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authorMichael Neuling <mikey@neuling.org>2015-05-27 16:07:17 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2015-06-03 13:27:20 +1000
commit0520336afe5de76324c73f793bc40732e5c13359 (patch)
treeea2866229b78e320a4e24616b5d8881fb294e390 /drivers/misc/cxl
parentec249dd860ed88e15b3e2bd363cbfc76ba8c1884 (diff)
cxl: Export file ops for use by API
The cxl kernel API will allow drivers other than cxl to export a file descriptor which has the same userspace API. These file descriptors will be able to be used against libcxl. This exports those file ops for use by other drivers. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl')
-rw-r--r--drivers/misc/cxl/cxl.h9
-rw-r--r--drivers/misc/cxl/file.c23
2 files changed, 23 insertions, 9 deletions
diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h
index 46d806e3b943..2ec8e96e2de3 100644
--- a/drivers/misc/cxl/cxl.h
+++ b/drivers/misc/cxl/cxl.h
@@ -18,6 +18,7 @@
#include <linux/pid.h>
#include <linux/io.h>
#include <linux/pci.h>
+#include <linux/fs.h>
#include <asm/cputable.h>
#include <asm/mmu.h>
#include <asm/reg.h>
@@ -674,4 +675,12 @@ void cxl_stop_trace(struct cxl *cxl);
extern struct pci_driver cxl_pci_driver;
int afu_allocate_irqs(struct cxl_context *ctx, u32 count);
+int afu_open(struct inode *inode, struct file *file);
+int afu_release(struct inode *inode, struct file *file);
+long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+int afu_mmap(struct file *file, struct vm_area_struct *vm);
+unsigned int afu_poll(struct file *file, struct poll_table_struct *poll);
+ssize_t afu_read(struct file *file, char __user *buf, size_t count, loff_t *off);
+extern const struct file_operations afu_fops;
+
#endif
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c
index c16bd6fa06ed..e3f4b69527a9 100644
--- a/drivers/misc/cxl/file.c
+++ b/drivers/misc/cxl/file.c
@@ -96,7 +96,8 @@ err_put_adapter:
put_device(&adapter->dev);
return rc;
}
-static int afu_open(struct inode *inode, struct file *file)
+
+int afu_open(struct inode *inode, struct file *file)
{
return __afu_open(inode, file, false);
}
@@ -106,7 +107,7 @@ static int afu_master_open(struct inode *inode, struct file *file)
return __afu_open(inode, file, true);
}
-static int afu_release(struct inode *inode, struct file *file)
+int afu_release(struct inode *inode, struct file *file)
{
struct cxl_context *ctx = file->private_data;
@@ -230,7 +231,7 @@ static long afu_ioctl_get_afu_id(struct cxl_context *ctx,
return 0;
}
-static long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct cxl_context *ctx = file->private_data;
@@ -250,13 +251,13 @@ static long afu_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return -EINVAL;
}
-static long afu_compat_ioctl(struct file *file, unsigned int cmd,
+long afu_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return afu_ioctl(file, cmd, arg);
}
-static int afu_mmap(struct file *file, struct vm_area_struct *vm)
+int afu_mmap(struct file *file, struct vm_area_struct *vm)
{
struct cxl_context *ctx = file->private_data;
@@ -267,7 +268,7 @@ static int afu_mmap(struct file *file, struct vm_area_struct *vm)
return cxl_context_iomap(ctx, vm);
}
-static unsigned int afu_poll(struct file *file, struct poll_table_struct *poll)
+unsigned int afu_poll(struct file *file, struct poll_table_struct *poll)
{
struct cxl_context *ctx = file->private_data;
int mask = 0;
@@ -299,7 +300,7 @@ static inline int ctx_event_pending(struct cxl_context *ctx)
ctx->pending_afu_err || (ctx->status == CLOSED));
}
-static ssize_t afu_read(struct file *file, char __user *buf, size_t count,
+ssize_t afu_read(struct file *file, char __user *buf, size_t count,
loff_t *off)
{
struct cxl_context *ctx = file->private_data;
@@ -380,7 +381,11 @@ out:
return rc;
}
-static const struct file_operations afu_fops = {
+/*
+ * Note: if this is updated, we need to update api.c to patch the new ones in
+ * too
+ */
+const struct file_operations afu_fops = {
.owner = THIS_MODULE,
.open = afu_open,
.poll = afu_poll,
@@ -391,7 +396,7 @@ static const struct file_operations afu_fops = {
.mmap = afu_mmap,
};
-static const struct file_operations afu_master_fops = {
+const struct file_operations afu_master_fops = {
.owner = THIS_MODULE,
.open = afu_master_open,
.poll = afu_poll,