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| author | Robert Beckett <robert.beckett@intel.com> | 2015-08-28 13:10:22 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-09-30 10:14:21 +0200 |
| commit | 30c964a6cb7bbade28eabcbc3fce4b01be8f1a39 (patch) | |
| tree | ce623266de1474c26c858d028aae8c5e2e0c7380 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 44cc6c08da0b6c8321c6740bbb6a0c6feb45b2c2 (diff) | |
| download | lwn-30c964a6cb7bbade28eabcbc3fce4b01be8f1a39.tar.gz lwn-30c964a6cb7bbade28eabcbc3fce4b01be8f1a39.zip | |
drm/i915: Detect virtual south bridge
Virtualized systems often use a virtual P2X4 south bridge.
Detect this in intel_detect_pch and make a best guess as to which PCH
we should be using.
This was seen on vmware esxi hypervisor. When passing the graphics device
through to a guest, it can not pass through the PCH. Instead it simulates
a P2X4 southbridge.
Signed-off-by: Robert Beckett <robert.beckett@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 7d83f6741e33..04d710ff4913 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2608,6 +2608,7 @@ struct drm_i915_cmd_table { #define INTEL_PCH_LPT_LP_DEVICE_ID_TYPE 0x9c00 #define INTEL_PCH_SPT_DEVICE_ID_TYPE 0xA100 #define INTEL_PCH_SPT_LP_DEVICE_ID_TYPE 0x9D00 +#define INTEL_PCH_P2X_DEVICE_ID_TYPE 0x7100 #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type) #define HAS_PCH_SPT(dev) (INTEL_PCH_TYPE(dev) == PCH_SPT) |