This patch is require for running i915 in a VM in universal passthrough (UPT) mode on some systems. UPT mode allows IGD to be passed through to a VM without hypervisor quirks.
Reviewed-by: Allen Kay <allen.m....@intel.com> > -----Original Message----- > From: Jesse Barnes [mailto:jbar...@virtuousgeek.org] > Sent: Wednesday, March 16, 2016 1:32 PM > To: intel-gfx@lists.freedesktop.org > Cc: Kay, Allen M <allen.m....@intel.com> > Subject: [PATCH] drm/i915: add another virtual PCH bridge for passthrough > support > > Some configs use the P2X type but some use a P3X type PCH, so add that to > the detect_pch function so things work correctly. > > Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org> > --- > drivers/gpu/drm/i915/i915_drv.c | 1 + > drivers/gpu/drm/i915/i915_drv.h | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_drv.c > b/drivers/gpu/drm/i915/i915_drv.c index 20e8200..6ad4390 100644 > --- a/drivers/gpu/drm/i915/i915_drv.c > +++ b/drivers/gpu/drm/i915/i915_drv.c > @@ -504,6 +504,7 @@ void intel_detect_pch(struct drm_device *dev) > WARN_ON(!IS_SKYLAKE(dev) && > !IS_KABYLAKE(dev)); > } else if ((id == INTEL_PCH_P2X_DEVICE_ID_TYPE) || > + (id == INTEL_PCH_P3X_DEVICE_ID_TYPE) || > ((id == > INTEL_PCH_QEMU_DEVICE_ID_TYPE) && > pch->subsystem_vendor == 0x1af4 && > pch->subsystem_device == 0x1100)) { diff - > -git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 9e76bfc..e53cd42 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -2695,6 +2695,7 @@ struct drm_i915_cmd_table { > #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_P3X_DEVICE_ID_TYPE 0x7000 > #define INTEL_PCH_QEMU_DEVICE_ID_TYPE 0x2900 /* qemu q35 > has 2918 */ > > #define INTEL_PCH_TYPE(dev) (__I915__(dev)->pch_type) > -- > 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
