write_mem(struct file *file, const char __user *userbuf,
size_t count, loff_t *ppos)
{
- struct omap_iommu *obj = file->private_data;
+ struct device *dev = file->private_data;
struct iovm_struct *area;
char *p, *buf;
@@ -305,8 +310,8 @@ static ssize_t debug_write_mem(struct file *file, const char __user *userbuf,
goto err_out;
}
- area = omap_find_iovm_area(obj, (u32)ppos);
- if (IS_ERR(area)) {
+ area = omap_find_iovm_area(dev, (u32)ppos);
+ if (!area) {
count = -EINVAL;
goto err_out;
}
@@ -350,7 +355,7 @@ DEBUG_FOPS(mem);
{ \
struct dentry *dent; \
dent = debugfs_create_file(#attr, mode, parent, \
- obj, &debug_##attr##_fops); \
+ dev, &debug_##attr##_fops); \
if (!dent) \
return -ENOMEM; \
}
@@ -362,20 +367,29 @@ static int iommu_debug_register(struct device *dev, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
struct omap_iommu *obj = platform_get_drvdata(pdev);
+ struct omap_iommu_arch_data *arch_data;
struct dentry *d, *parent;
if (!obj || !obj->dev)
return -EINVAL;
+ arch_data = kzalloc(sizeof(*arch_data), GFP_KERNEL);
+ if (!arch_data)
+ return -ENOMEM;
+
+ arch_data->iommu_dev = obj;
+
+ dev->archdata.iommu = arch_data;
+
d = debugfs_create_dir(obj->name, iommu_debug_root);
if (!d)
- return -ENOMEM;
+ goto nomem;
parent = d;
d = debugfs_create_u8("nr_tlb_entries", 400, parent,
(u8 *)&obj->nr_tlb_entries);
if (!d)
- return -ENOMEM;
+ goto nomem;
DEBUG_ADD_FILE_RO(ver);
DEBUG_ADD_FILE_RO(regs);
@@ -385,6 +399,22 @@ static int iommu_debug_register(struct device *dev, void *data)
DEBUG_ADD_FILE(mem);
return 0;
+
+nomem:
+ kfree(arch_data);
+ return -ENOMEM;
+}
+
+static int iommu_debug_unregister(struct device *dev, void *data)
+{
+ if (!dev->archdata.iommu)
+ return 0;
+
+ kfree(dev->archdata.iommu);
+
+ dev->archdata.iommu = NULL;
+
+ return 0;
}
static int __init iommu_debug_init(void)
@@ -411,6 +441,7 @@ module_init(iommu_debug_init)
static void __exit iommu_debugfs_exit(void)
{
debugfs_remove_recursive(iommu_debug_root);
+ omap_foreach_iommu_device(NULL, iommu_debug_unregister);
}
module_exit(iommu_debugfs_exit)
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d8edd97..6899dcd 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1223,7 +1223,8 @@ static int __init omap_iommu_init(void)
return platform_driver_register(&omap_iommu_driver);
}
-module_init(omap_iommu_init);
+/* must be ready before omap3isp is probed */
+subsys_initcall(omap_iommu_init);
static void __exit omap_iommu_exit(void)
{
generated by cgit v0.10.2 at 2024-07-21 14:24:36 (GMT)