drm/i915/gvt: Enable mmio context init and switch for BXT.

Handle pending tlb flush, mocs/mmio switch and context as KBL.

Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

diff --git a/drivers/gpu/drm/i915/gvt/mmio_context.c b/drivers/gpu/drm/i915/gvt/mmio_context.c
index 708170e61625add3c2493cbecfd805d38b4cd941..20be9a92600f0f99cd5a688929251c071307afe1 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/mmio_context.c
+++ b/drivers/gpu/drm/i915/gvt/mmio_context.c
@@ -364,7 +364,8 @@ static void handle_tlb_pending_event(struct intel_vgpu *vgpu, int ring_id)
         */
        fw = intel_uncore_forcewake_for_reg(dev_priv, reg,
                                            FW_REG_READ | FW_REG_WRITE);
-       if (ring_id == RCS && (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)))
+       if (ring_id == RCS && (IS_SKYLAKE(dev_priv) ||
+                       IS_KABYLAKE(dev_priv) || IS_BROXTON(dev_priv)))
                fw |= FORCEWAKE_RENDER;
 
        intel_uncore_forcewake_get(dev_priv, fw);
@@ -401,7 +402,7 @@ static void switch_mocs(struct intel_vgpu *pre, struct intel_vgpu *next,
        if (WARN_ON(ring_id >= ARRAY_SIZE(regs)))
                return;
 
-       if (IS_KABYLAKE(dev_priv) && ring_id == RCS)
+       if ((IS_KABYLAKE(dev_priv) || IS_BROXTON(dev_priv)) && ring_id == RCS)
                return;
 
        if (!pre && !gen9_render_mocs.initialized)
@@ -467,7 +468,9 @@ static void switch_mmio(struct intel_vgpu *pre,
        u32 old_v, new_v;
 
        dev_priv = pre ? pre->gvt->dev_priv : next->gvt->dev_priv;
-       if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
+       if (IS_SKYLAKE(dev_priv)
+               || IS_KABYLAKE(dev_priv)
+               || IS_BROXTON(dev_priv))
                switch_mocs(pre, next, ring_id);
 
        for (mmio = dev_priv->gvt->engine_mmio_list.mmio;
@@ -479,7 +482,8 @@ static void switch_mmio(struct intel_vgpu *pre,
                 * state image on kabylake, it's initialized by lri command and
                 * save or restore with context together.
                 */
-               if (IS_KABYLAKE(dev_priv) && mmio->in_context)
+               if ((IS_KABYLAKE(dev_priv) || IS_BROXTON(dev_priv))
+                       && mmio->in_context)
                        continue;
 
                // save
@@ -574,7 +578,9 @@ void intel_gvt_init_engine_mmio_context(struct intel_gvt *gvt)
 {
        struct engine_mmio *mmio;
 
-       if (IS_SKYLAKE(gvt->dev_priv) || IS_KABYLAKE(gvt->dev_priv))
+       if (IS_SKYLAKE(gvt->dev_priv) ||
+               IS_KABYLAKE(gvt->dev_priv) ||
+               IS_BROXTON(gvt->dev_priv))
                gvt->engine_mmio_list.mmio = gen9_engine_mmio_list;
        else
                gvt->engine_mmio_list.mmio = gen8_engine_mmio_list;