diff options
Diffstat (limited to 'drivers/tee/optee/core.c')
| -rw-r--r-- | drivers/tee/optee/core.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index 73dbb22..dad46aa 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -1,9 +1,10 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Copyright (c) 2018 Linaro Limited + * Copyright (c) 2018-2020 Linaro Limited */ #include <common.h> +#include <cpu_func.h> #include <dm.h> #include <dm/device_compat.h> #include <log.h> @@ -295,6 +296,16 @@ static u32 call_err_to_res(u32 call_err) } } +static void flush_shm_dcache(struct udevice *dev, struct optee_msg_arg *arg) +{ + size_t sz = OPTEE_MSG_GET_ARG_SIZE(arg->num_params); + + flush_dcache_range(rounddown((ulong)arg, CONFIG_SYS_CACHELINE_SIZE), + roundup((ulong)arg + sz, CONFIG_SYS_CACHELINE_SIZE)); + + tee_flush_all_shm_dcache(dev); +} + static u32 do_call_with_arg(struct udevice *dev, struct optee_msg_arg *arg) { struct optee_pdata *pdata = dev_get_plat(dev); @@ -305,9 +316,17 @@ static u32 do_call_with_arg(struct udevice *dev, struct optee_msg_arg *arg) while (true) { struct arm_smccc_res res; + /* If cache are off from U-Boot, sync the cache shared with OP-TEE */ + if (!dcache_status()) + flush_shm_dcache(dev, arg); + pdata->invoke_fn(param.a0, param.a1, param.a2, param.a3, param.a4, param.a5, param.a6, param.a7, &res); + /* If cache are off from U-Boot, sync the cache shared with OP-TEE */ + if (!dcache_status()) + flush_shm_dcache(dev, arg); + free(page_list); page_list = NULL; |