diff options
Diffstat (limited to 'sys/dev/drm/drm_vm.c')
| -rw-r--r-- | sys/dev/drm/drm_vm.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/dev/drm/drm_vm.c b/sys/dev/drm/drm_vm.c index e01257a3..c602eec 100644 --- a/sys/dev/drm/drm_vm.c +++ b/sys/dev/drm/drm_vm.c @@ -24,6 +24,10 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +/** @file drm_vm.c + * Support code for mmaping of DRM maps. + */ + #include "dev/drm/drmP.h" #include "dev/drm/drm.h" @@ -36,7 +40,7 @@ int drm_mmap(dev_t kdev, vm_offset_t offset, int prot) paddr_t drm_mmap(dev_t kdev, off_t offset, int prot) #endif { - DRM_DEVICE; + struct drm_device *dev = drm_get_device_from_kdev(kdev); drm_local_map_t *map; drm_file_t *priv; drm_map_type_t type; @@ -55,7 +59,7 @@ paddr_t drm_mmap(dev_t kdev, off_t offset, int prot) } if (!priv->authenticated) - return DRM_ERR(EACCES); + return EACCES; if (dev->dma && offset >= 0 && offset < ptoa(dev->dma->page_count)) { drm_device_dma_t *dma = dev->dma; @@ -66,9 +70,9 @@ paddr_t drm_mmap(dev_t kdev, off_t offset, int prot) unsigned long page = offset >> PAGE_SHIFT; unsigned long phys = dma->pagelist[page]; + DRM_SPINUNLOCK(&dev->dma_lock); #if defined(__FreeBSD__) && __FreeBSD_version >= 500102 *paddr = phys; - DRM_SPINUNLOCK(&dev->dma_lock); return 0; #else return atop(phys); @@ -77,7 +81,6 @@ paddr_t drm_mmap(dev_t kdev, off_t offset, int prot) DRM_SPINUNLOCK(&dev->dma_lock); return -1; } - DRM_SPINUNLOCK(&dev->dma_lock); } /* A sequential search of a linked list is |
