[Intel-gfx] [PATCH 2/2] drm/i915: Add simulator's host bridge

[Ben Widawsky]

Add the host bridge ID used by the simulator. This was added in a
previous patch for the agp layer, but wasn't preserved here.  It also
gives us an opportunity to let the rest of the driver know we're running
as the simulator for various workarounds.

We must always do this early as it's the only way we have to detect the
simulator.

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_drv.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 72e86a7..ebaaea1 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -387,6 +387,7 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 #define INTEL_PCH_CPT_DEVICE_ID_TYPE	0x1c00
 #define INTEL_PCH_PPT_DEVICE_ID_TYPE	0x1e00
 #define INTEL_PCH_LPT_DEVICE_ID_TYPE	0x8c00
+#define INTEL_PCH_HAS_DEVICE_ID_TYPE	0x7000
 
 void intel_detect_pch(struct drm_device *dev)
 {
@@ -422,6 +423,12 @@ void intel_detect_pch(struct drm_device *dev)
 				dev_priv->pch_type = PCH_LPT;
 				dev_priv->num_pch_pll = 0;
 				DRM_DEBUG_KMS("Found LynxPoint PCH\n");
+			} else if (id == INTEL_PCH_HAS_DEVICE_ID_TYPE) {
+				/* XXX it is important to do this early */
+				dev_priv->is_simulator = true;
+				dev_priv->pch_type = PCH_CPT;
+				dev_priv->num_pch_pll = 2;
+				DRM_DEBUG_KMS("Found HAS PCH\n");
 			}
 			BUG_ON(dev_priv->num_pch_pll > I915_NUM_PLLS);
 		}
-- 
1.7.11.2