From 3417f33e762bf7d4277031a655e3ad07e73ce0be Mon Sep 17 00:00:00 2001 From: George Sapountzis Date: Tue, 24 Oct 2006 12:03:04 -0700 Subject: drm: add flag for mapping PCI DMA buffers read-only. Add DRM_PCI_BUFFER_RO flag for mapping PCI DMA buffer read-only. An additional flag is needed, since PCI DMA buffers do not have an associated map. Signed-off-by: Dave Airlie --- drivers/char/drm/drm.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/char/drm/drm.h') diff --git a/drivers/char/drm/drm.h b/drivers/char/drm/drm.h index 3f28a1551621..8db9041e306c 100644 --- a/drivers/char/drm/drm.h +++ b/drivers/char/drm/drm.h @@ -356,7 +356,8 @@ typedef struct drm_buf_desc { _DRM_PAGE_ALIGN = 0x01, /**< Align on page boundaries for DMA */ _DRM_AGP_BUFFER = 0x02, /**< Buffer is in AGP space */ _DRM_SG_BUFFER = 0x04, /**< Scatter/gather memory buffer */ - _DRM_FB_BUFFER = 0x08 /**< Buffer is in frame buffer */ + _DRM_FB_BUFFER = 0x08, /**< Buffer is in frame buffer */ + _DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */ } flags; unsigned long agp_start; /**< * Start address of where the AGP buffers are -- cgit v1.2.3