diff options
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.c | 26 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.c | 89 | ||||
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.h | 10 | ||||
| -rw-r--r-- | include/uapi/drm/exynos_drm.h | 22 |
5 files changed, 16 insertions, 132 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index d69bd9723805..513ba940bae0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -15,7 +15,6 @@ #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> -#include <linux/anon_inodes.h> #include <linux/component.h> #include <drm/exynos_drm.h> @@ -166,10 +165,6 @@ static int exynos_drm_unload(struct drm_device *dev) return 0; } -static const struct file_operations exynos_drm_gem_fops = { - .mmap = exynos_drm_gem_mmap_buffer, -}; - static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state) { struct drm_connector *connector; @@ -208,7 +203,6 @@ static int exynos_drm_resume(struct drm_device *dev) static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) { struct drm_exynos_file_private *file_priv; - struct file *anon_filp; int ret; file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); @@ -221,21 +215,8 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) if (ret) goto err_file_priv_free; - anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops, - NULL, 0); - if (IS_ERR(anon_filp)) { - ret = PTR_ERR(anon_filp); - goto err_subdrv_close; - } - - anon_filp->f_mode = FMODE_READ | FMODE_WRITE; - file_priv->anon_filp = anon_filp; - return ret; -err_subdrv_close: - exynos_drm_subdrv_close(dev, file); - err_file_priv_free: kfree(file_priv); file->driver_priv = NULL; @@ -251,7 +232,6 @@ static void exynos_drm_preclose(struct drm_device *dev, static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) { struct exynos_drm_private *private = dev->dev_private; - struct drm_exynos_file_private *file_priv; struct drm_pending_vblank_event *v, *vt; struct drm_pending_event *e, *et; unsigned long flags; @@ -277,10 +257,6 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) } spin_unlock_irqrestore(&dev->event_lock, flags); - file_priv = file->driver_priv; - if (file_priv->anon_filp) - fput(file_priv->anon_filp); - kfree(file->driver_priv); file->driver_priv = NULL; } @@ -299,8 +275,6 @@ static const struct vm_operations_struct exynos_drm_gem_vm_ops = { static const struct drm_ioctl_desc exynos_ioctls[] = { DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, DRM_UNLOCKED | DRM_AUTH), - DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP, - exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH), DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 69a6fa397d75..d22e640f59a0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -240,7 +240,6 @@ struct exynos_drm_g2d_private { struct drm_exynos_file_private { struct exynos_drm_g2d_private *g2d_priv; struct device *ipp_dev; - struct file *anon_filp; }; /* diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 2f3665de2d60..0d5b9698d384 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -318,23 +318,16 @@ void exynos_drm_gem_put_dma_addr(struct drm_device *dev, drm_gem_object_unreference_unlocked(obj); } -int exynos_drm_gem_mmap_buffer(struct file *filp, +int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem_obj *exynos_gem_obj, struct vm_area_struct *vma) { - struct drm_gem_object *obj = filp->private_data; - struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj); - struct drm_device *drm_dev = obj->dev; + struct drm_device *drm_dev = exynos_gem_obj->base.dev; struct exynos_drm_gem_buf *buffer; unsigned long vm_size; int ret; - WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); - - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; - vma->vm_private_data = obj; - vma->vm_ops = drm_dev->driver->gem_vm_ops; - - update_vm_cache_attr(exynos_gem_obj, vma); + vma->vm_flags &= ~VM_PFNMAP; + vma->vm_pgoff = 0; vm_size = vma->vm_end - vma->vm_start; @@ -356,60 +349,6 @@ int exynos_drm_gem_mmap_buffer(struct file *filp, return ret; } - /* - * take a reference to this mapping of the object. And this reference - * is unreferenced by the corresponding vm_close call. - */ - drm_gem_object_reference(obj); - - drm_vm_open_locked(drm_dev, vma); - - return 0; -} - -int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_exynos_file_private *exynos_file_priv; - struct drm_exynos_gem_mmap *args = data; - struct drm_gem_object *obj; - struct file *anon_filp; - unsigned long addr; - - if (!(dev->driver->driver_features & DRIVER_GEM)) { - DRM_ERROR("does not support GEM.\n"); - return -ENODEV; - } - - mutex_lock(&dev->struct_mutex); - - obj = drm_gem_object_lookup(dev, file_priv, args->handle); - if (!obj) { - DRM_ERROR("failed to lookup gem object.\n"); - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - exynos_file_priv = file_priv->driver_priv; - anon_filp = exynos_file_priv->anon_filp; - anon_filp->private_data = obj; - - addr = vm_mmap(anon_filp, 0, args->size, PROT_READ | PROT_WRITE, - MAP_SHARED, 0); - - drm_gem_object_unreference(obj); - - if (IS_ERR_VALUE(addr)) { - mutex_unlock(&dev->struct_mutex); - return (int)addr; - } - - mutex_unlock(&dev->struct_mutex); - - args->mapped = addr; - - DRM_DEBUG_KMS("mapped = 0x%lx\n", (unsigned long)args->mapped); - return 0; } @@ -693,16 +632,20 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) exynos_gem_obj = to_exynos_gem_obj(obj); ret = check_gem_flags(exynos_gem_obj->flags); - if (ret) { - drm_gem_vm_close(vma); - drm_gem_free_mmap_offset(obj); - return ret; - } - - vma->vm_flags &= ~VM_PFNMAP; - vma->vm_flags |= VM_MIXEDMAP; + if (ret) + goto err_close_vm; update_vm_cache_attr(exynos_gem_obj, vma); + ret = exynos_drm_gem_mmap_buffer(exynos_gem_obj, vma); + if (ret) + goto err_close_vm; + + return ret; + +err_close_vm: + drm_gem_vm_close(vma); + drm_gem_free_mmap_offset(obj); + return ret; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h index 8e460940d118..09d021bbccf5 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.h +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h @@ -111,16 +111,6 @@ void exynos_drm_gem_put_dma_addr(struct drm_device *dev, unsigned int gem_handle, struct drm_file *filp); -/* - * mmap the physically continuous memory that a gem object contains - * to user space. - */ -int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); - -int exynos_drm_gem_mmap_buffer(struct file *filp, - struct vm_area_struct *vma); - /* map user space allocated by malloc to pages. */ int exynos_drm_gem_userptr_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h index 67a751c74a77..5575ed1598bd 100644 --- a/include/uapi/drm/exynos_drm.h +++ b/include/uapi/drm/exynos_drm.h @@ -33,24 +33,6 @@ struct drm_exynos_gem_create { }; /** - * A structure for mapping buffer. - * - * @handle: a handle to gem object created. - * @pad: just padding to be 64-bit aligned. - * @size: memory size to be mapped. - * @mapped: having user virtual address mmaped. - * - this variable would be filled by exynos gem module - * of kernel side with user virtual address which is allocated - * by do_mmap(). - */ -struct drm_exynos_gem_mmap { - unsigned int handle; - unsigned int pad; - uint64_t size; - uint64_t mapped; -}; - -/** * A structure to gem information. * * @handle: a handle to gem object created. @@ -302,7 +284,6 @@ struct drm_exynos_ipp_cmd_ctrl { }; #define DRM_EXYNOS_GEM_CREATE 0x00 -#define DRM_EXYNOS_GEM_MMAP 0x02 /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */ #define DRM_EXYNOS_GEM_GET 0x04 #define DRM_EXYNOS_VIDI_CONNECTION 0x07 @@ -321,9 +302,6 @@ struct drm_exynos_ipp_cmd_ctrl { #define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) -#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \ - DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap) - #define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \ DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info) |