diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/nvmap.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/include/mach/nvmap.h b/arch/arm/mach-tegra/include/mach/nvmap.h index 0e813bcd7562..ad23caa45cfb 100644 --- a/arch/arm/mach-tegra/include/mach/nvmap.h +++ b/arch/arm/mach-tegra/include/mach/nvmap.h @@ -22,6 +22,7 @@ #include <linux/ioctl.h> #include <linux/file.h> +#include <linux/rbtree.h> #if !defined(__KERNEL__) #define __user @@ -52,7 +53,6 @@ #if defined(__KERNEL__) -struct nvmap_handle_ref; struct nvmap_handle; struct nvmap_client; struct nvmap_device; @@ -67,6 +67,17 @@ struct nvmap_pinarray_elem { __u32 pin_offset; }; +/* handle_ref objects are client-local references to an nvmap_handle; + * they are distinct objects so that handles can be unpinned and + * unreferenced the correct number of times when a client abnormally + * terminates */ +struct nvmap_handle_ref { + struct nvmap_handle *handle; + struct rb_node node; + atomic_t dupes; /* number of times to free on file close */ + atomic_t pin; /* number of times to unpin on free */ +}; + struct nvmap_client *nvmap_create_client(struct nvmap_device *dev, const char *name); |