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-rw-r--r--arch/powerpc/platforms/cell/spufs/inode.c22
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c2
-rw-r--r--arch/powerpc/platforms/powernv/rng.c29
-rw-r--r--arch/powerpc/platforms/pseries/dlpar.c10
4 files changed, 45 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 1a3429e1ccb5..1ba6307be4db 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -111,7 +111,7 @@ out:
static int
spufs_setattr(struct dentry *dentry, struct iattr *attr)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = d_inode(dentry);
if ((attr->ia_valid & ATTR_SIZE) &&
(attr->ia_size != inode->i_size))
@@ -163,14 +163,14 @@ static void spufs_prune_dir(struct dentry *dir)
{
struct dentry *dentry, *tmp;
- mutex_lock(&dir->d_inode->i_mutex);
+ mutex_lock(&d_inode(dir)->i_mutex);
list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) {
spin_lock(&dentry->d_lock);
- if (!(d_unhashed(dentry)) && dentry->d_inode) {
+ if (!(d_unhashed(dentry)) && d_really_is_positive(dentry)) {
dget_dlock(dentry);
__d_drop(dentry);
spin_unlock(&dentry->d_lock);
- simple_unlink(dir->d_inode, dentry);
+ simple_unlink(d_inode(dir), dentry);
/* XXX: what was dcache_lock protecting here? Other
* filesystems (IB, configfs) release dcache_lock
* before unlink */
@@ -180,7 +180,7 @@ static void spufs_prune_dir(struct dentry *dir)
}
}
shrink_dcache_parent(dir);
- mutex_unlock(&dir->d_inode->i_mutex);
+ mutex_unlock(&d_inode(dir)->i_mutex);
}
/* Caller must hold parent->i_mutex */
@@ -192,7 +192,7 @@ static int spufs_rmdir(struct inode *parent, struct dentry *dir)
d_drop(dir);
res = simple_rmdir(parent, dir);
/* We have to give up the mm_struct */
- spu_forget(SPUFS_I(dir->d_inode)->i_ctx);
+ spu_forget(SPUFS_I(d_inode(dir))->i_ctx);
return res;
}
@@ -222,8 +222,8 @@ static int spufs_dir_close(struct inode *inode, struct file *file)
int ret;
dir = file->f_path.dentry;
- parent = dir->d_parent->d_inode;
- ctx = SPUFS_I(dir->d_inode)->i_ctx;
+ parent = d_inode(dir->d_parent);
+ ctx = SPUFS_I(d_inode(dir))->i_ctx;
mutex_lock_nested(&parent->i_mutex, I_MUTEX_PARENT);
ret = spufs_rmdir(parent, dir);
@@ -460,7 +460,7 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
goto out_aff_unlock;
if (affinity) {
- spufs_set_affinity(flags, SPUFS_I(dentry->d_inode)->i_ctx,
+ spufs_set_affinity(flags, SPUFS_I(d_inode(dentry))->i_ctx,
neighbor);
if (neighbor)
put_spu_context(neighbor);
@@ -504,7 +504,7 @@ spufs_mkgang(struct inode *dir, struct dentry *dentry, umode_t mode)
d_instantiate(dentry, inode);
inc_nlink(dir);
- inc_nlink(dentry->d_inode);
+ inc_nlink(d_inode(dentry));
return ret;
out_iput:
@@ -561,7 +561,7 @@ static struct file_system_type spufs_type;
long spufs_create(struct path *path, struct dentry *dentry,
unsigned int flags, umode_t mode, struct file *filp)
{
- struct inode *dir = path->dentry->d_inode;
+ struct inode *dir = d_inode(path->dentry);
int ret;
/* check if we are on spufs */
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 920c252d1f49..f8bc950efcae 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -2693,7 +2693,6 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
hose->last_busno = 0xff;
}
hose->private_data = phb;
- hose->controller_ops = pnv_pci_controller_ops;
phb->hub_id = hub_id;
phb->opal_id = phb_id;
phb->type = ioda_type;
@@ -2812,6 +2811,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
pnv_pci_controller_ops.enable_device_hook = pnv_pci_enable_device_hook;
pnv_pci_controller_ops.window_alignment = pnv_pci_window_alignment;
pnv_pci_controller_ops.reset_secondary_bus = pnv_pci_reset_secondary_bus;
+ hose->controller_ops = pnv_pci_controller_ops;
#ifdef CONFIG_PCI_IOV
ppc_md.pcibios_fixup_sriov = pnv_pci_ioda_fixup_iov_resources;
diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
index 80db43944afe..6eb808ff637e 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -24,12 +24,22 @@
struct powernv_rng {
void __iomem *regs;
+ void __iomem *regs_real;
unsigned long mask;
};
static DEFINE_PER_CPU(struct powernv_rng *, powernv_rng);
+int powernv_hwrng_present(void)
+{
+ struct powernv_rng *rng;
+
+ rng = get_cpu_var(powernv_rng);
+ put_cpu_var(rng);
+ return rng != NULL;
+}
+
static unsigned long rng_whiten(struct powernv_rng *rng, unsigned long val)
{
unsigned long parity;
@@ -46,6 +56,17 @@ static unsigned long rng_whiten(struct powernv_rng *rng, unsigned long val)
return val;
}
+int powernv_get_random_real_mode(unsigned long *v)
+{
+ struct powernv_rng *rng;
+
+ rng = raw_cpu_read(powernv_rng);
+
+ *v = rng_whiten(rng, in_rm64(rng->regs_real));
+
+ return 1;
+}
+
int powernv_get_random_long(unsigned long *v)
{
struct powernv_rng *rng;
@@ -80,12 +101,20 @@ static __init void rng_init_per_cpu(struct powernv_rng *rng,
static __init int rng_create(struct device_node *dn)
{
struct powernv_rng *rng;
+ struct resource res;
unsigned long val;
rng = kzalloc(sizeof(*rng), GFP_KERNEL);
if (!rng)
return -ENOMEM;
+ if (of_address_to_resource(dn, 0, &res)) {
+ kfree(rng);
+ return -ENXIO;
+ }
+
+ rng->regs_real = (void __iomem *)res.start;
+
rng->regs = of_iomap(dn, 0);
if (!rng->regs) {
kfree(rng);
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index b4b11096ea8b..019d34aaf054 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -412,6 +412,10 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
if (rc)
return -EINVAL;
+ rc = dlpar_acquire_drc(drc_index);
+ if (rc)
+ return -EINVAL;
+
parent = of_find_node_by_path("/cpus");
if (!parent)
return -ENODEV;
@@ -422,12 +426,6 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
of_node_put(parent);
- rc = dlpar_acquire_drc(drc_index);
- if (rc) {
- dlpar_free_cc_nodes(dn);
- return -EINVAL;
- }
-
rc = dlpar_attach_node(dn);
if (rc) {
dlpar_release_drc(drc_index);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.