diff options
| author | Andrew Davis <afd@ti.com> | 2022-04-25 17:16:16 +0300 |
|---|---|---|
| committer | Jens Wiklander <jens.wiklander@linaro.org> | 2022-04-26 11:16:48 +0300 |
| commit | 66eb6df79aefd6b3f7d2e749da7104e90cedc0ff (patch) | |
| tree | 386efc5c6e709bce150ccb79699f77581757d1f2 | |
| parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
| download | linux-66eb6df79aefd6b3f7d2e749da7104e90cedc0ff.tar.xz | |
tee: remove tee_shm_va2pa() and tee_shm_pa2va()
We should not need to index into SHMs based on absolute VA/PA.
These functions are not used and this kind of usage should not be
encouraged anyway. Remove these functions.
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
| -rw-r--r-- | drivers/tee/tee_shm.c | 50 | ||||
| -rw-r--r-- | include/linux/tee_drv.h | 18 |
2 files changed, 0 insertions, 68 deletions
diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c index f31e29e8f1ca..b0c6d553d3a7 100644 --- a/drivers/tee/tee_shm.c +++ b/drivers/tee/tee_shm.c @@ -415,56 +415,6 @@ void tee_shm_free(struct tee_shm *shm) EXPORT_SYMBOL_GPL(tee_shm_free); /** - * tee_shm_va2pa() - Get physical address of a virtual address - * @shm: Shared memory handle - * @va: Virtual address to tranlsate - * @pa: Returned physical address - * @returns 0 on success and < 0 on failure - */ -int tee_shm_va2pa(struct tee_shm *shm, void *va, phys_addr_t *pa) -{ - if (!shm->kaddr) - return -EINVAL; - /* Check that we're in the range of the shm */ - if ((char *)va < (char *)shm->kaddr) - return -EINVAL; - if ((char *)va >= ((char *)shm->kaddr + shm->size)) - return -EINVAL; - - return tee_shm_get_pa( - shm, (unsigned long)va - (unsigned long)shm->kaddr, pa); -} -EXPORT_SYMBOL_GPL(tee_shm_va2pa); - -/** - * tee_shm_pa2va() - Get virtual address of a physical address - * @shm: Shared memory handle - * @pa: Physical address to tranlsate - * @va: Returned virtual address - * @returns 0 on success and < 0 on failure - */ -int tee_shm_pa2va(struct tee_shm *shm, phys_addr_t pa, void **va) -{ - if (!shm->kaddr) - return -EINVAL; - /* Check that we're in the range of the shm */ - if (pa < shm->paddr) - return -EINVAL; - if (pa >= (shm->paddr + shm->size)) - return -EINVAL; - - if (va) { - void *v = tee_shm_get_va(shm, pa - shm->paddr); - - if (IS_ERR(v)) - return PTR_ERR(v); - *va = v; - } - return 0; -} -EXPORT_SYMBOL_GPL(tee_shm_pa2va); - -/** * tee_shm_get_va() - Get virtual address of a shared memory plus an offset * @shm: Shared memory handle * @offs: Offset from start of this shared memory diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 911cad324acc..17eb1c5205d3 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -299,24 +299,6 @@ void tee_shm_free(struct tee_shm *shm); void tee_shm_put(struct tee_shm *shm); /** - * tee_shm_va2pa() - Get physical address of a virtual address - * @shm: Shared memory handle - * @va: Virtual address to tranlsate - * @pa: Returned physical address - * @returns 0 on success and < 0 on failure - */ -int tee_shm_va2pa(struct tee_shm *shm, void *va, phys_addr_t *pa); - -/** - * tee_shm_pa2va() - Get virtual address of a physical address - * @shm: Shared memory handle - * @pa: Physical address to tranlsate - * @va: Returned virtual address - * @returns 0 on success and < 0 on failure - */ -int tee_shm_pa2va(struct tee_shm *shm, phys_addr_t pa, void **va); - -/** * tee_shm_get_va() - Get virtual address of a shared memory plus an offset * @shm: Shared memory handle * @offs: Offset from start of this shared memory |