| /* |
| * Copyright (C) 2010, 2012-2013, 2015 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the GNU General Public License version 2 |
| * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. |
| * |
| * A copy of the licence is included with the program, and can also be obtained from Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "drmP.h" |
| #include "mali_drm.h" |
| #include "mali_drv.h" |
| |
| #define VIDEO_TYPE 0 |
| #define MEM_TYPE 1 |
| |
| #define MALI_MM_ALIGN_SHIFT 4 |
| #define MALI_MM_ALIGN_MASK ( (1 << MALI_MM_ALIGN_SHIFT) - 1) |
| |
| |
| static void *mali_sman_mm_allocate(void *private, unsigned long size, unsigned alignment) |
| { |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| return NULL; |
| } |
| |
| static void mali_sman_mm_free(void *private, void *ref) |
| { |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| } |
| |
| static void mali_sman_mm_destroy(void *private) |
| { |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| } |
| |
| static unsigned long mali_sman_mm_offset(void *private, void *ref) |
| { |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| return ~((unsigned long)ref); |
| } |
| |
| static int mali_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| drm_mali_fb_t *fb = data; |
| int ret; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| mutex_lock(&dev->struct_mutex); |
| { |
| struct drm_sman_mm sman_mm; |
| sman_mm.private = (void *)0xFFFFFFFF; |
| sman_mm.allocate = mali_sman_mm_allocate; |
| sman_mm.free = mali_sman_mm_free; |
| sman_mm.destroy = mali_sman_mm_destroy; |
| sman_mm.offset = mali_sman_mm_offset; |
| ret = drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm); |
| } |
| |
| if (ret) |
| { |
| DRM_ERROR("VRAM memory manager initialisation error\n"); |
| mutex_unlock(&dev->struct_mutex); |
| return ret; |
| } |
| |
| dev_priv->vram_initialized = 1; |
| dev_priv->vram_offset = fb->offset; |
| |
| mutex_unlock(&dev->struct_mutex); |
| DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size); |
| |
| return 0; |
| } |
| |
| static int mali_drm_alloc(struct drm_device *dev, struct drm_file *file_priv, void *data, int pool) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| drm_mali_mem_t *mem = data; |
| int retval = 0; |
| struct drm_memblock_item *item; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| if (0 == dev_priv->vram_initialized) |
| { |
| DRM_ERROR("Attempt to allocate from uninitialized memory manager.\n"); |
| mutex_unlock(&dev->struct_mutex); |
| return -EINVAL; |
| } |
| |
| mem->size = (mem->size + MALI_MM_ALIGN_MASK) >> MALI_MM_ALIGN_SHIFT; |
| item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0, |
| (unsigned long)file_priv); |
| |
| mutex_unlock(&dev->struct_mutex); |
| |
| if (item) |
| { |
| mem->offset = dev_priv->vram_offset + (item->mm->offset(item->mm, item->mm_info) << MALI_MM_ALIGN_SHIFT); |
| mem->free = item->user_hash.key; |
| mem->size = mem->size << MALI_MM_ALIGN_SHIFT; |
| } |
| else |
| { |
| mem->offset = 0; |
| mem->size = 0; |
| mem->free = 0; |
| retval = -ENOMEM; |
| } |
| |
| DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem->size, mem->offset); |
| |
| return retval; |
| } |
| |
| static int mali_drm_free(struct drm_device *dev, void *data, struct drm_file *file_priv) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| drm_mali_mem_t *mem = data; |
| int ret; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| mutex_lock(&dev->struct_mutex); |
| ret = drm_sman_free_key(&dev_priv->sman, mem->free); |
| mutex_unlock(&dev->struct_mutex); |
| DRM_DEBUG("free = 0x%lx\n", mem->free); |
| |
| return ret; |
| } |
| |
| static int mali_fb_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv) |
| { |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| return mali_drm_alloc(dev, file_priv, data, VIDEO_TYPE); |
| } |
| |
| static int mali_ioctl_mem_init(struct drm_device *dev, void *data, struct drm_file *file_priv) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| drm_mali_mem_t *mem = data; |
| int ret; |
| dev_priv = dev->dev_private; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| mutex_lock(&dev->struct_mutex); |
| ret = drm_sman_set_range(&dev_priv->sman, MEM_TYPE, 0, mem->size >> MALI_MM_ALIGN_SHIFT); |
| |
| if (ret) |
| { |
| DRM_ERROR("MEM memory manager initialisation error\n"); |
| mutex_unlock(&dev->struct_mutex); |
| return ret; |
| } |
| |
| mutex_unlock(&dev->struct_mutex); |
| |
| return 0; |
| } |
| |
| static int mali_ioctl_mem_alloc(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| return mali_drm_alloc(dev, file_priv, data, MEM_TYPE); |
| } |
| |
| static drm_local_map_t *mem_reg_init(struct drm_device *dev) |
| { |
| struct drm_map_list *entry; |
| drm_local_map_t *map; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| list_for_each_entry(entry, &dev->maplist, head) |
| { |
| map = entry->map; |
| |
| if (!map) |
| { |
| continue; |
| } |
| |
| if (map->type == _DRM_REGISTERS) |
| { |
| return map; |
| } |
| } |
| return NULL; |
| } |
| |
| int mali_idle(struct drm_device *dev) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| uint32_t idle_reg; |
| unsigned long end; |
| int i; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| if (dev_priv->idle_fault) |
| { |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| |
| void mali_lastclose(struct drm_device *dev) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| if (!dev_priv) |
| { |
| return; |
| } |
| |
| mutex_lock(&dev->struct_mutex); |
| drm_sman_cleanup(&dev_priv->sman); |
| dev_priv->vram_initialized = 0; |
| dev_priv->mmio = NULL; |
| mutex_unlock(&dev->struct_mutex); |
| } |
| |
| void mali_reclaim_buffers_locked(struct drm_device *dev, struct drm_file *file_priv) |
| { |
| drm_mali_private_t *dev_priv = dev->dev_private; |
| printk(KERN_ERR "DRM: %s\n", __func__); |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) |
| { |
| mutex_unlock(&dev->struct_mutex); |
| return; |
| } |
| |
| if (dev->driver->dma_quiescent) |
| { |
| dev->driver->dma_quiescent(dev); |
| } |
| |
| drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv); |
| mutex_unlock(&dev->struct_mutex); |
| return; |
| } |
| |
| struct drm_ioctl_desc mali_ioctls[] = |
| { |
| DRM_IOCTL_DEF(DRM_MALI_FB_ALLOC, mali_fb_alloc, DRM_AUTH), |
| DRM_IOCTL_DEF(DRM_MALI_FB_FREE, mali_drm_free, DRM_AUTH), |
| DRM_IOCTL_DEF(DRM_MALI_MEM_INIT, mali_ioctl_mem_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), |
| DRM_IOCTL_DEF(DRM_MALI_MEM_ALLOC, mali_ioctl_mem_alloc, DRM_AUTH), |
| DRM_IOCTL_DEF(DRM_MALI_MEM_FREE, mali_drm_free, DRM_AUTH), |
| DRM_IOCTL_DEF(DRM_MALI_FB_INIT, mali_fb_init, DRM_AUTH | DRM_MASTER | DRM_ROOT_ONLY), |
| }; |
| |
| int mali_max_ioctl = DRM_ARRAY_SIZE(mali_ioctls); |