diff options
| author | Dave Airlie <airlied@redhat.com> | 2008-02-20 13:27:10 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2008-03-06 05:31:50 +1000 |
| commit | 180c9188f4cb7163f1e3e7d5098eaabf29a98540 (patch) | |
| tree | 71a6af7b47fa72f354d46a0340463265ec350dbd /linux-core | |
| parent | 12574590cdf7871755d1939463ca6898251fd0d1 (diff) | |
drm/ttm: add ioctl to get back memory managed area sized
taken from modesetting branch but could be useful outside it.
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/drm_bo.c | 37 | ||||
| -rw-r--r-- | linux-core/drm_drv.c | 2 | ||||
| -rw-r--r-- | linux-core/drm_objects.h | 2 |
3 files changed, 41 insertions, 0 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 95802fe2..b67946eb 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -2283,6 +2283,7 @@ int drm_bo_init_mm(struct drm_device *dev, } man->has_type = 1; man->use_type = 1; + man->size = p_size; INIT_LIST_HEAD(&man->lru); INIT_LIST_HEAD(&man->pinned); @@ -2553,6 +2554,42 @@ int drm_mm_unlock_ioctl(struct drm_device *dev, return 0; } +int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) +{ + struct drm_mm_info_arg *arg = data; + struct drm_buffer_manager *bm = &dev->bm; + struct drm_bo_driver *driver = dev->driver->bo_driver; + struct drm_mem_type_manager *man; + int ret = 0; + int mem_type = arg->mem_type; + + if (!driver) { + DRM_ERROR("Buffer objects are not supported by this driver\n"); + return -EINVAL; + } + + if (mem_type >= DRM_BO_MEM_TYPES) { + DRM_ERROR("Illegal memory type %d\n", arg->mem_type); + return -EINVAL; + } + + mutex_lock(&dev->struct_mutex); + if (!bm->initialized) { + DRM_ERROR("DRM memory manager was not initialized\n"); + ret = -EINVAL; + goto out; + } + + + man = &bm->man[arg->mem_type]; + + arg->p_size = man->size; + +out: + mutex_unlock(&dev->struct_mutex); + + return ret; +} /* * buffer object vm functions. */ diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c index 1daa8653..b8b8333e 100644 --- a/linux-core/drm_drv.c +++ b/linux-core/drm_drv.c @@ -148,6 +148,8 @@ static struct drm_ioctl_desc drm_ioctls[] = { DRM_IOCTL_DEF(DRM_IOCTL_BO_INFO, drm_bo_info_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_BO_WAIT_IDLE, drm_bo_wait_idle_ioctl, DRM_AUTH), DRM_IOCTL_DEF(DRM_IOCTL_BO_VERSION, drm_bo_version_ioctl, 0), + + DRM_IOCTL_DEF(DRM_IOCTL_MM_INFO, drm_mm_info_ioctl, 0), }; #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h index fd32f0f4..ae0725c1 100644 --- a/linux-core/drm_objects.h +++ b/linux-core/drm_objects.h @@ -525,6 +525,7 @@ struct drm_mem_type_manager { unsigned long io_offset; unsigned long io_size; void *io_addr; + uint64_t size; /* size of managed area for reporting to userspace */ }; struct drm_bo_lock { @@ -651,6 +652,7 @@ extern int drm_mm_init_ioctl(struct drm_device *dev, void *data, struct drm_file extern int drm_mm_takedown_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mm_lock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_mm_unlock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_bo_version_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_bo_driver_finish(struct drm_device *dev); extern int drm_bo_driver_init(struct drm_device *dev); |