Commit d3f3baa3 authored by Thomas Hellström's avatar Thomas Hellström Committed by Matthew Auld

drm/i915: Reinstate the mmap ioctl for some platforms

Reinstate the mmap ioctl for all current integrated platforms.
The intention was really to have it disabled for discrete graphics
where we enforce a single mmap mode.

This was reported to break ADL-P with the media stack, which was not the
intention. Although longer term we do still plan to sunset this ioctl
even for integrated, in favour of using mmap_offset instead.

Fixes: 35cbd91e ("drm/i915: Disable mmap ioctl for gen12+")
Signed-off-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: default avatarMatthew Auld <matthew.auld@intel.com>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210624112914.311984-1-thomas.hellstrom@linux.intel.com
parent 32b7cf51
......@@ -62,10 +62,11 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *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.
/*
* mmap ioctl is disallowed for all discrete platforms,
* and for all platforms with GRAPHICS_VER > 12.
*/
if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915))
if (IS_DGFX(i915) || GRAPHICS_VER(i915) > 12)
return -EOPNOTSUPP;
if (args->flags & ~(I915_MMAP_WC))
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment