diff options
| author | Alex Waterman <alexw@nvidia.com> | 2013-11-13 11:56:38 -0800 |
|---|---|---|
| committer | Gerrit Code Review <gerrit2@nvidia.com> | 2014-03-11 22:48:51 -0700 |
| commit | b36bd3ecf8ebb3c6a748f8cdc7fe5c80bfbcb616 (patch) | |
| tree | caed9427167a8ec3cbcf6dcd62cd7a37d103fe31 /include | |
| parent | 999acb87fffe01365485333ac28b160a34502efb (diff) | |
video: tegra: nvmap: Add new cache maint op
Add a new IOCTL to nvmap that allows cache maintenance to
be done on multiple handles with on ioctl call.
Bug 1373180
Change-Id: I122221ae83a8fe9dc9382c48d9a145b32b34b9c6
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nvmap.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/nvmap.h b/include/linux/nvmap.h index d4ea27ef55f7..706d462dbb83 100644 --- a/include/linux/nvmap.h +++ b/include/linux/nvmap.h @@ -235,6 +235,15 @@ struct nvmap_cache_op_32 { }; #endif +struct nvmap_cache_op_list { +#ifdef CONFIG_COMPAT + __u32 handles; /* Uspace ptr to list of handles */ +#else + struct nvmap_handle **handles; +#endif + __u32 nr; /* Number of handles */ +}; + #define NVMAP_IOC_MAGIC 'N' /* Creates a new memory handle. On input, the argument is the size of the new @@ -301,6 +310,9 @@ struct nvmap_cache_op_32 { /* Create a new memory handle from file id passed */ #define NVMAP_IOC_FROM_FD _IOWR(NVMAP_IOC_MAGIC, 16, struct nvmap_create_handle) +/* Perform cache maintenance on a list of handles. */ +#define NVMAP_IOC_CACHE_LIST _IOW(NVMAP_IOC_MAGIC, 17, \ + struct nvmap_cache_op_list) /* START of T124 IOCTLS */ /* Actually allocates memory for the specified handle, with kind */ #define NVMAP_IOC_ALLOC_KIND _IOW(NVMAP_IOC_MAGIC, 100, struct nvmap_alloc_kind_handle) |