diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/android/ion/Kconfig | 25 | ||||
| -rw-r--r-- | drivers/staging/android/ion/Makefile | 7 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion.c | 28 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion.h | 40 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion_carveout_heap.c | 10 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion_chunk_heap.c | 9 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion_cma_heap.c | 24 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion_heap.c | 71 | ||||
| -rw-r--r-- | drivers/staging/android/ion/ion_system_heap.c | 38 |
9 files changed, 85 insertions, 167 deletions
diff --git a/drivers/staging/android/ion/Kconfig b/drivers/staging/android/ion/Kconfig index 15108c40c81f..a517b2d29f1b 100644 --- a/drivers/staging/android/ion/Kconfig +++ b/drivers/staging/android/ion/Kconfig @@ -10,6 +10,31 @@ menuconfig ION If you're not using Android its probably safe to say N here. +config ION_SYSTEM_HEAP + bool "Ion system heap" + depends on ION + help + Choose this option to enable the Ion system heap. The system heap + is backed by pages from the buddy allocator. If in doubt, say Y. + +config ION_CARVEOUT_HEAP + bool "Ion carveout heap support" + depends on ION + help + Choose this option to enable carveout heaps with Ion. Carveout heaps + are backed by memory reserved from the system. Allocation times are + typically faster at the cost of memory not being used. Unless you + know your system has these regions, you should say N here. + +config ION_CHUNK_HEAP + bool "Ion chunk heap support" + depends on ION + help + Choose this option to enable chunk heaps with Ion. This heap is + similar in function the carveout heap but memory is broken down + into smaller chunk sizes, typically corresponding to a TLB size. + Unless you know your system has these regions, you should say N here. + config ION_CMA_HEAP bool "Ion CMA heap support" depends on ION && CMA diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile index a892afa56819..eb7eeed6ae40 100644 --- a/drivers/staging/android/ion/Makefile +++ b/drivers/staging/android/ion/Makefile @@ -1,4 +1,5 @@ -obj-$(CONFIG_ION) += ion.o ion-ioctl.o ion_heap.o \ - ion_page_pool.o ion_system_heap.o \ - ion_carveout_heap.o ion_chunk_heap.o +obj-$(CONFIG_ION) += ion.o ion-ioctl.o ion_heap.o +obj-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o +obj-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o +obj-$(CONFIG_ION_CHUNK_HEAP) += ion_chunk_heap.o obj-$(CONFIG_ION_CMA_HEAP) += ion_cma_heap.o diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index e1fb86530c96..7d402334a546 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -40,6 +40,9 @@ #include "ion.h" +static struct ion_device *internal_dev; +static int heap_id = 0; + bool ion_buffer_cached(struct ion_buffer *buffer) { return !!(buffer->flags & ION_FLAG_CACHED); @@ -1198,9 +1201,10 @@ static int debug_shrink_get(void *data, u64 *val) DEFINE_SIMPLE_ATTRIBUTE(debug_shrink_fops, debug_shrink_get, debug_shrink_set, "%llu\n"); -void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) +void ion_device_add_heap(struct ion_heap *heap) { struct dentry *debug_file; + struct ion_device *dev = internal_dev; if (!heap->ops->allocate || !heap->ops->free) pr_err("%s: can not add heap with invalid ops struct.\n", @@ -1217,6 +1221,7 @@ void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) heap->dev = dev; down_write(&dev->lock); + heap->id = heap_id++; /* * use negative heap->id to reverse the priority -- when traversing * the list later attempt higher id numbers first @@ -1256,14 +1261,14 @@ void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap) } EXPORT_SYMBOL(ion_device_add_heap); -struct ion_device *ion_device_create(void) +int ion_device_create(void) { struct ion_device *idev; int ret; idev = kzalloc(sizeof(*idev), GFP_KERNEL); if (!idev) - return ERR_PTR(-ENOMEM); + return -ENOMEM; idev->dev.minor = MISC_DYNAMIC_MINOR; idev->dev.name = "ion"; @@ -1273,7 +1278,7 @@ struct ion_device *ion_device_create(void) if (ret) { pr_err("ion: failed to register misc device.\n"); kfree(idev); - return ERR_PTR(ret); + return ret; } idev->debug_root = debugfs_create_dir("ion", NULL); @@ -1292,7 +1297,6 @@ struct ion_device *ion_device_create(void) pr_err("ion: failed to create debugfs clients directory.