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Commit 1875fe7b authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Downgrade misleading "Memory usable" message 



It never meant what it said, as it was always the total size of the
Global GTT and not a limit upon memory usage. Originally it served as a
quick guide to the largest batch that could be submitted by userspace,
an approximation to its maximum RSS, but was phrased badly. Today with
the 48b ppgtt, it is even more meaningless. Replace with a more specific
debug message; those wanting to know how much "video ram" they have
should consult the userspace libraries for the relevant approximation.

v2: Rebase

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171212113532.22574-1-chris@chris-wilson.co.uk


Reviewed-by: default avatarMatthew Auld <matthew.auld@intel.com>
Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
parent 3ef98f50

drivers/gpu/drm/i915/i915_gem_gtt.c

+2 −3
Original line number Diff line number Diff line
@@ -3483,10 +3483,9 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv) 
	}



	/* GMADR is the PCI mmio aperture into the global GTT. */

	DRM_INFO("Memory usable by graphics device = %lluM\n",

		 ggtt->base.total >> 20);

	DRM_DEBUG_DRIVER("GGTT size = %lluM\n", ggtt->base.total >> 20);

	DRM_DEBUG_DRIVER("GMADR size = %lluM\n", (u64)ggtt->mappable_end >> 20);

	DRM_DEBUG_DRIVER("GTT stolen size = %lluM\n",

	DRM_DEBUG_DRIVER("DSM size = %lluM\n",

			 (u64)resource_size(&intel_graphics_stolen_res) >> 20);

	if (intel_vtd_active())

		DRM_INFO("VT-d active for gfx access\n");