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| author |   Volodymyr Babchuk <vlad.babchuk@gmail.com> | 2017-11-29 14:48:30 +0200 |
|---|---|---|
| committer |   Jens Wiklander <jens.wiklander@linaro.org> | 2017-12-15 13:32:31 +0100 |
| commit | 3bb48ba5cd60f9685aa8f1ccd9b14a72e237c13f (patch) | |
| tree | 21b037f0e3191eab3cdd441b6adb24d862be5c21 /drivers/tee/optee/optee_private.h | |
| parent | tee: optee: Update protocol definitions (diff) | |
| download | linux-dev-3bb48ba5cd60f9685aa8f1ccd9b14a72e237c13f.tar.xz linux-dev-3bb48ba5cd60f9685aa8f1ccd9b14a72e237c13f.zip | |
tee: optee: add page list manipulation functions
These functions will be used to pass information about shared
buffers to OP-TEE. ABI between Linux and OP-TEE is defined
in optee_msg.h and optee_smc.h.
optee_msg.h defines OPTEE_MSG_ATTR_NONCONTIG attribute
for shared memory references and describes how such references
should be passed. Note that it uses 64-bit page addresses even
on 32 bit systems. This is done to support LPAE and to unify
interface.
Signed-off-by: Volodymyr Babchuk <vlad.babchuk@gmail.com>
[jw: replacing uint64_t with u64 in optee_fill_pages_list()]
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Diffstat (limited to 'drivers/tee/optee/optee_private.h')
| -rw-r--r-- | drivers/tee/optee/optee_private.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tee/optee/optee_private.h b/drivers/tee/optee/optee_private.h index c374cd594314..b63213d09d68 100644 --- a/drivers/tee/optee/optee_private.h +++ b/drivers/tee/optee/optee_private.h @@ -165,6 +165,11 @@ int optee_from_msg_param(struct tee_param *params, size_t num_params, int optee_to_msg_param(struct optee_msg_param *msg_params, size_t num_params, const struct tee_param *params); +u64 *optee_allocate_pages_list(size_t num_entries); +void optee_free_pages_list(void *array, size_t num_entries); +void optee_fill_pages_list(u64 *dst, struct page **pages, int num_pages, + size_t page_offset); + /* * Small helpers */ |