\n"); debugfs_done: - idev->buffers = RB_ROOT; mutex_init(&idev->buffer_lock); init_rwsem(&idev->lock); @@ -1300,15 +1304,7 @@ debugfs_done: idev->clients = RB_ROOT; ion_root_client = &idev->clients; mutex_init(&debugfs_mutex); - return idev; -} -EXPORT_SYMBOL(ion_device_create); - -void ion_device_destroy(struct ion_device *dev) -{ - misc_deregister(&dev->dev); - debugfs_remove_recursive(dev->debug_root); - /* XXX need to free the heaps and clients ? */ - kfree(dev); + internal_dev = idev; + return 0; } -EXPORT_SYMBOL(ion_device_destroy); +subsys_initcall(ion_device_create); diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h index fd494034c390..36a15870092a 100644 --- a/drivers/staging/android/ion/ion.h +++ b/drivers/staging/android/ion/ion.h @@ -280,24 +280,10 @@ bool ion_buffer_cached(struct ion_buffer *buffer); bool ion_buffer_fault_user_mappings(struct ion_buffer *buffer); /** - * ion_device_create - allocates and returns an ion device - * - * returns a valid device or -PTR_ERR - */ -struct ion_device *ion_device_create(void); - -/** - * ion_device_destroy - free and device and it's resource - * @dev: the device - */ -void ion_device_destroy(struct ion_device *dev); - -/** * ion_device_add_heap - adds a heap to the ion device - * @dev: the device * @heap: the heap to add */ -void ion_device_add_heap(struct ion_device *dev, struct ion_heap *heap); +void ion_device_add_heap(struct ion_heap *heap); /** * some helpers for common operations on buffers using the sg_table @@ -390,30 +376,6 @@ size_t ion_heap_freelist_size(struct ion_heap *heap); /** - * functions for creating and destroying the built in ion heaps. - * architectures can add their own custom architecture specific - * heaps as appropriate. - */ - - -struct ion_heap *ion_heap_create(struct ion_platform_heap *heap_data); -void ion_heap_destroy(struct ion_heap *heap); - -struct ion_heap *ion_system_heap_create(struct ion_platform_heap *unused); -void ion_system_heap_destroy(struct ion_heap *heap); -struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *heap); -void ion_system_contig_heap_destroy(struct ion_heap *heap); - -struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data); -void ion_carveout_heap_destroy(struct ion_heap *heap); - -struct ion_heap *ion_chunk_heap_create(struct ion_platform_heap *heap_data); -void ion_chunk_heap_destroy(struct ion_heap *heap); - -struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *data); -void ion_cma_heap_destroy(struct ion_heap *heap); - -/** * functions for creating and destroying a heap pool -- allows you * to keep a pool of pre allocated memory to use from your heap. Keeping * a pool of memory that is ready for dma, ie any cached mapping have been diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index 72872795c1e4..5fdc1f328f61 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -145,13 +145,3 @@ struct ion_heap *ion_carveout_heap_create(struct ion_platform_heap *heap_data) return &carveout_heap->heap; } - -void ion_carveout_heap_destroy(struct ion_heap *heap) -{ - struct ion_carveout_heap *carveout_heap = - container_of(heap, struct ion_carveout_heap, heap); - - gen_pool_destroy(carveout_heap->pool); - kfree(carveout_heap); - carveout_heap = NULL; -} diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c index 9210bfee241c..9c257c7a2ba0 100644 --- a/drivers/staging/android/ion/ion_chunk_heap.c +++ b/drivers/staging/android/ion/ion_chunk_heap.c @@ -160,12 +160,3 @@ error_gen_pool_create: return ERR_PTR(ret); } -void ion_chunk_heap_destroy(struct ion_heap *heap) -{ - struct ion_chunk_heap *chunk_heap = - container_of(heap, struct ion_chunk_heap, heap); - - gen_pool_destroy(chunk_heap->pool); - kfree(chunk_heap); - chunk_heap = NULL; -} diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index e67e78da40d9..dc2a9135c4d0 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -87,7 +87,7 @@ static struct ion_heap_ops ion_cma_ops = { .unmap_kernel = ion_heap_unmap_kernel, }; -struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *data) +static struct ion_heap *__ion_cma_heap_create(struct cma *cma) { struct ion_cma_heap *cma_heap; @@ -101,14 +101,28 @@ struct ion_heap *ion_cma_heap_create(struct ion_platform_heap *data) * get device from private heaps data, later it will be * used to make the link with reserved CMA memory */ - cma_heap->cma = data->priv; + cma_heap->cma = cma; cma_heap->heap.type = ION_HEAP_TYPE_DMA; return &cma_heap->heap; } -void ion_cma_heap_destroy(struct ion_heap *heap) +int __ion_add_cma_heaps(struct cma *cma, void *data) { - struct ion_cma_heap *cma_heap = to_cma_heap(heap); + struct ion_heap *heap; + + heap = __ion_cma_heap_create(cma); + if (IS_ERR(heap)) + return PTR_ERR(heap); - kfree(cma_heap); + heap->name = cma_get_name(cma); + + ion_device_add_heap(heap); + return 0; +} + +static int ion_add_cma_heaps(void) +{ + cma_for_each_area(__ion_add_cma_heaps, NULL); + return 0; } +device_initcall(ion_add_cma_heaps); diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index d8d057cab206..91faa7f035b9 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -314,74 +314,3 @@ void ion_heap_init_shrinker(struct ion_heap *heap) heap->shrinker.batch = 0; register_shrinker(&heap->shrinker); } - -struct ion_heap *ion_heap_create(struct ion_platform_heap *heap_data) -{ - struct ion_heap *heap = NULL; - - switch (heap_data->type) { - case ION_HEAP_TYPE_SYSTEM_CONTIG: - heap = ion_system_contig_heap_create(heap_data); - break; - case ION_HEAP_TYPE_SYSTEM: - heap = ion_system_heap_create(heap_data); - break; - case ION_HEAP_TYPE_CARVEOUT: - heap = ion_carveout_heap_create(heap_data); - break; - case ION_HEAP_TYPE_CHUNK: - heap = ion_chunk_heap_create(heap_data); - break; -#ifdef CONFIG_ION_CMA_HEAP - case ION_HEAP_TYPE_DMA: - heap = ion_cma_heap_create(heap_data); - break; -#endif - default: - pr_err("%s: Invalid heap type %d\n", __func__, - heap_data->type); - return ERR_PTR(-EINVAL); - } - - if (IS_ERR_OR_NULL(heap)) { - pr_err("%s: error creating heap %s type %d base %pa size %zu\n", - __func__, heap_data->name, heap_data->type, - &heap_data->base, heap_data->size); - return ERR_PTR(-EINVAL); - } - - heap->name = heap_data->name; - heap->id = heap_data->id; - return heap; -} -EXPORT_SYMBOL(ion_heap_create); - -void ion_heap_destroy(struct ion_heap *heap) -{ - if (!heap) - return; - - switch (heap->type) { - case ION_HEAP_TYPE_SYSTEM_CONTIG: - ion_system_contig_heap_destroy(heap); - break; - case ION_HEAP_TYPE_SYSTEM: - ion_system_heap_destroy(heap); - break; - case ION_HEAP_TYPE_CARVEOUT: - ion_carveout_heap_destroy(heap); - break; - case ION_HEAP_TYPE_CHUNK: - ion_chunk_heap_destroy(heap); - break; -#ifdef CONFIG_ION_CMA_HEAP - case ION_HEAP_TYPE_DMA: - ion_cma_heap_destroy(heap); - break; -#endif - default: - pr_err("%s: Invalid heap type %d\n", __func__, - heap->type); - } -} -EXPORT_SYMBOL(ion_heap_destroy); diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 4e6fe371bc0e..c50f2d9fc58c 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -320,7 +320,7 @@ err_create_pool: return -ENOMEM; } -struct ion_heap *ion_system_heap_create(struct ion_platform_heap *unused) +static struct ion_heap *__ion_system_heap_create(void) { struct ion_system_heap *heap; @@ -348,19 +348,19 @@ free_heap: return ERR_PTR(-ENOMEM); } -void ion_system_heap_destroy(struct ion_heap *heap) +static int ion_system_heap_create(void) { - struct ion_system_heap *sys_heap = container_of(heap, - struct ion_system_heap, - heap); - int i; + struct ion_heap *heap; - for (i = 0; i < NUM_ORDERS; i++) { - ion_page_pool_destroy(sys_heap->uncached_pools[i]); - ion_page_pool_destroy(sys_heap->cached_pools[i]); - } - kfree(sys_heap); + heap = __ion_system_heap_create(); + if (IS_ERR(heap)) + return PTR_ERR(heap); + heap->name = "ion_system_heap"; + + ion_device_add_heap(heap); + return 0; } +device_initcall(ion_system_heap_create); static int ion_system_contig_heap_allocate(struct ion_heap *heap, struct ion_buffer *buffer, @@ -429,7 +429,7 @@ static struct ion_heap_ops kmalloc_ops = { .map_user = ion_heap_map_user, }; -struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *unused) +static struct ion_heap *__ion_system_contig_heap_create(void) { struct ion_heap *heap; @@ -438,10 +438,20 @@ struct ion_heap *ion_system_contig_heap_create(struct ion_platform_heap *unused) return ERR_PTR(-ENOMEM); heap->ops = &kmalloc_ops; heap->type = ION_HEAP_TYPE_SYSTEM_CONTIG; + heap->name = "ion_system_contig_heap"; return heap; } -void ion_system_contig_heap_destroy(struct ion_heap *heap) +static int ion_system_contig_heap_create(void) { - kfree(heap); + struct ion_heap *heap; + + heap = __ion_system_contig_heap_create(); + if (IS_ERR(heap)) + return PTR_ERR(heap); + + ion_device_add_heap(heap); + return 0; } +device_initcall(ion_system_contig_heap_create); + |