Commit 35cbd91e authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Matthew Auld
Browse files

drm/i915: Disable mmap ioctl for gen12+ 



The platform should exclusively use mmap_offset, one less path to worry
about for discrete.

Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210601074654.3103-14-thomas.hellstrom@linux.intel.com
parent 62445a97

drivers/gpu/drm/i915/gem/i915_gem_mman.c

+7 −0
Original line number Diff line number Diff line
@@ -56,10 +56,17 @@ int 
i915_gem_mmap_ioctl(struct drm_device *dev, void *data,

		    struct drm_file *file)

{

	struct drm_i915_private *i915 = to_i915(dev);

	struct drm_i915_gem_mmap *args = data;

	struct drm_i915_gem_object *obj;

	unsigned long addr;



	/* mmap ioctl is disallowed for all platforms after TGL-LP.  This also

	 * covers all platforms with local memory.

	 */

	if (INTEL_GEN(i915) >= 12 && !IS_TIGERLAKE(i915))

		return -EOPNOTSUPP;



	if (args->flags & ~(I915_MMAP_WC))

		return -EINVAL;