diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/render.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/render.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c index 44136b1f3aab..2b3a642284b6 100644 --- a/drivers/gpu/drm/i915/gvt/render.c +++ b/drivers/gpu/drm/i915/gvt/render.c @@ -236,12 +236,18 @@ static void restore_mocs(struct intel_vgpu *vgpu, int ring_id) } } +#define CTX_CONTEXT_CONTROL_VAL 0x03 + void intel_gvt_load_render_mmio(struct intel_vgpu *vgpu, int ring_id) { struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; struct render_mmio *mmio; u32 v; int i, array_size; + u32 *reg_state = vgpu->shadow_ctx->engine[ring_id].lrc_reg_state; + u32 ctx_ctrl = reg_state[CTX_CONTEXT_CONTROL_VAL]; + u32 inhibit_mask = + _MASKED_BIT_ENABLE(CTX_CTRL_ENGINE_CTX_RESTORE_INHIBIT); if (IS_SKYLAKE(vgpu->gvt->dev_priv)) { mmio = gen9_render_mmio_list; @@ -257,6 +263,17 @@ void intel_gvt_load_render_mmio(struct intel_vgpu *vgpu, int ring_id) continue; mmio->value = I915_READ(mmio->reg); + + /* + * if it is an inhibit context, load in_context mmio + * into HW by mmio write. If it is not, skip this mmio + * write. + */ + if (mmio->in_context && + ((ctx_ctrl & inhibit_mask) != inhibit_mask) && + i915.enable_execlists) + continue; + if (mmio->mask) v = vgpu_vreg(vgpu, mmio->reg) | (mmio->mask << 16); else |