From 70f2f5c70440feff01d9ba7c8b4432eb72bd69eb Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 24 Oct 2014 12:11:11 +0100 Subject: drm/i915: Report the actual swizzling back to userspace Userspace cares about whether or not swizzling depends on the page address for its direct access into bound objects. Extend the get_tiling ioctl to report the physical swizzling value in addition to the logical swizzling value so that userspace can accurately determine when it is possible for manual detiling. Signed-off-by: Chris Wilson Cc: Akash Goel Cc: Daniel Vetter Testcase: igt/gem_tiled_wc Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem_tiling.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index d1e7a3e088aa..749ab485569e 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -458,6 +458,7 @@ i915_gem_get_tiling(struct drm_device *dev, void *data, } /* Hide bit 17 from the user -- see comment in i915_gem_set_tiling */ + args->phys_swizzle_mode = args->swizzle_mode; if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_17) args->swizzle_mode = I915_BIT_6_SWIZZLE_9; if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_10_17) -- cgit v1.2.3