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drm/i915:Initialize the second BSD ring on BDW GT3 machine

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Based on the hardware spec, the BDW GT3 machine has two independent
BSD ring that can be used to dispatch the video commands.
So just initialize it.

V3->V4: Follow Imre's comment to do some minor updates. For example:
more comments are added to describe the semaphore between ring.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
[danvet: Fix up checkpatch error.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Zhao Yakui
2014-04-17 10:37:37 +08:00
committed by Daniel Vetter
parent b1a93306ed
commit 845f74a701
7 changed files with 95 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/i915/i915_drv.c
+2 -2
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@@ -282,7 +282,7 @@ static const struct intel_device_info intel_broadwell_m_info = {
static const struct intel_device_info intel_broadwell_gt3d_info = {
.gen = 8, .num_pipes = 3,
.need_gfx_hws = 1, .has_hotplug = 1,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
.has_llc = 1,
.has_ddi = 1,
.has_fbc = 1,
@@ -292,7 +292,7 @@ static const struct intel_device_info intel_broadwell_gt3d_info = {
static const struct intel_device_info intel_broadwell_gt3m_info = {
.gen = 8, .is_mobile = 1, .num_pipes = 3,
.need_gfx_hws = 1, .has_hotplug = 1,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING,
.ring_mask = RENDER_RING | BSD_RING | BLT_RING | VEBOX_RING | BSD2_RING,
.has_llc = 1,
.has_ddi = 1,
.has_fbc = 1,