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Commit 16c59ef3 authored by Alex Shi's avatar Alex Shi Committed by Chris Wilson
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drm/i915: Disable FBC on Ironlake to save 1W 



Frame buffer compression is broken on Ironlake due to buggy hardware.
Currently it is disabled through chicken bits, but it still consumes
over 1W more than if we simply never attempt to enable the FBC code
paths.

Signed-off-by: default avatarAlex Shi <alex.shi@intel.com>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
parent e7dbb2f2

drivers/gpu/drm/i915/i915_drv.c

+2 −1
Original line number Diff line number Diff line
@@ -150,7 +150,8 @@ static const struct intel_device_info intel_ironlake_d_info = { 


static const struct intel_device_info intel_ironlake_m_info = {

	.gen = 5, .is_mobile = 1,

	.need_gfx_hws = 1, .has_fbc = 1, .has_rc6 = 1, .has_hotplug = 1,

	.need_gfx_hws = 1, .has_rc6 = 1, .has_hotplug = 1,

	.has_fbc = 0, /* disabled due to buggy hardware */

	.has_bsd_ring = 1,

};