diff options
| author | Neeti Desai <neetid@codeaurora.org> | 2015-02-25 16:36:58 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:04:25 -0700 |
| commit | 6b46fc5b3bacfd808d5388a45cfdc002cbb9dbde (patch) | |
| tree | 1d392e95975745436f0b4e8de5fca2d706359cae | |
| parent | 19cf289669e8dc5f76f8a562339f7d64c9ed2cf6 (diff) | |
msm: ion: Add support to flush the caches before hypervisor call
The buffers passed to the secure world in they hypervisor assign
call need to be flushed, so that they can be accessed by the
secure world. Flush the caches before making the hypervisor call.
CRs-Fixed: 798525
Change-Id: I95862f09daa3b0edc5e32863c6defc657f98b534
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
| -rw-r--r-- | drivers/staging/android/ion/msm/secure_buffer.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/staging/android/ion/msm/secure_buffer.c b/drivers/staging/android/ion/msm/secure_buffer.c index ee583220c60a..4d188a270005 100644 --- a/drivers/staging/android/ion/msm/secure_buffer.c +++ b/drivers/staging/android/ion/msm/secure_buffer.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2011 Google, Inc - * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved. + * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -239,6 +239,13 @@ int msm_ion_hyp_assign_call(struct sg_table *table, desc.arginfo = SCM_ARGS(7, SCM_RO, SCM_VAL, SCM_RO, SCM_VAL, SCM_RO, SCM_VAL, SCM_VAL); + dmac_flush_range(info_list->list_head, info_list->list_head + + (info_list->list_size / sizeof(*info_list->list_head))); + dmac_flush_range(source_vm_list, source_vm_list + + (source_list_size / sizeof(*source_vm_list))); + dmac_flush_range(dest_vm_list, dest_vm_list + + (dest_list_size / sizeof(*dest_vm_list))); + ret = scm_call2(SCM_SIP_FNID(SCM_SVC_MP, MEM_PROT_ASSIGN_ID), &desc); if (ret) |