diff options
Diffstat (limited to 'drivers/staging/android/ion/ion_system_heap.c')
| -rw-r--r-- | drivers/staging/android/ion/ion_system_heap.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 072e3ec72b57..6edd50761b04 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -2,7 +2,7 @@ * drivers/staging/android/ion/ion_system_heap.c * * Copyright (C) 2011 Google, Inc. - * Copyright (c) 2011-2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2011-2019, The Linux Foundation. All rights reserved. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and @@ -98,6 +98,11 @@ size_t ion_system_heap_secure_page_pool_total(struct ion_heap *heap, return total << PAGE_SHIFT; } +static int ion_heap_is_system_heap_type(enum ion_heap_type type) +{ + return type == ((enum ion_heap_type)ION_HEAP_TYPE_SYSTEM); +} + static struct page *alloc_buffer_page(struct ion_system_heap *heap, struct ion_buffer *buffer, unsigned long order, @@ -266,6 +271,9 @@ static struct page_info *alloc_from_pool_preferred( struct page_info *info; int i; + if (buffer->flags & ION_FLAG_POOL_FORCE_ALLOC) + goto force_alloc; + info = kmalloc(sizeof(*info), GFP_KERNEL); if (!info) return NULL; @@ -297,6 +305,7 @@ static struct page_info *alloc_from_pool_preferred( } kfree(info); +force_alloc: return alloc_largest_available(heap, buffer, size, max_order); } @@ -353,6 +362,13 @@ static int ion_system_heap_allocate(struct ion_heap *heap, int vmid = get_secure_vmid(buffer->flags); struct device *dev = heap->priv; + if (ion_heap_is_system_heap_type(buffer->heap->type) && + is_secure_vmid_valid(vmid)) { + pr_info("%s: System heap doesn't support secure allocations\n", + __func__); + return -EINVAL; + } + if (align > PAGE_SIZE) return -EINVAL; |