diff options
Diffstat (limited to 'drivers/gpu/drm/drm_vm.c')
| -rw-r--r-- | drivers/gpu/drm/drm_vm.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index 961ee08927fe..db7bd292410b 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -33,7 +33,7 @@ * OTHER DEALINGS IN THE SOFTWARE. */ -#include "drmP.h" +#include <drm/drmP.h> #include <linux/export.h> #if defined(__ia64__) #include <linux/efi.h> @@ -62,7 +62,7 @@ static pgprot_t drm_io_prot(uint32_t map_type, struct vm_area_struct *vma) tmp = pgprot_writecombine(tmp); else tmp = pgprot_noncached(tmp); -#elif defined(__sparc__) || defined(__arm__) +#elif defined(__sparc__) || defined(__arm__) || defined(__mips__) tmp = pgprot_noncached(tmp); #endif return tmp; @@ -514,8 +514,7 @@ static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) vma->vm_ops = &drm_vm_dma_ops; - vma->vm_flags |= VM_RESERVED; /* Don't swap */ - vma->vm_flags |= VM_DONTEXPAND; + vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; drm_vm_open_locked(dev, vma); return 0; @@ -619,20 +618,11 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) offset = drm_core_get_reg_ofs(dev); vma->vm_flags |= VM_IO; /* not in core dump */ vma->vm_page_prot = drm_io_prot(map->type, vma); -#if !defined(__arm__) if (io_remap_pfn_range(vma, vma->vm_start, (map->offset + offset) >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot)) return -EAGAIN; -#else - if (remap_pfn_range(vma, vma->vm_start, - (map->offset + offset) >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot)) - return -EAGAIN; -#endif - DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx," " offset = 0x%llx\n", map->type, @@ -652,21 +642,16 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) case _DRM_SHM: vma->vm_ops = &drm_vm_shm_ops; vma->vm_private_data = (void *)map; - /* Don't let this area swap. Change when - DRM_KERNEL advisory is supported. */ - vma->vm_flags |= VM_RESERVED; break; case _DRM_SCATTER_GATHER: vma->vm_ops = &drm_vm_sg_ops; vma->vm_private_data = (void *)map; - vma->vm_flags |= VM_RESERVED; vma->vm_page_prot = drm_dma_prot(map->type, vma); break; default: return -EINVAL; /* This should never happen. */ } - vma->vm_flags |= VM_RESERVED; /* Don't swap */ - vma->vm_flags |= VM_DONTEXPAND; + vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP; drm_vm_open_locked(dev, vma); return 0; |