diff options
Diffstat (limited to 'drivers/gpu/drm/exynos_tmp/exynos_drm_ump.c')
| -rw-r--r-- | drivers/gpu/drm/exynos_tmp/exynos_drm_ump.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/drivers/gpu/drm/exynos_tmp/exynos_drm_ump.c b/drivers/gpu/drm/exynos_tmp/exynos_drm_ump.c deleted file mode 100644 index fd9ba2a..0000000 --- a/drivers/gpu/drm/exynos_tmp/exynos_drm_ump.c +++ /dev/null @@ -1,151 +0,0 @@ -/* exynos_drm_ump.c - * - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * Author: Inki Dae <inki.dae@samsung.com> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include "drmP.h" -#include "drm.h" - -#include <drm/exynos_drm.h> - -#include "exynos_drm_gem.h" -#include "ump_kernel_interface_ref_drv.h" - -static unsigned int exynos_drm_ump_get_handle(unsigned int id) -{ - return (unsigned int)ump_dd_handle_get((ump_secure_id)id); -} - -static int exynos_drm_ump_add_buffer(void *obj, - unsigned int *handle, unsigned int *id) -{ - struct exynos_drm_gem_obj *gem_obj = obj; - struct exynos_drm_gem_buf *buf = gem_obj->buffer; - ump_dd_physical_block *ump_mem_desc; - unsigned int nblocks; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (IS_NONCONTIG_BUFFER(gem_obj->flags)) { - unsigned int i = 0; - - if (!buf->pages) - return -EFAULT; - - nblocks = gem_obj->size >> PAGE_SHIFT; - ump_mem_desc = kzalloc(sizeof(*ump_mem_desc) * nblocks, - GFP_KERNEL); - if (!ump_mem_desc) { - DRM_ERROR("failed to alloc ump_mem_desc.\n"); - return -ENOMEM; - } - - /* - * if EXYNOS_BO_NONCONTIG type, gem object would already - * have pages allocated by gem creation so contain page - * frame numbers of all pages into ump descriptors. - */ - while (i < nblocks) { - ump_mem_desc[i].addr = - page_to_pfn(buf->pages[i]) << PAGE_SHIFT; - ump_mem_desc[i].size = PAGE_SIZE; - i++; - } - } else { - nblocks = 1; - - ump_mem_desc = kzalloc(sizeof(*ump_mem_desc), GFP_KERNEL); - if (!ump_mem_desc) { - DRM_ERROR("failed to alloc ump_mem_desc.\n"); - return -ENOMEM; - } - - /* - * it EXYNOS_DRM_GEM_PC type, gem would have just one - * physically continuous buffer so let a ump descriptor - * have one buffer address. - */ - ump_mem_desc[0].addr = (unsigned long)buf->dma_addr; - ump_mem_desc[0].size = buf->size; - } - - /* - * register memory information to ump descriptor table through - * the ump descriptor data and then return ump handle to it so that - * user can access the memory region through it. - */ - *handle = (unsigned int) - ump_dd_handle_create_from_phys_blocks(ump_mem_desc, nblocks); - if (!(*handle)) { - DRM_ERROR("failed to create ump handle.\n"); - kfree(ump_mem_desc); - return -EINVAL; - } - - *id = ump_dd_secure_id_get((ump_dd_handle)*handle); - - kfree(ump_mem_desc); - - DRM_DEBUG_KMS("ump handle : 0x%x, secure id = %d\n", *handle, *id); - DRM_INFO("ump handle : 0x%x, secure id = %d\n", *handle, *id); - - return 0; -} - -static void exynos_drm_ump_release_buffer(unsigned int handle) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (!handle) { - DRM_DEBUG_KMS("invalid ump handle.\n"); - return; - } - - ump_dd_reference_release((ump_dd_handle)handle); -} - -static struct exynos_drm_private_cb ump_callback = { - .get_handle = exynos_drm_ump_get_handle, - .add_buffer = exynos_drm_ump_add_buffer, - .release_buffer = exynos_drm_ump_release_buffer, -}; - -static int exynos_drm_ump_init(void) -{ - DRM_DEBUG_KMS("%s\n", __FILE__); - - exynos_drm_priv_cb_register(&ump_callback); - - return 0; -} - -static void exynos_drm_ump_exit(void) -{ -} - -subsys_initcall(exynos_drm_ump_init); -module_exit(exynos_drm_ump_exit); - -MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); -MODULE_DESCRIPTION("Samsung SoC DRM UMP Backend Module"); -MODULE_LICENSE("GPL"); |