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author | Sudeep Holla <sudeep.holla@arm.com> | 2022-09-07 15:52:40 +0100 |
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committer | Sudeep Holla <sudeep.holla@arm.com> | 2022-09-08 11:34:04 +0100 |
commit | 5b0c6328e47dccf552996ca711005ca3f44034e9 (patch) | |
tree | c0250a9275b6acf3ccf050558374de06bebfc47a /drivers/tee | |
parent | 106b11b1ccd5a43432d9517f4a26629a1658cfe6 (diff) | |
download | linux-stable-5b0c6328e47dccf552996ca711005ca3f44034e9.tar.gz linux-stable-5b0c6328e47dccf552996ca711005ca3f44034e9.tar.bz2 linux-stable-5b0c6328e47dccf552996ca711005ca3f44034e9.zip |
firmware: arm_ffa: Split up ffa_ops into info, message and memory operations
In preparation to make memory operations accessible for a non
ffa_driver/device, it is better to split the ffa_ops into different
categories of operations: info, message and memory. The info and memory
are ffa_device independent and can be used without any associated
ffa_device from a non ffa_driver.
However, we don't export these info and memory APIs yet without the user.
The first users of these APIs can export them.
Link: https://lore.kernel.org/r/20220907145240.1683088-11-sudeep.holla@arm.com
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/tee')
-rw-r--r-- | drivers/tee/optee/ffa_abi.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/drivers/tee/optee/ffa_abi.c b/drivers/tee/optee/ffa_abi.c index 2ce5b87dfb27..0828240f27e6 100644 --- a/drivers/tee/optee/ffa_abi.c +++ b/drivers/tee/optee/ffa_abi.c @@ -272,7 +272,7 @@ static int optee_ffa_shm_register(struct tee_context *ctx, struct tee_shm *shm, { struct optee *optee = tee_get_drvdata(ctx->teedev); struct ffa_device *ffa_dev = optee->ffa.ffa_dev; - const struct ffa_ops *ffa_ops = ffa_dev->ops; + const struct ffa_mem_ops *mem_ops = ffa_dev->ops->mem_ops; struct ffa_mem_region_attributes mem_attr = { .receiver = ffa_dev->vm_id, .attrs = FFA_MEM_RW, @@ -294,14 +294,14 @@ static int optee_ffa_shm_register(struct tee_context *ctx, struct tee_shm *shm, if (rc) return rc; args.sg = sgt.sgl; - rc = ffa_ops->memory_share(&args); + rc = mem_ops->memory_share(&args); sg_free_table(&sgt); if (rc) return rc; rc = optee_shm_add_ffa_handle(optee, shm, args.g_handle); if (rc) { - ffa_ops->memory_reclaim(args.g_handle, 0); + mem_ops->memory_reclaim(args.g_handle, 0); return rc; } @@ -315,7 +315,8 @@ static int optee_ffa_shm_unregister(struct tee_context *ctx, { struct optee *optee = tee_get_drvdata(ctx->teedev); struct ffa_device *ffa_dev = optee->ffa.ffa_dev; - const struct ffa_ops *ffa_ops = ffa_dev->ops; + const struct ffa_msg_ops *msg_ops = ffa_dev->ops->msg_ops; + const struct ffa_mem_ops *mem_ops = ffa_dev->ops->mem_ops; u64 global_handle = shm->sec_world_id; struct ffa_send_direct_data data = { .data0 = OPTEE_FFA_UNREGISTER_SHM, @@ -327,11 +328,11 @@ static int optee_ffa_shm_unregister(struct tee_context *ctx, optee_shm_rem_ffa_handle(optee, global_handle); shm->sec_world_id = 0; - rc = ffa_ops->sync_send_receive(ffa_dev, &data); + rc = msg_ops->sync_send_receive(ffa_dev, &data); if (rc) pr_err("Unregister SHM id 0x%llx rc %d\n", global_handle, rc); - rc = ffa_ops->memory_reclaim(global_handle, 0); + rc = mem_ops->memory_reclaim(global_handle, 0); if (rc) pr_err("mem_reclaim: 0x%llx %d", global_handle, rc); @@ -342,7 +343,7 @@ static int optee_ffa_shm_unregister_supp(struct tee_context *ctx, struct tee_shm *shm) { struct optee *optee = tee_get_drvdata(ctx->teedev); - const struct ffa_ops *ffa_ops = optee->ffa.ffa_dev->ops; + const struct ffa_mem_ops *mem_ops; u64 global_handle = shm->sec_world_id; int rc; @@ -353,7 +354,8 @@ static int optee_ffa_shm_unregister_supp(struct tee_context *ctx, */ optee_shm_rem_ffa_handle(optee, global_handle); - rc = ffa_ops->memory_reclaim(global_handle, 0); + mem_ops = optee->ffa.ffa_dev->ops->mem_ops; + rc = mem_ops->memory_reclaim(global_handle, 0); if (rc) pr_err("mem_reclaim: 0x%llx %d", global_handle, rc); @@ -530,7 +532,7 @@ static int optee_ffa_yielding_call(struct tee_context *ctx, { struct optee *optee = tee_get_drvdata(ctx->teedev); struct ffa_device *ffa_dev = optee->ffa.ffa_dev; - const struct ffa_ops *ffa_ops = ffa_dev->ops; + const struct ffa_msg_ops *msg_ops = ffa_dev->ops->msg_ops; struct optee_call_waiter w; u32 cmd = data->data0; u32 w4 = data->data1; @@ -541,7 +543,7 @@ static int optee_ffa_yielding_call(struct tee_context *ctx, /* Initialize waiter */ optee_cq_wait_init(&optee->call_queue, &w); while (true) { - rc = ffa_ops->sync_send_receive(ffa_dev, data); + rc = msg_ops->sync_send_receive(ffa_dev, data); if (rc) goto done; @@ -576,7 +578,7 @@ static int optee_ffa_yielding_call(struct tee_context *ctx, * OP-TEE has returned with a RPC request. * * Note that data->data4 (passed in register w7) is already - * filled in by ffa_ops->sync_send_receive() returning + * filled in by ffa_mem_ops->sync_send_receive() returning * above. */ cond_resched(); @@ -654,12 +656,13 @@ static int optee_ffa_do_call_with_arg(struct tee_context *ctx, static bool optee_ffa_api_is_compatbile(struct ffa_device *ffa_dev, const struct ffa_ops *ops) { + const struct ffa_msg_ops *msg_ops = ops->msg_ops; struct ffa_send_direct_data data = { OPTEE_FFA_GET_API_VERSION }; int rc; - ops->mode_32bit_set(ffa_dev); + msg_ops->mode_32bit_set(ffa_dev); - rc = ops->sync_send_receive(ffa_dev, &data); + rc = msg_ops->sync_send_receive(ffa_dev, &data); if (rc) { pr_err("Unexpected error %d\n", rc); return false; @@ -672,7 +675,7 @@ static bool optee_ffa_api_is_compatbile(struct ffa_device *ffa_dev, } data = (struct ffa_send_direct_data){ OPTEE_FFA_GET_OS_VERSION }; - rc = ops->sync_send_receive(ffa_dev, &data); + rc = msg_ops->sync_send_receive(ffa_dev, &data); if (rc) { pr_err("Unexpected error %d\n", rc); return false; @@ -694,7 +697,7 @@ static bool optee_ffa_exchange_caps(struct ffa_device *ffa_dev, struct ffa_send_direct_data data = { OPTEE_FFA_EXCHANGE_CAPABILITIES }; int rc; - rc = ops->sync_send_receive(ffa_dev, &data); + rc = ops->msg_ops->sync_send_receive(ffa_dev, &data); if (rc) { pr_err("Unexpected error %d", rc); return false; |